Tectonic Therapeutic, Inc.
TECX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001681087
In the last 90 days, Tectonic Therapeutic, Inc. insiders filed 0 open-market purchases and 3 sales; 122 institutions reported holding it in 13F filings for Q2 2026, worth $479.9M in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in Tectonic Therapeutic, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 78
- +8 vs. Q4 2024
- Shares held
- 11.2M
- +3.54M (+46.1%) vs. Q4 2024
- Total value
- $198.8M
- −$156.1M (−44.0%) vs. Q4 2024
- New holders
- 30
- 29 more added
- Sold out
- 22
- 12 more reduced
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TECX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 122 | $479.9M |
| Q1 2026 | 111 | $426.8M |
| Q4 2025 | 105 | $288.1M |
| Q3 2025 | 99 | $189.9M |
| Q2 2025 | 82 | $240.7M |
| Q1 2025 | 78 | $198.8M |
| Q4 2024 | 70 | $354.9M |
| Q3 2024 | 53 | $217.4M |
| Q2 2024 | 40 | $88.1M |
| Q1 2024 | 47 | $35.2M |
| Q4 2023 | 45 | $32.2M |
| Q3 2023 | 48 | $39.9M |
| Q2 2023 | 41 | $18.9M |
| Q1 2023 | 48 | $22.8M |
| Q4 2022 | 45 | $14.8M |
| Q3 2022 | 54 | $15.7M |
| Q2 2022 | 64 | $23.8M |
| Q1 2022 | 81 | $38.8M |
| Q4 2021 | 94 | $134.9M |
| Q3 2021 | 101 | $166.5M |
| Q2 2021 | 97 | $287.7M |
| Q1 2021 | 99 | $423.5M |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 2,799,400 | $49.6M | 0.00% | +1,283,065+84.6% | Added |
| Deep Track Capital, LP | 1,401,938 | $24.8M | 0.80% | +1,401,938 | New |
| EcoR1 Capital, LLC | 935,121 | $16.6M | 0.98% | +85,978+10.1% | Added |
| Farallon Capital Management, L.L.C. | 853,050 | $15.1M | 0.08% | +140,000+19.6% | Added |
| 5AM Venture Management, LLC | 511,660 | $9.06M | 3.43% | −85,000−14.2% | Reduced |
| Prosight Management, LP | 398,885 | $7.06M | 2.32% | +398,885 | New |
| Vanguard Group Inc | 361,168 | $6.40M | 0.00% | +1200.0% | Added |
| Bollard Group LLC | 302,953 | $5.37M | 0.14% | +302,953 | New |
| Woodline Partners LP | 302,215 | $5.35M | 0.03% | +172,106+132.3% | Added |
| Ikarian Capital, LLC | 269,090 | $4.77M | 1.55% | +126,762+89.1% | Added |
| Millennium Management LLC | 237,938 | $4.21M | 0.00% | +209,145+726.4% | Added |
| BlackRock, Inc. | 205,528 | $3.64M | 0.00% | +10,469+5.4% | Added |
| Point72 Asset Management, L.P. | 200,000 | $3.54M | 0.01% | +200,000 | New |
| Polygon Management Ltd. | 187,500 | $3.32M | 1.06% | +187,500 | New |
| Tang Capital Management LLC | 179,166 | $3.17M | 0.18% | +100,000+126.3% | Added |
| Morgan Stanley | 164,235 | $2.91M | 0.00% | +146,820+843.1% | Added |
| Renaissance Technologies LLC | 144,302 | $2.56M | 0.00% | +96,129+199.5% | Added |
| Ally Bridge Group (NY) LLC | 132,222 | $2.34M | 2.11% | +132,222 | New |
| Susquehanna International Group, LLP | 106,703 | $1.89M | 0.00% | −59,749−35.9% | Reduced |
| Goldman Sachs Group Inc | 104,793 | $1.86M | 0.00% | +80,483+331.1% | Added |
| Adage Capital Partners GP, L.L.C. | 100,000 | $1.77M | 0.00% | +100,000 | New |
| Baker Bros. Advisors LP | 100,000 | $1.77M | 0.02% | +100,000 | New |
| Citadel Advisors LLC | 93,474 | $1.63M | 0.00% | +93,474 | New |
| Geode Capital Management, LLC | 79,487 | $1.41M | 0.00% | +1,903+2.5% | Added |
| Boothbay Fund Management, LLC | 79,469 | $1.41M | 0.05% | +38,162+92.4% | Added |
| Soleus Capital Management, L.P. | 76,841 | $1.36M | 0.11% | +45,000+141.3% | Added |
| Bank of America Corp | 65,701 | $1.16M | 0.00% | +65,572+50,831.0% | Added |
| ADAR1 Capital Management, LLC | 62,603 | $1.11M | 0.21% | +3,895+6.6% | Added |
| Marshall Wace, LLP | 53,340 | $944.7K | 0.00% | +53,340 | New |
| Squarepoint Ops LLC | 52,897 | $936.8K | 0.00% | +52,897 | New |
| Superstring Capital Management LP | 50,746 | $898.7K | 1.07% | +50,746 | New |
| Jane Street Group, LLC | 47,145 | $834.9K | 0.00% | +17,443+58.7% | Added |
| Qube Research & Technologies Ltd | 47,105 | $834.2K | 0.00% | +17,348+58.3% | Added |
| Aldebaran Capital, LLC | 40,896 | $724.3K | 0.69% | −311−0.8% | Reduced |
| Windmill Hill Asset Management Ltd | 40,023 | $708.8K | 0.22% | +40,023 | New |
| Knott David M Jr | 40,000 | $708.4K | 0.33% | +40,000 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 34,645 | $613.6K | 0.00% | +20,160+139.2% | Added |
| Wells Fargo & Company | 32,771 | $580.4K | 0.00% | +14,258+77.0% | Added |
| Dimensional Fund Advisors LP | 32,161 | $570.2K | 0.00% | +5,897+22.5% | Added |
| State Street Corp | 30,805 | $545.6K | 0.00% | +3,400+12.4% | Added |
| Oakmont Corp | 25,115 | $444.8K | 0.09% | +25,115 | New |
| Jump Financial, LLC | 21,126 | $374.1K | 0.01% | +21,126 | New |
| Wellington Management Group LLP | 19,660 | $348.2K | 0.00% | +19,660 | New |
| Raymond James Financial Inc | 18,735 | $331.8K | 0.00% | +13,796+279.3% | Added |
| Monimus Capital Management, LP | 18,461 | $326.9K | 0.28% | +18,461 | New |
| Cliffwater LLC | 15,369 | $272.2K | 0.07% | +15,369 | New |
| Northern Trust Corp | 14,682 | $260.0K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 14,668 | $259.8K | 0.01% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 14,296 | $253.2K | 0.00% | −3,049−17.6% | Reduced |
| Barclays PLC | 13,710 | $242.8K | 0.00% | −2,264−14.2% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 13,212 | $234.0K | 0.02% | +13,212 | New |
| Price T Rowe Associates Inc | 12,807 | $227.0K | 0.00% | +12,807 | New |
| American Century Companies Inc | 12,057 | $213.5K | 0.00% | +12,057 | New |
| UBS Group AG | 11,227 | $198.8K | 0.00% | +453+4.2% | Added |
| Balyasny Asset Management LLC | 10,192 | $180.5K | 0.00% | −236,808−95.9% | Reduced |
| Clarius Group, LLC | 10,130 | $179.4K | 0.01% | 00.0% | Unchanged |
| Royal Bank of Canada | 7,000 | $124.0K | 0.00% | +7,000 | New |
| Virtus Investment Advisers, Inc. | 3,541 | $62.7K | 0.02% | +3,541 | New |
| China Universal Asset Management Co., Ltd. | 2,959 | $52.4K | 0.00% | −169−5.4% | Reduced |
| BNP Paribas Arbitrage, SA | 2,596 | $46.0K | 0.00% | +2,427+1,436.1% | Added |
| Clearstead Advisors, LLC | 1,500 | $26.6K | 0.00% | −2,333−60.9% | Reduced |
| Nordwand Advisors, LLC | 1,500 | $26.6K | 0.01% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,122 | $19.9K | 0.00% | −122−9.8% | Reduced |
| Tower Research Capital LLC (TRC) | 833 | $14.8K | 0.00% | +617+285.6% | Added |
| Citigroup Inc | 648 | $11.5K | 0.00% | −12,935−95.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 500 | $9.32K | 0.00% | +8+1.6% | Added |
| GF Fund Management Co. Ltd. | 377 | $6.68K | 0.00% | +67+21.6% | Added |
| Caitong International Asset Management Co., Ltd | 369 | $6.54K | 0.00% | +369 | New |
| CWM, LLC | 365 | $6.00K | 0.00% | −166−31.3% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 283 | $5.01K | 0.00% | +283 | New |
| Quest Partners LLC | 232 | $4.11K | 0.00% | +232 | New |
| Rhumbline Advisers | 100 | $1.77K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 87 | $1.54K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 80 | $1.00K | 0.00% | +80 | New |
| US Bancorp | 45 | $797 | 0.00% | −24−34.8% | Reduced |
| National Bank of Canada | 39 | $688 | 0.00% | 00.0% | Unchanged |
| Caldwell Trust Co | 20 | $354 | 0.00% | +20 | New |
| GAMMA Investing LLC | 8 | $142 | 0.00% | +8 | New |
| Vida Ventures Advisors, LLC | 0 | $0 | 0.00% | −1,028,674−100.0% | Sold out |
| Paradigm Biocapital Advisors LP | 0 | $0 | 0.00% | −485,105−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −128,178−100.0% | Sold out |
| Atlas Venture Life Science Advisors, LLC | 0 | $0 | 0.00% | −78,447−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −73,517−100.0% | Sold out |
| Affinity Asset Advisors, LLC | 0 | $0 | 0.00% | −58,331−100.0% | Sold out |
| Acuta Capital Partners, LLC | 0 | $0 | 0.00% | −33,008−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −26,171−100.0% | Sold out |
| Exome Asset Management LLC | 0 | $0 | 0.00% | −26,081−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −25,061−100.0% | Sold out |
| Artia Global Partners LP | 0 | $0 | 0.00% | −16,650−100.0% | Sold out |
| 683 Capital Management, LLC | 0 | $0 | 0.00% | −14,027−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −10,057−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −9,600−100.0% | Sold out |
| StemPoint Capital LP | 0 | $0 | 0.00% | −9,434−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −7,841−100.0% | Sold out |
| Ameriprise Financial Inc | 0 | $0 | 0.00% | −7,516−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −6,768−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −5,400−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −4,711−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −1,533−100.0% | Sold out |