OCSAW · Oculis Holding AG · Holdings
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.
Institutional Ownership Trend
Who Holds OCSAW
Last 8 quarters through Jun 30, 2026Each 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: 8 filers, like-for-like change +4.8%; actively managed books +4.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 8.7% | 1 | -59.5% |
| Exempt adviser | 17.3% | 1 | new |
| Bank | 0.1% | 1 | +11.1% |
| Benefit plan | 0.0% | 0 | — |
| Broker-dealer | 0.0% | 0 | — |
| Unknown | 73.9% | 5 | 0.0% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Systematic-like | 40.9% | 3 | +23.9% |
| Diversified active | 59.1% | 5 | -5.4% |
| Concentrated | 0.0% | 0 | — |
| Index-like | 0.0% | 0 | — |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Medium turnover | 7.7% | 3 | +0.2% |
| High turnover | 92.3% | 5 | +5.2% |
| Low turnover | 0.0% | 0 | — |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 2.5% | 1 | 0.0% |
| Medium horizon | 48.9% | 2 | +54.7% |
| Long horizon | 40.0% | 4 | 0.0% |
| Unknown | 8.7% | 1 | -59.5% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 2.5% | 1 | 0.0% |
| $1B to $10B | 62.6% | 4 | +7.8% |
| $100B or more | 34.9% | 3 | 0.0% |
| $10B to $100B | 0.0% | 0 | — |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Pooled investment vehicles | 8.7% | 1 | -59.5% |
| Registered funds and BDCs | 0.0% | 0 | — |
| Unknown | 91.3% | 7 | +23.4% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 8.7% | 1 | -59.5% |
| Private funds, type not stated | 17.3% | 1 | new |
| Other private funds | 0.0% | 0 | — |
| Unknown | 74.1% | 6 | 0.0% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 43.4% | 3 | -22.7% |
| Outside the US | 56.6% | 5 | +44.0% |
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.
Conviction and Crowding
8 13F filers, quarter ended Jun 30, 2026Measured 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.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Shared Holders
Companies OCSAW's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | AVLN Avalyn Pharma Inc. | 4 |
| 2 | SPTX Seaport Therapeutics, Inc. | 3 |
| 3 | AGMB AgomAb Therapeutics NV | 3 |
| 4 | EVMN Evommune, Inc. | 3 |
| 5 | RYTM Rhythm Pharmaceuticals, Inc. | 5 |
| 6 | IVVD Invivyd, Inc. | 3 |
| 7 | MPLT MapLight Therapeutics, Inc. | 3 |
| 8 | AMLX Amylyx Pharmaceuticals, Inc. | 4 |
| 9 | TENX Tenax Therapeutics, Inc. | 3 |
| 10 | ENGN enGene Therapeutics Inc. | 3 |
Shareholder Targets
13F filers that own its peers but not OCSAW, quarter ended Jun 30, 2026Found 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 | Largest peers |
|---|---|---|---|
| 1 | BlackRock, Inc. Holding company, Index-like | $2,868,127,667 18 held | RYTM, SYRE, IRTC |
| 2 | FMR LLC Holding company, Diversified active | $2,657,871,471 19 held | SYRE, AMLX, DYN |
| 3 | BAKER BROS. ADVISORS LP Registered adviser, Concentrated | $1,504,337,448 6 held | CELC, RYTM, DYN |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like | $1,493,466,133 18 held | RYTM, SYRE, CELC |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active | $1,065,688,911 18 held | RYTM, SYRE, CELC |
| 6 | RTW INVESTMENTS, LP Registered adviser, Diversified active | $1,056,029,666 6 held | SYRE, CELC, IRTC |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active | $990,691,514 18 held | RYTM, IRTC, SYRE |
| 8 | RA CAPITAL MANAGEMENT, L.P. Registered adviser, Concentrated | $864,282,900 4 held | RYTM, DMRA, EVMN |
| 9 | T. Rowe Price Investment Management, Inc. Adviser, Diversified active | $839,021,390 3 held | DYN, MPLT, AVLN |
| 10 | Jupiter Topco LLC Unknown, Diversified active | $770,073,171 13 held | DYN, SYRE, RYTM |
Quarterly Activity
New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega UBS Group AG | +30 | 300 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid MOORE CAPITAL MANAGEMENT, LP | −21,666 | 20,000 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Large LMR Partners LLP | 39,949 | $0 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid WOLVERINE ASSET MANAGEMENT LLC | 7,774 | $0 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega D. E. Shaw & Co., Inc. OCSAW | — | — | 34,716 | Shares | 2026-08-14 | |
| Mid MMCAP International Inc. SPC OCSAW | — | — | 73,025 | Shares | 2026-08-14 | |
| Large LMR Partners LLP Exempt adviser OCSAW | — | — | 39,949 | Shares | 2026-08-14 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser OCSAW | — | — | 140,000 | Call | 2026-08-14 | |
| Mid Vestcor Inc OCSAW | — | — | 11,666 | Shares | 2026-08-11 | |
| Mega JANE STREET GROUP, LLC OCSAW | — | — | 45,702 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank OCSAW | — | — | 300 | Shares | 2026-08-13 | |
| Small Mint Tower Capital Management B.V. OCSAW | — | — | 5,833 | Shares | 2026-08-18 | |
| Mid MOORE CAPITAL MANAGEMENT, LP Registered adviser OCSAW | — | — | 20,000 | Shares | 2026-08-14 |