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Institutional Ownership · SEC Form 13F

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.

73
Institutional holders
61,199,481
Shares held (tracked funds)

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).

FundSharesReported value% of valueQuarter
FCPM III SERVICES B.V.9,632,561$66M14.8%2026-Q1
PERCEPTIVE ADVISORS LLC trimmed5,827,506$40M8.9%2026-Q1
Siren, L.L.C. added5,253,159$36M8.1%2026-Q1
Venrock Adviser, LLC4,771,414$32M7.3%2026-Q1
Deep Track Capital, LP4,377,572$30M6.7%2026-Q1
BRAIDWELL LP trimmed2,456,870$17M3.8%2026-Q1
Nextech Invest, Ltd. added2,324,943$16M3.6%2026-Q1
Vestal Point Capital, LP added2,165,000$15M3.3%2026-Q1
MPM BIOIMPACT LLC added1,845,373$13M2.8%2026-Q1
Kynam Capital Management, LP trimmed1,356,843$9M2.1%2026-Q1
FRANKLIN RESOURCES INC trimmed1,314,993$9M2.0%2026-Q1
Polar Capital Holdings Plc added1,224,071$8M1.9%2026-Q1
BALYASNY ASSET MANAGEMENT L.P. new1,148,997$8M1.8%2026-Q1
MILLENNIUM MANAGEMENT LLC trimmed959,681$7M1.5%2026-Q1
Omega Fund Management, LLC876,357$6M1.3%2026-Q1
SR One Capital Management, LP747,750$5M1.1%2026-Q1
Affinity Asset Advisors, LLC trimmed610,370$4M0.9%2026-Q1
Eversept Partners, LP added510,543$3M0.8%2026-Q1
KENNEDY CAPITAL MANAGEMENT LLC added425,781$3M0.7%2026-Q1
BVF INC/IL945,402$2M0.6%2026-Q1
Privium Fund Management B.V.352,087$2M0.5%2026-Q1
MARSHALL WACE, LLP343,928$2M0.5%2026-Q1
Monashee Investment Management LLC added320,000$2M0.5%2026-Q1
Woodline Partners LP250,000$2M0.4%2026-Q1
Birchview Capital, LP new250,000$2M0.4%2026-Q1
FMR LLC new232,200$2M0.4%2026-Q1
Elmind Capital, LP210,000$1M0.3%2026-Q1
Blue Owl Capital Holdings LP trimmed511,177$1M0.3%2026-Q1
DAFNA Capital Management LLC added187,353$1M0.3%2026-Q1
Point72 Asset Management, L.P. trimmed173,391$1M0.3%2026-Q1
TWO SIGMA INVESTMENTS, LP trimmed159,069$1M0.2%2026-Q1
RENAISSANCE TECHNOLOGIES LLC added156,100$1M0.2%2026-Q1
JANE STREET GROUP, LLC added156,001$1M0.2%2026-Q1
CITADEL ADVISORS LLC added153,942$1M0.2%2026-Q1
ADAR1 Capital Management, LLC trimmed133,686$910K0.2%2026-Q1
LMR Partners LLP added320,687$811K0.2%2026-Q1
Trexquant Investment LP new104,697$713K0.2%2026-Q1
XTX Topco Ltd added93,496$637K0.1%2026-Q1
MORGAN STANLEY trimmed86,600$590K0.1%2026-Q1
ARISTEIA CAPITAL, L.L.C. added164,511$445K0.1%2026-Q1
BNP PARIBAS FINANCIAL MARKETS added65,301$445K0.1%2026-Q1
SEI INVESTMENTS CO new60,036$409K0.1%2026-Q1
Squarepoint Ops LLC new48,899$333K0.1%2026-Q1
D. E. Shaw & Co., Inc.104,622$275K0.1%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added38,802$264K0.1%2026-Q1
DIMENSIONAL FUND ADVISORS LP new36,873$251K0.1%2026-Q1
Quadrature Capital Ltd trimmed33,797$230K0.1%2026-Q1
AMERICAN CENTURY COMPANIES INC added32,861$224K0.1%2026-Q1
HRT FINANCIAL LP trimmed32,017$218K0.0%2026-Q1
NORTHERN TRUST CORP30,085$205K0.0%2026-Q1
ExodusPoint Capital Management, LP new26,613$181K0.0%2026-Q1
Pale Fire Capital SE24,004$163K0.0%2026-Q1
Jump Financial, LLC added21,633$147K0.0%2026-Q1
RAYMOND JAMES FINANCIAL INC added20,999$143K0.0%2026-Q1
TENOR CAPITAL MANAGEMENT Co., L.P.55,243$140K0.0%2026-Q1
Saba Capital Management, L.P. trimmed40,057$101K0.0%2026-Q1
MIRABELLA FINANCIAL SERVICES LLP new13,962$95K0.0%2026-Q1
UBS Group AG added13,017$89K0.0%2026-Q1
WELLS FARGO & COMPANY/MN added12,467$85K0.0%2026-Q1
PFS Partners, LLC11,000$75K0.0%2026-Q1
ROYAL BANK OF CANADA added10,545$72K0.0%2026-Q1
CSS LLC/IL16,895$43K0.0%2026-Q1
Ionic Capital Management LLC new16,753$42K0.0%2026-Q1
JPMORGAN CHASE & CO trimmed1,977$12K0.0%2026-Q1
Aquatic Capital Management LLC new1,379$9K0.0%2026-Q1
BARCLAYS PLC new342$2K0.0%2026-Q1
Caitong International Asset Management Co., Ltd new163$1K0.0%2026-Q1
Clear Street Group Inc.300$7590.0%2026-Q1
Farther Finance Advisors, LLC100$6760.0%2026-Q1
CITIGROUP INC trimmed99$6740.0%2026-Q1
SBI Securities Co., Ltd.28$1910.0%2026-Q1
Cormorant Asset Management, LP added4,000,000$36M8.1%2025-Q4 stale
JANUS HENDERSON GROUP PLC added1,900,000$17M3.9%2025-Q4 stale
EVENTIDE ASSET MANAGEMENT, LLC new950,000$9M1.9%2025-Q4 stale
Frazier Life Sciences Management, L.P. new1,157,380$8M1.8%2025-Q3 stale
ADAGE CAPITAL PARTNERS GP, L.L.C.1,000,000$7M1.5%2025-Q3 stale
SPHERA FUNDS MANAGEMENT LTD.504,409$3M0.8%2025-Q3 stale
ORBIMED ADVISORS LLC trimmed677,977$2M0.6%2025-Q2 stale
GOLDMAN SACHS GROUP INC added147,889$1M0.3%2025-Q4 stale
Vivo Capital, LLC trimmed285,046$844K0.2%2025-Q4 stale
Caption Management, LLC added141,904$420K0.1%2025-Q4 stale
Calamos Advisors LLC trimmed148,290$418K0.1%2025-Q4 stale
Virtus Investment Advisers, LLC new31,445$284K0.1%2025-Q4 stale
TWO SIGMA ADVISERS, LP new17,300$156K0.0%2025-Q4 stale
Schonfeld Strategic Advisors LLC trimmed16,645$150K0.0%2025-Q4 stale
Hudson Bay Capital Management LP11,074$76K0.0%2025-Q4 stale
TORONTO DOMINION BANK trimmed10,000$68K0.0%2025-Q3 stale
SECTORAL ASSET MANAGEMENT INC trimmed11,700$52K0.0%2025-Q1 stale
WOLVERINE ASSET MANAGEMENT LLC trimmed16,223$48K0.0%2025-Q4 stale
Paloma Partners Management Co new10,319$38K0.0%2025-Q2 stale
WHITEBOX ADVISORS LLC31,000$22K0.0%2025-Q3 stale
STATE OF WISCONSIN INVESTMENT BOARD trimmed19,049$14K0.0%2025-Q3 stale
MAI Capital Management776$7K0.0%2025-Q4 stale
NBC SECURITIES, INC. new380$1K0.0%2025-Q2 stale
BANK OF AMERICA CORP /DE/ trimmed300$7980.0%2025-Q4 stale
CLEAR STREET LLC300$2460.0%2025-Q2 stale
CONCOURSE FINANCIAL GROUP SECURITIES, INC.00.0%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.

HoldersTotal shares

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.

Learn how to read institutional ownership