Tectonic TherapeuticTECX
13F holders, Q3 2024 (September 30)53holders +14
17new positions
4sold out
1famous investor
$30.30avg. 13F price*
At the end of Q3 2024, 53 institutions reported holding Tectonic Therapeutic Inc. (TECX) in their 13F filings, up 14 from Q2 2024. 17 opened new positions and 4 sold out. The largest holders were FMR LLC ($37.0M), Vida Ventures Advisors, LLC ($31.2M) and EcoR1 Capital, LLC ($25.7M). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Tectonic Therapeutic Inc.
- CUSIP
- 878972108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 17 | $44.1M |
| Exits | 4 | $276K |
All 13F filers, Q2 2024 → Q3 2024: 2,418,143 shares bought and 666,904 shares sold, net +1,751,239 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 53 holders
| FMR LLC | 0.00% | Add +13.2% | 1,220,138 | $37.0M |
| Vida Ventures Advisors, LLC | 22.49% | New | 1,028,674 | $31.2M |
| EcoR1 Capital, LLC | 0.88% | No change | 849,143 | $25.7M |
| 5AM Venture Management, LLC | 4.05% | No change | 646,524 | $19.6M |
| Farallon Capital Management, L.L.C. | 0.09% | Add +20.7% | 520,397 | $15.8M |
| Vanguard Group Inc. | 0.00% | Add +182.5% | 442,814 | $13.4M |
| Atlas Venture Life Science Advisors, LLC | 1.06% | No change | 378,447 | $11.5M |
| Ikarian Capital, LLC | 2.51% | Add +325.1% | 267,145 | $8.1M |
| BML Capital Management, LLC | 3.78% | Reduce -54.6% | 211,752 | $6.4M |
| Balyasny Asset Management L.P. | 0.01% | New | 180,473 | $5.5M |
| Prosight Management, LP | 1.06% | Add +104.0% | 137,614 | $4.2M |
| ADAR1 Capital Management, LLC | 0.65% | Reduce -64.4% | 127,159 | $3.9M |
| BlackRock, Inc. | 0.00% | — | 123,032 | $3.7M |
| Verition Fund Management LLC | 0.03% | Reduce -18.4% | 114,778 | $3.5M |
| Aisling Capital Management LP | 0.98% | No change | 84,148 | $2.5M |
| Tang Capital Management LLC | 0.17% | No change | 79,166 | $2.4M |
| Geode Capital Management, LLC | 0.00% | Add +147.7% | 76,879 | $2.3M |
| Boothbay Fund Management, LLC | 0.08% | Add +376.2% | 75,644 | $2.3M |
| Walleye Capital LLC | 0.03% | Add +204.2% | 72,962 | $2.2M |
| Woodline Partners LP | 0.02% | New | 65,448 | $2.0M |
| Susquehanna International Group, LLP | 0.00% | New | 62,754 | $1.9M |
| Affinity Asset Advisors, LLC | 0.29% | No change | 58,331 | $1.8M |
| Renaissance Technologies | 0.00% | Reduce -36.1% | 56,897 | $1.7M |
| Aldebaran Capital, LLC | 1.16% | No change | 41,991 | $1.3M |
| Exome Asset Management LLC | 0.74% | Add +12.2% | 36,344 | $1.1M |
| Informed Momentum Co LLC | 0.12% | New | 26,191 | $794K |
| Dimensional Fund Advisors LP | 0.00% | New | 23,855 | $723K |
| Wells Fargo & Company | 0.00% | Add +115.4% | 20,952 | $635K |
| Bridgeway Capital Management, LLC | 0.01% | Add +3.0% | 20,381 | $618K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 15,000 | $455K |
| Acuta Capital Partners, LLC | 0.34% | New | 13,700 | $415K |
| Morgan Stanley | 0.00% | Add +1.0% | 13,321 | $404K |
| Citigroup Inc. | 0.00% | New | 11,800 | $358K |
| State Street Corp. | 0.00% | No change | 11,677 | $354K |
| Two Sigma Investments, LP | 0.00% | Reduce -24.2% | 11,031 | $334K |
| Northern Trust Corp. | 0.00% | New | 9,645 | $292K |
| Acadian Asset Management LLC | 0.00% | Reduce -91.4% | 9,395 | $284K |
| Prelude Capital Management, LLC | 0.02% | New | 7,841 | $238K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 7,702 | $233K |
| Aster Capital Management (DIFC) Ltd | 0.04% | — | 6,768 | $205K |
| Clearstead Advisors, LLC | 0.00% | Reduce -51.9% | 3,916 | $119K |
| Nordwand Advisors, LLC | 0.01% | New | 1,500 | $45K |
| Barclays PLC | 0.00% | No change | 1,441 | $44K |
| Cwm, LLC | 0.00% | New | 531 | $16K |
| Royal Bank of Canada | 0.00% | Reduce -1.3% | 155 | $5K |
| Bank of America Corp. | 0.00% | Reduce -31.4% | 162 | $5K |
| Rhumbline Advisers | 0.00% | No change | 100 | $3K |
| US Bancorp \de | 0.00% | New | 32 | $970 |
| National Bank of Canada | 0.00% | No change | 31 | $939 |
| JPMorgan Chase & Co. | 0.00% | No change | 22 | $667 |
| UBS Group AG | 0.00% | New | 3 | $91 |
| Danske Bank A/S | 0.00% | New | 2 | $61 |
| Group One Trading LLC | 0.00% | No change | 1 | $30 |
"% of holder's portfolio" is TECX's weight in each manager's 13F, not the share of Tectonic Therapeutic Inc. the manager owns.