Who owns Immunome (IMNM)
Which tracked institutional funds hold IMNM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See IMNM 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
43 tracked funds added or opened IMNM while 51 trimmed or exited it between 2026-Q1 and 2026-Q2 — 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
IMNM’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in IMNM 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 195 tracked filers holding IMNM, 106 increased or opened the position and 95 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 IMNM 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 13
- ALERUS FINANCIAL NA$8M
- FIRST TRUST ADVISORS LP$6M
- FEDERATED HERMES, INC.$3M
- ALPS ADVISORS INC$2M
- BIT Capital GmbH$2M
- Neo Ivy Capital Management$2M
Full exits 17
- T. Rowe Price Investment Management, Inc.$358M
- Jefferies Financial Group Inc.$25M
- Polar Capital Holdings Plc$19M
- JANUS HENDERSON GROUP PLC$18M
- BALYASNY ASSET MANAGEMENT L.P.$5M
- MILLENNIUM MANAGEMENT LLC$3M
Largest adds
- MetLife Investment Management, LLC$17M
- WELLINGTON MANAGEMENT GROUP LLP$8M
- GOLDMAN SACHS GROUP INC$8M
- BlackRock, Inc.$8M
- DIMENSIONAL FUND ADVISORS LP$7M
- VANGUARD PORTFOLIO MANAGEMENT LLC$7M
Largest trims
- PRICE T ROWE ASSOCIATES INC /MD/$25M
- MARSHALL WACE, LLP$22M
- Redmile Group, LLC$17M
- JPMORGAN CHASE & CO$15M
- Woodline Partners LP$13M
- MORGAN STANLEY$11M
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 |
|---|---|---|---|---|
| FMR LLC added | 16,987,553 | $360M | 17.5% | 2026-Q2 |
| BlackRock, Inc. added | 8,805,492 | $187M | 9.1% | 2026-Q2 |
| STATE STREET CORP added | 5,494,625 | $116M | 5.7% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP added | 5,210,216 | $110M | 5.4% | 2026-Q2 |
| Redmile Group, LLC trimmed | 4,911,590 | $104M | 5.1% | 2026-Q2 |
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 4,581,431 | $97M | 4.7% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 4,551,289 | $96M | 4.7% | 2026-Q2 |
| Driehaus Capital Management LLC added | 4,346,139 | $92M | 4.5% | 2026-Q2 |
| ENAVATE SCIENCES GP, LLC | 3,613,799 | $77M | 3.7% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,754,889 | $58M | 2.8% | 2026-Q2 |
| MORGAN STANLEY trimmed | 2,407,942 | $51M | 2.5% | 2026-Q2 |
| SILVERARC CAPITAL MANAGEMENT, LLC added | 2,017,009 | $43M | 2.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 1,848,548 | $39M | 1.9% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 1,773,229 | $38M | 1.8% | 2026-Q2 |
| Sofinnova Investments, Inc. added | 1,720,316 | $36M | 1.8% | 2026-Q2 |
| READYSTATE ASSET MANAGEMENT LP added | 1,605,820 | $34M | 1.7% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 1,512,489 | $32M | 1.6% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,348,979 | $29M | 1.4% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 1,347,358 | $29M | 1.4% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 1,250,275 | $26M | 1.3% | 2026-Q2 |
| Woodline Partners LP trimmed | 1,000,398 | $21M | 1.0% | 2026-Q2 |
| NORTHERN TRUST CORP added | 968,346 | $21M | 1.0% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 886,193 | $19M | 0.9% | 2026-Q2 |
| MetLife Investment Management, LLC added | 859,076 | $18M | 0.9% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 756,297 | $16M | 0.8% | 2026-Q2 |
| Pivotal bioVenture Partners Investment Advisor LLC | 732,512 | $16M | 0.8% | 2026-Q2 |
| TD Asset Management Inc added | 719,272 | $15M | 0.7% | 2026-Q2 |
| NAN FUNG TRINITY (HK) LTD | 714,553 | $15M | 0.7% | 2026-Q2 |
| Candriam S.C.A. added | 680,132 | $14M | 0.7% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 647,888 | $14M | 0.7% | 2026-Q2 |
| Parkman Healthcare Partners LLC added | 594,202 | $13M | 0.6% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 500,537 | $11M | 0.5% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 439,186 | $9M | 0.5% | 2026-Q2 |
| ALERUS FINANCIAL NA new | 383,421 | $8M | 0.4% | 2026-Q2 |
| Granahan Investment Management, LLC added | 378,542 | $8M | 0.4% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 367,967 | $8M | 0.4% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 359,780 | $8M | 0.4% | 2026-Q2 |
| Rock Springs Capital Management LP | 347,666 | $7M | 0.4% | 2026-Q2 |
| UBS Group AG trimmed | 328,493 | $7M | 0.3% | 2026-Q2 |
| Bank of New York Mellon Corp added | 298,866 | $6M | 0.3% | 2026-Q2 |
| Atom Investors LP trimmed | 297,489 | $6M | 0.3% | 2026-Q2 |
| Nuveen, LLC trimmed | 288,922 | $6M | 0.3% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 277,064 | $6M | 0.3% | 2026-Q2 |
| Tidal Investments LLC trimmed | 268,167 | $6M | 0.3% | 2026-Q2 |
| Tema ETFs LLC trimmed | 268,167 | $6M | 0.3% | 2026-Q2 |
| Atika Capital Management LLC | 262,900 | $6M | 0.3% | 2026-Q2 |
| FIRST TRUST ADVISORS LP new | 262,823 | $6M | 0.3% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 251,102 | $5M | 0.3% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 231,861 | $5M | 0.2% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 224,079 | $5M | 0.2% | 2026-Q2 |
| Burkehill Global Management, LP | 200,000 | $4M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 188,636 | $4M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 181,600 | $4M | 0.2% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 172,893 | $4M | 0.2% | 2026-Q2 |
| GILDER GAGNON HOWE & CO LLC trimmed | 152,265 | $3M | 0.2% | 2026-Q2 |
| CITIGROUP INC added | 142,201 | $3M | 0.1% | 2026-Q2 |
| FEDERATED HERMES, INC. new | 142,097 | $3M | 0.1% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 135,451 | $3M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 133,500 | $3M | 0.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 132,906 | $3M | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 132,479 | $3M | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 132,091 | $3M | 0.1% | 2026-Q2 |
| XTX Topco Ltd added | 126,648 | $3M | 0.1% | 2026-Q2 |
| Sio Capital Management, LLC trimmed | 124,168 | $3M | 0.1% | 2026-Q2 |
| Aristotle Atlantic Partners, LLC trimmed | 122,675 | $3M | 0.1% | 2026-Q2 |
| ALPS ADVISORS INC added | 114,440 | $2M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 111,593 | $2M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 108,234 | $2M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 101,394 | $2M | 0.1% | 2026-Q2 |
| Legal & General Group Plc added | 89,623 | $2M | 0.1% | 2026-Q2 |
| Trexquant Investment LP trimmed | 88,391 | $2M | 0.1% | 2026-Q2 |
| BIT Capital GmbH added | 83,400 | $2M | 0.1% | 2026-Q2 |
| Rafferty Asset Management, LLC trimmed | 83,170 | $2M | 0.1% | 2026-Q2 |
| Neo Ivy Capital Management trimmed | 80,876 | $2M | 0.1% | 2026-Q2 |
| Cerity Partners LLC trimmed | 77,561 | $2M | 0.1% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 74,324 | $2M | 0.1% | 2026-Q2 |
| Edgestream Partners, L.P. added | 71,885 | $2M | 0.1% | 2026-Q2 |
| Invesco Ltd. added | 68,938 | $1M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 66,730 | $1M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO added | 62,483 | $1M | 0.1% | 2026-Q2 |
| Freestone Capital Holdings, LLC trimmed | 60,589 | $1M | 0.1% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS new | 60,046 | $1M | 0.1% | 2026-Q2 |
| Ikarian Capital, LLC new | 60,000 | $1M | 0.1% | 2026-Q2 |
| SummitTX Capital, L.P. trimmed | 59,476 | $1M | 0.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 58,998 | $1M | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 58,200 | $1M | 0.1% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 57,673 | $1M | 0.1% | 2026-Q2 |
| BAKER BROS. ADVISORS LP new | 55,306 | $1M | 0.1% | 2026-Q2 |
| Erste Asset Management GmbH | 52,000 | $1M | 0.1% | 2026-Q2 |
| Birchview Capital, LP | 50,000 | $1M | 0.1% | 2026-Q2 |
| Lido Advisors, LLC added | 49,341 | $1M | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 49,084 | $1M | 0.1% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 47,524 | $1M | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC trimmed | 47,227 | $1M | 0.0% | 2026-Q2 |
| Jupiter Topco LLC new | 45,900 | $973K | 0.0% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 45,443 | $963K | 0.0% | 2026-Q2 |
| Scharf Investments, LLC | 44,389 | $941K | 0.0% | 2026-Q2 |
| Corient Private Wealth LP trimmed | 43,227 | $916K | 0.0% | 2026-Q2 |
| PROFUND ADVISORS LLC trimmed | 42,635 | $903K | 0.0% | 2026-Q2 |
| Magnus Financial Group LLC trimmed | 41,759 | $885K | 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.