Who owns Climb Bio (CLYM)
Which tracked institutional funds hold CLYM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CLYM company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
The tracked-fund tape on CLYM is one-sided between 2026-Q1 and 2026-Q2: 59 added or opened and 11 trimmed or exited — on balance accumulating.
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
CLYM’s largest tracked holder by dollar value, RA CAPITAL MANAGEMENT, L.P., sizes it at 1.3% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in CLYM 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 2026-Q1 and 2026-Q2, across 107 tracked filers holding CLYM, 82 increased or opened the position and 40 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 CLYM between the 2026-Q1 and 2026-Q2 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 25
- ADAGE CAPITAL PARTNERS GP, L.L.C.$33M
- Cormorant Asset Management, LP$27M
- FRONTIER CAPITAL MANAGEMENT CO LLC$25M
- Woodline Partners LP$21M
- Redmile Group, LLC$16M
- STEMPOINT CAPITAL LP$10M
Full exits 9
- MPM BIOIMPACT LLC$18M
- Kynam Capital Management, LP$7M
- MARSHALL WACE, LLP$5M
- SILVERARC CAPITAL MANAGEMENT, LLC$5M
- DIADEMA PARTNERS LP$2M
- Longaeva Partners L.P.$1M
Largest adds
- FMR LLC$89M
- RA CAPITAL MANAGEMENT, L.P.$70M
- UBS Group AG$44M
- BlackRock, Inc.$28M
- BRAIDWELL LP$26M
- PRICE T ROWE ASSOCIATES INC /MD/$15M
Largest trims
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$2M
- Verdad Advisers, LP$389K
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 11,300,939 | $147M | 20.1% | 2026-Q2 |
| FMR LLC added | 6,790,364 | $89M | 12.1% | 2026-Q2 |
| UBS Group AG added | 3,404,866 | $44M | 6.0% | 2026-Q2 |
| BRAIDWELL LP added | 2,797,375 | $36M | 5.0% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. new | 2,506,000 | $33M | 4.5% | 2026-Q2 |
| BlackRock, Inc. added | 2,354,872 | $31M | 4.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 2,127,281 | $28M | 3.8% | 2026-Q2 |
| Cormorant Asset Management, LP new | 2,106,000 | $27M | 3.7% | 2026-Q2 |
| FRONTIER CAPITAL MANAGEMENT CO LLC new | 1,939,019 | $25M | 3.4% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,698,654 | $22M | 3.0% | 2026-Q2 |
| Woodline Partners LP new | 1,582,291 | $21M | 2.8% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 1,297,972 | $17M | 2.3% | 2026-Q2 |
| Redmile Group, LLC new | 1,226,330 | $16M | 2.2% | 2026-Q2 |
| GREAT POINT PARTNERS LLC trimmed | 1,000,000 | $13M | 1.8% | 2026-Q2 |
| Affinity Asset Advisors, LLC added | 972,000 | $13M | 1.7% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 908,198 | $12M | 1.6% | 2026-Q2 |
| ADAR1 Capital Management, LLC added | 822,649 | $11M | 1.5% | 2026-Q2 |
| Driehaus Capital Management LLC added | 790,000 | $10M | 1.4% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 782,199 | $10M | 1.4% | 2026-Q2 |
| STEMPOINT CAPITAL LP new | 742,745 | $10M | 1.3% | 2026-Q2 |
| STATE STREET CORP added | 686,772 | $9M | 1.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 657,971 | $9M | 1.2% | 2026-Q2 |
| Parkman Healthcare Partners LLC added | 563,484 | $7M | 1.0% | 2026-Q2 |
| SUPERSTRING CAPITAL MANAGEMENT LP added | 521,082 | $7M | 0.9% | 2026-Q2 |
| SPHERA FUNDS MANAGEMENT LTD. added | 483,747 | $6M | 0.9% | 2026-Q2 |
| Invesco Ltd. new | 373,445 | $5M | 0.7% | 2026-Q2 |
| MORGAN STANLEY added | 365,088 | $5M | 0.6% | 2026-Q2 |
| NAN FUNG TRINITY (HK) LTD trimmed | 360,654 | $5M | 0.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 330,290 | $4M | 0.6% | 2026-Q2 |
| Ikarian Capital, LLC added | 300,000 | $4M | 0.5% | 2026-Q2 |
| TD Asset Management Inc added | 267,102 | $3M | 0.5% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 266,649 | $3M | 0.5% | 2026-Q2 |
| Ally Bridge Group (NY) LLC trimmed | 249,172 | $3M | 0.4% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 239,657 | $3M | 0.4% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 239,451 | $3M | 0.4% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 195,041 | $3M | 0.3% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 192,700 | $3M | 0.3% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 182,645 | $2M | 0.3% | 2026-Q2 |
| FIFTH THIRD BANCORP new | 164,923 | $2M | 0.3% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 164,712 | $2M | 0.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 148,238 | $2M | 0.3% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 131,761 | $2M | 0.2% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 130,300 | $2M | 0.2% | 2026-Q2 |
| ArchPoint Investors added | 128,900 | $2M | 0.2% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC trimmed | 126,138 | $2M | 0.2% | 2026-Q2 |
| Bank of New York Mellon Corp added | 123,658 | $2M | 0.2% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 104,634 | $1M | 0.2% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP new | 96,807 | $1M | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 85,935 | $1M | 0.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 83,230 | $1M | 0.1% | 2026-Q2 |
| Cambria Investment Management, L.P. new | 76,109 | $992K | 0.1% | 2026-Q2 |
| XTX Topco Ltd added | 72,460 | $945K | 0.1% | 2026-Q2 |
| Informed Momentum Co LLC new | 69,657 | $908K | 0.1% | 2026-Q2 |
| DeepCurrents Investment Group LLC new | 64,286 | $838K | 0.1% | 2026-Q2 |
| ALPS ADVISORS INC new | 58,121 | $758K | 0.1% | 2026-Q2 |
| LPL Financial LLC trimmed | 51,174 | $667K | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO new | 49,456 | $645K | 0.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 47,250 | $616K | 0.1% | 2026-Q2 |
| Verdad Advisers, LP trimmed | 46,115 | $601K | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 44,544 | $581K | 0.1% | 2026-Q2 |
| OPPENHEIMER & CO INC new | 41,498 | $541K | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 34,673 | $452K | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. new | 31,670 | $217K | 0.0% | 2026-Q2 |
| Integrated Quantitative Investments LLC new | 31,406 | $410K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 30,660 | $400K | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 30,279 | $395K | 0.1% | 2026-Q2 |
| D. E. Shaw & Co., Inc. new | 28,800 | $376K | 0.1% | 2026-Q2 |
| Virtus Investment Advisers, LLC new | 28,602 | $373K | 0.1% | 2026-Q2 |
| BARCLAYS PLC trimmed | 26,924 | $351K | 0.0% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 25,956 | $338K | 0.0% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 25,664 | $335K | 0.0% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 25,239 | $329K | 0.0% | 2026-Q2 |
| FRANKLIN RESOURCES INC new | 24,639 | $321K | 0.0% | 2026-Q2 |
| MetLife Investment Management, LLC added | 21,305 | $278K | 0.0% | 2026-Q2 |
| CITIGROUP INC added | 16,508 | $215K | 0.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 16,153 | $211K | 0.0% | 2026-Q2 |
| STRS OHIO added | 15,300 | $200K | 0.0% | 2026-Q2 |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. trimmed | 15,241 | $199K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 14,650 | $196K | 0.0% | 2026-Q2 |
| State of Wyoming new | 14,374 | $187K | 0.0% | 2026-Q2 |
| Spark Investment Management LLC new | 13,600 | $177K | 0.0% | 2026-Q2 |
| BLAIR WILLIAM & CO/IL added | 12,700 | $166K | 0.0% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 12,300 | $160K | 0.0% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC | 11,056 | $144K | 0.0% | 2026-Q2 |
| BAILARD, INC. trimmed | 10,900 | $142K | 0.0% | 2026-Q2 |
| SummitTX Capital, L.P. new | 10,791 | $141K | 0.0% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey added | 10,390 | $135K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 10,061 | $131K | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 5,568 | $73K | 0.0% | 2026-Q2 |
| Legal & General Group Plc added | 3,419 | $45K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. added | 3,197 | $42K | 0.0% | 2026-Q2 |
| US BANCORP \DE\ added | 3,120 | $41K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. trimmed | 3,100 | $40K | 0.0% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 2,877 | $38K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 2,240 | $29K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 1,177 | $15K | 0.0% | 2026-Q2 |
| Integrated Wealth Concepts LLC new | 1,130 | $15K | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd new | 886 | $12K | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC new | 821 | $11K | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC | 573 | $7K | 0.0% | 2026-Q2 |
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.