248 institutions reported holding $2.03B of Nektar Therapeutics (NKTR) in SEC 13F filings for 2026-03-31. Largest institutional holders: FMR LLC ($309.6M), BVF INC/IL ($184.2M), Two Seas Capital LP ($141.0M), VANGUARD CAPITAL MANAGEMENT LLC ($86.1M), TWO SIGMA INVESTMENTS, LP ($67.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | FMR LLC | $309.6M | 4.3M | Added |
| 2 | BVF INC/IL | $184.2M | 2.6M | Added |
| 3 | Two Seas Capital LP | $141.0M | 2.0M | Added |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $86.1M | 1.2M | New |
| 5 | TWO SIGMA INVESTMENTS, LP | $67.0M | 930,741 | Added |
| 6 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $65.0M | 903,190 | Trimmed |
| 7 | Prosight Management, LP | $52.9M | 735,000 | Added |
| 8 | BlackRock, Inc. | $49.8M | 692,650 | Added |
| 9 | CITADEL ADVISORS LLC | $47.9M | 665,431 | Added |
| 10 | MORGAN STANLEY | $47.4M | 659,387 | Added |
| 11 | ARMISTICE CAPITAL, LLC | $41.6M | 578,000 | Trimmed |
| 12 | Invesco Ltd. | $40.8M | 567,458 | Added |
| 13 | Sofinnova Investments, Inc. | $36.7M | 509,546 | Added |
| 14 | Woodline Partners LP | $29.9M | 415,335 | Added |
| 15 | LORD, ABBETT & CO. LLC | $29.1M | 405,080 | New |
| 16 | MILLENNIUM MANAGEMENT LLC | $29.1M | 404,277 | Trimmed |
| 17 | Bronte Capital Management Pty Ltd. | $28.8M | 400,756 | New |
| 18 | EMERALD ADVISERS, LLC | $28.4M | 394,604 | Added |
| 19 | Qube Research & Technologies Ltd | $28.1M | 390,675 | Added |
| 20 | GEODE CAPITAL MANAGEMENT, LLC | $25.0M | 346,795 | Added |
| 21 | UBS Group AG | $23.0M | 320,172 | Added |
| 22 | GREAT POINT PARTNERS LLC | $22.8M | 316,453 | Added |
| 23 | Vestal Point Capital, LP | $20.5M | 285,000 | New |
| 24 | 22NW, LP | $20.2M | 281,115 | Trimmed |
| 25 | PRIMECAP MANAGEMENT CO/CA/ | $20.1M | 279,150 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31