SPTX · Company research
Seaport Therapeutics, Inc. (SPTX): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
60records availableHealthcare
Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| Sofinnova Investments, Inc. | 1631134 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3564871 | 77428998 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| TD Asset Management Inc | 1056053 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 47944 | 1041344 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| AMERIPRISE FINANCIAL INC | 820027 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 131788 | 2862435 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BRAIDWELL LP | 1920938 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 500000 | 10860000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Weiss Asset Management LP | 1357550 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10000 | 217200 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Integrated Wealth Concepts LLC | 1737109 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 32 | 695 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Woodline Partners LP | 1784547 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 586345 | 12735413 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ALPS ADVISORS INC | 1376113 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 54328 | 1180004 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| NORTHERN TRUST CORP | 73124 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31802 | 690739 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| FMR LLC | 315066 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 754905 | 16396537 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Zimmer Partners, LP | 1565854 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10000 | 217200 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ADAR1 Capital Management, LLC | 1940272 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26000 | 564720 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| RA CAPITAL MANAGEMENT, L.P. | 1346824 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 700000 | 15204000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Siren, L.L.C. | 2005245 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1095316 | 23790264 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| GSA CAPITAL PARTNERS LLP | 1362033 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 33178 | 721 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Bellevue Group AG | 1674546 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1100000 | 23892000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Foresite Capital Management VI LLC | 2013341 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1779521 | 38651196 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MILLENNIUM MANAGEMENT LLC | 1273087 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 45337 | 984720 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SEVEN GRAND MANAGERS, LLC | 1909126 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 225000 | 4887000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Pier Capital, LLC | 1310051 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 169985 | 3692074 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| DAFNA Capital Management LLC | 1389933 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 32400 | 703728 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| JPMORGAN CHASE & CO | 19617 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1341920 | 30220038 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| GEODE CAPITAL MANAGEMENT, LLC | 1214717 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 142226 | 3091183 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| CANADA PENSION PLAN INVESTMENT BOARD | 1283718 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1975791 | 42914181 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Burkehill Global Management, LP | 1904549 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25000 | 543000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| JONES FINANCIAL COMPANIES LLLP | 815917 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2256 | 48278 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CITIGROUP INC | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2454 | 53301 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| Aberdeen Group plc | 1716774 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 310355 | 6740911 | — | — | — | Jul 31, 2026 | SEC_13F_DATASET |
| Squarepoint Ops LLC | 1642575 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 24753 | 537635 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1302226 | 28285 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Sixth Street Partners Management Company, L.P. | 1812095 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 97693 | 2121892 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| PRINCIPAL FINANCIAL GROUP INC | 1126328 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 414672 | 9006677 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| GENERAL ATLANTIC, L.P. | 1017645 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6101582 | 132526361 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Ghisallo Capital Management LLC | 1825214 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25000 | 543000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 928047 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 82565 | 1793312 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 884546 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 97693 | 2121892 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CITADEL ADVISORS LLC | 1423053 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 191144 | 4151648 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| XTX Topco Ltd | 1828301 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10983 | 238551 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 221147 | 4803313 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| VANGUARD FIDUCIARY TRUST CO | 933478 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 87772 | 1906408 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 599217 | 13014993 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Vanguard Global Advisers, LLC | 1811242 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7159 | 155493 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 9081 | 197239 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| ARCH Venture Management, LLC | 1274403 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6294951 | 136600437 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| UBS Group AG | 1610520 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 266000 | 5777520 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| State Street Corporation | 93751 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 66650 | 1447638000 | — | — | — | Sep 22, 2026 | SEC_13F_HR |
| Goldman Sachs Group Inc. | 886982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1194858 | 25952316000 | — | — | — | Aug 14, 2026 | SEC_13F_HR |
| Northern Trust Corp | 73124 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31802 | 690739000 | — | — | — | Aug 13, 2026 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3396 | 73761000 | — | — | — | Aug 7, 2026 | SEC_13F_HR |
| MORGAN STANLEY | 895421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 300 | 6516 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Principal Financial Group, Inc. | 1126328 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 414672 | 9006677000 | — | — | — | Aug 4, 2026 | SEC_13F_HR |
| Citigroup Inc. | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2454 | 53301000 | — | — | — | Aug 3, 2026 | SEC_13F_HR |
| ASSETMARK, INC | 1344551 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1431 | 31081 | — | — | — | Jul 30, 2026 | SEC_13F_DATASET |
| JENNISON ASSOCIATES LLC | 53417 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1079669 | 23450411 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| HighTower Advisors, LLC | 1462245 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16666 | 361986 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| PERCEPTIVE ADVISORS LLC | 1224962 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 500000 | 10860000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| GOLDMAN SACHS GROUP INC | 886982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1194858 | 25952316 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Alyeska Investment Group, L.P. | 1453072 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 75000 | 1629000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Pentwater Capital Management LP | 1425851 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 83000 | 1802760 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BARCLAYS PLC | 312069 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 837 | 18180 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.