Oculis Holding AG (OCS) Ownership
OCS ownership summary
as of October 18, 2026- Institutions
- 47.1% of shares outstanding
- Insiders
- 3.53% of shares outstanding
- Shares outstanding
- 61.6M
- Float
- 52.4M shares available to trade
- Short interest
- 3.31% 1.8M shares short
- Days to cover
- 8.21 short interest up 14.1% vs prior month
- Institutions 47.10%
- Insiders 3.53%
- Other investors 49.37%
OCS top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | EQT Fund Management S.à r.l. | 11.29% | 7.0M | $50.7M | +1.1M (+17.8%) | June 30, 2026 |
| 2 | Gildi - lifeyrissjodur | 3.95% | 2.4M | $17.7M | −17,584 (−0.7%) | March 31, 2026 |
| 3 | Aberdeen Group PLC | 3.51% | 2.2M | $15.7M | +412,863 (+23.6%) | June 30, 2026 |
| 4 | Millennium Management LLC | 3.32% | 2.0M | $14.9M | +1.1M (+123.7%) | June 30, 2026 |
| 5 | Pivotal bioVenture Partners Investment Advisor LLC | 2.45% | 1.5M | $11.0M | −174,033 (−10.4%) | June 30, 2026 |
| 6 | Citadel Advisors Llc | 1.60% | 987K | $7.2M | +825,920 (+512.1%) | June 30, 2026 |
| 7 | BRAIDWELL LP | 1.35% | 834K | $6.1M | +834,183 (0.0%) | June 30, 2026 |
| 8 | Perceptive Advisors LLC | 1.31% | 809K | $5.9M | +315,000 (+63.8%) | June 30, 2026 |
| 9 | Saturn V Capital Management LLC | 1.11% | 685K | $5.0M | +168,119 (+32.5%) | June 30, 2026 |
| 10 | SR ONE CAPITAL MANAGEMENT, LP | 1.04% | 641K | $4.7M | — | June 30, 2026 |
| 11 | Siren, L.L.C. | 1.01% | 625K | $4.6M | +625,000 (0.0%) | June 30, 2026 |
| 12 | Ameriprise Financial Inc | 1.01% | 620K | $4.5M | +619,922 (0.0%) | June 30, 2026 |
| 13 | Wellington Management Company LLP | 0.88% | 540K | $3.9M | −805,672 (−59.9%) | June 30, 2026 |
| 14 | Partner Fund Management LP | 0.71% | 436K | $3.2M | +436,042 (0.0%) | June 30, 2026 |
| 15 | Franklin Templeton Inc | 0.71% | 435K | $3.2M | +434,751 (0.0%) | June 30, 2026 |
| 16 | Manufacturers Life Insurance Co | 0.65% | 399K | $2.9M | +398,980 (0.0%) | June 30, 2026 |
| 17 | Marshall Wace Asset Management Ltd | 0.64% | 395K | $2.9M | +394,880 (0.0%) | June 30, 2026 |
| 18 | SYQUANT CAPITAL SAS | 0.61% | 375K | $2.7M | +152,133 (+68.3%) | June 30, 2026 |
| 19 | Nan Fung Group Holdings Ltd | 0.49% | 301K | $2.2M | −50,180 (−14.3%) | June 30, 2026 |
| 20 | Qube Research & Technologies | 0.43% | 262K | $1.9M | +241,623 (+1,179.2%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 15 holders added 8.0M shares and 4 cut 1.0M.
OCS top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | HBM Healthcare Investments AG Ord | 1.61% | 994K | $7.2M | — | June 30, 2026 |
| 2 | abrdn Healthcare Investors | 1.39% | 856K | $6.2M | — | September 30, 2026 |
| 3 | abrdn Healthcare Opportunities | 1.16% | 717K | $5.2M | −22,433 (−3.0%) | August 31, 2026 |
| 4 | Franklin Biotechnology Discv A(acc)USD | 0.95% | 582K | $4.2M | — | September 30, 2026 |
| 5 | abrdn World Healthcare | 0.79% | 488K | $3.6M | −11,538 (−2.3%) | August 31, 2026 |
| 6 | abrdn Life Sciences Investors | 0.57% | 353K | $2.6M | −66,083 (−15.8%) | September 30, 2026 |
| 7 | Franklin Biotechnology Discovery A | 0.51% | 315K | $2.3M | — | August 31, 2026 |
| 8 | Stefnir Icelandic Growth | 0.51% | 314K | $2.3M | −12,763 (−3.9%) | September 30, 2026 |
| 9 | Helium Fund Selection C-EUR | 0.20% | 122K | $892,967 | +122,492 (0.0%) | December 31, 2025 |
| 10 | Eaton Vance Glbl Macro Abs Ret Advtg I | 0.18% | 110K | $801,827 | — | July 31, 2026 |
| 11 | Vanguard International Explorer Inv | 0.17% | 106K | $770,254 | — | June 30, 2026 |
| 12 | ALPS Medical Breakthroughs ETF | 0.13% | 82K | $595,003 | — | September 30, 2026 |
| 13 | Hartford Small Company Y | 0.11% | 69K | $504,636 | — | August 31, 2026 |
| 14 | Hartford Small Company HLS IA | 0.07% | 45K | $331,068 | — | August 31, 2026 |
| 15 | Helium Fund Performance S EUR | 0.07% | 45K | $329,260 | +45,166 (0.0%) | December 31, 2025 |
| 16 | PPF Helix Biotechnology I USD | 0.07% | 41K | $295,974 | +21,000 (+107.1%) | June 30, 2026 |
| 17 | Stefnir Balanced Fund | 0.05% | 30K | $218,700 | — | September 30, 2026 |
| 18 | Virtus LifeSci Biotech Clinical Trls ETF | 0.05% | 29K | $208,596 | — | September 30, 2026 |
| 19 | State Street® SPDR® S&P® Intl Sm Cp ETF | 0.05% | 28K | $207,452 | — | September 30, 2026 |
| 20 | JHVIT Small Cap Stock NAV | 0.05% | 28K | $205,709 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
OCS shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns OCS
Institutional investors own 47.1% of Oculis's shares and insiders 3.53%. The largest holder is EQT Fund Management S.à r.l. with 11.29% of the shares (7.0M), as of June 30, 2026. Among the top 20 institutions, 15 added shares and 4 reduced their stake in the latest filings. Short interest is 3.31% of the float, or 8.21 days of average trading volume. The share count rose 71.0% since 2021.
Related: OCS analyst forecast, OCS key metrics. See the OCS stock overview for the latest quote and news.
OCS ownership FAQ
Who owns the most Oculis stock?
The largest shareholders of Oculis are EQT Fund Management S.à r.l. (11.29%), Gildi - lifeyrissjodur (3.95%), Aberdeen Group PLC (3.51%), Millennium Management LLC (3.32%), Pivotal bioVenture Partners Investment Advisor LLC (2.45%).
What percentage of Oculis is owned by institutions?
Institutions hold 47.1% of Oculis's shares outstanding; insiders hold 3.53%.
Which funds own Oculis?
The largest fund holders of Oculis are HBM Healthcare Investments AG Ord (1.61%), abrdn Healthcare Investors (1.39%), abrdn Healthcare Opportunities (1.16%), Franklin Biotechnology Discv A(acc)USD (0.95%), abrdn World Healthcare (0.79%).
What is Oculis's short interest?
1.8M shares of Oculis were sold short, 3.31% of the float; at the average daily volume it would take 8.21 days to cover.
How many shares of Oculis are outstanding?
Oculis has 61.6M shares outstanding, of which 52.4M are in the public float.