Who Owns TECTONIC THERAPEUTIC INC (TECX)? -- Institutional Holders (2026-06-30)
132 institutions reported holding $488.4M of TECTONIC THERAPEUTIC INC (TECX) in SEC 13F filings for 2026-06-30. Largest institutional holders: FMR LLC ($97.3M), TCG Crossover Management, LLC ($41.4M), Aberdeen Group plc ($39.3M), BlackRock, Inc. ($29.7M), First Light Asset Management, LLC ($27.5M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | FMR LLC | $97.3M | 2.8M | Added |
| 2 | TCG Crossover Management, LLC | $41.4M | 1.2M | Hold |
| 3 | Aberdeen Group plc | $39.3M | 1.1M | Hold |
| 4 | BlackRock, Inc. | $29.7M | 862,592 | Added |
| 5 | First Light Asset Management, LLC | $27.5M | 800,726 | Added |
| 6 | VANGUARD GROUP INC | $22.7M | 660,378 | Added |
| 7 | BAKER BROS. ADVISORS LP | $20.9M | 607,788 | Hold |
| 8 | 5AM Venture Management, LLC | $20.9M | 606,660 | Hold |
| 9 | BRAIDWELL LP | $20.5M | 596,900 | Trimmed |
| 10 | Vestal Point Capital, LP | $14.6M | 425,000 | Added |
| 11 | Bollard Group LLC | $10.4M | 302,953 | Hold |
| 12 | KENNEDY CAPITAL MANAGEMENT LLC | $9.7M | 282,202 | Trimmed |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | $9.3M | 270,461 | Added |
| 14 | ORBIMED ADVISORS LLC | $7.8M | 226,600 | Hold |
| 15 | STATE STREET CORP | $7.6M | 219,908 | Added |
| 16 | Ikarian Capital, LLC | $7.1M | 205,837 | Added |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $6.5M | 187,700 | Trimmed |
| 18 | D. E. Shaw & Co., Inc. | $6.4M | 186,550 | Added |
| 19 | MARSHALL WACE, LLP | $5.9M | 172,101 | Trimmed |
| 20 | MILLENNIUM MANAGEMENT LLC | $5.7M | 165,525 | Added |
| 21 | Squarepoint Ops LLC | $5.0M | 145,028 | Trimmed |
| 22 | AMERIPRISE FINANCIAL INC | $4.9M | 142,448 | Trimmed |
| 23 | WELLS FARGO & COMPANY/MN | $4.0M | 117,428 | Added |
| 24 | NORTHERN TRUST CORP | $3.9M | 113,904 | Added |
| 25 | CITADEL ADVISORS LLC | $3.7M | 107,393 | Added |
Source: SEC Form 13F filings · as of 2026-06-30