OCS · Oculis Holding AG · Holdings

$7.87 +0.38 (+5.07%) At close · Oct 21

Market Cap

$461.29M

61.59M

Volume · Oct 21 324.11K Avg daily vol (3M) 265.84K

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 OCS: 13F, 13D and 13G, insiders and funds →

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.

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: 65

Total Value: $316,361,133

Total Shares: 23,592,798

Institutional Ownership Trend

15 quarters

Holder Concentration

Across 65 13F filers

Top Holder

29.8%

of institutional value

Top 5

58.8%

of institutional value

Top 10

74.2%

of institutional value

HHI

1,199

Broadly held

Who Holds OCS

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: 65 filers, like-for-like change +30.9%; actively managed books +31.1%; index-like books +29.3%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	32.5%	27	+49.7%	9	9
Exempt adviser	40.0%	7	+22.8%	3	0
Adviser	4.5%	2	+972.5%	2	1
Bank	1.3%	8	+32.3%	1	0
Broker-dealer	0.0%	1	new	1	0
Holding company	12.8%	5	-7.2%	1	0
Non-US	0.0%	0	-100.0%	0	1
Benefit plan	0.0%	0	—	0	0
Unknown	9.0%	15	+28.5%	4	7

Style	Share	Filers	Change	New	Exited
Index-like	10.9%	6	+29.3%	0	0
Systematic-like	21.6%	20	+160.8%	6	2
Concentrated	44.7%	11	+4.0%	3	5
Diversified active	22.8%	27	+36.6%	12	11
Unknown	0.0%	1	0.0%	0	0
Not measured	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	25.6%	20	+20.6%	4	3
Medium turnover	18.9%	15	+2.9%	6	7
High turnover	25.8%	27	+134.9%	9	7
Unknown	29.7%	3	+15.1%	2	1
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	32.5%	9	+19.3%	4	6
Medium horizon	14.7%	13	+76.0%	5	5
Long horizon	41.3%	29	+17.7%	7	6
Unknown	11.6%	14	+100.0%	5	1
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	42.2%	12	+9.0%	4	6
$1B to $10B	16.9%	20	+70.3%	9	8
$10B to $100B	16.3%	12	+9.0%	3	3
$100B or more	24.7%	21	+91.8%	5	1
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	0.0%	4	-81.8%	3	2
Pooled investment vehicles	31.2%	18	+65.6%	5	5
Registered funds and BDCs	0.6%	3	-75.3%	1	2
Pension and profit sharing plans	0.0%	1	0.0%	0	0
Governments and sovereign funds	0.6%	1	+241.9%	0	0
Other	0.0%	0	—	0	0
Diversified	0.0%	0	—	0	0
Unknown	67.5%	38	+23.4%	12	9

Private funds	Share	Filers	Change	New	Exited
Hedge funds	31.0%	21	+94.5%	6	3
Private equity funds	32.4%	4	+16.0%	0	0
Venture capital funds	6.4%	1	-32.5%	0	2
Mixed private funds	1.9%	1	new	1	0
Private funds, type not stated	0.2%	1	-50.5%	1	2
No private funds	0.6%	6	+16.8%	4	2
Other private funds	0.0%	0	—	0	0
Unknown	27.5%	31	+24.3%	9	9

Location	Share	Filers	Change	New	Exited
United States	50.7%	45	+32.2%	15	15
Outside the US	49.3%	20	+29.6%	6	3

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.

Excluded 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

59 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

8.47% of filers hold it in their top 10

Mar 31, 2026: 7

Holders above 5%

median weight 0.004%

Mar 31, 2026: 4

Crowding

—

a foreign private issuer reports ordinary shares, a different unit from the listed shares

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

a foreign private issuer reports ordinary shares, a different unit from the listed shares

Top 10 holders

74.3%

of 13F shares, Herfindahl 0.121

Active holders

+31.5%

like-for-like share change of active filers

5% stakes on record

0 13D, 1 13G (0 institutional, 0 passive, 1 exempt)

How long holders have held it value-weighted 4.8 quarters

Under 1 year 45.6% 1 to 3 years 46.0% 3 years or more 8.43% 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

$20.43

estimated per share

Mar 31, 2026: $19.54

Quarter-end price

$13.87

implied by 13F values

Estimated gain or loss

-32.1%

price against the estimated cost

Estimated at a loss

88.2%

of costed 13F value

Estimated cost covers 70.1% 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 OCS's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	AVLN Avalyn Pharma Inc.	4	0.251
2	SPTX Seaport Therapeutics, Inc.	3	0.251
3	AGMB AgomAb Therapeutics NV	3	0.251
4	EVMN Evommune, Inc.	3	0.226
5	RYTM Rhythm Pharmaceuticals, Inc.	5	0.222
6	IVVD Invivyd, Inc.	3	0.219
7	MPLT MapLight Therapeutics, Inc.	3	0.219
8	AMLX Amylyx Pharmaceuticals, Inc.	4	0.213
9	TENX Tenax Therapeutics, Inc.	3	0.208
10	ENGN enGene Therapeutics Inc.	3	0.202

Shareholder Targets

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

Found through its holder-overlap peers: AVLN, SPTX, AGMB, EVMN, RYTM, IVVD, MPLT, AMLX, TENX, ENGN, XFOR, ZURA, INBX, DYN, DMRA, CGEM, CELC, IRTC, SYRE, ORIC. 726 filers in all.

#	Filer	In peers	Of book	Largest peers
1	BlackRock, Inc. Holding company, Index-like	$2,868,127,667 18 held	0.040%	RYTM, SYRE, IRTC
2	FMR LLC Holding company, Diversified active	$2,657,871,471 19 held	0.120%	SYRE, AMLX, DYN
3	BAKER BROS. ADVISORS LP Registered adviser, Concentrated	$1,504,337,448 6 held	7.57%	CELC, RYTM, DYN
4	VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like	$1,493,466,133 18 held	0.030%	RYTM, SYRE, CELC
5	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$1,065,688,911 18 held	0.110%	RYTM, SYRE, CELC
6	RTW INVESTMENTS, LP Registered adviser, Diversified active	$1,056,029,666 6 held	9.02%	SYRE, CELC, IRTC
7	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$990,691,514 18 held	0.040%	RYTM, IRTC, SYRE
8	RA CAPITAL MANAGEMENT, L.P. Registered adviser, Concentrated	$864,282,900 4 held	7.61%	RYTM, DMRA, EVMN
9	T. Rowe Price Investment Management, Inc. Adviser, Diversified active	$839,021,390 3 held	0.550%	DYN, MPLT, AVLN
10	Jupiter Topco LLC Unknown, Diversified active	$770,073,171 13 held	0.310%	DYN, SYRE, RYTM

Fund Ownership of OCS by Fund Type

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

Index funds and index ETFs hold 0.10% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.00%	0.00 pp	240	1
Index ETFs	0.10%	+0.01 pp	58,929	1
Active ETFs	0.00%	0.00 pp	0	0
Active funds	0.06%	-0.70 pp	35,743	3
Unclassified	0.00%	0.00 pp	0	0
All registered funds	0.15%	-0.68 pp	94,912	5

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 27 Exempt adviser 7 Adviser 2 Bank 8 Broker-dealer 1 Holding company 5 Unknown 15

Showing 71 of 71

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

EQT Fund Management S.a r.l.

$96,400,577

30.47%

6,950,294

Aberdeen Group plc

$29,956,550

9.47%

2,159,809

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

Manager	Shares	Value (USD)	% of position	Discretion
abrdn Inc.	2,159,809	$29,956,550	100.0%	Defined

MILLENNIUM MANAGEMENT LLC

$28,329,017

8.95%

2,042,467

Pivotal bioVenture Partners Investment Advisor LLC

$20,891,687

6.60%

1,506,250

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

Manager	Shares	Value (USD)	% of position	Discretion
Pivotal bioVenture Partners Fund I U.G.P. Ltd	1,506,250	$20,891,687	100.0%	Defined

CITADEL ADVISORS LLC

$13,692,519

4.33%

987,204

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

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	29,589	$410,399	3.0%	Defined
Held directly	957,615	$13,282,120	97.0%	Defined

BRAIDWELL LP

$11,570,118

3.66%

834,183

PERCEPTIVE ADVISORS LLC

$11,218,430

3.55%

808,827

Saturn V Capital Management LP

$9,499,285

3.00%

684,880

SR One Capital Management, LP

$8,890,975

2.81%

641,022

Siren, L.L.C.

$8,668,750

2.74%

625,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Invus Group, LLC	625,000	$8,668,750	100.0%	Defined

AMERIPRISE FINANCIAL INC

$8,598,318

2.72%

619,922

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	619,922	$8,598,318	100.0%	Defined

WELLINGTON MANAGEMENT GROUP LLP

$7,490,575

2.37%

540,056

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	425,892	$5,907,122	78.9%	Defined
Wellington Trust Company, NA joint	109,354	$1,516,739	20.2%	Defined
Wellington Management Australia Pty Ltd	4,810	$66,714	0.9%	Defined

PFM Health Sciences, LP

$6,047,902

1.91%

436,042

FRANKLIN RESOURCES INC

$6,029,996

1.91%

434,751

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

Manager	Shares	Value (USD)	% of position	Discretion
FRANKLIN ADVISERS INC	434,751	$6,029,996	100.0%	Defined

MANUFACTURERS LIFE INSURANCE COMPANY, THE

$5,533,852

1.75%

398,980

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

Manager	Shares	Value (USD)	% of position	Discretion
MANULIFE FINANCIAL CORP joint	398,980	$5,533,852	100.0%	Defined

MARSHALL WACE, LLP

$5,476,985

1.73%

394,880

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

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	394,880	$5,476,985	100.0%	Other

Nan Fung Group Holdings Ltd

$4,168,836

1.32%

300,565

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

Manager	Shares	Value (USD)	% of position	Discretion
Pivotal bioVenture Partners Investment Advisor LLC joint	300,565	$4,168,836	100.0%	Defined

Qube Research & Technologies Ltd

$3,635,507

1.15%

262,113

MORGAN STANLEY

$3,121,899

0.99%

225,083

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

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	984	$13,648	0.4%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	210,185	$2,915,265	93.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	1,000	$13,870	0.4%	Defined
Morgan Stanley Bank, N.A.	6,764	$93,816	3.0%	Defined
EATON VANCE MANAGEMENT	6,150	$85,300	2.7%	Defined

Point72 Asset Management, L.P.

$3,056,989

0.97%

220,403

Alyeska Investment Group, L.P.

$2,861,824

0.90%

206,332

Woodline Partners LP

$2,790,644

0.88%

201,200

UBS Group AG

$2,530,095

0.80%

182,415

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	3,630	$50,348	2.0%	Defined
UBS AG	167,156	$2,318,453	91.6%	Defined
UBS Switzerland AG	11,629	$161,294	6.4%	Defined

Trexquant Investment LP

$2,097,532

0.66%

151,228

Compagnie Lombard Odier SCmA

$1,462,660

0.46%

105,455

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

Manager	Shares	Value (USD)	% of position	Discretion
Bank Lombard Odier & Co Ltd	105,455	$1,462,660	100.0%	Defined

Y-Intercept (Hong Kong) Ltd

$1,080,591

0.34%

115,695

GOLDMAN SACHS GROUP INC

$963,992

0.30%

69,502

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

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	69,502	$963,992	100.0%	Defined

Balyasny Asset Management L.P.

$909,982

0.29%

65,608

Squarepoint Ops LLC

$854,461

0.27%

61,605

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

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	61,605	$854,461	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$849,176

0.27%

61,224

ALPS ADVISORS INC

$804,723

0.25%

58,019

BOOTHBAY FUND MANAGEMENT, LLC

$782,143

0.25%

56,391

CITADEL ADVISORS LLC

$615,828

0.19%

44,400

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

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	44,400	$615,828	100.0%	Defined

BANK OF AMERICA CORP /DE/

$609,974

0.19%

43,978

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

Manager	Shares	Value (USD)	% of position	Discretion
MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	43,978	$609,974	100.0%	Defined

XTX Topco Ltd

$597,741

0.19%

43,096

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

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	43,096	$597,741	100.0%	Defined

Jump Financial, LLC

$551,096

0.17%

39,733

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

Manager	Shares	Value (USD)	% of position	Discretion
Jump Trading Holdings, LLC	110	$1,525	0.3%	Defined
Leap GP LLC joint	39,623	$549,571	99.7%	Defined

TUDOR INVESTMENT CORP ET AL

$430,261

0.14%

31,021

Virtus Investment Advisers, LLC

$409,220

0.13%

29,504

Persistent Asset Partners Ltd

$355,127

0.11%

25,604

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$348,137

0.11%

25,100

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	25,100	$348,137	100.0%	Other

JPMORGAN CHASE & CO

$344,613

0.11%

24,846

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

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	22,454	$311,436	90.4%	Defined
J.P. Morgan Securities plc	2,392	$33,177	9.6%	Defined

STATE STREET CORP

$327,012

0.10%

23,577

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

Manager	Shares	Value (USD)	% of position	Discretion
SSGA FUNDS MANAGEMENT, INC.	23,577	$327,012	100.0%	Defined

NORTHERN TRUST CORP

$286,041

0.09%

20,623

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

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	20,623	$286,041	100.0%	Defined

HIMENSION CAPITAL (SINGAPORE) PTE. LTD.

$239,618

0.08%

17,276

Marble Bar Asset Management LLP

$205,359

0.06%

14,806

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$177,536

0.06%

12,800

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	12,800	$177,536	100.0%	Other

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$171,030

0.05%

12,331

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	12,331	$171,030	100.0%	Other

JANE STREET GROUP, LLC

$156,148

0.05%

11,258

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	6,436	$89,267	57.2%	Defined
Jane Street Global Trading, LLC	4,822	$66,881	42.8%	Defined

Quantbot Technologies LP

$73,774

0.02%

5,319

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

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	5,319	$73,774	100.0%	Sole

Aventura Private Wealth, LLC

$55,480

0.02%

4,000

BARCLAYS PLC

$44,897

0.01%

3,237

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

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	3,237	$44,897	100.0%	Defined

WOLVERINE ASSET MANAGEMENT LLC

$41,263

0.01%

2,975

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	2,975	$41,263	100.0%	Defined

GROUP ONE TRADING LLC

$33,288

0.01%

2,400

SHP Wealth Management

$10,485

0.00%

756

JONES FINANCIAL COMPANIES LLLP

$2,912

0.00%

210

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

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	210	$2,912	100.0%	Sole

SYQUANT CAPITAL SAS

$2,824

0.00%

375,000

OSAIC HOLDINGS, INC.

$1,414

0.00%

102

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

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	102	$1,414	100.0%	Defined

Larson Financial Group LLC

$1,151

0.00%

ROYAL BANK OF CANADA

$1,095

0.00%

CITIGROUP INC

$1,054

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	76	$1,054	100.0%	Defined

Stone House Investment Management, LLC

$110

0.00%

DUPONT CAPITAL MANAGEMENT CORP

$55

0.00%

D. E. Shaw & Co., Inc. OCSAW

—

34,716

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

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	34,716	$0	—	Defined

MMCAP International Inc. SPC OCSAW

—

73,025

LMR Partners LLP OCSAW

—

39,949

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

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	39,949	$0	—	Sole

MILLENNIUM MANAGEMENT LLC OCSAW

—

140,000

Vestcor Inc OCSAW

—

11,666

JANE STREET GROUP, LLC OCSAW

—

45,702

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	45,702	$0	—	Defined

UBS Group AG OCSAW

—

300

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	300	$0	—	Defined

Mint Tower Capital Management B.V. OCSAW

—

5,833

MOORE CAPITAL MANAGEMENT, LP OCSAW

—

20,000

Key facts CIK 1953530 CUSIP H5870P102 13F (30d) 3 filings 3 filers Visit website Investor relations