549300ORR0M8XF56OI64
2021-12-31
549300ORR0M8XF56OI64
2020-12-31
549300ORR0M8XF56OI64
2021-01-01
2021-12-31
549300ORR0M8XF56OI64
2020-01-01
2020-12-31
549300ORR0M8XF56OI64
2019-12-31
549300ORR0M8XF56OI64
2020-01-01
2020-12-31
ifrs-full:IssuedCapitalMember
549300ORR0M8XF56OI64
2020-01-01
2020-12-31
ifrs-full:SharePremiumMember
549300ORR0M8XF56OI64
2020-01-01
2020-12-31
ifrs-full:OtherReservesMember
549300ORR0M8XF56OI64
2020-01-01
2020-12-31
ifrs-full:CapitalRedemptionReserveMember
549300ORR0M8XF56OI64
2020-01-01
2020-12-31
ifrs-full:RetainedEarningsMember
549300ORR0M8XF56OI64
2021-01-01
2021-12-31
ifrs-full:IssuedCapitalMember
549300ORR0M8XF56OI64
2021-01-01
2021-12-31
ifrs-full:SharePremiumMember
549300ORR0M8XF56OI64
2021-01-01
2021-12-31
ifrs-full:OtherReservesMember
549300ORR0M8XF56OI64
2021-01-01
2021-12-31
ifrs-full:CapitalRedemptionReserveMember
549300ORR0M8XF56OI64
2021-01-01
2021-12-31
ifrs-full:RetainedEarningsMember
549300ORR0M8XF56OI64
2019-12-31
ifrs-full:IssuedCapitalMember
549300ORR0M8XF56OI64
2019-12-31
ifrs-full:SharePremiumMember
549300ORR0M8XF56OI64
2019-12-31
ifrs-full:OtherReservesMember
549300ORR0M8XF56OI64
2019-12-31
ifrs-full:CapitalRedemptionReserveMember
549300ORR0M8XF56OI64
2019-12-31
ifrs-full:RetainedEarningsMember
549300ORR0M8XF56OI64
2020-12-31
ifrs-full:IssuedCapitalMember
549300ORR0M8XF56OI64
2020-12-31
ifrs-full:SharePremiumMember
549300ORR0M8XF56OI64
2020-12-31
ifrs-full:OtherReservesMember
549300ORR0M8XF56OI64
2020-12-31
ifrs-full:CapitalRedemptionReserveMember
549300ORR0M8XF56OI64
2020-12-31
ifrs-full:RetainedEarningsMember
549300ORR0M8XF56OI64
2021-12-31
ifrs-full:IssuedCapitalMember
549300ORR0M8XF56OI64
2021-12-31
ifrs-full:SharePremiumMember
549300ORR0M8XF56OI64
2021-12-31
ifrs-full:OtherReservesMember
549300ORR0M8XF56OI64
2021-12-31
ifrs-full:CapitalRedemptionReserveMember
549300ORR0M8XF56OI64
2021-12-31
ifrs-full:RetainedEarningsMember
iso4217:EUR
iso4217:EUR
xbrli:shares

2021

1.
ACTIVITY REPORT
..............................................................................................................................
1.1
Who we are
-
Business Overview
................................................................................................
1.2
Our Strategy
................................................................................................................................
.
1.3
What different
iates Cely
ad Oncology?
..........................................................................................
1.4
Our Activities and R&D
.................................................................................................................
1.5
Lead Programs
.............................................................................................................................
1.6
Licensing an
d Collaboratio
n Agreement
s
.....................................................................................
1.7
Our Manufactu
ring Capabil
ities
.....................................................................................................
1.8
Our sharehold
ing struct
ure
...........................................................................................................
1.
Post balance s
heet events
............................................................................................................
1.10
O
ur capital exp
enditures
...............................................................................................................
1.11
F
inancial rev
iew of the year e
nding Decemb
er 31, 2021
..............................................................
1.11.1.
Analysis of t
he consolidat
ed income st
atement
..............................................................
1.11.2.
Analysis of t
he consolidat
ed statement
s of financi
al position
.........................................
1.11.3.
Analysis of t
he consolidat
ed net cash burn r
ate
........................................................
1.12
P
ersonnel
......................................................................................................................................
1.13
E
nvironment
..................................................................................................................................
1.14
G
oing concern
.........................................................................................................................
1.15
R
isks and uncer
tainties
.................................................................................................................
1.16
E
vents and circ
umstances th
at could have a s
ignificant im
pact on the fut
ure
..............................
2.
CORPORATE GO
VERNANCE
.............................................................................................................
2.1
General
.........................................................................................................................................
2.2
Board of Direct
ors
.........................................................................................................................
2.2.1.
Compositio
n of the Board of D
irectors
............................................................................
2.2.2.
Board resoluti
ons
............................................................................................................
2.2.3.
Director Ind
ependence
...................................................................................................
2.2.4.
Role of the Bo
ard in Risk Over
sight
................................................................................
2.2.5.
Committees wi
thin the Board
of Directors
.......................................................................
2.2.6.
Meetings of t
he Board and the c
ommittees
.....................................................................
2.3
Executive Com
mittee
....................................................................................................................
2.4
Conflict of Int
erest of Dir
ectors and memb
ers of the Ex
ecutive Committ
ee and transact
ions with
affiliated c
ompanies
......................................................................................................................
2.4.1.
General
...........................................................................................................................
2.4.2.
Conflicts of int
erest
of Directors
......................................................................................
2.4.3.
Existing conf
licts of int
erest of member
s of the Board of Di
rectors
................................
2.4.4.
Related Party T
ransactions
.............................................................................................
2.4.5.
Transactions
with affil
iates
..............................................................................................
2.4.6.
Code of Busines
s Conduct and E
thics
............................................................................
2.4.7.
Market abuse regu
lations
................................................................................................
2.5
Corporate Gov
ernance Code
........................................................................................................
2.6
Remuneration P
olicy
.....................................................................................................................
2.6.1.
Introductio
n
.....................................................................................................................
2.6.2.
Remuneration
of the Board of
Directors
.........................................................................
2.6.3.
Remuner
ati
on of the Execut
ive Committ
ee
.....................................................................
2.6.4.
Deviations from this Policy
..............................................................................................
2.7
Remuneration r
eport
.....................................................................................................................
2.7.1.
Introductio
n
.....................................................................................................................
2.7.2.
Total Remuner
ation
........................................................................................................
2.7.3.
Share
-
based R
emuneratio
n
............................................................................................
2.7.4.
Termination I
ndemnities
................................................................................................
.
2.7.5.
Use of the possibi
lity to rec
laim the variab
le remunerat
ion
.............................................

2.7.6.
Deviations fr
om the Remune
ration Polic
y
.......................................................................
2.7.7.
Evolution of t
he remunerat
ion and the p
erformance of
the company
and ratio
2.7.8.
Taking into con
sideration of
the vote of t
he shareholders
...............................................
2.7.9.
Statutory Audit
or
.............................................................................................................
2.8
Description of
the principal
risks assoc
iated to the act
ivities of
the Group
....................................
2.8.1.
Risk Managem
ent
...........................................................................................................
2.8.2.
anization a
nd values
................................................................................................
2.8.3.
Risks analysis
.................................................................................................................
2.8.4.
Risks related t
o the Company
’s financial p
osition and cap
ital requir
ements
2.8.5.
Risks related t
o Company’s b
usiness activ
ities and ind
ustry
..........................................
2.8.6.
Risks r
elated to clinical devel
opment
.......................................................................
2.8.7.
Risks rel
ated to leg
al and reg
ulatory ri
sks
..............................................................
2.8.8.
Risks re
lated t
o intell
ectua
l propert
y
.......................................................................
2.8.9.
author
isatio
n risks
..............................................................................................
2.8.10.
Risks lin
ked to t
he Compa
ny’s re
liance
on thir
d parties
.......................................
2.8.11.
Risks re
lated t
o the shar
es
........................................................................................
2.8.12.
Audit activiti
es
.................................................................................................................
2.8.13.
Controls, s
upervision and c
orrectives ac
tions
................................................................
3.
GROUP STRUCTURE
, SHAREHOLDING AND SHA
RE CAPITAL
....................................................
3.1
Group structur
e
.............................................................................................................................
3.2
Capital incr
ease and issua
nce of shares
......................................................................................
3.3
Warrants pla
ns
..............................................................................................................................
3.4
Changes to the
share capital
........................................................................................................
3.5
Major Sharehol
ders
.......................................................................................................................
3.6
Anti
-
takeover
provisions
under Belgi
an laws
................................................................................
3.7
Financial serv
ices
.......................................................................................................................
4.
CONSOLIDATED F
INANCIAL STAT
EMENTS
..................................................................................
4.1
Responsibil
ity statement
.............................................................................................................
4.2
Statutory aud
itor’s repor
t to the gener
al meeting of
sharehold
ers of Celyad O
ncology SA
for the
year ended De
cember 31, 20
21 (consolidat
ed financial s
tatements
)
.........................................
4.3
Consolidate
d financial st
atements as at
December 31,
2021
.....................................................
4.3.1.
Consolidate
d statements of
financial p
osition
...............................................................
4.3.2.
Consolidate
d statements of
comprehens
ive loss
..........................................................
4.3.3.
Consolidate
d statements of
changes in equ
it
y
..............................................................
4.3.4.
Consolidate
d statements of
Cash flows
........................................................................
5.
NOTES TO THE CONSOLI
DATED FINANCIAL ST
ATEMENTS
.......................................................
5.1
General inform
ation
....................................................................................................................
5.2
Basis of prepar
ation and si
gnificant acc
ounting pol
icies
.............................................................
5.2.1.
Basis of prepar
ation
......................................................................................................
5.2.2.
Consolidatio
n
................................................................................................................
5.2.3.
Foreign curren
cy translat
ion
.........................................................................................
5.2.4.
Revenue
.......................................................................................................................
5.2.5.
Other income
................................................................................................................
5.2.6.
Intan
gible as
sets
...........................................................................................................
5.2.7.
Property, pla
nt and equipme
nt
......................................................................................
5.2.8.
Leases
..........................................................................................................................
5.2.9.
Impairment
of non
-
financia
l assets
...............................................................................
5.2.10.
Cash and cash
equivalents
...........................................................................................
5.2.11.
Financial ass
ets
............................................................................................................
5.2.12.
Financial liabilit
ies
.........................................................................................................
5.2.13.
Provisions
.....................................................................................................................
5.2.14.
Income Taxes
...............................................................................................................
5.2.15.
Earnings (loss)
per share
..............................................................................................

5.2.16.
Equity
...........................................................................................................................
5.3
Risk Managem
ent
.......................................................................................................................
5.4
Critical acc
ounting esti
mates and jud
gments
........................................................................
5.5
Operating seg
ment informat
ion
...................................................................................................
5.6
Intangible as
sets
.........................................................................................................................
5.6.1.
Intangible as
sets details an
d balance rol
l forward
........................................................
5.6.2.
Impairment
testing
........................................................................................................
5.7
Property, pla
nt and equipme
nt
....................................................................................................
5.8
Non
-
current tr
ade receivab
les and other
non
-
cur
rent assets
......................................................
5.9
Trade receivab
les and other c
urrent assets
................................................................................
5.10
S
hort
-
term inv
estments
...............................................................................................................
5.11
C
ash and cash
equivalents
.........................................................................................................
5.12
S
ubsidiaries f
ully conso
lidated
....................................................................................................
5.13
S
hare Capital
..............................................................................................................................
5.14
S
hare
-
based p
ayments
...............................................................................................................
5.15
em
ployment ben
efits
..........................................................................................................
5.16
R
ecoverable C
ash Advances
......................................................................................................
5.17
O
ther non
-
curr
ent liabilit
ies
.........................................................................................................
5.18
T
rade payable
s and other cur
rent liabil
ities
................................................................................
5.19
F
inancial liabilit
ies
.......................................................................................................................
5.19.1.
Maturity anal
ysis
...........................................................................................................
5.19.2.
Changes in lia
bilities ari
sing from
financing act
ivities
...................................................
5.20
ns
truments
..................................................................................................................
5.20.1.
Financial ins
truments not
report
ed at fair value on s
tatement of
financial pos
ition
5.20.2.
Financial ins
truments r
eported at
fair value on st
atement of financ
ial positi
on
5.21
I
ncome taxes
..............................................................................................................................
5.22
erves
............................................................................................................................
5.23
R
evenue
.....................................................................................................................................
5.24
R
esearch and
Development e
xpenses
.......................................................................................
5.25
G
eneral and Adm
inistrativ
e expenses
........................................................................................
5.26
D
epreciation a
nd amortizat
ion
....................................................................................................
5.27
E
mployee ben
efit expenses
........................................................................................................
5.28
C
hange in fair
value of contin
gent consid
eration, ot
her inco
me and other expens
es
5.29
N
on
-
recurring
operating i
ncome and expe
nses
..........................................................................
5.30
Leas
es
........................................................................................................................................
5.31
F
inance incom
e and expenses
...................................................................................................
5.32
Los
s per share
............................................................................................................................
5.33
C
ontingent ass
ets and liab
ilities
..................................................................................................
5.34
C
ommitments
..............................................................................................................................
5.34.1.
Celdara
.........................................................................................................................
5.34.2.
Horizon Discovery / PerkinElmer
..................................................................................
5.34.3.
Other Commitm
ents
......................................................................................................
5.35
R
elated
-
party
transacti
ons
..........................................................................................................
5.35.1.
Remuneration
of key manage
ment
...............................................................................
5.35.2.
Transactions
with non
-
ex
ecutive dir
ectors
....................................................................
5.35.3.
Transactions
with share
holders
....................................................................................
5.36
E
vents after t
he close of the fi
scal year
......................................................................................
5.37
S
tatutory acc
ounts as of Dec
ember 31, 202
1 and 2020 acc
ording to Belg
ian GAAP
5.37.1.
Balance Sheet
..............................................................................................................
5.37.2.
Income statem
ent
.........................................................................................................
5.37.3.
Notes
............................................................................................................................
5.37.4.
Summary of va
luation rules
..........................................................................................

This Annual R
eport
(the “Report”) is dated
M
arch 24,
contains
all requir
ed infor
mation as per
the
The affiliates i
ncluded in this
are
Celyad Oncology SA, B
iological Manuf
acturing Ser
vices SA, Cely
ad
Inc
.
, and CorQuest
Medical In
c.
Celyad and its aff
iliates will b
e collectiv
ely refer
red to as “the C
ompany”, “
the Group”, “
Celyad”,
The Company
publi
shes
this
Report in French, in accordanc
e with Belgian l
aw
s
. The Company al
so provide
s
an English tra
nslation.
In case of
interpretat
ion, the F
rench version wi
ll prevail.
A printed copy
of the Report
is available f
ree of charge u
pon request t
o:
B-1435 Mont-Saint-Guibert, Belgium
An electronic version of this Report is available on the Company website
http://www.celyad.com/investors/regulated
FORWARD LOOKING
STATEMENTS
This release may contain forwar
d-
looking statements, within the meaning of applicable securities laws, including t
he Privat
e Securities
Litigation Reform Act of 1995.
F
orward
-
looking statements include statements regarding: the KEYNOTE
-
B79 trial and the
cli
nical hold.
Forward
atements may involve known and unknown risks and un
certainties which might cause actual results, financial condition,
performance or achievements of
C
elyad Oncology to differ
mate
rially from those expressed or
implied by such forward
-
looking statements.
Su
ch risks and uncertainties can be
f
ound in Celyad Oncology’s U.S. Se
c
urities and Exchange Commission (SEC) filings and
report
s,
including in the latest Annual Report on Form 20
-
F filed with the SE
C and subsequent filings and reports by Celyad On
cology. The
se
forward
-
looking statements speak only as of the date
of publicati
on of this document and Cel
yad Oncology’s actual results may differ
materially from those expressed or implied by these fo
rward
-
looking statements. Celyad Oncology expressly disclaims any obligation to
update any such forward
-
looking statements in thi
s
document to reflect any change in it
s
expectations with regard thereto or an
y change
in events, conditions or circumstances on
whi
ch any such statement is ba
sed, unless required by law or reg

Over 2021, the
hard work and dedicati
on of the entire C
elyad Oncology t
eam has helped us t
o continue to
make steady p
rogress adva
ncing our m
ission to dev
elop next
-
generation
allogeneic
CAR T candidat
es
offer new ther
apeutic optio
ns to cancer pat
ients with poor
prognosis
. Our developm
ent pipeline ha
s
continued t
o transition t
o an allogeneic s
trategy cent
ered aroun
d i) our sin
gle
-
step engin
eering, All
vector approac
h and ii) our propriet
ary
gene edit
ed technolog
ies includin
g short hairpin RNA
(shRNA)
and
T cell receptor I
nhibitory
Molecule (TIM)
.
hroughout
the past twelve months,
we’ve announce
d
encouragin
g clinical dat
a from our
at m
ajor scienti
fic conferenc
es and further
built our pos
ition as
a leader in the f
ield of allogen
eic CAR T cell t
herapies.
Reflect
ing and Driving the “
CAR” Forward
At Celyad Oncolo
gy (the “Com
pany”), we h
ave made it a pri
ority to
lever
age our expert
ise, experi
ence and
technology t
o
the Company
a leader
in the
allogeneic CA
R T therapy spac
e
.
Although the p
atient
-
der
ived autol
ogous approac
h has been
successful i
n some malig
nancies, ther
e remains
a great need for
therapies
n other kinds
of tumors t
hat could benef
it from the “
off
-
Right now, we
re part
icularly
excited about
our shRNA t
echnology
. This
dif
ferentiated
techn
ology
allows
us
to
modulat
e gene expressi
on without the need f
or gene
-
editing
or the use of
multiple vector
s
.
Importantly,
with shRNA t
echnology,
we can adjus
t expres
sion of key
genes to cre
ate investigat
iona
l
allogeneic ce
ll therapies
. With shRNA,
we seek to interf
ere
wit
h
the
expression
of
the
CD3ζ
component
of
the T cell receptor
complex
w
hile improvin
g
the ov
erall profile of t
hese cutting
cand
idates wit
h less
complexity of
multi
-
vect
or approac
hes. We t
ruly believ
e there’s t
remendous
potential
for implement
ing
shRNA
techno
logy in th
e development of
next
-
gener
ation a
llogeneic CA
R T cell thera
pies and we’re
only
beginning t
o scratch the sur
fa
In 2021, w
sev
eral impor
tant clinica
l mileston
es
as we co
ntinued to
deliver on
our
goal o
f
advancing
i
nvestigat
ional
all
ogeneic CAR T
therapies
rd
American Society of Hematology (ASH) Annual Mee
clinical dat
a from the
es
calation segm
ent of the I
MMUNICY
-
1 Phas
e 1 trial eva
luating CYAD
211
, a
shRNA
-
based anti
-BCMA
allogeneic CAR T candidat
e
.
Thes
e data showed evi
dence of
for CYAD
-
211 in
patients with r
elapsed or refr
actory mult
iple myeloma (r/
r MM) with a good t
olerability
profile
including no ev
idence of
Host D
isease, or
, and preliminar
y cell engra
ftment.
The
next
segment of the
study wi
ll evaluat
e
CYAD-
211 following
en
hanced lymph
odepleti
ng regimen
s
with the aim t
o improve ce
ll persiste
nce and pot
entially m
aximize the
clinical ben
efit of
anti
therapy
.
In additi
on, t
1 protocol all
ows for redos
ing
211 in certain
patients
.
Enrollment in
1 t
rial is ongoin
g
additi
onal data expec
ted in the sec
ond half of 2
In December 2021, we an
nounced dos
ing
the first
patient in the KEYNO
TE
-
B79 Phas
e 1b trial evaluat
ing
our TIM
-
base
d NKG2D receptor
allogeneic
KEYTRUDA® (pem
brolizuma
b), in patient
s with refr
actory met
astatic color
ectal canc
er (mCRC) wi
th
microsatellite stable (MSS)/mismatch
-
repair profici
ent dise
ase. Unfort
unately, Febr
uary 202
2
unexpected chal
lenge, and we v
oluntarily paus
ed this trial and subs
equently ann
ounced an FDA hold.
Patient safety
is our number o
ne priority,
and we are curre
ntly workin
g to investigat
e these event
s. We plan
to have an update f
or stakeholder
s in
the ne
ar future.
In July 2021,
we introduc
ed our armored
CAR T fr
anchise cent
ered on t
he proinfla
mmatory cy
tokine
interleukin
-
18,
or IL
-
18. I
L
-
18’s dual mec
hanism of
action direct
ly potentiate
s the anti
T cells while al
so altering
and anti
-
inflamm
atory cells w
ithin

Currently, w
e are conduct
ing Invest
igationa
l New Drug (I
ND)
-
enablin
g studies for CYA
D
-
shRNA
-
based
al
logeneic
ar
mored
CAR T
candidate engin
eered to co
-
-
18
receptor.
W
e anticipat
e the submissio
n of an
IN
D application
for
CYAD-
203.
Lastly, regar
ding our
aut
ologous NKG
2D CAR T candi
date CYAD
-
0
2, we announce
d the
latest data fro
m the program
at ASH in Dec
ember 2021.
Resul
1 t
rial eval
uating
02
for the
treatment of relapsed or refractory (r/r) acute myeloid leukemia (AML) and myelodysplastic
syndromes (MDS)
a single shRNA
can target t
wo independent gen
es to optimize CAR T
cell
phenotype
believe
clinical
data
support the
potential and v
ersatil
ity of the s
hRNA
platform while
further valid
ating its uniq
ueness amon
g currently av
ailable gene
expression c
ontrol
technologies
for the devel
opment of next
-
generat
ion CAR T ther
apies
.
As we evaluat
e our progr
ess, it is im
portant to r
emember that t
he true po
tential for our
company a
nd its
technologies r
eaches far beyond t
he current devel
opment pipeli
ne. I’m deeply
grateful to all of our
team
members
who
tireles
sly deliv
er each and e
very day wit
h dedicatio
n in pursuit
of our mission t
o develo
p
innovative c
ell therapies
against canc
er.
The value and opp
ortunity pro
vided by our te
am, developme
nt pipeline an
d underlying pl
atform techno
logies
are key points
of focus for our
investors.
We
rema
in steadf
ast in the goal of f
urtherin
g our pipeline of
investigatio
nal
allo
geneic CAR T t
herapies in this new ye
ar. We appreci
ate the ongoing s
upport of our
investors as
we execute o
n our growt
h strategy. O
n behalf of t
he entire Cel
yad
members, I wis
h you and your loved o
nes a happy, he
althy and fulf
illing 202
2!
Filippo Petti, CEO Cely
ad

1.1
Who we are
-
Business Overview
We are a cli
nical
-
stage b
iotechnol
ogy company f
ocused
on the disc
overy and dev
elopment of c
himeri
c
antigen recept
or T cell
(CAR T) t
herapies for
cancer. Our
goal is to
discover,
develop and c
ommerciali
ze
our next
-
gener
ation CAR T cell thera
py product c
andidates, if appr
oved. We ar
e currently devel
oping a
diversified pi
peline of allog
eneic and aut
ologous CAR T c
ell therapy can
didates for
the treatment of
both
hematologica
l malignanc
ies and sol
id tumors.
Our differenti
ated pipelin
e of next gen
eration CAR T c
andidates is bas
ed off the two m
ain approaches
in the
field of CAR T:
allogeneic
, or off
-
shelf, and a
utologous,
or personaliz
ed, therap
ies. Allog
eneic CAR T
cells are pre
pared in adva
nce from healthy
donors a
nd are stored f
rozen unt
il a patient re
quires treat
ment.
With the autolo
gous approach
, CAR T cells are deriv
ed from
the patients them
selves, fir
st by collection
of
the patient’s i
mmune cells t
hrough a proces
s called leu
kapheresis,
and then the pat
ient’s cells ar
e
engineered an
d reintroduc
ed back into t
he patient vi
a infusion.
Over the past
few years,
as the CAR
T landsc
ape has shift
ed towards
pursuing off
-
shelf
approache
s,
we have continue
d to steadil
y progress our
allogeneic
CAR T franchi
se and programs
by exploring t
wo
proprietary,
non
-
gene
edited techn
ology plat
forms to target
the T cel
l receptor
(TCR) co
RNA (shRNA) and T cel
l receptor inhibit
ory molecule (T
IM). In allogene
ic adoptive c
ell therapy, t
he infusion
of donor
-
deri
ved T cells to c
ancer pati
ents with a d
ifferent bac
kground th
an that of the
donor may lea
d to
multiple react
ions. T
hese reactions inc
lude the donor
cells attack
ing the patient’s he
althy tissue,
known as
Graft
-versus-
Host disease (GvHD)
, as well as t
he rejectio
n of the therap
y by the pati
ent’s immune sy
stem
known as Host
-versus-
Graft (HvG) reaction.
The TCR, a molec
ule present
on the surface of
T cells, is princip
ally respo
nsible for Gv
HD. At the cent
er of
allogeneic CA
R T therapy, the goa
l is to eliminat
e or blunt the sign
aling of the T
CR through engineer
ing with
a specific tech
nology. By red
ucing the sign
aling of the TCR,
the engineered all
ogeneic CAR T
cells fail to
recognize th
e patient’s he
althy tiss
ue as foreign, wh
ich avoids
GvHD.
We believe non
-
g
ene edite
d technologi
es offer t
he opportunit
y to target
the TCR specif
ically wit
hout
extensive ge
netic manipul
ation. T
hrough the co
-
ex
pression of our n
on
-
gene ed
ited techno
logies wit
h a
specific CAR o
f interest
, we can desig
n cell t
herapy candi
dates inte
nded to inhi
bit the fu
nction of the T
CR
while allowing t
he donor
-
deri
ved T cells to target
the cancer. We believ
e this unique s
trategy offers
a
streamlined a
pproach in a
dvancing the al
logeneic CA
R T landscape.
Our propriet
ary non
-
gene ed
ited technol
ogies, shRNA
and TIM, off
er a unique strateg
y and streaml
ined
approach to all
ogeneic CAR T
development
:
•
Short hairpi
n RNA (shR
shRNA is a dynamic, innov
ative technol
ogy that rel
ies on RNA
interference.
The techno
logy allow
s for the dev
elopment of
allogeneic
CAR Ts thr
ough the sel
ection
of
an
o
ptimal
s
hRNA,
tar
geting CD3ζ,
a
key
c
omponent of
t
he
TCR complex.
This results
in
du
rable
high
-
level knockdow
n of
t
he TCR on
T
cells to
a level equivalent
to that
se
en if
t
he CD3ζ gene was
gene edited wi
th CRISPR/
Cas9. In precli
nical exper
iments,
the persiste
nce of non
allogeneic T c
ells generated wi
th shRNA was st
atistically s
uperior to simi
lar cells gener
ated with
CRISPR/Cas
9. Preclinica
l models
have also show
n the broad ap
plicabilit
y of shRNA tec
hnology t
o
knockdown a
diverse set of
gene targets,
includin
g beta
-2-
microglobulin (B2M), CD52, PD
-
1,
MICA/MICB
and the intracellu
lar lipid kinas
e diacylg
lycerol ki
nase (DGK). I
n addition, we have
demonstrated
concurrent
knockdow
n of multi
ple gene tar
gets, or mult
iplexing, us
ing our shR
NA

•
T cell Inhibit
ory Molecul
e (TIM).
O
ur novel TIM pepti
de interfer
es with th
e abilit
y of the TCR to sig
nal
and
is
designed
to
prevent
GvHD.
TIM
is
a
truncated
form
of
the
CD3ζ
component
of
the
TCR
complex which
lacks the critic
al signaling do
mains of the wi
ld
-
type CD
3ζ. I
n our
allogene
ic
CAR T
candidate CYA
D
-
101, TI
M is co
-
ed with a NKG
2D CAR to reduc
e the potentia
l of the TCR
to induce GvH
D. Following t
he expressi
on of TI
M, the peptide acts as a c
ompetitiv
e inhibitor
to
wild
-
type CD3ζ
and is incor
porated int
o the TCR c
omplex.
Central to our
pipeline is a cu
tting
-
edge Al
l
One vector a
pproach where
we focus on using a s
ingle vec
tor
to generate CA
R T cells to s
implify t
he design a
nd developm
ent of our c
ell therapy c
andidates.
The All
One vector appr
oach encodes
multiple compon
ents of the CA
R T construct s
imultaneous
ly, in
CAR, our non
-
gen
e editing techno
logies includi
ng shRNA and TI
M, cell selection m
arker to assist
with the
enrichment of t
he manufactur
ed cells and potenti
al therapeutic ad
d
-
ons such as cytokines. This single
transduction,
plug and play
approach to CA
R T development has
the potential t
o streamline proc
ess
development a
nd manufactur
ing while br
oadening t
he potential a
pplicabil
ity of our candi
dates
.
shARC
TM
Platform
Our shRNA arm
ored CAR T, or shA
RC, platform
combines CARs dev
eloped
using our shR
NA technol
ogy along wit
h the co
-
expr
ession of cyt
okines, includi
ng
interleukin
-
18),
and is
designed to provi
de a more robust
CAR T cell
therapy to enh
ance anti
-
tum
or effect
s and optimize t
herapy for
cancer patients
.
Specifically, IL
-
18 is a pr
oinflammat
ory cytokine t
hat directly pot
entiates th
e anti
-
cancer activity of CAR T
cells while als
o altering t
he balance of pro
-
an
d anti
-
inflam
matory cells
within tum
or tissue. We ar
e currently
exploring ad
ditional plat
form asset
s with specif
ic cytokines i
n our preclinic
al pipeli
ne.

The pipeline b
elow presents
our allogenei
c and autol
ogous product
candidates.
AML: Acute myeloid leukemia; BCMA: B
maturation antigen; mCRC: Metastatic colorectal cancer; MDS:
Myelodysplastic syndrome; MM:
Multiple myeloma; NKG2DL: Nat
ural killer group 2D ligands; r/r: rel
apse/refractory.
Our lead produ
ct candidat
es include:
•
CYAD-
101 is an investigat
ional, n
on
-
gen
e edited, allo
geneic CAR T candidat
e
engineered t
o co
-
expresses t
he TIM peptide alo
ngside a CAR bas
ed on NKG2D, a r
eceptor
expressed on natura
l killer (NK)
and T cells, that binds t
o eight stress
-
induced ligands.
CYAD
-
is currently b
eing evaluat
ed
follo
wing FOLF
OX preconditi
oning chemot
herapy in the Ph
ase 1b
KEYNOTE-
B79 trial with M
SD’s anti
-
PD
-
1 ther
apy, KEYT
RUDA® (pemb
rolizumab) i
n refract
ory
metastatic col
orectal
cancer (mCRC) patients with microsatellite stable (MSS) / mismatch
-
proficien
t (pMMR) disease.
I
n December 2
021, we anno
unced the f
irst patient
was dosed i
n the
KEYNOTE-
B79 trial. In F
ebruary 2022, w
e announced our
decision t
o voluntarily p
ause the
KEYNOTE-
B79 trial to inv
estigate repor
ts of two f
atalities t
hat presented
with simil
ar pulmonar
y
findings and evalu
ate any similar
events in additio
nal patient
s treated on study.
On March 1, 2022,
we were infor
med via
-
ema
il communic
ation fr
om the FDA t
hat the KEYNO
TE
-
B79 tr
ial has bee
n
placed on clin
ical hold due t
o insuffici
ent informat
ion to asses
s risk to study
subjects.
•
CYAD
-
211
.
CYAD-
21
1 is an investig
ational,
shRNA
-
base
d allogeneic
CAR T candidat
e for the
treatment of relapsed / refractory mu
ltiple myeloma (r/r MM). CYAD
express a B cell matur
ation antigen (
BCMA) t
argeting chimeric a
ntigen receptor an
d a single
shRNA, which
interferes
with the expres
sion of t
he CD3ζ component
of the T
CR complex.
Preliminary dat
a reported i
n December 2021 f
rom the dose
-
es
calation se
gment of the I
MMUNICY
-
1 Phase 1 trial evaluat
ing CYAD
-
21
1 following Cy
flu chemothera
py in patients
with r/r MM, showed
evidence of cl
inical activ
ity with a goo
d tolerabi
lity profil
e including no
evidence of
Graft versus
Host
Disease (GvHD)
. In addition, all pat
ients in the tri
al had detectable CYAD
-
cells in the peripheral
blood. Enroll
ment is curr
ently ong
oing in the IM
MUNICY
-
1 Phas
e 1 trial t
o evaluate e
nhanced
lymphodepl
etion with the
aim to improve c
ell pers
istence and pot
entially
maximize the
clinical
benefit of CYA
D
-
211. The IMMUN
ICY
-
1 protoc
ol
211 redos
ing in certai
n

•
CYAD
-
02
.
CYAD-
02 is an investigat
ional, autol
ogous CAR T
therapy that c
o
-
NKG2D CAR and a sin
gle shRNA targ
eting the NKG2D l
igands MICA/MIC
B on the CAR
T cells. In
December 202
1, the Compan
y presented cli
nical result
s from t
he dose
-
escalati
on CYCL
1 Phase
1 trial evaluatin
g CYAD
-
02 for
the treatment of r
elapsed or refrac
tory (r/r)
acute myeloid leuk
emia
(AML) and myelodys
plastic sy
ndromes (MDS)
. Data from the trial s
howed that a single sh
RNA can
target two ind
ependent g
enes (MICA
/MICB) to en
hance the p
henotype of
the CAR T
cells. In
addition, th
e dual knock
down showed
a positiv
e contributi
on to the init
ial clinic
al activit
y of CYAD
-
02 as well as a t
rend towards
increased
engraftment
and persist
ence compare
d to the fir
st
-
generation,
autologous NKG
2D
rec
eptor CAR T.
In addition t
o our lead cl
inical prod
uct candid
ates, we have
a portfolio
of preclin
ical stag
e allogeneic
product
candidates t
argeting soli
d tumors and h
ematologic
al malignanc
ies, inc
luding:
•
-
203 is a preclin
ical, non
-
gene e
dited allogen
eic CAR T cand
idate and our f
irst
armored CAR
T candidate en
gineered t
o co
-
express t
he cyt
okine interle
ukin
-
18 (I
L
NKG2D CAR receptor. CYAD
-
203 is currently
being evaluat
ed in Investigat
ional New
Drug (IND)
-
enabling stu
dies and submis
sion of t
he IND applic
ation for t
reatment of
solid tum
ors is expec
ted in
the second half
of 2022. To t
he Company’s k
nowledge, C
YAD
-
203 is
on track to be f
irst ever IL
-
secreting all
ogeneic CAR T
candidate t
o enter clinical t
rials.
Our mi
ssion is to eliminate c
ancer and impr
ove life. We are devel
oping innovat
ive cell therapies
against
cancer and ar
e driven by t
he promis
e to deliver m
eaningf
ul treatment o
ptions to pati
ents seeki
ng hope.
Overall, our o
bjective is t
o discover, dev
elop and comm
ercialize
our next
-
gen
eration CA
R T cell therap
ies.
We are guided
by our passio
n, led by our deep
expertise i
n oncology an
d motivate
d by the patient
s we
serve. We beli
eve that our innovat
ive CAR T candi
dates, if appr
oved, could off
er patient
s with advanc
ed
disease alter
native thera
peutic opt
ions where no ot
her treatm
ents exist
. Delivering bes
t
therapies for pat
ients with unm
et medical needs is
our top priority.
We aim to do this with the f
ollowing
•
Focus o
n the developmen
t of non
-
gene edited app
roaches to allo
geneic CAR T therapies
.
We are pioneeri
ng a differenti
ated approac
h to the discov
ery and devel
opment of allo
geneic CA
R
T cell therapy
candidates f
or the treatment
of cancer led by
a pair of non
gene edite
d approaches
includin
g our s
hRNA and TIM
technologies.
Through t
he co
-
expressi
on of either tec
hnology wit
h a
specific CAR o
f interest
, we can design do
nor
-
deriv
ed cell ther
apy candid
ates intended t
o inhibit
the function of
the TCR com
plex while
allowing the T
cell pr
oduct cand
idates to t
arget ca
ncer. Our
unique strateg
y, coupled wit
h our All
On
e vector approa
ch, allows us to av
oid multiple gen
etic
modifications
and manag
e costs in the pr
oduction of o
ur cell ther
apy candid
ates. We al
so aim to
bring the broa
der potentia
l advantages
of allogeneic
CAR T therapies
to patient
s including fas
ter
delivery, great
er uniformit
y, better pat
ient accessibil
ity and increas
ed manufactur
ing scalabil
ity as
compared to a
utologous CAR
T therapies.
•
Advance our lead shRNA
-
based
allogen
eic candidat
e
CYAD
-
211 for the treatment of r/r MM.
CYAD-
211 is an
allogeneic C
AR T candidat
e engineere
d to express a si
ngle shRNA to
interfere
with the express
ion of the TCR complex,
while targeti
ng BCMA, a clinical
ly validated t
arget found
in multiple m
yeloma (MM)
. In 2021,
we reported pr
eliminary
data from th
e Phase 1 I
MMUNICY
trial evaluatin
g CYAD
-
211 for
the treatm
ent of r/r MM
following st
andard lym
phodepletin
g
chemothera
py, which show
ed CYAD
-
211 ha
d a good toler
ability profil
e and evide
nce of clinic
al
ac
tivity in the
dose
-
escal
ation segment
of the trial.
Enrollment in t
he Phase 1 IMM
UNICY
continues for c
ohorts 4 and
5 with the tr
eatment of C
YAD
-
211 f
ollowing en
hanced lymph
odepletio
n
regimens cons
isting of incr
easing doses
of cyclophosp
hamide and flud
arabine. A
dditional da
ta from
the trial are ex
pected in the s
econd half of
2022.

•
-
based allo
geneic candid
ate CYAD
-
101 fo
r the treatmen
t of advan
ced
mCRC.
The cl
inical be
nefit of CA
R T therapies f
or the treat
ment of solid t
umors has bee
n li
mited
to date partial
ly due to th
e hostile tumor
microenvir
onment (T
ME), which s
urrounds the tu
mor and
is composed o
f immune cells
, blood vess
els and ext
racellular
matrix. Our
TIM
-
bas
ed allogene
ic
CYAD-
101 product c
andidate
is engineer
ed to co
-
expres
s the
chimeri
c antigen recept
or NKG2D,
a receptor expres
sed on natural
killer and T cells that
binds to eight s
tress
-
i
nduced ligands
that are
overexpresse
d by a broa
d range of t
umors, i
ncluding mCR
C, as well
as cells wit
hin the TM
E such
as myeloid
-
der
ived suppre
ss
or cells (MDSCs) and regulatory T cells (Tregs). CYAD
-
101 is t
he first
allogeneic
CAR T candidat
e, to our know
ledge, whic
h has demonst
rated confir
med objec
tive
responses in t
he treatment of
a solid tumor in
dication, s
pecificall
y advanced
mCRC, with no c
l
evidence of G
vHD. Based on t
he encourag
ing data to
date for CYA
D
-
101, we si
gned a cli
nical trial
collaborati
on with MSD, a t
radename of Mer
ck, to evaluat
e CYAD
-
10
1 with Merck’s
anti
-PD1
therapy, KEYT
RUDA® (pem
brolizum
ab). In Decem
ber 2021,
we announc
ed the first
patient wa
s
dosed in the KEY
NOTE
-
B79 trial
. In February 20
22, we announce
d our decision t
o voluntaril
y
pause the KEY
NOTE
-
B79 trial t
o investigat
e reports of t
wo fatalities t
hat present
ed with simil
ar
pulmonary find
ings and evaluat
e any similar event
s in additional pat
ients tr
eated on study. On
March 1, 2022, we wer
e informed via
-
em
ail communic
ation fr
om the FDA that the KEYNO
TE
-
trial has been p
laced on clin
ical hold du
e to insuffic
ient inform
ation to asse
ss risk to st
udy subjects.
•
Focus on
armoring CAR Ts t
o enhance anti
-
cancer activity.
We are cur
rently explori
ng an
armored CAR tec
hnology in c
onjunction wit
h our shRNA pl
atform t
o develop allogenei
c CAR Ts to
further optimiz
e cell ther
apies for c
ancer patients.
Armored CAR T
s are T cells e
ngineere
d to co
-
express a CAR
as well as secr
ete specific cy
tokines in ord
er to increas
e the anti
-
t
umor act
ivity of
CAR T cells.
These armore
d CAR Ts f
ortify the ce
ll therapy
to overcom
e the hosti
le TME and
drive
a strong anti
t armored CAR Ts are focused on t
he expression of
the cytokine
Interleukin
-
1
8, or IL
-
18. We bel
ieve IL
-
18 is an id
eal cytoki
ne for our armor
ed CAR T franchi
se as
it directly incr
eases the anti
-
c
ancer activit
y of CAR T cells
while also alter
ing the bala
nce of pro
-
and anti
-
inflam
matory cell
s within tumor
tissue. Ar
ming CAR Ts with I
L
-
18 offer two key
effects: (1)
an autocrine e
ffect, w
here the IL
-
18 cyt
okine ca
n have a benef
icial impac
t on the CAR
T cell
function and (
2) a paracrine eff
ect, where the I
L
-
18 cytok
ine can drive the
strongly
immunosuppre
ssive envir
onment, present
within the major
ity of tumor
s, to an environme
nt that's
more pro
-
We are currently
evaluating th
e co
-
expressi
on of IL
-
18 in mult
iple
discovery
-
st
age next
-
gener
ation, shR
NA
-b
ased allo
geneic CAR T
candidates
for our armored CA
R
franchise, r
eferred to as our shA
RC platform
. Our first
andidat
e in the armored CA
R
franchise is CY
AD
-
an a
llogeneic s
hRNA
-
based I
L
-
armored N
KG2D CAR T c
andidate.
•
Broa
den our shRNA
-b
ased allogen
eic pipelin
e to explore addi
tional cancer and
shRNA
targets.
We are buildi
ng a diversif
ied portf
olio of allog
eneic CAR T c
andidates l
everaging o
ur
dynamic shRN
A platform t
echnology.
We are f
ocused on a m
odular app
roach to des
igning our
next
-
gen
erat
ion CAR T ca
ndidates by
incorporat
ing both cli
nically va
lidated and n
ovel tumor
targets, whi
le also inc
luding th
e simultane
ous knockdown
of multipl
e genes
of interest w
ith the co
-
expression of
multiple shR
NAs, or m
ultiplexing. O
ur current dis
covery progr
ams inclu
de cancer
targets such
as CD19, TA
G72 and GPC3,
while our mult
iplex eff
orts are foc
used on target
s such
as beta
-2-
micr
oglobulin (β
2M) and FA
S (CD95).
•
Explor
e partnership oppor
tunities for our a
utologous NKG2D f
ranchise
our
allogenei
c franchis
e, we still f
irmly belie
ve that autolog
ous CAR T cel
l therapies w
ill play a
n
important rol
e in the treatmen
t of cancers,
in particular for i
ndications suc
h as r/r AML and MDS
where there remains
a major unmet medic
al need. We are workin
g to seek a potent
ial partner t
o
aid in the furt
her developm
ent of our auto
logous NKG
2D CAR T candi
date CYAD
treatment of r
/r AML and MDS
.

•
Continue to bu
ild our p
roprietary i
n
-
house manufactu
ring exp
ertise and capabi
lities.
have develope
d a Good Manufac
turing Pr
actice (GMP)
-
compliant f
acility
for production of our
allogeneic c
andidates t
hat we believ
e allows us t
o be flexible,
rapid, and c
ost
-
eff
icient, whil
e
allowing us to
independe
ntly improve
and optimi
ze the product
ion of our cell
therapy
with the capacit
y to treat hundreds of pat
ients in our early
-
stage clinic
al programs. Lever
aging ou
r
differentiat
ed All
On
e vector appro
ach, we can enr
ich for our all
ogeneic CA
R T cells using a
n
optimized pr
ocess throu
gh positive se
lectio
n, leading to a
n approach t
hat is autol
ogous
-
lik
e for
allogeneic CA
R T. Our
in
-
house manufactu
ring facilit
y has been crit
ical in enabli
ng the delivery
of
our clinical pr
ograms. We wi
ll continue t
o develop our manufac
turing e
xpertise and c
apability
focusing on
both sup
porting ear
ly phase cli
nical test
ing but also c
oncentrat
ing on the c
hallenges o
f
scale-
up and commerc
ial level manuf
acturing of
allogeneic CA
R T cell thera
pies. Our
manufacturing
facility rem
ains cruc
ial to our long
•
Expand intell
ect
ual propert
y
portfolio.
Our robust
IP estat
e of twelve fou
ndational U.
S. patent
s
associated wit
h allogene
ic CAR T for t
he treatment of can
cer, includin
g IP for NKG
2D receptor
-
based cell ther
apies, provid
es a key asset t
o the Company. Wit
h our attractive port
folio, we are
able to strat
egically develop bot
h novel cell therapy
candidates
and potential par
tnerships
within
the allogeneic l
andscape.
In addition, we plan t
o continue to expand t
his portfoli
o to help advance
•
Drive
innovation through s
trategic colla
borations to realiz
e the full potentia
l of our unique
CAR T therapi
es.
W
e are continually ex
ploring oppor
tunities t
o build strong part
nerships wi
th
strategic orga
nizations
and key internation
al academic
institutions
to maximize the t
herapeutic
potential of our
current and f
uture product
candidates as
well as our i
ntellect
ual property.
We will
continue to ex
plore addit
ional opp
ortunities t
o create v
alue and dev
elop our plat
form tec
hnologies
and pipeline in
pursuit of our
mission.
1.3
What differentiates Celyad Oncology?
The level of act
ivity in the CAR T
landscape acr
oss the globe has ex
ploded over t
he last f
ew years. The
challenges i
n this subsec
tion of t
he oncology
industry are s
ignific
ant. Most t
umors develo
p undetected o
ver
years
, fine tuni
ng their capaci
ty to resis
t treatment, bef
ore explodin
g with clinic
ally relev
ant disease
that
rapidly overc
omes stand
ard treatment
paradi
gms. Immune
based ther
apies, incl
uding CAR T
therapies,
are
now deliverin
g clinically
relevant respons
es in cert
ain, limited mali
gnancies. T
he hope is that this
initial
clinical success with CAR T the
ra
py ca
n be further develop
ed to be effective agai
nst a much broader
range
Encouraging r
esults fr
om clinical
trials and s
everal reg
ulatory appr
ovals of
CAR T therapi
es across m
ultiple
indications hav
e continue
d to fuel the inter
est in the m
odality. As
of the date of
this Annua
l Report, ou
r
competitors w
ith the adoptiv
e cell th
erapy landsc
ape, includ
ing CAR Ts,
TCRs and NK
-
based ce
ll therapie
s
include but is
not lim
ited to 2seve
nty bio, Inc
., Adicet Bi
o, Inc,
Adaptimmune T
herapeut
ics plc, Alau
nos
Therap
eutics
Inc., All
ogene Thera
peutics Inc
., AlloVir,
Inc, Arcellx,
Inc., Atar
a Biotherapeu
tics, Inc
., Autolus
Therapeutics pl
c, Beam Therap
eutics Inc.,
Bellicum Pharm
aceuticals,
Inc., Caribou
Biosciences,
Inc.,
CARsgen Ther
apeutics Co.
Ltd., Cell
ectis S.A
., Cellular
Biomedici
ne Group, C
elularity
, Inc., Cent
ury
Therapeutics,
Inc.,
CRISPR Ther
apeutics, I
nc., Edit
as Medicines
, Inc, Fat
e Therapeuti
cs, Inc.
, Gracell
Biotechnolog
ies Inc.
, Immatics Biot
echnologies
GmbH, Imm
unityBio, I
nc., Intellia T
herapeutic
s, Inc.,
Therapeutics,
Inc. (acquir
ed by Celgene C
orporation)
, Kite Pharma,
Inc. (acquir
ed by Gilead Scie
nces, Inc.
),
Legend Biote
ch USA, Inc.
, Lyell Immunoph
arma, Inc.,
Medigene AG,
Mustang Bio, I
nc., Nkart
a
Therapeutics,
Inc., Novar
tis AG, P
oseida Therape
ut
ics, Inc., Precigen, Inc. Precision Biosciences, Inc., Sana
Biotechnology
, Inc., SQZ
Biotech, Inc., TC BioPhar
m Ltd., T
CR2 Therapeutics, I
nc., and Tmunit
y
Within this ext
remely com
petitive spac
e, the clinic
al challenges
faced by a
ll in the field ar
e largely simi
lar
and relate to ensuri
ng target specif
icity, avoidi
ng toxicity
,
including on
-
tar
get, off
tissue effects and ens
urin
g
the therapy is s
ufficiently p
otent to gener
ate durable cl
inical r
esponses.

Our expertise i
n oncology, our
proprietary t
echnologies
, and our different
iated appr
oach to developi
ng CAR
Ts
is providin
g the tools
with which t
o tackle some of
the challen
ges, i
ncluding the
difficult
y of targeti
ng a
broad array of hem
atologica
l and solid tum
ors. Our
solutions inclu
de:
1. Th
e fu
ture is silent: shRNA platfo
rm for all CAR Ts
Within two y
ears, we move
d our first
shRNA
-
bas
ed alloge
neic approac
h from conc
ept to the cl
inic. The
rapidity of pr
ogressing an e
arly
-
stage pr
eclini
cal asset into c
linical test
ing required
a major effor
t ac
ross the
full organiz
ation. Howev
er, this focus
is important
given the potenti
al that shRN
A technolo
gy offers.
In 2021, we validat
ed the use of our
proprietary s
hRNA technology as a n
ovel allogen
eic platfor
m
through
our
base
d allogeneic c
andidat
e, CYAD
-
211
21
1
is a BC
MA CAR T empl
oying a si
ngle
shRNA
t
argeting
the
CD3ζ
component
of
t
he
TCR
com
plex
that
gen
erates
the
allogeneic
CAR
T
cell
This validatio
n was
established
through clini
cal data gen
erated from t
he IMMUNICY
-
1 trial evalu
ating CYA
D
-
211. The IMMU
NCY
-
1 trial w
as key for our c
ompany for
two main reas
ons. Fir
stly, evide
nce in the cli
nic that
the shRNA techno
logy shRNA
-
based allogen
eic CAR Ts wer
e not associate
d with GvHD pr
ovided an
important cl
inical validat
ion of this
approach. S
econdly, to we dem
onstrat
ed
f
irst evidence of
clinical
activity of t
he BCMA CAR T
in patients
with r/
r MM. Our propr
ietary shR
NA technolo
gy will under
pin our
future CAR T product
candida
tes, which incl
udes multiplex
ing shRNA to ge
nerate besp
oke modified CA
R T
candidates f
or specific ca
ncer indicat
ions.
The initial cl
inical validat
ion of the s
hRNA techno
logy has provid
ed an import
ant miles
tone event fo
r the
Company. The
power and versat
ility of the shRN
A platform
, including th
e ability to mul
tiplex an
d modulat
e
the levels of gene expr
ession, contin
ues to support it
s strength, value,
and potential diff
erentiation wit
hin the
allogenic cel
l therapy lan
dscape.
We introduced
our armored CAR
franchise,
known as the shA
RC platfor
m, in 2021, and ar
e focusing our
efforts on IL
-
1
8 for the first
candidat
e, CYAD
-
data
showed a propos
ed mechanis
m
for superior pr
oliferation an
d anti
-
tumor activity with CAR Ts secreting IL
-
18,
as compared t
o CAR T cell
s
1
. which served
as a basis f
or our use of I
L
-
18 for CYAD
-
203, our fir
st armored CA
R
candidate cur
rently in precli
nical trials.
As of the date of this Annual Re
port, CY
AD
-
203 is on trac
k to be the
first IL
-
18 secreting allogen
eic CAR T candi
date. We b
elieve armor
ing CARs alon
gside our s
hRNA
technology of
fers a tremendou
s opportunit
y to drive a series of
differentiated c
andidates f
or both solid tumors
and hematolog
ical malignanc
ies.
We are worki
ng to adva
nce the fie
ld of allogen
eic CAR T
therapy by ex
ploring two
propriet
ary, non
-
edited technol
ogy platforms
to target the TC
R complex. In adopt
ive cell ther
apy, the infus
ion of donor
-
T cells to cancer pat
ients with a di
fferent back
ground than t
hat of the donor m
ay lead to multiple r
eactions.
These reaction
s include the
donor cells
attacking t
he patient
’s healthy tiss
ue, known as
Host
Disease, or
GvHD, as well as t
he rejection of t
he therapy by the patient
’s immune syst
em known as
H
1
Chmielewski, M., & Abken, H. (20
17). CAR T Cells Releasing IL-
18 Convert to T
-Bet
high
low
Effectors that Exhibit
Augmented Activity agains
t Advanced Solid Tumors.
,
21
(11), 3205–3219.
https://doi.org/10.1016/j.celrep.2017.11.063

The TCR, a molec
ule present
on the surface of
T cells, is princip
ally respo
nsible for Gv
HD. At the cent
er of
allogeneic CA
R T therapy, the goa
l is to eliminat
e or blunt the sign
aling of the T
CR through engineer
ing with
a
spec
ific technol
ogy. By reduc
ing the signalin
g of the TCR, t
he engineered allog
eneic CAR T cells
fail to
recognize th
e patient’s he
althy tiss
ue as foreign, wh
ich avoids
GvHD.
Our non
-
gene edited t
echnologi
es target the TCR s
pecifically w
ithout ext
ensive genetic
manipulati
on.
Through the c
o
-
expressio
n of our non
-
g
ene edited tec
hnologies wit
h a specif
ic CAR of i
nterest, we c
an
design cell ther
apy candidat
es intended t
o inhibit the f
unction of
the TCR while al
lowing the T
cells to target
the cancer. We
believe this un
ique strategy
offers a stream
lined approac
h in advancing the
allogeneic CA
R
Our Proprietary Sh
ort Hairpin RNA (sh
RNA) Technology
shRNA is a dy
namic, innov
ative techn
ology that all
ows for the dev
elopment of
allogeneic
CAR Ts throug
h
t
he modulation
of gene express
ion without the nee
d for gene
-
editin
g. We are currently
engineerin
g T cells
for specific
desired fe
atures, inclu
ding the in
hibition of
alloreact
ivity, incr
eased persis
tence an
d enhance
d
antitumor activ
ity or potent
ially improved tol
erability.
We believe that
shRNA offers
us the ability t
o design
and develop next
-
generati
on, non
-
gene edit
ed allogen
eic CAR T therapi
es with any CA
R across a broa
d
shRNA Armored CAR T
(shARC) Platfor
m
In addition, we ar
e developing
an ar
mored CAR franc
hise in conjunctio
n with our shRNA tec
hnology, refer
red
to as
shRNA Armored CAR T platform
, or shARC. The shARC platf
orm uses our s
hRNA
combination wi
th
a CAR
a specific
to enhance
he cel
l therapy
optimize
the potentia
l treatment
for cancer
patients.
Initia
l efforts us
ing the shARC pla
tform have been
centered on th
e use of shRNA t
echnology to knock
down
CD3ζ
for the gener
ation of all
ogeneic CAR
Ts in
combination w
ith the co
-
sion of t
he pro
-
inflam
matory cy
tokine IL
-
Our Propri
etary T cell recept
or Inhibit
ory Molecule (T
IM)
Our novel TIM techno
logy is desig
ned to interfere w
ith the ability of
the
TCR
to
signal
to
prevent
GvHD
.
TI
M
is
a
t
runcated
form
of
the
CD3ζ
component of
the TCR complex wh
ich lacks the cr
itical signali
ng
a NKG2D CAR to r
educe the potenti
al of the TCR t
o induce GvHD.
Following t
he expression of T
IM, the peptide acts
as a competitiv
e
inhibitor to wi
ld
-
type CD3ζ
and is incor
porated int
o the TCR c
omplex.

Celyad Oncol
ogy is buildin
g a diversified pi
peline of next
-
generatio
n allogen
eic and autolog
ous CAR T
CYAD-
101 is an investi
gational,
non
-
allogeneic CA
R T candidate eng
ineered to co
-
the chimeric a
ntigen rece
ptor based on N
KG2D, t
he
novel inhibit
ory pepti
de TIM and a t
runcat
selection mark
e
The product candidate lev
erages
our All
One vector a
pproach wit
h a single
transduction,
avoiding m
ultiple ge
netic modi
fications
and costs assoc
iated with
additional GM
P grade
materials
.
TIM
inhibits
CD3ζ
and
reduces
signali
ng
of
the TCR complex
, which re
duces the pot
ential for
alloSHRINK Phase 1 Tria
l Overview
In December 2
018, we initiat
ed the Phase 1
alloSHRINK t
rial. alloSH
RINK is an open
-
l
abel trial ass
essing
the safety a
nd clinica
l activity
of three consec
utive a
dministrati
ons of CYAD
-
101 every tw
o weeks
administere
d
prec
onditioni
ng chemot
herapy in pat
ients with ref
ractory unres
ectable mCR
C. The
dose
-
escalat
ion segment of
the tria
l evaluated the
administ
rations of CY
AD
-
101 c
oncurrentl
y with FOLF
OX
(combinatio
n of 5
-
fluorourac
il, leucov
orin and oxali
platin) chem
otherapy regi
men at three dos
e levels
(1×10
8
,
3×10
8
, 1×10
9
cells per infus
ion). In Decem
ber 2020,
we
bega
n enrollment
in the expans
ion cohort of th
e
alloSHRINK tr
ial, which ev
aluat
ed three infus
ions of CY
AD
-
101 at th
e recommend
ed dose of 1×
10
9
infusion of CYAD
-
101 concurrent
ly with FOLFI
RI (combinat
ion of 5
-
fluorourac
il, leucovor
in and irinote
can)
precondition
ing chemother
apy for t
he treatment of adv
anced mCRC.

Phase 1 alloSHRINK Cli
nical Trial Dat
a
Initial posit
ive data fr
om the alloSHR
INK trial
were reporte
d both at the S
ociety f
or Immunot
herapy of Canc
er
(SITC) 2019 and Amer
ican Society of
Clinical Oncolo
gy 2020 confere
nces. I
n January 2021, we reporte
d
additional tr
anslatio
nal data f
or the alloSHR
INK trial at
American Soc
iety of Clin
ical Oncolo
gy 2021
A total of 15 patie
nts with rela
psed/refrac
tory mCRC who pr
ogressed af
ter previous
treatment wi
th
oxaliplatin
-
b
ased or ir
inotecan
-
bas
ed chemot
herapies wer
e enrolled i
n the dose
-
esc
alation, alloS
HRINK
Phase 1 trial.
The number of pri
or therapies r
eceived by pati
ents enrolle
d in the trial r
anged from one t
o six
Data from the trial s
howed that CYAD
-
101 following prec
onditioni
ng chemothera
py was observed t
o be
generally we
ll
-
tolerate
d with no GvHD
observed, no
dose
xicities r
eported, no pat
ient
discontinuat
ion due to tr
eatment
-
related adv
erse events
an
d no treatment
-
relate
d adverse eve
nts greater
than Grade 3. Resul
ts also show
ed two patie
nts achieved a
partial respo
nse (PR) accor
ding to RECI
ST 1.1
criteria, incl
uding one pat
ient with a KRA
S
-
Nine patients
achieved stabl
e disease (SD),
with seven pat
ients demons
trating diseas
e stabilizat
ion lasting
more than or equa
l to three mont
hs of durati
on, with a dise
ase control r
ate of 73%.
Median progre
ssion free survi
val (mPFS
) for this segment of
the trial was 3.
9 months, and medi
an overal
l
survival (mOS
) was 10.6 months.
No correlation was
observed betwe
en clinical res
ponses and the degr
ee
of human leukoc
yte antigen (
HLA) matchin
g between
pat
ients and CYAD
-
101 donor cell
s, indicatin
g that
CYAD-
101 may be able t
o be used in a broad pat
ient popul
ation regar
dless of the HLA hapl
otype.
Data from the allo
SHRINK tri
al also showed
a tumor burden dec
rease in eig
ht out of 15 evaluab
le patient
s,
including six
of nine p
atients at
dose level 3. C
linical act
ivity was obs
erved ac
ross all dos
e levels. T
here was
no obvious cor
relation betw
een respons
e, dose
-
levels
nor baseline ch
aracteris
tics.

Of four patient
s treated at
the highest d
ose level of
1×10
9
analysis, t
hree patie
nts who
achieved eith
er a confirm
ed
PR or SD also showed
Cytokine mod
ulation was
also obser
ved after
the first an
d second infus
ions of CYA
D
-
101 i
n the patient
who
achieved a con
firmed PR from
the highest do
se level.
All 15 patient
s from the dos
e
-
escalati
on segment of
the alloSHRI
NK trial we
re dosed from
a single cell b
ank
of CYAD
-
101 that was ge
nerated in a
dvance f
rom two ma
nufacturing r
uns each us
ing a frac
tion of an
apheresis from
a single healt
hy donor.
Preliminary
data f
rom the dos
e expansion c
ohort eval
uating CYAD
-
101 (1×109 ce
lls per inf
usion) foll
owing
FOLFIRI (
combination of 5
-
fl
uorouracil,
leucovori
n and irinoteca
n) precondit
ioning che
motherapy s
howed
CYAD-
-
tolerat
ed with no dose lim
iting toxicit
ies
or evidenc
e of GvHD. Over
all, nine
out of ten eval
uable mCRC p
atients showe
d stable dis
ease at fir
st tumor assessme
nt. Data also s
howed
shorter persist
ence of CYAD
-
101 cells obs
erved after FOLF
IRI precondit
ioning as compare
d to FOLFOX
In
2021, based
on improved c
ell kinetic d
ata and clinic
al activi
ty data from t
he alloSHRINK
dose
-
segment of CY
AD
-
101 foll
owing FOLFO
X preconditio
ning, the Compa
ny submitt
ed a protocol
amendmen
t
to regulatory
agencies t
o modify the P
hase 1b KEY
NOTE
-
B79 t
rial to incor
porate F
OLFOX as
precondition
ing chemother
apy.
In September 202
0, we announc
ed a clini
cal trial coll
aboration wit
h MSD, a tr
adename of Merc
k. The
KEYNOTE-
B79 trial will eval
uate CYAD
-
101 f
ollowing FO
LFOX preconditi
oning chemoth
erapy, wit
h Merck’s
anti
-
PD1 therapy, KEYTRUDA® (pembrolizumab), in refractory mCRC patients with MSS /
pMMR disease.
In December
2021, we ann
ounced the f
irst pati
ent was dos
ed in the KE
YNOTE
-
B79 trial.
In Februar
y 2022,
we announced our dec
ision to volu
ntarily pau
se the KEYNOT
E
-
B79 trial to i
nvestigat
e reports of
two fatalitie
s
that presented w
ith similar pul
monary findin
gs and evaluat
e any similar ev
ents in additi
onal patients
treated
on study.
On March 1,
2022, we were inform
ed via
-
email co
mmunication f
rom the FDA that t
he KEYNOTE
-
B79 trial has b
een placed on c
linical hold d
ue to insuffic
ient infor
mation to ass
ess risk to st
udy subjects.

CYAD-
211 is an inv
estigation
al shRNA
-
CAR T candidat
e for the tr
eatment of rel
apsed or
refractory multiple myeloma (r/r MM). CYAD
engineered t
o co
-
express a BCMA chimeric antigen
receptor and a singl
e shRNA hairpi
n which interf
eres
with
the
expres
sion
of
the
CD3ζ
component
of
the
T
CR
In November 2
020, we initi
ated the dose
-
es
calation Ph
ase 1 IMMU
NICY
-
1 trial ev
aluatin
g CYAD
-
211 for t
he
escalation tr
ial that wil
l evaluat
e the safety
and
clinical
activity of
a single infus
ion of CYAD
following prec
onditioni
ng chemother
apy
cyclophospha
mide (300 mg/
m²) and fludar
abine
(30 mg/m²) in pat
ients with r/
r MM. The trial
evaluates mult
iple dose leve
ls of CYAD
-
3x10
7
, 1x10
8
8
Preliminary data from the IMMUNICY
showed a favor
able tolerab
ility prof
ile with n
o
DLTs, no GvHD an
d no CAR
-T-
Preliminary c
ell kinet
ic data s
howed all pati
ents had d
etectable C
YAD
-
211 c
ells in the
peripheral
blood,
although engr
aftment was
short lasting.
This suggests
expansion a
nd persistenc
e of cells might
be more
dependent on t
he depth and p
eriod of the ly
mphodepleti
on induced
by the precond
itioning r
egimen, w
hich
calls for furt
her explorat
ion of lympho
depletion
Initial clinic
al activi
ty from the dose
-
es
calatio
n segment of the I
MMUNICY
1 trial showed
with
in
g
partial respo
nse (PR), one i
n each dose
-
lev
el, while eig
ht patients ha
d stable
disease (SD).
One patient
with SD
of
4.5 months
duration
showed evid
ence of reduct
ion in size of
trial, the next
segment of t
he
study will ev
aluate enha
nced
lymphodepl
eting regim
ens with
persistence and pot
entiall
y
maximize the c
linical benefit
of

cohorts evalu
ating enhance
d lymphodep
letion is
ongoing and ad
ditional d
ata from the tr
ial are expecte
d in
CYAD-
02 is an investigat
ional CAR T
therapy that
uses
an All
-
in
-
T cells to express
both the NKG2D
chimeric antige
n receptor and s
hRNA technol
ogy to knockd
own the
expression of
NKG2D ligan
ds MICA and MI
CB on the CAR T c
ells.
with a single shRNA le
ad to
expression (F
igure A) on T
In November 2019, we ini
tiated t
he Phase 1 dose
-
escal
ation CYCLE
-
1 t
rial that evaluat
ed the safety and
clinical activ
ity of a sin
gle infusion
of CYAD
-
02 f
ollowing pr
econdition
ing chemot
herapy wit
h
cyclophospha
mide and fluda
rabine for the treat
ment of relapse
d or refractor
y (r/r) acute my
eloid leukem
ia
(AML) and myelodysplastic syndromes (MDS).
In December 2
021, we report
ed data from t
he Phase 1 CYCLE
-
1 trial at t
he American S
ociety of
Hematolog
y
annual meetin
g, which over
all showed a g
ood tolerab
ility prof
ile of CYAD
02 followin
g CyFlu precon
ditionin
g.
Data from the tr
ial showed tha
t a single shRN
A can target t
wo independent
genes (MICA
/MICB) t
o enhance
the phenotype of
the CAR T cells. In additi
on, the dual kn
ockdown show
ed a positive cont
ribution to the
initial clinical
activity of CYAD
-
02 as we
ll as a trend towar
ds increased en
graftmen
t and persistenc
e
compared to th
e first
-
, aut
ologous NKG
2D receptor CA
R T.
1.6
Licensing and Collaboration Agreements
Background
In January 20
15, we entered i
nto an agreement
with Celdar
a Medical, LLC,
or Celdara in w
hich we
purchased all out
standing mem
bership inte
rests of OnCyte,
LLC, or OnCyte. In connec
tion with this
transaction,
we entered into an ass
et purchase agreem
ent to which Celdar
a sold to OnCyt
e certain data,
protocols, r
egulatory
document
s and intell
ectual pr
operty, i
ncluding th
e rights and
obligatio
ns under
two
license agreem
ents between
OnCyte and Th
e Trustees of
Dartmouth Coll
ege, or Dartmo
uth, related to our
In March 2018,
we dissolved t
he affairs of
our wholly own
ed subsidiary
OnCyte. A
s a result of the di
ssolution
of OnCyte, all t
he assets and l
iabilities
of OnCyte were f
ully distr
ibuted to us
inc
luding our li
cense agreem
ent

Amended Asse
t Purchase Agr
eement
In August 2017, we ent
ered into an amend
ment to the asset
purchase agre
ement describe
d above. In
connection wi
th the amendm
ent, the follow
ing payments
were made t
o Celdara: (i) an a
mount in cash equ
al
to $10.5 mill
ion,
(ii)
newly issued sh
ares of Celya
d valued at
$12.5 mill
ion, (iii) an am
ount in cas
h equal t
o
$6.0 million i
n full satisfac
tion of any p
ayments owed t
o Celdara in c
onnecti
on with a clinic
al mileston
e related
to our CAR
2 pro
duct candidat
e, (iv) a
n amount in c
ash equal to
$0.6 milli
on in full s
atisfaction
of any
payments owed to Celdar
a in connection wi
th our licens
e agreement wit
h Novartis I
nternationa
l
Pharmaceutic
al Ltd., and (v)
an amount i
n cash equal t
o $0.9 milli
on in full sat
isfaction
of any pa
yments
owed to Celdar
a in connecti
on with our
license agre
ement with Ono
Pharmaceut
ical Co., Lt
d.
Under the amended as
set purchas
e agreement
, we are obligate
d to make certain d
evelopment
-
milestone pay
ments to Celdar
a up to $40.0 m
illion, certai
n development
-
base
d milestone paym
ents up t
o
$36.5 million and cer
tain sales
-
based milest
one payments up to $156.
0 million. We ar
e required to make
tiered single
digit royalty
payments to Celd
ara in connecti
on with the sales
of CAR
-
T products
, subject to
reduction in co
untries in which t
here is no patent cover
age for the applica
ble product or i
n the event Celyad
is required to sec
ure license
s from third par
ties to commer
cialize the app
licable pr
oduct. We ar
e also
required to pay
Celdara a per
centage of s
ublicense i
ncome, inclu
ding royalt
y payment
s, for each s
ublicens
e
ranging from
the mid
-
si
ngle digits
to the mid
twenties, d
epending
on which
of a specifie
d list of c
linical a
nd
regulatory mile
stones the app
licable pro
duct has achiev
ed at the time t
he sublicense is execut
ed. We are
required to pay
Celdara a si
ngle
-
digit p
ercentage
of any resear
ch and dev
elopment fu
nding receive
d by us,
not to exceed
$7.5 million f
or each prod
uct grou
p. We can opt out
of the dev
elopment o
f any product
if the
data does not meet
the sci
entific c
riteria of s
uccess. We ma
y also opt out
of developme
nt of any produc
t for
any other reas
on upon paym
ent of a termin
ation fee of $2.
0 million to Ce
ldara.
The Trustees o
f Dartmouth Co
llege
(“Dartmouth”)
As described a
bove, as a result
of our acqui
sition of all of t
he outstandi
ng membership i
nterests of
OnCyte
and the asset purch
ase agreement
among us, Celdar
a and OnCyte,
OnCyte became our who
lly
subsidiary and
acquired cert
ain data, protoc
ols, regulator
y documents an
d intellectual p
roper
ty, including
the rights and obli
gations und
er two license agr
eements bet
ween OnCyte and Dar
tmouth.
The first of thes
e
two license ag
reements c
oncerned pat
ent rights r
elated, in
part, to metho
ds for treat
ing cancer
involving
chimeric NK a
nd NKP30 rec
eptor target
ed therapeuti
cs and T cell r
eceptor
-
def
icient T c
ell compositi
ons in
treating tum
or, infectio
n, GVHD, tr
ansplant and r
adiation sic
kness, or the
CAR
-
T Lice
nse, and th
e second
of these two lic
ense agreem
ents concer
ned patent right
s related, i
n part, t
o
H6 ant
ibody, fus
ion
proteins and m
ethods of using
the same, or the B
7H6 Licens
e.
In August 2017,
we and Dartmouth ent
ered into an amen
dment agre
ement in order t
o combine our rig
hts
under B7H6 Agreem
ent with our right
s under the CAR
-
T License, res
ulting in the t
ermination of t
he B7H6
License, and in or
der to make certain other
changes to t
he agreement. I
n connection wit
h the amendment,
we paid Dartm
outh a non
-
refunda
ble, non
-
cr
editable amen
dment fee in th
e amount of $2.0 m
illion in 2017.
Under the amend
ed license
agreement,
Dartmouth gra
nted us an ex
clusive,
worldwid
e, royalty
license to cert
ain know
-
h
ow and patent ri
ghts to mak
e, have made, us
e, offer for
sale, sell, imp
ort and
commercializ
e any product
or process for human ther
apeutics,
the manufacture,
use or sale of which,
is
covered by such pat
ent rights or any
platform product.
Dartmouth reser
ves the right t
o use the license
d
patent rights
and license
d know
-
how, in t
he same field,
for education a
nd research p
urposes only.
The patent
rig
hts includ
ed in the amend
ed license agr
eement also i
nclude the pat
ents previousl
y covered by the B
7H6
License. In cons
ideration for t
he rights grante
d to us under the amend
ed license agre
ement, we ar
e required
to pay to Dartmout
h an annual lice
nse fee as well as a low
single
-
digit
royalty bas
ed on annual net s
ales of
the licensed p
roducts by
us, with certa
in minimum
net sales obl
igations
beginning
April 30, 2024
and
continuing f
or each year of sales t
hereafter.
Under the amended lic
ense agreement
, in lieu of royalt
ies
previously pay
able on sales by subli
censees, Celya
d is required to pay Dart
mouth a percentage o
f
sublicense inc
ome, includi
ng royalty pay
ments,
(i) for each produc
t sublicens
e ranging from
the mid
digits to low
-
si
ngle digits, de
pending on whic
h of a specified list of
clinical and regul
atory miles
tones the
applicable pr
oduct has achi
eved at the time t
he sublicense i
s executed and
(ii) for each pl
atform sublic
ense
in the mid
-
sin
gle digits.
Additionally
, the agreeme
nt require
s that we explo
it the lice
nsed produc
ts, and we

have agreed t
o meet cert
ain developm
ental and r
egulatory
milestones
. Upon succ
essful compl
etion of su
ch
milestones,
Celyad is obligat
ed to pay to Dartmout
h certain clinic
al and regulator
y milesto
ne payments up
to an aggregat
e amount of
$1.5 milli
on and a comm
ercial miles
tone payme
nt in the am
ount of $4.0
million.
We are respon
sible for all
expenses in co
nnection wit
h the prepar
ation, fil
ing, prosec
ution and maint
enanc
e
of the patents
covered under
the agreeme
nt.
As further amende
d in December 202
1, this agreem
ent allows Dar
tmouth to term
inate the amende
d license
after April 30, 2
026, extende
d from the prior d
ate of April
0, 2024, in the ev
ent that Cely
ad fails to m
eet the
specified mini
mum net sales oblig
ations for
any year (USD 10 milli
on during f
irst year of sales
, USD 40
million during t
he second year of
sales and USD 100 mill
ion during the t
hird year of sales and ever
y year of
sales thereaft
er), unless
Celyad pays to Dar
tmouth the roy
alty Celyad wo
uld otherwis
e be obligate
d to pay
had Celyad me
t such minimum
net sales obligati
on. Dartmo
uth may also te
rminate the lic
ense if Celya
d fails
to meet a milestone wi
thin the s
pecified time per
iod, unles
s Celyad pays
the correspondi
ng mileston
e
payment.
In connecti
on with the Dec
ember 2021 ame
ndment, we a
greed to cer
tain protect
ive provisi
ons of
any sublicense
s and paid Dar
tmouth a non
-
r
efundable,
non
-
c
reditable am
endment fee a
nd an additi
onal
non
-
refundab
le, non
-
credi
table sublicens
e fee to be pa
id on an annual bas
is.
st
, 2017, we enter
ed into a non
-
ex
clusive lic
ense agreement
with Novar
tis Internat
ional AG
, or
Novartis, reg
arding U.S
. patents rel
ated to allogen
eic CAR
-
T c
ells. The agreem
ent includ
es our intellect
ual
property right
s under U.S. Patent No.
9,181,527. T
his agreement
is related to two undisc
losed target
s
currently unde
r developme
nt by Novartis.
Under the term
s of the agreement
, we received an upf
ront
payment of $4.0 m
illion and are el
igible to re
ceive additi
onal milesto
ne payments in ag
gregate amo
unts of
u
p to $92.0 mill
ion. In addit
ion, we are
eligible t
o receive roy
alties base
d on net sal
es of the lice
nsed targ
et
associated pr
oducts at per
centages in t
he single dig
its. We ret
ain all rights
to grant further
licenses to t
hird
parties for the
use of allogene
In April and Jun
e 2018, we sig
ned two rese
arch and dev
elopment col
laborat
ion and licens
e agreements w
ith
Horizon Disc
overy Group
plc, or Hori
zon, to ev
aluate the ut
ility of Hor
izon’s SMA
RT vector shRNA
reagent
s
to reduce expr
ession of on
e or more def
ined tar
gets in connec
tion with t
he developm
ent of our pro
duct
candidates.
The first agr
eement was foc
used on tar
gets rela
ted to our aut
ologous CAR
-
T candidat
e, CYAD
-
02. The second agreem
ent was focused on t
argets relate
d to our allogeni
c CAR
-
T product
candidate C
YAD
-
211 and one pre
-
cl
inical allog
enic product
candidate n
ot yet publicly
announced,
called CYAD
-
In December
2018, we ex
ercised our
option t
o convert t
he second agr
eement int
o an exc
lusive licens
e
agreement, i
n connectio
n with which w
e paid Horiz
o
front paym
ent of $1 m
illion. I
n September 2
019,
we exercised o
ur option to c
onvert t
he first agreem
ent into
an exclusiv
e license agre
ement, in co
nnection
with which we
have paid Hor
izon an up
-
fro
nt payment of
$0.1 millio
n and an addit
ional mil
estone of $0.
1
million for th
e first IND f
iled by us for CYA
D
-
02. In Septem
ber 2020, we
paid an addit
ional milesto
ne of $0
.2
million for the f
irst IN
D filed by us for
CYAD
-
211.
Under these exclus
ive license agr
eements combi
ned, Horizon is
eligible t
o receive
additio
nal milesto
ne
payments in
developme
nt, regulat
ory and com
mercial mil
estone paym
ents, in a
ddition t
o low single digi
t
royalties on n
et sales, subj
ect to customar
y reductions.
In December 2
020, Horizon D
iscovery was a
cquired by Per
kinElmer, I
nc. (Hor
In 2021, Horizo
n/PKI infor
med us they beli
eve we are in ma
terial breach
of these agr
eements as a resu
lt of
certain discl
osures we h
ave made in c
onnection w
ith our
obligations
as a public
ly traded com
pany in t
he
United States
and Belgium,
although th
ey have not
formally del
ivered to us
a notice of m
aterial breac
h or
termination.
We believe any such asser
tion of mat
erial breach would be w
ithout merit and
we would expect
to vigorously d
efend any suc
h notice of mat
erial breac
h. Any dispute u
nder thes
e agreements
would b
e
subject to arbi
tration i
n The Hague under
the Internat
ional Chamb
er of Commerc
e Rules. W
e are currently

in discussio
ns with Horizon a
bout possible a
mendments t
o these agreeme
nts in connection wit
h which we
would retain f
reedom to oper
ate under the i
n
-
licensed pate
nts.
Of note, we h
ave filed pat
ent applicat
ions which, i
f issued,
would cov
er other aspec
ts of the prod
uct
candidates des
cribed abov
e as well as pro
ducts devel
oped by third par
ties that deploy
similar tec
hnology
and targets.
These patent a
pplicati
ons encompass
the downreg
ulation of one or
more of the t
argets cove
red
under the Horiz
on/PKI agreem
ents, the use of shRN
A to downregulat
e such targets
in immune cells a
nd the
combination of
shRNAs with a chimeric
antigen recept
or in immune c
ells. We are also de
veloping a sec
ond
generation sh
RNA platfor
m that does not
incorporat
e any of t
he Horizon Disc
overy/Perk
in Elmer, I
nc.
technology des
cribed abov
e.
Our lead allog
eneic CAR T pr
oduct candidat
e, CYAD
-
101,
does not incorp
orate any of
the Horizon
Discovery/P
erkin Elmer,
Inc. techn
ology descr
ibed above.
In September 2020,
we entered int
o a clinical tr
ial collaborat
ion agreeme
nt and subseque
nt agreement
s with
MSD Internati
onal GmbH,
or MSD, a subs
idiary of M
erck & Co.,
Inc. The agreem
ents rela
te to the Phas
e 1b
KEYNOTE-
B79 clinical tr
ial, which will ev
aluate our inv
estigation
al non
-
gene edit
ed allogeneic
CAR
-
T
candidate, C
YAD
-
101, f
ollowing
preconditi
oning chemot
herapy,
with MSD’s a
nti-PD-1 th
erapy,
KEYTRUDA
®
(pembroli
zu
mab). T
he trial will
enroll refrac
tory metas
tatic colorect
al cancer (
mCRC) patien
ts
with microsatellite stable (MSS) / mismatc
h
-
rep
air proficient
(pMMR) diseas
e, with the initial goa
l of
determining t
he safety and to
lerabilit
y of the combinat
ion therapy
.
T
he trial be
gan enroll
ment in the fou
rth
In February 2022,
we announc
ed our decision t
o voluntaril
y pause the KEYNO
TE
-
B79 t
rial to investi
gate
reports of two
fataliti
es that pr
esented wit
h similar pu
lmonary f
indings and eva
luate any
similar
ev
ents in
additional p
atients tr
eated on study.
On March 1, 2022,
the Company
was inform
ed via
-
em
ail communic
ation
from the FDA that
the KEYNOT
E
-
B79 trial ha
s been placed
on clinical ho
ld due to insuf
ficient inf
ormation
to
assess risk to study subjects.
On May 8, 2018, we ent
ered into an e
xclusive lice
nse agreeme
nt with Meso
blast, an Aust
ralian
biotechnolo
gy company
, to develop
and comm
ercialize ou
r intellect
ual property
rights re
lating to C
-
an intra
-
myoca
rdial injecti
on catheter
, related
to our former cardi
ovascular
business, f
or which Mesob
has paid to Celyad an u
pfront f
ee of
$
1,000,0
00. In additi
on to the upfront
fee, Celyad ma
y be eligible u
p to
$
and commercial mi
lestone paym
ents payab
le in cash or, for
certain
milestones,
in Mesoblast
shares.
On January 17,
2022, we enter
ed into an amendm
ent with Meso
blast to conv
ert the licens
e into non
-
exclusive, t
o remove the terminati
on fee of
$
2,500,0
00 from Mesobl
ast and to extend c
ertain payme
nts
milestones.
In considerati
on for this
amendment,
Mesoblast
has agreed t
o pay
to Cely
ad
Mesoblast ordi
nary shares.
On December
2, 2021, we ent
ered into a Sub
scriptio
n Agreement (
the “
S
ubscription Agreement”) with CFIP
CLYD LLC (“Fortr
ess”), an affiliate of
Fortress I
nvestment Group, pur
suant to which we agreed t
o sell to
Fortress,
in an unregistere
d offering,
an aggregat
e of 6,500,
000 ordinary sh
ares at a purch
ase price of $
5.00
per share (the “Priv
ate Placement”
). The Private Plac
ement clos
ed on December 8, 2021 and r
esulted in
the receipt of gros
s proceeds of approx
imately
$32,500,000. In c
onnection wit
h the Subscript
ion Agreement
,
we also entered i
nto a Shareho
lders’ Right
s Agreement (
the “Sharehold
ers’ Rights
Agreement”
) with
Fortress,
pursuant to which For
tress (i) has t
he right to select
two individuals
to be, at Fort
ress’s option,
either member
s of our Board of D
irectors (the “Boar
d”) or
obs
ervers of the Board,
so long a
s

Fortress cont
inues to hold at least 10% of
our outstanding or
dinary shares;
and (ii) receiv
ed a right of first
offer on any new indebt
edness
to be incurred by us and a
pro rata right of f
irst refusal on any ne
w equity
securities t
o be issued by us, as
we
ll as customary registration rights.
We also granted Fortress
certain
protective pr
ovisions re
lated to our int
ellectual
property portf
olio.
1.7
Our Manufacturing Capabilities
Our establish
ed in
-
house pro
cess developm
ent and manufact
uring expert
ise enables us t
o seamlessly an
d
efficiently re
produce mat
erials t
o advance our cell th
erapy candidat
es into early
-
stage clinica
l trials. We
control our manuf
acturing thr
ough our 11,0
00 square foot
GMP
-
com
pliant manuf
acturing faci
lity, locat
ed in
Mont
-
Saint
-
G
uibert, Belg
ium. Our
facility’s st
aff have b
een instrum
ental in the pr
eparation
of multiple I
ND
and Clinical Tr
ial Applicatio
ns (CTAs) f
ilings, through t
he completion of do
zens of produc
tion runs, as we
ll
as in impleme
nting mul
tiple chemi
stry, manuf
acturing,
and contr
ol (CMC) am
endments as
sociated wit
h our
CAR T progra
ms. We have
the flexibil
ity to manuf
acture both
our allo
geneic and au
tologous CA
R T
candidates wit
hin our GM
P facility and we ar
e equipped to s
upport the pr
oduction of
all doses t
o deliver our
clinical de
velo
pment plan. I
n addition, lev
eraging o
ur All
One vector
approach for
CAR T product
ion
means that we can us
e a consistent manuf
acturing proc
ess across
all product candi
dates. W
e also plan to
expand our manuf
acturing c
apabilities t
hrough potent
ial partners
hips with c
ontract developm
ent an
d
manufacturing or
ganizations
.
1.8
Our shareholding structure
1.9
Post bal
a
nce
sheet events
On January 17, 2022,
the Company
enter
ed into an amend
ment with Mesobl
ast to convert
the license int
o
non
-
exclusiv
e
whereby the Compa
ny agreed
, (a)
to
s
ettle $2,500,000 of r
eceivable as of Decem
ber 31, 202
1
with $1,500,
000 and; (b)
extend cert
ain mile
stone payme
nts. The cons
ideration
of $1,500,
000 was agre
ed
to be paid by
Mesoblast
in Mesob
last ordina
ry shares
and the d
ifferenc
e $1,000,000
will be rec
orded
in the
income statem
ent in 2022
.
On February 2
8, 2022, the
announced
its decisi
on to volunt
ar
il
y paus
e
B79 trial evalu
ating CYAD
-
10
1 administere
d concurre
ntly with FOLF
OX chemotherapy
followed by
anti
-PD-
1 therapy
, KEYTRU
DA® (pembroli
zumab) in
patients wit
h refra
ctory metast
atic color
ec
following rep
orts of two f
atalities that
presented with s
imilar pulm
onary findi
ngs. The
is
current
ly
investigatin
g these rep
orts and eval
uating any sim
ilar event
s in addition
al patients t
reated on study
.
On
March 1, 2022,
the Company
was informed v
ia
-
email c
ommunication f
rom the FDA t
hat the KEY
NOTE
trial has been pl
aced on clin
ical hold due t
o insuffici
ent informat
ion to assess r
isk to study subjec
ts.
Biological
Manufacturing
Inc (USA)

There were no ot
her subsequ
ent events that
occur betwe
en 202
1
end and the d
ate when the fina
ncial
statements hav
e been authori
zed by the Boa
rd for issue.
The Company’s
actual capita
l expendit
ures excludin
g impact
of recogniti
on of right
-
use assets f
or the
years ended D
ecember 31, 2
020 and 2021
amou
nted to €0.2 mil
lion and
millio
n, respectiv
ely. Thes
e
capital expendi
tures primari
ly consiste
d of the acquisit
ion of laboratory
equipment
and industrial tools
, the
refurbishment
of research and devel
opment
laboratories a
nd leasehold im
provements of
corporate of
fices
located in Bel
gium. The Comp
any expects i
ts capital expe
nditures t
o increase in abs
olute ter
ms in the near
term as the Com
pany contin
ues to advance i
ts research an
d development
programs.
1.11
Financial review of the year ending December
31, 202
1
The table below s
ets forth the Group’s
consolidated i
ncome stat
ement, ending up wit
h a €
million loss
for the year ended 3
1 December
202
1
, and com
parative inf
ormation for
the year 20
Research and Development expenses
20 773
1 522
)
General & Administrative expenses
Change in fair value of contingent consideration
9 228
Operating Loss
2
Basic and diluted loss per share (in
€)
The Company’s
license and coll
aboratio
n agreements
have generated n
o revenue in 202
1
and 202
0
.
The Research
and Developm
ent expenses
include pr
e
-
clinical, m
anufactu
ring, clinica
l, quality,
intellect
ual
property an
d regulatory
expenses a
nd other res
earch and dev
elopment e
xpenses, wh
ich are ag
gregate
d
and presented
as a single line
in the Compan
y’s consolid
ated financ
ial statement
s.
2
The
operating loss arises
from the Company’s l
oss for the period before deducti
on of financial incom
e, financial expenses
and income taxes. The purpose of this m
easure by Management is to identify the Company’s results
in connection with
its operating act
ivities.

Bottom
-
line,
the R&D exp
enses show a y
ear
-
over
-
Company
’s R&D expenses is primarily driven by
•
em
ployee expenses m
ainly related t
o movement of em
ployees throu
gh the year
ended Decemb
er 31, 2021 to supp
ort the Group
’s preclinic
al and clinical
programs
•
The increase
of preclinica
l activities
associat
ed with the CY
AD
NKG2D) and ot
her next
-
gener
ation CAR T
candidates, c
ompensated by
;
•
The decrease of pr
ocess developm
ent and clinic
al developm
ent after the Group’
s decision in Q
4
2020 to discont
inue the develo
pment of firs
t
-
generati
on, autolog
ous CAR T candidat
e CYAD
-
•
The decrease of
process de
velopment ass
ociated to t
he
transition fr
om preclinic
al to clinic
al
development o
f the CYAD
-
21
1 program; and
•
The decreas
e of the expe
nses associ
ated wit
h the share
related to the war
rants plan
offered to
and d
irec
tors.
The key projec
ts driving the r
esearch an
d developme
nt expenses i
n 202
1
•
The clinical studies
conducted
on the Company
’s Product Cand
idates;
•
The preclinic
al studies c
onducted on the
Company’s
CAR T produc
t candidates
in allogene
ic
settings for so
lid tumors a
nd the develop
ment of the Comp
any’s alloge
neic platfo
rm, which
evaluates mult
iple non
-
gen
e editing tec
hnologies.
General and
A
dminist
rative ex
penses were €9.
million in
202
as c
ompared to €9.
million in 20
increase of €
0
.6
m
illion. This inc
rease prim
arily relates
to higher ins
urances cost
s
principally)
and consult
ing fees relat
ed to legal,
recruitment
and capital ra
ise activit
ies have bee
n partially
compensate
d by
decrease of
the expenses ass
ociated wit
h the share
based payment
s (non
expenses) rel
ated to the warra
nts plan offere
d to the Group’s
employees, managers an
d directors
The fair value adjus
tment (€
m
illion) relati
ng to the continge
nt consider
ation and other
financial lia
as of Decembe
r 31, 202
mainly
driven b
y
(see note 5.2
8):
•
The update of the assum
ptions ass
ociated with t
he timing of the potential c
ommercializat
ion of the
Group’s allo
genic CYAD
-
101
CAR T progra
m for mCRC which h
as been delay
ed by one year;
•
The update of the as
sumptions associ
ated with t
he timing, develo
pment and the
potential
commercializ
ation of the Gr
oup’s auto
logous CYAD
-
02 CAR T program for r/r AML/MDS to reflect
the future devel
opment of the progr
am through pot
ential pa
rtnership, whic
h
has been del
ayed by
•
The update in W
ACC used for f
air value measurem
ent purposes
at December
31, 2021;
•
The revaluatio
n of the U.S. dol
lar against t
he Euro; an
d
•
The updated ass
umptions on
Probability of
Success (PoS)
associated wi
th the Group’s CA
R T
As of December
31, 2020, the cha
nge in fair val
ue of the contin
gent consider
ation and other
financi
al
liabilities w
as mainly dr
iven by update
d assumptio
ns associat
ed with the t
iming of t
he potential
commercializ
ation of
Group’
s autologo
us CYAD
-
02 CA
R T
which
had been
The Company’s
other income
(see note 5.
28)
is associated
with grants rec
eived from t
he Walloon Region
mainly in the fo
rm of recover
able cash adv
ances (RCAs)
and R&D tax cred
it income:

•
Grant income (
RCAs): additi
onal grant i
ncome has been rec
ognized in 2021 o
n grants in t
he form
of recoverable
cash advanc
es (RCAs) for c
ontracts num
bered 8087,
8088, 8212, 843
6 and
1910028. Acco
rding to IF
RS standards
, the Comp
any has recog
nized gra
nt income for
the
period
amounting t
o €2.7 millio
n and a liabi
lity com
ponent of €1.
6 million i
s accounted f
or as a
financial
liability (s
ee disclosur
e notes
5.16 and 5.19
.2). The incr
ease compar
ed to December
31, 2020 i
s
mainly associa
ted with additi
onal grant inco
me recogn
ized on new convent
ions signed duri
ng the
last quarter
of 2020 (contrac
ts number
ed 8212 and 843
6) and on conv
ention num
bered 191002
8,
partly compe
nsated by t
he decreas
e on grant inc
ome recogn
ized on co
nvention
associated t
o
autologous pro
grams (contr
act numbere
d 7685, 8087 and 8
088);
•
Grant income (O
thers): additi
onal grant inco
me has been recog
nized in 2021 on gr
ants receive
d
from the Feder
al Belgian Ins
titute f
or Health Insur
ance Inami (
€0.3 million)
and from the r
egional
government (c
ontracts num
bered 806
6 and 8516 for
€1.1 million)
, not refer
ring to RCAs
and not
subject to reim
bursement
. The increase
compare
d to December
31, 2020 is m
ainly due t
o grant
income recogni
zed on new convent
ion signed in t
he last quarter
of 2021 with the r
egional
government (c
ontract numb
ered 8516);
•
the remeasure
ment income o
n the recover
able cash adv
ances (RCAs)
of €0.9 millio
n for the yea
r
2020, which w
as mainly re
lated to th
e Group decisi
on to updat
e assumpti
ons associ
ated with th
e
timing of the potent
ial commerci
alization of
the Group’s aut
ologous AML/
MDS CAR T program,
while the rem
easurement
on the recover
able cash a
dvances (RC
As) is an exp
ense for the yea
r
ended Decemb
er 31, 2021; and
•
with respect to R&
D tax credit,
the current year inc
ome is predic
ated on a R&D tax credit
(€0.7 milli
on), which has
been update
d taking into
account all i
nformati
on available at
this date a
nd
is in line with p
revious year.
For the year ended D
ecember
31,
, othe
r expenses m
ainly refer t
o
(see note 5.
28):
•
the remeasure
ment income o
n
the recovera
ble cash advan
ces (RCAs) of
€0.3 millio
n for the yea
r
2021, which is
mainly relate
d to the time accr
etion (which ref
lects the dev
elopment
of the Group’s
product candi
dates using CA
R T technolog
y and their pro
gress towar
ds market approv
al in bo
th
autologous an
d allogeneic pr
ograms) a
nd the revaluat
ion of the U
.S. dollar agai
nst the Euro;
and
•
the other exp
enses are mai
nly associ
ated with t
he amendm
ent fees on lic
ense agreem
ent with
Dartmouth si
gned in Decemb
er 2021 for €1.
1 million.
Therefore, at
year
-
end 2
02
1
, the loss f
rom operat
ions amou
nted to €
26.4
million versus €
17.0
20
for the reasons
stated abov
e.
Financial res
ults refer
mainly to inter
est on financ
e leases
(
see note 5.31)
.
As a result of
the foregoi
ng, the net
loss for the f
inancial y
ear 202
1
amou
nts to €
mill
ion, compar
ed to a
net loss of €
million for t
he prior year f
or the reasons st
ated above.
1.11.2.
Analysis of t
he consolid
ated statement
The table belo
w sets fort
h the Group’s con
solidated st
atements of
financial pos
ition for
the year ende
d
December 31,
202
1
, and compar
ative inform
ation as at D
ecember 31,
20
Goodwill and Intangible assets
Property, Plant and Equipment
4 119
Non
-
current Trade and Other receivables
Non
-
current Grant receivables

Trade and Other Receivables
Current Grant receivables
Cash and cash equivalents
Capital reduction reserve
Accumulated deficit
(308 997)
Recovera
ble Cash adva
nces (RCAs)
Contingent consideration payable and other financi
al l
iabilities
Recovera
ble Cash adva
nces (RCAs)
Other current liabilities
5 614
TOTAL EQUITY AND LIABILIT
IES
(1)
For information on voluntary change in
accounting policy, see note 5.2.16.
Intangible as
sets net book v
alue, as descri
bed in note 5.
6, mainly ref
ers to:
•
The Company’s
IPR&D assets
related to its oncol
ogical progr
ams acquir
ed in 2015 throug
h the
O
ncyte business
combination.
Pursuant to IFRS, t
he Company does not capita
lize research a
nd
development ex
penses until
marketing aut
horization.
Accordingly,
all clinical,
research a
nd
development s
pend relat
ed to the develo
pment of t
he Company’s CAR T
product c
andidates an
d
allogeneic plat
form are ac
counted for
as operati
ng expenses
for the year 2021.
•
The Company’
s exclusiv
e agreement
for Horizon D
iscover
y
generation all
ogenic CAR T
Therapies acquire
d for $1.0 milli
on end of December
2018. At the
closing date,
milestone p
ayments are c
apitalized f
or a total amount
of $0.4 millio
n.
•
New licen
s
es acquir
ed in 2021 regar
ding an exclusi
ve patent licens
e agreement
signed with t
he
University of
Pennsylvania fo
r an engager target
ing Glypic
an 3 (GPC3) for $0.1 m
illion and an
exclusive l
icense fr
om the Moff
itt Cancer C
enter for an
antibody
directed t
o Tumor
glycoprotei
n (TAG
-
72), w
hich both will for
m the basis of a T cell engag
er to be used with th
e shRNA
platform techn
ology of the Co
mpany for $0.
2 million.
Property, pl
ant and equi
pment net bo
ok value m
ainly refer
s to right
-
use on l
eased asse
ts in compli
ance
with IFRS 16 standar
d (office and facil
ities, vehicl
es and equipm
ent). The decre
ase of €
comparatively
to 20
20
is exp
lained by €1.
3
m
illion of amortiz
ation on the peri
od compensated by
the additio
n
of €0.
4
million
of new assets
mainly relat
ed to new lab
oratory equi
pment
(s
ee note 5.7).
Non
-
current tr
ade receiva
bles (€2.
millio
n as of Decem
ber 31, 202
1
)
mainly ref
er to discount
ed and ris
k
-
adjusted miles
tone receiv
ables, t
o be cashed in by t
he Company in
accordance w
ith the term
s of the
exclusive lic
ense
agreement sign
ed by the Comp
any with Mesob
last Ltd. for
C
-
Cath
ez
device

Non
-
current gr
ant receivab
les relate t
o a receiva
ble on th
e amounts to c
ollect from t
he Federal G
overnmen
t
as R&D tax cre
dit recogniz
ed for the first
time at year
-
end 2017 (€1.2 m
illion),
including a o
ne
effect. Sinc
e 2018, furth
er R&D tax cr
edit receiv
ables are
recorded on a
n annual base
increment.
For the
year ended De
cember 31, 2
021, the Com
pany recor
ded additio
nal R&D tax
credit of €0.
7
taking int
o
account all info
rmation availa
ble as of Decem
ber 31, 2021
. T
he Group recei
ved the
reimbursement from the
Federal Gover
nment of
rel
ated to the fis
cal year 2016 t
ax credit
.(see note 5.
8).
At December 31,
202
the current grant r
eceivables r
elate to the
cash proc
eeds to be receiv
ed, associat
ed
with conventi
ons numbere
d 8088 (CYA
D
-
02 CYCLE 1)
,
8212 (CYAD
-
101)
, 1910028 (Cw
alityCAR)
and 8516
(new convent
ion signed in 2
021 regardi
ng new engag
ers), a
mount to €
million (see note
5.9), an in
crease
The Company’s
T
reasury positi
on
€
30.0
million at
Dec
ember 31, 2021 which
accounts for a
n
in
crease of €
million as com
pared to year
-
end 2020,
as
a result of cas
h proceeds from
capital
raises durin
g the period par
tly compens
ated by
t
he Group’s operati
ons
(see not
e 5.10 & 5.11).
Lease liabili
ties reach a tot
al amount of €
2
.
6 million as of Dec
ember 31, 202
, decreasi
ng by €
compared to the y
ear
-
end 20
20
. The decreas
e is mainly exp
lained by the repaym
ents of leases dur
ing the
year 202
1
(see
note 5.19.2).
The recoverabl
e cash advances (
RCAs) reach a total
balance of €
million as of Decem
ber 31, 202
increase
of
€1.
ear
-
end 20
20 mainly r
elated to new liab
ility comp
onents recog
nized
in 2021. (see not
e 5.16 & 5.19.2)
.
The continge
nt consider
ation paya
ble and other
financial l
iabilities
amount
s to €1
million at
year
-
end
which represe
nts a decrease o
f €
0.8
million co
mpared to Dec
ember 31, 20
20
. This
decrease is mainly
driven
•
The update of the assum
ptions ass
ociated with t
he timing of the potential c
ommercializat
ion of the
Group’s allo
genic CYAD
-
101
CAR T progra
m for mCRC which h
as been delay
ed by one year;
•
The update of the as
sumptions associ
ated with t
he timing, develo
pment and the
potential
commercializ
ation of the Gr
oup’s auto
logous CYAD
-
02 CAR T program for r/r AML/MDS to reflect
the future devel
opment of the progr
am through pot
ential pa
rtnership, whi
ch has been delayed by
•
The update in W
ACC used for f
air value measur
ement purpos
es at Decem
ber 31, 2021;
•
The revaluatio
n of the U.S. dol
lar against t
he Euro; an
d
•
The updated ass
umptions on
Probability of
Success (PoS)
associated wi
th the Group’s CAR T
Trade payable
s amount to €
million at
year
-
end,
which repres
ents a
n in
creas
e of €
mill
ion compare
d
to year
-
end 20
20
,
which is mainly
attribut
able to monthly
effect in the t
iming of the expenses
and the
payments relat
ed (see note 5.
18).
The other current
liabilities a
mount to €
million at year
end which repres
ents an increase of
€
compared to pr
ior year
-
end.
This increase is
mainly expl
ained by:
3
‘Treasury position’ is an alternative performance m
easure determined by adding Short
-
term i
nvestments and Cash and
cash equivalents from the statement of financ
ial position prepared in acc
ordance with IFRS. The purp
ose of this measure
by Management is to identify the lev
el of cash available internally (excludi
ng external sources of financing) within 12

•
An increase on soc
ial security and payr
oll accruals
of
€0.2 million compared to Decem
ber 31, 2020
is mainly relat
ed to employee
movements
in 2021;
•
An accrual of
€0.8 millio
n for the re
imbursem
ent of R&D tax
credit re
lated to tax a
udit on fis
cal year
2015. In 2020,
an accrual had
been establis
hed to cover
for a €1.0 milli
on reimbur
sement of R
&D
tax credit relat
ed to an asses
sment resulti
ng from an audit of
fiscal years 201
3 and 2014. T
he
reimburseme
nt will be required
through the firs
t quarter of 2022 even t
hough the manageme
nt plans
to appeal the as
sessment, co
mpensated by;
•
The decrease of
the other cu
rrent liabi
lities relat
ed to RCAs and
other grant
s by €0.7 m
illion. T
he
total amount of
€1.1 milli
on as of Decem
ber 31, 2
021 is attac
hed to RCA
conventions
numbered
8087 (CYAD
-
01
–
DEPLETHINK), 8436 (CYAD
-
211 Immunicy
) and 8516 (new engager
s) and is
explained by t
he excess of c
ash procee
ds received f
rom the W
alloon Regi
on compare
d to the
eligible exp
enses covere
d by these conve
ntions recog
nized in 202
1;
For more detai
ls on other curr
ent liabil
ities, refer t
o note 5.18.
1.11.3.
Analysis of t
he
cash
burn rate
4
The table belo
w summarizes
the net cash bur
n rate of the Com
pany for the y
ear 2021
For th
e year en
ded 31 D
ecemb
er,
Net cash used in operations
Net cash (used in)/from investing
Net cash (used in)/from financing activities
39 521
Effects of exchange rate chan
Change in Cash and cash equi
valents
Change in Short
-
term investments
Net cash burned over the period
The net cash burn rat
e for the y
ear ended Decem
ber 31, 2021
is a net cash inf
low amounti
ng to €12.
8
million, comp
ared to a net cas
h outflow of €
22.1 milli
on for
the year
ended Decem
ber 31,
The cash outflo
w resulting fr
om operating ac
tivities amou
nted to €26.6 m
illion for t
he year ended Decem
ber
31,
2021, whic
h is in line with
the €27.7 milli
on
for
t
he year ended Dec
ember 31,
2020.
Cash flow fro
m investing ac
tivities re
presented a
net cash outfl
ow of €0.1 mi
llion for
the year en
ded
December 31,
2021, whic
h is in line 2020 act
ivities.
The increase i
n cash inflow fr
om financing
activities
is primarily d
ue to:
•
An increase in t
he procee
ds from capit
al raise of €3
6.6 milli
on obtained in
2021. No capit
al increas
e
had occurred in t
he year 2020;
and
•
A partial offs
et coming fro
m lower proceeds
r
eceived
from Walloon Regi
on and
F
G
overnment in
2021 for a tota
l amount of €4.4 m
illion (comp
ared to €7.3 m
illion in 202
0).
4
‘Net cash burn rate’
is an alternativ
e performance measure determi
ned by the year
-on-year net va
riance in the Group’
s
treasury position as above defined. The purpos
e of this measure for the Manag
ement is to determine the c
hange of the

As of December 31, 202
1
,
we employed
time empl
oyees,
me employ
ees,
Executive C
om
mittee (amon
g them 3 are under
services agr
eement),
and 2 managers un
der manageme
nt
All entities of the G
roup continue to hol
d the permits requir
ed by their acti
vities and are in compl
iance wit
h
all applicabl
e environment
al rules.
5
Management m
ade an assessm
ent of the Company
’s ability t
o continue as a go
ing concer
n through
preparation of
detailed
budgets and cas
h flow forecas
ts for the years
2022 and 2
023. These forec
asts reflec
t
the
strategy of t
he Group and
include sig
nificant exp
enses and c
ash outflo
ws in relati
on to the
developmen
t
of selected researc
h programs
and pipeline of product
s candidat
es. In perform
ing this assessme
nt,
management c
onsidered fact
ors that could indic
ate the pr
esence of mater
ial uncertai
nties that m
ay cast
significant do
ubt upon the co
mpany’s abilit
y to continue as a going c
oncern. F
actors consider
ed include
d:
operating loss
es and absenc
e of any firm com
mitments for
additional fi
nancing bef
ore the report
ing da
As of December 31,
2021, the Comp
any had cash and cas
h equivalent
s of €30.0 mill
ion and no short
-term
investments.
On January 8, 2021, we e
ntered into a c
ommitted equ
ity purchase agr
eement (“
Purchase
Agreement”)
over a 24
-
month t
erm for up to $40
m
illion wi
th Lincoln Par
k Capital Fund,
LLC (“LPC”)
,
pursuant to whi
ch LPC’s purch
ases are subje
ct to cert
ain conditions, inc
luding that t
he Company
deliver a Re
gular Purch
ase Notice (
as that ter
m is defined i
n the Purchas
e Agreem
ent) of
so long
as the adjust
ed price of
A
DSs exceeds
$1.00
Over the
remaining lif
etime of the P
urchase Agr
eement,
we will have the r
ight to direct LPC
to purchase up to an aggr
egate
amount of $28
each of which
represents o
ne of our
or
dinary shares
.
As of Decem
ber 31, 2021,
the remaining
amount of
$28.0 million
of this equit
y purchase agr
eement is ex
pected t
o strengthen t
he Company’s
current stat
ement
of financial
position whi
le also provi
ding the Comp
any with
access to futur
e capital
on an as need
ed basis
and to ensure suff
icient fundi
ng to cover its operat
ions for the next 12 mo
nths from t
he date the financial
Based on its c
urrent scope o
f activit
ies, the Compa
ny estimat
es that its
cash and cash
equivalent
s as of
December 31, 202
1 combined wit
h the remaining acces
s to the equity purc
hase agreeme
nt established
with
Lincoln Park Capit
al Fund, LLC (rem
aining amount of
$28.0 million as of
December 31, 2021) shoul
d be
sufficient t
o fund operatin
g expenses
and capit
al expenditur
e requireme
nts
After due cons
ideration of the ab
ove, the B
oard of Direct
ors determi
ned that Managem
ent has an
appropriate ba
sis to conclud
e on the
continuit
y over the next 12 m
onths the date t
he financial
statements ar
e issued
and hence it is appr
opriate t
o prepare the financ
ial statem
ents on a going con
cern
5
The uncertainly rais
ed by the COVID
-
19 pandemi
c is not impacting going conc
ern. Although there are l
ot of uncertainties,
it does not impact the Company’s abili
ty to continue operations until mid
2023 considering its treasury positi
on as of
December 31, 2021 combined with the remai
ning $28
.0
million from Lincoln Park Capi
tal Fund. For additional information
on COVID-19 pandemic update, r
efer to note 5.2.1.

Reference is made t
o section 2.8
“Descripti
on of the princip
al risks associa
ted to the activ
ities of the Group“.
On March 11,
2020, the Worl
d Health Orga
nization d
eclared the nov
el strain of c
oronavirus (
COVID
-
19) a
global pandemi
c and recomme
nded containm
ent and mitigat
ion measures
worldwid
e.
Through
out 2020 an
d
2021
, Belgium
and the Unit
ed States, wher
e the Com
pany
operat
e
be
en impact
ed by temporar
y
closures.
While progress has b
een made in the fight agains
t the ongoing CO
VID
-
19 pande
mic, including t
he
broad dissemi
nation and ad
ministratio
n of vaccines i
n certain count
ries,
the COVID
-
19 pa
ndemic has
continued t
o spread globa
lly. The l
ength or se
verity of t
his pandemi
c cannot be pr
edicted, b
ut the Compa
ny
anticipates t
hat there may c
ontinue t
o be additi
onal impac
ts from a prol
onged COVID
-
19 environm
ent on
the planned de
velopment act
ivities of
the Company.
T
in cl
inical tr
ials is reliant
on clinical tr
ial sites whic
h may be advers
ely affec
ted by global
health matter
s, including, am
ong other things
, the ongoin
g COV
ID-
19 pand
emic and the emergi
ng variant
s,
such as Delta
and Omicron
With regards
to the Comp
any’s clinic
al program
s, no major d
isruption i
n
enrollment w
ere experie
nced in the
CYAD
-
101, C
YAD
-
211 or
CYAD
-
02 progr
ams in 202
1 due to th
e
coronavirus pa
ndemic. Enroll
ment in the respect
ive trials for
CYAD
-
101 and CYAD
-
211 is ongoing wit
hout
any major disr
uption d
ue to the coron
avirus pan
demic, howev
er future di
sruptions may
occur. Ho
wever,
since 2020, c
ertain cli
nical sites
and instit
utions have
not been abl
e to recei
ve visits f
rom the Com
pany or
its represent
atives duri
ng the cor
onavirus pa
ndemic, whic
h has
delayed it
s data mon
itoring activ
ities an
d
delayed
a
bility to lock
the databases f
or completed st
udies
The long
19
on the Co
mpany’s operat
ions wil
l depend on
future dev
elopments, w
hich
are highly uncert
ain and cannot be pred
icted,
including the em
ergence of new vari
ants, such as Delt
a and
Omicron, and,
among other
things, additi
onal gover
nment rest
rictions int
ended to cont
ain COVID
-
effects, but
potential prol
onged closur
es or other
business disr
uptions may
negatively aff
ect its oper
ations
and the operations
of its agents, c
ontractors, c
onsultants or colla
borators,
which could have a mater
ial
adverse impact
its business,
results of
operations an
d financi
al condition.
In addition,
after enroll
ment in thes
e trials, i
f patients
19 during particip
ation in
the
Company’s
t
rials or are subje
ct to isolatio
n or shelter
place rest
rictions,
they may drop out of
miss schedul
ed follow
-
u
p visit
s or otherwise
fail to follo
w trial pr
otocols. If
patients ar
e unabl
e to follow t
he
trial protoco
ls or if the Company’s
t
rial resu
lts are otherwi
se disputed due t
o the effects of t
he COVID
pandemic or ac
tions taken to mitigat
e its spread, the int
egrity of data f
rom
its
trials may be compromised or
not accepted b
y the FDA or ot
her regulator
y authorities
, which would r
epresent a s
ignificant
setback for t
he
Some factors from the COVID
-
19 pandemic that the Company
believe
s
may adv
ersely aff
ect enrollment
in
•
The diversion
of healthcar
e resources away
from the conduct
of clinical tri
al matters to f
ocus on
pandemic con
cerns, inclu
ding the att
ention of physici
ans serving as
the Company’s
investigator
s, hospitals s
erving as
clinical
trial sites and hos
pital staff s
upporting the c
onduct of
•
Some patients
who would oth
erwise be ca
ndidates f
or enrollment
in
are at increas
ed risk of sev
ere effec
ts of the coro
navirus, which m
ay lea
d to the death
of
patients an
d render other
s too ill t
o participat
e, limitin
g the avai
lable pool
of participant
s for
•
The fact that t
here can be no guarantee that
any proposed chan
ges to the Company’s
necessary, w
ould be accept
able to regul
ators;
•
Limitations o
n travel t
hat interrupt
key trial
activities, s
uch as clinic
al trial site
initiatio
ns and
•
Interruptio
n in global s
hipping af
fecting the t
ransport of
clinical tria
l materials
being used
in
the

These and oth
er factors
arising from t
he COVID
-
19 pandemic cou
ld worsen in c
ountri
es that are alr
eady
afflicted w
ith the virus or
could conti
nue to spre
ad to additi
onal count
ries, each of
which may f
urther
adversely impa
ct the Company
’s
clinical trial
s. The global out
break of the COVI
D
-
19 pandemic cont
inues t
o
evolve,
and the conduc
t of
trials may cont
inue to be adverse
ly affected,
despite effort
s to mitigat
e this
Even if
able to enro
ll a suffic
ient number o
f patients i
n
clinic
al trials,
delays in pati
ent
enrollment m
ay result in incre
ased costs
or may affect t
he timing or outcom
e of
its
clinical trials, which c
ould
prevent compl
etion of these tr
ials and advers
ely affect
ability to advanc
e the development
of
The impact of CO
VID
-
19 on the Company
’s
business is u
ncertain at t
his time and will dep
end on future
developments
, which are h
ighly uncer
tain and ca
nnot be pred
icted, incl
uding new inf
ormation whi
ch may
emerge concer
ning the severi
ty of the coronavirus
and the actions t
o contain the coron
avirus or tr
eat its
impact, among
other things
, but prol
onged closures
or other busin
ess disru
ptions may ne
gativ
ely affect
the
Company’s
oper
ations and t
he operations of
agents, contr
actors, co
nsultants or
collaborators
, which
could have a mat
erial advers
e impact
business, r
esults of oper
ations an
d financial c
ondition.
1.16
Events and circumsta
nces that could have a significant impact on the
future
The Company
not ide
ntified sign
ificant event
s and circumst
ances that could hav
e a significant
impact
on the future in
addition to t
he potential im
pact of
risks describe
d in section
7 of chapter 2:
"Description of
the principal
risks assoc
iated to the act
ivities of
the Group".

This section
the rul
es and prin
ciples on the b
asis of whic
h the corporate
governance
of the
Company has
been
pursuant to
, th
e Company's art
icles of ass
ociation, an
d the
Company's cor
porate govern
ance charter (
the “Charter”) ad
opted in accord
ance with the B
e
l
gian Corpor
ate
Code of
2020 (th
e “C
and upd
ated regula
rly by
the Boar
d of Director
s.
The Company does
not incorporate the inf
ormatio
n contained on,
or accessible throu
gh, its corpor
ate
website into thi
s Report, and y
ou should not c
onsider it a par
t of this Report
.
The Charter is av
ailable on the Comp
any’s websi
te (
www.celyad.com
) under
The text of
the
is
availabl
e on the webs
ite of t
he Commissi
on of Corpor
ate Govern
ance at
https://
www.corporat
egovernan
cecommittee.
be/fr/ov
er
2020/code
The Board of Directors
intends t
o comply with the prov
isions of the C
but beli
eves that the s
ize and the
current state of
development
of the Company justifies
certain deviat
ions. These dev
iations are fur
ther
The Charter in
cludes the f
ollowing mai
n chapters:
•
Structure and
organization
•
The Board : term
s of referenc
e
;
•
Rules prevent
ing market ab
use
;
•
Miscellaneous
and annexes
.
2.2.1.
C
omposition of the Boa
rd of Directors
As
of
the
CCA
, the Com
pany is mana
ged by a Board
of Directors ac
ting
as a collegi
ate body. The B
oard of D
irectors'
role is to pur
sue the long
-
t
erm succes
s of the Com
pany by
providing entr
epreneurial le
adership and enabli
ng
risks to be assess
ed and managed.
The Board o
f
Directors deter
mines the Com
pany's values and s
trategy, its
risk preferen
ce and key polic
ies. The Boar
d of
Directors ens
ures that t
he necessary lead
ership, financ
ial and human r
esources are in plac
e for the
C
ompany to meet it
s objectives
.
The Company has opte
d for a one
-
tier
governance st
ructure. As
provided by Ar
ticle
of the
Board of Direct
ors is the ultim
ate decision
-
m
aking body i
n the Company, e
xcept with resp
ect to those ar
eas
that are reserv
ed by
l
aw or by the Comp
any's articles
of associati
on to the Shar
eholders
Meeting.

The Company'
s articles of as
sociation s
tate that the num
ber of direct
ors of the Company
, who may be nat
ural
persons or legal
entities an
d who need not be shar
eholder
s, must be at leas
t
three
. At least half of the
members of th
e Board of Dir
ectors must
be non
-
executiv
e director
s and at least
three of them
must be
A meeting of th
e Board of Dire
ctors is validly
constitut
ed if at least hal
f of its member
s are present
in person
or represented
at the meeting. I
f
quorum is
not met, a new board
meeting may be conv
ened by any
director to del
iberate and deci
de on the matters
the agenda of the board meeting for w
hich a quorum wa
s
not met, prov
ided that
at
least two mem
bers are pr
esent. M
eetings of th
e Board of
Directors ar
e convene
d
by the Chair
of the Board or the CFO or
the
Chief Legal Officer, or by
at least two direc
tors, whenev
er
the interest of t
he Company so r
equires. In p
rinciple, t
he Board of D
irectors wil
l meet at least
four times
per
The Chair
of the Boar
d of Direct
ors shall hav
e a casting v
ote on matt
ers submit
ted to the Boar
d of
Directors in th
e event of a t
ied vote.
Until
such time
as the
Fortress
Shar
eholders
(which shal
l have the meani
ng ascribed to
it in that cert
ain
shareholders’
rights agreem
ent dated as of Dec
ember
2021 by and be
tween CFIP CLYD LL
C and the
Company, in the f
orm filed with the Unit
ed States Securit
ies and Exchan
ge Commissio
n on Decembe
r 3,
2021)
own
in the aggregate l
ess than
10% of the then out
standing
s
hare
s (including
s
h
ares underlyi
ng
American Depositary Shares)
for a period of mor
e than thirty
(30) consecu
tive days:
(i)
Fortress I
nvestment Group L
LC (“For
tress”) shall
have the ri
ght to select t
wo (2) individ
uals (t
he
“Fortress Des
ignees”) t
o be, at Fort
ress’s optio
n, (a) member
s of the Board,
(b) non
-
voting
observers of t
he Board or (c
) a combi
nation ther
eof (provid
ed tha
t if Fortress selects both Fortress
Designees to be m
embers of the Board, For
tress may also selec
t a third Fort
ress Designee t
o be
a non
-
voting o
bserver of the
Board), and
(ii)
the Board, at Fortr
ess’s option
, (a) shall reco
mmend the co
nfirmation or
(re)appoint
ment of any
two (2) Fortr
ess Designe
es as member
s of the Boar
d at any app
licable gener
al meet
ing of
shareholders
of the Comp
any, (b) s
hall appoint
any two (2
) Fortres
s Designees as
non
-
observers of t
he Board or (c)
shall proceed t
o a combinati
on thereof,
and
(iii)
Upon the termi
nation of the board m
andate of any F
ortress Design
ee (for whatev
er cause), at
the option of Fortres
s, (a) the Company shal
l as soon as pract
icably possibl
e co
-
opt to the Board
a replacement F
ortress Desig
nee, and shall use bes
t effort
s to cause the confirm
ation of the co
-
optation at t
he next g
eneral meetin
g of share
holders of t
he Company;
or (b) the
Company shal
l
as soon as practic
ably possible appr
ove the appointm
ent of a replaceme
nt Fortres
s Designee as
a non
-
voting o
bserver of the
Board of Direc
tors, and
(iv)
the Company shal
l not, direc
tly or indirec
tly, without
the consent
of recommend,
directly or
indirectly,
or take any action to (a) inc
rease the size of the Board or (
b) co
-
opt or appoint t
o the
Board, in plac
e of the Fort
ress Designees
, any indiv
idual oth
er than a Fortres
s Designee.
At the date of t
his Report, t
he Board of Dir
ectors cons
ists of
9
members, one of which is
an executive di
rector
(
with daily man
agement autho
rity) and
of
which are non
-
e
xecutive dir
ectors, i
ncluding
th
ree
directors.
The Board of Dir
ectors is com
posed of
6
m
en and
3 women
.
Board
Commi
ttee
Memb
ership
Chairman of the Nomination and
Remuneration
Member of the Audit Committee and the
Nomination and Remuneration Committee

Dominic Piscitelli
Independent Director
2024
Chairman of the Audit Committee and
member of
the Nomination and Remuneration Committee
Marina Udier
Independent Director
Member of the Audit Committee
(1) Represented by Michel Lussier.
(2)
Christopher LiPuma has been
elected as Board member as of January 20, 2022, in replacem
ent
of
BV
who
resigned
from the Board on Ja
nuar
y 14, 2022.
(3)
Ami Patel Shah has been ele
c
ted as Board member on Dece
m
ber 7, 2021 in replace
m
ent of Maria Koehler
who has
resigned
from the Board of Directors on Augu
st
The
following paragr
aphs contain br
ief biographi
es of each of the direct
ors, or in case of legal entit
ies being
director, the
ir permanent r
epresentat
ives, wit
h an indicat
ion of other re
levant mand
ates as member
of
administrat
ive, managem
ent or super
visory bodi
es in other
companies dur
ing the previo
us five y
ears.
Michel Lu
ssier
serves as Chair
man of the B
oard of Direct
ors. Mr.
founded Cardio
3 Bioscienc
es
SA the compan
y which becam
e Celyad SA. M
r
.
Luss
ier curre
ntly serves al
so on several B
oards of Dir
ectors:
iSTAR Medical
SA and Gab
i Smart Car
e SA as Ch
airman, O
cclutech AG
as board mem
ber. Previ
ously,
Mr
.
Lussier
found
ed MedPole S
A and its
Nor
th America
n affiliate M
edpole LT
D, a Medtech
and cell
therapy
incubat
or for start
-
up companies, servi
ng as CEO until J
uly 2020. From May 2014 an
d until
September 202
0, Mr.
Lussier
also served as the CEO
of Metronom Healt
h Inc, an early
stage medical devi
ce
company foun
ded by Fjord V
entures, w
here he also ac
ted as a mana
gement c
onsultant.
Mr. Lussier ser
ved
as a member of t
he Board of Director
s of Biologic
al Manufac
turing Servic
es SA until 201
7.
2002 to 2013,
he worked for
Volcano Corp
oration, wher
e he served i
n global le
adership posi
tions. M
r
.
Lussier star
ted his career with
Medtronic wher
e he
held a nu
mber of technic
al, marketing,
sales then gener
al
management
Lussier obtai
ned a Bachelor
of Sciences degr
ee in Electric
al Engineer
ing and
Master’s Degr
ee in Biomedi
cal Engineer
ing at the Un
iversity
of Montreal.
He also holds
an MBA fro
m
F
ilippo
Petti
is Chief Execut
ive Off
icer
,
Chief F
inancial Offi
cer of the C
ompany, and E
xecutiv
e Director.
Prior
to joining the C
ompany, Mr
. Petti work
ed in healthc
are invest
ment banking b
oth at Well
s Fargo Securi
ties
and William Bl
air &
until 2017. Pri
or to his roles in inves
tment bank
ing, Mr. Pett
i spent several
years in equity
research cov
ering U.S. biot
echnology co
mpanies both
at William Bla
ir & Company
and
Wedbush Sec
urities. He
began his c
areer as a r
esearch sc
ientist at O
SI Pharmac
euticals
, Inc. f
ocused on
drug discover
y and translat
ional researc
h, and later t
ransitioni
ng into cor
porate devel
opment with t
he
company. Mr.
Petti holds a M
aster of Busi
ness Adminis
trati
on from Corne
ll Universit
y, a Mast
er of Science
from St. John’
s University and a Bachelor of Science from Syracuse University.
Serge Gobl
et
holds a Master
Degree in Busines
s and Cons
ular Sciences
from ICHEC,
Belgium and h
as
many years of inter
national exper
ience as direct
or in Belgian and f
oreign compani
es. Mr. Goblet
is the
managing dir
ector of T
OLEFI SA, a Belgi
an holding c
ompany an
d holds direc
tor mandat
es in subsid
iaries
Chris Buyse
b
rings more tha
n 30 years of i
nternation
al financial ex
pertise an
d experien
ce in introd
ucing
best financi
al manageme
nt practic
es. He is cur
rently Mana
ging Direct
or of FUND+
, a fund that
invest
s
i
n innovative B
elgian Life S
ciences com
panies
.
Between August 20
06 and June 201
4, Mr.
Buyse served as
the Chief Fin
ancial Of
ficer and boar
d member of
ThromboG
enics NV, a
leading biot
ech company t
hat is
listed on NYSE E
uronext Bruss
els. Before joi
ning Thrombo
Genics, he was t
he Chief Financi
al Officer of t
he

Belgian biotec
h company CropDes
ign, where he c
oordinated the ac
quisition by
BASF in July 2006. P
rior to
joining Cro
pDesign NV
he was financ
ial manager
of WorldCom
/MCI Belux,
a European s
ubsidiary of
one of
the world’s lar
gest telecom
municati
on companies a
nd he was also t
he Chief Fi
nancial Offic
er
,
interi
m Chief
Executive Officer
and member of
the Board of Dir
ectors
of Keyware Techno
logies. Mr.
Master’s Degr
ee in applied e
conomic scien
ces from t
he University of Ant
werp and a M
aster of Busin
ess
Association f
rom Vlerick School of
Management
in Gent. He current
ly serves, in his own nam
e or as
permanent re
presentativ
e of a managem
ent company,
as member of t
he board of direc
tors of t
he followin
g
publ
icly and pr
ivately held co
mpanies: Bio I
ncubator NV,
Pinnacle Inves
tments SA,
CreaBuild NV, Sofia
BVBA, Pienter
-
Jan BVBA, Life Scienc
es Research Part
ners VZW, Inv
entiva SA, The Franc
qui Foundati
on
and EyeDPharm
a SA. He has also previ
ously held a di
rectorship p
osition at Bone T
herapeuti
cs SA from
2008 to 2019. Mr
.
Buyse is also Board
at Hyloris
pharmaceutic
als
and the Found
ation Louis
-
Hilde Windels
is the Chief Executive O
fficer of
the privately
held diag
nostics compa
ny Antelo
pe Dx BV a
nd
she is also me
mber of its boa
rds of direct
ors. Ms.
Windels brings 20 y
ears of ex
perience in b
iotech wit
h a
track record of
business and cor
porate str
ategy, buildin
g and structur
ing organizat
ions, priv
ate fundraisin
g,
mergers and ac
quisitions a
nd public cap
ital market
s. Ms. Windels
has worked as C
hief Financ
ial Officer f
or
several biot
ech compani
es, amon
gst those Belg
ium based m
olecular D
x company Bi
ocartis wher
e she
started as Chi
ef Financi
al Officer CF
O in 2011. She tr
ansitioned t
o the c
o-
Chief
Executive O
fficer role
in
2015
,
bec
ame Chief Exec
utive Of
ficer in 2017, and s
erved in such r
ole until 201
9. Later that
year, she joine
d
MyCartis NV
until 2021 as Chief
Executive O
fficer and in 2019 she was
appointed CE
O of Mycar
tis’ spin
-
out Antelope D
x, where sh
e now also serv
es as a Board m
ember. Ms.
Windels is mem
ber of the bo
ard of
directors of
Erytech and M
dxHealth.
She holds a M
aster’s Degr
ees in Ec
onomics (Com
mercial Eng
ineer)
from the Unive
rsity of Leuven
(Belgium).
Dominic Pisci
telli
bring
s mor
e than 20 years of i
ndustry experi
ence, includin
g debt and equit
y financings
,
in
-
licensing tr
ansactions,
acquisitions
, marketin
g partnershi
ps and commercia
l product lau
nches
(XTANDI®
and Tarceva®)
. Since Septembe
r 2019 Domini
c has served a
s the Chief
ORIC Pharma
ceuticals, N
asdaq
-
list
ed biotechn
ology company
, that com
pleted its init
ial public of
fering i
n
April 2020. P
rior to j
oining ORIC,
Mr. Piscit
elli was CF
O of Anapty
sBio, a Nas
daq
-
listed b
iotechnolo
gy
company, wher
e he helped ra
ise over $500 m
illion in an IP
O and follow
-
on financings.
From 2012 unt
il 2017,
Mr. Piscitell
i was Vice Pr
esident of F
inance, S
trategy and In
vestor Relat
ions at M
edivation
and played a k
ey
role in its acqu
isition by Pfize
r. Previously
, he served as S
enior
Director
of Collabor
ations and Oper
ations
Finance at Ast
ellas Pharm
a. Prior to that
, Mr. Piscit
elli served in v
arious roles
of increasi
ng respons
ibility
culminatin
g as the Vice Pres
ident, T
reasury & Manag
ement Finance at
OSI Pharm
aceuticals,
and played a
significant r
ole in their acq
uisition by Ast
ellas. M
r. Piscitelli beg
an his care
er with KPMG and is
a certified
public account
ant. He earned
a bachelor’s d
egree in account
ing and an MBA from Hof
stra Universit
y (New
York).
Marina Udier,
Ph.D
.,
serves as CE
O of Nouscom af
ter joining
as Chief
Operating Off
icer in 2016 f
rom
Versant Ventur
es, where she was O
perating Pr
incipal. Prio
r to Versant,
she held senior devel
opment and
commercial ro
les at Nov
artis in Base
l includi
ng work as a
Global Comm
ercial Hea
d. Prev
worked for Mc
Kinsey & Company i
n the US, work
ing with Healthc
are Fortune 50
0 companies in ar
eas of
marketing, s
trategy and pr
icing. She has
a Ph.D. in Or
ganic Chemistr
y from Yale Univ
ersity.

Ami Patel Shah
is a Managing Dir
ector in For
tress Investment
Group LLC’s Intell
ectual Pr
operty Group
based in San Fr
ancisco, wher
e she focuses
on a wide varie
ty of investm
ent opportuni
ties in connec
tion with
intellectua
l property
and tech
nology. Pri
or to joining F
ortress
in 2013, M
s. Shah wor
ked
for Intel, most
recently he
ading Intel’s
Global
Wireless Pat
ents group,
overseeing t
he Intel
’s patent pr
ocurement,
licensin
g,
transaction an
d monetizat
ion activities
for Intel and t
heir development
partners
. At Intel, Ms.
Shah also held
wide
-
ranging a
nd deep tech
nical respons
ibilit
ies, as well
as led Intel
’s standar
ds bodies i
nteractions
. Befor
e
joining Intel
, she was wit
h the law f
irms of Do
rsey & Whitney
, and Fish &
Richardson w
here she wor
ked on
patent prosecu
tion, licens
ing and ITC litigat
ion matters
. Ms. Shah is recogniz
ed as one of the World
’s
Leading IP St
rategists by Int
ellectual Asset
Magazine in t
he IAM 300, awarded to in
dividuals
with an
established t
rack record i
n developi
ng and rolling
out world
-
class IP valu
e creation programs. Ms. Shah
began h
er lega
l career as a
n examiner i
n the Unit
ed States Pat
ent Office and
was an engi
neer in the
auto
industry. M
s. Shah holds a J.
D. from Clevel
and State U
niversity
along with a B.
S. in Electri
cal and Compu
ter
Engineerin
g from Wayne St
ate Universit
y.
Christo
pher LiPuma
is a Dir
ector in Fortr
ess Investment
Group LLC’s Intel
lectual Pr
operty Group bas
ed in
San Francisc
o, where he foc
uses on a w
ide variety
of invest
ment opportu
nities in co
nnection wi
th intellec
tual
property, li
fe sciences,
and academic ins
titutions.
Prior to join
ing Fortr
ess in 2018, Mr.
LiPuma head
ed
business devel
opment for K
astle Therapeuti
cs, a private equit
y backed biot
echnology co
mpany acquiri
ng
ultra
-
orphan dr
ugs. Before joi
ning Kastle,
Mr. LiPuma was with O
rbiMed Advisor
s, a life sci
ences
focused
asset manage
ment firm.
At OrbiM
ed, Mr. LiPuma wor
ked on royalty m
onetizatio
ns, direct lendi
ng to late
development s
tage and early com
mercial stage li
fe sciences com
panies, and sev
eral private e
quity
transactions
focused on acqu
iring legacy as
sets from big pharm
a. Mr. LiPuma star
ted his career as a
n
investment ban
ker at Leeri
nk Partners. M
r. LiPuma holds a
B.A. from
Hamilton Colle
ge.
The
Bo
ard
meets
as
ently
as
the
interest of the C
om
p
any d
e,
bu
t i
n a
ny
suf
ficiently reg
u
la
r
ly
to
ena
b
le
it to dis
ch
arg
e
its
duties
eff
ectively,
an
d cer
t
ai
nly not l
ess
th
an
fou
r ti
m
es
p
er
y
ear.
Each
ired
by
an
sence,
appo
by
ar
Board may only validly delibe
rate and decide on issues
before it, if at least half
of its members are present
or represented. A
new meeting must be convened if
a quorum is not
reached. The second meet
ing may
validly deliberate and decide on the items that wer
e on the agenda of the first meeting regardless of the
number of directors present or represent
ed, to the extent that at least two members of the Board are
present. Any director m
ay represent more than one other direc
tor.
Resolutions are taken by a simple major
ity of the votes cast
(i)
for resoluti
ons regardin
g the use of the aut
horized cap
ital, and as lon
g as Serge Gob
let is a
director of the Com
pany, the majorit
y of the votes must
include the positiv
e vote of Serge Goblet,
or his abstenti
on, to be adopt
ed;
(ii)
until such time as t
he Fortress Shareh
olders own in t
he aggregate less
than 15% of t
he then
outstandin
g shares (includi
ng shares under
lying Americ
an Depositary S
hares) for a per
iod of
more than thirty (
30) consecutiv
e days, any decision i
n respect of
the following requir
e the positiv
e
vote of 90% of t
he directors p
resent or va
lidly repr
esented: any
IP Transac
tion (define
d as the
termination
of the Comp
any’s intell
ectual pro
perty or any l
icense, su
blicense or
contribut
ion of
intellectua
l property ri
ghts to third part
ies) involvi
ng intelle
ctual propert
y rights lice
nsed to the
Company or any of it
s subsidiaries
by the Trustees of
Dartmouth Col
lege relating t
o TCR
deficiency (whi
ch, for the avoid
ance of doubt,
does not include the Co
mpany’s cardi
ologi
medical devic
es), (s
uch intelle
ctual prop
erty rights th
e “Dartm
outh IP”) wit
h any of the f
ollowing
characteris
tics: (i) a t
ransfer of l
itigation or
prosecut
ion rights t
o licensee
s and sublic
ensees
associated
with any of
the Dartmout
h IP, (ii) th
e grantin
g of an excl
usive lice
nse to any
Dartmouth
IP, (iii) the t
ermination of an
y rights made avail
able to the Company
or any of its s
ubsidiaries to

any Dartmouth
IP or (iv) any
license or s
ub)licens
e that (x) does
not consti
tute an arms
-
length
transaction f
or
fair
market value or (y
) the terms of whic
h, on their face, are not
consistent w
ith
market practic
e in the juris
dictions and i
ndustry i
n which the Compa
ny operates.
;
Furthermore,
until such tim
e as the Fort
ress Shareholders
own in the aggr
egate less tha
n 10% of the th
en
outstandin
g shares (inc
luding shar
es underly
ing America
n Depositary
Shares) for a
period of m
ore than
thirty (30) cons
ecutive days, t
he Company shall not
, directly or
indirectly, witho
ut the consent of F
ortress,
(a
) incur or issue any ind
ebtedness
that would enc
umber any intel
lectual proper
ty of the Compa
ny, (
b
) issue
any Equity Secur
ities
(
defined
as any share and any other s
ecurity, financ
ial instrum
ent, certif
icate or other
right (includ
ing options,
futures,
swaps and ot
her derivativ
es) repr
esenting, bei
ng exercisa
ble, convert
ible or
exchangeabl
e into or for, or
otherwise prov
iding a right t
o acquire, direc
tly or indir
ectly, any of
the securitie
s
mentioned ab
ove or any ot
her security
or financial
instrum
ent the value
of which is ba
sed on any of
the
foregoing)
of
the Company that
are senior to t
he
o
rdinary
s
hares
with respect t
o the right to receive
(x)
dividends or ot
her distribut
ions to sharehold
ers or (y) proceeds in t
he event of the liquid
ation, dissol
ution or
winding
-
up of t
he Company (inc
luding for
such purposes
in connecti
on with any c
hange of cont
rol
transaction)
, (iii) alter,
amend or change the right
s, preference or pri
vileges of t
he
s
hares, includ
ing in
connection wi
th any reclassi
fication, r
ecapitaliz
ation, reorg
anization or
restructuri
ng, (iv) make any pr
oposal
to amend, repeal or ot
herwise modif
y
any provis
ion of the Comp
any’s articles
of associati
on that would be
reasonably ex
pected to adve
rsely affect
the interests
of Fortress or
any Fortress Share
holder or (v
) make
any proposal t
o modify t
he rights of a
ny Equity S
ecurities
of the Compa
ny in a man
ner advers
e to any
In applicati
on of the ar
ticle 7:87 of
the CCA,
a director of
a listed com
pany is
considered
as independ
ent
if
he does not enter
tain with the
C
ompany or a
n important sh
areholder
of the
C
ompan
y
any relation t
he nature
of which could
put his ind
ependence at
risk. I
f the director is
a legal ent
ity, the indep
endence must
be
assessed both in t
he case of the legal entit
y and its perman
ent representat
ive. In order
to verify if a candida
te
director fu
lfils those c
onditio
ns, the indep
endence cr
iteria of
the article 3.
5 of the BC
G are appli
ed and can
•
The
direc
tor has not been an execut
ive member of t
he
B
oard of
D
irector
s, or daily manager
of the
C
ompany (or an af
filiate of t
he
C
ompany, if any)
, during a ter
m of
years pri
or to his or her
election
and do
es not posses
s any stock opt
ion of the
C
om
pany relate
d to that funct
ion
•
The
director h
as not been a n
on
-
ex
cumulativ
e
period of
more than 12 years
;
•
The
director
has not been a m
ember of the m
anagerial st
aff of the
C
om
pany (or an aff
iliate of t
he
C
ompany, if an
y) during a term
of three years pri
or to his or her elec
tion
stock option of
the
C
ompany r
elated to that
function
•
The
director do
es not receive and has n
ot received any r
emuneration or ot
her significa
nt financi
al
advantage fr
om the
C
ompany
(or an affiliat
e of the
C
ompany,
if any), other than t
he profit
share
(“tantièmes”)
and remunerat
ion receiv
ed in his or her
capacity
as a non
-
executive d
irector or
as a
member of the s
upervisory bo
dy;
•
The
director does not
own any corporate r
ights that r
epresent 10% or mor
e of the share capital
voting rights
of the
C
Further, t
he
director
cannot be app
ointed by a shar
eholder who f
alls
under the cond
itions set for
th in this cr
iterion;
•
The
director d
oes not and, d
uring the
y
ear precedin
g his appointme
nt
, did not
, have a s
ignificant
business relati
onship with t
he
C
ompany (or an aff
iliate of the
C
ompa
ny, if any), either
directly or as
a partner, shar
eholder, m
ember of the
B
oard of
D
irectors or
member of t
he manager
ial staff
of a
company or of a per
son that maint
ains such a r
•
The
director
is not and
has not been at
any time d
uring the p
ast three y
ears, a par
tner or an
employee of its
current or f
ormer statut
ory auditor or of a c
ompany or per
son affiliat
ed therewit
h;

•
The
director
is not an executiv
e director of an
other comp
any in which an execut
ive director
of the
C
ompany is a non
-
exec
utive direct
or or a member of the superv
isory body, and has no ot
her
significant t
ies with exec
utive direct
ors of the
ompany thr
ough his or he
r involvement i
n other
•
The
direc
tor’s spous
e, unmarried le
gal partne
r and relatives (
via birth or mar
riage) up t
o the secon
d
degree do not
act as a member of t
he
B
oard of
D
irect
ors, member o
f the manage
ment board
(“directiec
omité / com
ité de direct
ion”) (sho
uld such cor
porate body be c
reated) or da
ily manager
or member of the man
agerial st
aff in the
C
ompany (
or an affiliat
e of the
C
ompany,
if any), and do
not meet one of
the criteria s
et out above.
The Board of Direc
tors, assist
ed by the Chief
Legal Officer
and upon recommend
ation of the Rem
uneratio
n
and Nominatio
n Committee,
determines a
nnually if
the condit
ions of indep
endence ar
e fulfilled by t
he
2.2.4.
Role of the Board in Risk O
versight
The
B
oard of
D
irectors is
primarily res
ponsible f
or the ov
ersight of
its ris
k management
activiti
es and has
delegated to t
he
A
ommit
tee the responsi
bility to ass
ist
oard of
D
irectors in thi
s task. While
the
B
oard
ov
ersees
the over
all risk mana
gement, the Comp
any’s
M
anagem
ent is responsi
ble for
the
day
day r
isk management
processes.
The
B
the
risk and risk m
anagement in
each business
decision, t
o proactive
ly develop a
nd monitor
risk managem
ent
strategies and proces
ses
for day
day activit
ies and to eff
ectively im
plement ris
k management s
trategi
es
adopted by the
B
oard of
D
irectors.
The Company believes
this divisio
n of responsibi
lities is the m
ost effectiv
e
approach for a
ddressing th
e risks the Comp
any face
2.2.5.
Committ
ees within the Bo
ard of Direct
ors
Without prejud
ice to the r
ole, respons
ibilities
and function
ing of the Ex
ecutive Comm
ittee
as set out
below
under secti
on “
”
, the Board of
Directors
may set up
committ
ees to
specific issu
es and advise t
he Board of Direct
ors on those is
sues. Such com
mittees are advis
ory bodie
s
only and the decis
ion
-
making
remains the collegi
ate responsibi
lity of the Boar
d of Directors
. The Board of
Directors det
ermines th
e terms of
reference
of
each committee with r
espect to t
he
, procedur
es,
policies and ac
tivities of t
he committee.
At the date of this
R
eport
, the
A
ommittee consist
s of
Marina Udier a
nd Hilde Win
dels
A
udit
C
ommitt
ee is to ensur
e the effect
iveness of t
he internal contr
ol and risk m
anagement
systems, t
he internal audit
(if any) and
its effectiv
eness and the st
atutory au
dit of the annu
al and cons
olidated
accounts, and
to review and m
onitor the ind
ependence of
the external a
uditor, in p
articular reg
arding the
provision of a
dditional ser
vices to t
he Company. The
A
ommittee repor
ts regularly
to the
B
D
irectors on the ex
ercise of its f
unctions. The
A
in which acti
on or improv
ement is necess
ary in its
opinion and pro
duces rec
ommendatio
ns concernin
g the
necessary st
eps that need to b
e taken. The au
dit review an
d the reportin
g on that review c
over the Comp
any
and its subsidi
aries as a whole. The m
embers of the
A
ommittee are
entitled to receive all
informat
ion
which they need t
o perform
their function
from the Board of Director
s, Executive Com
mittee and empl
oyees
.
Each member of the
A
ommittee shall ex
ercise this rig
ht in consultati
on with
hairman of
the
A
udit
The
A
udit
C
ommi
ttee’s duties
and responsib
ilities incl
ude, among oth
er
thi
ngs
: the financ
ial report
ing,
the
review of
internal c
ontrols an
d risk manag
ement, and
th
e internal a
nd external
audit proc
ess.

Th
o
se tasks are furt
her described i
n the
A
C
as set out in the Ch
arter and i
n
Dominic Piscitelli,
and Hilde
Windels hav
e been identif
ied by the C
ompany’s Bo
ard of Direct
ors as hav
ing
the necessary ex
pertise in ac
counting a
nd audit matter
s to serve as exp
erts on the A
udit Committ
ee.
The Audit Comm
ittee holds a minim
um of four m
eetings
2.2.5.3
Nomination a
nd Remuneration Co
mmittee
As of the date of t
his Report, the Nom
ination
and Remunerat
ion Committe
e is compose
d of three member
s:
Mel Management
SRL represent
ed by Miche
l Lussier (Cha
irman),
The Nominatio
n and Remuner
ation Commit
tee consist
not less t
han three dir
ectors, or
such greater
number as determi
ned by the Board of Direc
tors at any time. A
ll members must be non
-
exec
utive direct
ors
and at least a major
ity of its mem
bers must be inde
pendent
in accordanc
e with Article
of the
Company’s Bo
ard of Direc
tors has det
ermined that
Hilde W
indels and Dom
inic Piscit
elli
are indepen
dent in
accordance wi
th Article 7:87
of the CCA.
The Nominati
on and Remuner
ation Com
mittee must
have the nece
ssary experti
se as regards
the
remuneratio
n policy, a
nd this cond
ition is f
ulfilled if at
least on
e member has
had a higher e
ducation and
has
had at least thr
ee years of
experience in
personnel ma
nagement or
in the field of r
emunerating d
irectors
and
managers.
As of the dat
e of this Ann
ual Report,
Mel
Man
agement SRL
represente
d by Michel
Lussier
(Chairman),
Hilde Windels and Domi
nic Piscitelli
sat
isfy this
requirement.
The CEO has the right t
o attend the meetings
of the Nominati
on and Remunerat
ion Commit
tee in an adviso
ry
and non
-
voting capac
ity on matt
ers other than t
hose concerning hims
elf. The Nom
ination and Remun
eration
Committee will
elect a chairman f
rom amongst its m
embers. The Chairman of
the Nominati
on and
Remuneration
Committee is
actually Me
l Management S
RL represe
nted by
The role of the Nom
ination an
d Remunerati
on Committee is
to assist t
he Board of Direc
tors in all mat
ters:
•
Relating
to the selecti
on and recomme
ndation of
qualified candidat
es for members
hip of the Boar
d
•
Relating
to t
he nominatio
n of the CEO;
•
Rela
ting to the
nomination of
the members of
the
Executive Committee
, other t
han the CEO, upo
n
•
Relating
to t
he remunerat
ion of indepen
dent direct
ors;
•
Relating
to t
he remunerat
ion of the CE
O;
•
Relating
to the
remuneratio
n of the memb
ers of the
Executive Committee
, ot
her than the CEO
,
upon proposal
by the CEO;
•
On
which the Board of Directo
rs or the Chairm
an of the Board of
Directors requ
ests the Nom
ination
and Remunera
tion Committe
e's advice.
Additionally
, with regard t
o matters
relating to rem
uneration, ex
cept for thos
e areas that ar
e reserved by law
to the Board of
Directors,
the Nominat
ion and Remu
neration Comm
ittee wil
l at least hav
e the follow
ing tasks:
•
Preparing
the remun
eration repor
t (which is
to be includ
ed in the Board
of Director’s
corporat
e
governance st
atement); an
d
•
Explaining
it
s remunerat
ion report at
the Annual Gen
eral Shareh
olders Me
eting.
It will report t
o the Board of Dir
ectors on the p
erformanc
e of these tasks
on a regular bas
is. These task
s are
further descri
bed in the t
erms of referenc
e of the Nominat
ion and Rem
uneration C
ommittee as s
et out in the

Charter. The N
omination and
Remunerati
on Committ
ee will meet at
least twice per
year, and when
ever it
deems it neces
sary to carry
out its duties.
2.2.6.
Me
etings of the Boar
d and t
In 20
21
, the Board of
Directors
meetings by
telephone or
video
20 Jan
24 Jun
17 Sep
7 Oct
7 Dec
C. Buyse
Present
Present
Present
Absent
Present
Present
Present
Present
S. Goblet
Present
Present
Present
Present
Present
Present
Present
Present
Present
M. Koehler
Present
Present
Present
Present
Present
Present
Present
Present
Present
F. Petti
Present
Present
Present
Present
Present
Present
Present
Present
Present
D. Piscitelli
Present
Present
Present
Present
Present
Present
Absent
Present
Present
M. Udier
Present
Present
Present
Present
Present
Present
Present
Present
Present
H. Windels
Present
Present
Present
Absent
Present
Present
Present
Present
Present
Present
Present
Pres
ent
Present
Present
Present
Present
Present
Present
Present
BV Mel
Present
Present
Pres
ent
Present
Present
Present
Present
Present
Present
Present
In addition,
meetin
gs of the Board of Direc
tors
in 2021 in relation to a c
apital
increase or the
issuance of war
rants:
Represented
Represented
Represented
Represented
Represented
Present
Represented
Represented
Represented
Present
Represen
ted
Represented
Represented
Represented
Represented
Represented
Represented
Represen
ted
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
Represented
BV Mel
Represented
Present
Present
Present
Present
Repr
esented
Present
Present
Present
The Nominatio
n and Remuner
ation Commit
tee held
8
me
etings by telep
hone or videoc
onference:
Remuneration
and Nomination
Committee
18 Jan
17 Feb
22 Feb
21 Mar
24 Dec
28 Dec
F. Petti
Present
Present
Present
Present
Present
Present
N/A
N/A
D. Piscitelli
Present
Present
Present
Present
Present
Present
Present
Present
H. Windels
Present
Present
Present
Present
Present
Present
Present
BV Mel M
anageme
nt SRL
Present
Present
Present
Present
Present
Present
Present
Present

The Audit Comm
ittee held
5
meet
ings by teleph
one or videoc
onferenc
C. Buyse
Present
Present
Present
Present
Present
H. Windels
Present
Present
Present
Present
Present
The Board of
Directors has
establis
hed an
Executive Committee
. The t
erms of servic
e of the
Committee
h
ave been determ
ined by th
e Board of Direct
ors and are s
et out in the Comp
any’s Chart
er.
The
cons
ists of the Chief Ex
ecutive Of
ficer
who is the chairma
n of the
Executive Commit
tee
)
, the Chief Fi
nancial O
fficer
, or CFO,
currently F
ilippo Petti a
d interim,
the Chief
Scientific
Officer,
the Chief
Medical Of
ficer, the Chief
Legal Officer
and
t
he Vice President
Clinical
Development a
nd Medical Af
fairs, the Chi
ef Business O
fficer
and
the Chi
ef
Human Res
ources
The
dis
cusses and c
onsults with t
he Board of D
irector
s and advis
es the Boar
d of
Directors on t
he day
management
of the Company
in accord
ance with th
e Company's
values,
strategy, gen
eral policy
and budget,
as determine
d by the Board of
Director
s.
Each member of t
he
Executive Committee
has been m
ade individually
responsibl
e for certain aspec
ts of the
day
-to-
day management
of the Company an
d its business (
in the case of the CEO,
by way of delegation by
the Board of Direct
ors; in the case of the ot
her member of the
Executive Committee
, by w
ay of delegatio
n
by the CEO). T
he further t
asks for whic
h the
Executiv
is
responsibl
e are descr
ibed in gre
ater
detail in the se
ctions refere
ncing the Exec
utive Comm
ittee, as s
et out in the Comp
any’s Chart
er.
The members of t
he
are appointe
d and may be dism
issed by the Board of Di
rectors
at any time. The Board of Di
rectors appo
ints them f
ollowing the recomm
endation of t
he Nomination an
d
Remuneration
Committee,
which shall a
lso assist
the Board of Dir
ectors on the r
emuneration
policy of t
he
members of th
e
Executive Committee
, and their indiv
idual
The remunerat
ion, duratio
n and condit
ions of dism
issal of
members is
governed
by
the contract e
ntered int
o between the Com
pany and eac
h member of
the Execut
ive Comm
ittee
respect
to
their function w
ithin the Com
pany.
In principle,
the
Executive Committee
meets
every mont
h. Additional
meetings m
ay be conven
ed at any t
ime
by the Chairm
an of the
or at t
he request of
two of its mem
bers. The
Executive
Committee
w
ill constit
ute a quorum w
hen all member
s have been i
nvited and th
e majorit
y of the member
s
are present or
represented a
t the meeting.
Absent member
s may grant a power
of attorney t
o another
member of the
Executive Com
mittee. M
embers may at
tend the meeting p
hysically
or by telepho
ne or video
conference. T
he absent members
must be notified of
the discussio
ns in their abse
nce by the Chairm
an (or
the Company Secr
etary, if the
has app
ointed a Company
Secretary fr
om among its
members).
The members of the
must
provide the Boar
d of Directors wit
h informati
on in a timely
manner, if
al
l facts and dev
elopments
concerning
the Company
the B
oard of
Directors may
need in ord
er to functio
n as required
and to prop
erly carry
out its duties
. The CEO (or,
in the
event that the
CEO is not abl
e to attend th
e Board of D
irectors'
meeting, the
CFO or,
in the event t
hat the
CFO is not able t
o attend
the Board of
Directors' m
eeting, an
other repres
entative
of the
Committee
) m
ust report at
every ordinar
y meeting of
the Board of Di
rector
s on the material d
eliberat
ions of
the previous m
eeting(s)
of the

The followin
g table sets f
orth the members o
f the Execut
ive Committ
ee who have perfor
med
Chief Exe
cutive Office
r and Chief
Financia
Nand
aDevi
SRL, r
epres
ented
by Ph
ilipp
e De
champ
s
Chief Legal Officer and Corporate Secretary
MC Consult SRL,
represen
ted by Philipp
e Nobels
Chief Huma
n Resources Offi
cer
ImXen
se SRL,
repre
sent
ed by
Fr
ederi
c Lehm
ann
Vice Presiden
t
Clinical Development & Medical Affairs
The following
paragraphs
contain brief
biographies
of each of t
he current mem
bers of the
Executive
Committee or i
n case of legal ent
ities being
a member of the Exec
utive Commit
tee or key mana
ger, their
permanent re
presentativ
es.
Filippo Petti, CEO
and CFO
ad interim
–
r
ef
erence is made to sec
tion “2.2.1.
Composition of
the Board of
Directors”.
Philippe D
echamps (repre
sentativ
e of NandaDevi
SRL)
serves
as Chief Legal O
fficer of t
he Company
and Secretary
to the Board of
Directors
. Philipp
e started hi
s legal car
eer as an assoc
iate in Br
ussels wit
h
the law firm Linklater
s De Bandt from 1994 t
o 1998. Until 2003,
he then served as
Group to assis
t the company in it
s turnaroun
d through seve
ral M&A operations
in Europe,
India and Far
-
East Asia. In 200
3, he took over t
he position of
Legal Direc
tor at Guidant
, the United
States
company
formerly acti
ve in the medic
al devices bus
iness befor
e its acquis
ition by Bos
ton Scientif
ic and Abbot
t
Laboratories
in 2005. At A
bbott, Philippe was
leading the leg
al affairs
of Abbott Vas
cular Internati
onal outsid
e
of the United
States. In 200
8, Philipp
e joined De
lhaize Gr
oup to lead th
e legal and go
vernment af
fairs in
Europe and Asia,
before becom
ing Group Genera
l Counsel and Secr
etary to the B
oard of Directors in 2
015.
In this positio
n, he piloted the leg
al strategy to m
erge Delhaiz
e Group with R
oyal Ahold in July
2016. Sinc
e
December 201
8, Philippe i
s also member of t
he Board of Dir
ectors of Pet
serco SA,
the holding com
pany of
the Tom&Co group.
Philippe h
olds law degre
es from the Univer
sité Catholi
que de Louvai
n (UCL) and Vrij
e
Universiteit Bruss
el (VUB), and a M
aster of Law (LL.M
) from Harvard L
aw School.
Philippe Nobe
ls (representati
ve of MC Consult
SRL
)
serves as Vice Pr
esident of Hum
an Resourc
es of
the Company. He st
arted his career
at Price Wat
erhouse (now
Pricewater
houseCooper
s) as audit
or in 1989.
He also went in rot
ational ass
ignment in Congo d
uring 2 years on co
nsulting missi
ons for the Wor
ld Bank.
In 1995, he joined F
ourcroy as plant
controller
. Then, he join
ed Dow Corning i
n 1997 where he he
ld differen
t
positions in F
inance an
d Human Reso
urces. He l
ed the HR oper
ations in
Europe, bec
ame the HR
manager
for Dow Cor
ning in Belgium
, and HR
Business P
artner for th
e sales and m
arketing f
unctions gl
obally. As
a
member of the sales and m
arketing Lead
ership team
s, he contributed t
o Dow Corning’s ma
jor transform
ation
initiatives t
o increase organiz
ational eff
ectiveness, empl
oyees’ enga
gement & perf
ormance as well a
s
Business results. Mr. Nobels holds a Master’s Degree in Economics from the University of Namu
r.
Frédéric Lehm
ann (represen
tative o
f ImXense SRL)
serves as V
ice President C
linical Deve
lopment &
Medical Affai
rs of the Compa
ny. Dr. Lehma
nn is a physici
an by training,
specialize
d in hematol
ogy and
oncology. Dr
. Lehmann has
extensiv
e experienc
e in oncol
ogy drug dev
elopment s
panning early
to late
phase, includi
ng clinical tr
ial design, t
ranslational r
esearch, r
egulatory inter
actions, and cli
nical risk
management.
He started his
academic c
areer at the L
udwig Instit
ute for Cancer
Research in Br
ussels,
followe
d by a positi
on at the Inst
itute Jules Bordet
. He then moved to t
he European Or
ganization fo
r
Research and T
reatment of Cancer (
EORTC) as
Medical Advisor.
Dr. Lehmann
began his c
orporate career
at GlaxoSmith
Kline, where h
e led the early worldwi
de clinical dev
elopment
program for the Company
’s
cancer vaccin
es and went on t
o lead the res
earch an
d development
incubator
for cance
r

David Gilham
serves the Compa
ny as Chief Sc
ientific O
fficer. Dr.
Gilham obtaine
d his Ph.D f
rom the
University o
f Dund
ee, UK under the superv
ision of Prof
essor Roland W
olf OBE working on cy
tochrome
P4502D6 and Parki
nson’s disease.
In 1996, Dr. Gi
lham was recruited t
o work with Profes
sor Robert Hawki
ns
at the Univers
ity of Bris
tol, UK t
o work on chim
eric antigen r
eceptor (
CAR) T cells
as a part of
the Chimeri
c
Eurocell Euro
pean Programm
e lead by Prof Zeli
g Eshhar. In 1998, the gr
oup moved to the Pat
erson Institut
e
for Cancer Res
earch, Univer
sity of Manc
hester. The group
maintained a st
rong translat
ional focus del
iveri
ng
several clin
ical trials of
CAR T (includi
ng the first
such trial to be ini
tiated in the UK)
while developi
ng a strong
basic research
core activity
including the ATT
ACK European Progr
amme that drew t
ogether colleag
ues
working in T cell ther
apy across Eur
ope. Along with ach
ieving academ
ic independenc
e and promotio
n to
Senior Fellow, Dr
. Gilham took over
the leadership of
the laboratory gro
up in 2009. The group move
d to the
Institute of
Cancer Scie
nces, Univers
ity of Manch
ester based w
ithin the
Manchester
Cancer Res
earch
Centre in 201
5 and Dr. G
ilham was appo
inted Read
er in 2016. I
n September
2016, Dr.
Gilham move
d to
the role of Vic
e President
at Celyad to c
ontinue w
orking upon i
mmune base
d therapie
s for cancer
and
appointed to C
hief Scient
ific Offic
er in May 2020.
Stephen Rub
ino, Ph.D.,
serves the Company as Chief
Business Of
ficer. Dr. Rubino
brin
gs over 30 years
of pharmaceuti
cal leaders
hip experienc
e to the role of
Chief Business O
fficer, wi
th emphasis
in the areas of
business deve
lopment
and licensi
ng, new product
developm
ent, commer
cial operatio
ns, pharmac
eutica
l
strategy and inv
estor relatio
ns. Dr. Rubin
o currently serves
as an independent
board member
of Sermonix
Pharmaceutic
als
and Viracta T
herapeutics.
Dr. Rubino has
also served N
ovartis Pharm
aceutic
als in a wide
range of roles
and therapeuti
c areas, the la
st of which wa
s as Global Head of
Business Dev
elopment and
New Product Mar
keting, res
ponsible for de
veloping an
d building t
he product pip
eline for Novart
is’ Cell &
Gene Therapi
es Unit. Pr
ior to Novart
is, Dr. Rubi
no worked f
or Schering
–
Plough (Merc
k) where his
last role
was head of t
he Global S
olid Tumor
Oncology &
Autoimm
une Business
Unit respo
nsible for
the licens
ing
and launch of
Remicade, as w
ell as the la
unch and comme
rcializ
ation of s
everal global
oncology br
ands.
Rubino has als
o previously
served as Chief
Business & S
trategy Off
icer at Omega Therap
eutics a
nd
Entreprene
ur in Reside
nce at Fort
ress Biotech. He h
as also previ
ously serv
ed as a Direct
or at Canada
-
based Ilkos Thera
peutics Inc
. between 2017 and 2020
and U.S.
-
base
d Sermonix Pharmac
eutical I
nc.
between 2019 and 2
021. Dr. R
ubino receiv
ed his Ph.D. f
rom Weill Cornel
l Universit
y (New York) and hi
s
Master of Business Association from Baruch University (New York).
Charles Morris, P
h.D.,
serves t
he Company as Chief
Medical Off
icer. Dr. M
orris is a medic
al oncologist
with over 20 years
of oncology drug dev
elopment
experience in t
he internatio
nal biotech and
space. Prior
to joinin
g Celyad O
ncology, Dr.
Morris ser
ved as Chief
Medical O
fficer of R
adius Healt
h and
held leadershi
p positions at PsiO
xus Therapeutics,
ImmunoGen Inc an
d Allos Therapeut
ics, where
he
contributed t
o all phases of devel
opment for s
olid and hematolo
gical tumo
r indications,
as well as life
-cycle
management dev
elopment act
ivities for F
OLOTYN (pralatr
exate) while at A
llos. Before ser
ving in these
positions, he w
as Vice Presid
ent of Worldwi
de Clinical Re
search at Cephal
on, Inc., w
here he helped th
e
company achie
ve its firs
t oncology dr
ug approval for
Treanda®
(bendamust
ine). He spent t
he early years
of
his career in v
arious roles
at Astr
aZeneca, where
he signific
antly cont
ributed t
o the worldw
ide developm
ent
of Faslodex (fulv
estra
author
ed multiple pu
blication
s regarding ful
vestrant and br
east cancer, an
d
supported earl
y clinical dev
elopment
activities
for Iressa®
(gefitinib). Dr.
Morris holds a Ba
chelor of Medic
ine,
Bachelor of Su
rgery and Bac
helor of Medic
al Science in Cli
nical Phar
macology an
d Therapeutics
degree
from Sheffield Uni
versity M
edical School in the UK
and is a Member of the Royal Co
llege of Phy
sicians of

2.4
Conflict of Interest of Directors and members of the E
and transactions with affiliated companies
Each
D
ir
ector and mem
ber of t
he
Executive Committee
is encourag
ed to arrange h
is or her per
sonal and
business affa
irs so as to av
oid direct
and indirect
conflicts
of interest
with the Com
pany. T
he Company's
Charter contai
ns specific
procedur
es to deal with pot
ential conf
licts.
2.4.2.
Confli
cts of interest of D
The
Article
7:96
of the
provid
es for a special proce
dure within t
he Board of Directo
rs in the event of a
possible perso
nal financ
ial conflict of
interes
t of one or m
ore
directors w
ith one or mor
e decision
s or
transactions
to be adopte
d by the Board of
Directors. I
n the event of a
conflict of int
erest, t
he director
concerned mus
t inform his or her
fellow director
s of his or her conf
lict of interest
before the Board of
Dir
deliberates an
d takes a decis
ion in the matt
er concerned.
Furthermore,
the conflicted
director may no
t
participate i
n the delib
eration and vot
ing by th
e Board of Dir
ectors on the m
atter t
hat gives rise t
o the potent
ial
conflict of int
erest. The minut
es of the meeting of
the Board of Direct
ors must contai
n the relevant st
atements
made by the conflic
ted director
, as well as a descripti
on by the Board of Dire
ctors of the confl
icting interest
s
and the nature of
the relevant decision or t
ransaction t
o be adopted. T
he minutes must also c
ontain a
justificati
on by the Board of Direct
ors for the decis
ion or transact
ion adopted, and a
description of
the
financial cons
equences ther
eof for
the
C
ompany. The r
elevant minut
es must be incl
uded in the (st
atutory)
annu
al report o
f the Board of Di
rectors.
The
Company
must notif
y the Statutory
Auditor of the conflict
. The Statutory
Auditor must
describe in its
statutory ann
ual audit rep
ort the fina
ncial conseq
uences of
the decision
or transact
ion that gave ris
e to the
This procedure
does not apply to deci
sions or transac
tions in the ordinar
y course of busines
s at customary
2.4.3.
Exi
sting con
flicts of int
erest of members o
f the Board of
Directors
Except as repor
ted hereinaf
ter, as far as
the Company is
aware, none of
the
have a conf
lict of
interest withi
n the meaning of Art
icle
7:96
of the
CCA
which has
not been disclose
d to the Board of Directors
.
Other than pot
ential conf
licts arisin
g in respec
t of compen
sation
-
relate
d matters
, the Company
does
foresee any ot
her potentia
l conflicts of
interest in t
he near future.
In 202
1
, certain m
embers of t
he Board decla
red a conflict
of interest
. The follow
ing declar
ation were mad
e
Excerpt from
the minutes of th
e Board meeti
ng of January
23, 2020
:
“The article
7:96 of the BCA
C provides t
hat “if
a director has,
directly or
indirectly
, a conflict
ing finan
cial
interest in a d
ecision or o
peration to
be decided by t
he board of
directors, h
e has to inf
orm the other dir
ectors
before the deli
beration of the boar
d of director
s.
His declaration, i
ncluding t
he reasons for his conf
licting
financial int
erest, m
ust be recorded in the mi
nutes of the boar
d meeting that
will take
the decis
ion. The
auditor must
also be informe
d. The concerned d
irectors
cannot deli
berate nor vote o
n the concern
ed
Maria Koehler i
nformed the ot
her directors th
at he has a conflict
ing financial
interest in t
he proposed decis
ion
on her remunerat
ion. This dec
laration will
be communicat
ed to the statut
ory auditor of t
he Company an
d
inserted in the ann
ual report 2021 in acc
ordance wit
h the article 7:96 of
the Belgian Code o
f the Companie
s
and Associatio
ns
.
Maria Koehler left
the
and the Boar
d unanimousl
y approved the
payment of 5,0
00 EUR to Mari
a Koehler in c
ompensation
of her signifi
cant scientif
ic and consu
lting servi
ces
rendered to the
CEO and to the Comp
any in additi
on to her Board dut
ies.

Maria Koehler
then came back
to the videoco
nference.”
“The Board dis
cussed the all
ocation of war
rants t
o Board members:
-
Michel Lussi
er (10,000 warra
nts);
-
Hilde Windels (
10,000 warr
ants);
-
Serge Goblet (10,
000 warrant
s);
-
Chris Buyse (1
0,000 warra
nts);
-
Rudy Dekeyser
(10,000 warra
nts)
;
-
Dominic Piscitelli (1
0,000
-
Marina Udier B
lagovic (10,0
00 warrants)
.
The warrants will b
e offered
under the Warr
ants Plan 2019.
Each warrant
will give the right
to its owner to
acquire one n
ew share of th
e Company. T
he exercise
price will be
equal to t
he fair market
value
Company’s sh
ares at the time of t
he offer, this value c
orrespondin
g to the closing pr
ice of the share on
the
day before the
date of the offe
r.
The article 7:
96 of the BCAC
provides that
“if a direct
or has, direct
ly or indir
ectly, a co
nflicting fi
nan
cial
interest in a d
ecision or
operation to
be decided by t
he
B
oard of
irectors,
he has to infor
m the other
director
s
before the deli
beration of the
B
oard of
D
irec
tors. His declar
ation, inclu
ding the reasons
for his conf
licting
financial int
erest, m
ust be
recorded in th
e minutes of
the board me
eting that w
ill take [..
.] the decisio
n. Th
e
auditor must
also be informe
d. The concerned d
irectors
cannot deliber
ate nor vote o
n the concern
ed
Michel Lussi
er informed t
he other direc
tors that he has
a conflicting f
inancial i
nterest in t
he decision
proposed. This
declaration wi
ll be communic
ated to the st
atutory audit
or of the Company and ins
erted in th
e
annual report
in accord
ance with the ar
ticle 7:96 of
the BCAC. Michel L
ussier left
the meeting r
oo
m
and the Board unanim
ously approv
ed the allocati
on of 10,000 warra
nts to Michel Lussie
r. Michel Lussi
er
then came bac
k in the meeting r
oom.
Serge Goblet i
nformed the ot
her direct
ors that he has
a conflict
ing financi
al interest in t
he decisi
on propos
ed.
T
he Chairman t
hanked Serge G
oblet for his decl
aration. This
declaratio
n will be communic
ated to the
statutory au
ditor of t
he Company and
inserted i
n the annu
al report
in ac
cordance
with the art
icle 7:9
6
of the BCAC. Ser
ge Goblet lef
t the meeting
room and the Board u
nanimously a
pproved t
he allocatio
n of
10,000 warrant
s to Serge G
oblet. Serge G
oblet then cam
e back in the meet
ing room.
Chris Buyse inf
ormed the othe
r directors t
hat he has a confli
cting financ
ial interes
t in the decisio
n proposed.
The Chairma
n thanked Chr
is Buyse for
his declarat
ion. This decl
aration wil
l be comm
unicated to t
he
statutory au
ditor of t
he Company and
inserted i
n the annu
al report
in ac
cordance
with the art
icle 7:9
6
of the BCAC. Chris Buy
se left the meet
ing room and the B
oard unanim
ously approve
d the allocati
on of
10,000 warrant
s to Chris B
uyse. Chris B
uyse then came b
ack in the meet
ing room.
Rudy Dekeyse
r informed t
he other dir
ectors that
he has a confl
icting fi
nancial inter
est in the
decisio
n
proposed. The Chairm
an thanked Rudy Dek
eyser f
or his declaration.
This declarat
ion will be communi
cated
to the statut
ory auditor of the Com
pany and insert
ed in the annual re
port
2021
in accor
dance with the art
icle
7:96 of the BCAC. R
udy Dekeyser lef
t the meeting room a
nd the Board una
nimously
approved the all
ocatio
n
of 10,000 warr
ants to Rudy Dek
eyser. Rudy D
ekeyser then
came back i
n the meeting ro
om.
Hilde Windels inf
ormed the other
directors that
she has a conflict
ing financial int
erest in the decis
ion
proposed. The
Chairman than
ked
Hilde Wind
els for her decl
aration. T
his declaration w
ill be communi
cated
to the statut
ory auditor of the Com
pany and insert
ed in the annual re
port
2021
in accor
dance with the art
icle
7:96 of the BCAC. H
ilde Windels left
the meeting room and t
he Board unanimously
approved the all
ocation
of 10,000 warr
ants to Hilde W
indels. Hil
de Windels the
n came back in the
meeting room
.

Maria Koehler
informed the other direct
ors that she has
a conflicting financ
ial interes
t in the decisio
n
proposed. The Chair
man than
ked Maria Koehler
for her dec
laration. T
his declaration wi
ll be communic
ated
to the statut
ory auditor of the Com
pany and insert
ed in the ann
ual report
2021
in accor
dance with the art
icle
7:96 of the BC
AC. Maria Koe
hler
left t
he meeting r
oom and t
he Board unani
mously appr
oved the al
locati
on
of 10,000 warr
ants to Maria K
oehler
.
Mar
ia Koehler the
n came back in t
he meeting room
.
Dominic Piscite
lli
informed th
e other directo
rs that he has a conf
licting financ
ial interes
t in the decision
proposed. The Chair
man thanked Dom
inic Piscit
elli for his declar
ation. This dec
laration wil
l be
communicated
to the statut
ory audit
or of the Compa
ny and ins
erted in the a
nnual repor
t 2021 in ac
cordance
with the arti
cle 7:96
of the BCAC.
Domonic Pis
citelli lef
t the meet
ing room an
d the Board un
animously
approved the
allocation of
10,000 warr
ants to D
ominic Pis
citelli. Domi
nic Pisci
telli then
came back i
n the
Marina Udier inf
ormed the other
directors that
she has a conflictin
g financial int
erest in t
he decision
proposed. Th
e Chairman t
hanked Mar
ina Udier
for her dec
laration.
This declar
ation will
be communic
ated
to the statut
ory auditor of the Com
pany and insert
ed in the annual re
port 2021 in acc
ordance with t
he article
7:96 of the BCA
C. Marina Udi
er left the me
eting room an
d the Board u
nanimously ap
proved the a
llocatio
n
of 10,000 warr
ants to Marina
Udier. Marina
Udier then cam
e back in the meet
ing room
.
”
Excerpt from
the minutes of th
e Board meeti
ng of August 4, 202
1:
“The Board acknowl
edged the res
ignation of M
aria Koehler as m
ember of the Board wit
h effectiv
e date as
The Board disc
ussed the warr
ants allocat
ed to Maria Ko
e
The article 7:
96 of the BCA
C (Belgian
Company Cod
e of Compani
es and Ass
ociations
) provides that
“if a
director has,
directl
y or indire
ctly, a conf
licting fin
ancial int
erest in a d
ecision or o
peration t
o be decide
d by
the board of di
rectors,
he has to inf
orm the other
directors b
efore the del
iberatio
n of the board of
directors
.
His declaratio
n, includi
ng the reasons for
his conflicting f
inancial inter
est, must be rec
orded in the minut
es
of the board m
eeting that wi
ll take [.
..] the decisio
n. The audit
or must als
o be informe
d. The concer
ned
directors ca
nnot deliberat
e nor vote on t
he concerned
decisions”.
Maria Koehler i
nformed the ot
her directors th
at he has a conflict
ing financia
l interest in t
he decision propo
sed
since it is envisage
d to waive the condi
tion of presence im
posed by the warr
ants plans of
the Company in
favor of Mrs.
Koehler. This wa
iver would c
oncern the war
rants that
have been alloc
ated to Mrs
. Koehler an
d
that are not already v
ested. This decl
aration will be c
ommunicat
ed to the statut
ory auditor of t
he Company
and inserted in
the annual re
port 2021 in acc
ordance with t
he articl
e 7:96 of the BCA
C. Maria Koehl
er left
The Board exp
ressly wai
ved the condit
ion of prese
nce impos
ed by the w
arrants plans
of the Comp
any in
favor of Maria Koeh
ler, meani
ng that Maria Koeh
ler will be allow
ed to exercis
e all her warrant
s during the
exercise perio
ds provided by
the plans, even if she s
topped his profe
ssional acti
vities in fav
or of the
Company on August
5, 2021, and ev
en if her war
rants have not
been fully v
ested.
The Board decide
d to grant power
of attorney t
o Adrien Lanotte and/
or to any other at
torney from
the law
firm Harvest
, located at 100 Boul
evard du So
uverain, 1170 B
russels, eac
h with authoriz
ation to act on hi
s
own and
with pow
er to sub
-
del
egate, to s
ign and fi
ll in all docum
ents and t
o take all
necessary st
eps
regarding pu
blic administ
ration and th
ird parties,
with a view
to proceeding
to all requir
ed formaliti
es for the
implementati
on of the above
-
a
dopted resolut
ions and their
publishing in t
he annexes to t
he Belgian Offic
ial
Journal as well
as for the rev
isions with Cros
sroads Bank
for Enterpr
ises and other p
ublic bodies
.
Maria Koehler
comes back to t
he videoconf
erence.”

Excerpt from
the minutes of th
e Board meeti
ng o
f
October
7, 202
1:
“The Board dis
cussed the all
ocation of war
rants t
o Board members:
-
Michel Lussi
er (10,000 warra
nts);
-
Hilde Windels (
10,000 warr
ants);
-
Serge Goblet (10,
000 warrant
s);
-
Chris Buyse (1
0,000 warra
nts);
The warrants will b
e offered under t
he
Warrants Pl
an. Each warrant
will give the right
to its owner to
acquire one n
ew share of th
e Company. T
he exercise
price will be
equal t
o the fair mar
ket value of
the
Company’s sh
ares at the time of t
he offer, this value c
orrespondin
g to the closing pr
ice of the share on
the
day before the
date of the offe
r.
The article 7:
96 of the BCAC
provides that
“if a direct
or has, direct
ly or indir
ectly, a co
nflicting fi
nancial
interest in a d
ecision or o
peration to
be decided by t
he board of
directors, h
e has to inf
orm the other dir
ectors
before the deli
beration of the boar
d of director
s. His declaration,
includin
g the reasons for his c
onflictin
g
financial int
erest, m
ust be recorded in t
he minutes of
the board m
eeting that
will take [.
..] the decis
ion. Th
e
auditor must
also be informe
d. The concerned d
irectors
cannot deliber
ate nor vote o
n the concern
ed
Michel Lussi
er informed t
he other direc
tors that he has
a conflicting f
inancial i
nterest in t
he decision
proposed. This
declaration wi
ll be communic
ated to the st
atutory audit
or of the Company and ins
erted in th
e
annual report
in accord
ance with the ar
ticle 7:96 of
the BCAC. Michel
Lussier lef
t the meeting r
oom
and the Board unanim
ously approv
ed the allocati
on of 10,000 warra
nts to Michel Lussie
r. Michel Lussi
er
then came bac
k in the meeting r
oom.
Serge Goblet i
nformed the ot
her direct
ors that he has
a conflict
ing financi
al interest in t
he decisi
on propos
ed.
The Chairman t
hanked Serge G
oblet for his
declaration. T
his declaratio
n will be communic
ated to th
e
statutory au
ditor of t
he Company and
insert
ed in the annu
al report
in ac
cordance
with the art
icle 7:9
6
of the BCAC. Ser
ge Goblet lef
t the meeting
room and the Board u
nanimously a
pproved t
he allocatio
n of
10,000 warrant
s to Serge G
oblet. Serge G
oblet then cam
e back in the meet
ing room.
Chris B
uyse inform
ed the other
directors that
he has a conflic
ting financia
l interest
in the decision pr
oposed.
The Chairman
thanked Chr
is Buyse for
his declarat
ion. This decl
aration wil
l be comm
unicated to t
he
statutory au
ditor of t
he Company and
inserted i
n the
annual repor
t
in accorda
nce with the
article
7:96
of the BCAC. Chris Buy
se left the meet
ing room and the B
oard unanim
ously approve
d the allocati
on of
10,000 warrant
s to Chris B
uyse. Chris B
uyse then came b
ack in the meet
ing room.
Rudy Dekeyse
r informe
d the other dir
ectors that
he has a confl
icting fi
nancial int
erest in t
he decisio
n
proposed. The Chairm
an thanked Rudy Dek
eyser f
or his declaration.
This declarat
ion will be communi
cated
to the statut
ory auditor of the Com
pany and insert
ed in the annual
in accordance wit
h the article
7:96 of the BCAC. R
udy Dekeyser lef
t the meeting room a
nd the Board una
nimously appr
oved the allocat
ion
of 10,000 warr
ants to Rudy Dek
eyser. Rudy D
ekeyser then
came back in the m
eeting roo
m.
Hilde Windels informe
d the other directors
that she has a conf
licting financi
al interest
in the decision
proposed. The
Chairman than
ked Hilde Win
dels for her dec
laration.
This declarat
ion will be comm
unicated
to the statut
ory auditor of the Com
pany and insert
ed in the annual r
eport 2021
in accordance wit
h the article
7:96 of the BCAC. H
ilde Windels left
the meeting room and t
he Board unanimously
approved the all
ocation
of 10,000 warr
ants to Hilde W
indels. Hil
de Windels the
n came back in the
meeting room
.
Dominic Piscitelli
inf
ormed th
e other directo
rs that he has a conf
licting financ
ial interes
t in the decision
proposed. The Chair
man thanked
for
h
declar
ation. This declar
ation will
be

communicated
to the statut
ory audit
or of the Compa
ny and ins
erted in the a
nnual repor
t
with the article
7:96 of the BCAC.
left the meetin
g room and the Board un
animousl
y
approved the
allocation of
1
0,000 warr
ants to
then came b
ack in t
he
Marina Udier
informed the other dir
ectors that s
he has a conflictin
g financial inter
est in the dec
ision
proposed. Th
e Chairman t
hanked Mar
ina Udier
for her dec
laration.
This declar
ation will
be communic
ated
to the statut
ory auditor of the Com
pany and insert
ed in the annual re
port
2021
in accor
dance with the art
icle
7:96 of the BCA
C.
Marina Udier
left
the meet
ing room and the B
oard unanim
ously approv
ed the alloc
ation
of 10,000 warr
ants to
Marina Udier
.
Marina Udier
th
en came back in t
he meeting room
.”
To date, no rel
ated party t
ransaction
involving t
he Company’s
the mem
bers of the Exec
utive
Committee
,
ex
cept section
2.4.3 above
,
has
been discl
osed to the Comp
any.
2.4.5.
T
ransaction
s with af
filiates
The
7:
97
prov
ides
for a spec
ial proced
ure that applie
s to intra
-
gro
up or relat
ed party
transactions
with affili
ates. The pr
ocedure wi
ll apply to d
ecisions or t
ransacti
ons between t
he Company an
d
affiliates of t
he Company that ar
e not a subsidiary of t
he Company. It wil
l also apply t
o decisions or
transactions
between any of
the Company’
s subsidiari
es and such subs
idiaries
’ affiliates
that are not
a
subsidiary of t
he Company.
Prior to any su
ch decisio
n or transacti
on, the Boar
d of Directors
of the Company
must appoint
a speci
al
committee co
nsisting
of three ind
ependent dir
ectors, assi
sted by on
e or more inde
pendent exp
erts. Thi
s
committee
pro
vides the Boar
d of Directors w
ith a written report
giving the m
otives for the decis
ion of th
e
envisaged op
eration, address
ing at least t
he following el
ements: t
he nature of the decisio
n or the operati
on,
a descriptio
n and an estimat
ion of the equ
ity conseq
uences, a des
cription of t
he eventual ot
her
consequences,
the advantag
es and
res
ulting therefr
om for the
C
ompany,
as the case maybe
.
The committee
puts the propos
ed decision or
operation in th
e context of t
he strategy of t
he
C
ompany an
d
determines if
it causes any prejudic
e to the
C
ompany,
if it is compensate
d by other elements
of that strat
egy,
or if it is manif
estly abusiv
e. The remark
s of the expert
are integrate
d in the opinio
n of the commit
tee.
The Board of Director
s must then t
ake a decision, t
aking into acco
unt the opinion of
the committee.
Any
deviation from
the committee’
s advice must be ex
plained. Di
rectors who hav
e a conflict of
interest are no
t
entitled to p
articipate
in the delib
eration and
vote. The com
mittee’s a
dvice and the
decision of t
he Boar
d of
Directors must
be communicat
ed to the Company
’s Statutory
Auditor, who must
render a separate opi
nion.
The conclusio
n
of the commit
tee, an excerpt f
rom the minutes of
the Board of Direct
ors and the opin
ion by
the Statutory
Auditor must be
included in the
(statutor
y) annual repor
t of the Board of Di
rectors
.
The procedur
e does not app
ly to decisi
ons or transac
tions in t
he ordinary
course of busi
ness at cust
omary
market conditi
ons, and trans
actions or decis
ions with a v
alue of less than 1% of t
he consolidated net ass
ets
2.4.6.
Code of Business
Conduct and Ethics
In 2015, the Co
mpany adopte
d a Code of Bus
iness Conduc
t and Ethic
s, or the Cod
e of Conduct,
applicable
to all of its emp
loyees, mem
bers of its
and d
irectors.
It has been upd
ated on Octob
er
5,
2018. The Code of
Conduct is availab
le on the Compan
y’s website
at
https://
www.celyad.co
m/en/inv
estors/corp
orate
-
gov
ernance
The
A
udit
C
omm
ittee is respons
ible for
overseeing t
he Code of C
onduct and is r
equired t
o approve a
ny waivers of
the Code of
Con
duct for
employees, me
mbers of its
and director
s.

On June 17, 2
013, the Bo
ard of the C
ompany defi
ned specif
ic rules to p
revent th
e illegal use of
insid
e
information by
board memb
ers, shareh
olders, m
anagers and
em
ployees or
the appeara
nce of such us
e
(“the Market Abuse Policy”). The Market Abuse Po
l
icy is regularly reviewed
Directors and i
s availabl
e on the Company
’s website.
The Policy a
pplies to all
holder
s of inside i
nformation.
An
insider c
an be giv
en access to i
nside infor
mation
within the sco
pe of the n
ormal perf
ormance of
his or her duti
es. The insider
has the stri
ct obligat
ion to tre
at
this informatio
n confidenti
ally and is not all
owed to trade financ
ial instrum
ents of the Company t
o which this
inside inform
ation relat
es.
In accordance wit
h art 25bis §1 of the law of
August
2002 and the EU R
egulation 596/
2014 of April
2014 on market
abuse (the “MAR”)
, the Company has es
tablished a lis
t of persons in t
he Company who
,
based on an employme
nt or servic
e agreement,
have contract
ed with the Company a
nd have during
the
course of their
duties acc
ess to insid
e informati
on directly
or indirectly
. This list is up
dated re
gularly an
d
remains at the di
sposal of the
FSMA for a peri
od of 5 years.
2.5
Corporate Governance Code
The Company'
s Board of Dir
ectors com
plies with the
principles of the
from the follow
ing princip
les:
•
Remuneration i
n company’s s
hares (pri
nciple 7.6):
as per applic
able laws,
the Co
meet the legal
requireme
nts to procee
d with a shar
es buy
-
bac
k and, con
sequently does
not
treasury shares
,
and therefore, is
not able to grant
remuneratio
n in company’s
shares;
offer
indep
endent
directors
may be allocated a fixed num
ber of
subscript
ion rights
(warrants)
of warrants
is not relate
d to any performa
nce cr
As further
detailed
in the Compan
y’s Remunerati
on Policy,
this allocation
is a
imed at
h
ighly skill
ed non
-
executive
dir
ectors in a hig
hly dynami
c and competiti
ve market
;
•
Absence of minim
um detention of
shares (princi
ple 7.9):
the Com
pany has not f
ixed any minimum
threshold for t
he detentio
n of shares by t
he members of t
he Executive Com
mittee, sinc
e the
Company does
not own treas
ury shares an
d does not hav
e the poss
ibility
to offer shares
for free
.
However,
the
m
embers of the Ex
ecutive Commit
tee
hold
s
ubscription right
s (warrants
) on the
Company’s sh
ares as describ
ed in the
•
No clawback (
principle
7.12):
at t
he date of thi
s report, t
he Company has
not adopt
ed any clawb
ack
provision to clai
m variable remun
eration from
the Executive Com
mittee members
, given th
e
practice of t
he industry i
n which th
e Company oper
ates and th
e difficulti
es to recrui
t in this
The Company has
not adopte
d a diversity po
licy. The tale
nts market is
particular
ly tense a
nd dynamic i
n the
biopharmace
utical indus
try and dev
eloping a
diversity pol
icy adjus
ted to this
fast
-
changing envi
ronment w
as
not deemed to be t
he best
to meet the Company
’s challen
ges in human reso
urces. O
ver the past
years, the Com
pany has suc
cessfully ac
hieved a broad degr
ee of dive
rsity from
a gender, citiz
enship,
expertise an
d education
al backgroun
d perspectiv
e at the Company’
s Board of Dir
ectors, Exec
utive
Committee, Ma
nagement and
staff level
s.
T
he Company
has attr
acted talent
s from variou
s countries whi
ch
reflects the Co
mpany’s inter
national f
ootprint t
o support the C
ompany’s str
ategy.
At the Board of Dir
ectors, the Comp
any complies wit
h Belgian law
on gen
der with at leas
t one third of the
members who ar
e from
a different gend
er. One Board me
mber is Canad
ian, three are Am
ericans,
one is

At the Executiv
e Committee,
two members a
re Americans
, one is Englis
h, and
three
are f
rom Belgium
. The
Company will p
ursue its eff
orts to increas
e the female pr
esence at the E
xecutive Comm
ittee.
The
Managem
ent team is co
mposed of 16
members, whe
re the Compan
y counts 43.7
% (7) of female
and
56.3% (9) of mal
e. Those ma
nagers or dir
ectors have dif
ferent natio
nalities
(from Belgiu
m, Mexic
o, and the
US).
Regarding the
employees not
included ab
ove
the Compa
ny records
53
% fe
male employee
s and
47
% mal
e
In accordanc
e with the C
C
G
, the Boar
d of Direct
ors of the C
ompany wil
l review
its Charte
r from tim
e to time
and make such c
hanges as it deems nec
essary and appr
opriate.
The Charter,
together wit
h the Company’s
articles of asso
ciation, is
available on the Company
's website (
www.celyad.com
) and can be obtained free
of charge at th
e registered off
ice of t
he Company.
The
remun
eration pol
icy of the Com
pany
(the “Policy”)
has bee
n approved
at the shareho
lders meetin
g of
The
Policy is e
stablished to b
e competitiv
e in the (empl
oyment) mar
kets in which t
he Compa
ny operates,
mainly the Un
ited States an
d Europe. T
he approach tak
en by the Comp
any is to apply
a remuner
ation poli
cy
which is overa
ll balanced
and allows tai
loring indivi
dual remun
eration p
ackages to ens
ure a fair and
competitiv
e remunerat
ion for the (j
ob)market
in which our k
ey persons oper
ate. The Company
believe
s
this
adds to the long
-
t
erm value cr
eation for all o
ur stakehold
ers.
As a clinical
-
stage biotechnol
ogy company, the Comp
any aims at ac
hieving a strat
egy involving disc
overing,
developing,
test
ing and event
ually com
mercializin
g (potential) pr
oduct candi
dates. Succe
ssful
implementati
on of this s
trategy requires a
n intense lo
ng
-
term eff
ort of highly qualif
ied persons.
As such, this
Policy is aim
ed at attrac
ting and retai
ning hig
hly qualifi
ed persons f
or execut
ive and non
on our Board
of Director
s as well
as executi
ve manageme
nt and to mot
ivate them t
o contribut
e to our l
ong
-
2.6.2.
Remuneration of t
he Board of Direct
ors
The
P
olicy is aimed at attracti
ng n
on
-
executiv
e directors
with the most
relevant skil
ls, knowledg
e and
expertise in a h
ighly competit
ive and quickly
evolving in
dustry.
The
P
olicy will help t
he Company at
tract an
d
retain a divers
e and internati
onal team of non
-
executive directors, striki
n
g a balance betwee
n scientific
,
financial, o
perational a
nd strategic
contrib
utions, promot
ing an open,
fair, sus
tainable and eq
uitable
company culture, driven by success.
The remunerati
on of the non
-
execut
ive Director
s is determined by
the
S
eeting upon proposal
of the Board of
Directors bas
ed on a recommend
ation from
the Nominati
on and Remuner
ation Committ
ee.
The Nominatio
n and Remuner
ation Commit
tee benchmarks
non
-
executive
Directors'
compensat
ion against
peer companie
s to ensure that
it remains fair and c
ompetitive.
The Directors’ r
emunerations
are therefor
e
The
P
olicy is bas
ed on the follow
ing fixed com
ponents:

(a)
fixed fee, consis
ting of a base fee an
d an addition
al fee if the non
-
ex
ecutive di
rector i
s the
Chairman of the Boar
d or any of its
C
ommittees or
if the non
-
irector is
a member of a
The remunerat
ion of non
-
ex
ecutive Dir
ectors does not
contain any
variabl
e part and is not base
d on any
As the Company has
no distributa
ble reserves,
it does not meet the leg
al requireme
nts to proceed to a
shares buy
-
b
ack, theref
ore does not own t
reasury shar
es and is then c
urrentl
y unable to g
rant shares to t
he
non
-
executiv
e directors as
part of
their remunerati
on. This is a dev
iation from pr
inciple 7.6 of
the CCG.
The fixed fee of
non
-
executive
directors cons
ists of
:
(a)
fixed annual
fee (retainer
) of 18,000 EUR (
36,000 EUR for t
he Chairman of
the Board), includin
g
the four annual
, ordinary Bo
ard meetin
gs;
(b)
s
upplemental f
ixed fee of
3,000 EUR (5,
000 EUR for
the Chairma
n of the Boar
d) for the
participatio
n to extraordinar
y Board meeti
ngs of more than 2 hours, and 1,
500 EUR (2,500
for the
Chairman of th
e Board) for
t
he partici
pation to extr
aordinary
Board meeting
s of less than 2 hour
s;
(c)
A
supplement
al fixed ann
ual fee (reta
iner) of 15,
000 EUR for m
embership
of each
C
the Board of Di
rectors, inc
reased by 5,0
00 EUR for the
hairmanship of
such
C
(d)
An
extraordin
ary fee of €3,
000 for
specific a
ssignments t
o a non
-
executiv
e director
, on request
of
the CEO and with pr
ior approval of
the Board of Di
rectors.
The Board fee
s are paid in quart
erly install
ments at the end of
each subsequ
ent calendar
quarter.
The Company will als
o reimburse out
-
pocket
expenses (s
uch as, without lim
itation, trav
el, meals an
d
lodging expens
es) incurr
ed by directors
in direct
relation wit
h their Board d
uties.
In deviation fr
om the princi
ple 7.6 of t
he CCG, the B
oard has determi
ned that the gr
ant
of war
rants to non
-
executive or in
dependent dir
ectors i
s in the best int
erest of the Com
pany to att
ract and retain h
ighly skille
d
directors in a
very dynamic
and competit
ive envir
onment. The gr
ant of warrant
s is a commonly
used
remuneratio
n instrument in t
he sector in which t
he Company oper
ates, in particul
ar in the United St
ates
where the Co
mpany is activ
e. In addit
ion, the Compa
ny is not e
ntitled to
own treasury s
hares
and is currentl
y unable to off
er any remune
ration in shar
es. Finally
, the grant
of warra
nts provides a
n
attractive add
itional remu
neration wi
thout impact
ing the Company’
s cash. Wit
hout this possi
bility, t
he
Company woul
d be subject to a consider
able disadv
antage compar
ed to competit
ors offering warr
ants to
their non
-
exec
utive di
rectors.
The grant of war
rants is not li
nked or subjec
t to any perfor
mance condit
ions and c
onsequently,
does not
qualify as varia
ble remuner
ation.
The warrants a
re usually iss
ued by decis
ion of the Boar
d of Directors
within the f
ramework of
the authoriz
ed
capital (but c
an also be i
ssued by d
ecision of t
he Sharehold
ers’ Meeti
ng). The warr
ants are then
offered t
o
non
-
executiv
e directors
by decision
of the Board
of Direct
ors upon rec
ommendat
ion of the Nomi
nation and
Remuneration
Committee.
Conflict of
interest pr
ocedure app
lies to such dec
ision of the B
oard. Each warr
ant
gives its holde
r the right (but
not the obligat
ion) to subscri
be, under the exer
cise condit
ions, during th
e
exercise peri
ods and agains
t payment of the ex
ercise price,
to one Compa
ny’s share

Company’s wa
rrants are gran
ted for a limit
ed term. T
his term is determin
ed by the Board of
Directors, in
compliance wit
h the CCA,
with a max
imum of ten ye
ars. The w
arrants ha
ve a vesting
period of min
imum
three (3) years and may
be exercise
d to the extent vest
ed. Shares obtained t
hrough the exerci
se of warrant
s
are freely trans
ferrable.
The exercise pr
ice is equal to the f
air market value of t
he Company's shares at
the time of the off
er. This
value is determ
ined by the Board of
Directors
and corresponds
to either th
e closing price
of the Company
's
share on the day befor
e the date of t
he offer or the average of t
he thirty (30) calend
ar days precedin
g the
date of the
o
ffe
r of the closing
price of the Com
pany's Share
.
The warrants
can be immedia
tely exercis
ed
by the be
neficiaries i
n the followin
g situation
s:
(a)
Share c
apital i
ncrease in ca
sh without s
uspension
of the prefer
ential right
s of the exist
ing
(b)
Tak
eover bid on t
he shares
of the compan
y as of the
announcement
of the publ
ic offer
by the
FSMA;
(c)
Change of contr
ol on the company;
(d)
Conclusion of a “
strategic par
tnership” wi
th an important
industrial
actor, activ
e in the life
sector, and if t
he “strategic p
artnership”
is qualified as
such by the bo
ard of director
s.
For further det
ails on the t
erms and cond
itions of o
ur warrants
plans, we ref
er to the plans
available on
our
website and as
may be amended fr
om time to tim
e.
2.6.2.3
Contract
terms and conditions
The
d
irect
ors' mandat
e may be terminat
ed "ad nutum" (at
any time) without
any form of
There is no sp
ecific agre
ement betwe
en the Compa
ny and non
-
ex
ecutive di
rectors whic
h waives or
restrains
the right of the
Company to ter
minate “ad nut
um” (at any ti
me) the mandate
s of the direct
ors.
The Company
has signed
an engag
ement lett
er consisten
t with the ter
ms of this Polic
y.
2.6.3.
Remu
neration o
f the Executiv
e Committee
The Company’s
remuneration
P
olicy for the mem
bers of its Ex
ecutive Commit
tee is aimed at
attractin
g,
motivating,
and retainin
g top talents
in a very
competitiv
e and inter
national e
nvironment
to deliver
our
strategic and
operation
al objectives
. The Comp
any’s aim is
therefore t
o be competit
ive against
peer
companies in it
s markets,
to incentiviz
e performance a
nd not to discr
iminate on any
manner
The remunerati
on
P
olicy is dr
iven by the em
ployees’ and th
e
C
ompany’s p
erformance.
The remunerat
ions
are based on mark
et benchmar
ks.
The remunerati
on of the members
of the Executive Comm
ittee is deter
mined by t
he Board of Directors
based
on recommendat
ions made by
the Nominatio
n and Remunerat
ion Committee,
further to a recomm
endatio
n
made by the CEO t
o the Nomination and Re
muneration Co
mmittee (ex
cept where his o
wn remunerati
on is
The Nominati
on and Remun
eration Comm
ittee takes
into consider
ation t
he employment
conditions
of
employees an
d ensures that
the remuner
ation of the Exe
cutive Committ
ee remains pr
oportionat
e to the
remuneratio
n of the employees,
taking into cons
ideratio
n the degree of r
esponsibilit
y of the Execut
ive
Committee
e members of E
xecutive Comm
ittee and em
ployees’ rem
unerations
are market driv
en.
For employees
, the
C
ompany’
s remuneratio
n is based on an in
dependen
t benchmark done by
a reputed

internation
al firm. T
he benchmark inclu
des data point
s from biotec
h, medium and lar
ge pharm
aceutical
companies and
is performed o
n an annual ba
sis.
The remunerati
on of the Exec
utive Committ
ee is based on t
he followi
ng fixed and var
iable compo
nents:
(b)
Varia
ble annual
cash remuner
ation;
The structur
e of the remu
neration of
Executive Com
mittee
members con
sists in an ap
propriat
e balance
between fixed
and variable remun
eration. The nat
ure and magnitu
de of the variable r
emuneration
is
structured t
o align the interest
s of the Executiv
e Committee m
embers with the sus
tainable value
-
objectives of t
he Company.
Pension and o
ther fringe ben
efits complet
e the remuner
ation packag
e in line
with market prac
tice. The actual
relative wei
ghts of the component
s of the remunerat
ion package depe
nds
on the achievem
ent of the perform
ance criteri
a, the role and the loc
ation of each Ex
ecutive Commit
tee
member as sp
ecified below,
and aims at
ensurin
g remunerat
ion packages
that are comp
etitive and i
n line
Each member of the E
xecutive Commit
tee is entitled to a bas
e fixed remunerat
ion designed t
o fit
responsibilit
ies, r
elevant exper
ience, and com
petences, in l
ine with mark
et rates f
or equivalent pos
itions.
Variable Annu
al Cash Remuner
a
The base amo
unt of the v
ariable r
emuneration is
based on
the Company’
s performa
nce and the i
ndividua
l
performance o
f the
E
ommittee mem
bers measured ag
ainst the individ
ual and Compan
y’s
For the CEO, the varia
ble remuner
ation is based on 75%
of the Company perf
ormance and 25% of
individua
l
performance.
For the other mem
bers of the Ex
ecutive Comm
ittee, the varia
ble remuner
ation is base
d on
50% of Company per
formanc
e and 50% of indivi
dual perf
ormance.
The variable c
ompensatio
n repres
ents 30% of
the fixed co
mpensation at
target for
non
to 40% of the fixed com
pensat
ion at target for US
-
based members an
d 45% of the fixe
d compensatio
n at
target for the C
EO. Those targ
et percentages
may be multipl
ied by a factor fr
om 0% to 200%,
depending on
the individua
l performanc
e.
The Variable Annu
al Cash Remunerat
ion is therefor
subject to an absolute cap of 200
% of the fixed
compensatio
n, in line with pr
inciple 7.
10 of the CCG.
The Company objec
tives are determ
ined annually by
the Board of Direct
ors, ultim
ately at the start
of the
period in whic
h the incentiv
e may be earne
d.
Th
e individual
performance of
each member of t
he Executive Comm
ittee is deter
mined by an
annual
assessment be
tween the indiv
idual and the CEO
(or, for the CEO
, between the CEO
and the Chairma
n of
the Board). I
t consists of SM
ART (Specif
ic, Measur
able, Actiona
ble, Realis
tic, Time driv
en) and chall
engin
g
objectives. T
hose individual
objectives
are aligned and consis
tent with the Company
’s strategic ob
jectives
.
The performan
ce assessme
nt leads to a sc
ore that will def
ine the overall
individual p
erformanc
e and is

determined by
the Board of Direct
ors upon recomme
ndation of
the Nominatio
n and Remunerat
ion
The Company’s
objectives ar
e aligned wit
h the Missi
on and the Vison of
the Company
and contrib
ute to the
Company’s str
ategy, the enhanc
ing of patient
s’
being and life an
d sharehold
ers value cr
eation, while
maintaining a s
olid cash pos
ition. The Com
pany’s object
ives are
t
ypically
b
ased on a combin
ation of vari
ous
•
Clinical Produc
t Testi
ng and Developme
nt
-
Clinical trial ac
tivity
(oper
ational and m
edical)
•
Pre-
Clinical Product
Develop
ment
-
Clinical (Prot
ocol Developme
nt)
-
Regulatory
(IND/CT
A submission)
-
Manufactur
ing (Clinic
al Proces
s Development
)
-
Quality As
sessment and Q
uality Cont
rol
(CMC)
-
Pre-
clinical Pr
oduct and Pl
atform Dev
elopment
-
Target ide
ntificati
on and validat
ion
-
Intellect
ual proper
ty creation
-
Peer revi
ewed and corpor
ate publicati
ons
-
Investors
relations/m
edia
•
Company funding,
cash runway and t
he efficient us
e of financial a
nd non
•
External part
nership devel
opment and c
ollaboration
The Company’s
and the individua
l’s perform
ances are asses
sed in the first quar
ter of each cale
ndar
the Board of D
irectors. T
he variable c
ompensat
ion is pai
d to the mem
bers of the Ex
ecutive Com
mittee i
n
the first quart
er of the fol
lowing year up
on decision
of the Board of Dir
ectors.
In deviation fr
om principle 7.12 of
the CCG, there is no possi
bility for the Com
pany to reclaim t
he variable
Each member
of the Executiv
e Committee
who is an emp
loyee of the C
ompany is ent
itled to t
he participat
ion
to pension plan
s with defined
contributi
ons.
For Belgium
-
b
ased members
of the Executi
ve Committee,
defined co
ntributions
pensions are p
aid in a
Group Insuran
ce plan which al
so includes
a health insur
ance and a lif
e insurance.

US
-
based member
s of the Exec
utive Comm
ittee partici
pate to an empl
oyer
-
-
pension
acco
unt defined i
n subsecti
on 401(k) of
the Internal Rev
enue Code dis
ability i
nsurance and l
ife
The members of
the Executiv
e Committee w
ho are engage
d through servi
ces or cons
ulting agreem
ents are
not entitled to a group ins
urance pla
n, or to an
sponsored d
efined
-
cont
ribution pens
ion accoun
t
defined in subs
ection 401(k)
of the US Int
ernal Revenue Co
de, or to a heal
th insurance p
lan.
Each member of
the Executiv
e Committee is
entitled to sev
eral fringe b
enefits which m
ay in
(c)
I
f required by t
heir specific soci
al or tax status
, a housing allowance
, tax advisory s
ervices,
relocation al
lowances
, schooling all
owances;
(d)
The reimburse
ment of other e
xpenses relat
ed to their
responsibi
lities in the
company.
On an excepti
onal basis an
d depending
on the employ
ment market
conditions, a s
ign on bonus m
ay be
granted when a mem
ber of the Executiv
e Committ
ee is hired. The s
ign on bonus is appr
oved by the Boar
d
of Directors ba
sed on recom
mendations m
ade by the Nomi
nation and Rem
uneration C
ommittee
The Company m
ay from time
to time offer
to the memb
ers of the
E
ommittee t
o participate t
o a
warrants pla
n at the dis
cretion of t
he Board of
D
irectors.
The warr
ants are usu
ally iss
ued by decis
ion of
the
Board of Direct
ors withi
n the framew
ork of the aut
horized cap
ital (but c
ould also b
e issued by
decision of t
he
Shareholders
’ Meeting).
The warrants are then off
ered to each member
of the Executi
ve Committee by
decision of the Boar
d of Director
s upon recommend
ation of the Nom
ination and Remune
ration Commit
tee.
Each warrant g
ives its hold
er the right
(but not the ob
ligation)
to subscribe
, under the ex
ercise co
nditions
,
during the exer
cise periods
and against
payment of t
he exercise pric
e, to one Com
pany’s share.
The number of
warrants of
fered to eac
h of the b
eneficiar
ies is freely
determined
by the B
oard of Dir
ectors,
acting upon th
e recomme
ndation of th
e Nominat
ion and Re
muneration C
ommittee.
The number of
warrant
s
is based on a benchmar
king exerc
ise regula
rly performed to ens
ure that the grant
s are competit
ive and in
line with marke
t practice.
When the offer
of warrants i
s based on the i
ndividual p
erformanc
e of the member of
the Executi
ve
Committee, t
he performanc
e scores range f
rom 1 (under
performing) t
o 5 (exceeding
performanc
e):
(a)
f t
he performance scor
e is 1, the numb
er of warrants
is zero;
(b)
f t
he performanc
e score is 2,
the number of
warrants is m
ultiplied by
a factor bet
ween 50% t
o 90%;
(c)
I
f the performanc
e score is 3, t
he number of warr
ants is mul
tiplied by a fac
tor of 100%;
(d)
f t
he performanc
e score is 4,
the number of
warrants is m
ultiplied by
a factor bet
ween 100% a
nd
(e)
f the performanc
e score is 5, t
he number of warr
ants is multipl
ied by a fact
or between 125%
and
In principle, t
he performanc
e score is base
d on an assessm
ent of the indivi
dual perf
ormance over on
e year.
Yet, the vest
ing period of mi
nimum thr
ee (3) years ap
plied on t
he warrants, w
hose value is
notably imp
acted
by the perform
ance of the E
xecutive C
ommitt
ee, implies th
at the Compan
y complies wit
h a long term
view
for a major port
ion of the varia
ble remuner
ation of the mem
bers of the E
xecutive Comm
ittee.

Under our incent
ive plans, wa
rrants are gran
ted for a limited t
erm. This t
erm is determined by t
he Board of
Directors, in co
mpliance w
ith the provisio
ns of the
with a max
imum of ten years.
The warrants hav
e a
vesting perio
d of minimum three (
3) years and may be e
xercised to t
he extent vested.
Shares obtain
ed
through the ex
ercise of warr
ants are fr
eely transfer
rable.
The exercise pr
ice is equal to the f
air market value of t
he Company's shares at
the time of the off
er. This
value is determ
ined by the Board of
Directors
and corresponds
to either th
e closing price
of the Company'
s
share on the day befor
e the date of t
he offer or the average of t
he thirty (30) calend
ar days precedin
g the
date of the
o
ffe
r of the closing
price of the Com
pany's Share
.
The warrants
can be immedia
tely exercis
ed by the benef
iciaries in t
he following s
ituations
:
(a)
incr
ease in c
ash without
suspension
of the prefer
ential right
s of the exis
ting
(b)
Tak
eover bid on t
he shares
of the compan
y as of the
announcement
of the publ
ic offer
by the
FSMA;
(c)
Change of contr
ol on the company;
(d)
Conclusion of a “
strategic par
tnership” wi
th an important
industrial
actor, activ
e in the life
sector, and if t
he “strategic p
artnership”
is qualified as
such by the bo
ard of director
s.
For further det
ails on the ter
ms and cond
itions of o
ur warrants pl
ans, we refer
to the plans av
ailable on
our
website and as
may be amended fr
om time to tim
e.
In deviation fr
om the princip
le 7.9 of the CC
G, the Company has not
fixed any minim
um thres
hold for the
detention of sh
ares by the mem
bers of the Exec
utive Comm
ittee. Howev
er,
t
he members of the E
xecutive
Committee
h
old subscri
ption rights
(warrant
s) on the Company
’s shares as des
cribed in abov
e in this
Remuneration
Policy, en
abling them t
o hold shares in t
he Company.
2.6.3.3
Contract
terms and conditions
The members of the E
xecutive Commit
tee are engage
d based on a servic
es agreement or an employ
ment
Labour law appli
es to the contract
ual arrangem
ents with
the members of the E
xecutive Managem
ent
engaged on an em
ployment cont
ract.
When the member of t
he Executive Comm
ittee is engag
ed on a service
s agreement,
it generally prov
ides
for a notice per
iod of six mont
hs and for the
possibilit
y to terminate t
he agreeme
nt with cause an
d without
No specific s
everance c
lauses are a
greed as
a rule, exce
pt when d
uly justified
after recom
mendation
of the
Nomination an
d Remunerati
on Committ
ee.
There is no spec
ific additio
nal indivi
dual plan regar
ding suppl
ementary pens
ion or early
retirement
schemes
put in place for
the members of
the Executiv
e Committee.
The Board has the aut
hority to tem
porarily deviate f
rom this Policy
in case of exception
al circumstanc
es,
primarily thos
e in which deviat
ion is necessary t
o serve the long
-
term inter
ests and sustain
ability of the
company or to
guarantee t
he viabil
ity of the com
pany. Shou
ld there be a
need to devi
ate from this
remuneratio
n Policy, the CE
O will bring su
bstantiate
d arguments t
o the Nominat
ion and Remun
eration
Committee for r
ecommendati
ons and appro
val by the Board of
D
irectors.
Any deviations
from this
be described in
the Remunera
tion report.

In 2021
, the rem
uneration of t
he Board of Dir
ectors was bas
ed on a fixed r
emuneratio
n and a fixed gran
t of
warrants, wher
eas the rem
uneration of
the Executive
Committ
ee members was b
ased on a base f
ixed
remuneratio
n, a variable ann
ual cash remuner
ation, fringe
benefits and long
-
t
erm share
-
bas
ed incentives
(warrants).
The variable remun
eration of t
he Executive Commit
tee members was calcul
ated based on the Com
pany
and the individua
l’s perform
ance. The Company
’s perfor
mance was measured ag
ainst the Com
pany’s
objectives, an
d the Execut
ive Committ
ee members’ p
erformance,
against t
heir individu
al object
ives.
The Company’s
objectives have been det
ermine
d by the Board of Direct
ors at the beginn
ing of the year. For
2021
, the Boar
d of Director
s has decid
ed to establis
h the Comp
any’s
%, reflec
ting the
level of achiev
ement of the C
ompany’s o
bjectives base
d on the exec
ution of our
CYAD-
211
ical program
s, the buil
ding of our long
-
t
erm shRNA pi
peline, our
licensing a
nd busines
s
development,
and the financ
ing of the Company,
once again
into consider
ation the chall
enging
sanitary condit
ions faced i
n 202
1
with the
pandemic of COV
ID
-
The individual
performanc
e of each member of
the Executive Com
mittee has be
en determi
ned by an
individual ass
essment bet
ween the Execut
ive Committee mem
ber and the CEO (
or, for the CEO, betwee
n
the CEO and the Chair
man of the B
oard). The assessm
ent of t
he Executive Comm
ittee member
and the
CEO was revie
wed by the N
omination a
nd Remunerat
ion Commit
tee which mad
e a recom
mendation to t
he
Board of Direct
ors for final
decision. T
he CEO did not
participat
e to any decis
ion regardin
g his own indiv
idual
For the CEO, the varia
ble remuner
ation is based on 75%
of the Company perf
ormance and 25% of
individua
l
performance.
For the other mem
bers of the Ex
ecutive Commi
ttee, the varia
ble remuner
ation is base
d on
50% of Company per
formanc
e and 50% of indivi
dual per
formance.
The variable c
ompensatio
n represent
s 30% of t
he fixed compens
ation at
target for n
on
or 40% of the f
ixed compe
nsation at tar
get for U
S
-
based member
s and 45% of
the fixed
compensatio
n at
target for the C
EO. Those targ
et percenta
ges may be multipl
ied by a factor f
rom 0% to 200%, depe
nding on
the individua
l performanc
e.
Therefore, the
following f
ormula has b
een used to calc
ulate the am
ount of the var
iable rem
uneration:
(Annual salar
y
/fee x % cont
ractual bonus
x %
C
ompany p
erformance x
ratio
C
PLUS
(Annual compe
nsation/f
ee x % contract
ual bonus x % li
nked with the i
ndividual p
erformanc
e x ratio Indiv
idual
In
2021
, the Boar
d of Director
s, upon recomm
endation of t
he Nomination and Rem
unerat
ion Comm
it
tee,
has also decided t
o offer to the members o
f the Executiv
e Committee the oppor
tunity to par
ticipate to
a
Reference is m
ade to the sect
ion 2.5 of this
Annual Report
regardin
g the deviati
ons from cert
ain principl
es
of the CCG rel
ative to the re
muneration
of the Board of D
irectors and t
he Executive C
ommitt
ee.
In the wave of
the shareh
olders’ right
s reform, t
he company comp
lied with th
e new standar
dized
remuneratio
n report as present
ed by the EU Commissi
on curr
ently as a draft
elines
on the
standardize
d presentati
on of the remu
neration r
eport under
Directive
2007/36/EC
, as amende
d by Directi
ve
(E1
U) 2017/828,
as regards t
he encouragem
ent of long
-
te
rm sharehold
er engagem
ent).

The Company s
eeks to impro
ve permanent
ly the qualit
y and tr
ansparency
of its remuner
ation to the Bo
ard
and to the Execut
ive Committ
ee and to take int
o account th
e observatio
ns of its shareho
lders or proxi
es.
The remunerat
ion
P
olicy and t
his remunerat
ion report provid
e for a greater de
gree of disclos
ure and
tr
ansparency on all t
he compo
nents of the r
emuneration
of the Board a
nd the Exec
utive Commit
tee, and t
he
link between t
he remunerat
ion and the p
erformance of
the Company.
The total remunerat
ion of the Board of
Directors
, the CEO and the Execut
ive Committ
ee members is det
ailed
In this Section,
the Total Rem
uneration T
ables are st
ructured as f
ollows:
(1) All components of remuneration are re
ported in gross amounts
(2) If the officer has not been in service for the entire year of the report, the start date and/or the date of the end of his
contract must be informed
(3) This component includes death and di
sability benefits, medical expenses
and other additional benefits
(4) The amount reported is equal to the monetary val
ue of the variable remuneration acquired during the year report
ed
(2021)
(5) Benefit in kind on granted warrants
– according to the Belgian Ac
t of 26 March 1999.
(6) Extraordinary items paid in 202
1
: the grants of warrants are reported under thi
s section, considered as
extraordinary,
fixed items of the remuneration.
(7)
The
reported
amount
contains
all
contributions
that
were
actually
paid
by
the
employer
during
the
y
ear
to
(8)
Relative
share
of
remuneration
[Fixed
Relative
share
of
variable
remuneration
[V
ariable
remuneration]
/
[
Total remuneration]
2.7.2.1
Total Remun
eration of the Boar
d of
2021 (6)
1
a) BIK on fixed
Pension
expense
Total
and variable
benefits
variable
year
variable
Mel Management
(permanent
representative
(1)
Table 1 -
Tot
al Remunerat
ion (
1)

(2)
'(3)
Koelher Maria
(4)
Grand Total
€ 372 500
€ 51 150
€ 423 650
(1)
30.000 warrants were awarded during 2021 b
ut 20.000 declined by
the board member in 2021
(2)
30.000 warrants were awarded during 2021 b
ut declined by the board membe
r in 2021
(3)
30.000 warrants were awarded during 2021 b
ut 10.000 warrants decl
ined by the board memb
er in 2021
(4)
not applicable – non eligible
In 202
1
, each Direct
or, includ
ing non
-
executi
ve Directors,
have been offered f
ixed grants of
10,000 warrants
.
The grants wer
e not relate
d to any perf
ormance con
dition. T
he reasons f
or the variatio
n in the num
ber of
warrants awar
ded (disclos
ed under b) are specif
ied under
footnotes (1) a
nd (2). No taxable be
nefit in kin
d
is disclose
d under (a) for D
irectors wi
th tax resid
ence outsi
de of Belgium
(who are not in
scope for th
e tax
valuation und
er Belgian la
w).
The details o
n the warrant
s (includi
ng the
of warrants
granted, v
ested, and ex
ercised, and t
he
exercise
pric
e,
can be found in t
he Share
-
Based Rem
unerat
ion section bel
ow
:
2.7.2.2
Total remun
eration of the CE
O
Name,
Position
1. Fixed rem
uneration
2. Variable
remuneration
3.
Extraordi
nary
4.
Pension
Total
and variable
Base
Board
Other
(3)
'(1)
on warrants
granted during
c) Target value at
Executive,
(1) Others benefits such as heal
th insurance, …
The multi
-
year
variable consi
sts in the grant of war
rants. The target
value at the offer date m
ay vary,
depending on t
he share price.
For the proport
ion between the fi
xed and the variable re
muneration,
the amount of the benef
it in kind
according to th
e Belgian Act
of 26 March 19
99 is taken int
o considerati
on.

2.7.2.3
Total Remun
eration o
f the Executive Com
mittee (excl.
Name,
Position
1. Fixed rem
uneration
2. Variable
remuneration
3.
4.
Pension
expense
5. Total
6. Proportion of
variable
remuneration
Base
Board
Other
benefits (3)
(2)
'(2)
variable
c) Target value at the
Executive
Committee
(1)
(1) Three Executiv
e Committee mem
bers are legal
entities eng
aged through servi
ces agreements wi
th the Company
and three Exec
utive Committ
ee members are natu
ral persons.
(2) Other fringe ben
efits are attribut
ed to natural pers
ons only, such as pens
ion plan, health
insurance, c
ompany car, repres
The table abov
e contains ag
gregate amou
nts for the
members of the Ex
ecutive Com
mittee.
The multi
-
year
variable cons
ists in t
he grant of warrant
s. The target
value at the offer
date may vary
depending on t
he share price.
For the proport
ion between the fi
xed and the variable re
muneration,
the amount of the benef
it in kind
according to th
e Belgian Act
of 26 March 19
99 is taken int
o considerati
on.
2.7.2.4
Performance
of Executi
ves in the rep
orted finan
cial year
The performan
ce criteria,
their relati
ve weighting a
nd the actual out
come in
c
an be summariz
ed as
The amount of t
he variable remun
eration is
based on the Comp
any’s perfor
mance and the in
dividua
l
performance o
f the executiv
e committee
members mea
sured against
the individ
ual and Compa
ny’s
objectives. F
or the CEO,
the v
aria
ble remunerat
ion is based on 75% of the Company
performance and 25
%
of individua
l perfor
mance. For t
he other mem
bers of the Exe
cutive Com
mittee, the v
ariable rem
uneration
is
based on 50% of
Company perf
ormance and 50% of
individu
al performance
.
Upon
r
ecommendati
on of the Nominati
on and Remuner
ation Committ
ee, the Board of Dir
ectors has deci
ded
to grant the followi
ng variable
remunerati
on and warrants to the CE
O and the members of the Exec
utive
b) Ac
tual awar
d out
come (c
ash

Business
CEO
CEO
Individual
b) 47 582 EUR + 70 000 w
arrants
6
Members of the executive committee
Individual performance
a) 105% in average
b) 285 244 EUR +190 000
The Share
-
Bas
ed Remunerati
on Tables are
struct
ured as follows:
In deviation fr
om the princi
ple 7.6 of t
he CCG, the B
oard has determi
ned that the gr
ant of warrant
s to non
-
executive or in
dependent dir
ectors i
s in the best int
erest of the Com
pany to att
ract and retain h
ighly s
directors in a
very dynamic
and competit
ive envir
onment. The gr
ant of warrant
s is a commonly
used
remuneratio
n instrument in the s
ector in which the Com
pany oper
ates, in particul
ar in the United Sta
tes
where the Company is ac
tive. In additi
on, the Comp
any is not entitl
ed to own treasury shar
es and is current
ly
unable to off
er any rem
uneration i
n shares.
Finally, th
e grant of w
arrants
provides an at
tractive a
dditional
remuneratio
n without impact
ing the Compa
ny’s cash. W
ithout this
possibilit
y, the Compan
y would be subj
ect
to a considera
ble disadvanta
ge compare
d to competitors
offering w
arrants to t
heir non
-
ex
ecutive direc
tors.
The grant of war
rants is not li
nked or subjec
t to any perfor
mance condit
ions and c
onsequently,
does not
qualify as varia
ble remuner
ation.
4.
End of
retention
period
7.
Warrants held
at the
beginning of
the year
8.
a) Warrants
awarded
b) Price of the
underlying shares
@ date of the offer
date
9.
b) Price of the underlying
shares @date of
acquisition
c) Pricer @ Ex
ercice price
acquisition
T
he Main conditions of Warrant Plans
I
nformation regarding the reported financial year
Table
2 - re
m
une
ration in Warrants

Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
Michel
Lussier,
WP
WP
WP
WP
WP
WP
WP
(*) During the year, no warrants
were exercised, an
d no warrants expired in accordan
ce with the warrant plan
Name of
Director
,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
Chris
Buyse,
Board
WP202
1
01/01/25
-
WP
01/01/25
-
WP
01/01/24
-
WP
01/01/24
-
WP
01/01/23
-
WP
01/01/23
-
WP
01/01/21
-
€
(*) During the year, no warrants
were exercised, and no warrants
expired in accordanc
e with the warrant plan

Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
Rudy De
Keyser,
Board
WP
WP
WP
WP
WP
(*) During the year, no warrants
were exercised, an
d no warrants expired in accordan
ce with the warrant plan
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial year
Serge
Goblet,
Board
Member
-
-
(*) During the year, no warrants
were exercised, an
d no warrants expired in accordan
ce with the warrant plan
Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported
Hilde Windels,
-
-

(*) During the year, no warrants
were exercised, an
d no warrants expired due to the
expiration of the warrant plan
Name of
Director,
The
main condit
ions of warrant
plans
Information r
egarding th
e reported fina
ncial
Dominic
-
-
-
-
(*) During the year, no warrants
were exercised, an
d no warrants expired due to the
expiration of the warrant plan
Name of
Director,
The main cond
itions of warra
nt plans
Information
re
garding the r
eported finan
cial
Marina Udier,
-
-
-
(*) During the year, no warrants
were exercised, and no warrants
expired due to the ex
piration of the warrant plan
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
NB: Filippo Pe
tti is not remun
erated as Ex
ecutive Dir
ector

Name of
Director,
The main
conditions
of warrant pla
ns
Information r
egarding th
e reported fina
ncial
Margo Roberts,
Board Member
-
-
-
0
(*) During
the ye
ar, no warrants were exerci
sed, and no warrants expi
red in accordance wi
th the warrant plan
Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
Debasish,
Board Member
-
-
(*) During the year, no warrants
were exercised, and no warrants
expired due to the ex
piration of the warrant plan
Name of
Director,
The main
conditions
of warrant pla
ns
Information r
egarding th
e reported fina
ncial
Board Member
-
(*) During the year, no warrants
were exercised, and no warrants
expired in ac
cordance with the warrant plan

Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported
financial
-
-
)
-
(*) During the year, no warrants
were exercised, and no warrants
expired in ac
cordance with the warrant plan
In deviation fr
om the princip
le 7.9 of the CC
G, the Company has not
fixed any minim
um thres
hold for the
detention of sh
ares by the me
mbers of the Ex
ecutive Com
mittee. Howev
er, the membe
rs of the Execu
tive
Committee
h
old subscri
ption rights (w
arrants
) on the Company’s s
hares as f
urther descri
bed hereinaft
er.
Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
Executive
-
0
-
-
-
-
-
-
-
(*) During the year, no warrants
were exercised, and no warrants
expired in ac
cordance with the warrant plan

Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
Officer
-
-
-
-
-
-
-
(*) During the year, no warrants
were exercised, and no warrants
expired
in accordance with the warra
nt plan
Name of
The main cond
itions of warra
nt plans
Information r
egarding th
e reported
financial
(*) During the year, no warrants
were exercised, an
d no warrants expired in accordan
ce with the warrant plan
Name of
Director,
position
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial

-
(*) During the year, no warrants
were exercised, and no warrants
expired in accordanc
e with the warrant plan
Name of
Director,
position
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
-
-
-
-
-
-
a)
b)
(*) During the year, no warrants
were exercised, and no warrants
expired in accordanc
e with the warrant plan
Name of
Director,
position
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
-
-
-
-
-
-
-

(*) During the year, no warrants
were exercised but 10,000 wa
rrants were forfeited in acc
ordance with the warrant plan
2016
Name of
Director,
position
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
Philippe
Chief Legal
Officer
-
-
-
-
-
-
-
(*) During the year, no warrants
were exercised but 20,000
warrants were forfeited in
accordance with the warrant plan
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported
Homsy,
(*) During the year, no warrants
were exercised and no warrants
expired in accordanc
e with the warrant plan

Director,
The
main condit
ions of warrant
plans
Information r
egarding th
e reported fina
ncial
Closin
Patrick
Jeanmart
201
20/07/201
7
20/07/202
0
N/
A
01/01/21
-
€
(*) During the year, no warrants
were exercised, and no warrants
expired in accordanc
e with the warrant plan
Name of
Director
,
Pierre
Latere,
COO
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial year
9
2
A
01/01/23
-
01/01/21
-
(*) During the year, no warrants
were exercised and no warrants
expired in accordanc
e with the warrant plan
Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Georges
Rawadi,
VP
Business
Develop
WP
WP
WP
(*) During the year, no warrants
were exercised, and no warrants
expired in accordanc
e with the warrant plan

Name of
Director,
The main cond
itions of warra
nt plans
Information r
egarding th
e reported fina
ncial year
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Moore,
VP
Corporat
e
Strategy
201
01/03/201
9
(*) During the year, no warrants
were exercised, and no warrants
expired in accordanc
e with the warrant plan
Name of
Director,
The main cond
itions of warra
nt plans
Information
re
garding the r
eported finan
cial
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Dieter
VP
WP
WP
(*) During the year, no warrants
were exercised, and no warrants
expired in accordanc
e with the warrant plan
No termination
indemnity was
paid to any Ex
ecutive Com
mittee mem
ber in 2021
2.7.5.
Use o
f the possibi
lity to recl
aim the vari
able remunerat
ion
The Company has not pr
ovided for
the possibili
ty to reclaim
the variable rem
uneration a
nd did not recl
aim
any variable r
emuneration
during the re
ported year.
2.7.6.
Dev
iations f
rom the Remunerati
on Poli
cy
This Remuner
ation Report
does not deviate
from the
which c
an
be found
on the
2.7.7.
Evolution of the r
emuneration and the
performance of t
he company and rat
io
Directo
r's average re
muneration
Executive Committee (in€'000)
Loss for the period (in€'000)

Treasury position at year end (in€'000
)
39 338
17 234
39 338
Performance KPI's determining the company performance
Average remun
eration on
a full
-
time eq
uiv
alent
basis of employees
Employees of the company
-
Celyad Oncology (in€'000)
Employees of the company
-
This table incl
udes the 201
9
and the 2020
d
ata for com
parison with 20
2
will be com
pleted durin
g the
next three
ye
ars to compl
y with the requ
irement on the
f
ive
In addition t
o the losses a
nd the treasur
y position
at year end,
the table in
cludes the p
erformanc
e criteri
a
which determi
ned the vari
able remuner
ation. T
hese might diff
er from one y
ear to another
, in accordan
ce
with the Remu
neration Pol
icy.
For 2021
, the Board of Directors has
decided to establis
h the Company’s
perform
ance at 90%, ref
lecting th
e
level of achiev
ement of the C
ompany’s o
bjectives base
d on the exec
ution of our
CYAD-
211
cli
nical pr
ograms, the bui
lding of our
long
-
term shRNA
pipeline, o
ur licensing a
nd busines
s
development,
and the financ
ing of the Company,
once again
into consider
ation the chall
enging
sanitary condit
ions faced in 202
with t
he pandemic of COVID
-
19.
For the calcul
ation of the averag
e
remuneratio
n for the employe
es, the company has
taken into consider
ation the
fix
ed and the variable par
ts
of the remuner
ation as wel
l as the other b
enefit
s paid to employ
ees (such as
group insuran
ce, represe
ntation
allowance, c
ompany car, or
health ins
urance).
The ratio between t
he lowest salary
for the employ
ees and the highest sal
ary of the Execut
ive Committee
is
For the calcul
ation of the rem
uneration,
the Company has
taken into c
onsiderati
on the fixed gr
oss salary
.
2.7.8.
T
aking i
nto consideration of
the vote of the s
hareholders
On May 5, 202
he shar
eholders hav
e approved the
remun
eration repor
t at
Regarding th
e vesting per
iod of the warr
ants,
the Company’s
warrants ves
t gradually
during a thr
ee
-
year
period (1/3 per
year). The approve
d warrants plan prov
ides for an acc
elerated vest
ing in case for inst
ance
o
f a change of contr
ol or a public of
fering on
the shares of the Com
pany. The C
ompany believ
es that thi
s
accelerated
vesting in a
limited n
umber of c
ircumstanc
es is market
practic
e and does
not prejudic
e the
SRL
EY Bedrijfsrevisoren
–
Réviseurs
d’Entreprises
, hav
ing its regis
tered o
ffice at De Kl
eetlaan 2, B
–
1831
Diegem, Belg
ium, duly repres
ented by Carl
o
-
Sébasti
en d’A
dd
ar
io, is the st
atutory audit
or of the Compa
ny.
Carlo
-
is a memb
er of the Bel
gian Insti
tute of C
ertified Audit
ors ("Ins
titut des Rév
iseurs
The annual re
muneration of
the auditor for
the perform
ance of its
mandate f
or the audit of
its
financial stat
ements (incl
uding the s
tatutory fi
nancial state
ments) amount
s to
€
f
or the year

2.8
Description of the principal risks associated to the activities of the Group
Risk managem
ent is embe
dded in the str
ategy of the C
ompany an
d is of crucial
importa
nce for achi
evi
the objectives
set by the Board of Di
rectors. The B
oard is responsible f
or assessing the
risks associat
ed
with the activ
ities of the C
ompany an
d for evaluat
ing the inter
nal audit s
ystems. T
he Board relies p
artiall
y
on the Executi
ve Committee
to perform
The interna
l audit system
s play a cent
ral role
in managin
g the risks
and the act
ivities of t
he Compa
ny. To
safeguard the prop
er implementat
ion and execut
ion of the strat
egies defined by the Bo
ard, the Comp
any
has set up inter
nal risk mana
gement a
nd control sys
tems. The int
ernal audit
system is base
d on the foll
owing
•
The
c
omplianc
e with and the
training o
n the internal
policies of
the Company,
includin
g but not
limited to t
he Code
of Business Co
nduct, St
andard Operat
ing Procedur
es,
areas such as
data protec
tion, inf
ormation sy
stems, c
ontract lifecy
cle, confl
ict of int
erest, gif
ts and
gratuities,
crisis manag
ement;
•
The monitoring
of the legal en
vironment wit
h the support
of external
a
ttorneys;
•
Audit
activit
ies performe
d by Quality As
surance and F
inance depart
ments;
•
Controls
, s
upervision and c
orrective ac
tions and meas
ures.
The purpose of
these systems
is to manage in an eff
ective and eff
icient manner t
he signific
ant risks t
o which
the Company is
exposed. They ar
e designed t
o ensure:
•
The
careful mo
nitoring of t
he effectiv
eness of t
he Company’s s
hort term and lon
g
•
The
Company’s sust
ainability
by a constant ev
aluation of it
s performa
nce (operati
ons and
The Company’s
organization and v
alues as well as t
he legal envir
onment sur
rounding the act
ivities of the
Company cons
titute the bas
is of all the
internal audit
component
s. It is dete
rmined by a co
mposition of
formal
and
informal ru
les on which th
e functionin
g of the Company
relies.
The organizat
ion encompass
es the follo
wing elements
:
•
Company’s Mission: “
Developing innov
ative cell
therapies aga
inst cancer
”;
•
The Company’s
values: Passi
on. Respect.
Innovation. D
eterminati
on.
•
“
Elimi
nate cancer. I
mprove life”
;
•
Employees and c
onsultants:
the Company has been abl
e to attract and ret
ain motivated an
d
dedicated qu
alified employ
ees. Pass
ion, pro
mi
ndness, com
mitment, t
rust and
integrity ar
e the essential tr
aits of charac
ter of the Compa
ny’s team
. All
t
he Company’s
and consultant
s are required to manag
e the Company’s r
esources with
du
e diligence, int
egrity and
to act with the nec
essary com
mon sense
;
•
A
Board of Directors, includi
ng the Remuner
ation and Nomin
ation Commit
tee and the Audit
Committ
ee. See s
ection
5
for
further inform
ation on th
e functioni
ng of the Board and it
s Committ
ees
;
•
-
Company
is support
ed by several
independ
ent directors
.
Their expert
ise and experi
ence contrib
ute to the Comp
any’s effect
ive managem
ent
;

•
A
Chief
Executive O
fficer, in charge of
the day
day manage
ment, support
ed by the other membe
r
of the Executiv
e Committee
•
An internal set
of procedures
:
t
he Company
set up a Code of
Business Cond
uct and Ethics
and
adopted inter
nal rules
and
procedures wh
ich regulat
e the activit
ies within
the Company
•
The external e
nvironment:
t
he Company op
erates in a hig
hly regulated e
nvironment (
GMP, GCP,
etc.
). Complia
nce with all thes
e external rules an
d guidelin
es is of critical im
portance t
o the
The evaluati
on of the Compa
ny’s organizat
ion, values
and complianc
e with legal e
nvironme
nt is made
regularly for t
he supervis
ing bodies.
The Board of Direct
ors
the Co
mpany’s st
rategy,
risk appetite an
d
policies. It
is the task of the B
oard of Direct
ors to strive for l
ong
-
term success by procuring proper risk
assessment.
The
Executive Committee
is res
ponsible for
the development o
f systems that identif
y, evaluat
e
Risk identifi
cat
ion consists
in exami
ning the fact
ors that c
ould influe
nce the Comp
any’s str
ategy and
•
Internal
factors:
those
are c
losely related t
o the internal orga
nization an
d could have sever
al causes
(
e.g.
,
change i
n the group str
ucture, staf
f, ERP s
ystem);
•
External
t
hose
can be the r
esult of chang
es in the econ
omic climat
e, regulati
ons or
Besides the c
ommon risks
associate
d to all indust
rial comp
anies, the
the following specific risk factors wh
ich are described her
eafter.
2.8.4.
Ri
sks related to
the Compa
ny’s
financi
al position
and capital
The Compan
y may need substan
tial additi
onal fundi
ng, which may not b
e available on accep
table
terms when need
ed, if at al
l.
The Company’
s operations
have re
quired subst
antial amo
unts of cash s
ince incept
ion. The Comp
any
expects to continu
e to spend substanti
al amounts t
o continue the clinic
al developm
ent of its product
candidates,
including
its ongoing a
nd planne
d clinical tri
als for CY
AD
-
“Product Candi
dates”) or any f
uture product
candidates,
including
limit
ed to
CYAD-
and CYAD
-
231
.
If approved, the Comp
any will requir
e significant add
itional am
ounts in order to launch a
nd
commercializ
e its Product
Candidates.
As of December 31,
2021, the Comp
any had cash and cas
h equivalent
s of €30.0 mill
ion and no short
-term
investments.
On January 8, 2021, we e
ntered into a c
ommitted equ
ity purchase agr
eement (“
Purchase
Agreement”)
over a 24
-
month t
erm for up to $40
m
illion wi
th Lincoln Par
k Capital Fund,
LLC (“LPC”)
,
pursuant to whi
ch LPC’s purch
ases are subje
ct to cert
ain conditions, inc
luding that t
he Company
deliver a Re
gular Purchas
e Notice (
as that ter
m is defined i
n the Purchas
e Agreem
ent) of
as the adjust
ed price of
A
DSs exceeds
$1.00
Over the
remaining lif
etime of the P
urchase Agr
eement,
we will have th
e right to di
rect LPC to p
urchas
e up to an aggr
egate amoun
t of $28
, each of
which repres
ents one of our
ordinary s
hares.
As of Decem
ber 31, 202
1, the remaini
ng amount of
$28.0
million of this
equity purc
hase agreem
ent is expect
ed to strengthe
n the Compa
ny’s current
statement
of
financial posi
tion while a
lso providing t
he Company w
ith access
to future capita
l on an as neede
d basis an
d
to ensure suff
icient fun
ding to cover
its oper
ations for t
he next 12 m
onths from
the date th
e financia
l

Based on its c
urrent scope o
f activit
ies, the Compa
ny estimat
es that its
cash and cash
equivalent
s as of
December 31, 202
1 combined wit
h the remaining acces
s to the equity purc
hase agreeme
nt established
with
Lincoln Park Capita
l Fund, LLC (rem
aining amount
of $28.0 million as
of December 31, 2021)
should be
sufficient t
o fund operatin
g expenses
and capital ex
penditure r
equirement
s
However, cha
nging circum
stances may
cause it t
o increase its
spending si
gnificantly f
aster than it cur
rently
ant
icipates,
and the Compan
y may need to spen
d more money t
han currently
expected bec
ause o
f
circumstanc
es beyond its c
ontrol. The Com
pany may req
uire addition
al capital for
the further dev
elopment
and commerci
alization of
its Product Ca
ndidates and ma
y need to r
aise additio
nal funds sooner
if the
Company choo
ses to expand
more rapidly t
han it present
ly anticipat
es.
The achievem
ent of milestones (
R&D, scientif
ic, clinical
, regulatory,
business) wil
l trigger paym
ent
obligations to
wards Celdara,
Dartmouth an
d H
orizon, which
will negatively i
mpact
and may require m
aterial addi
tional fund
ing
.
These c
ommitment
s are detailed i
n the
The Company
contracted
over the pas
t year numer
ous fundin
g agreemen
ts with the W
alloon Reg
ion to
partially fin
ance its res
earch and d
evelopme
nt programs.
Under the term
s of the agreeme
nts, the Comp
any
would need to obt
ain the cons
ent of the Walloo
n Region for any
out
-
licen
sing agreem
ent or sale to a t
hird
party of any or all
of its prod
ucts, protot
ypes or instal
lations whic
h may reduc
e the Company
’s ability
to
partner or sel
l part or all
of its produc
ts. Furt
hermore, whe
n the resear
ch and devel
opment progr
a
ms partially
financed by t
he Company en
ter in “explo
itation phas
e”, the Com
pany has t
o start reimb
ursing the fu
nding
received.
F
or more inf
ormation on t
he pote
ntial financ
ial conse
quences of t
hese exploi
tation decis
ions in
terms of potent
ial reimbursem
ents
and sales
percentage
fees to be paid to the Wallo
on Region, ref
er to note
The Company m
ay not be able to reim
burse such fun
ding under the t
erms of the agr
eements or
such
reimburseme
nt may jeopardiz
e the funding o
f its clinical a
nd scientif
ic activi
The Company’
s ability t
o raise additio
nal funds w
ill depen
d on financia
l, economic a
nd market con
ditions
and other facto
rs, over which it
may have no or limited contr
ol, includin
g the current geop
olitical tens
ion and
military conf
lict betwe
en Russia a
nd Ukraine,
and the C
ompany cann
ot guarantee t
hat additi
onal funds
will
be available t
o it when
on commercially acce
ptable term
s, if at al
l. If the nec
essary funds
are not
available, t
he Company may
need to se
ek funds throu
gh collabor
ations and
licens
ing arrang
ements, w
hich
may require it t
o reduce or r
elinquis
h significant
rights to i
ts research pr
ograms and
product
candidates,
to
grant licens
es on its tech
nologies to
partner
s or third part
ies or enter
into new coll
aboration a
greements
, the
ter
ms could be les
s favorable t
o the Company than those it
might have obtain
ed in a different cont
ext. If
adequate fund
s are not availabl
e on commercial
ly acceptabl
e terms when neede
d, the Company ma
y be
forced to dela
y, reduce or ter
minate the de
velopment or
commercializ
ation of all or p
art of its res
earch
programs or pr
oduct candi
dates or it m
ay be unable to t
ake advantage of
future busin
ess opportunit
ies.
The Compan
y has incurred
net losses i
n each perio
d since
its
inception and anticipa
te that
the
Company
will
continue to in
cur net losses in the
future.
The Company is not pr
ofitable and has inc
urred losses in
each period since it
s inception. F
or the years
ended
December 31, 2021, 20
20 and 2019, the Comp
any incurred a los
s for the year of
€
26.5
million and €28.
6 million, respec
tively. As of
December 31, 2021, t
he Company had an accum
ulated defic
it
of €
309.0
million
.
T
he Company expect
s these loss
es to increas
e as it conti
nues to incur s
ignificant
researc
h
and development
and other expens
es related to it
s ongoing operatio
ns, continues
to advance its
Candidates
through
preclini
cal
studies and clinical t
rials, seek
regulatory approv
als for its
P
roduct
Candidates
up m
anufactur
ing capabili
ties and hire a
dditional perso
nnel to support
the developm
ent
of its
and to enhance it
s operati
onal, financ
ial and inform
ation manageme
nt systems
.
Even if the Company suc
ceeds in com
mercializi
ng one or more of it
s Product Candidat
es
incur losses f
or the foresee
able future r
elating to it
s substant
ial research a
nd developme
nt expenditur
es to
develop its tec
hnologies.

The Company m
ay encounter
unforeseen ex
penses, diff
iculties, c
omplicati
ons, delays an
d other unkno
wn
factors that
may advers
ely affect it
s business
. The size of i
ts future net l
osses wil
l depend, in par
t, on the
rate of future g
rowth of its
expenses and it
s ability to ge
nerate reven
ue.
Its prior loss
es and exp
ected fut
ure losses hav
e had and w
ill continu
e to have an
adverse ef
fect on its
shareholders’
equity and w
orking capit
al. Further
, the net losses
the Company inc
urs may f
luctuate
significantly
from quarter
to quarter and yea
r to year, such that
a period to period comp
arison of its
results
of operations
may not be a good i
ndication of
its future perf
ormance.
2.8.5.
Risk
s
related t
o Company’
s business acti
vities and
industry
The Company
’s Product Candidate
s are a new approach to
cancer treatment th
at present
s
The Company has
concentr
ated its resea
rch and dev
elopment eff
orts on cell
-
based imm
unotherap
y
technology,
and its fut
ure succes
s is highl
y dependent
on the succes
sful devel
opment of ce
ll
immunot
hera
pies in gener
al and in p
articular
its approac
h using the NKG
2D receptor
, an act
ivating rece
ptor
of NK cells,
to target str
ess ligands.
Current
ly, two of the
Company’s c
linical Pr
oduct Candi
dates
101 and CYAD
-
use t
he NKG2D receptor
. The Compan
y cannot be sure t
hat its T
-
cell imm
unotherap
y
technologies w
ill yield sat
isfactor
y products that ar
e safe and ef
fective, scal
able or profita
ble.
Its approach to canc
er immunoth
erapy and cancer
treatment gener
ally poses a number of
challenges,
•
Developing
and deployi
ng consistent
and reliab
le processe
s for engine
ering a patie
nt’s T cells
ex
vivo and infusi
ng the engine
ered T
-
cells
back into t
he patient;
•
Educating
medic
al personne
l regarding the pot
ential side ef
fect profile of each of
Candidates,
such as the pote
ntial advers
e side effect
s related to cy
tokine rele
ase or neurot
oxicity;
•
Developing
process
es for the saf
e administra
tion of these Pr
oduct Cand
idates, inclu
ding long
follow
-
up for al
l patients wh
o receive its
Product Cand
idates
;
•
Developing
th
erapies for t
ypes of canc
ers beyond t
hose addr
essed by it
s current
Product
Additionally
, because its t
echnology
involves t
he genetic modif
ication of pat
ient cells ex
vivo using a vir
us,
the Company is
subject to ma
ny of the challe
nges and risks
that gene t
herapies face,
including:
•
Regulatory req
uirements gov
erning gene and c
ell therapy prod
ucts have change
d frequently an
d
may continue to c
hange in the fut
ure;
•
Although its vi
ral vectors
are not able to rep
licate,
there is a risk
with the use of
retroviral or l
entiviral
vectors that t
hey could lead to new or reac
tivated pathog
enic strains
of virus or other infec
tious
•
-
-
up observati
on period for all patien
ts who receive
treatment
using certai
n gene therap
ies, and the Comp
any may need
to adopt such an obs
ervation
period for
Moreover, pu
blic perc
eption of t
herapy safet
y issues, i
ncluding ad
option of
new therape
utics or no
vel
approaches t
o treatment,
may adversely i
nfluence the w
illingness of
subjects
to participat
e in clinical t
rials,
or if approved, of
physicians to s
ubscribe to the nove
l treatment
. Physicians m
ay not be willing t
o underg
o
training to a
dopt this novel
and personal
ized therapy,
may decide t
he therapy is
too complex t
o adopt withou
t
appropriate t
raining an
d may choose not
to administer
the therapy. Bas
ed on these a
nd other factor
s,
hospitals and p
ayors may dec
ide that the be
nefits of
this new therapy d
o not or will not
outweigh it
s co
sts.
Its Product
Candidates are biol
ogics, which are compl
ex to manufacture
, and the Company may
encounter d
ifficulties in pro
duction.

Its Product C
andidates are biolo
gics and th
e process of manuf
acturing it
s products is
complex,
regulated an
d subject t
o multiple risk
s. The manufac
ture of its
Product
Candidates involv
es compl
ex
processes, i
ncluding har
vesting c
ells from p
atients, sel
ecting and
expanding c
ertain ce
ll types, en
gineeri
ng
or reprogrammi
ng the cells i
n a certain m
anner t
o create CAR T
-
cells, expan
ding the cell
population t
o obtain
the desired dos
e, and ultim
ately inf
using the cell
s back into a
patient’s bo
dy. As a result
of the compl
exities,
the cost to manuf
acture its
Product Can
didates, i
s higher than t
raditional s
mall molec
ule chemic
al
compounds, and t
he manufactur
ing process is
less reliable and is mor
e difficult to repr
oduce.
deviations from
normal manuf
acturing proce
sses could res
ult in reduced pr
oduction yield
s, product def
ects,
Although the Com
pany is work
ing, or will be wor
king, to dev
elop commerc
ially viabl
e processes f
or the
manufacture o
f its Product
Candidates, doin
g so is a difficult
and uncertain task,
and there are ris
ks
associated wit
h scaling to t
he level requir
ed for later
-
stage clinical t
rials and commerc
ializati
on, includin
g,
among others, c
ost overruns, pot
ential probl
ems with process s
cale
-
out, process r
eproducibi
lity, stabilit
y
issues, lot c
onsistency,
and timely
availabi
lity of reag
ents or raw m
aterials.
The Company
may ultimat
ely be
unable to reduce t
he cost of goods for it
s Product Candidat
es to levels t
hat will allow for an
attractive r
eturn
on investment i
f and when tho
se Product Candi
dates are com
mercialize
d
In addition, the
manufacturi
ng process t
hat the Company
develops f
or its Product Ca
ndidates is
subject t
o
regulatory auth
orities’ appr
oval process
, and the Company
will need to mak
e sure that the Compa
ny or its
contract man
ufacturers,
or CMO’s, if
any, are able to me
et all reg
ulatory aut
horities
requirements
on an
ongoing basis
. If the C
ompany or it
s CMO’s are u
nable to rel
iably pr
oduce Produc
t Candidat
es to
specificati
ons acceptabl
e to the reg
ulatory
authorities,
the Company
may not obt
ain or mai
ntain the
approvals the
Company nee
ds to commercializ
e such Produc
t Candidate
s. Even if t
he Company obtai
ns
regulatory
approval for
any of it
s Product Ca
ndidates, t
here is no
assurance t
hat either th
e Company or
its
CMO’s will b
e able to ma
nufacture t
he approve
d product t
o specificat
ions accept
able to the
authorities,
to produce it
in suffi
cient quanti
ties to meet t
he requirem
ents for t
he potential
launch of th
e
product, or t
o meet potential future dem
and.
Similarly
, changes in our contac
t manufact
urers, or CMOs,
may require us t
o conduct additio
nal comparabil
ity studies.
Any of t
hese challenges coul
d have an adverse
effect on its bu
siness, fina
ncial condit
ion, res
ults of operati
ons and growt
h prospects.
The future c
ommercial success of
the Company’s Product
Candidates will depe
nd on the degr
ee of
market accept
ance among p
hysicians,
patients,
hospitals and o
thers in the med
ical communit
y.
The Company’s
Product Candid
ates are at vary
ing stages of
development
and the Company may n
ever
have a product
that is commerc
ially success
ful.
The Company does
not expect
to be able to mark
et any of its
products for a numb
er of years
. Furthermo
re,
when available
on the market physici
ans may not pres
cribe the Company'
s products,
which would preve
nt
the Company fr
om generating s
ignificant rev
enues or becomi
ng profitabl
e. Market ac
ceptance of
the
Company's fut
ure products by
physicians, pat
ients and healt
hcare payers w
ill depend on a numb
er of factor
s,
many of which are bey
ond the Com
pany's cont
rol, includi
ng, but not limit
ed to:
•
Acceptance by
physicians,
patients and heal
thcare payer
s of each produc
t as safe, effect
ive and
•
Relative conv
enience, eas
e of use, ease of
administrat
ion and other perc
eived adva
ntages over
•
Prevalence an
d severity of
adverse event
s;
•
The extent to
which prod
ucts are ap
proved for
inclusion a
nd reimburs
ed on formular
ies of h
ospitals

The Compan
y may face signific
ant competition a
nd technological c
hange which could
limit or
eliminate
the market opportunit
y for its product
candidates.
The market for
pharmaceutic
al products is
highly competit
ive. The Company
’s compet
itors inclu
de many
established p
harmace
utical, biot
echnology, u
niversities
and other res
earch or com
mercial i
nstitutions, m
any
of which have subs
tantially gr
eater financ
ial, researc
h and developme
nt resources tha
n the Company.
The
fields in whic
h the Company
operates ar
e characteriz
ed by rapid t
echnologi
cal change an
d innovatio
n. There
can be no assurance t
hat competitors
of the Company are not
currently deve
loping or will not in t
he future
develop techn
ologies and pr
oducts that ar
e equally or mor
e effectiv
e and/or
are more econom
ical as any
current or futur
e technology or
product of the Compa
ny. Competing pr
oducts m
ay gain faster or great
er
market accepta
nce than the Com
pany’s prod
ucts and medical
advances or rapi
d technologic
al developme
nt
by competitor
s may resu
lt in the Com
pany’s pr
oduct candid
ates becom
ing non
-
comp
etitive or
obsolet
e
before the Company is
able to recover it
s research and devel
opment and c
ommercializ
ation expens
es. If
the Company or it
s product candidates do no
t compete eff
ectively, it
may have a material adverse ef
fect on
2.8.6.
Risks rel
ated to
clinical
develo
pment
The Compan
y may encounter su
bstantial
delays in its cl
inical tri
als or may fail to
demonstrate s
afety
and efficacy t
o the satisf
action of
applicable reg
ulatory aut
horities.
Before obtaini
ng regulator
y approval or
marketing author
ization from
regulator
y authorities f
or the sale of its
Product Candi
dates, if at all,
the Company must c
onduct extensiv
e clinical tr
ials to demonstrat
e the safety
and efficacy of
the Product Ca
ndidates in hu
mans. Pre
-
clin
ical test
s and Clinical t
esting are expe
nsive, tim
e
-
consumin
g an
d uncertain
as to outcom
e. The Company
cannot g
uarantee
that any pre
trials will b
e conducted as
planned or c
ompleted o
n schedule,
if at all. A f
ailure of one or
more clinic
al trial
s
can occur at any s
tage of test
ing. Events
that
may prevent successful or timely completion of clinical
•
Delays
in obta
ining requi
red Invest
igational
Review Board,
or IRB,
or Ethics Committee
approval
at each clinica
l trial sit
e;
•
Imposition
of a clinic
al hold by r
egulatory age
ncies, after
an inspection of
its clinica
l trial operati
ons
•
Failur
e by its
CRO’s, other t
hird parties or
the Compa
ny to adhere to cl
inical tr
ial requirement
s;
•
Delays
in the testing, validati
on, manufac
turing an
d delivery
of its Product
Candidat
es to the cli
nical
sites;
•
Occurrence
of serious
adverse events as
sociated wit
h the product
candidate that
are viewed t
o
outweigh its p
otential ben
efits
•
Failure to p
erform in accor
dance wit
h FDA’s go
od practices
, or GCP’s,
or applicab
le regulator
y
gui
delines in ot
her count
ries.
Furthermore,
the timely comp
letion of clinic
al trials in ac
cordance wit
h their protocol
s depends, amon
g other
things, on its a
bility to enrol
a suffici
ent number of patie
nts who remain i
n the trial until it
s conclusi
on. The
Com
pany may ex
perience diff
iculties in pat
ient enrolment
in its clinical t
rials for a variet
y of reasons,
•
The patient eli
gibility cr
iteria defin
ed in the protoco
l;
•
Its ability to recruit c
linical
trial
investigat
ors with the appr
opriate com
petencies and ex
perienc
e;
•
Competing cl
inical trials f
or similar t
herapies
;
•
The risk that pat
ients enroll
ed in clinical t
rials will
not complet
e a clinical tri
al.

Any inabilit
y to successful
ly complet
e preclini
cal and clini
cal developm
ent coul
d result in a
dditional cos
ts to
the Company o
r impair it
s ability t
o generate r
evenues from
product sales,
regulator
y and commer
cializati
on
milestones and
royalties. Clini
cal trial delays
could also short
en any periods dur
ing which the Com
pany may
have the exclus
ive right to c
ommercialize it
s Product Ca
ndidates or a
llow its com
petitors to bring
product
s
to market befor
e the Company does, whi
ch could impair it
s ability to s
uccessfully com
mercializ
e its Product
Candidates an
d may harm its
business and r
esults of oper
ations.
Its Product Ca
ndidates c
ould potenti
ally caus
e other advers
e events that
have not yet b
een predict
ed. As
described abo
ve, any of the
se events coul
d prevent the
Company from
achievin
g or maintaini
ng market
acceptance of
its Product
Candidat
es and impair it
s ability
to commerci
alize its pr
oducts if t
hey are ultim
ately
approved by a
pplicable re
gulatory author
ities.
In previous cl
inical trial
s involving T
-
cell based immuno
therapies, some p
atients experien
ced
serious adver
se events. The Co
mpany’s Prod
uct Candid
ates may demonst
rate a simil
ar effect.
In previous an
d ongoing clini
cal trials inv
olving CAR
-
T cell product
s by other compa
nies or acade
mic
researchers,
many patients
experience
d side effect
s such as neurot
oxicity and CRS
, which have in s
ome
cases resulte
d in clinical holds
in ongoing clini
cal trials of CAR
-
T Product Cand
idates. Ther
e have been life
threatenin
g events related to s
evere neuroto
xicity and CRS,
requiring inte
nse medical int
ervention suc
h as
intubation or
pressor support
, and in several
cases, result
ed in death. Sever
e neurotoxic
ity is a conditio
n
that is current
ly defined cli
nically by c
erebral edem
a
, confusion, drowsiness, speech impairment, tremors,
seizures, or
other central nerv
ous system s
ide effects, when s
uch side effects
are serious enoug
h to lead to
intensive car
e. In some case
s, severe ne
urotoxicit
y was thought
to be associat
ed with the us
e of certain
lymphodepl
etion precon
ditioning r
egimens u
sed prior to t
he adminis
tration
of the CAR
-
T cell prod
ucts
Undesirable s
ide effect
s caused by i
ts Product
Candidates
, or other T
-
c
ell based imm
unothera
py product
candidates,
could cause t
he Company
or regulat
ory author
ities to int
errupt, delay or
halt clinic
al trials a
nd
could result
in a more restri
ctive label
or the delay
or denial of re
gulatory
approval by the F
DA or other
comparable f
oreign reg
ulatory author
ities. Re
sults of its
trials could r
eveal a hig
h and unacc
eptable sever
ity
and prevalenc
e of side ef
fects or unex
pected char
acteristi
cs. Treatment
-
rela
ted side effec
ts could als
o affec
t
patient recrui
tment or the abili
ty of enrolled pat
ients to complete t
he trials or result
in potential pr
oduct liabil
ity
claims. In ad
dition, these s
ide effec
ts may not be appr
opriately r
ecogniz
ed or managed by
the treati
ng
medical staff
, as toxicities r
esulting from
T
-
cell based imm
unotherap
ies are not normally
encounter
ed in the
general patie
nt populatio
n and by medical
personnel.
The Company e
xpects to hav
e to train medic
al
personnel rega
rding its T
-
cell based immun
otherapy Pr
oduct Candidates
to understan
d their side ef
fects for
both its plann
ed clinical t
rials and upo
n any commerci
alization of
any T
-
cell bas
ed immun
otherapy Prod
uct
Candidates.
Inadequat
e training i
n recogniz
ing or manag
ing the potent
ial side eff
ects of T
-
cell bas
ed
immunothera
py Product C
andidates c
ould result i
n patient deat
hs. Any of
these occur
rences could
have a
material
adver
se effect
on its business,
financial c
ondition a
nd prospects.
For example, o
n February 2
8, 2022, t
he Company
announced it
s decision
to volunt
ar
il
y pause it
s Phase 1b
KEYNOTE-
B79 trial evalu
ating CYAD
-
1
01 administ
ered conc
urrently wit
h FOLFOX
chemothera
py followed
by
MSD’s anti
-PD-
1 thera
py, KEYTRUDA
® (pembroliz
umab)
in pati
ents with r
efractory met
astatic color
ectal
cancer follow
ing reports of
two fatalities
that presente
d with simi
lar pulmonary
findings.
The Company
is
currently inv
estigati
ng these repor
ts and evalu
ating any sim
ilar events
in additi
onal patients
treated on stu
dy.
On March 1, 2022,
the Company
was inform
ed via
-
emai
l communicat
ion from t
he FDA that the K
EYNOTE
-
B79 trial has b
een placed on c
linical hold d
ue to insuffic
ient infor
mation to a
ssess risk to study subjects.
The Company’
s clinical
trials are ongoi
ng and not complet
e. Initial succes
s in its ongo
ing clinical
trial
s
may not b
e indicative o
f results ob
tained when t
h
ese
trial
s
Trial designs
and result
s from previo
us or ongoi
ng trials are
not necessar
ily predictiv
e of future c
linical tr
ial
results, and i
nitial or int
erim result
s may not contin
ue or be confirme
d upon compl
etion of the tr
ial.

There are limit
ed data concerning l
ong
-
term safet
y and efficacy fol
lowing treatmen
02, CYA
D
-
101 and CYAD
-
211. Our
P
andidates may fail to sho
w the desired s
afety and effic
acy in later st
ages
of clinical d
evelopment des
pite havi
ng success
fully advanc
ed through init
ial clinica
l trials.
There can be n
o
assurance that
any of these t
rials will ultim
ately be succ
essful or supp
ort further c
linical advanc
ement or
In December
, the Com
pany made th
e strategic
decision t
o discontin
ue the develo
pment of it
s
first-
generation aut
ologous NKG2
D CAR T candidate CY
AD
-
01 for the t
reatment of r
elapsed / refract
ory acute
myeloid leuke
mia (AML) an
d myelodysplas
tic syndrom
es (MDS) bas
ed on data from
the Phase 1 THI
NK
and DEPLETH
INK trials whic
h did not achi
eve the neces
sary intern
al clinical
activity thr
eshold set for
the
The Compan
y may be adversely affected
by natural
disasters and/o
r global health pan
demics, and
its busin
ess, financial
conditions an
d results o
f operations co
uld be adversel
y affected
.
On March
11, 2020,
the World Hea
lth Organiz
ation declar
ed the nove
l strain of cor
onavirus (CO
VID
-
19) a
global pandemi
c and recomme
nded containm
ent and mitigat
ion measures
worldwid
e.
Through
out 2020 an
d
2021
, Belgium
and the Unit
ed States, wher
e the Compa
ny operat
es, have be
en impacted by t
emporary
closures. T
he length or severity
of this pandemic cann
ot be predicte
d, but the Company
anticipates th
at
there may be an ad
ditional i
mpact from a prol
onged COV
ID
-
19 environ
ment on the plann
ed develop
ment
T
imely enrollm
ent in clinica
l trials is rel
iant on clinic
al trial sit
es which may
be adversely
affected by gl
obal
health matter
s, including, am
ong other things
, the ongoin
g COV
ID-
19 pand
emic and the emergi
ng variant
s,
such as Delta
and Omicron
. W
it
h regards to our c
linical p
rograms, CYA
D
-
02, CYAD
-
1
01 and CYAD
were slightly i
mpacted by the cor
onavirus pandem
ic throughout
2020. Enrollm
ent in the respect
ive trials f
or
these assets is ongoi
ng without any m
ajor disruption,
partially due t
o the staggered enroll
ment associat
ed
with the dose
-
escalation trials for CYAD
-
02 and CY
AD
-
211, r
espectively,
and the expans
ion segment
of the
CYAD-
101 trial whi
ch began i
n late 2020. H
owever, cer
tain clinic
al sites
and instit
utions h
ave not been
able
to receive vis
its from us
or our repres
entatives,
which has del
ayed our data
monitoring ac
tivities
our ability to loc
k the databases f
or completed s
tudies
.
The long
19 on the Compa
ny’s
operations wil
l depend on futur
e development
s, which
are highly uncertain an
d cannot be predi
cted,
including a pot
ential seco
nd wave of the p
andemic, new i
nformation wh
ich may emerg
e concerni
ng the
severity of t
he coronavirus
and the acti
ons to cont
ain the coronav
irus or tre
at its impact
, among other t
hings
,
but potentia
l prolonged c
losures or ot
her busi
ness disrupt
ions may neg
atively af
fect its op
erations an
d the
operations of i
ts agents, cont
ractors, c
onsultants or c
ollaborators,
which could have a
material adv
erse
impact its busi
ness, results
of operati
ons and financ
ial condit
ion.
In addition,
after enroll
ment in thes
e trials, i
f patients c
ontract COVI
D
-
19 during parti
cipation in t
he
Company’s tri
als or are subj
ect to isolat
ion or shelter
pl
ace restrict
ions, t
hey may drop out of t
he trials,
miss schedu
led follow
-
u
p visit
s or otherwise
fail to follo
w trial pr
otocols. If
patients ar
e unable to f
ollow the
trial protoco
ls or if the Company’s
trial resu
lts are otherwi
se disputed du
e to the effect
s of the COVID
pandemic or ac
tions take
n to mitigat
e its spread,
the integr
ity of data f
rom the trials
may be compr
omised
or
not accepted b
y the FDA or other
regulatory
authorities,
which would repr
esent a sign
ificant
setback for th
e
applicable prog
ram.
Celyad has
not experienc
es such issues
to date regar
ding COVID
-
Some factors from the COVID
-
19 pandemic that the Company bel
ieves may adver
sely affec
t enrollment in
•
The
diversion of
healthcare resour
ces away f
rom the conduct of
clinical trial mat
ters to focus o
n
pandemic con
cerns, includi
ng the attent
ion of physicians
serving as t
he Company’s cli
nical trial
investigator
s, hospita
ls servin
g as the clini
cal trial sit
es and hospi
tal staff supp
orting the c
onduct o
f

•
Some
patients
who would ot
herwise be ca
ndidates f
or enrollme
nt
in the C
ompany’s cli
nical trial
s
are at increas
ed risk of sev
ere effec
ts of the coro
navirus, which m
ay lead t
o the death of s
ome
patients and rend
er others too ill to par
ticipate, li
miting the avai
lable pool of part
icipants
for the
•
The
fact that
there can be no guarante
e that any propose
d changes to our prot
ocols, if necess
ary,
would be acce
ptable to regul
ators;
•
Limitat
ions o
n travel that
interrupt k
ey trial ac
tivities, suc
h as clinic
al trial site
initiations
and
•
Interruptio
n
in global shi
pping aff
ecting the transpor
t of clinical tr
ial materials bei
ng used in our
Except as ment
ioned above, Cel
yad has not
experienced s
uch issues t
o date regar
ding COVI
D
-
These and oth
er factors
arising from t
he COVID
-
19 pandemic cou
ld worsen i
n countri
es that are al
ready
afflicted wi
th the virus or
could conti
nue to spre
ad to additi
onal count
ries, each of
which may f
urther
adversely impa
ct the Company
’s clinical tr
ials. The global o
utbreak of the CO
VID
-
19 pandemi
c continue
s to
evolve,
and
t
he conduct of
the Company’s t
rials may conti
nue to be advers
ely affected
, despite effort
s to
Even if we are abl
e to enroll a s
ufficient num
ber of patients
in our clinica
l trials, delay
s in patient
enrollment
may result in inc
reased costs
or may affect
the timing or outcom
e of the Company’s
clinical tria
ls, which
could prevent
completion of thes
e trials and adv
ersely affe
ct our ability to advanc
e the developme
nt of the
Company’s pr
oduct candid
ates.
2.8.7.
Risks rel
ated to
legal an
d
The Company
is heavily de
pendent on the re
gulatory approval
of its Product C
andidates in t
he
United Stat
es and Europe.
The Company is
a clinical
-
stage bioph
armaceutic
al company wit
h no products appr
oved by regulat
ory
authorities or
available for
commercial sale.
The Company may be unabl
e to develop or com
mercialize
a
product, prod
uct candi
date or resear
ch prog
ram, or may c
ease some of i
ts operati
ons, which m
ay have a
material adver
se effect on t
he Company’s bus
iness.
The Company
has generat
ed limite
d revenue t
o date and does
not expec
t to generate
any revenue fr
om
product sales f
or the fores
eeable fut
ure. The Com
pany’s abil
ity to gener
ate revenues
in the near
term wil
l
depend on its
ability to obt
ain regulat
ory approv
al and succ
essfully com
mercialize Pr
oduct Candi
dates in
the United States,
the first countr
y in which the Company
intends to seek approv
al for these candi
dates. T
he
Company may ex
perience de
lays in obta
ining reg
ulatory appr
oval in the U
nited States f
or these Prod
uct
Candidates,
if it
is approved
at all, and
the price of
its ordinary
shares a
nd/or ADSs m
ay be negat
ively
impacted. Ev
en if the Com
pany rece
ives regul
atory appro
val, the tim
ing of the com
mercial
launch of t
he
Product Cand
idates in t
he United States
is depen
dent upon a
number
of factor
s, including,
but not limi
ted
to, hiring sales
and marketing
personnel, pri
cing and reimb
ursement ti
melines, the produ
ction of suff
icient
quantities of c
ommercial dr
ug product
and implement
ation of mar
keting and distr
ibution in
frastruct
ure
Nearly all asp
ects of the Compan
y’s activiti
es are subject to
substantial r
egulation. No assu
rance
can be given th
at any of the Comp
any’s prod
uct candidates w
ill fulf
ill regulator
y compliance.
The internation
al pharmaceut
ical and medica
l technology in
dustry is highly r
egulated by gover
nment bodie
s
(hereinafter t
he “Compet
ent Authorit
ies”) th
at impose sub
stantial r
equirement
s covering ne
arly all as
pects
of the Compan
y’s activities
notably o
n research an
d develo
pment, manuf
acturing, pr
eclinic
al tests, cli
trials, labell
ing, mark
eting, sales,
storage, rec
ord keeping,
promotion and
pricing of it
s research progr
ams
and product ca
ndidates. C
ompliance
with stand
ards laid d
own by local
Competent
Authorities
is requir
ed in
each country wher
e the Company, or any
of its partners or l
icensees, conduc
ts said activit
ies in whole or in

part. The Compet
ent Authorit
ies notably inc
lude the Europ
ean Medicine A
gency (“EMA
”) in the European
Union and the F
ood and Drug
Administrati
on (“FDA”
) in the United S
tates.
There can be no as
surance th
at product can
didates of t
he Company will f
ulfill the cr
iteria requir
ed to obtai
n
necessary reg
ulatory aut
horization t
o access t
he market. Als
o, at this tim
e, the Company c
annot guarant
ee
or know the exact
nature, prec
ise timing and det
ailed costs
of the effort
s that will be nece
ssary to compl
ete
the remainder
of the develop
ment of its res
earch program
s and product
candidates.
The specific r
egulations
and laws, as
well as the t
ime requir
ed to obtain Com
petent Aut
horities ap
provals,
may vary from c
ountry to cou
ntry, but the ge
neral regulat
ory proced
ures are si
milar in the E
uropean Uni
on
and the United Stat
es. At any
Compete
n
t Authoriti
es may require disc
ontinuati
on or holding of
clinical
trials or requi
re addition
al data prior to c
ompleting t
heir review or m
ay issue rest
ricted author
ization
or
authorize pro
ducts for c
linical trials or
marketing for narr
ower indicatio
ns than re
quested or requir
e further
data or studies be cond
ucted and submitt
ed for their rev
iew. There can be no guarante
e that such additio
nal
data or studies
, if required,
will corrob
orate earlier
data.
2.8.8.
Risks rel
ated to
intell
ectual p
ropert
y
The Company
could be unsuccess
ful in obtaining or ma
intaining adequate pa
tent protection for o
ne
or more of it
s Product Candid
ates.
The patent app
lication proc
ess is expens
ive and time
-
c
onsuming,
and the Comp
any and its
current or fut
ure
licensors a
nd licensees
may not be a
ble to apply f
or or pros
ecute patents
on certain as
pects of
its Product
Candidates or del
iver techn
ologies at a reas
onable cost,
in a timely f
ashion, or at all.
It is also possib
le that
the Company or
its current li
censors, or an
y future licens
ors or licens
ees, will fail t
o identify pat
entable
aspects of inv
entions made i
n the course
of development
and commerc
ializati
on activitie
s before it is to
o
late to obtain p
atent protect
ion on them. T
herefore,
its patents
and applicat
ions may not be pros
ecuted and
enf
orced in a m
anner consist
ent with the b
est interest
s of its busin
ess. It is possi
ble that defect
s of form in
the preparati
on or filin
g of its patent
s or patent
applications
may exist,
or may arise
in the futur
e, such as
with respect to pr
oper priority
claims, inve
ntorship, c
laim scope or patent
term adjustment
s. Under it
s existing
license agree
ments with the T
rustees of Dart
mouth Colleg
e, the Company
has the right,
but not the
obligation, t
o enforce its licen
sed patents. I
f its current licen
sors, or any fut
ure licensors
or licensees,
are not
fully cooper
ative or dis
agree with t
he Company as t
o the prosecut
ion, maint
enance or en
forcement of a
ny
patent rights
, such patent r
ights could be c
ompromised an
d the Company
might not be able to pr
event thir
d
parties from m
aking, usi
ng, and sell
ing compet
ing product
s. If t
here are material
defects
in the form
or
preparation of
its patent
s or patent
applicat
ions, such
patents or ap
plications m
ay be inval
id and
The Company curr
ently has issued p
atents and pate
nt applicat
ions directe
d to its Product
Candidates an
d
medical devic
es, and the Company ant
icipates that
it will file additio
nal patent appli
cations in sev
eral
jurisdictio
ns, includi
ng several
European Uni
on countries a
nd the United
States, as appr
opriat
The Company c
annot be ce
rtain, however
, that the c
laims in it
s pending pat
ent applic
ations wi
ll be
considered p
atentable by
patent off
ices in vari
ous countri
es, or that
the claims in
any of it
s issued pat
ents
will be conside
red valid and e
nforceable
by
The strength of pat
ents in the biotechn
ology and pharm
aceutical fiel
d can be uncertai
n and evaluatin
g the
scope of such
patents involv
es complex le
gal and scient
ific analys
es. The patent
applicatio
ns that th
e
Company own
s, or in
y fail to
result in issu
ed patents with c
laims that cov
er its Product
Candidates or
uses thereof
in the Eur
opean Unio
n, in the Unit
ed States or
in other jur
isdict
ions. Even if
the
patents do suc
cessfully iss
ue, thir
d parties may c
hallenge the v
alidity, enf
orceab
ility, or sco
pe thereof,
which
may result in s
uch patents
being narr
owed, in
validated,
or held une
nforceabl
e. Furthermor
e, even if
they are
unchallenged,
its patents
and patent applic
ations may not
adequately pro
tect its i
ntellectual pro
perty or
prev
ent others
from desig
ning their pr
oducts to avoi
d being cover
ed by its claim
s. If the breadt
h or streng
th
of protection pr
ovided by the patent
applicati
ons the Company
holds with respect t
o its Product Candidat
es
is threatened,
this could dissu
ade companie
s from collabor
ating with the
Company to devel
op, and could

threaten its abi
lity to commer
cialize, its
Product Candid
ates. F
urther, because patent
applicati
ons in most
countries ar
e confident
ial for a per
iod of tim
e after fili
ng, the Compa
ny cannot b
e cert
ain that the C
ompany
was the first t
o file any patent
applicati
on related t
o its Produc
t Candidates.
Patents have a
limited lifes
pan. Various ext
ensions may b
e available; ho
wever, the lif
e of a patent, an
d the
protection it
affords, is l
imited.
Further, the ex
tensive per
iod of time b
etween patent
filing and r
egulator
y
approval for a
product cand
idate limits t
he time duri
ng which the Com
pany can mark
et a product
candidate
under patent pr
otection, whi
ch may particul
arly aff
ect the profitabil
ity of its e
arly
-
stag
e Product Cand
idates.
If the Company
encounters d
elays in its cli
nical trials,
the period of
time during wh
ich the Company c
ould
market its Pr
oduct Candidat
es under patent
protection wo
uld be reduced
. Without patent
protection fo
r its
Product Candi
dates, the Co
mpany may be open t
o competitio
n from biosimi
lar versions of
its Product
Filing, prosec
uting and defe
nding patents
on product candid
ates in all coun
tries throug
hout the world wou
ld
be prohibitivel
y expensive.
In addition, the la
ws of some foreig
n countries do not pr
otect intellec
tual proper
ty
rights to th
e same extent
as laws in t
he Euro
pean Union or
the United St
ates. Cons
equently
, the Compan
y
may not be able to prevent third par
ties from
practicing its invent
ions in all count
ries, or
from sel
ling or
importing pro
ducts made usi
ng its invent
ions in and i
nto other jurisd
ictions.
The Company
’s patents and o
ther intellect
ual property rights
portfolio is r
elatively young a
nd may
not adequ
ately protect it
s research prog
rams and produ
ct candi
The Company’s
success will dep
end in part on the ab
ility of
the Company to obt
ain, maintain a
nd enforce
its patents a
nd other int
ellectual pr
operty righ
ts. The Com
pany’s resear
ch program
s, and product
candidat
es
are covered by
several patent
application f
amilies, which a
re either lic
ensed to the Com
pany or owned
by
the Company.
Out of the num
erous patent
applicatio
ns contr
olled by the C
ompany,
national p
atents
have been gra
nted in the US
relating t
o the field
of immuno
-
oncology.
T
he Company
annot guara
ntee that
it will be in a
position in t
he future to d
evelop new
patentable
inventions
or that the C
ompany or it
s licensor
s
will be able to
obtain or mai
ntain these p
atent rights
against chal
lenges t
o their validit
y, scope and/
or
enforceabili
ty. Moreover,
the Company
may have
little or no
control over
its licens
ors’ abilit
ies to preve
nt the
infringement
of their p
atents or t
he misappropr
iation of the
ir intellect
ual prop
erty. Ther
e can be no ass
urance
that the techno
logies used in the Com
pany’s res
earch prog
rams and product
candidates
are patentable I
f
the Company or
its licensors
do not obtai
n meaningfu
l patents on t
heir tec
hnologies or
if the patent
s of the
Company or its l
icensors are
invalidated,
third parties may
use the techn
ologies without
payment to t
he
Company. A thir
d party’s abi
lity to use un
patented tec
hnologies is
enhanced by the f
act that t
he publishe
d
patent applic
ation contai
ns a detailed d
escription of
the relevant
technology
.
The Company cann
ot guarantee t
hat third part
ies, contrac
t parties or employ
ees will not
claim ownershi
p
rights over the
patents or oth
er intellec
tual property
rights owned or
held by the Com
pany.
The Company als
o relies on pr
oprietary know
-
how to protect
its research pr
ograms and pr
oduct candidat
es.
Know
-
how i
s dif
ficult to mai
ntain and prot
ect. The Com
pany uses re
asonable ef
forts to
maintain its k
now
-
how, but it ca
nnot assur
e that its
partners,
employees,
consultant
s, advis
ors or other t
hird parti
es will not
willfully or u
nintentio
nally disclos
e proprietar
y informatio
n to competitors
.
As far as the Compa
ny is aware, it
s intellectual pr
operty has
not been challeng
ed otherwis
e than by pate
nt
offices in the n
ormal course o
f examinati
on of its patent
applications
or misappr
opriated.
The Company
depends on intellec
tual property licens
ed from third partie
s and termination of any
of
these license
s could resu
lt in the loss o
f significan
t rights, which
would harm its bu
siness.
The Company is
dependent o
n patents, k
now
-
how, and pr
oprietary
tec
hnology, both it
s own and licensed
from others.
The Company’s
licenses t
echnology fr
om the Trus
tees of Dartmout
h College, or D
artmout
h
College. Dart
mouth College m
ay terminate t
he Company’s li
cense, if the Com
pany fails to m
eet a milestone
within the sp
ecified time
period,
unless the Co
mpany pays t
he corres
ponding miles
tone pay
ment. Dartmo
uth
College may t
erminate either
the license in t
he event the C
ompany def
aults or breach a
ny of the prov
isions

of the applic
able licens
e, subject t
o 30 days’ prior
notice and o
pportunity
to cure. I
n addition, t
he licens
e
automatically
terminates i
n the event the Company bec
omes insolv
ent, make an ass
ignment for
the benefit
of creditors
or file, or hav
e filed ag
ainst us, a
petition in
bankruptcy
. Further
more, Dartmo
uth Colle
ge may
terminate th
e Company’s
license, aft
er April 30,
2024, if t
he Company fa
ils to meet
the specifi
ed minimum
net sales oblig
ations for a
ny year (USD 10 mi
llion during f
irst year of
sales, USD 40 milli
on during the s
econd
year of sales and USD 100 m
illion dur
ing the third year
of sales and every
year of sales thereaf
ter), unle
ss
the
Company
pay
s to Dartmou
th College t
he royalty
the Company
would oth
erwise be ob
ligated to
pay had
the Company
met
such minimum net
sales obligat
ion.
Since 2018, t
he Com
also lice
nses tech
nology from H
orizon Disc
overy Limi
ted
(r
ecently ac
quired by
Perkin Elmer) (“
Horizon
/PKI”) t
hrough resear
ch and developm
ent collab
oration and lic
ense agreem
ents
.
Horizon
/PKI
m
ay terminate th
e Company’s li
cense in case of insol
vency, m
aterial breac
h or force majeur
e.
Any terminatio
n of these licens
es or any of the Company
’s other licens
es could result
in the loss of signif
icant
rights and coul
d harm its abilit
y to commercialize it
s Product Candid
ates. On F
ebruary 18, 2021, Horiz
on
Disco
very Group plc / PerkinElmer, Inc. (Horizon/PKI) informed
Celyad
breach of
as a result
of certain d
isclosures
made in co
nnection wit
h
obligations as
a publicly tr
aded compa
ny in the United St
ates and Belg
ium
recently inf
ormed
Celyad
that un
less Cely
ad is able to r
each agreement
rega
rding the purp
orted materi
al breach
,
they may
elect to serve
a notice of
terminatio
n.
We believe
any such asse
rtion of mater
ial breach woul
d be
without merit
and we would expect to v
igorously defen
d any such notice of
material breach.
Any dispute
under these agreem
ents would be subj
ect to arbitr
ation in The Hague un
der the Interna
tional Chambe
r of
Commerce Rul
es. We are current
ly in discus
sions with Hor
izon
/PKI to settle thi
s matter.
filed patent
applications
which,
if issued,
would cover
other aspec
ts of the pr
oduct can
didates des
cribed
above as wel
l as products
developed
by third par
ties that
deploy simi
lar techno
logy an
d targets. The
se
patent applic
ations encom
pass the do
wnregulat
ion of one or
more of the tar
gets covered
under the H
orizon
/PKI
agreem
ents, the use of s
hRNA to downr
egulate such tar
gets in immune cell
s and the combi
nation of
shRNAs with a chim
eric antigen rec
eptor in immune ce
lls. We are also d
eveloping a se
cond
shRNA platfor
m that does
not incorpor
ate any of
the Hori
zon
technology d
escribe
d above.
allogeneic CA
R T product ca
ndidate, CYAD
-
101, does not
incorporat
e any of the Hor
izon
described abo
ve
211 and CYAD
-
203 (next gen
eration NK
G2D) use the HD/
PKI shRN
A
scaffold. We bel
ieve that CYAD
-
211 could be impact
ed by a potential t
ermination.
We believe the timelin
e
associated wit
h the clinical
development
and potenti
al commercial
ization of t
he preclinical ass
et may fall
after the IP exclus
ivity of the HD/
PKI shRNA scaf
fold. However
, the emerging dat
a from the program i
s likely
to have an impact
on the future prosp
ects of the ass
et. For CYAD
-
2
03, we believe t
he timelin
e associat
ed
with the clinica
l developm
ent and potenti
al commercia
lization of t
he preclinic
al asset are
likely to fall aft
er
the IP exclusivi
ty of the HD/PKI
shRNA scaffold.
As such, would have l
ess of a materi
al impact on the asset.
Disputes may
also arise betw
een the Company and its
licensors regar
ding intell
ectual propert
y subject to a
license agreem
ent, inclu
ding those relat
ing to:
•
The scope of right
s granted u
nder the licens
e agreeme
nt and other inter
pretation
•
Whether and t
he extent to w
hich its t
echnology and
processes inf
ringe on int
ellectual
property o
f
the licensor t
hat is not subject
to the licens
e agreement;
•
Its right to s
ublicense pat
ent and other
rights t
o third parti
es under coll
aborativ
e develo
•
The amount and t
iming of mile
stone and roya
lty payments;
•
Whether the compa
ny is complyin
g with its diligenc
e obligati
ons with respect t
o the use of the
licensed tech
nology in relati
on to its dev
elopment and com
mercializati
on of its product
c
•
The allocatio
n of ownershi
p of inventio
ns and know
-
how resultin
g from the joi
nt creation
or use of
intellectua
l property by t
he company and it
s partners a
nd by its licensor
s.
If disputes ov
er intell
ectual proper
ty that the
Company has l
icensed prev
ent or im
pair its abilit
y to maintai
n
its current licen
sing arrang
ements on acce
ptable terms
, the Company may be unabl
e to succes
sfully deve
lop
and commerci
alize the af
fected Produc
t Candidat
es. The
Company is g
enerally als
o subject
to all of t
he

same
risks with respect to protection of
intellect
ual property that
the Company licens
es as it is for int
ellectua
l
property that
the Company
owns, which
are descr
ibed below. If
the Compa
ny or its lice
nsors fail
to
adequately pro
tect this int
ellectual prop
erty, the Comp
any’s abilit
y to commercial
ize its pro
ducts could suf
fer.
The licenses o
f the Company may
be terminated if
it is unable to meet t
he payment obl
igations under t
he
agreements (n
otably if the C
ompany is una
ble to obtai
n additional f
inancing)
.
The Comp
any may infringe on the patents or int
ellectual p
roperty right
s of others and may face
patent lit
igation, whi
ch may be costly and
time consumin
g.
The Company’
s success w
ill depend in
part on its
ability t
o operate wit
hout infr
inging on o
r misappropr
iating
the intellectu
al property
rights of others
. The Company can
not guara
ntee that its
activities
will not infri
nge
on the patents
or other intel
lectual pro
perty right
s owned by
others. The C
ompany may e
xpend signif
icant
time and effor
t and may incur
substanti
al costs in lit
igation if it
is required to def
end again
st patent or ot
her
intellectua
l property rig
ht suits
brought agai
nst the Compa
ny regardless
of whether
the claims h
ave any
merit. Additi
onally, the
Company c
annot pre
dict whether
it or its
licensors
wi
ll be success
ful in any litigati
on.
If the Company or it
s licensors are f
ound to infringe on the patent
s or other intellec
tual propert
y rights of
others, it may be sub
ject to substant
ial claim
s for damages,
which could materi
ally impact
the Company’s
cash
flow and f
inancial p
osition. T
he Company may
also be r
equired to ce
ase developm
ent, use or
sale of
the relevant re
search progr
am, product
candidat
e or process
or it may be requ
ired to obt
ain a license o
n the
disputed right
s, which may n
ot be available o
n commerci
ally reason
able terms
, if at all.
There can be no assur
ance that the Com
pany is
even awar
e of third
-
party r
ights that may be alleg
ed to be
relevant to any
particular
product candi
date, method,
process or
technology
.
The Company
may spend s
ignificant
time and eff
ort and may
incur subst
antial costs
if required t
o defen
d
against any inf
ringement
claims or
to assert it
s intellect
ual proper
ty rights aga
inst third
parties. T
he risk of
such a claim by
a third party m
ay be increased by t
he Company’s
public anno
uncement r
egarding it
s
research progr
ams and product
candidates.
The Company may not be successf
ul in defendin
g its rights
against suc
h procedures or
claims and m
ay incur
as a conseq
uence ther
eof significa
nt losses,
cost
delays in its int
ended commer
cializatio
n plans as a r
esult thereof.
The Compan
y has not yet finalized
its clinical devel
opment prog
ram for CYAD
-
02 for t
he treatment
of patient
s with relapsed
/ refract
ory AML
101, th
e allogen
eic NKG2D CAR
for the treatment o
f mCRC or CYAD
allogeneic BCMA CAR
-
T for the treatment of r/r multiple
myeloma (MM
). Regulat
ors may not agre
e with
its proposed p
rotocols f
or these clin
ical trials,
which
The Company is
still consider
ing the clinic
al developm
ent program f
or CYAD
-
02 in r
elapsed /
refractory AM
L
and MDS, CYAD
-
10
1 for mCRC and
CYAD
-
211 for
relapsed
/ refractor
y MM. Prior
to initiating
new clini
cal
trials for its
Product
Candidat
es, the Com
pany is requir
ed to submi
t clinical
trial prot
ocols f
or these trial
s to
the FDA and compar
able fore
ign regulator
s in other j
urisdict
ions where th
e Company pl
ans to underta
ke
clini
cal tria
ls. The Compa
ny may not re
ach agreem
ent with these r
egulat
ors, or there m
ay be a delay
in
reaching agree
ment. These regu
lators may want
to see additional c
linical
or preclinical dat
a regarding
its
Product Candi
dates before t
he Company init
iates new
cli
nical trials.
Any of these decis
ions could have a
material adv
erse effect
on its expecte
d clinical an
d regulat
ory timelin
es, busines
s, prospect
s, finan
cial
condition and r
esults of op
erations.
2.8.10.
Risks lin
ked to t
he Comp
any’s r
elianc
e on thi
rd parti
es
Ce
ll
-
based therapi
es rely on th
e availabili
ty of special
ty raw materi
als, wh
ich may not be avail
able to
the Company o
n acceptable t
erms or at all
.

Engineered
-
c
ell therapies
require many spe
cialty raw materi
als, some of which are m
anufactured by s
mall
compan
ies wit
h limited resou
rces and exper
ience to suppor
t a commercial produc
t. The supplier
s may be
ill
-
equipped to
support t
he Company’s ne
eds, especia
lly in non
-
ro
utine circum
stances like
an FDA inspec
tion
or medical crisi
s, such as widesprea
d contaminatio
n.
The Company also does not hav
e contracts with m
any
of these sup
pliers and may
not be abl
e to contrac
t with the
m on accepta
ble terms or
at all. A
ccordingly, t
he
Company may ex
perience d
elays in recei
ving key raw
materials to
support clinic
al or commer
cial
In addition, so
me raw materi
als are curr
ently avail
able from
a single supp
lier, or a sm
all number of
supplier
s.
The Company cann
ot be sure that
these suppliers wi
ll remain in busi
ness, or that
they will not be pur
chased
by one of its com
petitors or an
other Compan
y that is not
interested in cont
inuing to pro
duce these mat
erial
s
for its intende
d purpose.
Since the begi
nning of the C
OVID
-
19 pand
emic, three
19 were g
ranted Emerge
ncy
Use Authorizat
ion by the FDA,
and more are likely to be
authorized i
n the coming mo
nths. The res
ultant
demand for vac
cines and potent
ial for manu
facturing faci
lities and mat
erials to be com
mandeered und
er the
Defense Prod
uction Act of 195
0, or equivale
nt foreign legisl
ation, m
ay make it more diff
icult to obt
ain
materials or m
anufactur
ing slots f
or the produc
ts needed fo
r the Company
’s clinic
al trials, whi
ch could le
ad
to delays in the
se trials.
However, f
or the time bei
ng, Celyad has not
experienc
ed such issue.
If third part
ies conducti
ng clinical
trials do not success
fully carry ou
t their con
tractual duti
es, the
Company may n
ot be able to obt
ain regulato
ry approval fo
r or commerci
alize its Produ
ct Candidates.
The Company r
elies on clinica
l research orga
nizations,
or CROs, clinical
investigat
ors and
to ensure its cl
inical trials ar
e conducte
d properly and o
n time. While t
he Company wi
ll have agreem
ents
governing the
ir activi
ties, the Com
pany will
have limit
ed influence
over their act
ual perfor
mance. T
he
Company will cont
rol only cert
ain aspects of i
ts CRO’s activities.
Neverthel
ess, the Company wil
l be
responsible f
or ensuring that
each of its cl
inical trials is cond
ucted in accor
dance with the a
pplicable prot
ocol,
legal, and re
gulatory re
quirement
s and scient
ific stand
ards, and
its reli
ance on thes
e third par
ties does n
ot
relieve the Co
mpany of its re
gulatory respo
nsibiliti
es.
The Company and t
hese thir
d parties ar
e require
d to comply
with the GCP
’s (from both F
DA and EMA)
for
conducting,
recording and r
eporting t
he resul
ts of clinica
l trials to ass
ure that the d
ata and report
ed result
s
are credible
and accurat
e and that t
he right
s, integrity
and conf
identiali
ty of clinic
al trial par
ticipants
are
protected. If
the Company or its
CROs fail to comply wit
h applica
ble GCP’s, t
he clinical dat
a generated i
n its
future clinic
al trials
may be deem
ed unreliabl
e and the FDA,
the EMA,
or other fore
ign regulat
ory author
ities
may require the Com
pany to perfor
m additional cl
inical tr
ials before appr
oving any mark
eting applicat
ions.
Upon inspecti
on, the FDA or
the EMA may deter
mine that
its clinical t
rials did not
comply with G
CP’s. In
addition, its f
uture clinical t
rials will
require a suff
icient number of
test subjects
to evaluate the saf
ety and
effectiveness
of its P
roduct Candidates.
Accordin
g
ly, if its CRO’s fail to co
mply with these regulat
ions or fail
to recruit a suf
ficient number
of patients,
the Company
may be required t
o repeat s
uch clinical tr
ials, whic
h
would delay th
e regulatory a
pproval pr
ocess.
Its CRO’s are
not the Comp
any’s employ
ees, and the C
ompany is th
erefore u
nable to dir
ectly moni
tor
whether or not
they devote s
ufficient tim
e and resources
to its clini
cal and prec
linical progr
ams. These t
hird
parties may als
o have rel
ationships w
ith othe
r commercia
l entities,
including it
s compet
itors, f
or whom they
may also be conduc
ting clinic
al trials
or other prod
uct developm
ent activiti
es that could h
arm the Com
pany’s
competitiv
e position. If
these third par
ties do not suc
cessfull
y carry out their
contractual d
uties or oblig
ations,
fail
to meet
expected deadl
ines,
or if the quality or acc
uracy of the clinic
al data they obt
ain is compr
omised
due to the fai
lure to adher
e to the Com
pany’s clin
ical proto
cols or regul
atory requi
rements
, or for any ot
her
reasons, the C
ompany’s cl
inical trials
may be
extended, d
elayed or t
erminated, an
d the Company
may not
be able to obtain r
egulatory appr
oval for, or
successfully c
ommercialize,
its Product Can
didates. I
f any such
event were to occ
ur, the Company’s f
inancial result
s and the commercial pr
ospects f
or its Product
Candidates wo
uld be harmed,
its cost
s could increas
e, and its
ability to gen
erate reve
nues could be del
ayed.

If any of the
Company’s r
elationshi
ps with the
se third
party CRO’s
terminate
, the Company
may not be a
ble
to enter into arr
angements wi
th alternativ
e CRO’s or to do so on c
ommercially re
asonable t
erms. Further
,
switching or a
dding addit
ional CRO’s
involves
additional costs and req
uires mana
gement time and f
ocus. In
addition, ther
e is a natural t
ransition peri
od when a new CR
O commences w
ork. As a result
, delays occur
,
which could m
aterially im
pact it
s ability to
meet its d
esired clinic
al develo
pment tim
elines. Tho
ugh the
Company caref
ully manages
its relations
hips with its C
RO’s, there can be n
o assurance t
hat the Compa
ny
will not encount
er challen
ges or delays in t
he future or that t
hese delays or chall
enges will n
ot have a mater
ial
adverse impact
on its busines
s, financia
l conditio
n and prospect
s.
The Compan
y relies and will continu
e to rely on collaborati
ve partners reg
arding the develo
pment
of its researc
h programs an
d product can
didates.
The Company is and expect
s to continue t
o be dependent on collab
orations with par
tners relat
ing to the
develo
pment a
nd commerci
alization
of its exis
ting and fut
ure research
programs a
nd product c
andidates
.
The Company had,
has and will c
ontinue t
o have discus
sions on pot
ential part
nering oppor
tunities
with
various phar
maceutic
al and medic
al device
companies. If
the Com
pany fails
to enter i
nto or maint
ain
collaborati
ve agreements
on reasonabl
e terms or at all
, the Company'
s ability to devel
op its exist
ing or futur
e
research progr
ams and produ
ct candidates c
ould be delayed,
the commercial pot
ential of i
ts products c
ould
change,
and it
s costs of devel
opment and co
mmercializ
ation could incr
ease.
The Company's depen
dence on collab
orative part
ners subjec
ts it to a number of risk
s, including, but
not
limited to, the f
ollowing:
•
The
Company may be required to relinq
uish signific
ant rights,
including intell
ectual prop
erty,
marketing and
distribution r
ights;
•
The
Company
relies on th
e informat
ion and data r
eceived fr
om third part
ies regardin
g its resear
ch
programs and
product can
didates and w
ill not have c
ontrol of t
he process
conducted by
the third
party in gatheri
ng and compo
sing such data
and informat
ion. The Comp
any may not ha
ve formal
or appropriat
e guarantees f
rom its contr
act parties with res
pect to the qualit
y and the comp
leteness
•
A
collabor
ative partner m
ay devel
op a competing
product eit
her by itself
or in colla
boration w
ith
others, incl
uding one or mor
e of the Compan
y's competit
ors;
2.8.11.
Risks rel
ated t
o the sh
ares
The market pr
ice of the shar
es may fluctu
ate widely i
n response to vari
ous factors.
A
number of factors m
ay signif
icantly affect
the market
price of the Sh
ares. T
he main factors
are change
s in
the operatin
g results of the C
ompany and it
s competitors
, announceme
nts of technolo
gical innovat
ions or
results conc
erning the prod
uct candidat
es, chang
es in earnings es
timates by
analysts.
Other factor
s which could c
ause the pric
e of the shar
es to fluct
uate or coul
d influence t
he reputation of
the
Company inclu
de, amongst
other things:
•
Developments
concerning int
ellectual pr
operty r
ights, includi
ng p
•
Public informat
ion regar
ding actual or
potential r
esults relat
ing to product
s and prod
uct candidat
es
under develo
pment by the co
mpany’s comp
etitors;
•
Actual or pote
ntial result
s relating t
o products and pr
oduct candidat
es under dev
elopment
by the
•
Developments
concerning int
ellectu
al propert
y rights, inclu
ding patent
s;
•
Regulatory an
d medicine pr
icing an
d reimburs
ement deve
lopments i
n

•
Any publicity der
ived from any bus
iness affair
s, contingenc
ies, litigat
ion or other procee
dings, th
e
company’s as
sets (includ
ing the imposit
ion of any lien)
, its managem
ent, or its signif
icant
shareholders o
r collaborat
ive partners;
•
Divergences
in financial r
esults from
stock market expec
tations;
•
Changes in the gener
al conditions i
n the pharmaceutic
al industr
y and general economi
c, financi
al
market and bu
siness conditi
ons in the co
untries in w
hich the compa
ny operates;
and
•
Any publicity d
erived from
data protectio
n or cybersec
urity br
eaches.
In addition, st
ock market
s have from t
ime to time exper
ienced extr
eme price an
d volume volat
ility whic
h, in
addition to ge
neral econ
omic, financ
ial and pol
itical condi
tions, c
ould affect t
he market pric
e for the Shar
es
regardless of t
he operating r
esults or financ
ial con
dition of t
he Company.
Future sales o
f substanti
al amount
s of shares, or t
he perceptio
n that such sal
es could occu
r, could
adversely aff
ect the mark
et value of th
e shares
Sales of a substant
ial number of
s
hares in the public m
arkets, not
ably by its major shar
eholders (CF
IP CLYD
LLC holding 28
.77% and TOLEF
I SA holding 10.16 %
of the Shares),
or the percept
ion that such sal
es might
occur, might ca
use the market
price of the
s
h
ares to declin
e. The
not m
ake any predic
tion as
to the effect
of any such sales or
perception of
potential sal
es on the mark
et price of the
s
Certain sign
ificant shareh
olders of th
e Company may h
ave different
interest
s from the Co
mpany and
may be a
ble to control the out
co
me of sharehold
er votes
On the basis o
f the transpar
ency notif
ications r
eceived by t
he Company a
s of the date o
f this
two main shareho
lders are CFI
P CLYD LLC (who holds 28.
77% of the
s
hares and 26.
04 % of the voting
rights) and TOLEFI SA (who
s
% of the vot
ing rights).
As a
consequence,
the two main sh
areholders of
the Company
hold together
44.
43
% of
the voting ri
ghts attac
hed
to the Shares of
the Company.
The Company is
not aware of
shareholder
s of the Com
pany that
have entered
into a voti
ng agreement
or
have otherwis
e agreed to act
in concert.
Nevertheles
s, they coul
d, alone or toget
her, have
the ability to el
ect
or dismiss dir
ectors
(in additi
on to the nom
ination ri
ght grant
ed by the Co
mpany to CFI
P CLYD LLC)
, and,
depending on
how widely the
Company’s sh
ares are hel
d and represe
nted at shareh
olders’ m
eeting, tak
e
certain shar
eholders’ d
ecisions t
hat requir
e at least 50%,
two thirds,
75% or 80%
of the vote
s of the
shareholders t
hat are pres
ent or repr
esented at g
eneral share
holders’ m
eetings wher
e such items
are
submitted to v
oting by th
e shareholders
. Alternat
ively, to t
he extent that
these shar
eholders have i
nsuffici
ent
votes to impos
e certain shareh
olders’ de
cisions, they
could still hav
e the ability
to block propo
sed
shareholders’
resolutions
that requir
e at least 50%, t
wo thirds, 75% or
80% of the votes of
the sharehold
ers
that are present
or represent
ed at general shar
eholders’ m
eetings wher
e such deci
sions are s
ubmitted t
o
voting by the s
hareholders
. Any such vot
ing by the s
hareholder
s may not be in acc
ordance wit
h the inter
ests
of the Compan
y or the other share
holders of
the Company.
Sustainabi
lity of a liqu
id public market
The Company c
annot guarantee t
he extent
to which a liquid mar
ket for the
hares will
be
sustained. I
n the absence of such liq
uid market f
or the
s
hares, the price of
the
s
hares could be im
pacte
d
negatively. T
he liquidity of
the market f
or the
s
hares could be af
fected by var
ious causes, inc
luding th
e
factors identif
ied in the next r
isk factor (below) or
by a reduced interest of inv
estors in biot
echnology sect
or.
If securities
or indust
ry analysts do
not publ
ish research or p
ublish
inaccurate rese
arch or
unfavorabl
e research
b
usiness, the pr
ice of the
The trading mar
ket for the
depe
nds in part on t
he research and r
eports that sec
urities or indus
try
analysts pub
lish about t
he Company or its b
usiness. A
t the date of this
report the Com
pany is foll
owed by

nine analysts
(Bryan Garni
er, KBC Securit
ies, Kempen,
Kepler Cheuvreux
, H.C. W
ainwright, J
ones Trading
,
Portzamparc,
Wells Farg
o and William
Blair).
If no or few securities
or indust
ry analysts c
over the Com
pany,
the trading pr
ice would be n
egatively
impacted. I
f one or more of t
he analysts
who covers t
he Company
downgrades th
e
or publishes
incorrect
or unfavorable res
earch about it
s business, t
he price of the
share
would likely
decline. I
f one or more
of these anal
ysts eases c
overage of
the Company
or fails t
o
publish report
s on the Comp
any regularly,
or downgrade
s the
, dema
nd for the
decrease, whic
h could cause t
he price of the
or trad
ing volume t
o decline.
The Company has n
o present intent
ion to pay dividen
ds on its ordinary shar
es in the foreseeab
le
The Company has
no present
intention to pa
y dividends
in the foreseea
ble future.
Any recommendat
ion by
its Board of Di
rectors t
o pay divide
nds will de
pend on many f
actors, inclu
ding its
financial c
ondition (incl
uding
losses carried
-
forward), res
ults of operat
ions, legal r
equirem
ents and oth
er
f
actors. Fur
thermore, pursu
ant
to Belgian law,
the calculation of
amounts availa
ble for dist
ribution to shar
eholders, as
dividends or
otherwise, m
ust be determi
ned on the basi
s of its non
-
cons
olidated
statutory acc
ounts prepar
ed in
accordance wit
h Belgian
accounti
ng rules. In addit
ion, in accorda
nce with Belgian la
w and its Art
icles of
Association,
the Compa
ny must all
ocate eac
h year an am
ount of at le
ast 5% of it
s annual net
profit un
der
its non
-
consoli
dated statutory
accounts to a legal r
eserve until t
he
reserve
equals 10% of its
share capital
.
Therefore, th
e Company is
unlikely t
o pay divi
dends or oth
er distribut
ions in the
foresee
able future. I
f the
price of the s
hares decl
ines before
the Company
pays divid
ends, inv
estors will i
ncur a los
s on their
inve
stment,
without the like
lihood that t
his loss will be off
set in part or at all by pot
ential futur
e cash dividends
.
Internal audi
t activit
ies are perf
ormed by the dep
artments o
f Finance, for
all matters r
elated to acc
ountin
g
and financial
informat
ion, and Qual
ity Assu
rance for all m
atters relat
ed to the oper
ational ac
tivities of
the
As of the date of t
his report, t
here is not yet a ded
icated int
ernal audit
function.
In order to proper
ly manage i
dentified ris
ks, the Company
has set up the f
ollowing audit
measures
:
•
Access and security systems at the premises and o
ff
ices;
•
Establishment
, under the su
pervisio
n of the quality as
surance dep
artment, of
a set of procedures
covering all ac
tivities of t
he company;
•
Weekly modif
ications and u
pdates of t
he existing proc
edures;
•
Development o
f electronic a
pproval sys
tem in the exis
ting
ERP
system;
•
Implementat
ion of extra c
ontrols in the exi
sting
ERP
•
Development o
f a monthly fi
nancial rep
orting tool wh
ich allow a clos
e monitori
ng of the fi
nan
cial
•
Updated risks and cont
rols matr
ix
are
in place f
or the internal contr
ols processes (
entity level,
it,
2.8.13.
Controls,
supervisio
n and correctiv
es action
s
Controls are pe
rformed by all pers
ons in charge of
departments and s
ervices. When dev
iations are identif
ied,
there are repo
rted to, depen
ding of
relat
ive importa
nce, the head
of department
or the
Executive
The
Executive Committee
supervise
s the implementation of int
ernal audit and r
isk management
, taking int
o
considerati
on the recomm
endations o
n
the Audit Comm
ittee.

The
is
also in charg
e of proposi
ng the Audit C
ommittee cor
rective act
ions when
On May 5,
the shareh
olders meetin
g approved t
he appointme
nt of
Réviseurs
d
’Entrepris
es
, having it
s register
ed office at D
e Kleetlaan
2, B
–
1831 Diegem
, Belgium, du
ly
represente
d by Carlo
-
Sébast
ien d’A
ario, as St
atutory Auditor
, for a term of 3 y
ears, i.e. until
the ordin
ary
general meetin
g approving t
he accounts clos
ed on 31 December 20
22
mis
sion includes t
he auditin
g
of the statut
ory annual accoun
ts, the cons
olidated an
nual accounts
of the Company
and it
s subsidiari
es.
The Company is
also subject t
o ad hoc audit perf
ormed by the c
ompetent aut
horities t
o ensure compli
ance

3.
GROUP ST
RUCTURE, SHARE
HOLDING AND SHA
RE CAPITAL
The Company c
onducts its m
ain business t
hrough Cely
ad Oncology
SA.
In 2011, the C
ompany incor
porated Card
io3 Inc,
a fully ow
ned subsidiar
y, in the U.
S. for the pur
poses of
supporting its
clinical and reg
ulatory activ
ities of
the Group in the US.
Cardio3 Inc beca
me Celyad Inc o
n
May
12
,
2015. The growth of the ac
tivities of
Celyad Inc.
is associat
ed to the dev
elopment
of the US clinic
al
and regulatory
activities
of the Compa
ny in the US.
On November
5,
2014, t
he Company acquir
ed CorQuest Medic
al, Inc., a privat
e U.S. company, for
a single
cash payment
of €1.5 millio
n and on
-
going e
arn
-
out royalt
y payments
based on sales mil
estones.
CorQuest
Medical, Inc
. is developing H
eart
-X
S, a new ac
cess route to the l
eft atrium. T
he development of
Heart
-XS
and the activit
ies of CorQu
est Medical,
Inc. have
been on hol
d following t
he decisi
on of the Com
pany to
abandon the d
evelopment
of its cardio bus
iness progr
am (C Cure).
Medical Inc.
has sold to Corq
uest MedTech S
RL, a company
establis
hed under Belgi
an laws, it
s portfolio of
patents and rel
ated rights for
a consideratio
n of
€
1 and the reimb
ursement of c
ertain maintenanc
e costs of
these
patents.
CorQuest Medic
al Inc. has also t
he right to receive r
oyalties on the f
uture sales and a
percentage on
the capital ga
ins in case of r
e
-
sale or ch
ange of cont
rol of Corquest
MedTech SRL.
On
January
2015, t
he Company purc
hased OnCyte,
LLC, or OnCyt
e, a wholly
owned subsid
iary of
Celdara Med
ical, LLC,
a privately
-
held U.S. b
iotechnology
company for
an upfront
payment of $1
0.0 milli
on,
of which, $6.0
million
was paid in c
ash and $4.0 m
illion was
paid in the f
orm of 93,0
87 of its ordi
nary share
s.
As a result of this transa
ction the Com
pany acquir
ed its CAR
technology,
including tec
hnology lic
ensed from
the Trustees of
Dartmouth Colleg
e. OnCyte, LLC w
as the
company holdi
ng the CAR
-T
Cell portf
olio of clinical
-
stage
immuno
-
oncology
assets. I
n March 2018, the
Company has
dissolved On
Cyte, and al
l the assets an
d liabiliti
es of OnCyt
e, have been f
ully distribut
ed to
and assumed by t
he Company
On
May 1
2016, the Compa
ny acquired Biological Manufacturing Services SA (BMS). BMS owns GMP
labora
tories
. BMS rent it
s laborator
ies to the C
ompany sinc
e 2009 and unt
il April
30, 2016. U
ntil th
e
acquisitio
n, BMS was consi
dered as a relat
ed party to t
he Company.
On June 8, 2020, the Compa
ny announced t
he launch of its c
orporate rebran
ding, inclu
ding changing i
ts
name to Celyad Oncology
. The new name hig
hlights the Comp
any’s signific
ant progres
s with its next
-
generation CA
R T programs and em
phasizes
its commitm
ent to cancer pat
ients.
The Company’s ordinary shares are listed on NYSE Euronext Brussels and NYSE Euronext Paris regulated
markets and t
he Company
’s America
n Depositar
y Shares (
ADSs) are lis
ted on the Nas
daq Global M
arket,
all under the t
icker symbol CY
AD.
The Company does
not exerci
se any activiti
es through a
branch office.

The consolidat
ion
t
he Company
is
as follows:
Incorporation
ordinary
shares
ordinary
(%)
controlling
Celyad Oncology
Biopharma
Biological Manufacturing Services SA
3.2
Capital increase and issuance of shares
On January 1,
, the share capit
al of the Company am
ounted to €48,512,6
14,57 and was
represente
d
The followin
g transactions
took place si
nce January
1, 2021:
•
On January 8,
2021, the C
ompany has e
ntered int
o a committ
ed equity purc
hase agreem
ent
(“P
urchase Agr
eement”) for
up to $40
.0
million w
ith Lincoln P
ark Capital
Fund, LLC (“
LPC”),
a
Chicago
-
bas
ed institut
ional investor
. Over the 24
-
mont
h term of the Purchas
e Agreement
, the
Company will have t
he right to direct LP
C to purchase up to an aggreg
ate amount
of
$
American Dep
ositary Shares
(“ADSs”
), each of which r
epresents on
e ordinary sh
are of the
Company. Fr
om January 8, 2021 unti
l December 31, 202
1, a total of 1,962,
812 new shares hav
e
been issued by the Com
pany and subscrib
ed by LPC for
a cash proceed of €9.2 milli
on. As of
December 31, 202
1, there is a remain
ing access
to the equity purch
ase agreement es
tablishe
d
with LPC for an am
ount of $28.
0 million.
•
During the extr
aordinary shar
eholders meeti
ng of May, 25 2021, t
he shareholders, i
n
with Belgian C
ompany Law,
approved the
absorption of
approximat
ely €43.3 m
illion of acc
ounting
losses into sha
re premium.
As a result, shar
e premium has
been reduc
ed by a cumulat
ive amoun
t
of
€43.3 million in the 12 mont
hs period end
ed December
31, 2021 (€234.6 mill
ion of loss
absorption has
been approve
d and recorded f
rom inception to Dec
ember 31, 2021)
against capit
al
reduction reser
ve. This t
ransaction has no im
pact on the total equit
y, comprehe
nsive inco
me (loss),
assets (incl
uding cash) nor
•
On May, 21 2021 and Ju
ne 14, 2021,
a total of 188,800
new shares h
ave been issu
ed by the
Company and
subscribed by
Jefferies under
the ATM f
or a cash proceed of
€0.9 million.
•
On December
8, 2021, 6,50
0,000 new shar
es were iss
ued by dec
ision of t
he board of dir
ectors and
subscribed for
by CFIP CLYD
LLC in the fr
amework of a
private place
ment for a glo
bal cash
proceed of €28
.9 million (
$
32.5 million).
As of December
31, 2021, the shar
e capital of
the Company am
ounted to €78,
584,224,3
3 and was
represente
d by 22,593,956 s
hares.
All shares are iss
ued and fully paid up and ar
e of the same class. Eac
h share (i) entitles
its holder to one
vote at the Shareho
lders’ Meet
ings
(except for
what is said below re
garding shares w
ith double vot
ing rights)
;
(i
i) represent
s an identic
al fraction of
the capit
al and has t
he same right
s and oblig
ations
and participa
tes
equally in the
profit of Celya
d; and (iii) g
ives its
holder a prefer
ential subs
cription r
ight to subscr
ibe to new
shares, conver
tible bo
nds or warrants
in proporti
on to the part
of the share c
apital repres
ented by the sh
ares

The preferent
ial subscri
ption right
can be restric
ted or cancelled by
a resolution appr
oved by the
Shareholders
’ Meeting, or
by the Board of Direc
tors subject t
o an
authorizat
ion of the Share
holders’ Meet
ing,
in accordance
with the prov
isions of the
and the Com
pany’s artic
les of assoc
iation.
Further to the I
nitial Public O
ffering (IPO
) made on the Nasdaq on
2015, some shar
es of th
e
Company are repr
esented in t
he form of Ameri
can Deposit
ary Shares (A
DS). As of
The Company has
created va
rious incentiv
e plans under w
hich warrant
s were grant
ed to its employ
ees,
consultants or
directors (
all warrants ar
e together r
eferred to as
“Warrants”)
. This secti
on provides
an
overview of t
he outstanding
arrants
as of
De
cember 31, 202
Upon proposa
l of the Board of
Directors, t
he extraordi
nary shareh
olders’ meet
ing approved
the issuance o
f,
in the aggregat
e, warrants gi
ving rig
ht to subscr
ibe to shares
as follows:
•
On September 26,
2008, warrants
giving right
to 90,000 shar
es. Of these 90,000 W
arrants,
50,000
were accepte
d by the benefici
aries. None ar
e outstandin
g as of Decembe
r 31, 2021;
•
On May 5, 2010, warrants
giving right t
o 50,000 shares. O
f these 50,000 warra
nts (15,000 A
warrants, 5,0
00 B warrant
s and 30,00
0 C
, 12,710 A w
arrants, 5,
000 B warra
nts, and
21,700 C warrant
s C were accepted by
the beneficiar
ies. None ar
e outstanding as
of December
•
On October 29, 2010,
warrants giv
ing right to 79,50
0 shares. O
ut of the 79,500 warrant
s offered,
61,050 Warran
ts were accepted by
the
and none are out
standing as of Dec
ember
•
On January 31, 2013,
warrants giv
ing right to 140,00
0 shares. Out of the 140,
000 warrants,
120,000
were granted to cer
tain members
of the Executive Comm
ittee and a pool
of 20,000 warrant
s was
created. The w
arrants attr
ibuted to cert
ain members of t
he Executive Com
mittee were full
y vested
at December 3
1, 2013 and we
re all exercis
ed in January 2
014 and ther
efore conver
ted into or
dinary
shares. The re
maining 20,00
0 warrants wer
e not grant
ed and therefor
e lapsed;
•
On May 6, 2013, 11 inv
estor war
rants are at
tached to each
Class B Share
subscribed i
n the capital
increase in
which was decided on t
he same date, wit
h each invest
or warrant giv
ing right t
o
subscribe to o
ne ordinary sh
are
as a result, t
hese warrants give r
ight to a maximum
2,433,618
ordinary share
s. On May 31, 2013, war
rants giving rig
ht to 2,409,176 or
dinary shar
es were issue
d
and accepted,
which have all
been exercis
ed as of Decemb
er 31, 2021;
•
On May 6, 2013, warrants
giving right
to 266,241 ordinar
y shares. Out
of the 266,241 warrant
s
offered, 253,
150 Warrants
were accept
ed by the benefi
ciarie
s and 2,500 wa
rrants are out
standing
•
On June 11, 2013, ov
erallotment
warrant givi
ng right to a m
aximum number of
shares equal t
o 15%
of the new sha
res issued in th
e context of t
he U.S. initial
public offeri
ng,
207,225 sh
ares). T
he
overallotme
nt warrant was
exercise
d on July 17, 2013;
•
On May 5, 2014, warrant
s giving right t
o 100,000 sh
ares; a plan of 100,000
warrants was a
pproved.
Warrants were
offered to Co
mpany’s ne
wcomers (emp
loyees, no
n
-
employees and dir
ectors) in
several tranc
hes. Out of
the warrants
offered,
94,400 warr
ants were ac
cepted by t
he benefi
ciaries
and 35,698 war
rants are outst
anding as of
December 31, 2
021;
•
On November
5, 2015, warra
nts giving ri
ght to 466,0
00 shares
; a plan of
466,000 warr
ants was
approved. War
rants were of
fered to Com
pany’s newc
omers (emp
loyees,
non
-
employees a
nd
directors) in se
veral tranch
es. Out of
the warr
ants offered, 353,
550 warrant
s were accepted by
the
beneficiari
es and 79,315 w
arrants are out
standing as of
December 3
1, 2021;

•
On December
8, 2016, warra
nts giving ri
ght to 100,0
00 shares
; a plan of
100,000 warr
ants was
approved. War
rants were of
fered to Com
pany’s newc
omers (em
ployees
, non
-
employees
and
directors) i
n two tranch
es. Out of the w
arrants off
ered, 45,000
warrants
were accepte
d by the
beneficiari
es and 7,500 warr
ants are out
standing as of
December 3
1, 2021;
•
On June 29, 2017,
warrants giv
ing right
to 520,000 sha
res; a plan of
520,000 war
rants was
approved. War
rants were off
ered to empl
oyees, non
-
empl
oyees and direct
ors in severa
l tranches.
Out of the warrants
offered, 334,4
00 warrant
s were accepted by
the benefici
aries and 282,25
1
warrants
ar
e outstandi
ng as of December 3
1, 2021;
•
On October 26,
2018, warra
nts givin
g rights to
700,000 share
s; 700,00
0
warrant
s have been
issued
in the framewo
rk of the autho
rized capital
. 426,050 warr
ants were ac
cepted by t
he benef
iciaries,
out of which 36
5,817
warra
nts are still out
standing as of
December 3
1, 2021;
•
On October 25,
2019, warra
nts givin
g rights to
939,500 share
s; 939,500 w
arrants hav
e been issue
d
in the framewo
rk of the autho
rized capital
. 602,025 warr
ants were ac
cepted by t
he benef
iciaries,
out of which 54
9,842 warrant
s are still outs
tanding as of D
ecember 31,
2021;
•
On December
11, 2020, warr
ants giving ri
ghts to 561,
525 shares;
561,525 warr
ants have be
en
issued in the fram
ework of the author
ized capital.
555,300 warrant
s were accepted by t
he
bene
ficiari
es, out of whic
h 532,133 warr
ants are still o
utstandin
g as of December
31, 2021.
•
On October 11,
2021, warra
nts givin
g rights to
777,050 share
s; 777,050 w
arrants hav
e been issue
d
in the framewo
rk of the autho
rized capital
. 281,500 warr
ants wer
e accepted by t
he benef
iciaries,
out of which 28
1,500 warrant
s are still outs
tanding as of D
ecember 31,
2021.
As a result, as of Decem
ber 31, 2021 ther
e are 2,136,556 war
rants outstan
ding which repr
esent respec
tively
8.64% of the total numb
er of all its iss
ued and outstandin
g shares and 7.88%
of the total voting f
inancial
instrument
s. For further inf
ormation
and ov
erview of the f
eatures of the
various warra
nt plans, refer
to
In accordance
with the
CCA
,
the Company may
increase or
decrease it
s capital by
decision of
the
Extraordinar
y General S
hareholders
’ Meeting t
aken with
a majority of
75% of the v
otes cast,
at a meeting
where at least 50% of
the share capit
al of the Company is
present or repr
esented. If
the attendance quor
um
of 50% is not met,
a new Extraordinar
y General Share
holders’ Meeti
ng must be conv
ened at which t
he
shareholders
may decide on
the agenda items,
irrespecti
ve of the percentag
e of share capital pres
ent or
represente
d at such meeting. T
here are in this r
espect no conditions
imposed by the Company
’s articles of
association th
at are mor
e stringent t
han those requ
ired by law.
Within the fra
mework of t
he powers gra
nted to it un
der the author
ized capita
l, the Boa
rd of Direct
ors may
also increas
e the Company’
s capital as spec
ified in its
articles of
association.
The informat
ion in the tabl
e below is b
ased on inf
ormation
known to the
Company or a
scertained by
the
Company from
public filin
gs made by the shar
eholders as
of the date of thi
s Annual Rep
ort.
On May 23, 20
19 the Shareh
olders’ Me
eting deci
ded to vol
untarily “
opt in” and s
ubmit the Com
pany to t
he
new Belgian Code of
Companies a
nd Associat
ions. Furt
hermore, the Share
holders’ M
eeting decide
d to
activate the po
ssibility of
fered by Art
icle 7:53 of the code of compa
nies and assoc
iations and approv
ed the
grant of doubl
e voting right
to the register
ed shares held by a
shareholder
in a registere
d form for mor
e than

As from May 3, 202
1, Tolefi S
A, a major sha
reholder of
the Company,
entitled t
o a double voti
ng
right for its 2,
295,701 shar
es.
NAME OF BENEFICIAL OWNER
SHARES BENEFICI
ALLY OWNED
Director
s and Members of
the Executive Co
mmittee
Directors and Members of the Exec
u
tive Committee as a group
[1]
Of which 145,150 are ordinary s
hares and 11,400 are ADSs.
On the basis o
f the transpar
ency notif
ications r
eceived by t
he Company a
s of the date o
f this Repor
t, the
two main shareho
lders are CFI
P CLYD LLC (who holds 28.
77% of the shares and 26.
04 % of the voting
rights) and T
OLEFI SA (who hol
ds 10.16% of t
he shares and 1
8.
% of the v
oting rights
). As a
consequence,
the two main sh
areholders of
the Company
hold together
44.
43
% of
the voting ri
ghts attac
hed
to the shares of
the Company.
3.6
Anti
-
takeover provisions under Belgian la
ws
Under Belgia
n law, public t
akeover bids
for all the
outstandin
g voting sec
urities iss
ued by the issu
er are
subject to t
he supervision of the F
SMA. If the latter
determines t
hat a takeover viol
ates Belgian la
w, it may
lead to suspens
ion of the exercis
e of the right
s attached to any shares
that were acquir
ed in connect
ion with
the envisaged
takeover. Purs
uant to th
e Belgian law of
200
7 on public
takeovers
, a mandator
y
takeover bid mus
t be made when, as a resul
t of its own acquisiti
on or the acquis
ition by perso
ns acting in
concert with it,
a person owns
, directly or ind
irectly, m
ore than 30% of the securi
ties with vot
ing rights in
a
company with
registered of
fice in Belgi
um whose secur
ities are adm
itted to t
rading on a regu
lated or
recognized mark
et. The acquir
er must offer
to all other shar
eholders the oppor
tunity to s
ell their shares
at
the highest of
(i) the high
est price offer
ed by the acq
uirer for s
hares of the is
suer durin
g the 12 mont
hs
preceding the
announceme
nt of the bid or
(ii) the w
eighted av
erage price
of the shares
on the most
liqui
d
market of the last 30 calen
dar days prior
to the date on which the obl
igation of t
he acquirer to offer th
e
takeover of the
shares of othe
r shareholder
s starts.
As
required by the
ar
ticle 34 of the Royal Decree of
14 November 2007, t
he following element
s
must be
disclosed whic
h may have an
impact in the ev
ent of a takeov
er bid:
a)
Celyad’s capital st
ructure, with
an indicati
on of the differ
ent classes of
shares and, for eac
h class
of shares, th
e rights and
obligati
ons attache
d to it and the
percenta
ge of total shar
e capit
al that it
As from the date of t
his Report, the s
hare capital of the Company
amounts to 49
33 EUR,
represente
d by
s
hares of no
-
par
value, fully pai
d up.
There are no dif
ferent class
es of Celyad s
hares.
b)
Restrictions, ei
ther legal or pr
escribed by the
articles of as
sociation,
on the transf
er of securities
The articles of ass
ociation of the C
ompany do not contai
n any restri
ction on the trans
fer of the
shares.
c)
Holders of any securiti
es with speci
al control right
s and a descr
iption of those r
ights
There are no such holder
s except speci
fic sharehol
ders with a double vot
ing rights
as described

d)
System of control of any empl
oyee share sch
eme where the cont
rol rights ar
e not exercised
directly
e)
Restrictions, either
legal or pre
scribed by the
articles of as
sociatio
n, on the exerc
ise of voti
ng rights
There are no such r
estrictio
ns
.
f)
Agreem
ents between sh
areholders
which are know
n to
and may
result in res
trictions on t
he
transfer of sec
urities and/or
the exercise of
voting right
s
The Company has
no knowledge of
agreements
which may r
esult in restric
tions on the tr
ansfer of
its
securities a
nd/or the ex
ercise of vot
ing rights
.
g)
Rules governing the ap
pointment and r
eplacem
ent of direct
ors
:
The Chair
of the Board is
in charge of t
he nomination pr
ocedure. T
he Board is respo
nsibl
e
for proposing m
embers for nom
ination to th
e shareholders
’ meeting, in e
ach case based on the
recommendati
on of the Nominat
ion & Remuner
ation Commit
tee.
For any new appoint
ment
to the Boar
d, the skills,
knowledge and ex
perience alre
ady present an
d
those needed on the B
oard will be evalu
ated and, in the l
ight of that ev
aluation, a descr
iption of t
he
role and skills
, experienc
e and knowledge n
eeded will b
e prepared (a “
profile”).
When dealing
with a new ap
pointment,
the Chair
of the Boar
d must ensur
e that, befor
e
considering t
he candidat
e, the Boar
d has receive
d sufficie
nt informati
on such as the c
andidate’
s
curriculum vi
tae, an ass
essment of t
he candi
date based o
n the candi
date’s initi
al intervie
w, a list of
the positions t
he candidat
e currently h
olds, and, if
applicabl
e, the necessar
y informa
tion for
assessing the
candidate’s
independ
ence.
If a legal entity
is appoint
ed as a director,
it is oblige
d to appoint,
in accorda
nce with t
he provisio
ns
of the
CCA
, a natural
person as a permane
nt representat
ive, who may r
epresent the leg
al entity in
all its dealing
s with the Co
mpany. The lega
l entity dir
ector may not
dismiss its p
ermanent
representativ
e without s
imultaneous
ly appoint
ing a new repres
entative.
Any proposal for t
he appointment
of a director by the s
hareholders’ m
eeting shoul
d include a
recommendati
on from the Board bas
ed on the advice of the Nomi
nation & Remuner
ation
Committee. T
his provision als
o applies to shar
eholders
’ proposals f
or appointment
. The proposa
l
must specify t
he proposed t
erm of the mandate,
which must
not exceed four
years. It
must be
accompanied b
y relevant inf
ormation o
n the candidat
e’s profess
ional qualif
ications t
ogether wit
h a
list of the positi
ons the candidat
e already holds.
The Board will in
dicate wheth
er the candidat
e
satisfies the in
dependenc
e criteria.
Until
such t
ime as the For
tress Sharehold
ers own in the aggregat
e less than 10% of
the then
outstandin
g shares (includi
ng shares under
lying Amer
ican Depos
itary Shares)
for a period of m
ore
than thirty (30)
consecuti
ve days:
(i)
F
ortress shall h
ave the right t
o select two (2)
individual
s (the “
”) to be,
at Fortress
’s option, (a) mem
bers of the Boa
rd, (b) non
-
voti
ng observers
of the Bo
ard or (c)
a combination
thereof (provi
ded that if For
tress select
s both Fort
ress Designees t
o be
members of the Boar
d, Fortress
may also select a thi
rd Fortress Des
ignee to be a non
-
voting observ
er of the Boar
d), and
(ii)
the Board, at Fortres
s’s option,
(a) shall recommend t
he confirmat
ion or (re)appoi
ntment of
any two (2) Fort
ress Designee
s as members of t
he Board at any applic
able gener
al meetin
g
of shareholder
s of the Compa
ny, (b) shall ap
point any two (
2) Fortress
Designees as n
on
-

voting observ
ers of the B
oard or (c) shal
l proceed to a com
bination th
ereof, and
(iii)
Upon the termi
nation of the
board mand
ate of any Fort
ress Desig
nee (for what
ever cause)
,
at the option of F
ortress, (
a) the Company shall as s
oon as practi
cably possibl
e co
-
opt to
the Board a replacem
ent Fortress
Designee, and shal
l use best effor
ts to cause the
confirmati
on of the co
-
opt
ation at t
he next gener
al meeting of
sharehol
ders of t
he Company;
or (b) the Com
pany shall as
soon as pract
icably poss
ible approve t
he appoint
ment of
a
replacement
Fortress Desi
gnee as a non
-
vo
ting observer
of the Board of
Directors, an
d
(iv)
the Company shall not
, directly
or indirectly,
without t
he consent of rec
ommend, dir
ectly or
indirectly,
or take any
action to (a) i
ncrease the s
ize of the
Board or (b) co
-
opt or
the Board, in plac
e of the Fort
ress Designees,
any indiv
idual other t
han a Fortres
s
Outgoing direc
tors will remai
n in office for as long as t
he shareholder
s’ meeting,
for whatever
reason, has no
t filled the vac
ancy.
Appointment
s are generall
y made for a ma
ximum term of f
our years. Outgoi
ng director
s will be
eligible for re
-
e
lection. How
ever, whe
n an indepen
dent direct
or has serve
d on the Boar
d for
more
than 12 years, he is
in not eligi
ble for a fourth t
erm
independent direct
or of the
Company. Bef
ore
proposing any dir
ector for re
-
elect
ion, the Board s
hould take int
o account the eval
uations made by
the Nominatio
n & Remunerat
ion Committe
e. The mandates
of those direct
ors who are not r
e
-
appointed for a
new term will term
inate imme
diately aft
er the sharehold
ers’ meetin
g which decide
s
on any re
-
appo
intment or app
ointment.
The directors
may be revoked by t
he shareholder
s’ meeting at
any time.
If at any t
ime a vacancy is
created on the
B
oard of
D
irectors
, the remaining dir
ectors may
temporaril
y appoint a dir
ector to th
e
board to fill t
he vacancy. Any
director so app
ointed will
hold offic
e for the remainder of
the term of
appointment
of the director t
hat it replaces.
T
he definitive app
ointment of t
he replacing direct
or is
added to the agen
da of the follow
ing shareh
olders’ meet
ing.
h)
Rules governing the am
endment of
the articles
of association
Pursuant to t
he
CCA
, any am
endment t
o the articles
of associ
ation such as
an increase
or decreas
e
in the capital of t
he Company, and cert
ain other matters
such as the approval of t
he dissolution,
merger or de
merger may on
ly be authoriz
ed with the appr
oval of at leas
t 75% of the votes
validly
cast at an Extraord
inary Gener
al Shareholder
s’ Meeting where at
least 50% of t
he Company’s
share capit
al is present
or repres
ented. If
the attendanc
e quorum of 5
0% is not met
, a new
Extraordinar
y General S
hareholders
’ Meeting m
ust be conven
ed at which t
he shareholder
s may
decide on the
agenda item
s, irrespect
ive of the per
centage o
f share capit
al prese
nt or represent
ed
i)
Powers of the Board of
Directors
in particula
r to issue or bu
y back shares
The Board of Director
s has the most
extensive powers in or
der to perfor
m all acts which are usef
ul
or necessary s
o as to complete t
he Company’s
corporate
The Board of Dir
ectors has t
he power to pe
rform all acts
which are not
expressly ass
igned by la
w
or by the articl
es of associati
on to the share
holders’ me
eting.
However, until
such time as t
he Fortress
Shareholders
own in the aggr
egate less than 1
0% of t
he
then outstandi
ng shares (incl
uding shares
underlyin
g American De
positary
Shares) for a peri
od of
more than thirt
y (30) co
nsecutive days,
the Company s
hall not, dir
ectly or
indirectly,
without th
e
consent of F
ortress,
(a
) incur or
issue any indebt
edness that woul
d encumber any i
ntellectua
l
property of t
he Company, (
b
) issue any Equity Securities
(defined as an
y share and a
ny other
security, f
inancial instrum
ent, certi
ficate or other r
ight (inclu
ding options,
futures, swaps
and other
derivatives) re
presenting, b
eing exercisa
ble, convert
ible or ex
changeable i
nto or for, or ot
herwise
providing a righ
t to acquire, dir
ectly or indirect
ly, any of t
he securities menti
oned above or a
ny other
security or fina
ncial instr
ument the value of
which is based on any of
the foregoing)
of the Company

that are senior t
o the
o
hares wit
h respect to the r
ight to receive (
x) dividends o
r other
distributions
to shareholder
s or (y) proceeds i
n the event of the liq
uidation,
dissolution or
winding
-
up of the Company (i
ncluding f
or such purpos
es in connecti
on with any cha
nge of control
transaction)
, (iii) alt
er, amend or c
hange the r
ights, pref
erence or pr
ivileges
of the
s
har
es, inclu
ding
in connection
with any recl
assificat
ion, reca
pitalizatio
n, reorgani
zation or res
tru
cturing, (iv) make
any proposal t
o amend, repeal or
otherwis
e modify any pr
ovision of t
he Company’s ar
ticles of
association tha
t would be reasona
bly expecte
d to adversely af
fect the interes
ts of Fortress
or any
Fortress Shar
eholder or (v) make any pr
oposal
to modify the right
s of any Equity Securit
ies of the
Company in a mann
er adverse t
o any
Fortress
The Board of Directors has
to power to establis
h an audit commit
tee and other
powers of whic
h it will determ
ine.
On June
8
, 20
an ext
raordinary
sharehol
ders meeting o
f the Company grant
ed to the Board
of
Directors the
power to incr
ease the shar
e capital in acc
ordance with t
he articl
es
et s
q. of the
CCA
, in one or severa
l times, for a m
aximum amount of
€
for a period of 5 years
as of the public
ation of the modif
ication to t
he articles of as
sociation of
the
C
ompany. Furt
hermore, in acc
ordance with ar
ticle
7:202
of
the
CCA
, the Board of Dir
ectors is
empowered to pr
oceed with a share c
apital inc
rease even af
ter receipt by
the Company of a
notification by
the FSMA of a takeov
er bid for the Compa
ny’s share, f
or a period of three years f
rom
When increas
ing the share c
apital wit
hin the limit
s of the author
ized capit
al, the Boar
d of Director
s
may, in the Co
mpany’s inter
est, r
estrict or c
ancel the shar
eholders’ pref
erential s
ubscript
ion rights
,
even if such re
striction or
cancellati
on is made f
or the bene
fit of one or mo
re specific
persons oth
er
than the emplo
yees of the Co
mpany or its s
ubsidiaries
. The Board of
Directors
is not allowed t
o
Regarding agr
eements on s
everance pay,
reference is m
ade to the Rem
uneration Rep
ort.
j)
Significant agreem
ents to which t
he Celyad is a par
ty and which take eff
ect, alter
or terminat
e upon
a change of control of
Celyad follow
ing a takeover bi
d, and the effect
s thereof, except w
here their
nature is such t
hat their dis
closure woul
d be seriousl
y prejudicia
l to Celyad
; this exceptio
n shall not
apply where C
elyad is specifi
cally oblige
d to disclose s
uch informati
on on the basis
of other lega
l
There are no such agr
eement
s.
k)
Agreements between Celyad
and its Board members
or employees prov
iding for com
pensation if
the Board member
s resign or ar
e made redunda
nt without vali
d reason or if
the employme
nt of the
employees cea
ses because of
a takeover bi
d
There are no such agr
eement
s.
Citibank N.A.
is acting as dep
ositary bank
for the ADS iss
ued by the Company
.

4.
CONSOLI
DATED FINA
NCIAL STAT
EMENTS
•
To
the best of our
knowledg
e, the consolid
ated financi
al statements as
of
prepared in ac
cordance with
the Internatio
nal Financial
Reporting St
andards
as issue
d by the
Internationa
l Accounting S
tandards Boar
d and
as ado
pted by the Europe
an Union, and the l
egal
requirement
s applicable in Be
lgium, give a t
rue and fair view of t
he
assets
, liabilities,
position
loss
, chang
es in equi
an
d cash flows
of the
Comp
any
undertakings
included in th
e consolidat
ion taken as a wh
ole
;
and t
hat
•
The
man
agement rep
ort includes
a fair review of t
he develo
pment and t
he performan
ce of the
business and t
he position of the
and the undertakings i
ncluded in t
he consolidat
ion taken
as a whole, tog
ether with a de
scription of
the principa
l risks and uncert
ainties t
hat they face.
March 24
, 20
22 o
n behalf of
the Board of Direc
tors,

4.2
Statutory auditor’s report to the general meeting of shar
eholders of Celyad
Oncology
SA for
the year ended December 31, 202
1
(consolidated financial
4.3
Consolidated financial statements as at December 31, 202
1
4.3.1.
Consolidated sta
tements of financial p
osition
Goodwill and Intangible assets
Property, Plant and Equipment
Non
-
current Trade and Other receivables
Non
-
current Grant receivables
Trade and Other Receivables
Current Grant receivables
Cash and cash equivalents
Recovera
ble Cash adva
nces (RCAs)
Contingent consideration payable and
other financial
liabilities
Recovera
ble Cash adva
nces (RCAs)
Other current
liabilities
TOTAL EQUITY AND LIABILIT
IES
(1)
For information on voluntary change in acc
ounting policy, see note 5.2.16.
The accompan
ying disclos
ure notes form
an integral part of
these cons
olidated fi
nancial s
tatements.

4.3.2.
Co
nsolidat
ed statements of
comprehensi
ve loss
Research and Development expenses
(
20 773)
(
21 522)
General & Administrative expenses
(
9 908)
(
9 315)
Change in fair value of contingent consideration
Operating Loss
6
-
Basic and diluted loss per share (in
€)
Other
compr
ehens
ive in
come/
(lo
ss)
Items that will not be reclassified t
o
profit and loss
Reme
asurem
ents of
post
-
employment benefit obligations, net of tax
554
(197)
Items that may be subsequently rec
lassi
fied to profit or l
o
ss
Currency translation differences
Other c
omprehens
ive income /
(loss) for
the period
, net of tax
Total c
omprehensiv
e loss for
the period
Total c
omprehensiv
e loss for
the period a
ttributable
to Equity
Holders
(1)
[1]
For 202
1
20
, the Group does not have any non
-
controll
ing interests and the losses for the year are fully
attributable to owners of the parent.
The accompan
ying disclos
ure notes form
an integral part of
these cons
olidated fi
nancial s
tatements
.
6
The
operating loss arises
from the Company’s l
oss for the period before deducti
on of financial incom
e, financial expenses
and income taxes. The purpose of this m
easure by Management is to identify the Company’s results
in connection with
its operating activities.

Other
reserves
7
reduction
Accumulated
²)
Total
Balance as of
January 1, 2020 (as
adjusted)
1
48 513
43 349 28 181 191 213 (
265 637)
45 619
Total transa
ctions with owners,
recognized dire
ctly in equity
Currency Translation differences
Remeasurements of defined benefit
Total comprehensi
ve loss for the
Balance as of De
cemb
er 31, 2020
(as adjusted)
1
48 513
43 349 30 958 191 213 (
283 039)
30 994
Balance as of January 1,
2021 (as
adjusted)
1
48 513
43 349 30 958 191 213 (
283 039)
30 994
Transacti
on costs assoc
iated with
Reduction of share premium by
Total transa
ctions with owners,
recognized dire
ctly in equity
30 072
(37 032)
2 172
43 349
38 561
Currency Translation
differences
Remeasurements of defined benefit
Total comprehensi
ve loss for the
Balance as of December 31, 2021
(1)
For information on voluntary change in acc
ounting policy, see note 5.2.16.
(2)
Pursuant to Belgian law (“CCA”)
, the calculation of amounts avai
lable for distribution to shareholders, as
dividends or
otherwise, must be determined o
n the basis of the Company’s s
tandalone non-cons
olidated statutory financial
statements of Celyad Oncology
SA prepared under Belgian GAAP,
and not on the basis of IFRS cons
olidated financial
statements. For more information, see note 5.13.
The accompan
ying disclos
ure notes form
an integral part of
these cons
olidated fi
nancial s
tatements.
7
Other reserves includes Share
-
base payment reserve, Othe
r equity reserve from conversion of converti
ble loan in 2013
and Currency Translation Difference.
4.3.4.
Co
nsolidat
ed statements of
Cash flows
For the year ended December
31,
Cash Flow from operat
ing activities
Intangibles
-
Amortization and impairment
Property, plant & equipment
-
Loss on disposal of Property, plant and
equipment
Gain on sales of Property, plant
& equipment
Provision
for onerou
s contract
Change in fair value of c
ontingent consideration payable and other financial liabilities
Remeasur
ement of Reco
verable Cash
Advances (
RCAs)
Grant income (RCAs and others)
(
4 178)
(
3 089)
Change in working capi
tal
Trade
receivables, other (non
-
)current receivables
Trade payables, other (non
Net cash used in operations
Acquisition of Property, Plant & Equipmen
t
Acquisitions of Intangible assets
Disposals of Property, Plant & Equipment
Proceeds from net investment in lease
Net cash from/(used in) investi
n
g activities
Cash Fl
ow fro
m finan
cing
activi
ties
Repayments of bank borrowings
Repayments of leases
(
1 099)
(
1 255)
Proceeds from issuance of shares a
nd exercise of warrants
Proceeds from RCAs & other grants
Repayment of RCAs & other gran
t
s
Net ca
sh from/
(used
in) fin
anci
ng acti
viti
es
Net cash and cash
equivalents at beginning of the period
Change in Cash and cash equivalent
s
Effects of exchange rate changes on
cash and cash equivalents
Net cash and cash equivalents at
the end of the
The accompan
ying disclos
ure notes form
an integral part of
these cons
olidated fi
nancial s
tatements.

5.
Notes to the consolidat
ed financial statements
Celyad Oncolo
gy SA and its
affiliates wi
ll be collec
tively r
eferred to as “
the Compa
ny”, “the G
roup”, “Celya
d”,
The Company
stage biop
harmaceut
ical compan
y focused on th
e discovery a
nd develo
pment of
chimeric anti
gen receptor
T
cell (CAR T) therapies for cancer.
Celyad
Oncolo
gy
S
A was incor
porated on J
uly 24, 2007 u
nder the nam
e “Cardio3 B
ioSciences
”. Celya
d is
a
limited liability company (
Société Ano
nyme) governe
d by Belgian law wit
h its regist
ered office at
Axis Parc,
Rue Edouard B
elin 2, B
-
1435 M
ont
-
G
uibert, Belgi
um (company n
umber 0891.1
18.115).
On June 8, 2020, the Compa
ny announced t
he launch of its c
orporate rebran
ding, inclu
ding changing i
ts
name to Celyad Oncology
. The new name hig
hlights the Comp
any’s signific
ant progres
s with its next
-
generation CA
R T programs and em
phasizes
its commitm
ent to cancer pat
ients.
The Company’s ordinary shares are listed on NYSE Euronext Brussels and NYSE Euronext Paris regulated
markets and the Company’s American Depositary Shares (
ADSs) are l
isted on the N
asdaq Globa
l Market,
all under the t
icker symbol CY
AD.
The Company
has three fu
lly owned s
ubsidiari
es (togeth
er, the Grou
p) located i
n Belgium
(Biologic
al
Manufacturing
Services SA)
and in the Unit
ed States (Cely
ad Inc. and C
orque
These consoli
dated financi
al statement
s have been appr
oved for issua
nce by the Company
’s Board of
Directors on M
arch 24, 20
2
2
. These st
atements
have been aud
ited by
SRL EY Bedrijfsrevisoren
-
d’Entreprises
, the statut
ory auditor
of the Company a
nd independ
ent register
ed public ac
counting firm
.
The
annual re
port is avai
lable to the
public fr
ee of charge t
o the above
-
m
entioned a
ddress or vi
a the
Company’s we
bsite (
htt
ps://celyad
.com/in
vestors/regu
lated
5.2
Basis of preparation and significant accounting policies
The consolidat
ed financi
al statement
s of
for the twelve m
onths ended
December 31, 2021
20
20
(the “year
” or “the period”
) include Ce
lyad
Oncolo
gy
SA
and its subsidi
aries. The sig
nificant acc
ountin
g
policies used f
or preparing t
hese consoli
dated fina
ncial sta
tements are ex
plained below.
The consolidat
ed financi
al statem
ents have been pr
epared on an his
torical c
ost basis, except
for:
•
–
Fair value thr
ough profit
or loss
•
Contingent c
onsideration a
nd other
•
Post-
employment
benefits lia
bility
The policies h
ave been cons
istently app
lied to all the ye
ars present
ed, unless ot
herwise s
tated.
The consolidat
ed
financial st
atements are
presented in eur
o and all values ar
e presented in t
housand
s
(€000) except whe
n otherwise indic
ated. Amounts
have been rounded o
ff to the nearest t
housand and in
certain cases
, this may result
in minor discr
epancies i
n the totals and su
b
‐
totals discl
osed in the fi
nancia
l

The consolid
ated financia
l statements of
the Group have bee
n prepared
in accordance
with Internatio
nal
Financial Rep
orting Stan
dards, Int
ernational A
ccounting Sta
ndards and I
nterpretati
ons (collectiv
ely, IFR
Ss)
as issued by the I
nternationa
l Accounting St
andards Boar
d (IASB)
and as endorsed by
the Europea
n Union.
The preparat
ion of the c
onsolidated f
inancial
statements
in accorda
nce with I
FRS requires
the use of
certain
critical acc
ounting est
imates. I
t also requires
management
to exercise i
ts judgment
in the process
of applyin
g
the Group’s acc
ounting polici
es. The areas i
nvolving a high
er degree of ju
dgment or compl
exity, are ar
eas
where assumpt
ions and estim
ates are signif
icant to the f
inancial statem
ents. T
hey are disclose
d in note 5.4
.
The Group is pur
suing a strategy
to develop t
herapies to treat
medical needs
in oncology. M
anagement ha
s
prepared detai
led budget
s and cash flow f
orecasts f
or the years 202
and 202
3
. These forecas
ts reflect t
he
strategy of t
he Group and include sig
nificant ex
penses and cash out
flows in relat
ion to the developm
ent of
selected res
earch progr
ams and pro
duct candi
dates, par
tly compensat
ed by gra
nts funding
and tax
As of December 31,
2021, the Comp
any had cash and cas
h equivalent
s of €30.0 mill
ion and
no short
investments.
On January 8, 2021, t
he Company
enter
ed into a commi
tted equity purch
ase agreemen
t
(“Purchase A
greement”
) over a 24
-
mont
h term for
up to $40
million wit
h Lincoln P
ark Capit
al Fund, LLC
(“LPC”)
, pursuant to which L
PC’s purchase
s are subject t
o certain condi
tions, inclu
ding that
the Company
may only deliv
er a Regular Pur
chase Notice
(as that term
is defined in the Pur
chase Agreem
ent) of
so long as the adjus
ted price of
Over the rem
aining lifet
ime of the Purc
hase
Agreement,
the Company
will have the right t
o direct LPC t
o purchase up t
o an aggregate
r
emaining amount
of $28
, each of whic
h represent
s one of our ordinary s
hares.
As of Decem
ber 31, 2021, t
he
remaining am
ount of $28.
0 million
of this equ
ity purch
ase agreem
ent is expec
ted to strengt
hen th
e
Company’s cur
rent stat
ement of financ
ial posit
ion while als
o providin
g the Company w
ith access t
o futur
e
capital on a
n as needed b
asis and to e
nsure suf
ficient fu
nding to cover it
s operati
ons for t
he next 12 mon
ths
from the date the f
inancial st
atements ar
e issued.
Based on its c
urrent scope o
f activit
ies, the Compa
ny estimat
es that its
cash and cash
equivalent
s as of
December 31, 202
1 combined wit
h the remaining acces
s to the equity purc
hase agreeme
nt established
with
Lincoln Park Capita
l Fund, LLC (rem
aining amount of
$28.0 million as of Decem
ber 31, 2021) shoul
d be
sufficient t
o fund operatin
g expenses
and capital ex
penditure r
equirement
s
On March 11, 202
0, the Worl
d Health Orga
nization dec
lared the nove
l strain of cor
onavirus (
COVID
-
19) a
global pandemi
c and recomme
nded containm
ent and mitigat
ion measures
worldwide. T
hroughout 2020 and
2021, Belgium
and the Unit
ed States,
where the Compa
ny
, w
ere impacted
by temporary
closures.
While progress
has been made in t
he fight agai
nst the ongoing C
OVID
-
19 pan
demic, in
cluding the br
oad
disseminati
on and adminis
tration of v
accines in cer
tain count
ries, the CO
VID
-
19 pan
demic has conti
nued to
spread global
ly. The length or
severity of
this pandemic ca
nnot be predic
ted, but the Com
pany antici
pates
that there may
continue to b
e additional im
pacts f
rom a prolonged CO
VID
-
19 env
ironmen
t on the planne
d
development a
ctivities of
the Company.
To date, COVID
-
19 has ha
d no impact on the Group’
s financial stat
ements and corpor
ate cash flow, and t
he
Group expects
that its exist
ing cash and cas
h equivalent
s combined with t
he remainin
g access t
o the equity
purchase agre
ement establi
shed with Linc
oln Park Capita
l Fund, LLC (re
maining am
ount of $28.0 milli
on as
of December 31,
2021) should be s
ufficient
, based on the curre
nt scope of activ
ities, to fund oper
ating
expenses and
capital expen
diture req
uirements unt
il mid
-
2023.
With regar
ds to
programs, no m
ajor disruptio
n in enrollment
were experien
ced in the CYAD
-
10
1, CYAD
-
211 or CYAD
programs in 20
21 due to t
he coronavir
us pandemic
. Enroll
ment in the r
espective t
rials for
CYAD
-
101 and
CYAD-
211 is ongoing w
ithout any m
ajor disrupt
ion due to t
he coronavirus

disruptions ma
y occur. However,
since 2020, cert
ain clinical sit
es and institut
ions have not been able t
o
receive visits from
the Company
represent
atives durin
g the coronavir
us pandemic,
which has dela
yed
its
data monito
ring activit
ies
its
abil
ity to lock the dat
abases for
completed s
tudies
.
The long
19
on the Co
mpany’s operat
ions wil
l depend on
future dev
elopments, w
hich
are highly uncert
ain and cannot be pred
icted, inc
luding t
he emergence of new vari
ants, such as Delt
a and
Omicron, and,
among other
things, additi
onal gover
nment rest
rictions int
ended to cont
ain COVID
-
effects, but
potential prol
onged closur
es or other bus
iness disr
uptions may
negatively aff
ect its oper
ati
and the operations
of its agents, c
ontractors, c
onsultants or colla
borators,
which could have a mater
ial
adverse impact
its business,
results of
operations an
d financi
al condition.
Changes to a
ccounting standar
ds and interpre
tations
The Group has
applied the sam
e accounting po
licies and met
hods of comput
ation in it
s 202
consolidated f
inancial st
atements as
compared t
o 20
20
, exc
ept for those that
relate to ne
w standards a
nd
None of the ne
w standards,
interpret
ations and am
endments
, which are ef
fective for p
eriods be
ginning af
ter
January 1, 202
1 which have b
een issued by t
he IASB and the I
FRIC have a mat
erial effect
on the Group’
s
financial stat
ements. None o
f the new standards
, interpret
ations and am
endments, whi
ch will be eff
ective
for periods beg
inning after Ja
nuary 1, 2022 and ar
e not yet ef
fective as of
December 31,
2021 and/or not
yet adopted by the Europe
an Union as of December
31
, 2021, ar
e expected t
o have a mat
erial effec
t on the
Group's futur
e financial s
tatements
either t
hey are not relev
ant to the Gr
oup’s
or they requir
e
accounting whi
ch is consist
ent with t
he Group’s curre
nt accounting p
olicies.
Subsidiaries
are all e
ntities (i
ncluding str
uctured ent
ities)
over which t
he Group has c
ontrol.
The Group
controls an ent
ity when th
e Group is exp
osed to, or
has rights
to, variable r
eturns from it
s involvem
ent with
the entity and
has the abilit
y to affect t
hose returns t
hrough its power
over the ent
ity. Subsi
diaries are f
ully
cons
olidat
ed from the dat
e on which cont
rol is tr
ansferred to t
he Group. They
are decons
olidated from t
he
Inter
-
company
transactio
ns, balances and unr
ealized gains
on transactions
between group compa
nies are
Unrealized
losses
are also eliminate
d. When necess
ary, amounts repo
rted by subsid
iaries have be
en
adjusted to con
form with the G
roup’s accou
nting polici
es.
5.2.3.
Foreign currency t
ranslation
Functional a
nd presentation c
urrency
Items included i
n the financial s
tatements of each of t
he Group’s entit
ies are measure
d using the curr
ency
of the primary econom
ic environm
ent in which the e
ntity operat
es (“the funct
ional curr
ency”). The
consolidated f
inancial st
atements ar
e presented in E
uros, which is t
he Group’s
presentat
ion cu
rrency.
Transaction
s and balan
ces
Foreign curre
ncy trans
actions (
mainly USD)
are translat
ed into the
currenc
y using th
e applica
ble
exchange rate
on the transac
tion dates
. Monetar
y assets and l
iabilities
denominat
ed in forei
gn currencies
are retranslat
ed at the prese
ntation cur
rency spot
rate of exchan
ge ruling at t
he reporting dat
e.

Foreign curren
cy exchange g
ains and losses
arising f
rom settli
ng foreign cur
rency transact
ions and from
the
retranslati
on of monetary ass
ets and liabil
ities denom
inate
d in foreign currenci
es at the reporti
ng date are
recognized in t
he income st
atement.
Non
-
monetary
items that are measur
ed in terms of hist
orical cost in a forei
gn currency are t
ranslated usin
g
the exchange r
ates as of the dates
of the initial t
ransactions
. Non
-
monetar
y items meas
ured at fair v
alue in
a foreign curre
ncy are transl
ated using t
he exchange rat
es at the date w
hen the fair val
ue is determi
ned.
The results an
d financia
l position
of all gro
up entities th
at have a funct
ional curr
ency diff
erent from t
he
presentatio
n currency ar
e translated int
o the presentat
ion currenc
y as follows
:
•
Assets and liabili
ties for each st
atement of financi
al position pres
ented are trans
lated at the clos
ing
rate at the date
of that stat
ement of financial
po
•
Income and ex
penses for e
ach income s
tatement are t
ranslat
ed at averag
e exchange r
ate (unless
this average is
not a reasonable a
pproximat
ion of the cumul
ative effect
of the rates prev
ailing on
the transactio
n dates, in whic
h case income and ex
penses are trans
lated at the rat
e on the dates
of the transact
ions); and
•
All resulting t
ranslati
on differenc
es are recog
nized in other c
omprehensiv
e income.
So far, the
primary
reven
ue generate
d by the Group re
lates to the s
ale of licenses.
The Group enter
s into license
and/or collab
oration agreem
ents wit
h third
-
party
biopharmaceut
ical partne
rs.
Revenue unde
r these arrangem
ents may includ
e non
-
refunda
ble upfront paym
ents, product
developmen
t
milestone pay
ments, comme
rcial miles
tone payment
s and/or sales
-
based
royalt
y
Li
ce
nse fees represe
nting non
-
r
efundable pay
ments receive
d at the time of signature of lic
ense agreement
s
are recognized
as revenue upon s
ignature of t
he license agreem
ents when t
he Group has no s
ignificant
future perform
ance obligat
ions and col
lectabilit
y of the fees is
assured.
Milestone pay
ments repr
esent amount
s receive
d from the G
roup’s custo
mers or colla
borators
, t
he receipt
of which is depende
nt upon the achieveme
nt of certain scient
ific, regu
latory, or
commercial milest
ones.
Under IFRS 15,
milestone payment
s generall
y represent a form
of variable c
onsideration as
the payment
s
are likely to b
e contingent
on the occur
rence of fut
ure events. M
ilestone pay
men
included in th
e transact
ion price bas
ed on either t
he expecte
d value (proba
bility
-
weig
hted estim
ate) or mos
t
likely amount
approach. T
he most likely
amount is l
ikely to be m
ost predic
tive for milest
one payme
nts with
a binary outc
ome (i.e.,
the Group rec
eives all or no
ne of the miles
tone pay
ment). Varia
ble consider
ation is
only recogniz
ed as revenue when t
he related perf
ormance oblig
ation is satis
fied, and the Group det
ermines
that it is hig
hly probabl
e that there wi
ll not be a s
ignificant
reversal of
cumulativ
e revenue rec
ognized in
Royalty reven
ues arise fr
om the Grou
p’s contrac
tual entitl
ement to rece
ive a percent
age of prod
uct sales
achieved by co
-
contracting parties. As the Group’s co
-
contrac
ting partners
currently
have no pro
ducts bas
ed
on a Celyad
-
techno
logy appro
ved for sale
. T
he Group has no
t received any r
oyalty revenue
to date. Royalt
y

revenues, if e
arned, w
ill be recogn
ized on an acc
rual basis
in accorda
nce with the ter
ms of the c
ontracts
with th
e Group’s c
ustomers when sal
es occur and ther
e is reasonable as
surance that
the receivables
from
outstandin
g royalties wi
ll be collect
ed.
The Group’s grant
income repor
ted under ‘Other
income’ in the c
onsolidate
d statement of
loss is generated f
rom: (i) recovera
ble cash advanc
es (RCAs) granted
by the Regional gover
nment of
Wallonia; (ii)
R&D tax c
redits grant
ed by the Belg
ian federal
government;
and (iii)
grants recei
ved from th
e
European Com
mission under the
Seventh Fram
ework Progra
m (“FP7”), F
ederal Belgian I
nstitute for Healt
h
Insurance (I
nami) and Regi
onal authorit
ies.
Government gr
ants are recog
nized at their
fair value (cal
culated based o
n present value o
f future repay
ment
of grants) wher
e there is reasona
ble assura
nce that the grant w
ill be receive
d, and the Gr
oup will comply
with all attac
hed conditi
ons. Once a gov
ernment gra
nt is recogn
ized, any relat
ed continge
nt liabilit
y (or
contingent
asset) is treat
ed in accordanc
e with IAS 37.
Government g
rants relati
ng to costs
are deferred an
d recognized in
the consolid
ated stat
ement of
comprehensiv
e loss over the per
iod necessar
y to match them with the cost
s that they are intende
d to
Based on the nature of t
ransactions, cas
h inflows rece
ived from gov
ernment
grants provide t
he entity with
financing f
or the design
ated act
ivity. They
are in subst
ance financ
ing cash inf
lows consis
tent with th
e cash
proceeds from
RCAs and ot
her grant
s and are dis
closed i
n the consolid
ated statem
ents of c
ash flows as
“Cash
Flow fro
m financing act
ivities”.
The Group’s grant
income is recog
nized in the consol
idated statem
ent of comprehens
ive loss under “O
ther
income/expe
nse” and as a
non
-
cash adj
ustment in “cas
h flows fr
om operating ac
tivities”
in the cons
olidated
statements of
cash flows.
Recoverable c
ash advances
(RCAs)
The Group receiv
es grants f
rom the Walloo
n Region in the
form of recov
erable cash adv
ances (RCAs
).
RCAs are dedi
cated to suppo
rt specific
developm
ent program
s. All RCA cont
racts, in es
sence, cons
ist of
three phases,
i.e., the “r
esearch phas
e”, the “decis
ion phase” a
nd the “expl
oitation ph
ase”. During t
he
research phas
e, the Group receiv
es funds from t
he Region based on stat
ements of expen
ses. In accordan
ce
with IAS 20.10A and IF
RS Interpretati
ons Committee (
IC)’s conclus
ion that conting
ently repayab
le cash
received from
a governme
nt to financ
e a resear
ch and develo
pment (R&D
) project is a
financial
liabilit
y
under IAS 32,
‘Financia
l instrument
s; Present
ation’, the R
CAs are initi
ally recog
nized, concom
itantly w
it
h
the occurrence
of subsidized ex
pense, as a fina
ncial liabil
ity at fair value (
calculated bas
ed on present val
ue
of future repay
ment of grants)
, determine
d as per IF
RS 9.
The benefit (R
CA grant com
ponent) cons
isting i
n the differe
nce between t
he cash rece
ived (
RCA procee
ds)
and the above
mentioned
financial li
ability’s
fair value (
RCA liabili
ty component
) is treat
ed as a gover
nment
grant in accord
ance with IA
S 20.
The RCA grant com
ponent is recognize
d in profit or loss
under "Other
income"
on a sy
stematic
the periods in whi
ch the entit
y recognizes t
he underlyi
ng R&D expens
es subsidize
d by the RCA.
The fair mar
ket value ad
justments
to the RCA
liability
are reco
gnized in the
consolid
ated statem
ent of
comprehensiv
e loss under “O
ther inc
ome/expense”
and as a non
-
cas
h adjustme
nt in “cash f
lows from
operating act
ivities” in t
he consolidat
ed statement
s of cash flows.

The RCAs liabi
lity contains
two component
s:
•
The fixed part
of the reimbur
sement of 30% is
refundable base
d upon an agre
ed repayment
sched
ule. The i
nitial recog
nition at f
air value is per
formed us
ing the discoun
t rate at the dat
e of the
convention and
the assumptio
n of exploitat
ion until the
end of repayme
nt schedule.
•
The variable par
t (from 70% and up to 170
%) is refundabl
e to the extent of the revenue gen
erated
within exploit
ation phase.
The initia
l recognition at
fair value
of the variable
part of the com
ponent
is based on probabil
ity
-
weigh
ted discounted cas
h flows estimated us
ing Key assumpti
ons listed in
The sales
-
t reim
bursements
and sales
-
de
pendent rei
mbursements ar
e, in the aggr
egate
(including t
he accrued int
erests),
capped at 200% of the pr
incipal am
ount paid o
ut by the Walloon R
egion.
The RCAs liabi
lity compone
nt (RCA fina
ncial liabilit
y) is subs
equently meas
ured at amor
tized cost
using the
cumulative cat
ch
-
up appr
oach under wh
ich the carry
ing amount of
the liabil
ity is adjust
ed to the pres
ent
value of the futur
e estimated rev
enue, discou
nted at the liabi
lity’s origina
l effectiv
e interest rate.
The resultin
g
ad
justment is
recognized wit
hin profit or l
oss
under
“Other inc
ome/expens
e”
.
At the end of the research ph
ase, the Group should wit
hin a period of s
ix months decide whet
her or not to
exploit the resul
ts of the research ph
ase (decision p
hase). The ex
ploitatio
n phase may have a durat
ion of
up to 20 years. In the event
the Group decides to ex
ploit the results
under an RCA, the relevant
RCA
becomes cont
ingently r
efundable,
and the fa
ir value of
the RCA li
ability ad
justed accor
dingly, if
required.
For
more informati
on on the potent
ial financial c
onsequenc
es of these exploit
ation decisi
ons in terms of
potential
reimburseme
nts and sales % f
ees to be paid t
o the Walloon Regi
on, refer t
o note 5.16.
When the Grou
p does not ex
ploit (or ceas
es to exploit
) the result
s of progra
ms under an RCA,
it has to not
ify
the Region of this
decision. This
decision is t
he sole respons
ibility of t
he Group. The rel
ated liabilit
y is then
discharged by t
he transfer of
such results
to the Region. Als
o, when the G
roup decides t
o renounce its
to patents whic
h may result fr
om the research,
title to such pat
ents will be t
ransferred to t
he Region. I
n that
case, the RCA l
iability is e
xtinguishe
d
and
reflected in the statement
of income (lo
ss) under “Ot
her
Since 2013, th
e Group applie
s for R&D tax
credits, a tax incent
ive measure
for European SM
E’s establishe
d
by the Belgian
federal gov
ernment. W
hen capitaliz
ing its R&
D expenses un
der the tax rep
orting fram
ework,
the Group may eit
her i) get a reduc
tion of it
s taxable incom
e (at current
income tax rat
e applicable);
or ii) if
no sufficient
taxable inc
ome is avai
lable, ap
ply for the r
efund of th
e unutilized t
ax credits
, calculated
on the
R&D expenses am
ount for the year.
Such settlement
occurs at t
he earliest
5 financial years
after the tax
credit applic
ation file
d by the Group.
Considering th
at R&D tax cr
edits are ultimat
ely paid by the
public authorit
ies, the relat
ed benefit
is treated
as a governme
nt grant und
er IAS 20 and b
ooked into
other incom
e, in
ord
er to match th
e R&D expens
es
The Group has recei
ved and will co
ntinue to apply f
or grants f
rom European (FP
7), Regional aut
horities and
Federal Belgi
an Institut
e for Health I
nsurance (I
nami). The
se grants are d
edicated to par
tially fin
ance early
stage projects
such as funda
mental researc
h, applie
d research, prot
otype des
ign, etc.
To date, all grant
s received ar
e not associat
ed with any co
nditions.
As per each grant
contract,
grants are
paid upon sub
mission by t
he Group of
a statement
of eligib
le expenses
. The Group i
ncurs proj
ect expens
es
first and asks f
or partial ref
unding accord
ing to the t
erms of the contract
s.

These govern
ment grants ar
e recognized in
profit or loss
under "Other inc
ome" on a systema
tic basis over
the periods in whi
ch the entit
y recognizes t
he underlyi
ng R&D expens
es subsidize
d.
The followin
g categories of int
angible as
sets apply
to the current
Group operati
ons:
Separately ac
quired int
angible assets
Intangible as
sets acquir
ed from t
hird parties
are recogniz
ed at cost
, if and only if
it is pro
bable that futur
e
economic ben
efits associat
ed with the asset
will flow to the Group, and
that the cost can be measu
red
reliably. Subs
equent paym
ents of cont
ingent consid
eration are capit
alized when inc
urred
. Following init
ial
recognition,
intangibl
e assets are c
arried at cost
less any accumul
ated amortiz
ation and accum
ulated
The useful lif
e of intan
gible ass
ets is assess
ed as finite,
except for G
oodwill
are
amortized ov
er the
expected usef
ul economic lif
e and assessed f
or impairment
whenever ther
e is an indication t
hat the
intangible ass
et may be im
paired. T
he amortizati
on period and t
he amortiz
ation method
for an intangi
ble
asset with a fini
te useful life ar
e reviewed at leas
t at each financi
al year end.
Changes in the expect
ed useful
life or the exp
ected patt
ern of consum
ption of fut
ure economic
benefits emb
odied in the as
set are account
ed
for by changing
the amortizatio
n period or met
hod, as appropr
iate, and are treated as
changes in acc
ounting
estimates and
applied prosp
ectively. T
he amortizati
on expense on int
angible assets
with finite liv
es is
recognized i
n the income
statement i
n the expens
e categor
y consistent
with the fu
nction of t
he intangib
le
Patents, Lice
nses and Trad
emarks
Licenses for t
he use of int
ellectual pr
operty ar
e granted for a
period corr
esponding to th
e intellect
ual proper
ty
of the assets li
censed. Am
ortization is ca
lculated on a s
traight
-
line basis o
ver this useful l
ife.
Paten
ts and licens
es are amortiz
ed over the period cor
responding t
o the intellectu
al propert
y (IP) protect
ion
and are assess
ed for impair
ment whenev
er there is an i
ndication t
hese assets
may be impair
ed. Indicati
on
of impairment
is related to the v
alue of the patent
demonstrat
ed by the preclinic
al and clin
ical results
of the
Software only
concerns acqu
ired computer
software lic
enses. Sof
tware is capit
alized on t
he basis of the
costs incurre
d to acquire an
d bring to use
the specific s
oftware.
These
costs are am
ortized over t
heir
estimated usef
ul lives of t
hree to five year
s on a straight
-
line basis.
Intangib
le assets acquired
in a business co
mbinatio
n
Goodwill is a
n asset re
presenting t
he future ec
onomic b
enefits aris
ing from ot
her asset
s acquired i
n a
business comb
ination that ar
e not individ
ually identi
fied and s
eparately re
cognized. Goo
dwill is meas
ured
as a residual
at the ac
quisition dat
e, as the e
xcess of the fa
ir value of
the cons
ideration t
ransferre
d and the
assets and lia
bilities rec
ognized (in ac
cordance wit
h IFRS 3).
Goodwill has a
n indefinite us
eful life and is n
ot amortized b
ut tested for im
pairment at lea
st annually or mor
e
frequently wh
enever event
s or chan
ges in circ
umstances ind
icate that g
oodwill may
be impaire
d, as set for
th
in IAS 36 (Impairment of Assets).

Goodwill aris
ing from bus
iness combi
nations i
s allocated t
o cash gener
ating units
, which are ex
pected t
o
receive futur
e economic be
nefits f
rom synergies t
hat are mos
t likely to ar
ise from t
he acquisi
tion. These c
ash
generating unit
s form the basis of
any future assessm
ent of impairm
ent of the carryin
g value of the acqui
red
In
-
process research a
nd develo
pment costs
The In
-
process
research and devel
opment costs
(“
IPR&D
”) acquired as p
art of a busines
s combinati
on are
measured at fa
ir value at the
date of acqu
isition. Su
bsequent t
o initial rec
ognition, it
is report
ed at cost an
d
is subject to an
nual impairm
ent testing unt
il the date the
project
s are availabl
e for use and from
that moment
,
the
l be amorti
zed over it
s remaining us
eful econo
mic life.
Subsequent R&
D expenditure c
an be capitalize
d as part of the
only t
o the extent that
development s
tage,
when such expenditure meets
the recognition cr
iteria of IA
S 38. In line
industry practice,
the Group determines
that ‘developm
ent stage’ und
er IAS 38 is reached
when the prod
uct
candidate gets
regulator
y approval (u
pon Phase III
completion).
Therefore,
any R&D expend
iture incurr
ed
between the acquisit
ion date and
the devel
opment stag
e should b
e treated as part
of research p
hase and
expensed peri
odically in t
he income stat
ement.
Internall
y generated in
tangible assets
Except qual
ifying deve
lopment
expenditure (
discussed b
elow),
internally g
enerated
intangibl
e assets ar
e not
capitalize
d. Expenditure is
reflected in t
he income stat
ement in the year in w
hich the expen
diture is incurr
ed.
Research and
development
costs
Research cost
s are expe
nsed as inc
urred. Deve
lopment ex
penditure
s on an indiv
idual proj
ect ar
e
recognized as
an intangibl
e asset when t
he Group can de
monstrate:
(a)
The t
echnical feas
ibility of
completi
ng the intang
ible asset s
o that it will
be availabl
e for use or s
ale.
(b)
It
s intention to c
omplete the in
tangible ass
et and use or sel
l it.
(c)
Its ability t
o use or sell the int
angible asset
.
(d)
How the i
ntangible ass
et will gener
ate probable f
uture econom
ic benefits. Am
ong other things,
the
entity can de
monstrate the
existence of
a market f
or the output
of the inta
ngible as
set or the
intangible ass
et itsel
f or, if it is t
o be used internall
y, the usef
ulness of the int
angible asset
.
(e)
The avai
lability
of adequate technic
al, financi
al and other resourc
es to complete the dev
elopment
and to use or sell t
he intangibl
e asset.
(f)
Its ability t
o measure reli
ably the expen
diture attri
butable to t
he intangibl
e asset duri
ng its
For the indust
ry in which the
Group operate
s, the life scie
nce indust
ry, criteri
a a) and d) tend to
be the most
difficult to ac
hieve. Experi
ence shows that i
n the Biotechn
ology sector
technical feas
ibility of c
ompleting th
e
project is met
when such proj
ect completes
successful
ly Phase III of
its development
. For medical dev
ices
this is usually
met at the mom
ent of CE marking.
Following init
ial recogn
ition of the develo
pment expen
diture
as an asset
, the cost model is
applied requir
ing
the asset to be
carried at cost
less any accum
ulated amorti
zation and acc
umulated imp
airment loss
es.
Amortizatio
n of the ass
et begins wh
en developm
ent has been c
ompleted
and the asset
is availab
le for use.
It is amortiz
ed over the pe
riod of expect
ed future b
enefit. Am
ortization is rec
orded in Res
earch &
Development e
xpenses. Dur
ing the period of dev
elopment,
the asset is tested f
or impairment ann
ually, or
earlier when an im
pairment indi
cator occurs
. As of statement of
financial
position dat
es, only th
e

ez
have be
en capitali
zed and are be
ing amort
ized over a per
iod of 17 years
which corresp
onds to the per
iod over whic
h the intell
ectual prop
erty is protec
ted.
5.2.7.
Property, plant and e
quip
Property, pla
nt and equipment
is stated at cost,
net of accumulated d
epreciatio
n and/or accumul
ated
impairment los
ses, if any.
Repair and maintena
nce costs ar
e recognized in t
he income st
atement as
Depreciation i
s calculat
ed on a straight
-l
ine basis ov
er the estimat
ed useful life of t
he asset as f
ollows:
•
Land and build
ings: 15 to 20 y
ears
•
Plant and equi
pment: 5 to 15 y
ears
•
Laboratory e
quipment:
3 to 5 years
•
Office furni
ture: 3 to 10 y
ears
•
Leasehold im
provement
s: based on remain
ing duratio
n of off
ice building leas
e
•
Right
-
of
-
use as
sets: over leas
e term
An item of propert
y, plant and equ
ipment and any si
gnificant part
initially
recognized is der
ecognize
d upon
disposal or wh
en no future ec
onomic benef
its are exp
ected from
its use or
disposal. Any
gain or los
s arisin
g
on derecogniti
on of the asset
(calculated as t
he difference bet
ween the net dis
posal proceeds an
d the
carrying amou
nt of the asset
) is included in t
he income stat
ement when th
e asset is derec
ognized.
The assets’ residu
al values, us
eful lives and m
ethods of depreciat
ion are review
ed at each financi
al year
end, and adjus
ted prospecti
vely, if applic
able.
The determina
tion of whether
an arrangement
is, or contains,
a lease is based on the s
ubstance of the
arrangement
at inception d
ate: whether f
ulfilment
of the arrang
ement is depe
ndent on the us
e of a speci
fic
asset or assets
or the arrang
ement conveys
a right to use the as
set.
The Group lea
ses various of
fices, facili
ties, cars
and IT
-
Leases are rec
ognized as
a ri
ght
-
use asset
and a correspon
ding liabili
ty at the dat
e at which the leas
ed
asset is availa
ble for use by the Gr
oup. Each lease pay
ment is allocat
ed between the li
ability and fin
ance
cost. The financ
e cost is charged to prof
it or loss over t
he lease period s
o as to produce a const
ant periodi
c
rate of interest
on the remain
ing balanc
e of the liabilit
y for each per
iod. The right
-
use a
sset is deprec
iated
over the short
er of the asset
's useful lif
e and the lease ter
m on a straight
-
line bas
is.
Assets
and liabilit
ies arisi
ng from a leas
e are initially me
asured on a pr
esent value bas
is. Lease liabi
lities
include the net
present valu
e of the followin
g lease paym
ents:
•
Fixed payment
s (includin
g in
-
substanc
e fixed paym
ents), less
any lease incent
ives recei
va
ble;
•
Variable leas
e payment that
are based on an
index or a rat
e;
•
Amounts expe
cted to be payabl
e by the lessee un
der residua
l value guar
antees;
•
The exercise pr
ice of a purchase opt
ion if the less
ee is reasonably c
ertain t
o exercise that opt
ion;
•
Payment
s of p
enalties for t
erminati
ng the lease,
if the leas
e term reflec
ts the less
ee exerc
ising that

The lease term
covers the no
n
-
cancellabl
e period for
which the G
roup has the rig
ht to use an
underlyin
g
asset, together
with both:
(a)
covered by an
option to ext
end the le
ase if the Grou
p is reason
ably cert
ain to exerci
se that
(b)
cover
ed by an option t
o terminate t
he lease if the G
roup is reaso
nably cert
ain not to
The lease paym
ents are discount
ed using t
he interest rat
e implicit in
the lease. If
that rate cannot
be
determined, t
he lessee’s inc
remental bor
rowing rate is us
ed, being the r
ate that the les
see would hav
e to
pay to borrow the f
unds necess
ary to obtain an as
set of simil
ar value in a sim
ilar economic
environment
with
similar terms a
nd conditi
ons.
Right
-
of
-
use as
sets are meas
ured at cost co
mprising the f
ollowing:
•
The amount of t
he initial meas
urement of lea
se liabilit
y;
•
Any lease pay
ments made at
or before the c
ommencement
date less
any lease
•
Any initial dir
ect cost
s; and
Payments ass
ociated with
short
-
ter
m leases and
leases of low
-
value asse
ts are recogn
ized on a st
raight
-
line basis as
an expense i
n profit or
loss. Short
-
term lease
s are leases
with a lease t
erm of 12 mont
hs or
less. Low
-
value assets primarily comprise IT
-
The Group sub
leases some of
fice space it l
eases from a he
ad lessor. In it
s capacity as i
ntermediate les
sor,
the Group ass
esses wheth
er the suble
ase is a fina
nce or operat
ing lease
in the context
of the right
-
asset being lea
sed. The suble
ase is classi
fied as a financ
e lease if it tr
ansfers subst
antiall
y all the risks a
nd
rewards inci
dental to owner
ship of th
e underlying r
ight
-
us
e asset. It i
s classified as
an operat
ing lease i
f
it does not transf
er substantial
ly all the risks and rew
ards incident
al to ownershi
p of the underlyin
g right
From time to time, t
he Group may enter into sale an
d leaseback t
ransactions.
When a sale occurs, bot
h the
seller
-
less
ee
and the buyer
-
lessor acc
ount for
the leaseback
in the same m
anner as any ot
her leas
e.
Specifically,
the seller
-
les
see recogniz
es a lease liabil
ity and right
-
use asset
for the leaseback (s
ubject to
the optional ex
emptions f
or short
-
ter
m leases and le
ases of low
-
value assets
).
The Group asses
ses at each report
ing date whet
her there is
an indication t
hat an asset may be im
paired
,
unless there ar
e indicati
ons of impairm
ent at other
points thr
oughout the pe
rio
d
. If
any indicati
on exists, o
r
when annual
impairment
testing for
an asset
is required,
the Grou
p estimates t
he asset’
s recovera
ble
amount. An as
set’s recov
erable amount i
s the higher
of an asset’s or
cash
-
gen
erating unit
’s (CGU) f
air value
less costs to
sell and its value in use a
nd is determin
ed for an indiv
idual asset,
unless the asset
does not
generate cash i
nflows that are large
ly indepen
dent of those f
rom other assets or
group of assets
. In
assessing va
lue in use, t
he estimat
ed future cas
h flows are di
scounted t
o their pres
ent value usi
ng a pre
-
tax discount rat
e that reflects
current market ass
essments of the tim
e value of money and the ris
ks specific
to the asset. I
n determining f
air value less
costs to s
ell, an appropriat
e valuation m
odel is used bas
ed on the
discounted c
ash
-
flow model. F
or intangible
assets under devel
opment (lik
e
IPR&D
), only the fai
r value less
costs to sell ref
erence is all
owed in the impa
irment t
esting process
.
Where the carr
ying amount of an as
set or CGU exceeds
its recoverabl
e
amou
nt, an impairme
nt loss is
immediately re
cognized as a
n expense an
d the asset car
rying value is
written down t
o its recovera
ble

An assessmen
t is made at
each repor
ting date as t
o whether th
ere is any i
ndicatio
n that previo
usly
recognized im
pairment loss
es may no longer ex
ist or may have decrea
sed. If such indicat
ion exists, t
he
Group estimat
es the asset’s or
cash
-
generating un
it’s recover
able amount. A pr
eviously recogn
ized
impairment los
s is reversed o
nly if there has bee
n a change in the assum
ptions used t
o determine the ass
et’s
recoverable am
ount since the last im
pairment loss was
recognized.
The reversal is l
imited so that
the
carrying amou
nt of the asset does not exc
eed its recover
able amount, nor exc
eed the carrying am
ount that
would have been det
ermined,
net of depreci
ation, had n
o impairment
loss been recog
nized for t
he asset in
prior years. Su
ch reversal is r
ecognized in the i
ncome statement
unless the asset
is carried at a r
evalued
amount, in wh
ich case th
e reversal is t
reated as a r
evaluat
ion increase.
An impair
ment loss rec
ognized on
goodwill is ho
wever not rever
sed in a subse
quent perio
d.
As of the statem
ent of financi
al position dat
es, the Gr
oup has two cash
-
g
enerating un
its which consi
st of the
development a
nd commerci
alization act
ivities
on:
•
CYAD product
s candidate ser
ies based on C
AR
-
T technol
ogy, for the i
mmune
-
•
C-
Cathez comm
ercialized m
edical devic
e, for the car
diology segment
.
Indicators of im
pairment used by t
he Group are the pr
eclinical and c
linical resu
lts obtai
ned with the
5.2.10.
Cash and cash
equivalent
s
Cash and cash
equivalents
in the stat
ement of f
inancial pos
ition compris
e cash at b
anks and on han
d and
very short
-
term deposit
s with an or
iginal mat
urity of t
hree months
or less.
Cash and ca
sh equivale
nts are
carried in the s
tatement of f
inancial posit
ion at their nom
inal value.
The Group cla
ssifies its f
inancial ass
ets in acc
ordance wit
h IFRS 9 cat
egories for meas
urement p
urposes.
The classificat
ion depends o
n the purpose
for which the f
inancial asset
s were acquired. M
anagement
determines the
classificat
ion of its
financial asset
s at initial r
ecognition.
‘Amortized c
ost’ measurem
ent categor
y refers t
o loans and recei
vables w
hich are non
-
der
ivative fina
ncial
asset
s, with f
ixed or determin
able payment
s that are not quoted i
n an active mark
et. They are incl
uded in
current asset
s, except for
maturities
greater t
han 12 months
after the end
of the repor
ting peri
od which ar
e
classified as non
-
current assets. This measure
ment category
comprises “c
ash and cash e
quivalents
”, “short
-
term investme
nts”, and relev
ant financi
al assets wit
hin “(non
-
) c
urrent trade and ot
her receiv
ables”, “(no
n
current grant
receivables
” and “other (no
n
All financi
al assets are r
ecognized i
nitially a
t fair valu
e plus or min
us, in the cas
e of a financ
ial asset no
t at
fair value thr
ough profit or los
s, directl
y attribut
able transacti
on costs.
After initia
l measurem
ent,
financi
al assets a
re subsequent
ly measured
at amortize
d cost usin
g the effect
ive
interest rate m
ethod (EIR),
less impairm
ent. Amort
ized cost is
calculated by
taking into acc
ount any disco
unt
or premium on acquisit
ion and fee or cos
ts that are an integra
l part of the EIR
. The EIR amortizatio
n is
included in fin
ance income in t
he income statement
under “Financi
al income”. T
he losses arising f
rom
impairment are
recognized i
n the income st
atement
un
der “Other ex
penses”

5.2.11.4
Impairment o
f financi
al assets
In relation to the im
pairment of f
inancial asset
s, IFRS 9 requires
an expected c
redit loss model. T
he expecte
d
credit loss mod
el requires the Gr
oup to account for
expected credit
losses and changes
in those expecte
d
credit losses
at each rep
orting date t
o reflect
changes in c
redit risk
since ini
tial recogni
tion of t
he financia
l
assets. In ot
her words, it
is no longer nec
essary f
or a credit event t
o have occurre
d before credit l
osses are
Specifically,
IFRS 9 requ
ires the Group t
o recognize a los
s allowanc
e for expected c
redit loss
es on trade
receivables an
d contract as
sets.
In particular, I
FRS 9 requires
the Group to measure the l
oss allowance
for a financial
instrument at a
n
amount equal t
o the lifetime e
xpected credit
losses (ECL) i
f the credit ris
k on that financ
ial instrum
ent has
increased si
gnificant
ly since i
nitial reco
gnition,
or if the fin
ancial inst
rument is
a purchased
or origin
ated
credit
‐
impair
ed financia
l asset. Howev
er, if the credit ri
sk on a financial
instrument has
not increased
significant
l
y since initial r
ecognitio
n (except for a pur
chased or origin
ated credit
‐
impaired f
inancial asset
),
the Group is requir
ed to measure the los
s allowance for
that financial i
nstrument at
an amount equal to
12
‐
months ECL.
IFRS 9 also requires a sim
plified approac
h for measurin
g the loss allowanc
e at an amount
equal to lifetim
e ECL for trade
receivables,
contract
assets and leas
e receivabl
es in certain cir
cumstance
s.
Given the curr
ent nature and s
ize of op
erations of
the Group, t
hese requirem
ents mainly
apply t
o the financ
ial
assets report
ed under ‘n
on
-
current tr
ade receiva
bles’. The
carrying val
ue of these r
eceivables (
resulting
mainly from Mesob
last licens
e agreement com
mented further
in note 5.8) tak
e into account a discou
nt rate
equal to the Gr
oup’s partn
er’s increm
ental borrow
ing rate a
nd, accordin
gly, is alrea
dy credit r
isk
-
The Group con
siders there i
s no signific
ant additi
onal credit
risk relate
d to this rece
ivable, whic
h would not
have been cap
tured by t
he discounti
ng effect
, both at incep
tion of the r
eceivable a
nd at the re
porting da
te.
As such, no addit
ional ECL allo
wance has bee
n recognized f
or this financ
ial asset or any
other finan
cial
5.2.11.5
Financial
assets carried at
amortized co
st
For financial a
ssets carr
ied at amortiz
ed cost the Gr
oup first as
sesses individu
ally whether o
bjectiv
e
evidence of impair
ment exists
individually f
or financial ass
ets that are indivi
dually sign
ificant, or
collectivel
y
for financial
assets t
hat are not
individuall
y signific
ant. If the
Group deter
mines that
no objec
tive evidenc
e of
impairment ex
ists for
an individu
ally assess
ed financ
ial asset,
it includes t
he asset in a
group of fi
nancial
assets with similar credit risk characteristics and collectively assesses them for impairment. Assets that are
individual
ly assessed for
impair
ment and for
which an imp
airment loss
is, or cont
inues to b
e, recogniz
ed are
not included in
a collective as
sessment of
impairment.
If there is object
ive evidence that
an impairment
loss has
been
incurr
ed, the amount of t
he loss is me
as the differ
ence betwee
n the asset’s car
rying amo
unt and the pr
esent valu
e of estimate
d future cas
h flows.
The present va
lue of the est
imated fut
ure cash flows
is discounte
d at the financ
ial asset
s’ origina
l effectiv
e
interest rate.
If a loan has a
variable int
erest rat
e, the discou
nt rate for meas
uring any impai
rment loss is
the
current effect
ive interest
rate.
The carrying a
mount of the as
set is reduced t
hrough the use
of an allowanc
e account and t
he amount of the
loss is recogniz
ed in the incom
e
under “Other expenses”
. Interes
t income continues
to be accrued
on the reduce
d carryin
g amount and
is accru
ed using the r
ate of int
erest us
ed to discoun
t the future c
ash
flows for the p
urpose of mea
suring the imp
airment loss
. The interest
income is recor
ded as part of
finance
income in the i
ncome stat
ement. Loans t
ogether w
ith the a
ssociated a
llowance ar
e writte
n off when th
ere is
no realistic pro
spect of fut
ure recovery. I
f, in a subseque
nt year, the amou
nt of the estimat
ed impairme
nt
loss increa
ses or decr
eases beca
use of an eve
nt occurri
ng after the i
mpairment wa
s recognize
d, the
previously reco
gnized impai
rment loss is
increased or reduce
d by adjusting t
he allowance a
ccount. If a fut
ure
write
-
off is later
recovered,
the recover
y is credited t
o the income s
tatement.

The Group’s f
inancial li
abilities inc
lude “bank
loans”, “le
ase liabilit
ies”, “rec
overable
cash advance
s”,
“contingent co
nsideratio
n and other financ
ial liabil
ities”, “tr
ade payables”
and relevant
within “Other (
non
-
) current
liabilities
”.
The Group cla
ssifies and
measures
its financi
al liabilit
ies at ‘am
ortized c
ost’ using th
e effecti
ve interes
t
method, excep
t “conting
ent consider
ation and ot
her financ
ial liabilit
ies” whic
h are cl
assified
and measur
ed
at ‘fair value t
hrough profit or
loss’.
5.2.12.2
Initial re
cognition and measur
ement
Financial liab
ilities are i
nitially
measured at f
air value.
Transactions cos
ts that are dir
ectly att
ributable to t
he
acquisitio
n or issue of financi
al liabiliti
es are added or dedu
cted from the fair value of
the financial liab
ilities,
as appropriat
e, on initial r
ecognitio
n.
The subseque
nt measurem
ent of financi
al liabilit
ies depends
on their clas
sification as
explained ab
ove. In
Contingent c
onsideration and o
ther financial lia
bilities
The continge
nt considerati
on and other f
inancial li
abilities
are recogniz
ed and measur
ed at fair
value at the
acquisitio
n date. Aft
er initial r
ecognition,
contingent
considerat
io
n arrangeme
nts that are class
ified as
liabilities are re
-
measured at
fair value
with changes
in fair
value recogn
ized in pr
ofit or los
s in accorda
nce
with IFRS 3 an
d IFRS 9. Theref
ore, continge
nt payments wi
ll not be eligi
ble for capit
alization b
ut will si
mply
reduce the con
tingent consi
deration liab
ility.
Details regar
ding the valuat
ion of the c
ontingent cons
ideration ar
e disclosed in n
ote 5.20.
2.
Recoverable c
ash advances
Recoverable c
ash advances
granted by the Wal
loon Region are s
ubsequent
ly measured at
using the cumu
lative catch
up approach, as
described in s
ection 5.2.5 a
bove.
Trade payable
s and oth
er payables
After initia
l recognit
ion, trade
payables an
d other paya
bles are me
asured at amort
ized cost
using th
e
effective int
erest method.
After initial r
ecognit
ion, intere
st bearing loan
s and borrowin
gs are subse
quently meas
ured at amor
tized cost
using the effec
tive interes
t rate method. G
ains and losses
are recogniz
ed in the income s
tatement wh
en the
A financial li
ability is derec
ognized whe
n the obligati
on under the liab
ility is dis
charged or c
ancelled or

When an exist
ing financ
ial liabil
ity is rep
laced by anot
her from
the same lend
er on subst
antially dif
ferent
terms
, or the terms of an ex
isting liabi
lity are subs
tantiall
y modified, s
uch an exchang
e or modific
ation is
treated as a de
recognitio
n of the origi
nal liabilit
y and the rec
ognition of
a new liabilit
y, and the dif
ference
in
the respective carrying amounts is re
cognized in the income statement
under “Change in f
air value of
contingent
considerat
ion” or “Other
expenses”
.
Provisions are
recognize
d when the Group h
as a present oblig
ation (legal
or construct
ive) as a result
of a
past event, it
is probable t
hat an outflow of
resources em
bodying ec
onomic ben
efits will be
required to sett
le
the obligatio
n and a reli
able est
imate can be
made of the am
ount of t
he obligatio
n. Where t
he Group expe
cts
some or all of a prov
ision to be r
eimbursed, for
example u
nder an insur
ance contract
, the reimb
ursement i
s
recognized as
a separate
asset but o
nly when the r
eimburs
ement is vir
tually cer
tain. The
expense relat
ing
to any provisio
n is presented
in the income
statement net
of any reimbur
sement. If
the effect of t
he time
value of mone
y is materia
l, provisions
are disco
unted using
a current pr
e
-
tax rate th
at reflects,
where
appropriate,
the risks specif
ic to the lia
bility. W
here discount
ing is used, the incr
ease in the prov
ision due t
o
the passage of
time is recogni
zed as a fin
ance cost.
The Group oper
ates a pensi
on plan wh
ich requires
defined c
ontributi
ons (DC) to b
e funded by t
he Group
externally at a t
hird
-
party ins
urance company
. Under Belgi
an law, an emplo
yer must guara
ntee a minimu
m
rate of return o
n the Group’s c
ontributions
and thus it is
treated as defi
ned benefit pla
n under IAS 19.
At the statem
ent of financial posi
tion dates,
the minimum rates
of return guarant
eed by the Group are
as
follows, in acc
ordance wit
h the law of 18 Dec
ember 2015:
•
1.75% for the
employer’s c
ontribut
ions paid as fr
om 1 Januar
y 2016 (
variable rat
e based o
n
Governmental
bond OLO rat
es, with a minim
um of 1.75% and a m
aximum of
3.75%);
•
3.25% (fixed r
ate) for t
he employer’s co
ntributions p
aid until
31 December
2015.
The cost of provi
ding benefit
s is determin
ed using the pr
ojected un
it credit (PUC)
method, wit
h actuaria
l
valuations bei
ng carrie
d out at the end of
each annual r
eportin
g period, with t
he assistanc
e of an indep
endent
The
li
ability rec
ognized in the s
tatement of f
inancial posit
ion in respect of
the pension pl
ans is the presen
t
value of the defined b
enefit oblig
ation at the end of
the reporting per
iod less t
he fair value of plan asset
s.
The present va
lue of the def
ined benefit
obligatio
n is determine
d by discount
ing the esti
mated future c
ash
outflows using
interest rat
es of high
-
qual
ity corporat
e bonds that
are denominate
d in the currency
in which
the benefits wi
ll be paid, a
nd that hav
e terms to mat
urity approx
imating to
the
terms of
the related p
ension
The current serv
ice cost of the defined be
nefit plan, rec
ognized in the
income statement
as part of the
operating cos
ts, reflect
s the increase i
n the def
ined benefit o
bligation r
esulting f
rom employ
ee service in t
h
e
current year, b
enefit chang
es, curtailm
ents and settl
ements.
Past-
service cost
s are recognize
d immediat
ely in the inco
me statement.
The net interes
t cost is calc
ulated by applyi
ng the discou
nt rate to t
he net balance of t
he defined benef
it
obligation a
nd
the fair value of
plan assets.
This cost is inc
luded in th
e operating co
sts in the inco
me
Actuarial g
ains and loss
es arising fr
om expe
rience adjust
ments and c
hanges in ac
tuarial
assumptions
are
charged or cre
dited to other c
omprehensiv
e income in the p
eriod in whic
h they arise.

Short
-
term empl
oyee benefits
are those exp
ected to be settl
ed wholly befo
re twelve mont
hs after the en
d of
the annual r
eporting peri
od durin
g which e
mployee serv
ices are r
endered,
but do not i
nclude te
benefits such as
wages, salaries
, profit
-
sh
aring and bon
uses and non
-
monet
ary benef
its paid to current
The undiscount
ed amount
of the benef
its expect
ed to be paid i
n respect of
services r
endered by
employees
in an accounting per
iod is recogniz
ed in that period.
The expected cost
of short
-
term c
ompensated abs
ences
is recognized
as the employ
ees render ser
vices that incr
ease their ent
itlement or,
in the case of n
on
-
accumulatin
g absences,
when the abs
ences occur,
and includes
any addit
ional amo
unts the ent
ity expects
to pay as a result
of unused ent
itlements at
the end of the peri
od.
Certain employ
ees, managers
and members of t
he Board of Directors
of the Group receiv
e remuneration
,
as compensati
on for services
rendered, i
n the form of s
hare
-
based pay
ments which ar
e “equity
-
The cost of equity
-
settled sha
re
-
based paym
ents is measured by
referenc
e to the fair value at t
he date
which they ar
e granted.
The fair value is
determine
d by using a
n appropri
ate pricing m
odel, furt
her details
The cost of equity
-
settled sha
re
-
based paym
ents is recorde
d as an expense, t
ogether with a corr
esponding
inc
rease in e
quity, over
the peri
od in whic
h the service
conditions
are fulfille
d. The cumul
ative exp
ense
recognized f
or equity
-
set
tled transacti
ons at each repor
ting date unti
l the vesting d
ate reflects t
he extent to
which the vesti
ng period has e
xpired and t
he Group’s b
est estimat
e of the number of
equity inst
ruments that
Where the ter
ms of an equit
y
-
settled tr
ansaction awar
d are modif
ied, the mi
nimum expens
e recogniz
ed is
the expense as i
f the terms had not been mo
dified, if
the original terms of
the award were met
. An additional
expense is rec
ognized f
or any modif
ication t
hat increas
es the total
fair value of
the shar
e
-
transaction,
or is otherwi
se beneficial t
o the employ
ee as measured at
the date of m
odifica
The increme
ntal fair val
ue granted
is the diff
erence bet
ween the fair
value of the m
odifie
d equity inst
rument
and the original
equity instrum
ent, both est
imated as at the date of
the modificati
on. If the modific
ation occurs
during the vesti
ng period,
the incr
emental fai
r value granted
is included in the m
easurement
of the amount
recognized f
or services rece
ived over the p
eriod from
the modificat
ion date until t
he date when t
he modified
equity instr
uments vest
, in addition t
o the amount
based on t
he grant dat
e fair value
of the origi
nal equi
ty
instrument
s, which is rec
ognized ov
er the remain
der of the origi
nal vestin
g period. I
f the modific
ation occ
urs
after vesting da
te, the increm
ental fair val
ue granted is r
ecognized i
mmediately
, or over the v
esting
the employee i
s required to c
omplete an ad
ditional per
iod of serv
ice before bec
oming unco
nditionally e
ntitled
to those modifi
ed equity instr
uments.
An equity
-
sett
led award can be forf
eited with t
he departure of a benef
iciary before t
he end of the vest
ing
period, or can
celled and repl
aced by a new equity sett
led award. If
a new award is substitut
ed for the
cancelled a
ward, and des
ignated as a r
eplacement
award on t
he date that i
t is granted,
the cancell
ed and
new awards ar
e treated as if
they were a modific
ation of t
he original aw
ard, as descr
ibed in the prev
ious

If the cancel
lation occur
s during the v
esting peri
od, it is tr
eated as an acc
eleration of
vesting, an
d the Grou
p
recognizes im
mediately the
amount that
would otherwis
e have been rec
ognized for ser
vices receiv
ed over
the remainder
of the vest
ing period.
If the cance
llation occ
urs after t
he vesting p
eriod, no ad
justments w
ill
be made to the ac
counting.
Tax is recogniz
ed in the income st
atement, except t
o the extent that i
t relates to items recog
nized in other
comprehensiv
e income or dir
ectly in equit
y. In this cas
e, the tax is als
o recognized
in other com
prehe
income or dire
ctly in equity
, respectiv
ely.
Deferred tax is
provided using t
he liability met
hod on temporary
differences
at the reporting dat
e betwee
n
the tax bases of
assets and lia
bilities an
d their carry
ing amounts f
or financial rep
or
Deferred tax l
iabilities ar
e recogniz
ed for all tax
able temporar
y differences,
except:
•
Where the defer
red tax liabilit
y arises fr
om the initial reco
gnition of good
will or of an ass
et or liability
in a transactio
n that is not
a business com
binat
ion and, at th
e time of the tra
nsaction,
affects neith
er
the accountin
g profit nor tax
able profit
or loss;
•
In respect of ta
xable temp
orary diff
erences ass
ociated with
investments
in subsi
diaries, as
sociates
and interests i
n joint ventur
es, where the t
iming of t
he reversal of t
he temporary di
fference
s can be
controlled an
d it is prob
able that t
he temporar
y differenc
es will not rev
erse in t
he foreseeabl
e future.
Deferred tax
assets are rec
ognized for al
l deduct
ible temporar
y differen
ces, carry
forward of unuse
d tax
credits and un
used tax losse
s (except if t
he deferred tax
asset arises
from the init
ial recognit
ion of an asset
or liability in a tr
ansaction oth
er than a busines
s combinatio
n and that, at the time of
the transacti
on affect
s
neither accou
nting nor taxabl
e profit or loss
), to the extent t
hat it is probable that t
axable profit wil
l be
available again
st which the deduct
ible temporar
y differenc
es, and the carr
y forward of unused tax
credits
and unused ta
x losses can be ut
ilized.
The carrying
amount of
deferred tax
assets is
reviewed at
each rep
orting date and
reduced
to the exte
nt that
it is not proba
ble that suf
ficient tax
able profit
will be avail
able to all
ow all or part
of the deferr
ed tax asset
to
be utilized. Unr
ecognized def
erred tax asset
s are reassess
ed at each report
ing date and are recogn
ized to
the extent that
it has becom
e probable tha
t future taxabl
e profits wil
l allow the def
erred tax ass
et to be
Deferred tax as
sets and liabil
ities are measur
ed at the tax rates t
hat are expected to app
ly in the year when
the asset is realiz
ed or the liabilit
y is settled,
based on tax rates
(and tax laws) that
have been enacted or
substantively
enacted at the r
eporting d
ate.
Deferred tax as
sets and def
erred tax l
iabilities
are offset
, if a legall
y enforce
able right
exists t
o set off curr
ent
tax assets agai
nst current inc
ome tax liabil
ities and t
he deferred t
axes relat
e to income tax
es levied by t
he
same taxation aut
hority or eit
her the same tax
able entity or dif
ferent taxabl
e entities wher
e there
is an
intention to set
tle the bala
nces on a net basi
s.
5.2.15.
Earnings (
loss) per share
The basic net
profit/(los
s) per shar
e is calculat
ed based
on the weig
hted aver
age number of
shares
outstandin
g during the peri
od.
The diluted ne
t profit/
(loss) per shar
e is cal
culated bas
ed on the weight
ed averag
e number of s
hares
outstandin
g including th
e dilutive ef
fect of pot
entially dil
utive ordin
ary shares suc
h as warra
nts and

convertible d
ebts. Pot
entially dilutiv
e ordinary
shares shoul
d be included i
n diluted ear
nings (
loss) per share
when and only whe
n their con
version to or
dinary shares
would decr
ease the net
profit per shar
e (or incre
ase
The basic net
profit/(los
s) per shar
e is calculat
ed based
on the weig
hted aver
age number of
shares
outs
tandin
g during the period.
The equity is com
prised of the f
ollowing
(furt
her details are given in not
e 5.13)
•
Share capita
l: Share capita
l is compri
sed of the nom
inal amount
of the par
ent’s ordinar
y shares.
This capital is
not distribut
able in the f
orm of dividends
under Belgian C
ompany Code.
•
Share premiu
m: Share pr
emium is com
prised of
: (1) the am
ount receiv
ed attributab
le to shar
e
capital, in exc
ess of the nom
inal amount
of shares iss
ued by the parent
company, r
educed by; (2)
issuance costs
directly at
tributable to t
he capital incr
ease; and (3) abs
orption of t
he accumulated
deficit into t
he share prem
ium, as appr
oved by the Com
pany’s shar
eholders in acc
ordance wit
h
•
Other reserves: Other reserves are comprised of: (1) Share
-
base payment
reserve; (
2) Other eq
uity
reserve from conv
ersion of co
nvertible lo
an in 2013; and (3)
Currency Tr
anslatio
•
Capital reducti
on reserve: Ca
pital reduction
reserve is compr
ised of the absorpti
on of historic
al
losses of the Comp
any into the share pre
mium, as appr
oved by the Company’
s shareholders
in
accordance wi
th Belgian Com
pany Code.
•
Accumulated
deficit: Acc
umulated def
icit is compr
ised of cum
ulative hist
orical losses
of the
Voluntary cha
nge in accou
nting policy
:
During the yea
r ended Dece
mber 31, 2021
, the Company
changed its
accounting
policy r
elated to th
e
presentatio
n of capita
l reducti
on reserve to r
eflect the
absorption of
historical acc
ounting los
ses into sh
are
premium. Und
er the prev
ious policy,
the Co
mpany pres
ented the t
ransfer of los
ses into s
hare premium
as a
component of a
ccumulated def
icit. The C
ompany chang
ed its polic
y to present t
he amount of t
ransfer losses
into the share premium
separately
from accumul
ated deficit on t
he Statements of F
inancial Positio
n and
Changes in Share
holders’ Equi
ty. The chang
e in presentation was
made to provi
de a more faithf
ul
present
atio
n of the natur
e of component
s of the Comp
any’s share
holders’ e
quity. This c
hange has no imp
act
on the Company’s
financial p
osition, r
esults of operati
ons or cash f
lows for any per
iods present
ed.
The Company has
applied this chan
ge in accounting p
olicy
to all periods presente
d for comparat
ive
The interest ra
te risk is ver
y limited as the G
roup has only a lim
ited amount of financ
e leases and
outstandin
g bank loan
s
. So f
ar, becaus
e of the immat
erialit
y of the expos
ure, the Gr
oup did not e
nter into
any interest he
dging arrang
ements.
The Group has a lim
ited amount of t
rade receiv
ables due t
o the fact that sales
to third part
ies are not
significant a
nd thus the Gr
oup’s credit
risk ari
ses mainly f
rom cash and ca
sh equivalents
and deposit
s with

banks and financ
ial institut
ions. The Group only w
orks with int
ernational reput
able comm
ercial banks an
d
The maximum credit
risk, to which the Gr
oup is theoretic
ally expos
ed as at the statement of
financial positi
on
date, is the carr
ying amount
of financial ass
ets. G
iven the current
nature and siz
e of operations
of the Group,
the requireme
nt of the G
roup to measure the loss
allowanc
e for a financia
l instrument at
an amount equ
al
to the lifetime e
xpected cre
dit losses (ECL),
mainly apply
to the financia
l assets repor
ted under ‘no
n
-
trade receiv
ables’. The c
arrying v
alue of t
hese receivab
les (result
ing mainly
from Mes
oblast lic
ense
agreement co
mmented furth
er in note 5.8) take int
o account a di
scount rate equal t
o the Group’s part
ner’s
incremental
borrowing rat
e and, acc
ordingly, is
already cr
edit risk
-
ad
justed. T
he Group consi
ders there
is
no significant add
itional cred
it risk relat
ed to this receiva
ble, which wo
uld not have been capt
ured by
discounting ef
fect, both at
inception of the r
eceivable and at
the reporting d
ate. As such,
no additional EC
L
allowance has
been recogniz
ed for this fina
ncial asset
or any other fina
ncial asset
.
The
Group is exposed to for
eign exchange r
isk as certain collabor
ations or s
upply agreement
s of raw
materials are denom
inated in USD.
Moreover,
the Group has also invest
ments in for
eign operations
, whose
net assets are ex
posed to for
eign currenc
y translation r
isk (US
D). So far, becaus
e of the imm
ateriality of
the
exposure, the
Group did not
enter into any
currency h
edging arrang
ements.
At December 31,
202
1
, the foreig
n exchange ris
k exposure exi
sts mainly on t
he cash denominat
ed in USD.
A depreciatio
n of 1% on
t
he USD versus EU
R would transl
ate into an unr
ealized fore
ign exchan
ge loss of
Liquidity risk
The Group monit
ors its risk t
o a shortage of f
unds using a rec
urring liqui
dity planni
ng tool.
The Group’s objec
tive is to mainta
in a balance bet
ween continuit
y of funding and flexi
bility thr
ough the use
of bank deposit
and leases.
Refer to note
5.19 for an a
nalysis of
the Group’s
non
-
derivat
ive financi
al liabil
ities into
relevant matur
ity
groupings bas
ed on the remaining per
iod at the st
atement of financ
ial position date t
o the contractu
al
maturity date.
The amounts d
isclosed in t
he table are the c
ontractua
l undiscount
ed cash flows
.
The Group’s objec
tives when
managing capit
al are to safeguar
d the Group’s
ability to cont
inue as a goin
g
concern in order
to provide ret
urns for sharehol
ders and benefit
s for other stakeho
lders and to m
aintain an
adequate str
ucture to limit
to cost of capit
al.
5.4
Critical accounting estimates and judgments
8
The preparatio
n of the Group’s f
inancial statem
ents require
s management
to make judgment
s, estimat
es
and assumptio
ns that affect the report
ed amounts of
revenues, expens
es, assets
and liabilities,
and the
disclosure of c
ontingent
liabiliti
es, at the end of
the reportin
g period.
8
The uncertainly raised by the COVID
-
19 pandemic i
s not impacting the critical acc
ounting estimates and judgments. Fo
r
additional information on COVID-
19 pandemic update, refer to note 5.2.1.

Estimates and
judgments ar
e continual
ly evaluat
ed and are base
d on histor
ical experi
ence and oth
er factors,
including ex
pectations of
future event
s that are believ
ed to be reas
onable under
the circums
tances.
Uncertainty
about these as
sumptions
and estimat
es could res
ult in outc
omes that requi
re a materi
al
adjustment t
o the carrying am
ount of the ass
et or liabilit
y affected in f
uture periods
.
In the process
of applyi
ng the Gr
oup’s accou
nting polici
es, managem
ent has mad
e judgments
and has use
d
estimates and
assum
ptions conc
erning the
future. The res
ulting acco
unting estim
ates will, by
definiti
on,
seldom equal the r
elated actual resu
lts. The estim
ates and assumpti
ons that have a signific
ant risk of
causing a mate
rial adjustme
nt to the carr
ying amounts
of assets and li
abilities wit
hin the next
financial ye
ar
Going Concern
Wh
en assessing goi
ng concern, t
he Board of D
irectors cons
iders mainly t
he followin
g factors:
•
The treasury a
vailable at t
he statement of
financial posi
tion date;
and,
•
The cash bur
n projected i
n accordanc
e with the a
pproved b
udget for next
12
date the financ
ial stateme
nts are issued,
which are subj
ect to judgm
ents by mana
gement whil
e
considering
all informat
ion availabl
e at the repor
ting date s
uch as sign
ificant
expenses
and cash
outflows in r
elation to
–
amo
ng others
t
he ongoing cli
nical t
rials, the co
ntinuation
of researc
h and
development p
rojects, and t
he scaling
-
u
p of the Company’s
manufacturi
ng facilit
ies;
•
The availabi
lity of grant
fundin
g and outcome
of ongoing and
future grant
applicati
ons paybac
k loan
to be received
for the next 12
month perio
d; and
•
The financial f
acilities o
pen to the compa
ny for raisin
g new funds by ca
pital increas
e operations
.
The recognitio
n of revenue rel
ating to licens
e and collabor
ation agr
eements i
nvolves managem
ent estimat
es
and requires ju
dgement as to:
(i)
Classifying t
he licens
e agreement
(right
-
to
-
-
to
-
access
license
) in accordanc
e with
‘Licensing’ A
pplicatio
n Guidance set
forth in IFR
S 15;
(ii)
Identifying the
performance o
bligations
comprise
d in the contract
;
(iii)
Estimating pr
obability f
or (pre
-
)c
linical devel
opment or com
mercial milest
one achiev
ement;
(iv)
Determinin
g the agreed varia
ble considerat
ions to be inclu
ded in the transacti
on price taking
into account t
he constrai
ning limit
of the “highly pr
obable” c
riteria;
(v)
Allocating the trans
action pric
e according t
o the stand
-
al
one selling pri
ce of each of t
he
performance o
bligations
; and
(vi)
Estimating the
finance compone
nt in the transacti
on price, based on t
he contract
expected
duration and di
scount rate.
M
anagement mak
es its judgm
ent taking int
o account all inf
ormation ava
ilable about c
linical status
of the
underlying pr
ojects at t
he reporting d
ate and the leg
al analysis
of each applic
able contrac
ts. Fur
ther details
ar
e contained i
n Note 5.23.
Recover
able Ca
sh Advan
ces rec
eived
from th
e Walloo
n Region
As explained in not
e 5.2.5, accounti
ng for RCAs requir
es initial r
ecognition of
the fair value of t
he loan
received to
determine th
e benefit of
the bel
ow
-
market r
ate of inter
est, which s
hall be
measured as t
he
difference bet
ween the initia
l carrying va
lue of the loan an
d the proceeds rec
eived. Loans gr
anted to entiti
es
in their early st
ages of operati
ons, for which
there is signif
icant uncerta
inty about wh
ether any income w
ill
ultimately be g
enerated and f
or which any incom
e which will b
e generated wil
l not
aris
e until a numb
er of

years in the fut
ure, normally
have high inter
est rat
es. Judgment is r
equired to deter
mine a rate whic
h may
apply to a lo
an granted o
n an open mar
ket basis
and to det
ermine pro
jected rev
enue that
will derive i
n the
future from t
he products
that benef
ited from t
he support of
the Walloon
Region. The e
stimated pr
ojected
revenue by manag
ement is sim
ilar to the ones used f
or impairment
of non
-
f
inancial asset
s (see note 5.6.
2).
In accordance
with the RCA agreem
ents, the f
ollowing two com
ponents are ass
essed when calc
ulating
estimated futur
e cash flows:
•
30% of the init
ial RCA, w
hich is rep
ayable w
hen the Group
exploits t
he outcome of
the res
earch
•
A remaining amount,
which is repayab
le based on a royalty
percentage of
up to a level of 170
% of the initial gr
anted amount
.
After initial rec
ognition, RC
A liabilities
are measured at amor
tized cost us
ing the cumulat
ive catch up met
hod
requiring man
agement t
o regularly r
evise its
estimates of
payments
and to adjust the carryi
ng amount of
the
financial liab
ility to r
eflect actual an
d revised es
timated cas
h flows.
Measure
ment and i
mpair
ment of no
n
With the excep
tion of goodwi
ll and certain i
ntangible as
sets for which a
n annual impa
irment t
est is required
,
the Group is requi
red to conduc
t impairment
tests where ther
e is an indicati
on of impairm
ent of an asset.
Measuring the fai
r value of non
-
fina
ncial assets
requires judgem
ent and estimat
es by management.
These
estimates co
uld change s
ubstantial
ly over tim
e as new fact
s emerge or n
ew strategies
are taken by t
he
Group. Further
details (i
ncluding sens
itivity a
nalysis) are c
ontained in not
e 5.6.2.
Contingent consideration and other financial liabilities
The Group recor
ded a liabilit
y for the es
timated fair va
lue of conting
ent cons
ideration ar
ising from bus
iness
combinations
. The estimat
ed amounts are the ex
pected paym
ents and timing of
such payments, det
ermined
by considerin
g the poss
ible scenar
ios of for
ecast sales a
nd other per
formance cr
iteria, t
he amount to
be
paid under each s
cenario, an
d the probabilit
y of each scen
ario, which is t
hen discount
ed to a net present
value. The est
imates coul
d change subst
antially ov
er time as
new facts em
erge and each s
cenario devel
ops.
Further detai
ls on managem
ent’s estim
ations and sens
itivit
y analysis are
contained in no
te 5.20.2.
5.5
Operating segment information
The chief operat
ing decision
maker (CODM)
, who is responsibl
e for making str
ategic decisions
, allocati
ng
resources and
assessing per
formance of
the
Group,
has been identif
ied as the B
oard of Direct
ors.
Since the ac
quisition of
the oncolo
gical platf
orm in 2015,
the mana
gement and t
he CODM have
determin
ed
that there are t
wo operatin
g segments
, being:
•
the immuno
-
on
cology segmen
t regrouping al
l assets develo
ped based on the CAR
-
;
•
the cardiology
segment,
regrouping t
he Cardiopoies
is platfor
m, C
Corporate se
gment includ
es costs
for general and
administrat
ion funct
ions not alloc
ated to the ot
her
Although the G
roup is curre
ntly active i
n Europe an
d in the US, no ge
ographica
l financial
informati
on is
currently ava
ilable given t
he fact that the core operat
ions are curr
ently still in a s
tudy phase. No
disaggregate
d informat
ion on product lev
el or geograp
hical level
or any
other level c
urrently
exists and henc
e
also not consi
dered by the B
oard of Direct
ors for asses
sing performanc
e or alloc
ating resources
.

The CODM do
es not revie
w assets by s
egments,
hence no s
egment infor
mation per
assets is dis
closed.
As
of December 3
1, 2021, the main G
roup’s no
n
-
current as
sets are locate
d in Belgium.
Since
2017
, the G
roup is fully f
ocused on the devel
opment of
its immuno
-
oncology
platfor
m. Therefore,
for
the year ende
d December 3
1, 2021, mos
t of the R&D
expenses w
ere incurre
d in t
segment, in lin
e with prior y
ear.
For the year ended December
31, 202
1
Cardiology
-
oncology
Corporate
Revenue recognized at a point in
time
Revenue recognized over time
Resea
rch & Dev
elop
ment
expens
es
General & Administrative expenses
Change in fair value of contingent consideration
Profit/(Loss) before taxes
For the year ended December
31, 20
Cardiology
-
oncology
Corporate
Group Total
Revenue recognized at a point in
time
Revenue recognized over time
Resea
rch & Dev
elop
ment
expens
es
General & Administrative expenses
Change in fair value of contingent consideration
Profit/(Loss) before taxes
Profit/(Loss) for the year 20
5.6.1.
In
tangible asset
s details and
balance rol
l forward
The change in int
angible ass
ets is broken do
wn as follows,
per class of as
sets:
Development
licenses,

Currency translation adjustments
Currency translation adjustments
At December 31, 2020
33 678
36 171
At
December 31, 2021
33 678
36 168
The capitalize
d development
costs relat
e to the development
of C
-
Cath
ez
. Since May 2012 and t
he CE
ez
, the developm
ent costs of
C
-
Cath
ez
ar
e capitaliz
ed and amortiz
ed over t
he estimated
residual int
ellectual pr
operty prot
ection as
of the CE mark
ing (
until 2029)
. No other
development
costs
have been cap
italized up t
ill now. Al
l other pr
ograms’ (C
-
Cure, CYA
101, CYAD
-
211…) related
development cost
s have been assesse
d as not being eligibl
e for capital
ization and ha
ve
therefore be
en recogniz
ed in the inc
ome stat
ement as rese
arch and dev
elopment ex
penses. Sof
tware is
amortized over
a period of 3 t
o 5 years.
Goodwill,
, Patents
, Licenses and T
rademarks
relate to the f
ollowing items
:
•
IPR&D
resulted from the pur
chase price a
llocation exer
cise perform
ed for t
he
acquisitio
n of Oncyte LLC in
2015. As of Decem
ber 31, 202
and 20
20
, Goodwill a
nd
are
not amortize
d but tested for im
pairment.
•
Exclusive Agreement for Horizon Discovery’s shR
NA P
CAR
-
T Therap
ies acquired f
or $1.0 milli
on at the end of
December 2
018. In Oc
tober 2019, t
he
Company capit
alized mi
lestone paym
ents for
a total amount
of $0.2 m
illion rel
ated to the e
xercise
of the option o
n the Exclusiv
e Agreement
and to the firs
t effectiv
e IND filin
g related to CY
AD
-
02. In
November 2020,
the Group capitaliz
ed the milest
one payments
for an amount of $0.2 mill
ion related
to the first eff
ective IND, filed by t
he Group, relating to the pr
oduct CYAD
-
211. A
t December 31,
202
1
, milesto
ne payments
are capital
ized for a t
otal amount
of $0.4 milli
on. This pat
ent is amor
tized
over the remainin
g intellectua
l property prot
ection of 20 yea
rs, with the f
irst patent applic
ation file
d
•
Exclusive license f
rom the Moffit
t Cancer Center f
or an antibo
dy directe
d to Tumor
glycoprotei
n (TAG
-
72), w
hich will form t
he basis of a T c
ell engager to be us
ed with the shRNA
platform techn
ology
of t
he Company acquir
ed for $0.1 m
illion in Jan
uary 2021.
•
Exclusiv
e license agre
ement sign
ed with the U
niversity of
Pennsylvan
ia for an eng
ager targetin
g
Glypican 3 (G
PC3) acquire
d for $0.2 millio
n in October
2021.
The Immuno
-
o
ncology cas
h generating
unit (CGU)
has a net book v
alue of €35.7 m
illion at
December 31
,
2021.
This CGU is
m
ainly com
posed of
:

•
IPR&D
resultin
g from the purchas
e price alloc
ation exerc
ise perform
ed for the
acquisitio
n of Oncyte LLC in
2015;
•
The Horizon Discovery’s sh
RNA
•
The new licen
s
es
acquired in 2021 f
rom the Moffit
t Cancer Center and Uni
versity of Penns
ylvania.
The variance o
n the total inta
ngible asset
s as of December
31, 2021, i
n comparis
on to December 3
1, 2020,
resulted prim
arily from
the regu
lar amortiz
ation of C
-
ez
costs and
the Group’s P
atents & L
ice
nses,
compensate
d by new licen
s
e
s acquired in 2
021 regardin
g an exclusive
patent lice
nse agreement
signed
with the Univers
ity of Pennsylvani
a for an engager tar
geting Gly
pican 3 (GPC3) and an exc
lusive licens
e
from the Moff
itt Cancer Cent
er for an ant
ibody
directed to
Tumor
-
associ
ated glycopr
otein (T
AG
-
72), which
both will form t
he basis of
a T cell eng
ager to be us
ed with th
e shRNA plat
form techno
logy
of the Com
pany.
Impairment
testing is deta
iled below.
9
Goodwill and
ex
clusively
relate to the ac
quisition
of the former
entity Oncyt
e LLC (meanwhi
le
liquidated
into Celyad SA
) which was
acquired i
n 2015. Manag
ement perf
orms an annua
l impairment
test
on goodwill an
d on 'indefin
ite lived asset
s' that are not
amortized in acc
ordance w
ith the account
ing policie
s
stated in notes
5.2.6 and 5.2.
9. The impairm
ent test has been per
formed at
the level the i
mmuno
segment corr
esponding t
o the CGU to wh
ich the good
will and th
e
belo
ng as
well as the Hor
izon
Discovery’s
shRNA platf
orm. The recov
erable amo
unt asso
ciated to this
CGU is calc
ulated bas
ed on the
fair value less c
osts to sell mode
l using Level 3 f
air value measur
ements f
or which the Group dev
eloped
unobservabl
e inputs and r
equires
the use of
assumptions.
The calcul
ations use cas
h flow
projections
based
on business pl
an ending in 2
040 based o
n probability
of success
of CYAD
-
02, CY
AD
-
101 and CY
AD
product candi
dates as well as
extrapolatio
ns of projecte
d cash flows
resulting from
the future exp
ected sales
on CYAD
-
101 and CYA
D
-
211 and subl
icense income as
sociated wit
h CYAD
-
CGU recover
able value,
determined ac
cordingly,
exceeds it
s carrying a
mount. Accord
ingly, no im
pairment los
s was recog
nized eit
her
on goodwill,
on the
IPR&D
, on the Horizon Discovery’s shRNA platform or other immuno
-
Management’s
key assumpt
ions (assum
ptions t
o which the unit
’s or group
of units’, rec
overable am
ount is
most sensitive)
about projec
ted cash flows w
hen determi
ning fair valu
e less cost
s to sell are as foll
ows:
Management es
timated the dis
count rate (WA
CC) as of December 31,
2021 to be 13.4% (
14.8%
as of December 31,
2020) based on foll
owing compon
ents: the US
Government Treasur
y bill
Y, the Group’s B
eta, the equity Mar
ket Risk Premium and t
he small firm/il
liquidity pr
emium. Th
e
decrease of the W
ACC is mainly drive
n by a decrease of
the Beta of the Gr
oup which is assoc
iated
with the volatil
ity of the Group’s equ
ity influenc
ed by its ongoing cli
nical progr
ams and overall
competitiv
e landscape withi
n the immuno
-
o
ncology f
ield. Managem
ent corrobor
ates its est
imation
with industry
standards f
or biotec
hnology c
ompanies, th
e WACC use
d by Equity
Research
companies fol
lowing the Gr
oup and transact
ions that have been s
ourced by the G
roup over the
9
The uncertainl
y raised by the COVID
-
19 pandemic
is not impacting impairment testing. Although there ar
e lot of
uncertainties, it does not im
pact the Group’s as
sets valuation as
of December 31, 2021.
For additional i
nformation on
COVID-19 pandemic update, refer
to note 5.2.1.

Management e
stimated the pr
ojected reve
nue (using c
ash flow projec
tions end
ing in 2040
) based
on the followin
g components:
total market
and market shar
e, time
mark
et, treatment
price and
terminal valu
e. Manageme
nt based its est
imation of pro
jected reve
nue and relat
ed component
s
with the Group’
s business plan,
industry data for biot
echnology
companies, evol
ution of similar
R&D
programs, com
parable prices
, expected p
atent expirat
ion perio
d. The weight of
this assumpt
ion is
partially al
leviated by t
he probabil
ity of succe
ss (PoS) prese
nted hereunder
.
•
Probabilities of Success (PoS)
Management es
timated the
PoS based on
Clinical Dev
elopment
Success Rat
es observed by
independent bus
iness intell
igence consu
lting compa
nies for hemat
ological and soli
d tumor
disea
ses. Pr
obability of
the Group’s pr
oduct candidat
es reachin
g the market
used were updat
ed
compared to
en
d based on m
ost recent Cl
inical Dev
elopment Su
ccess Rates
observed
by independen
t business int
elligenc
e consulting c
ompanies
for hematologic
al
and solid tum
or
o
Proba
bilities of
Success as of Dec
ember 31, 202
1:
o
Proba
bilities of
Success as of Dec
ember 31, 202
0:
The PoS estim
ates used by m
anagement a
s of December
31, 2020 utiliz
ed clinic
al developm
ent
success rates
compiled by i
ndependent b
usiness int
elligenc
e consultin
g companies w
hich sourced
data from clinic
al development
programs fr
om 2006
–
2015. The Group’
s updated PoS r
ates for its
clinical progr
ams as of Dec
ember 31, 202
1 incorpor
ates data for c
linical dev
elopment
success
rates from 20
11
–
2020, which the Grou
p believes is a m
ore accurate ref
lectio
n of clinical
development s
uccess rates
across st
age of development
and in aggregat
e.
The sensitivity
analyses are bas
ed on a change in an assumpt
ion while holdi
ng all other assumpt
ions
constant. The f
ollowing table
presents the sens
itivity anal
yses of the r
ecoverable amo
unt of the CGU
associated to t
he immuno
-
on
cology operat
ions:

Regarding the
sensitivity a
nalysis relat
ed to PoS base
d on a change in t
his assumpt
ion while holdi
ng all
other assumpt
ions consta
nt, a decrease by
-
10% or
-
20% to the bott
om
-
line c
umulative P
oS would
a
decrease by
-
10% or
-
20% respect
ively of the r
ecoverabl
e amount of the C
GU associate
d to the immun
o
-
oncology oper
ations. This s
ensitivity
analyze wou
ld imply that t
he recover
able value of t
he CGU exceeds
its carrying am
ount at Decem
ber 31, 2021.
On February 28, 2022,
the Group announc
ed its decisi
on to
y pause
Phase 1b KEYNOT
E
trial evaluatin
g CYAD
-
101 adm
inistered con
currently with
FOLFOX chemot
herapy follo
wed by
PD-
1 therapy, KEY
TRUDA® (pembrol
izumab) in pat
ients with ref
ractory met
astatic colorec
tal cancer
following rep
orts of
two fatalities t
hat presented wi
th similar
pulmonary f
indings. The G
roup is cur
rently
investigatin
g
th
ese reports an
d evaluating a
ny similar ev
ents in addit
ional pati
ents treat
ed on study.
On
March 1, 2022, t
he Group was informed v
ia
-
email commun
ication f
rom the FDA that the KEYNO
TE
-
B79 trial
has been plac
ed on clinica
l hold due t
o insuffi
cient inform
ation to asses
s risk to s
tudy subject
s (see n
ote
5.36).
G
iven the unc
ertain im
pact of this
event on th
e future of KE
YNOTE
-
B79 t
rials at thi
s time, the
is not able t
o assess the im
pact of s
uch outcomes o
n the valuat
ion of relat
ed assets
and cont
ingent lia
bilities
and, therefor
e, has not adjust
ed the relate
d fair value c
alculations
for the clinic
al hold.
Pursuant to 20
17 strategic d
ecision to f
ocus all the eff
orts of t
he Group on the deve
lopment of
the immuno
-
oncology platf
orm and th
e lack of str
ategic business d
evelopment
opportuniti
es identifie
d for the C
(Mayo Licenses), this asse
t had been fully impaire
d as of December 31,
2017. CGU’s
recoverable am
ounts
being confirm
ed to be zero at
current year
-
end, the 10
0% impairme
nt allowanc
e has been carr
ied forwar
d
5.7
Property, plant and equipment
Currency translation adjustments
Currency translation adjustments
Currency translation adjustments
Currency translation adjustments

Property, Plant
and Equipment
is mainly comp
osed of right
-
use on lease
d offices, f
acilities and eq
uipment
(including ve
hicles), of
fice furnitur
e, leasehol
d improvement
s, and laborat
ory equipment
.
The varianc
e on the total
tangible ass
ets as of Dec
ember
31, 2021
resulted pr
imarily i
n new laborat
ories
equipment co
mpensated by
yearly deprec
iation.
The additions for
the period am
ounting €0.4 mi
llion are mainly dr
iven by new labor
atories equipm
ent for €0.
3
At December 31,
2020, the v
ariance on the t
otal tangib
le assets r
esulted primar
ily in new l
eased ass
ets
compensate
d by yearly de
preciatio
n. The addi
tions for t
he year 2020 am
ounting to
€0.9 mil
lion were ma
inly
driven by the rene
wal of leased bui
ldings relat
ing to the Group’s
R&D and manufact
uring f
acilities for
€0.2
million and n
ew leased labor
atories equi
pment for
€0.5 million, se
e disclos
ure 5.30
5.8
Non
-
current trade receivables and other non
-
current assets
Non
-
current trade receivables
Mesoblast license agreement
Total Non
-
cu
rren
t Trade an
d Oth
er rece
ivabl
es
In May 2018,
the Group e
ntered into an
exclusive l
icense agr
eement wit
h Mesoblast
, an Austra
lian
biotechnolo
gy
com
pany, to dev
elop and co
mmercializ
e our intel
lectual pr
operty rights
relating t
o C
-
Cat
hez,
an intra
-
myoca
rdial inject
ion cathet
er. This lic
ense agreem
ent refers to
the right to u
se the compa
ny’s
intellectua
l property as i
t exists at the point in t
ime the
license has been grante
d (May 2018) and for
esees
contingent
milestone paym
ents.
The related rece
ivable is r
eported for it
s discount
ed value (€2.
2 milli
on)
under ‘Non
-
cur
rent trade rec
eivables’.
There are no cor
responding c
ontract
liabilities re
ported at D
31, 2021, as no per
formance
obligation w
as outstand
ing. The Gr
oup has signe
d an amendment
of the
license agreem
ent on January
17, 2022. For
further detail
ed informat
ion, see disc
losure 5.36.
At December 31,
2020, the non
-
cur
rent net
investment in
lease referr
ed to the non
-
cu
rrent receiv
able
recorded und
er IFRS16 Leas
es account
ing standard as
the Group s
ubleases
some office s
paces it leas
es
from a head les
sor.
At Dec
ember 31, 2021,
there is no
current
net invest
ment in lease
R&D Tax credit receivable
Total Non
-
current Grant recevables
3 764
3 679
In 2017, the Group reco
gnized f
or the first time a R&D tax
credit (€1.2 million)
receivable
from the
F
G
included a one
-
time
catch-
up effect. Si
nce 2018, further
R&D tax credit r
eceivables are
recorded on an annua
l basis. For t
he year ended Decembe
r 31, 2021, the
recorde
d additional R
&D
tax credit of
€0.7 million
,
taking into acco
unt all informati
on available as
of December 31, 202
1
received the re
imbursement
from the
F
overnm
ent of €0.6 mill
ion related t
o the fiscal year
2016 ta
x
The non
-
curre
nt assets r
efer to securit
y depos
its paid to the
lessors of th
e buildin
g leased by the G
roup and
a deposit to the S
ocial Securi
ty administrat
ion.

5.9
Trade receivables and other current assets
Tota
l Trad
e and
Other
recei
vabl
es
Current Grant receivables (Others)
Total Current
Grant rec
eivables
Income and other tax receivables
Total Trade receivables, advances and
other current assets
Impairment
of receivabl
es is assessed o
n an individ
ual basis at
the end of each acco
unting year
.
At December 3
1, 202
1
and 20
20
, no receivab
le was overd
ue. There were n
o carrying am
ounts for t
rade and
other receivabl
es denominat
ed in foreign curr
encies, ex
cept for the net i
nvestment in lease f
or which carryi
ng
amount is under
USD. No impairm
ents wer
e recorded on tr
ade receivabl
es and other cur
rent assets (
see
The current net
investment in lease r
efers to the receiv
able recorde
d under IFRS16 Le
ases accou
nting
standard as t
he Group suble
ases some offi
ce spaces it le
ases from a head l
essor.
As of December
31, 202
1
, grant
receivables
for a total am
ount of €1.4 mil
lion has been
recorded due t
o
Walloon Regi
on recoverabl
e cash advanc
es regard
ing CYAD
-0
2 (numbered 80
88), CYAD
-
10
1 (numbered
8212), Cwalit
yCAR (numbere
d 1910028) and new gr
ant conventi
on signed with t
he Walloon Regi
on in 2021
regarding the new en
gagers (numb
ered 8516). T
he increase of the c
urrent grant recei
vables betwe
en the
years 2020 and 202
1 is mainly expl
ained by lower c
ash procee
ds from the Wall
oon Region in 202
1
compared to e
xpenses subsi
dized by these
RCAs and other
grants recogn
ized in 2021.
The increase in
prepaid expen
ses as of December 31,
2021 compared t
o December 31, 2020 f
or €0
is mainly drive
n by the increa
se on prepaid expe
nses on insur
ances combine
d with trans
action costs li
nked
to the LPC equi
ty facility f
or an amount
of €0.2 mil
lion subject
to capital
ization and to
be offset
against a
Given the level
of market int
erest rates f
or corporate depos
its of short
-
term matur
ities, the Gr
oup has not
invested in sh
ort
-
term
deposits over t
he years 2021 and 2
020.
5.11
Cash and cash equivalents

The Group’s cash and cas
h equivalent
s amounted t
o €30.0 million at
December 31, 2021 whic
h account
s
for
an
inc
rease
of €12.8 milli
on as compar
ed to year
-
en
d 2020, ma
inly as a result
of cash proc
eeds from
capital raises d
uring the per
iod partly com
pensated by t
he Group’s o
perations ex
penses.
Cash at banks
earn inter
est at floati
ng rates bas
ed on daily
bank depos
it rates. F
or the year
s ended
December 31,
2021 and 2020
, the earned bank
interests ha
ve been insign
ificant.
5.12
Subsidiaries fully consolidated
The consolidati
on scope of the Group is
as follows, for both cur
rent and comparat
ive years present
ed in
these year
-
en
d financial s
tatements
:
Incorporation
and Place of
ordinary
shares
ordinary
shares held
by the Group
(%)
ordinary
shares held
controlling
Celyad Oncology
Biopharma
Biological Manufacturing Services SA
Cardio3 Inc w
as incorpor
ated in 201
1 to support
clinical and r
egulatory
activities
of the Group
in the US.
Cardio3 Inc wa
s renamed in Cely
ad Inc in 2015.
CorQuest Medi
cal Inc was acquir
ed on November 5, 2014
. CorQuest Medical I
nc. was develop
ing Heart
-
XS,
a new ac
cess route t
o the left
atrium. In Novem
ber 2019,
the patent r
ights relat
ed to Heart
-
XS were sold
to CorQuest M
edTech SRL, a
newly const
ituted Bel
gian company
developing i
nnovativ
e cellular me
dicines.
The Group does
not hold any ordi
nary share
s of CorQuest
MedTech SRL.
Biological Manufacturing Services SA (BMS) was acquired in Ma
y 2016. BMS owns
Practices (‘
GMP
’)
laboratories
. BMS rent
its laboratories t
o Celyad SA s
ince 2009 and unt
il April 30,
2016.
The number of shar
es issued is
expressed in uni
ts
Total number of issued and outstandin
g shares
22 593 956
Total share capital (€'000)
As of December
31, 2021, the share cap
ital amounts
to €78,585 repr
esented by 22,
593,
95
6 fully
authorized
and subscribed
and paid
-
up s
hares with a nomi
nal value of
€3.48
p
er share. This
number does not inc
lude
warrants iss
ued by the Group
and granted t
o certain direct
ors, employ
ees and non
-
em
ployees of t
he Group.
As of Decembe
r 31, 2021, t
he authorized c
apital w
hich has been
used over t
he period 202
1 by the boar
d of
directors
amounts t
o €32,119. The r
emaining availa
ble from the author
ized capital am
ounts to €4,773 as
of
History o
f the
capital o
f the Co
mpany
The Company was
incorporat
ed on July 24, 2007 w
ith a share cap
ital of €62,50
0 by the issuanc
e of 409,375
class A shares.
On August 31,
2007, the Company
issued 26
1,732 class A s
hares to May
o Clinic by w
ay of

a contribution i
n kind of the upfront
fee that was due upon exec
ution of the May
o License for a total am
ount
Round B Investor
s participate
d in a capital increas
e of the Company by w
ay of a
cont
ribution in kind of
a
convertible l
oan (€2,387,
049) and a contr
ibution in cas
h (€4,849,624 of
which €1,94
9,624 was unc
alled) o
n
December 23, 200
8; 204,652 cl
ass B shares were iss
ued at the occasio
n of that capital incre
ase. Since
then, the capita
l is divided in 875,
759 shares,
of which 671,107 are clas
s A shares and 20
4,652 are class
B
On October 29
, 2010, the Company
closed its
third financing r
ound result
ing in a capital
increase tota
ling
€12,100,809.
The capital i
ncrease can b
e detailed as f
•
Capital
incr
ease in cash by c
ertain existi
ng investors f
or a total amou
nt of €2,609,320.
48 by the
issuance of 73,
793 class B shar
es at a price of
€35.36 per shar
e;
•
Capital
i
ncrease in c
ash by cert
ain existing i
nvestors f
or a total am
ount of €4
71,240 by the i
ssuance
of 21,000 class
B shares at a pric
e of €22.44 per
share;
•
Capital
increase in cash by cer
tain new inves
tors for a tot
al amount of €399,
921.60 by the is
suance
of 9,048 class B
shares at a pric
e of €44.20 per s
hare;
•
Exercise
of 12,
300
warrants (“W
arrants A”) gr
anted to the Ro
und C invest
ors with tot
al proceeds
of
€276,012 and i
ssuance of 12,
300 class B
shares. The exer
cise price was
€22.44 per Wa
rrant A;
•
Contributio
n
in
kind by means of conver
sion of the loan
C for a total amount of
€3
,255,524.
48
(accrued inter
est included)
by the issuance of
92,068 class B s
hares at a conversi
on price of €35.
36
•
Contributio
n
in
kind by means of conver
sion of the loan
D for a total amount of
€2,018,879.
20
(accrued inter
est included)
by the issuanc
e of 57,095 class B
shares at a convers
ion price of €35.
36
per share. The
loan D is a c
onvertible loa
n granted by
certain inv
estors t
o the Company on 1
4
October 2010 f
or a nominal amount
of €2,010,
000.
•
Contributio
n
in kind of
a payable towards May
o Foundation f
or Medical Educati
on and Resear
ch
for a total amo
unt of €3,069,
911 by the issu
ance of 69,455 c
lass B shares at
a price of €44.20 per
share. The payabl
e towards M
ayo Clinic was r
elated to (i) researc
h undertak
en by Mayo Clinic in
the years 200
9 and 2010, (ii
) delivery of
certain mater
ials, (iii)
expansion of t
he Mayo Clinic
al
Technology Lic
ense Contrac
t by way the Sec
ond Amendme
nt dated Octob
er 18, 2010.
On May 5, 2011, purs
uant the decisio
n of the Extraor
dinary General M
eeting, the capit
al was reduced by an
amount of €18,
925,474 equiv
alent to the out
standing net
loss as of Dec
ember 31, 2010.
On May 31, 2013, the Com
pany closed its
fourth financi
ng round, the ‘Rou
nd D financing’
. The convert
ible
loans E, F,
G and H previously
recorded as fi
nancial debt
were conver
ted in shares w
hich led to an i
ncrease
in equity for a t
otal amount of
€28,645k of w
hich € 5,026k
is account
ed for as capit
al and € 6,98
8k as share
premium. The r
emainder (€ 16
,631k) is acc
ounted for as
other reserves
on fully s
ettled cont
ributi
on in kin
d
convertible lo
ans. Furt
hermore, a contr
ibution in cash by exi
sting shareh
olders of the Co
mpany led to an
increase in sh
are capital an
d issue prem
ium by an amo
unt of €7,00
0k.
At the Extraor
dinary Shar
eholders Meet
ing of June 11,
2013 all exis
ting cl
asses of shar
es of the Comp
any
have been conv
erted into ordi
nary shares.
Preferred sh
ares have bee
n converted at
a 1 for 1 ratio.
On July 5, 2013,
the Company c
ompleted its I
nitial Public O
ffering. The Com
pany issued 1,
381,500 new
shares at €16.
65 per shares,
correspond
ing to a tot
al of €23,002k.
On July 15, 2
013, the ov
er
-
allotm
ent option was
fully exer
cised for
a total amou
nt of €3,4
50k corresp
onding
to 207,225 ne
w shares. The
total IPO pr
oceeds amounted t
o €26,452
k and the capit
al and the shar
e
p
remium of the Com
pany incr
eased accor
dingly. The co
sts relating t
o the capit
al increases p
erformed i
n
2013 amounte
d to €2.8 millio
n and are present
ed as a deducti
on of share pr
emium.

On June 11, 2013,
the Extrao
rdinary Gener
al Share
holders’
Meeting of Cely
ad SA author
ized the Board
of
Directors to inc
rease the share capi
tal of the Company
, in one or several ti
mes, and unde
r certain conditi
ons
set forth in ext
enso in the art
icles of assoc
iation. T
his authoriz
ation is val
id for a period
of five years st
arting
on July 26, 2013 an
d until July 26,
2018. The Board of
Directors may
increase the s
hare capital
of the
Company with
in the framewor
k of the authori
zed capital f
or an amount of u
p to €21,413k.
Over the cours
e of 2014, the c
apital of t
he Company w
as increas
ed in June
2014 by way of
a capital i
ncrease
of €25,000k re
presented by 5
68,180 new sh
ares fully su
bscribed by M
edisun Internat
ional Limit
ed.
In 2014, the ca
pital of the C
ompany was a
lso increas
ed by way of ex
ercise of
Company warr
ants. Over
four
different
exerci
se periods
, 139,415 w
arrants were
exercised
resulting
in the issua
nce of 139,
415 new shar
es.
The capital an
d the share premium
of the Company wer
e theref
ore increased r
espectively by
€488k and
In January 201
5, the shares
of Oncyt
e LLC were contri
buted to the c
apital of the
Company, resu
lting in
a
capital incre
ase of €3,45
2k and the issu
ance of 93,087 ne
w shares.
In 2015, the Company
conducted two f
und raisings. A privat
e placement was c
losed in March result
ing in a
capital incr
ease of €31,74
5k repres
ented by 713,
380 new s
hares. The Co
mpany also
completed a
n IPO on
Nasdaq in Jun
e, resulting in a
capital incr
ease of €87,965k
represent
ed by 1,460,000 n
ew shares.
Also, in 2015, the capit
al of the Company
was also increas
ed by way of exercis
e of Company warr
ants. Over
three differe
nt exercise per
iods, 6,
749 warrants were ex
ercised r
esulting in t
he issuance of
6,749 new
shares. The c
apital and th
e share premi
um of the Com
pany were ther
efore increas
ed respect
ively by €23
k
Over 2017 the
capital of
the Compa
ny was also incr
eased by
way of exerci
se of Company
warrants
. Over
four differe
nt exercise p
eriods,
225,966 warr
ants were exer
cised result
ing in the iss
uance of 225,
966 new
shares. The ca
pital of the Co
mpany was the
refore incr
eased by €625k.
In August 201
7, pursuant to
the amendm
ent of the agr
eements with
Celdara Medic
al LLC a
nd Dartmout
h
College, the C
AR
T t
echnology inve
ntors, the c
apital of the
Company was inc
reased by w
ay of contrib
ution
in kind of a liability ow
ed to Celdara Med
ical LLC. 328,
275 new shares
were issued at a pric
e of €32.35
(being Celya
d share’s av
erage market
price for t
he 30 days preced
ing the t
ransaction) an
d the capital a
nd
the share prem
ium of the Com
pany were ther
efore increas
ed respectiv
ely by €1,141k
and €9,479k wit
h
an impact on the cas
h and cash equiva
lents, expl
aining why s
uch transactio
n is not disclose
d in the
consolidated s
tatements
of cashflows
.
In May 2018, t
he Company compl
eted a global of
fering of
$54.4 milli
on (€46.1 milli
on), resul
ting in ca
sh
proceeds
for
an amount of €4
3.0 million n
et of bank fees a
nd transacti
on costs.
In May 2019, s
hare premi
um decreased
as a resu
lt of the absor
ption of a
ccounting l
osses for a
n amount o
f
€172.3 milli
on, with a c
ounterpart
in the finan
cial statem
ents line it
em ‘Accu
mulated Defic
it’. The a
bsorption
of the accumulat
ed deficit int
o share prem
ium is a non
-
cas
h accounting t
ransaction.
In September 201
9, the Company
complete
d a global off
ering of $20.0 mi
llion (€18.
2 million), res
ulting i
n
cash proceeds
for an amount of
€16.4 millio
n net of bank f
ees and transac
tion costs
.
On January 8, 202
1, the Company
has enter
ed into a com
mitted equity
purchase agr
eement (“
Purchase
Agreement”)
for up to $40
milli
on with Lincoln P
ark Capital F
und, LLC (“LPC”
), a Chica
go
institution
al inv
estor. O
ver the 24
-
mo
nth term of
the Purchas
e Agreement
, the Comp
any will hav
e the right
to direct LPC to purc
hase up to an aggregat
e amount of $40
.0
million American Depositary Shares (“ADSs”),
each of which repres
ents one ordi
nary share of t
he Company. From
the inception of
the Purchase Agre
ement
through
December 31,
2021, a tot
al of 1,962,812 ne
w shares have b
een issued by
the Company an
d
subscribed
by LPC for a cash proceed of €9.
2 million. A
s of December 3
1, 2021, ther
e is a remaining
access
to the
P
e
stablished w
ith LPC for
an amount of $28.
0 million.

During the ext
raordinary sh
areholders
meeting of
May, 25 2021, t
he shareholders
, in acc
ordance with
Belgian Com
pany Law, a
pproved the a
bsorption
of approxi
mately €43.
3 million
of accountin
g losses int
o
share premium
. As a result, share pr
emium has be
en reduced by a cum
ulative amount
of
€43.3 mi
llion in
the 12 months period end
ed December 31,
2021 (€234.6 milli
on of loss absorpt
ion
recorded from
inception t
o December 3
1, 2021) agai
nst capital
reduction
reserve. This
transacti
on has no
impact on the t
otal equity, c
omprehensiv
e income (los
s), asset
s (including c
ash)
nor l
iabilities.
On May, 21 2021 and June 1
4, 2021, a total
of 188,800 ne
w shares have been is
sued by the Com
pany and
subscribed by
Jefferies un
der the ATM f
or a cash proceed of
€0.9 million.
On December
8, 2021, 6,50
0,000 new sh
ares were iss
ued by decisio
n of the board
of directors
and
subscribed for
by CFIP CLYD LLC
10
in the f
ramework of a priv
ate placemen
t for a global cash pr
oceed of
As of December
31, 2021, all s
hares issued hav
e been fully
paid.
The followin
g share issuanc
es occurred si
nce the incorp
oration of t
he Company:
# of
value
Contr
ibut
ion in
kind (u
pfront
fee M
ayo
Clas
s B share
s
23 December 2008
Capital increase (Round B)
Contribution in kind (Loan B)
Contribution in kind (Loan C)
Contribution in kind (Loan D)
Contribution in kind (Mayo receivable)
Contribution in kind (Loan E)
Contribution in kind (Loan F)
Clas
s B share
s
31 May 2013
Contribution in kind (Loan G)
Contribution in kind (Loan H)
Conversion of Class A and Class B
s
hares in ordinary shares
Exercise of warrants issued in Sept
ember 2008
Exercise
of
warrants issued in May 2010
Ordinary shares
31 January 2014
Ex
ercise of warrants issued in
Ja
nuary 2013
Exercise of warrants issued in Sept
ember 2008
Exercise of warrants issued in Sept
ember 2008
Exercise of warrants issued in October
2010
Exercise of warrants issued in Sept
ember 2008
Contribution in kind (Celdara Medical LLC)
Ordinary shares
7 February 2015
Exercise of warrant issued in May 2010
Exercise of warrant issued in
M
ay 2010
10
CFIP CLYD LLC (“Fortress”), an
affiliate of Fortress Investment Gr
oup.

Exercise of warrant issued in
M
ay 2010
Exercise of warrant issued in O
c
tober 2010
Exercise of warrant issued in
M
ay 2013
Exercise of warrant issued in
M
ay 2013
Exercise of warrant issued in
M
ay 2013
Contribution in kind (Celdara Medical LLC)
Ordinary shares
9 November 20
17
Exercise of warrant issued in May 2013
Exercise of warrant issued in O
c
tober 2010
Exercise of warrant issued in
M
ay
Ordinary shares
22 M
ay 2018
C
apital increase
Nature of the transactions
reserve
reserves
Deficit
shares
Balance as at January 1, 2020
Reme
asurem
ents of
defi
ned
Balance as at December 31,
Reduction of share premium by
Transacti
on costs associa
ted
Currency Translation differences
Reme
asurem
ents of
defi
ned
Balance as at December 31,
The total number
of shares issued a
nd outstandi
ng as of December 31,
2021 totals 22,
593,956 or
dinary
Capital reduc
tion reserv
e
Pursuant to Bel
gian law (“CCA”
), the calculation of
amounts av
ailable for dis
tribution to s
hareholders,
as
dividends or ot
herwise, must
be determined on the basi
s of our
consolid
ated statut
ory
financial
Onc
ology
pr
epared und
er Belgian G
AAP, and not on
the basis of
IFRS
consolidated
financial st
atements.
In additio
n, under the C
CA, the Company m
ay declare or
pay divid
ends
only if, foll
owing the
declaration a
nd issuanc
e of the div
idends, t
he amount of
the Compa
ny’s net ass
ets on

the date of the c
losing of the l
ast financial y
ear accord
ing to the Compa
ny’s statut
ory annual acc
ounts (i.e.
,
the amount of
the assets as
shown in the b
alance sheet,
decreased wit
h provisions
and liabil
ities, all
as
prep
ared in a
ccordance wit
h Belgian acc
ounting rules)
, decreased wi
th the non
-
amort
ized costs o
f
incorporati
on and expa
nsion and the
non
-
amortiz
ed costs fo
r research a
nd developm
ent, does n
ot fall bel
ow
the amount of t
he paid
-
up capital (
or, if higher, t
he called capi
tal), incr
eased by the amou
nt of non
-
distributabl
e reserves.
Finally,
prior to dis
tributing
dividends
, the Company
must allocat
e at least 5
% of the
annual net prof
its (under th
e Company’s
non
-
consoli
dated stat
utory account
s prepared i
n accordance w
ith
Belgian acco
unting rules
) to a legal r
eserve, unt
il the rese
rve amounts t
o 10% of the Com
pany’s sh
are
In addition t
o the above t
est, the Com
pany mu
st also meet a
liquidity
test in o
rder to be abl
e to declare
and/or
During
the extr
aordinary sh
areholders m
eeting of M
ay, 25 2021, the shar
eholders,
in accordance w
ith
Belgian Com
pany Law, a
pproved the a
bsorption
of approxi
mately €43.
3 million
of accountin
g losses int
o
share premium
. As a result, share pr
emium has be
en reduced by a cum
ulative amount
of
€43.3 mi
llion in
the 12 months
period end
ed December
31, 2021 (
€234.6 m
illion of loss
absorption
has been a
pproved an
d
recorded from
inception t
o December 3
1, 2021) agai
nst capital
reduction
reserve. This
transacti
on has no
impact
on the t
otal equity,
comprehens
ive income (l
oss), asset
s (includin
g cash) nor liab
ilities.
The Group oper
ates an equi
ty
-
based com
pensation p
lan, whereby
warrants are gr
anted to dir
ectors
,
management a
nd selected em
ployees and
employees.
The warrant
s are accounted f
or as equity
share
-
based p
ayment plans s
ince the Gr
oup has no le
gal or cons
tructive obl
igation to r
epurchas
e or sett
le
Each warrant g
ives the ben
eficiaries t
he right t
o subscribe to
one common s
hare of the Gro
up. The warran
ts
are granted for
free and hav
e an exercise pr
ice equal to t
he lower of t
he average clos
ing pric
e of the Group’
s
share over the 30 days
prior to the of
fer, and the last
closing price bef
ore the day of the of
fer, as
by the Board of Dir
ectors of the G
roup.
Changes in the
number of warrant
s outstandi
ng and their rel
ated weight
ed average ex
ercise prices
are as
Outstanding as at January 1,
Warrants outs
tanding at t
he end of the year have t
he follow
ing expiry dat
e and exercise
price:
warrants
at December 31,
warrants
outstanding
December 31,
Average
06 May 2013
06 May 2016
06 May 2023
08 December 2016
08 December 2019
08 Dec
ember 2021

The Group has
a reserve of 839,
250 auth
orized warr
ants for shar
e based compe
nsation pla
n as of
Warrants issued on
May 6, 2013
At the Extraor
dinary Shareh
olders Meeti
ng of May 6, 2013, a plan of
266,241 warra
nts was approv
ed.
Warrants were of
fered to Group’
s employees and ma
nagement
team. Out of the 266,24
1 warrants off
ered,
253,150 warra
nts were acce
pted by th
e benefi
ciaries and
2,500 warrant
s are outs
tanding as of D
ecember
The 253,150 w
arrants were v
ested in e
qual tranches
over a peri
od of three y
ears. The
warrants bec
ome
100% vested af
ter the third anniv
ersary the is
suance. The warr
ants that ar
e vested can
only be exercis
ed
at the end of the t
hird calend
ar year follow
ing the issua
nce date, thus
starting o
n January 1,
2017. The
exercise price
amounts t
o €2.64. Warrants
not exercise
d within 10 ye
ars after
issue become null
and void.
Warrant
s issued
on May 5,
2
At the Extraor
dinary Shareh
olders Meeti
ng of May 5, 2014, a plan of
100,000 warra
nts was approv
ed.
Warrants were
offered to Gr
oup’s employe
es, non
-
em
ployees and dir
ectors in f
ive different
tranches. Out
of
the warrants
offered, 94,
400 warrant
s were acce
pted by the be
neficiaries a
nd 35,698 w
arrants ar
e
outstandin
g as of December 3
1, 2021.
The 100,000 w
arrants were v
ested in e
qual tranches
over a peri
od of three y
ears. The
warrants bec
ome
100% vested af
ter the third anniv
ersary the is
suance. The warr
ants that ar
e vested can only be ex
ercised
at the end of the t
hird calend
ar year follow
ing the issua
nce date, thus
starting o
n January 1,
2018. The
exercise price of
the different
tranches range
s from €33.49 to €45.
05. Warrants
not exercised wit
hin 10 years
aft
er issue bec
ome null and v
oid.
Warrant
s issued
on 5 Nov
ember 20
15
At the Extraor
dinary Shar
eholders M
eeting o
f 5 November 2
015, a plan of
466,000 warr
ants was appr
oved.
Warrants were
offered to Gr
oup’s employe
es, non
-
em
ployees and dir
ectors in f
ive different
tranches. Out
of
the warrants of
fered, 353,
550 warrants
were accepted
by the benefic
iaries and 79,
315 warrants ar
e
outstandin
g as of December 3
1, 2021.
These warrant
s vest in equal tranch
es over a period of
three years. T
he warrants become 1
00% vested a
the third anniv
ersary of
issuance. The war
rants that
are vested can only
be exercis
ed as from the end of t
he
third calendar
year followi
ng the issuance d
ate, thus s
tarting on Januar
y 1, 2019. The ex
ercise pric
e of the
different tranc
hes ranges
from €15.9
0 to €34.65. W
arrants not ex
ercised wit
hin 10 years aft
er issue beco
me
Warrant
s issued
on Dece
mber 8, 20
16
On December
8, 2016, the Bo
ard of Direct
ors issued a new
plan of 100,0
00 warrants.
An equivale
nt number
of warrants were canc
elled from t
he remaining pool of war
rants of the plan of Nov
ember 5, 2015. Warrant
s
were offered t
o Group’s emplo
yees and non
-
em
ployees in two dif
ferent tranc
hes. Out of t
he warrants offer
ed,
45,000 warrant
s were accept
ed by the b
eneficiari
es and 7,500 w
arrants
are outstand
ing as of Decem
ber
These warrant
s will vest in e
qual tranches
over a period of t
hree years. T
he warrants bec
ome 100% vest
ed
after the third a
nniversary
of issuanc
e. The warrants t
hat are vest
ed can only be exerc
ised as fr
om the end

of
t
he third calend
ar year followin
g the issuance d
ate, thu
s starting on J
anuary 1, 2020
. The exercis
e price
of the differ
ent tranches
ranges f
rom €17.60 t
o €36.81. Wa
rrants not ex
ercised wit
hin 5 years
after iss
ue
Warrants issued on
June 29, 2017
At the Extraor
dinary Sh
areholders M
eeting of Jun
e 29, 2017, a
plan of 520,0
00 warrant
s was appro
ved.
Warrants were of
fered in differ
ent tranches to
beneficiaries (
employees, no
n
-
employees
and directors). O
ut
of the warrant
s offered, 33
4,400 warr
ants were acc
epted by the b
eneficiaries
and 282,251
warrants a
re
outstandin
g as of December 3
1, 2021.
These warrant
s will be ves
ted in equal t
ranches ov
er a period
of three ye
ars. The warr
ants becom
e 100%
vested after t
he third an
niversary of
issuance.
The warrant
s that are v
ested can only
be exercis
ed as fr
om
the end of the thir
d calendar y
ear following t
he issuance d
ate, thus star
ting on January
1, 2021. The ex
ercise
price of the dif
ferent tranch
es ranges fr
om €31.34 to €48.
89. Warr
ants not exerc
ised within 5 y
ears afte
r
issue become nul
l and void.
Warrant
s issued
on Octo
ber 26,
2018
On October 26, 2018,
the Board of Direc
tors issued a new pl
an of 700,000 war
rants. Warrant
s were offer
ed
in different t
ranches to b
eneficiaries (
employe
es, non
-
empl
oyees and d
irectors
). Out of t
he warrants off
ered,
426,050 warra
nts were acce
pted by th
e beneficiar
ies and 36
5,817 warr
ants are out
standing as of
December
These warrant
s will vest in e
qual tranches
over a period of t
hree years. T
he warrants bec
ome 100%
vested
after the third a
nniversary
of issuanc
e. The warrants t
hat are vest
ed can only be exerc
ised as fr
om the end
of the third cal
endar year foll
owing the issu
ance date, thu
s starting on J
anuary 1, 202
2. The exerc
ise price
of the different
tranches ranges
from €9.36 to €22.04.
Warrants not exer
cised withi
n 5 years after issu
e
become null an
d void after the
of Decem
ber of the 5
th
Warrant
s issued
on Octo
ber 25,
2019
On October 25, 2019,
the Board of Direc
tors issued a new pl
an of 939,500 war
rants.
Warrants were off
ered
in different t
ranches to b
eneficiaries (
employe
es, non
-
empl
oyees and d
irectors
). Out of t
he warrants off
ered,
602,025 warra
nts were acce
pted by th
e beneficiar
ies and 54
9,842 warrant
s are outs
tanding as of
December
31, 2021. The incr
ease in the number of
warrants issu
ed / granted in 2019 f
ollows an update t
o our
benchmark an
alysis whic
h now inc
orporates
development
-
stage, bi
otechnology
peers from
both Europ
e and
the United Stat
es.
In additio
n, the Group ha
d a double all
ocation of war
rants gr
anted in 2019 (Q
1:2019 and
Q4:2019, resp
ectively). F
uture double alloc
ation of warr
ants may be consi
dered. Finally
, over the past t
wo
years, the Group recr
uited new EC m
embers as well as new manag
ers which are remu
nerated in warr
ants.
These warrant
s
will vest in eq
ual tranches ov
er a period of t
hree years. T
he warrants bec
ome 100% vest
ed
after the third a
nniversary
of issuanc
e. The warrants t
hat are vest
ed can only be exerc
ised as fr
om the end
of the third cal
endar year foll
owing the issu
ance date, t
hus start
ing on January 1,
2023. The ex
ercise price
of the different
tranches ran
ges from €
97 to €9.84.
not ex
ercised with
in 5 years aft
er issue
become null an
d void after the
of Decem
ber of the 5
th
Warrant
s issued
on Dece
mber 11,
On December
11, 2020, the
Board of Direc
tors issue
d a new plan of 5
61,525 warr
ants. W
arrants were
offered in d
ifferent tranc
hes to ben
eficiaries (
employees,
non
-
employ
ees and direc
tors).
Out of the war
rants
offered, 555,3
00 warrants wer
e accepted by the benef
iciaries and 532,
133 warrant
s are outstand
ing as of
These warrant
s will vest in e
qual tranches
over a period of t
hree years. T
he warrants bec
ome 100% vest
ed
after the third a
nniversary
of issuanc
e. The warrants t
hat are vest
ed can only be ex
ercised as f
rom the end

of the third cal
endar year foll
owing the issu
ance date, thu
s starting on J
anuary 1, 202
4. The exerc
ise price
of the different
tranches ran
ges from €3.
72 to €
Warrants not exer
cised with
in 7 years aft
er issue
th
Warrant
s issued
on Octo
ber 11,
2021
On October 11, 2021,
the Board of Direc
tors issued a new pl
an of 777,050 war
rants. Warr
ants were offer
ed
in different t
ranches to b
eneficiaries (
employe
es, non
-
empl
oyees and d
irectors
). Out of t
he warrants off
ered,
281,500 warra
nts were acce
pted by th
e beneficiar
ies and 28
1,500 warrant
s are outs
tanding as of
December
These warrant
s will vest in e
qual tranches
over a period of t
hree years. T
he warrants bec
ome 100% vest
ed
after the third a
nniversary
of issuanc
e. The warrants t
hat are vest
ed can only be exerc
ised as fr
om the end
of the third cal
endar year foll
owing the issu
ance date, thu
s starting on J
anuary 1, 202
5. The exerc
ise price
of the first offe
r wa
s of €3.75. W
arrants not ex
ercised withi
n 7 years aft
er issue become
null and void af
ter
th
As a result, as of Decem
ber 31, 2021 ther
e are 2,136,556 war
rants outstan
ding which repr
esent respec
tively
8.64% of the total numb
er of all its is
sued and outstandi
ng shares and 7.
88% of the total voting f
inancial
instruments.
The fair valu
e of the war
rants has
been deter
mined at grant
date base
d on the Bl
ack
-
Sch
oles formula.
The
variables, use
d in this mode
l, are:
06 May
05 May
05 Nov.
08 Dec.
29 Jun.
26 Oct.
25 Oct.
10 Dec.
warrants
266 241
100 000
466 000
100 000
520 000
700 000
939 500
561 525
777 050
warrants
253 150
94 400
353 550
45 000
334 400
426 050
602 025
555 300
281 500
warrants not
fully vested
as of 31
December
2 500
35 698
79 315
7 500
282 251
365 817
549 842
532 133
281 500
exercise
2.64
38.25
30.67
32.04
31.44
18.26
7.12
6.
25
3.75
39.55%
67.73%
60.
53%
61.03
%
60.61%
58.82%
59.14%
58.
84%
56.86%
2.06%
1.0
9%
0.26%
0.40%
0.23%
0.06%
0.38%
0.66%
0.
30%
12.44
25.19
20.04
16.18
15.65
8.90
average
remaining
contractual
1.34
2.
34
3.84
(0.07)
0.49
1.82
2.81
5.94
6.95
The total expens
e recognized
in the income s
tatement for the out
standing war
rants totals
€2.2 million f
or the
year 2021 (€2.
8
million of exp
ense for the pr
ior year 2020).

The Group ope
rates a pens
ion plan w
hich requir
es contribu
tions to be ma
de by the Gr
oup to an ins
uranc
e
company. The
pension pl
an is a defin
ed contrib
ution pla
n. However, b
ecause of the
Belgian
legislat
ion
applicable to 2
nd
pillar pension pla
ns (so
-
calle
d "Law Vanden
broucke"), t
he Group’s defined c
ontribution p
lan
is accounted u
nder IAS 19.
At the end of each year, the G
roup is measurin
g and accountin
g for the potentia
l impact of defined b
enefit
accounting f
or these pensi
on plans with a m
inimum fixe
d guaranteed r
eturn
The contribut
ions to the
plan are det
ermined as
a percenta
ge of the year
ly salary. T
here are n
o employee
contributions
. The benef
it also incl
udes a death in ser
vice benefit
.
The amounts rec
ognized in th
e statement of
financial pos
ition are det
ermined a
Present value of funded obligations
Fair v
alue of
plan as
sets
Total deficit of defined benefit pension plans
Liabi
lity i
n the s
tate
ment o
f finan
cial
position
The change in t
he defined benef
it liabilit
y over the year is
as
At January 1, 2020
2 330
1 932
Interest expense/(income)
-
Return on plan assets, excluding a
mounts included in interest expense/(income)
-
Actuarial (Gain)/loss due to change in ac
t
uarial assumptions
-
Actuarial (Gain)/Loss due to experience
Interest expense/(income)
-
Return on plan assets, excluding a
mounts included in interest expense/(income)
-
Actuarial (Gain)/loss due to change in ac
t
uarial assumptions
-
Actuarial (Gain)/loss due to change in de
mogra
phic assumptions
-
Actuarial (Gain)/Loss due to experience
(537)
-
(537)
The plan asset
s are 100% inves
ted in an insur
ance product
.

The income stat
ement charg
e included in o
perating prof
it for post
-
employm
ent benefits
amount to:
Expected return on plan assets
Net per
iodic pens
ion cost
The re
-
measur
ements includ
ed in other com
prehensiv
e loss amount to:
Effect of changes in actuarial assumptions
Effect of experience adjustments
Effect of changes in demographic
(Gain)/Loss on assets for the year
Remeasurement of post
-
employment ben
efit obligations
Plan assets
relate al
l to qualify
ing insur
ance polici
es. The sig
nificant act
uarial ass
umptions as
per Decembe
r
31, 2021 were as f
ollows:
Demographic
assumptions
(for both current
and comparat
ive years pres
ented in thes
e year
-
end f
inancial
•
Mortality tabl
es: mor
tality rates
-
5 y
ear for the m
en and 5 year for
the women
•
Withdrawal r
ate: 13.5% f
or age <55,
0.0% for age ≥5
5 (vs 15% each
year at Decem
ber 31, 2020)
•
Yearly inflat
ion rate:
2.0% (vs 1.8% comp
ared to compar
ative peri
od)
•
Yearly salary r
aise: 1.5% (a
bove infl
ation), no chan
ge compared t
o last year
•
Yearly disco
unt rate: 1.
0% (vs 0.6% l
ast year).
The discount
rate reflects
the yield o
n high qual
ity
(AA) long
-
term corporat
e bonds (withi
n the EURO
zone) having t
he same durat
ion as the
duratio
n
of the pension l
iabilities at
the valuation
date.
If the discount r
ate would decr
ease by 0.5% then,
the defined benef
it obligatio
n would increase by
1.32%.
If the discount
rate would incr
ease by 0.5% t
hen the define
d benefit
obligation wo
uld decreas
e by 0.35%.
The above sens
itivity analys
is is based on a chan
ge in an assumptio
n while holdin
g all other assumpt
ions
constant. In pr
actice, this is
unlikely t
o occur, and chan
ges in some of t
he assumpti
ons may be corre
lated.
When calculati
ng the sensitiv
ity of the def
ined benefit
obligatio
n to significant
actuarial
assumptions t
he
same method (pres
ent value of
the defined benefit obli
gation cal
culated wit
h the projected u
nit credit metho
d
at the end of the r
eporting p
eriod) has bee
n applied as w
hen calculat
ing the pens
ion li
ability recog
nized
within the st
atement of f
inancial
Through its def
ined benefit pens
ion plan, the Gr
oup is exposed to sever
al risks,
the most significant of
which
•
Changes in dis
count rate: a d
ecrease in disc
ount rate wi
ll increase plan lia
bilities;
•
Inflation ri
sk: the pensio
n obligatio
ns are link
ed to inflatio
n, and higher i
nflation
will lead t
o higher
liabilities.
The majority of
the plan’s as
sets are either
unaffec
ted by or loose
ly correlated w
ith
inflation, m
eaning that an i
ncrease i
n inflation w
ill also incre
ase the defic
it.
The investment
positions are m
anaged by the insuranc
e company wi
thin an asset
-
liability m
atchin
g
framework that
has been developed t
o achieve long
-
ter
m investments t
hat are in line with the oblig
under the pens
ion schemes.

Expected cont
ributions t
o pension p
lans for next f
inancial year
amount to €0.2 m
illion.
5.16
Recoverable Cash Advances
Non
-
Current portion as at January 1
,
4 220
4 139
Non
-
Current portion as at December 3
1,
Current portion as at January 1,
Current portion as at December 31,
Total Recoverable Cash Advances as at
January 1,
4 484
Total Recoverable Cash Advances
as at December 31,
The Group rec
eives gov
ernment su
pport in the f
orm of reco
verable c
ash advanc
es from t
he Walloon R
egion
in order to compens
ate the resear
ch and devel
opment cost
s incurred by t
he Group. Refer
to note 5.2.5 an
d
At December 31,
202
1
, the Group has
been granted rec
overable cash adv
ances
to €25.8 milli
on
related activ
e contracts. O
ut of this amount:
i) €19.3 million h
ave been receiv
ed to date; ii) €6.5 m
illion shoul
d
be received in
2022 or later
depending
on the progres
s of the diff
erent pr
ograms partia
lly funde
d by the
Region.
the
Gr
oup has rec
eived recover
able cash adv
ances am
ounting to €1
5.3 million r
elated
to contracts f
or which the expl
oitation has b
een abandon
ed (mainly re
lated t
o the C
-
For further det
ails, refer
ence is made to t
he table b
elow which sh
ows, for
active contrac
ts
(i) the year for
which amounts
under those a
greements hav
e been recei
ved and initi
ally recogniz
ed on the st
atement of
financial pos
ition for t
he financi
al liabilit
y and d
eferred gra
nt income com
ponents and
(ii) a de
scription of t
he
specific char
acteristi
cs of those recov
erable cash adv
ances includ
ing repayment
schedule and inf
ormatio
n
on other outst
anding advanc
es. Underly
ing R&D is ong
oing
In 202
an
d beyond, the
Group will hav
e to
make exploitat
ion decisio
ns on the remainin
g RCAs (agree
ments numbered 80
87, 8088,
1910028, 8212
,
Amounts received for the years
s to be
December
Prior
ted
cashed
2022
and
Status
reimbursed
(cumulative
ez
ez
ez
-
Regarding acti
ve contract
s (in exploit
ation or resear
ch
status):
The contract 5
915 has the foll
owing specif
ic character
istics:

•
Funding
by the
Region cover
s 70% of the budgete
d project cos
ts;
•
Certain
act
ivities have t
o be performe
d within the Regi
on;
•
In
case of an o
utlicensing agr
eement or a sa
le to a third par
ty, the G
roup will have to pa
y 10% o
f
the price receiv
ed (excl.
Of
V
AT) to the Regio
n;
•
Sales
-
indep
endent reimb
ursements
, sales
-
d
ependent reim
bursements
, and amou
nts due in cas
e
of an outlicens
ing agreem
ent or a sale t
o a third part
y, are, in t
he aggregate,
capped at
100% of
the
principa
l amount paid o
ut by the Region;
•
Sales
-
depen
dent reimbursem
ents payable in any give
n year can be set
-
-
independent r
eimbursem
ents already
paid out durin
g that year;
•
-
ind
ependent reim
bursement
and sales
-
dependent
reimbursem
ent may
possibly be a
dapted in c
ase of an outlic
ensing a
greement,
a sale to a t
hird party
or industr
ial use
of a prototype or pilot
installat
ion, when obtainin
g the consent of
the Walloon Regio
n to proceed
The RCA liabili
ty associat
ed to the contr
act 5915 amount
ed to €0.3 mill
ion.
The other cont
racts have the f
ollowing spec
ific char
acteristic
s:
•
Funding
by the
Region cover
s from 45 to 70% of t
he budgeted proj
ect costs;
•
Certain
act
ivities have t
o be performe
d within the Euro
pean Union;
•
Sales
-
indep
endent reimbur
sements repr
esent in t
he aggregate 30
% of the principa
l amount;
•
Sales
-
indep
endent reimbur
sements and sa
les
-
depen
dent reimbur
sements ar
e, in the aggregat
e
(including t
he accrued int
erests),
capped at 200% of the pr
incipal am
ount paid o
ut
by the Regi
on;
•
Interests
(at Euribor 1 year (as
applicabl
e on the fi
rst day of t
he month i
n which the
decision
to grant
the relevant R
CA was made + 100 basis
points) ac
crue as of the 1st day of
the exploitati
on phase;
•
-
ind
ependent reim
bursement
and sales
-
dependent
reimbursem
ent may
possibly be a
dapted in c
ase of an outlic
ensing a
greement,
a sale to a t
hird party
or industr
ial use
of a prototype
or pilot install
ation, when o
btaining t
he consent of
the Region to pr
oceed theret
o.
•
In
case of
bankruptcy, the r
esearch result
s obtained by t
he Group under those cont
racts are
expressed to b
e assumed by the Re
gion by operat
ion of law.
The RCA liabili
ty associat
ed to the oth
er contract
s amounted to €5.
9 millio
n, which mai
nly incorpor
ate th
e
sales
-i
ndepend
ent reimburs
ements for
€4.4 million and t
he sales
-
dep
endent reimbur
sements f
or €1.5
The table below s
ummarizes,
in addition to the speci
fic char
acteristics des
cribed abov
e, certain term
s and
conditions for
the recovera
ble cash advanc
es:
Research
of total
project
Interest
rate
due in
case of
70%
5.00%
€40k in 2012 and €70k each year after
From €10k to €51k starting in 2013 until
30% of advance is reached
From €25k to €125k starting in 2015
until 30% of advance is reached
From €20k to €50k starting in 2019 until

From €35k to €70k starting in 2019 until
From €25k to €75k starting in 202
From €35k to €106k starting in 202
2
From €21k to €42k starting in 2022 until
From €34K to €102K
s
tarting in 2024
From €11K to 33K starting in 2024 un
ti
l
5.17
Other non
-
current liabilities
As of Decembe
r 2020, the Gro
up recorded a
provision for
onerous co
ntracts
for a total amo
unt of €0.9 mi
llion
in order to cov
er the cont
ractual obl
igations,
mainly on c
linical acti
vities fo
llow
-
up a
nd studies
closing c
osts,
after the Group
’s decision t
o disconti
nue the developm
ent of fir
st
-
generatio
n, autologous
CAR T candidate
CYAD-
01.
T
-
current port
ion of this prov
ision as of Decem
ber 31, 202
1. The current
portion of the p
rovision reac
hes an amount
of €0.4 milli
on as of December
31,
2021 (
see note 5.1
8).
As of December 31,
2021, the G
roup recorded a
non
-
current
liability
of €0.2 mill
ion regardin
g a non
-
refundable,
non
-
creditabl
e sublicens
e fee to be paid on an a
nnual basis t
o Dartmouth in c
onnection wit
h the
December 202
1 amendment
agreement (se
e note 5.34.1)
.
5.18
Trade payables and other current liabilities
Other cur
rent liabilitie
s
Payroll accruals
1 798
1 653
Onerous
contra
cts
-
current liabilities
388
488
Other current grant
liabilit
ies
Other current liabilities
2 338
1 317
Total Other current
liabilities
Total Trade p
ayables and o
ther current liab
ilities
Trade payable
s are non
-
bearing li
abilities and are nor
mally sett
led on a 90
-
day terms. Their
increase is mai
nly attributa
ble to monthly
effect i
n the timing of t
he expenses and t
he related paym
ents.

Other current
liabilities
As of Decemb
er 31, 2021,
the
in
creas
e on soci
al securit
y and payroll
accruals
€0.2 milli
on compar
ed to
December 31,
2020 is mainly r
elated to empl
oyee moveme
nts in 2021.
As of December
31, 2020, the Gr
oup recorded a pr
ovision f
or onerous c
ontracts in o
rder to cover
contractual ob
ligations
, mainly
on clinical a
ctivities f
ollow
-
up and s
tudies clos
ing costs,
after the Group’s
decision to dis
continue th
e developme
nt of fir
st
-
generat
ion, autologo
us CAR T cand
idate CYAD
-
01. As of
December 31,
2021, the rem
aining provi
sion record
ed to cover f
or contract
ual obligati
ons throu
gh 2022
reaches an amount
of €0.4 millio
n.
The other non
-
current liab
ilities att
ached to grant
s is mai
nly explaine
d by the exces
s of cash proc
eeds
compared to
the eligible
expenses subsi
dized by the c
onventi
on numbered
8087 (CYAD
-
DEPLETHINK), 8436 (CYAD
-
211 Immunicy)
and 8516 (n
ew engager
s) recogniz
ed in 2021 for
€1.1
The decrease
compared to year
-
end 2020 is
mainly relate
d to the convent
ion 8436 due to elig
ible expens
es
subsidized by t
he
conventi
on recogniz
ed in 2021.
Other current
liabilities i
ncrease of €1.0 m
illion mainly exp
lained by an accr
ual of €0.8 million f
or the
reimburseme
nt of R&D tax cr
edit related to
tax audit on fi
scal year 201
5. In 2020, a
n accrual had b
een
established t
o cover for
a €1.0 million r
eimbursem
ent of R&D tax
credit relat
ed to an as
sessment res
ulting
from an audit
of fiscal y
ears 2013
and 2014.
he reimburse
ment will b
e required thr
ough the f
irst quart
er of
2022
even tho
ugh the
mana
gement plans
to appeal the a
No discountin
g was perf
ormed to the ext
ent that
the amounts
do not present
payments t
erms longer t
han
one year at the
end of each financ
ial year pr
esented.
The table below anal
yses the Gr
oup’s non
-
ve financial
liabiliti
es into relevant
maturity group
ings
based on the r
emaining p
eriod at the st
atement of f
inancial
position dat
e to the cont
ractual mat
urity dat
e.
The amounts
disclosed in t
he table ar
e the contrac
tual und
iscounted c
ash flows, ex
cept for
repayable wh
ich are prese
nted at amor
tized cos
t. Continge
nt considerat
ion liabil
ity has not
been disclos
ed
in the table b
elow, becaus
e as of stat
ement of financ
ial posit
ion date, it d
oes not meet
the defini
tion of a
contractual obl
igation.
Commitment
s relating to cont
ingent consi
deration ar
e detailed in the dis
closure not
e
Financial liab
ilities rep
orted as at
December 31, 202
1:
Lease liabilities (undiscounted)
Advances repayable
6 213
1 356
4 495
Total fin
ancial liabilit
ies

Financial liab
ilities rep
orted as at
December 31,
Lease liabilities (undiscounted)
Total fin
ancial liabilit
ies
5.19.2.
Changes in li
abilities ari
sing from f
inancing act
ivities
The change in bank l
oans balances
is detailed as f
ollows:
BANK LOANS FINAN
CIAL LIABILITY
ROLL FORWARD
Openi
ng bal
ance at J
anuar
y 1,
Closi
ng bal
ance at
Decemb
er 31,
The change in leas
e liabilit
y balances is d
etailed as f
ollows:
LEASES FINANCIAL
LIABILITY R
OLL FORWARD
Opening balance at January 1,
New leases
are mainly r
elated to new l
eased comp
any cars.
The change in rec
overable ca
sh advance lia
bility bala
nces is detail
ed as follows:
Opening balance at January 1,
Closi
ng bal
ance at
Decemb
er 31,
6 213
4 590
The RCAs are init
ially recogn
ized as a fina
ncial liabi
lity at fair v
alue, calcu
lated based on
present value
of
future repaym
ent of grants (
using initi
al effect
ive discount r
ates rangin
g between 0% an
d 7% for the f
ixed
part and betwe
en 13% to 25% for
the variable part,
depending on RC
As list
ed in note 5.16), det
ermined as
per IFRS 9. The b
enefit (RC
A grant compo
nent) consis
ting in the dif
ference bet
ween the cash r
eceive
d
(RCA proceeds
) and the fina
ncial liabil
ity’s fair val
ue (RCA liabilit
y component
) is treate
d as a governm
ent
grant in accord
ance with IA
S 20.
The RCAs liabi
lity compone
nt (RCA fina
ncial liabilit
y) is subs
equently meas
ured at amor
tized cost
using the
cumulative cat
ch
-
up appr
oach under wh
ich the carry
ing amount of
the liabil
ity is adjust
ed to the pres
ent
value of the future es
timated cash f
lows (future est
imated cash fl
ow are measured by
the management
using
same key assum
ptions than fo
r the impairm
ent testi
ng in note 5.6.2).
The resulti
ng adjustment
is recogniz
ed
within profit
or loss (note 5.

The change in t
he recoverable c
ash advances l
iability at t
he statement of f
inancial posit
ion date main
ly
reflects both t
he new grants r
eceived in curre
nt year as well as t
he remeasurem
ent of the liabil
ity at amort
ized
cost, based on
the Group’s up
dated business
plan and sales
forecast f
or its CAR
T product cand
idates. See
disclosure n
ote 5.28. The year
-
end balance als
o captures
the repaym
ents of contract
ual turnov
er
independent l
ump sums to t
he Walloon Regi
on (relating to
C
-
Cath
ez
5.20.1.
Financial
instruments not repor
ted at fair value
on
statemen
t of financi
al positio
n
The carrying and f
air values of f
inancial inst
ruments that ar
e not reported
at fair value in
the consolidat
ed
financial stat
ements were as
follows for t
he current an
d comparativ
e periods:
Financial Asse
ts (‘Amortized cost’ cat
egory) within:
Non
-
current Trade receivables
Trade receivables and other current assets
Cash and cash equivalents
30 018
17 234
For the above
mentioned fi
nancial ass
ets, the carry
ing amount rep
orted as per D
ecember 31,
202
reasonable a
pproximati
on of their fai
r value.
Financial Liabi
lities (‘Financi
al liabilities at amor
tized cost’ category
) within:
For the above
mentioned fi
nancial lia
bilities,
the carryin
g amount repor
ted as per Dec
ember 31,
2021 is a
reasonable a
pproximati
on of their fai
r value.
5.20.2.
Financial
instruments rep
orted at fai
r value on stat
ement of fin
ancial posit
ion
Contingent c
onsideration an
d other financ
ial liabiliti
es are reported at
fair value in the statem
ent of financia
l
position using
Level 3 fair v
alue measureme
nts for which t
he Group dev
eloped unobserv
able input
s.
Contingent consideration and other financial liabilities
After initial r
ecognition,
contingent c
onsidera
tion liabilit
ies are re
-
m
easured at f
air value with c
hanges in f
air
value recogniz
ed in profit
or loss in acc
ordance wit
h IFRS 3. T
he calculat
ions use cash f
low projecti
ons
based on busines
s plan ending i
n 2040 based on prob
ability of
success of CYAD
-
0
2 and CYAD
-
101 pr
oduct
candidates (
eligible for mi
lestone paym
ents to Dartmout
h and Celdara as dis
closed with
in note 5.34.1)
as
well as extrap
olations of pro
jected cash f
lows result
ing from the f
uture expecte
d sale
s associated
with

The change in t
he balance is detai
led as foll
ows:
Opening balance Con
tingent considerat
ion at January
Closing bal
ance Contingent
consideration
at December 3
1,
The contingent
considerat
ion and other
financial l
iabiliti
es refer to t
he acquisitio
n of the G
roup’s immu
no
-
oncology pl
atform and corr
esponds to th
e fair valu
e of the pot
ential futur
e payments
due to Celd
ara Medical,
LLC and
Dartmouth C
ollege.
The liabilit
y evolution r
eflects
the development
of the G
roup’s produ
ct
candidates us
ing CAR T techno
logy and thei
r progress tow
ards market appr
oval in bot
h autologous a
nd
allogeneic pr
ograms, as wel
l as the update of
its underlying
business
plans and reve
nue forecast
.
There has not bee
n any change in va
luation t
echnique in 20
21 compare
d to 2020. The val
uation is pre
pared
by the Finance Team
on a quarterly basis
and reviewed by the M
anagement. The Mana
gement’s k
ey
assumptions a
bout project
ed cash flows
when deter
mining fair
value less cos
ts to sell are t
he same key
assumptions t
han for impa
irment test
ing purposes (
see note 5.
6.2).
Management’s
key assumpt
ions (assum
ptions t
o which the unit
’s or group
of units’, rec
overable am
ount is
most
sensitive) about
projecte
d cash flows when d
eterminin
g fair value les
s costs to s
ell are the same ke
y
assumptions
for i
mpairment
testing purpos
es (see note 5.
6.2):
The Management
has determine
d that the Weighted Av
erage Cost of
Capital (WA
CC) is the most
appropriate r
ate to use as it
represent
s the risk as
sociated wit
h both equity a
nd the debt. Co
ntingent
considerati
on is a liability an
d thus the discount rat
e should repres
ent debt features,
but the
“contingent” n
ature of t
he liabili
ty has similar
features as
equity,
return is not guar
anteed an
d
thus equity ri
sk should be con
sidered as w
ell. Managem
ent estimat
ed the discount
rate (WA
CC)
as of December 31,
2021 to be 13.4% (
14.8% as of
December 31,
2020) based on f
ollowing
components: t
he US Governm
ent Treasury
bill 20
-
Y, the Group’s
Beta, the equity M
arket Risk
Premium and t
he small fir
m/illiquidit
y premiu
m. The decrea
se of the WAC
C is mainly
driven by
a
decrease of the B
eta of the Group whic
h is associat
ed with the vol
atility of
the Group’s equit
y
influenced by i
ts ongoing clini
cal programs
and overall com
petitive landsc
ape within t
he immuno
-
oncology field.
Manageme
nt corroborat
es its esti
mation with
industry stan
dards for biot
echnology
companies, th
e WACC use
d by Equity R
esearc
h companies
following t
he Group an
d trans
that have been s
ourced by the Gr
oup over the past
24 months.
Management e
stimated the
projecte
d revenue (us
ing cash fl
ow projecti
ons ending in
2040) base
d
on the followin
g component
s: total mar
ket and market sh
are, time
, t
reatment price a
nd
terminal val
ue. Manageme
nt based its
estimation of
projec
ted revenue a
nd related c
omponents
with the Group’
s business plan,
industry dat
a for biotechn
ology compa
nies, evoluti
on of similar
R&D program
s, comparable
prices, expe
cted patent ex
piration perio
d. The weight
of this
assumption is
partially al
leviat
ed by the probabil
ity of succe
ss (PoS) pres
ented hereu
nder.
•
Probabilities of Success (PoS)
Management
estimated th
e PoS based
on Clinical
Developme
nt Success
Rates obse
rved by
indepe
ndent
business intell
igence consu
lting compa
nies for hematolo
gical and solid t
umor
diseases. Prob
ability of
the Group’s pro
duct candidat
es reachin
g the market used w
ere update
d
compared to
end based on m
ost recent Clinic
al Developm
ent Success Rat
es observed
by independen
t business int
elligenc
e consulting c
ompanies
for hematologic
al and solid
tumor

o
Proba
bilities of
Success as of Dec
ember 31, 202
1:
Phase I to
Phase II to
Phase III to
BLA to
o
Proba
bilities of
Success as of Dec
ember 31, 202
0:
Phase I to
Phase II to
Phase III to
BLA to
The PoS estim
ates used by m
anagement a
s of December
31, 2020 utiliz
ed clinic
al developm
ent
success rates
compiled by i
ndependent b
usiness int
elligenc
e consultin
g companies w
hich sourced
data from clinic
al development
programs fr
om 2006
–
2015. The Group’
s updated PoS r
ates for its
clinical progr
ams as of Dec
ember 31, 202
1 incorpor
ates data for c
linical dev
elopment
success
rates from 20
11
–
2020, which the Grou
p believes is a m
ore accurate ref
lection of c
linical
development s
uccess rates
across st
age of development
and in aggregat
e.
As of December
31, 2020, the cha
nge in fair val
ue of the contin
gent consider
ation and other
financi
al
liabilities was mainly
driv
en by update
d assumptio
ns associat
ed with the ti
ming of the pot
ential
commercializ
ation of th
e Group’s aut
ologous
CYAD
-
02 CAR T program for r/r AML/MDS
which
had been
The liabilit
y decrease at Dec
ember 31, 20
21 is mainly
due to:
•
The update of the assum
ptions ass
ociated with t
he timing of the potential c
ommercializat
ion of the
Group’s allo
genic CYAD
-
101
CAR T progra
m for mCRC which h
as been delay
ed by one year;
•
The update of the as
sumptions associ
ated with t
he timing, develo
pment and the
potential
commercializ
ation of the Gr
oup’s auto
logous CYAD
-
02 CAR T program for r/r AML/MDS to reflect
the future devel
opment of the progr
am through pot
ential pa
rtnership, whic
h has been delayed by
•
The update in W
ACC used for f
air value measur
ement purpos
es at Decem
ber 31, 2021;
•
The revaluatio
n of the U.S. dol
lar against t
he Euro; an
d
•
The updated ass
umptions on
Probability of
Success (PoS)
associated wi
th the Group’s CAR T
The conting
ent consider
ation liab
ility captur
es the comm
itment
s disclose
d under not
e 5.34.1. It
does not
include any am
ount for conti
ngent cons
ideration pay
able relat
ing to any sub
-
li
censing a
greements ent
ered
into or to be en
tered into by th
e Group for the
reasons that:
•
Any
c
ontingent cons
ideration pay
able would be du
e only when the G
roup earns reve
nue from suc
h
sub
-
licensing
agreement
s, and in an amou
nt represent
ing a frac
tion of that revenu
e; and
•
The
dev
elopment
of the under
lying product
candidates
by the sub
-
l
icensees is
not under the
Group’s contr
ol, making a rel
iable estim
ate of any futur
e liabilit
y impossible.

Contingent c
onsideration l
iabilit
y sensitivity
analysis
A sensitivity an
alysis has bee
n performed o
n the key assumpt
ions drivin
g the fair value
of the continge
nt
considerati
on liability.
The key assumpt
ions are i) the dis
count rate (W
ACC), ii) the project
ed revenue and
iii) the proba
bilities of
success (P
oS) for the Gr
oup’s product
candidates to get
12.0%
12.7%
13.4%
14.0%
14.
7%
Cont. consideration (€ million)
95.0%
97.5%
100.0
%
102
.5%
105.0%
Cont. consideration (€ million)
In order to assess
the sensitivi
ty to this driv
er, the Group app
lies here an incr
emental pr
obability f
actor to
the bottom
-
li
ne cumulativ
e PoS disclos
ed below:
Cont. consideration (€ million)
On February 28,
2022, the Gr
oup announce
d its decisio
n to voluntar
il
y pause our Phas
e 1b KEYNO
TE
trial evaluatin
g CYAD
-
101 adm
inistered con
currently with
FOLFOX chemot
herapy follo
wed by
PD-
1 therapy, KEY
TRUDA® (pembrol
izumab) in pat
ients with ref
ractory met
astatic colorec
tal cancer
following rep
orts of t
wo fatalities t
hat presented wit
h similar
pulmonary f
indings. The G
roup is curr
ently
investigatin
g these rep
orts and eval
uating any sim
ilar event
s in addition
al patients t
reated on study
.
On
March 1, 2022, t
he Group was informed v
ia
-
email commun
ication fr
om t
B79 trial
has been plac
ed on clinica
l hold due t
o insuffi
cient inform
ation to asses
s risk to s
tudy subject
s (see n
ote
5.36).
G
iven the unc
ertain im
pact of this
event on th
e future of KE
YNOTE
, t
he
is not
a
ble to ass
ess the impa
ct of such out
comes on the v
aluation
of relate
d assets and
continge
nt liabili
ties
and, therefor
e, has not adjust
ed the relate
d fair value c
alculations
for the clinic
al hold.
The Group report
s income tax
es in the incom
e
statement
as detailed b
elow:
INCOME TAX EXPENSE IN PROFIT OR LOSS
For the year ended December
31,
Current tax (expense) / income
Total
income tax e
xpense in p
rofit or loss
The Group has
a history of los
ses.
The followin
g table shows the
reconciliatio
n between the ef
fective and t
heoretical inc
ome tax at the nomi
nal
Belgian incom
e tax rate of 25
.00% for the ye
ar
s
2021 an
d 2020:

EFFECTIVE INCOME T
AX RECONCILIATION
For the year ended December
31,
1
T
he
difference in foreign tax
rate in the
to the Belgian rate (25.00%) is not di
stinctively disclose
d
in this table due to non-material
ity of the operations of the Group’s s
ubsidiary Celyad Inc.
As having not
yet reached t
he commer
cializ
ation step, t
he Group acc
umulates tax
losses t
hat are carri
ed
forward indef
initely for
offset aga
inst future
taxable pr
ofits of the G
roup. Sign
ificant uncer
tainty ex
ists
however surr
ounding t
he Group’s a
bility to r
ealize tax
able profits i
n a forese
eable
fut
ure. Theref
ore, t
he
Group has not rec
ognized any
net deferred t
ax assets in its s
tatements of
financial posi
tion.
Deferred tax as
sets and liabi
lities are deta
iled below by nat
ure of tempor
ary differenc
es for the curr
ent year:
DEFERRED TAX ASS
ETS AND L
IABILITIES,
PER TAX BASES
Recov
erab
le cas
h advanc
es li
abili
ty
Contingent consideration
liability
Employee Benefits liability
Other temporary difference
Unrecognized Gross Deferred Tax assets/(l
i
abilities)
Netting by tax entity
3 295
Unrecog
nized Net Deferre
d Tax assets/(lia
bilities)
Deferred tax as
sets and liabi
lities are deta
iled bel
ow by nature of t
emporary diff
erences for t
he prior yea
r:
DEFERRED TAX ASS
ETS AND LIABILI
TIES, PER TAX BAS
ES
Recov
erab
le cas
h advanc
es li
abili
ty
Contingent consideration liability
Employee Benefits
liability
Other temporary difference
Unrecognized Gross Deferred Tax assets/(l
i
abilities)
Netting by tax entity
(2 174)
2 174
Unrecog
nized Net Deferre
d Tax
The Group’s m
ain deduct
ible tax bas
e relates
to tax losses c
arried for
ward, which hav
e indef
inite term und
er
both BE and US t
ax regimes app
licable to it
s subsidiari
es.

The remaining
temporary d
ifferences
refer to dif
ferences b
etween IFRS a
ccounting p
olicies
and local t
ax
The Group has not r
ecognized any
net deferre
d tax asset on it
s statements
of financial p
osition, for
the same
reason as expl
ained above (u
ncertaint
y relating to t
axable prof
its in a foreseea
ble future)
.
The change in t
he Group’s net
deferred tax a
sset balance is
detailed belo
w:
UNRECOGNIZED D
EFERRED TAX ASSET
BALANCE ROLL
FORWARD
Openi
ng bal
ance at J
anuar
y 1,
Temporary difference creation or
Change in US tax rate applicable
The net increa
se in the balan
ce mainly rel
ates to the add
itional los
ses report
ed for the cur
rent year.
As of December
31, 2021, the Gr
oup has a total acc
umulated tax
losses of €290.
3 million
, which
unrecognize
d deferred tax
assets, not
subject to ex
piration
.
payment
Other equity
reserve from
Currency
Balance as at January 1, 20
Currency Translation differences subsidiaries
Balance as at December 31, 20
Currency Translation differences subsidiaries
Balance as at December 31, 202
The
amount of €16
has been ac
counted for
as other reser
ves followi
ng the conv
ersion of the l
oans
E, F, G and H on May
31, 2013, as
a legacy IF
RS adjustme
nt on fully set
tled contr
ibution
kind conver
tible
The Group’s l
icense an
d collaborati
on agree
ments have ge
nerated no r
evenue for t
he year ende
d December
31, 2021 simil
ar to the year ended Dec
ember 31, 202
0. The Group did
not enter into
any new
license
agreements for
the 12
-
mont
h period ended Dec
ember 31, 202
1.
The Group does not ex
pect to generate m
aterial reve
nue unless and u
ntil the Group re
ceives regulat
ory
approval for o
ne of its drug pr
oduct candi
dates.

5.24
Research and Development expenses
The
foll
owing tabl
e is a summ
ary of manufac
turing exp
enses, clini
cal, qual
ity and regu
latory expe
nses and
other research
and develop
ment expenses
, which are aggr
egated and prese
nted as researc
h and
development e
xpenses in the
Group’s cons
olidated fina
ncial st
For the year ended December
31,
Process development and scale
-
IP filing and maintenance fees
Research and dev
elopment e
xpenses totale
d €20.8 millio
n for the year ended Dec
ember 31, 2021,
which
represents a d
ecrease of 3%
compared to 2
020. The Grou
p’s R&D inter
nal reso
urces are al
located to t
he
continuous d
evelopment
of its i
mmuno
-
oncolo
gy platfor
m mainly
in allogenic sett
ing with it
s produc
ts
candidate CY
AD
-
101, CYA
D
-
211 and pr
eclinical
program
s (such as CYAD
-
203). The d
ecrease in t
he
Group’s R&D e
xpenses is pri
marily driv
en by:
•
employee
expenses mai
nly relate
d to movement
of employees
through
the year
ended Decemb
er 31,
2021 to supp
ort the Group
’s preclinic
al and clini
cal programs
•
The increase of pr
eclinical ac
tivities asso
ciated with th
e CYAD
NKG2D) and ot
her next
-
gener
ation CAR T
candidates, com
pensated by;
•
The decreas
e of process
development
and clinic
al develo
pment after th
e Group’s d
ecision in Q
4
2020 to discont
inue the develo
pment of firs
t
-
generati
on, autolog
ous CAR T candidat
e CYAD
-
•
The decrease
of process devel
opment as
sociated to t
he transiti
on from pr
ecl
development o
f the CYAD
-
21
1 program; and
•
The decrease of t
he expenses ass
ociated with the s
hare
related to the war
rants plan
offered to
employees,
managers and d
irectors
.
5.25
General and
A
dministrative expenses
For the year ended December
31,
Communication & Marketing

General and
A
dmi
nistrativ
e expenses incr
eased by €0.
6
million over t
he year ended Decem
ber 31, 202
which repres
ents an incre
ase of
6.4
% com
pared to 20
increase in in
surances cos
ts
principally)
and consult
ing fees
as
sociated wi
th legal, recr
uitment and ca
pital rais
e opportunit
ies
hav
e been
partially
compensat
ed by
decrease of t
he expenses assoc
iated with the shar
e
-
-
cash expenses
) related to t
he warrants p
lan offered to
employ
ees, manager
s
and dire
ctors
5.26
Depreciation and amortization
(€'000)
For the year ended December
31,
Depreciation of property, plant and eq
uipm
ent
Amortization of intangible assets
Total deprecia
tion and amortization
The amortizat
ion expe
nses decreas
ed compar
ed to the y
ear 2020 mai
nly due t
o end of deprec
iation of
tangible asset
s. The deprecia
tion of propert
y, plant and equi
pment are mainly dr
iven by the amor
tization
expenses relat
ing to right
use of leased as
sets. See disc
losure notes
5.2.28 and 5.
30.
5.27
Employee benefit expenses
For the year ended December
31,
Executive Management team compensation
Hospital
ization insu
rance
Total Employee expenses
5 215
14 727
Total employe
e expenses inc
reased in 2021 c
ompared to 2020. Sal
aries, wages and f
ees expenses s
how
a net increas
e year
year, whic
h reflects
the organi
c growth of th
e Group, in
line with a t
otal staf
f
headcount incr
eased by 10.6
% at Decembe
r 31, 2021
.
For the year ended December
31,
General and administrative staff
5.28
Change in fair value of contingent consideration, other income and other
Change in fair
value of conti
ngent consid
eration
For the year ended December
31,
Change in fair value of contingent consideration
Total Change in fair val
ue of contingent consid
eration

The fair value adjus
tment (€0.
8 million, non
expenses) relat
ing to reassessm
ent as of December
31,
2021 required
by Internation
al Financial Rep
orting Stand
ards (IFR
S) of the contingent cons
ideration a
nd
other financi
al liabilit
ies associat
ed with the adv
ancement i
n the Company
’s NKG2D
-
b
ased CAR T
can
didates,
is mainly driv
en by:
•
The update of the assum
ptions ass
ociated with t
he timing of the potential c
ommercializat
ion of the
Group’s allo
genic CYAD
-
101
CAR T progra
m for mCRC which h
as been delay
ed by one year;
•
The update of the as
sumptions associ
ated
with the ti
ming, develop
ment and the pot
ential
commercializ
ation of the Gr
oup’s auto
logous CYAD
-
02 CAR T program for r/r AML/MDS to reflect
the future devel
opment of the progr
am through pot
ential pa
rtnership, whic
h has been delayed by
•
The update
in
WACC used for
fair value measur
ement purpos
es at Decem
ber 31, 2021;
•
The revaluatio
n of the U.S. dol
lar against t
he Euro; an
d
•
The updated ass
umptions on
Probability of
Success (PoS)
associated wi
th the Group’s CAR T
As of December
31, 2020, the cha
nge in fair val
ue of the contin
gent consider
ation and other
financi
al
liabilities w
as mainly dri
ven by update
d assumptio
ns associat
ed with the t
iming of t
he potential
commercializ
ation of
Group’
s autologo
us CYAD
-
02 CAR T program for r/r AML/MDS
wh
ich
had been
(€'000)
For the year ended December 31,
Gain on sales of Property, plant
& equipment
Other income i
s mainly relate
d to:
•
Grant income (
RCAs): additi
onal grant inc
ome has been rec
ognized in 2021 o
n grants in t
he form
of recoverable
cash advanc
es (RCAs) for c
ontracts num
bered 8087,
8088, 8212, 843
6 and
1910028. Acco
rding to IF
RS standards
, the Comp
any has recog
nized gra
nt income for
the period
amounting t
o €2.7 millio
n and a liabi
lity com
ponent of €1.
6 million i
s accounted f
or as a
financial
liability (s
ee disclosur
e notes
5.16 and 5.19
.2). The incr
ease compar
ed to December
31, 2020 i
s
mainly associa
ted with additi
onal grant inco
me recognized
on new conventions
signed durin
g the
l
ast quarter of
2020 (contract
s numbered
8212 and 843
6) and on conv
ention number
ed 191002
8,
partly compe
nsated by t
he decreas
e on grant inc
ome recogn
ized on co
nvention
associated t
o
autologous pro
grams (contr
act numbere
d 7685, 8087 and 8
088);
•
Grant income (O
thers): additi
onal grant inco
me has been recog
nized in 2021 on gr
ants receive
d
from the Feder
al Belgian Ins
titute f
or Health Insur
ance Inami (
€0.3 million)
and from the r
egional
government (c
ontracts num
bered 806
6 and 8516 for
€1.1 million)
, not refer
ring to RCAs
and not
subject to reim
bursement
. The increase
compare
d to December
31, 2020 is m
ainly due t
o grant
income recogni
zed on new convent
ion signed in t
he last quarter
of 2021 with the r
egional
government (c
ontract numb
ered 8516);

•
the remeasure
ment income o
n the recover
able cash adv
ances (RCAs)
of €0.9 millio
n for the yea
r
2020, which w
as mainly re
lated to th
e Group decisi
on to updat
e assumpti
ons associ
ated with th
e
timing of the potent
ial commerci
alization of
the Group’s autolo
gous AML/MDS
CAR T progr
while the
on the recov
erable cash a
dvances (
RCAs) is an exp
ense for the y
ear
ended Decemb
er 31, 2021; and
•
with respect to R&
D tax credit,
the current year inc
ome is predic
ated on a R&D tax credit
recorded
(€0.7 million),
which has been up
date
d taking into
account all i
nformation
available at
this date a
nd
is in line with p
revious year.
For the year ended December
31,
Clinical Development milestone payment
Loss on disposals of Property, plant &
equipment
For the year ended D
ecember
31,
2021, ot
her expenses m
ainly refer t
o:
•
the remeasure
ment income o
n the recover
able cash adv
ances (RCAs)
of €0.3 millio
n for the yea
r
2021, which is
mainly relate
d to the time accr
etion (which ref
lects
the developme
nt of the Group’
s
product candi
dates using CA
R T technolog
y and their pro
gress towar
ds market approv
al in both
autologous an
d allogeneic pr
ograms) and th
e revaluatio
n of the U.S. dolla
r against the Eur
o, refer
to disclosure n
ote 5.16; an
d
•
the other exp
enses are mai
nly associ
ated with t
he amendm
ent fees on lic
ense agreem
ent with
Dartmouth si
gned in Decemb
er 2021 for €1.
1 million (se
e note 5.34.1).
For the year en
ded December
31,
2020, ot
her expenses
mainly
for (€0.1 mill
ion) paid to D
artmouth aft
er that the Gr
oup success
fully dose
d
the
first patient with CY
AD
-
02 in
CYCLE
-
1 trial for
r/r AML and MDS t
reatment.
5.29
Non
-
recurring operating income and expenses
Non
-
recurri
ng operating inco
me and expens
es are defined as
one
-
off items, not
directly r
elated to the
operational act
ivities of
the Group. No operat
ions qualify for
such a presentatio
n for the years 202
Amounts recog
nized in the co
nsolidated s
tatements of
financial
“Property, pl
ant and equi
pment” compr
ise owne
d and leased ass
ets that do not
meet the defi
nition of
Property, Plant and Equipment owned (excluding righ
t

Total Property,
Plant and Equipment
The statement of
financial pos
ition shows
the followi
ng amounts r
elating to leas
es for whi
ch the Group is a
At
1 January 2020
2 810
1 564
4 737
At 31 December 2020
3 001
1 491
4 920
At 31 December 2021
3 025
4 020
At 31 December 2021
(1 281)
(1 805)
Accumulated depreciation
(
1 916)
At 31 December 2020
2 174
3 004
Accumulated depreciation
(1 281)
(
1 805)
At 31 December 2021
1 744
2 215
Amounts recog
nized in the co
nsolidated s
tatements of
comprehensiv
e loss
The consolidat
ed statement
s of compreh
ensive loss s
how the follow
ing amounts r
elating to leas
es:
(€’000)
For the 12
-
month period
ended Decemb
er 31,
Depreciation charge of right
Interest on lease liabilities (including in Financial expen
se
s)
1
Interest on sublease receivable (including in F
inancial income)
1
Variable lease payments not included in the
me
asurement of lease liabilities
Expenses relating to short
-
term leas
es and le
ases of
low
-
value assets
T
otal expenses related to leases
1
Interests on leases are presente
d as operating cash flow.

Total cash outfl
ows for leas
es
For the 12
-
month period
ended Decemb
er 31,
Total cash outflow for leases
5.31
Finance income and expense
s
(€’000)
For the year ended December
31,
Interest on overdrafts and other finance cos
t
s
Foreign Exchange differences
137
Finance income on the net invest
m
ent in lease
Interest income bank account
Foreign Exchange differences
The net financi
al result
in
c
reased fr
om a net f
inancial loss o
f €0.2 milli
on for the y
ear ended Dec
ember 3
1,
2020 to €0.1 milli
on of net financ
ial loss for t
he year ended December
31,
2021, which is mainly
driven by
the decrease fr
om €0.1 millio
n of loss on foreig
n exchange
differences du
e to the revalu
ation of the USD
through the ye
ar ended Dece
mber 31, 2021 and it
s impact on t
he valuatio
n of the Mesobl
ast receivabl
e.
The loss per share is
calculated by
dividing los
s for the year
by the weight
ed average num
ber of ordinar
y
shares outst
anding during t
he period. A
s the Group is incur
ring net loss
es, outst
anding warrants
have an
anti
-
dilutiv
e effect.
As such, there
is no diffe
rence between
the basic a
nd the dilute
d earnin
gs per share.
In
case the warr
ants woul
d be includ
ed in the c
alculation of
the loss
per share,
this would d
ecrease the
loss
Loss of the year attributable to Equity Holders
Weighted average number of shares o
utstand
ing
15 604 014
13 942 344
5.33
Contingent assets and liabilities
As described i
n note 5.2.5, the G
roup has to reimburs
e certain gov
ernment gr
ants received in t
he form of
recoverable c
ash advances
under certain
conditions. F
or more inform
ation on the pot
ential fina
ncial
consequences
of these explo
itation d
ecisions in t
erms of potent
ial reimbu
rsements and
sales
percentage
fees to be paid
to the Walloon
Region, refer t
o note 5.16.

In 2022 and bey
ond, the Grou
p will have t
o make exploit
ation decis
ions on the rem
aining R
CAs (agreeme
nts
numbered 8087,
8088, 19100
28, 8212, 8436
and 8516).
Background
In January 201
5, the Group
enter
ed into an agre
ement with Cel
dara Medic
al, LLC, or Celdar
a in which
the
Group
purchased al
l outstandi
ng membershi
p interests of
OnCyte, LLC, or O
nCyte. In conn
ection with
this
transaction,
the Group
enter
ed into an ass
et purchase agre
ement to whic
h Celdara sol
d to OnCyte cert
ain
data, protocol
s, regulatory
documents
and intellec
tual propert
y, includi
ng the rights an
d obligati
ons under
two license agr
eements betwe
en OnCyte and T
he Trustees of Dart
mouth College, or D
artmouth, relat
ed to
the Group’s
C
AR T developm
ent programs
.
In March 2018
, the Group
dis
solved the aff
airs of
whol
ly owned subs
idiary O
nCyte. As a result
of the
dissolution of
OnCyte, all the asset
s and liabiliti
es of OnCyte were f
ully distributed to
the Group
license agreem
ent with Dartm
outh.
Amended Asse
t Purchase Agr
eement
In August 2017
, the Group
tered into an a
mendment to t
he asset purch
ase agreement
described
above.
In connection
with the amen
dment, the foll
owing payment
s were mad
e to Celdara: (i)
an amount in c
ash
equal to $10.5 m
illion, (ii) ne
wly issued sha
res of Celyad v
alued at $12.5 m
illion, (iii) a
n amount in cas
h
equal to $6.0 mil
lion in full s
atisfaction of
any payments
owed to Celda
ra in connecti
on with a clinica
l
milestone relat
ed to the Group’s
2 product c
andidate, (iv)
an amount in cash equal t
o $0.6
million in full satisfac
tion of any payment
s owed to Celdara i
n connection wi
th the Group’
s
with Novartis Int
ernational P
harmaceutica
l Ltd., and (v)
an amount in cash equal to $0.9 milli
on in full
satisfaction
of any payment
s owed to Ce
ldara in conn
ection w
ith
t
he Grou
p’s
former licens
e agreement wi
th
Ono Pharmace
utical Co.,
Ltd.
Under the ame
nded asset
purchase agr
eement, t
he Group
obligated to
make certa
in devel
opment
-
milestone pay
ments to Celdar
a up to $40.0 m
illion, certai
n development
-
base
d milestone paym
ents up t
o
$36.5 million
and certa
in sales
-
bas
ed milestone
payments up t
o $156.0 milli
on. The Gr
oup is
make tiered s
ingle
-
dig
it royalty
payments to C
eldara in co
nnect
ion with the s
ales of CAR
-
T produc
ts, subje
ct
to reduction in c
ountries in whi
ch there is no patent
coverage f
or the applicab
le product or in t
he event Celyad
is required to s
ecure licens
es from thir
d parties to com
mercialize t
he applic
able product
. The Grou
p is
required to pay
Celdara a per
centage of s
ublicense i
ncome, inc
luding roy
alty payme
nts, for each s
ublicens
e
ranging from
the mid
-
si
ngle digits
to the mid
twenties, d
epending
on which
of a specifie
d list of c
linical a
nd
regulatory mil
estones t
he applicabl
e product
has achieved a
t the time the s
ublicens
e is executed. T
he Group
is
require
d to pay Celdara a singl
e
-
digit perc
entage of any researc
h and developm
ent funding rec
eived by
us, not to exceed $7.
5 million
for each product
group. The Gr
oup
can opt out of t
he development of any
product if the data does not
meet the
scientific criteria of success.
The Group
may also opt out of
development o
f any product for any
other reason upo
n payment of a terminati
on fee of $2.0 mill
ion to
The Trustees of Dartm
outh College (“Dartmouth”)
As describe
d above, as a r
esult of
he Group’s
acquis
ition of al
l of the out
standing m
embership i
nterest
s of
OnCyte and the as
set purcha
se agreement
among the Gro
up, Celdara an
d OnCyte, O
nCyte became
the
Group’s
wholly
-
owned subsi
diary and acquir
ed certain d
ata, protoco
ls, regulat
ory documen
ts and intel
lectual
property, inc
luding th
e rights and o
bligations
under two li
cense agr
eements bet
ween OnCy
te and Dartmo
uth.
The first of t
hese two license
agreements co
ncerned patent
rights relat
ed, in part,
to methods for t
reating
cancer involving chime
ric NK and NKP30 r
eceptor t
argeted ther
apeutics an
d T cell rec
eptor

compositions i
n treating t
umor, infec
tion, GVHD, t
ransplant
and radiation s
ickness, or t
he CAR
-
T Lic
ense,
and the secon
d of these tw
o license
agreements
concerned p
atent right
s relate
d, in part
, to anti
antibody, fus
ion proteins an
d methods of usi
ng the same, or
the B7H6 License.
In August 2017,
the Group
and Dartm
outh entere
d into an amendment
agreement
in order to combin
e
rights under B7H6 A
greement wi
th
rights under the C
AR
-
T License, res
ulting in the ter
mination of the
B7H6 License,
and in order
to make cert
ain other c
hanges to t
he agreement
. In connec
tion with th
e
amendment,
the Group
ref
undable,
non
-
creditabl
e amendment fe
e in the amoun
t of
$2.0 million in
2017. Under
the amended lic
ense agreem
ent, Dartm
outh granted the G
roup
an exclus
ive,
worldwide, royalt
y
-
bearing lic
ense to cert
ain know
-
how and pat
ent rights t
o make, have m
ade, use,
offer for
sale, sell, im
port and com
mercializ
e any pro
duct or proces
s for human t
herapeutic
s, the manufac
ture,
use
or sale of which, is c
overed by such patent right
s or any platform pr
oduct. Dartmout
h reserves the ri
ght to
use the licens
ed patent righ
ts and license
d know
-
how, i
n the same field, f
or education an
d research
purposes only.
The patent
rights inc
luded in t
he amended l
icense agr
eement also i
nclude t
he patent
s
previously c
overed by t
he B7H6 Lice
nse. In consider
ation for
the rights gr
anted to the
Group
u
nder the
amended lice
nse agreeme
nt, the Group
re
quired to p
ay to Dartmout
h an annual lic
ense fee as w
ell as a
low single
-
di
git royalty bas
ed on annu
al net sales of
the licens
ed produc
ts by the Group,
with certai
n
minimum net s
ales obligat
ions beginn
ing April 30,
2024 an
d continuing f
or each year
of sales t
hereafte
r.
Under the amende
d license agr
eement, in lie
u of royalties pr
eviously pay
able on sales by s
ublicensees,
the
Group
is r
equired to pay
Dartmout
h a percentage
of sublic
ense income,
including roy
alty payments
, (i) for
each product
sublicense ran
ging from t
he mid
-
singl
e digits t
o low
-
singl
e digits, depe
nding on which of
a
specified li
st of clinic
al and regu
latory mile
stones the
applicable pr
oduct has ac
hieved at
the time t
he
sublicense is
executed an
d (ii) for eac
h platform s
ublicense in th
e mid
-
single
digits. Additiona
lly, the
agreement re
quires that
the Group
exploit
s
t
he license
d products
, and the Group
developmenta
l and regul
atory milest
ones. Upon s
uccessful c
ompletion
of such milest
ones, the Gro
up
obligated to
pay to Dart
mouth cer
tain clinic
al and reg
ulatory mil
estone pay
ments up to a
n aggregat
e amount
of $1.5 million and a com
mercial miles
tone payme
nt in the amount of $4.
0 million. The Gr
oup is
for all expenses in connec
tion with the prepar
ation, fili
ng, prosecut
ion and mainten
ance of the pat
ents
covered under
the agreeme
nt.
As further amende
d in December 202
1, this agreem
ent allows Dar
tmouth to term
inate the amende
d license
after April 30, 2
026, extende
d from the prior d
ate of April
0, 2024, in the ev
ent that Cely
ad fails to m
eet the
specified mini
mum net sales obli
gations for any
year (
$
10 milli
on during fir
st year of sales,
$
40 million durin
g
the second yea
r of sales and
$
100 millio
n during th
e third year
of sales an
d every year of
sales th
ereafter)
,
unless Celyad
pays to Dart
mouth the roy
alty Celyad w
ould other
wise be obligat
ed to pay ha
d Celyad
met
such minimum
net sales o
bligation. Dar
tmouth may
also term
inate the li
cense if Ce
lyad fails t
o meet
a
milestone withi
n the specifie
d time period, u
nless
Celyad p
ays the correspon
ding milest
one payment. In
connection wi
th the Decemb
er 2021 amend
ment, the Group
agreed t
o certain prot
ective
provisions of an
y
sublicenses a
nd paid D
artmouth a n
on
-
credita
ble amen
dment fee and
an addition
al non
-
r
-
creditabl
e sublicense f
ee to be paid o
n an annual basis
.
In accordance
with IFRS 3,
these contin
gencies are r
ecognized o
n the statement
of financial
position at
year
-
end, on a r
isk
-
adjusted b
asis.
5.34.2.
Horizon Di
scovery / Perkin
Elmer
In April and J
une 2018, t
he Group
sign
ed two resear
ch and dev
elopment col
laborati
on and lice
nse
agreements w
ith Horizon
Discovery G
roup plc, or
Horizon, to ev
aluate the
utility of H
orizon’s SMA
RT vecto
r
shRNA reagent
s to reduce expr
ession of one or
more defined t
argets in connec
tion with th
e development
of
the Group’s
product can
didates. T
he first agreement
was focused on targ
ets related to
CAR
-
-
02. T
he second a
greement was
focused on t
argets relat
ed to
its
product
candidate CYAD
-
21
1 and one pre
-
clinic
al allogenic
product candid
ate not yet publicly
announced
,
In December 2018,
the Group
exer
cised
it
s
option to conver
t the second agr
eement into an exc
lusive licen
se
agreement, in conn
ection wit
h whic
h
the Grou
p
paid Horizo
n an up
-
front payment
of $1 million. I
n September

2019,
exercised
option t
o convert the f
irst agreem
ent into an
exclusive lic
ense agreem
ent, in
connection wit
h which the Group has pa
id Horizon an up
front payment of
$0.1 million and an addit
ional
milestone of $0.
1 million for the fi
rst IND filed by
us for CYAD
-
02. In Sept
ember 2020, the G
roup
additional mil
estone of $0.
2 million for
the first
IND filed by t
he Group
211.
Under these exclus
ive license agr
eements combi
ned, Horizon is
eligible t
o receive additional m
ileston
e
payments in
developme
nt, regulat
ory and com
mercial mil
estone paym
ents, in a
ddition to l
ow single digi
t
royalties on n
et sales, subj
ect to customar
y reductions.
In December 2
020, Horizo
n Discovery was acquired by PerkinElmer, Inc. (Horizon/PKI).
In 2021, Horizon/
PKI informed
the Group
they believe t
he Group
in material breac
h of these agreem
ents
as a result of cert
ain disclos
ures the Group h
as made in con
nection with
obli
gations as a publi
cly trade
d
company in the Unit
ed States and Belgium,
although they
have not formall
y delivered to the Gr
oup
a notic
e
of material brea
ch or termin
ation. T
he Group
b
elieve
s
any suc
h assertion of
material breac
h would be wit
hout
merit and
wo
uld expect
to vigoro
usly defend an
y such notic
e of material
breach. Any dis
pute
under these agreem
ents would be subj
ect to arbitr
ation in The Hague un
der the Interna
tional Chambe
r of
Commerce Rul
es.
T
he Group
current
ly in discussio
ns with Horizon a
bout possi
ble amendments
to these
agreements in
connection wi
th which
would ret
ain freedom t
o operate under t
he in
-
Of note,
the Group has filed
patent ap
plications
which, if iss
ued, woul
d cover other
aspects of t
he produc
t
candidates des
cribed abov
e as well as pro
ducts devel
oped by third par
ties that deploy
similar tec
hnology
and targets.
These patent
applic
ations encom
pass the do
wnregulat
ion of one or
more of
the targets
covered
under the Horiz
on/PKI agreem
ents, the use of shRN
A to downregulat
e such targets
in immune cells a
nd the
combination of
shRNAs with a chi
meric anti
gen receptor in
immune cells.
The Group
also develop
ing a
second genera
tion shRNA
platf
orm that does not inc
orporate any of t
he Horizon Discov
ery/Perkin Elm
er,
Inc. technol
ogy described a
bove.
The Group’s le
ad allogeneic
CAR T product c
andidate, CY
AD
-
101, does
not incorporate
any of the Horiz
on
Discovery/Perkin Elmer, Inc. technology
In 2021, the Gr
oup signed tw
o license agr
eements. Und
er these lice
nse agreement
s, the lic
ensors are
eligible to rec
eive additio
nal milesto
ne payment
s in developme
nt, regulat
ory and comm
ercial milest
one
payments, in addit
ion to low singl
e digit royalties
on net sales, subjec
t to customary reduc
tions, if t
he Group
decides to cont
inue the expl
oitation of t
hese licenses.
5.35.1.
Remunerati
on of key managemen
t
Key management
consists of t
he members of t
he Executive Comm
ittee and t
he entities cont
rolled by any o
f
Number of Executive Committee
(€’000)
For th
e year en
ded 31 D
ecemb
er
Short term employee benefits
[1]

Other employment costs
[2]
Executive Committee outstanding fees
payables (in ‘000€)
(1) Include sal
aries, soci
al security
, bonuses,
lunch vouchers
Number of warrants granted
Number of warrants lapsed
(30 000)
(20 000)
Cumulative outstanding warrants
5.35.2.
Transactio
ns with n
on
-
executi
ve direc
For th
e year en
ded 31 D
ecemb
er,
Non
-
executi
ve directors
ou
t
standing
fees payables (in ‘000€
)
Number of warrants granted
Number of warrants lapsed
30 000
Number of exercised warrants
Cumulative outstanding warrants
5.35.3.
Transactio
ns with
shareholders
There were no t
ransactions
with the Group’s
sharehol
ders, for 202
1
or 20
5.36
Events after the close of the fiscal year
On January 17, 2022,
the Company
enter
ed into an amend
ment with Mesobl
ast to convert
the license int
o
non
-
exclusiv
e
whereby the Compa
ny agreed
, (a)
to
s
ettle $2,500,000 of r
eceivable as of Decem
ber 31, 202
1
with $
1,500,00
0 and; (b)
extend certa
in miles
tone payment
s. The consi
deration of $1,
500,000
was agree
d
to be paid by
Mesoblast
in Mesob
last ordina
ry shares
and the d
ifferenc
e $1,000,000
will be rec
orded
in the
income statem
ent in 2022
.
On February 28,
2022, the
announc
ed its decisi
on to voluntar
il
y pause our Ph
ase 1b KEYNOT
E
-
B79 trial evalu
ating CYAD
-
10
1 administere
d concurre
ntly with FOLF
OX chemotherapy
followed by
anti
-PD-
1 therapy
, KEYTRU
DA® (pembroli
zumab) in
patients w
ith refra
ctory metas
tatic color
ectal ca
ncer
following rep
orts of two f
atalities that
presented with s
imilar pulm
onary findi
ngs. The
is
current
ly
investigatin
g these rep
orts and eval
uating any sim
ilar event
s in addition
al patients t
reated on study
.
On
March 1, 2022,
the Company
was informed v
ia
-
email c
ommunication f
rom the FDA t
hat the KEY
NOTE
trial has been pl
aced on clin
ical hold due t
o insuffici
ent informat
ion to assess r
isk to study subjec
ts.

There were no ot
her subsequ
ent events that
occur betwe
en 2021 year
-
end and the d
ate when the fina
ncial
statements hav
e been authori
zed by the Boa
rd for issue.
5.37
Statutory accounts as of December 31, 202
1
and 20
This section co
ntains select
ed financial inf
ormation,
consisting of t
he balance sheet, i
ncome statem
ent and
certain notes,
as derived f
rom the st
atutory f
inancial stat
ements of C
elyad Oncol
ogy SA as of
and for the
year ended De
cember 31, 20
2
1
(includin
g comparativ
e informatio
n as of and for the y
ear ended Dec
ember
31, 20
20
). These financ
ial statem
ents were prepar
ed in accordanc
e with the applicabl
e accountin
g
framework in B
elgium and w
ith the lega
l and regul
atory req
uirements ap
plicable to t
he financial s
tatements
in Belgium and are f
iled with the Nat
ional Bank of B
elgium. T
hese statutory
financial st
atements ar
e
approved by the S
hareholders
’ Meeting on M
ay 5, 202
2
and
the statutor
y auditor has iss
ued an unqual
ified
audit opinio
n with respec
t to these stat
utory financi
al statem
ents. The full set
of the stat
utory financ
ial
statements is
available on t
he website of
the National Ba
nk of Belgi
um (
www.nbb.be
).
ASSETS
II. Intangi
ble fixed asset
s
III. Tangib
le fixed assets
Installations machinery and equipment
Leasing and similar rights
138 980
367 923
Fixed assets under construction and ad
vance payments
IV. Finan
cial fixed a
ssets
VI. Stocks and contracts in progres
s
VII. Amounts receivable within one
y
ear
2 392 123
1 771 464
Trade debtors
475 292
422 822
Others amounts receivable
VIII. Amounts receivable more than one ye
ar
5 207 946
5 128 817
X. Cash at bank and in hand
XI. Deferred charges and accrued in
c
ome
965 479
847 868

V. Accumulated profits
(losses)
PROVI
SIONS A
ND DEF
ERRED T
AXES
VII.A. Provisions for liabilities and charges
VIII. Amounts payable after more than
one year
2 046 115
3 023 108
Credit institutions; leasing and other similar obligations
125 178
156 217
IX. Amounts payable within one year
Current portion of amounts payable a
f
ter one year
253 072
516 987
Taxes; remunerations and social security costs
Remunerations and social security costs
X. Accrued charges and deferred inco
me
1 732
Capitalization of development costs
20 343 657
18 444 030
Non recurring operating income
Remuneration; social security and pensions
Depreciation of and other a
mounts written off formations expenses; intan
gibl
e and tangible
(24 570 724)
(22 855 773)
Write
-
downs on inventories, on orders in progress and on
trade receivables (appropriations
Provisions for liabilities and charges (a
ppropriations
Other operating charges (
-)
Non recurring operating expenses
Incom
e from
cur
rent as
sets
Income fro
m financial asse
ts
Other financial income
919 693
120 122
Interest on financial debts
Non
-
recurring financial charges
Profit
(loss) on ordinary activities b
efore taxes (

Profit (Loss) for the period
befor
e taxes (
Profit (loss) for the
period available
for appropriation
Statement of intangibles assets
Acquisition value at the end of
t
he preceding period
190 249 350
171 536 439
Movements during the period
Acquisitions, included produced fixed assets
Sale, transfer and withdraw
Acquisition value at the end of
t
he period
210 787 212
190 249 350
Depreciation and amounts written down at
end of the preceding period
162 262 888
139 984 462
Movements during the period
Sale, transfer and withdraw
Depreciation and amounts written down at
the end of
186 336 521
162 26
2 888
Net bo
ok value at
the end of t
he period
Statement of tangible fixed assets
Acquisition value at the end of
t
he preceding period
Acquisitions, included produced fixed
assets
Acquisition value at the end of
t
he period
Depreciation and amounts written do
wn at end of the preceding
Movements during the period
Depreciation and amounts written down at
end of the period
Net bo
ok value at
the end of t
he period
INSTALLATIONS, M
ACHINERY & EQUI
PMENT
Acquisition value at the end of
t
he preceding period
Movements during the period
Acquisitions, included produced fixed
assets
Sale, transfer and withdraw
Acquisition value at the end of
t
he period
94
5 847
692 095
Depreciation and amounts written do
wn at end of the
preceding
Movements during the period
Sale, transfer and withdraw
Depreciation and amounts written down at
end of the period
Net book
value at t
he end of the per
iod
Acquisition value at the end of
t
he preceding period
Movements during the period
Acquisitions, included produced fixed assets
Sale, transfer and withdraw

Acquisition value at the end of
t
he period
2 069 310
1 189 483
Depreciation and amounts written do
wn at end of the
preceding
Movements during the period
Sale, transfer and withdraw
Depreciation and amounts written down at
end of the period
Net book value at the end of the perio
d
LEASING AND OTHER SIMIL
AR RIGHT
Acquisition value at the end of
t
he preceding period
1 059 405
1 408 421
Movements during the period
Acquisitions, included produced fixed
assets
Sale, transfer and withdraw
-
Acquisition value at the end of
the period Sale, transfer and
Depreciation and amounts written down at
end of the preceding
Movements during the period Recorded
Sale, transfer and withdraw
Depreciation and amounts written down at
end of the period
Net bo
ok value at
the end of t
he period
Installation, machinery & equipment
Furniture and vehicles
20 555
Acquisition value at the end of
t
he preceding period
Movements during the period
Acquisitions, included produced fixed assets
Sale, transfer and withdraw
Acquisition value at the end of
t
he period
1 301 699
1 291 240
Depreciation and amounts written do
wn at end of the preceding
Movements during the period
Sale, transfer and withdraw
Depreciation and amounts written down at
end of the period
848 316
706 992
Net bo
ok value at
the end of t
he period
FIXED
ASSETS UNDER CONSTRUCTION AND ADVAN
CE
Acquisition value at the end of
t
he preceding period
Movements during the period
Acquisitions, included produced fixed assets
Transfers from one heading to ano
t
her
Acquisition value at the end of t
he period
Depreciation and amounts written do
wn at end of the preceding
Movements during the period
Depreciation and amounts written d
own at end of the period
Net bo
ok value at
the end of t
he period
Other inv
estmen
ts and d
eposits
Other Investments and deposits
Acquisition value at the end of
t
he preceding period
Movements during the period

Net bo
ok value at
the end of t
he period
Net book value at the end of the
Statement of capital
2020
Anal
ysis of
amount
s paya
ble af
ter mor
e than o
ne year
Current portion of amounts initially payable a
f
ter more than one year
Amounts payable expiring over one year and
before 5 years
951 935
1 829 013
Amounts payable expiring over five year
Analysis b
y current pos
ition of a
mounts initiall
y payable
after more
Leasing charges and similar
Tax, wa
ge and
socia
l amoun
ts payab
le
Non expired taxes payable
2 261 280
301 073
Remun
erati
on and
social
secur
ity
Different categories of shares
Capital called, but unpaid
Shareholders having yet to pa
y up in full
Authorized un
issued capi
tal
Different categories of shares
Capital called, but unpaid
Shareholders having yet to pa
y up in full
Authorized un
issued capi
tal

Other amounts payable related to rem
unera
tion and social
Operating results
Subsidies and recoverable cash advance received from the Walloon Region
Employees r
ecorded in th
e
personnel register
Total
numbe
r at th
e clos
ing dat
e
Average number of employees cal
c
ulated in full
-
Number of actual worked hours
Remuneration and direct social bene
fits
6 278 525
6 282 555
Employer’s social
security contributions
Employer’s premiums for extra
st
atutory insurances
Other personnel costs (+)/(
Impairment of trade receivables
Provi
sions
for ri
sks an
d charg
es
Taxes related to operations
Other charges
1
152 835
1 056 496
Hired
temp
orary
staff
and p
erson
s plac
ed at
the en
terp
rise’
s di
sposal
Total
numbe
r at th
e clos
ing dat
e
Average number calculated as full
-
Number of actual worked hours
Charges to the enterprise
Interest charges
3 113
5 465
Foreign exchange difference
Income and charge
of exceptional size or incidence
Non
-
recurring operating charges
172
Non
-
recurring financial charges

Accumulated tax losses deductible from
f
uture taxable profits
The total amount of value added tax and taxes borne
b
y third parties
The total amount of value added tax and taxes borne by third parties
The
total am
ount of val
ue added ta
x charged
To the enterprise (deductible)
Amounts retained on be
half of third parties
Payroll withholding taxes
Financial
relationship with Amount of direct and indirect remunerations and pensions,
included in the income statement, as long as this disc
losu
re does not concern
exclusi
vely or m
ainly, t
he situ
ation o
f a sing
le identi
fiabl
e person
Financial relationship with auditors
Auditor’s fees
202 000
200 000
Auditor’s special missions fees
141 788
66 850
Fees for special missions executed by
related parties to the Auditor
5.37.4.
Summary of val
uation rul
es
Valuation rul
es are determined
by the Board of Direc
tors in accorda
nce with the Roy
al Decree of 30 Janua
ry
2001, executi
ng Belgian C
ompany Code and
related to the
annual accou
nts requirement
s for com
panies.
Formation exp
enses are bo
oked as int
angible fixe
d assets and am
ortized over
5 years.
Intangible fix
ed
assets acquir
ed from a th
ird part
y or acquir
ed through a c
ontributi
on in kind ar
e recorded
at the acquis
ition
value. Intang
ible fixed
assets not ac
quired fr
om a third p
arty are va
lued at t
heir cost of
production
in such
a
way that they d
o not exceed a pr
udent estimat
ion of their f
uture economic
al use or their f
uture return.
Intangible as
sets develo
ped internal
ly are capitaliz
ed when pers
pectives of
future retur
n are probabl
e a
nd
clearly identif
ied. Clinic
al developm
ent expens
es are capitali
zed when authoriz
ation to star
t a phase III trial
of the related progr
am is obtained.
Develop
ment expense
s of a medical devic
e are capitaliz
ed when the
These intang
ible fixed asset
s are
in princ
iple
amortiz
ed prorate t
emporis ov
er 5 years star
ting the year
of the first r
evenue gener
ation assoc
iated with t
he related a
sset. Fur
niture and fixt
ures are de
preciated
over
3, 5 or 10 years depe
nding on the eco
nomic life of
th
An impairment
test is perf
ormed each year
at year end on all tan
gible and int
angible a
ssets. Exc
eptional
depreciation or
amortizat
ion expens
es may result fr
om such impairm
ent analysis
.

Financial fix
ed assets are
booked at acqui
sition val
ue. A wri
off is accounted f
or when the f
inancial fix
ed
asset is perma
nently impair
ed. There is no i
nventory.
Direct materi
als purchas
ed are direct
ly expens
ed taken into
account thei
r short lifet
ime. Amount
s receivabl
e
are booked as
asset at nomi
nal value. Am
ounts receiva
ble in for
eign currenci
es are conver
ted in EUR at
the
exchange rat
e at closing date. Negat
ive exchange dif
ferences res
ulting from t
he conversion in EUR at t
he
exchange rate at
closing date
are expensed; pos
itive excha
nge difference
s are accounted
for as deferred
income. Amou
nts receiv
able are wr
itten
-
off
when their rea
lizable va
lue is est
imated to b
e lower than t
heir
Bank deposits
are valued at thei
r acquisit
ion value. Cash a
nd cash equiva
lent
s
are valued at nom
inal value.
When the
nominal value incl
udes inter
ests, these l
atter are ac
counted for thr
ough the balanc
e sheet cap
tion
“deferred char
ges and accr
ued income”.
A write
-
off
is accounted for
when their real
izable val
ue is estim
ated
to be lower than thei
r carrying
value. Amount
payables are book
ed at nominal va
lue. Amount
payables in
foreign currenc
ies are convert
ed in EUR at the exchan
ge rate at closing dat
e. Negative exc
hange differe
nces
resulting fr
om the conver
sion in EU
R at the e
xchange rat
e at closing d
ate are expens
ed; posi
differences ar
e accounted f
or as deferre
d income.
Recoverable a
dvances are re
cognized in op
erating incom
e prorated o
n the associ
ated R&D cost
s as soon
as there is reasona
ble assura
nce that these a
dvances are ac
quired. Recov
erable cash adv
ance
s contracted
with the Wallo
on Region are
subject to r
eimbursement pl
ans that ar
e both fixed (30
% of the recov
erable
advance) and var
iable. When the dec
ision to exploi
t the outcome of t
he research and dev
elopment pro
gram
partially fina
nced by the W
alloon Region i
s notified to t
he Region, the fix
ed part of the r
eimburseme
nts is
recognized in
debts. The pr
esentatio
n of short
-
t
erm and long
-
t
erm debt is base
d on perspect
ives of revenu
e
generation a
nd reviewed
on a yearly
basis. The var
iable part
of reimburs
ements,
dependin
g on turnover,
will be paid in the year
of income. An off
-
bala
nce sheet commit
ment is present
ed in the appendix a
nd
corresponds to
the Company’
s best estimat
e of the amount
potentially re
imbursa
ble to the Region an
d not
recognized in d
ebts (incl
uding varia
ble part).

Annual sh
areholders
meeting
First
quarter 2022 bus
iness update
Third qu
arter 2022 bus
iness update
Chief Executi
ve Offic
er /
Chief Financ
ial Officer
Paper copy in French and English c
an be obtained free of charge via the Compa
ny’s registered office
.
1435
–
Mont
-
Sai
nt
-
Guibert

CEL
Y
AD AND THE ST
OCK EXCHANGE
The Company is listed on E
uronex
t Paris
and Brussels since July 2013 and on
Nasdaq since June 2015.
ISIN:BE0974260896
PEA and PEA P
ME Eligibilit
y
T
otal outstanding shares: 22,593,956
SHAREHOLDERS ON: