PMN · ProMIS Neurosciences Inc. · Holdings

$11.07 +1.39 (+14.36%) Q2 2026 earnings call transcript

Market Cap

$86.81M

8.97M

Volume · Oct 28 50.65K Avg daily vol (3M) 36.77K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of PMN: 13F, 13D and 13G, insiders and funds →

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 27

Total Value: $84,256,353

Total Shares: 6,402,460

Institutional Ownership Trend

18 quarters

Holder Concentration

Across 27 13F filers

Top Holder

20.2%

of institutional value

Top 5

62.5%

of institutional value

Top 10

87.9%

of institutional value

HHI

1,025

Broadly held

Who Holds PMN

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 27 filers, like-for-like change +4.2%; actively managed books +4.1%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	33.7%	12	+5.2%	0	1
Exempt adviser	5.1%	1	0.0%	0	0
Adviser	16.0%	2	+22.2%	1	0
Bank	0.2%	3	+683.2%	1	0
Holding company	11.0%	3	+1.1%	1	0
Unknown	34.0%	6	-2.3%	1	1

Style	Share	Filers	Change	New	Exited
Index-like	0.1%	1	new	1	0
Systematic-like	8.7%	3	+14.5%	0	0
Concentrated	20.1%	4	+12.8%	0	1
Diversified active	71.1%	19	+0.8%	3	1
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	8.4%	9	+61.9%	3	0
Medium turnover	29.4%	6	+1.3%	0	0
High turnover	28.1%	8	+5.3%	1	1
Unknown	34.1%	4	-2.7%	0	1
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	45.2%	7	-6.2%	1	2
Medium horizon	22.9%	4	+11.2%	0	0
Long horizon	17.5%	12	+22.6%	3	0
Unknown	14.4%	4	+11.4%	0	0
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	38.4%	9	-1.6%	1	2
$1B to $10B	17.0%	4	+4.4%	0	0
$10B to $100B	9.5%	6	+13.4%	0	0
$100B or more	35.2%	8	+8.8%	3	0
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	0.0%	1	-6.0%	0	0
Pooled investment vehicles	28.5%	9	+6.2%	0	1
Unknown	71.5%	17	+3.5%	4	1

Private funds	Share	Filers	Change	New	Exited
Hedge funds	37.3%	10	+19.6%	0	1
Private equity funds	1.3%	1	-76.8%	0	0
Mixed private funds	0.0%	0	—	0	0
No private funds	0.0%	1	-6.0%	0	0
Other private funds	0.0%	0	—	0	0
Unknown	61.4%	15	+4.1%	4	1

Location	Share	Filers	Change	New	Exited
United States	89.6%	19	+4.5%	2	2
Outside the US	10.4%	8	+1.6%	2	0

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.

Conviction and Crowding

27 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

7.41% of filers hold it in their top 10

Mar 31, 2026: 2

Holders above 5%

median weight 0.007%

Mar 31, 2026: 1

Crowding

27.7%

of shares outstanding, 77th percentile

Mar 31, 2026: 27.1%

Private-fund advisers

27.7%

of shares outstanding

Institutional ownership

71.4%

107.3% of the estimated free float above 100%: filers can report lent or client shares more than once

Top 10 holders

87.9%

of 13F shares, Herfindahl 0.102

Active holders

+4.1%

like-for-like share change of active filers

5% stakes on record

1 13D, 9 13G (2 institutional, 7 passive, 0 exempt)

How long holders have held it value-weighted 3.2 quarters

Under 1 year 85.2% 1 to 3 years 0.017% 3 years or more 14.8% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$14.80

estimated per share

Mar 31, 2026: $15.24

Quarter-end price

$13.16

implied by 13F values

Estimated gain or loss

-11.1%

price against the estimated cost

Estimated at a loss

92.6%

of costed 13F value

Estimated cost covers 100.0% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies PMN's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	LPCN Lipocine Inc.	3	0.474
2	IVA Inventiva S.A.	7	0.418
3	TRAW Traws Pharma, Inc.	3	0.387
4	TRAX First Tracks Biotherapeutics, Inc.	5	0.373
5	PALI Palisade Bio, Inc.	6	0.365
6	FBRX Forte Biosciences, Inc.	4	0.338
7	CUE Cue Biopharma, Inc.	3	0.335
8	CTNM Contineum Therapeutics, Inc.	5	0.330
9	SLGL Sol-Gel Technologies Ltd.	3	0.316
10	EPRX Eupraxia Pharmaceuticals Inc.	4	0.307

Shareholder Targets

13F filers that own its peers but not PMN, quarter ended Jun 30, 2026

Found through its holder-overlap peers: LPCN, IVA, TRAW, TRAX, PALI, FBRX, CUE, CTNM, SLGL, EPRX, AVTX, NERV, PRQR, CLYM, ALMS, IKT, ELVN, NGNE, RLMD, MAZE. 508 filers in all.

#	Filer	In peers	Of book	Largest peers
1	FMR LLC Holding company, Diversified active	$994,754,200 15 held	0.040%	ELVN, ALMS, AVTX
2	BlackRock, Inc. Holding company, Index-like	$904,611,878 19 held	0.010%	ALMS, ELVN, MAZE
3	VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like	$513,078,231 16 held	0.010%	ELVN, ALMS, MAZE
4	AyurMaya Capital Management Company, LP Adviser, Unknown	$426,031,354 1 held	100.0%	ALMS
5	ORBIMED ADVISORS LLC Registered adviser, Diversified active	$425,658,278 7 held	8.42%	ELVN, FBRX, RLMD
6	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$352,900,566 14 held	0.040%	ELVN, ALMS, CLYM
7	Polar Capital Holdings Plc Registered adviser, Diversified active	$339,691,066 3 held	0.960%	ELVN, RLMD, IVA
8	STATE STREET CORP Bank, Index-like	$296,068,339 16 held	0.010%	ELVN, ALMS, AVTX
9	GEODE CAPITAL MANAGEMENT, LLC Registered adviser, Index-like	$271,507,579 19 held	0.010%	ELVN, ALMS, MAZE
10	SAMSARA BIOCAPITAL, LLC Registered adviser, Concentrated	$256,428,068 3 held	21.1%	ALMS, NGNE, IVA

Fund Ownership of PMN by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.06% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.06%	+0.06 pp	5,676	1
Index ETFs	0.00%	0.00 pp	0	0
Active ETFs	0.00%	0.00 pp	0	0
Active funds	0.00%	0.00 pp	0	0
Unclassified	0.00%	0.00 pp	0	0
All registered funds	0.06%	+0.06 pp	5,676	1

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 12 Exempt adviser 1 Adviser 2 Bank 3 Holding company 3 Unknown 6

Showing 27 of 27

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Jupiter Topco LLC

$17,012,682

20.19%

1,292,757

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JANUS HENDERSON INVESTORS US LLC	1,292,757	$17,012,682	100.0%	Defined

Deep Track Capital, LP

$10,997,219

13.05%

835,655

WELLINGTON MANAGEMENT GROUP LLP

$9,164,334

10.88%

696,378

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	696,378	$9,164,334	100.0%	Defined

Ally Bridge Group (NY) LLC

$8,163,398

9.69%

620,319

Trails Edge Capital Partners, LP

$7,331,475

8.70%

557,103

Woodline Partners LP

$5,815,548

6.90%

441,911

Yu Fan

$4,339,641

5.15%

329,760

SPHERA FUNDS MANAGEMENT LTD.

$4,284,777

5.09%

325,591

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Sphera Global Healthcare Management LP joint	325,591	$4,284,777	100.0%	Defined

Squadron Capital Management LLC

$4,276,697

5.08%

324,977

Ikarian Capital, LLC

$2,697,800

3.20%

205,000

AMERIPRISE FINANCIAL INC

$2,443,812

2.90%

185,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	185,700	$2,443,812	100.0%	Defined

ADAGE CAPITAL PARTNERS GP, L.L.C.

$2,161,859

2.57%

164,275

683 Capital Management, LLC

$1,250,200

1.48%

95,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
683 Capital Partners, LP	95,000	$1,250,200	100.0%	Defined

ADAR1 Capital Management, LLC

$1,221,906

1.45%

92,850

GREAT POINT PARTNERS LLC

$1,133,734

1.35%

86,150

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JAY JEFFREY R joint	86,150	$1,133,734	100.0%	Defined

BOOTHBAY FUND MANAGEMENT, LLC

$816,946

0.97%

62,078

MILLENNIUM MANAGEMENT LLC

$737,552

0.88%

56,045

BANK OF MONTREAL /CAN/

$149,642

0.18%

11,371

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMO NESBITT BURNS INC.	11,371	$149,642	100.0%	Defined

Seven Fleet Capital Management LP

$139,496

0.17%

10,600

MORGAN STANLEY

$99,476

0.12%

7,559

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY SMITH BARNEY LLC	7,559	$99,476	100.0%	Defined

UBS Group AG

$9,093

0.01%

691

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	1	$13	0.1%	Defined
UBS Securities LLC	690	$9,080	99.9%	Defined

OSAIC HOLDINGS, INC.

$4,737

0.01%

360

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	360	$4,737	100.0%	Defined

ROYAL BANK OF CANADA

$2,868

0.00%

218

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Dominion Securities Inc.	218	$2,868	100.0%	Defined

Steward Partners Investment Advisory, LLC

$1,237

0.00%

Federation des caisses Desjardins du Quebec

$131

0.00%

TD Waterhouse Canada Inc.

$54

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TORONTO DOMINION BANK	5	$54	100.0%	Defined

Caitong International Asset Management Co., Ltd

$39

0.00%

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