Who owns OnKure Therapeutics, Inc. (OKUR)
Which tracked institutional funds hold OKUR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See OKUR company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
18 tracked funds added or opened OKUR while 7 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
OKUR’s largest tracked holder by dollar value, RA CAPITAL MANAGEMENT, L.P., sizes it at 0.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in OKUR divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 50 tracked filers holding OKUR, 29 increased or opened the position and 24 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in OKUR between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 10
- RA CAPITAL MANAGEMENT, L.P.$17M
- BVF INC/IL$8M
- Vivo Capital, LLC$8M
- Foresite Capital Management VI LLC$6M
- ADAGE CAPITAL PARTNERS GP, L.L.C.$5M
- Sio Capital Management, LLC$4M
Full exits 3
- VANGUARD GROUP INC$2M
- HIGHBRIDGE CAPITAL MANAGEMENT LLC$2M
- KOTLER KEVIN$573K
Largest adds
- StepStone Group LP$10M
- ADAR1 Capital Management, LLC$7M
- Prosight Management, LP$7M
- Vestal Point Capital, LP$6M
- ACORN CAPITAL ADVISORS, LLC$4M
- RENAISSANCE TECHNOLOGIES LLC$844K
Largest trims
- Shay Capital LLC$2M
- CANTOR FITZGERALD, L. P.$877K
- CITADEL ADVISORS LLC$491K
- Rosalind Advisors, Inc.$281K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. new | 3,998,333 | $17M | 12.2% | 2026-Q1 |
| ACORN CAPITAL ADVISORS, LLC | 2,839,674 | $12M | 8.7% | 2026-Q1 |
| StepStone Group LP added | 2,660,612 | $11M | 8.1% | 2026-Q1 |
| ADAR1 Capital Management, LLC added | 2,434,941 | $10M | 7.4% | 2026-Q1 |
| Prosight Management, LP added | 2,154,381 | $9M | 6.6% | 2026-Q1 |
| BVF INC/IL new | 1,978,972 | $8M | 6.1% | 2026-Q1 |
| Vivo Capital, LLC new | 1,927,710 | $8M | 5.9% | 2026-Q1 |
| Vestal Point Capital, LP added | 1,839,819 | $8M | 5.6% | 2026-Q1 |
| Foresite Capital Management VI LLC new | 1,445,783 | $6M | 4.4% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. new | 1,204,819 | $5M | 3.7% | 2026-Q1 |
| Sio Capital Management, LLC new | 1,078,965 | $4M | 3.3% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 582,477 | $2M | 1.8% | 2026-Q1 |
| NEA Management Company, LLC | 478,548 | $2M | 1.5% | 2026-Q1 |
| Rosalind Advisors, Inc. trimmed | 443,763 | $2M | 1.4% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 377,250 | $2M | 1.2% | 2026-Q1 |
| Carlyle Group Inc. | 269,895 | $1M | 0.8% | 2026-Q1 |
| Affinity Asset Advisors, LLC trimmed | 240,963 | $998K | 0.7% | 2026-Q1 |
| Sofinnova Investments, Inc. new | 141,700 | $587K | 0.4% | 2026-Q1 |
| Stonepine Capital Management, LLC new | 132,578 | $549K | 0.4% | 2026-Q1 |
| Shay Capital LLC trimmed | 132,219 | $547K | 0.4% | 2026-Q1 |
| CANTOR FITZGERALD, L. P. trimmed | 99,900 | $414K | 0.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 98,750 | $409K | 0.3% | 2026-Q1 |
| Rangeley Capital, LLC trimmed | 95,000 | $393K | 0.3% | 2026-Q1 |
| Aisling Capital Management LP | 88,607 | $367K | 0.3% | 2026-Q1 |
| BlackRock, Inc. trimmed | 49,587 | $205K | 0.2% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 43,371 | $180K | 0.1% | 2026-Q1 |
| Aldebaran Capital, LLC trimmed | 40,419 | $167K | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 37,587 | $156K | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP new | 37,055 | $153K | 0.1% | 2026-Q1 |
| MARSHALL WACE, LLP new | 36,444 | $151K | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 34,129 | $141K | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 30,499 | $126K | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 26,812 | $111K | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 25,000 | $104K | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 24,262 | $100K | 0.1% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP trimmed | 22,224 | $92K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP | 19,903 | $82K | 0.1% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 16,293 | $67K | 0.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 14,327 | $59K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 13,500 | $56K | 0.0% | 2026-Q1 |
| STATE STREET CORP new | 13,462 | $56K | 0.0% | 2026-Q1 |
| NewEdge Advisors, LLC new | 44,551 | $45K | 0.0% | 2026-Q1 |
| UBS Group AG added | 3,395 | $14K | 0.0% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 745 | $3K | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS | 281 | $1K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 230 | $1K | 0.0% | 2026-Q1 |
| TRUST CO OF TOLEDO NA /OH/ | 136 | $563 | 0.0% | 2026-Q1 |
| OSAIC HOLDINGS, INC. trimmed | 90 | $372 | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 45 | $171 | 0.0% | 2026-Q1 |
| CITIGROUP INC trimmed | 1 | $4 | 0.0% | 2026-Q1 |
| Cormorant Asset Management, LP | 1,837,739 | $8M | 5.8% | 2025-Q1 stale |
| PERCEPTIVE ADVISORS LLC | 1,004,439 | $4M | 3.2% | 2025-Q1 stale |
| SAMSARA BIOCAPITAL, LLC | 824,155 | $4M | 2.6% | 2025-Q1 stale |
| VANGUARD GROUP INC trimmed | 626,593 | $2M | 1.3% | 2025-Q4 stale |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC trimmed | 542,361 | $2M | 1.2% | 2025-Q4 stale |
| Ikarian Capital, LLC | 253,754 | $1M | 0.8% | 2025-Q1 stale |
| KOTLER KEVIN new | 197,691 | $573K | 0.4% | 2025-Q4 stale |
| Deep Track Capital, LP trimmed | 180,510 | $431K | 0.3% | 2025-Q2 stale |
| BOOTHBAY FUND MANAGEMENT, LLC | 78,021 | $335K | 0.2% | 2025-Q1 stale |
| TANG CAPITAL MANAGEMENT LLC trimmed | 116,395 | $320K | 0.2% | 2025-Q3 stale |
| SPHERA FUNDS MANAGEMENT LTD. | 60,454 | $175K | 0.1% | 2025-Q4 stale |
| Nantahala Capital Management, LLC | 54,208 | $130K | 0.1% | 2025-Q2 stale |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. new | 41,051 | $98K | 0.1% | 2025-Q2 stale |
| Qube Research & Technologies Ltd new | 18,663 | $80K | 0.1% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP | 26,608 | $77K | 0.1% | 2025-Q4 stale |
| HSBC HOLDINGS PLC new | 19,973 | $58K | 0.0% | 2025-Q4 stale |
| GOLDMAN SACHS GROUP INC new | 14,964 | $36K | 0.0% | 2025-Q2 stale |
| BAILARD, INC. new | 14,239 | $34K | 0.0% | 2025-Q2 stale |
| China Universal Asset Management Co., Ltd. trimmed | 2,251 | $6K | 0.0% | 2025-Q3 stale |
| Tower Research Capital LLC (TRC) added | 1,935 | $5K | 0.0% | 2025-Q3 stale |
| Mirae Asset Global Investments Co., Ltd. added | 497 | $1K | 0.0% | 2025-Q3 stale |
| FMR LLC added | 400 | $1K | 0.0% | 2025-Q4 stale |
| GF FUND MANAGEMENT CO. LTD. trimmed | 271 | $745 | 0.0% | 2025-Q3 stale |
| BANK OF AMERICA CORP /DE/ trimmed | 141 | $409 | 0.0% | 2025-Q4 stale |
| GROUP ONE TRADING LLC | 56 | $162 | 0.0% | 2025-Q4 stale |
| MAI Capital Management | 6 | $17 | 0.0% | 2025-Q3 stale |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO new | 2 | $6 | 0.0% | 2025-Q4 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.