Who owns ENGN (ENGN)
Which tracked institutional funds hold ENGN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ENGN company fundamentals →
Ownership as of the 2026-Q1 13F filings. 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
13 tracked funds added or opened ENGN while 31 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
ENGN’s largest tracked holder by dollar value, FCPM III SERVICES B.V., sizes it at 9.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 9.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ENGN 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 71 tracked filers holding ENGN, 37 increased or opened the position and 29 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 ENGN 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 4
- BALYASNY ASSET MANAGEMENT L.P.$8M
- Birchview Capital, LP$2M
- FMR LLC$2M
- Trexquant Investment LP$713K
Full exits 5
- Cormorant Asset Management, LP$36M
- JANUS HENDERSON GROUP PLC$17M
- EVENTIDE ASSET MANAGEMENT, LLC$9M
- GOLDMAN SACHS GROUP INC$1M
- Vivo Capital, LLC$844K
Largest adds
- Siren, L.L.C.$6M
- Vestal Point Capital, LP$5M
- KENNEDY CAPITAL MANAGEMENT LLC$2M
- Blue Owl Capital Holdings LP$916K
- RENAISSANCE TECHNOLOGIES LLC$875K
- CITADEL ADVISORS LLC$819K
Largest trims
- FCPM III SERVICES B.V.$23M
- PERCEPTIVE ADVISORS LLC$13M
- BRAIDWELL LP$12M
- Venrock Adviser, LLC$11M
- Deep Track Capital, LP$10M
- MILLENNIUM MANAGEMENT LLC$7M
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 |
|---|---|---|---|---|
| FCPM III SERVICES B.V. | 9,632,561 | $66M | 14.8% | 2026-Q1 |
| PERCEPTIVE ADVISORS LLC trimmed | 5,827,506 | $40M | 8.9% | 2026-Q1 |
| Siren, L.L.C. added | 5,253,159 | $36M | 8.1% | 2026-Q1 |
| Venrock Adviser, LLC | 4,771,414 | $32M | 7.3% | 2026-Q1 |
| Deep Track Capital, LP | 4,377,572 | $30M | 6.7% | 2026-Q1 |
| BRAIDWELL LP trimmed | 2,456,870 | $17M | 3.8% | 2026-Q1 |
| Nextech Invest, Ltd. added | 2,324,943 | $16M | 3.6% | 2026-Q1 |
| Vestal Point Capital, LP added | 2,165,000 | $15M | 3.3% | 2026-Q1 |
| MPM BIOIMPACT LLC added | 1,845,373 | $13M | 2.8% | 2026-Q1 |
| Kynam Capital Management, LP trimmed | 1,356,843 | $9M | 2.1% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 1,314,993 | $9M | 2.0% | 2026-Q1 |
| Polar Capital Holdings Plc added | 1,224,071 | $8M | 1.9% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. new | 1,148,997 | $8M | 1.8% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 959,681 | $7M | 1.5% | 2026-Q1 |
| Omega Fund Management, LLC | 876,357 | $6M | 1.3% | 2026-Q1 |
| SR One Capital Management, LP | 747,750 | $5M | 1.1% | 2026-Q1 |
| Affinity Asset Advisors, LLC trimmed | 610,370 | $4M | 0.9% | 2026-Q1 |
| Eversept Partners, LP added | 510,543 | $3M | 0.8% | 2026-Q1 |
| KENNEDY CAPITAL MANAGEMENT LLC added | 425,781 | $3M | 0.7% | 2026-Q1 |
| BVF INC/IL | 945,402 | $2M | 0.6% | 2026-Q1 |
| Privium Fund Management B.V. | 352,087 | $2M | 0.5% | 2026-Q1 |
| MARSHALL WACE, LLP | 343,928 | $2M | 0.5% | 2026-Q1 |
| Monashee Investment Management LLC added | 320,000 | $2M | 0.5% | 2026-Q1 |
| Woodline Partners LP | 250,000 | $2M | 0.4% | 2026-Q1 |
| Birchview Capital, LP new | 250,000 | $2M | 0.4% | 2026-Q1 |
| FMR LLC new | 232,200 | $2M | 0.4% | 2026-Q1 |
| Elmind Capital, LP | 210,000 | $1M | 0.3% | 2026-Q1 |
| Blue Owl Capital Holdings LP trimmed | 511,177 | $1M | 0.3% | 2026-Q1 |
| DAFNA Capital Management LLC added | 187,353 | $1M | 0.3% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 173,391 | $1M | 0.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 159,069 | $1M | 0.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 156,100 | $1M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 156,001 | $1M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 153,942 | $1M | 0.2% | 2026-Q1 |
| ADAR1 Capital Management, LLC trimmed | 133,686 | $910K | 0.2% | 2026-Q1 |
| LMR Partners LLP added | 320,687 | $811K | 0.2% | 2026-Q1 |
| Trexquant Investment LP new | 104,697 | $713K | 0.2% | 2026-Q1 |
| XTX Topco Ltd added | 93,496 | $637K | 0.1% | 2026-Q1 |
| MORGAN STANLEY trimmed | 86,600 | $590K | 0.1% | 2026-Q1 |
| ARISTEIA CAPITAL, L.L.C. added | 164,511 | $445K | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 65,301 | $445K | 0.1% | 2026-Q1 |
| SEI INVESTMENTS CO new | 60,036 | $409K | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC new | 48,899 | $333K | 0.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. | 104,622 | $275K | 0.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 38,802 | $264K | 0.1% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP new | 36,873 | $251K | 0.1% | 2026-Q1 |
| Quadrature Capital Ltd trimmed | 33,797 | $230K | 0.1% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 32,861 | $224K | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 32,017 | $218K | 0.0% | 2026-Q1 |
| NORTHERN TRUST CORP | 30,085 | $205K | 0.0% | 2026-Q1 |
| ExodusPoint Capital Management, LP new | 26,613 | $181K | 0.0% | 2026-Q1 |
| Pale Fire Capital SE | 24,004 | $163K | 0.0% | 2026-Q1 |
| Jump Financial, LLC added | 21,633 | $147K | 0.0% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 20,999 | $143K | 0.0% | 2026-Q1 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 55,243 | $140K | 0.0% | 2026-Q1 |
| Saba Capital Management, L.P. trimmed | 40,057 | $101K | 0.0% | 2026-Q1 |
| MIRABELLA FINANCIAL SERVICES LLP new | 13,962 | $95K | 0.0% | 2026-Q1 |
| UBS Group AG added | 13,017 | $89K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 12,467 | $85K | 0.0% | 2026-Q1 |
| PFS Partners, LLC | 11,000 | $75K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 10,545 | $72K | 0.0% | 2026-Q1 |
| CSS LLC/IL | 16,895 | $43K | 0.0% | 2026-Q1 |
| Ionic Capital Management LLC new | 16,753 | $42K | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 1,977 | $12K | 0.0% | 2026-Q1 |
| Aquatic Capital Management LLC new | 1,379 | $9K | 0.0% | 2026-Q1 |
| BARCLAYS PLC new | 342 | $2K | 0.0% | 2026-Q1 |
| Caitong International Asset Management Co., Ltd new | 163 | $1K | 0.0% | 2026-Q1 |
| Clear Street Group Inc. | 300 | $759 | 0.0% | 2026-Q1 |
| Farther Finance Advisors, LLC | 100 | $676 | 0.0% | 2026-Q1 |
| CITIGROUP INC trimmed | 99 | $674 | 0.0% | 2026-Q1 |
| SBI Securities Co., Ltd. | 28 | $191 | 0.0% | 2026-Q1 |
| Cormorant Asset Management, LP added | 4,000,000 | $36M | 8.1% | 2025-Q4 stale |
| JANUS HENDERSON GROUP PLC added | 1,900,000 | $17M | 3.9% | 2025-Q4 stale |
| EVENTIDE ASSET MANAGEMENT, LLC new | 950,000 | $9M | 1.9% | 2025-Q4 stale |
| Frazier Life Sciences Management, L.P. new | 1,157,380 | $8M | 1.8% | 2025-Q3 stale |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1,000,000 | $7M | 1.5% | 2025-Q3 stale |
| SPHERA FUNDS MANAGEMENT LTD. | 504,409 | $3M | 0.8% | 2025-Q3 stale |
| ORBIMED ADVISORS LLC trimmed | 677,977 | $2M | 0.6% | 2025-Q2 stale |
| GOLDMAN SACHS GROUP INC added | 147,889 | $1M | 0.3% | 2025-Q4 stale |
| Vivo Capital, LLC trimmed | 285,046 | $844K | 0.2% | 2025-Q4 stale |
| Caption Management, LLC added | 141,904 | $420K | 0.1% | 2025-Q4 stale |
| Calamos Advisors LLC trimmed | 148,290 | $418K | 0.1% | 2025-Q4 stale |
| Virtus Investment Advisers, LLC new | 31,445 | $284K | 0.1% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP new | 17,300 | $156K | 0.0% | 2025-Q4 stale |
| Schonfeld Strategic Advisors LLC trimmed | 16,645 | $150K | 0.0% | 2025-Q4 stale |
| Hudson Bay Capital Management LP | 11,074 | $76K | 0.0% | 2025-Q4 stale |
| TORONTO DOMINION BANK trimmed | 10,000 | $68K | 0.0% | 2025-Q3 stale |
| SECTORAL ASSET MANAGEMENT INC trimmed | 11,700 | $52K | 0.0% | 2025-Q1 stale |
| WOLVERINE ASSET MANAGEMENT LLC trimmed | 16,223 | $48K | 0.0% | 2025-Q4 stale |
| Paloma Partners Management Co new | 10,319 | $38K | 0.0% | 2025-Q2 stale |
| WHITEBOX ADVISORS LLC | 31,000 | $22K | 0.0% | 2025-Q3 stale |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 19,049 | $14K | 0.0% | 2025-Q3 stale |
| MAI Capital Management | 776 | $7K | 0.0% | 2025-Q4 stale |
| NBC SECURITIES, INC. new | 380 | $1K | 0.0% | 2025-Q2 stale |
| BANK OF AMERICA CORP /DE/ trimmed | 300 | $798 | 0.0% | 2025-Q4 stale |
| CLEAR STREET LLC | 300 | $246 | 0.0% | 2025-Q2 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.