Institutional Ownership
Tectonic Therapeutic Inc
CUSIP 878972108COMTECXQ1 2026
13D / 13G Filings
23
Schedule 13D/13G on record
Beneficial Filers
13
Distinct reporting persons
Largest Stake
31.5%
Max % of class reported
Institutional Holders
106
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
23 filings · latest Feb 27, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 27, 2026 | Tcg Crossover Gp II, LLC | 13G | 11.0% | 1.17M | SEC |
| 2 | Jan 29, 2026 | Aberdeen Group PLC | 13G | 6.1% | 1.14M | SEC |
| 3 | Nov 14, 2025 | Deep Track Capital, LP | 13G/A | — | — | SEC |
| 4 | Nov 14, 2025 | Ecor1 Capital, LLC | 13G/A | — | 1.0K | SEC |
| 5 | May 15, 2025 | Ecor1 Capital, LLC | 13G/A | 5.0% | — | SEC |
| 6 | May 12, 2025 | Fmr LLC | 13G/A | 15.0% | 2.80M | SEC |
| 7 | Apr 7, 2025 | Timothy A. Springer | 13D/A | 31.5% | — | SEC |
| 8 | Apr 7, 2025 | Terrance Mcguire | 13D/A | 6.3% | — | SEC |
| 9 | Feb 13, 2025 | Bml Investment Partners, L.P. | 13G/A | — | — | SEC |
| 10 | Feb 10, 2025 | Timothy A. Springer | 13D/A | 29.2% | — | SEC |
13 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Tectonic Therapeutic Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Fmr LLC | 2.82M | $87.06M |
| 2 | Tcg Crossover Management, LLC | 1.20M | $37.24M |
| 3 | Aberdeen Group PLC | 1.14M | $35.29M |
| 4 | Blackrock, Inc. | 860.4K | $26.59M |
| 5 | Braidwell LP | 847.2K | $26.19M |
| 6 | First Light Asset Management, LLC | 647.7K | $20.02M |
| 7 | Baker Bros. Advisors LP | 607.8K | $18.79M |
| 8 | 5am Venture Management, LLC | 606.7K | $18.75M |
| 9 | Vestal Point Capital, LP | 328.0K | $10.14M |
| 10 | Kennedy Capital Management LLC | 286.7K | $8.86M |