Tectonic TherapeuticTECX
13F holders, Q2 2025 (June 30)82holders +4
18new positions
14sold out
4famous investors
$19.87avg. 13F price*
At the end of Q2 2025, 82 institutions reported holding Tectonic Therapeutic Inc. (TECX) in their 13F filings, up 4 from Q1 2025. 18 opened new positions and 14 sold out. The largest holders were FMR LLC ($55.7M), Deep Track Capital, LP ($27.9M) and EcoR1 Capital, LLC ($18.6M). 4 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and 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 Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 18 | $5.0M |
| Exits | 14 | $7.3M |
All 13F filers, Q1 2025 → Q2 2025: 1,872,381 shares bought and 987,309 shares sold, net +885,072 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 82 holders
| FMR LLC | 0.00% | Add +0.1% | 2,800,876 | $55.7M |
| Deep Track Capital, LP | 0.90% | No change | 1,401,938 | $27.9M |
| EcoR1 Capital, LLC | 1.10% | No change | 935,121 | $18.6M |
| Farallon Capital Management, L.L.C. | 0.08% | No change | 853,050 | $17.0M |
| BlackRock, Inc. | 0.00% | Add +270.4% | 761,297 | $15.1M |
| Vanguard Group Inc. | 0.00% | Add +61.8% | 584,393 | $11.6M |
| 5AM Venture Management, LLC | 3.91% | No change | 511,660 | $10.2M |
| Prosight Management, LP | 2.14% | Add +10.8% | 442,056 | $8.8M |
| Woodline Partners LP | 0.03% | Add +6.4% | 321,637 | $6.4M |
| Bollard Group LLC | 0.14% | No change | 302,953 | $6.0M |
| Geode Capital Management, LLC | 0.00% | Add +242.5% | 272,257 | $5.4M |
| Point72 Asset Management | 0.01% | Add +15.5% | 231,032 | $4.6M |
| Tetragon Partners GP Ltd | 1.28% | Add +22.0% | 228,832 | $4.5M |
| Tang Capital Management LLC | 0.18% | No change | 179,166 | $3.6M |
| Citadel Advisors | 0.00% | Add +76.6% | 165,046 | $3.3M |
| Ikarian Capital, LLC | 1.08% | Reduce -39.2% | 163,696 | $3.3M |
| Ally Bridge Group (NY) LLC | 2.71% | Add +23.8% | 163,683 | $3.3M |
| Morgan Stanley | 0.00% | Reduce -2.3% | 160,430 | $3.2M |
| State Street Corp. | 0.00% | Add +325.4% | 131,041 | $2.6M |
| Baker Bros. Advisors LP | 0.02% | No change | 100,000 | $2.0M |
| Sectoral Asset Management Inc. | 1.30% | New | 98,970 | $2.0M |
| Renaissance Technologies | 0.00% | Reduce -39.7% | 86,987 | $1.7M |
| Squarepoint Ops LLC | 0.00% | Add +61.4% | 85,369 | $1.7M |
| Northern Trust Corp. | 0.00% | Add +438.6% | 79,074 | $1.6M |
| Superstring Capital Management LP | 1.96% | Add +55.8% | 79,058 | $1.6M |
| Soleus Capital Management, L.P. | 0.11% | No change | 76,841 | $1.5M |
| Millennium Management | 0.00% | Reduce -68.5% | 74,889 | $1.5M |
| Knott David M Jr | 0.67% | Add +85.0% | 74,000 | $1.5M |
| ADAR1 Capital Management, LLC | 0.24% | Add +17.4% | 73,505 | $1.5M |
| Wells Fargo & Company | 0.00% | Add +122.1% | 72,772 | $1.4M |
| Boothbay Fund Management, LLC | 0.03% | Reduce -43.3% | 45,077 | $896K |
| Aldebaran Capital, LLC | 0.79% | Reduce -1.6% | 40,258 | $800K |
| Windmill Hill Asset Management Ltd | 0.22% | No change | 40,023 | $795K |
| Stempoint Capital LP | 0.26% | New | 40,000 | $795K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +3.1% | 35,708 | $710K |
| UBS Group AG | 0.00% | Add +205.0% | 34,238 | $680K |
| Charles Schwab Investment Management Inc. | 0.00% | New | 32,365 | $643K |
| Wellington Management Group LLP | 0.00% | Add +45.2% | 28,545 | $567K |
| Bank of New York Mellon Corp | 0.00% | New | 25,258 | $502K |
| Monimus Capital Management, LP | 0.38% | Add +29.4% | 23,894 | $475K |
| Barclays PLC | 0.00% | Add +59.7% | 21,891 | $435K |
| Raymond James Financial Inc. | 0.00% | Add +15.0% | 21,544 | $428K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -39.4% | 19,498 | $387K |
| Susquehanna International Group, LLP | 0.00% | Reduce -82.5% | 18,707 | $372K |
| T. Rowe Price Associates Inc. | 0.00% | Add +43.1% | 18,322 | $365K |
| BNP Paribas Financial Markets | 0.00% | Add +528.4% | 16,314 | $324K |
| Rhumbline Advisers | 0.00% | Add +15875.0% | 15,975 | $317K |
| Nuveen, LLC | 0.00% | New | 14,304 | $284K |
| Bridgeway Capital Management, LLC | 0.01% | Reduce -15.6% | 12,383 | $246K |
| Marshall Wace, LLP | 0.00% | Reduce -80.0% | 10,678 | $212K |
| Monaco Asset Management SAM | 0.08% | New | 10,500 | $209K |
| Clarius Group, LLC | 0.01% | No change | 10,130 | $201K |
| Deutsche Bank AG | 0.00% | New | 8,201 | $163K |
| Bank of America Corp. | 0.00% | Reduce -89.5% | 6,922 | $138K |
| MetLife Investment Management, LLC | 0.00% | New | 6,724 | $134K |
| JPMorgan Chase & Co. | 0.00% | Add +483.6% | 6,548 | $130K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | New | 6,012 | $119K |
| New York State Common Retirement Fund | 0.00% | New | 5,000 | $99K |
| Virtus Investment Advisers, LLC | 0.03% | Add +18.3% | 4,190 | $83K |
| Citigroup Inc. | 0.00% | Add +529.5% | 4,079 | $81K |
| China Universal Asset Management Co., Ltd. | 0.01% | Add +26.7% | 3,750 | $75K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | New | 2,638 | $52K |
| AlphaQuest LLC | 0.00% | Add +919.4% | 2,365 | $47K |
| Clearstead Advisors, LLC | 0.00% | No change | 1,500 | $30K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +49.7% | 1,247 | $25K |
| Ameritas Investment Partners, Inc. | 0.00% | New | 1,122 | $22K |
| Legal & General Group Plc | 0.00% | New | 1,050 | $21K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Add +44.2% | 721 | $14K |
| Caitong International Asset Management Co., Ltd | 0.01% | Add +94.8% | 719 | $14K |
| Royal Bank of Canada | 0.00% | Reduce -90.3% | 682 | $14K |
| GF Fund Management Co. LTD. | 0.00% | No change | 377 | $7K |
| Amalgamated Bank | 0.00% | New | 375 | $7K |
| Cwm, LLC | 0.00% | No change | 365 | $7K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | No change | 283 | $6K |
| Sterling Capital Management LLC | 0.00% | New | 251 | $5K |
| Vermillion & White Wealth Management Group, LLC | 0.00% | New | 107 | $2K |
| Daiwa Securities Group Inc. | 0.00% | No change | 80 | $2K |
| National Bank of Canada | 0.00% | No change | 39 | $773 |
| US Bancorp \de | 0.00% | Reduce -17.8% | 37 | $735 |
| Rise Advisors, LLC | 0.00% | New | 28 | $556 |
| Allworth Financial LP | 0.00% | New | 26 | $517 |
| Caldwell Trust Co | 0.00% | No change | 20 | $397 |
"% of holder's portfolio" is TECX's weight in each manager's 13F, not the share of Tectonic Therapeutic Inc. the manager owns.