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 2 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 |
|---|---|---|---|---|---|
| GAMMA Investing LLC | 8 | $142 | 0.00% | +8 | New |
| Caldwell Trust Co | 20 | $354 | 0.00% | +20 | New |
| National Bank of Canada | 39 | $688 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 45 | $797 | 0.00% | −24−34.8% | Reduced |
| Daiwa Securities Group Inc. | 80 | $1.00K | 0.00% | +80 | New |
| SBI Securities Co., Ltd. | 87 | $1.54K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 100 | $1.77K | 0.00% | 00.0% | Unchanged |
| Quest Partners LLC | 232 | $4.11K | 0.00% | +232 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 283 | $5.01K | 0.00% | +283 | New |
| CWM, LLC | 365 | $6.00K | 0.00% | −166−31.3% | Reduced |
| Caitong International Asset Management Co., Ltd | 369 | $6.54K | 0.00% | +369 | New |
| GF Fund Management Co. Ltd. | 377 | $6.68K | 0.00% | +67+21.6% | Added |
| Mirae Asset Global Investments Co., Ltd. | 500 | $9.32K | 0.00% | +8+1.6% | Added |
| Citigroup Inc | 648 | $11.5K | 0.00% | −12,935−95.2% | Reduced |
| Tower Research Capital LLC (TRC) | 833 | $14.8K | 0.00% | +617+285.6% | Added |
| JPMorgan Chase & Co | 1,122 | $19.9K | 0.00% | −122−9.8% | Reduced |
| 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 |
| BNP Paribas Arbitrage, SA | 2,596 | $46.0K | 0.00% | +2,427+1,436.1% | Added |
| China Universal Asset Management Co., Ltd. | 2,959 | $52.4K | 0.00% | −169−5.4% | Reduced |
| Virtus Investment Advisers, Inc. | 3,541 | $62.7K | 0.02% | +3,541 | New |
| Royal Bank of Canada | 7,000 | $124.0K | 0.00% | +7,000 | New |
| Clarius Group, LLC | 10,130 | $179.4K | 0.01% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 10,192 | $180.5K | 0.00% | −236,808−95.9% | Reduced |
| UBS Group AG | 11,227 | $198.8K | 0.00% | +453+4.2% | Added |
| American Century Companies Inc | 12,057 | $213.5K | 0.00% | +12,057 | New |
| Price T Rowe Associates Inc | 12,807 | $227.0K | 0.00% | +12,807 | New |
| Y-Intercept (Hong Kong) Ltd | 13,212 | $234.0K | 0.02% | +13,212 | New |
| Barclays PLC | 13,710 | $242.8K | 0.00% | −2,264−14.2% | Reduced |
| Schonfeld Strategic Advisors LLC | 14,296 | $253.2K | 0.00% | −3,049−17.6% | Reduced |
| Bridgeway Capital Management, LLC | 14,668 | $259.8K | 0.01% | 00.0% | Unchanged |
| Northern Trust Corp | 14,682 | $260.0K | 0.00% | 00.0% | Unchanged |
| Cliffwater LLC | 15,369 | $272.2K | 0.07% | +15,369 | New |
| Monimus Capital Management, LP | 18,461 | $326.9K | 0.28% | +18,461 | New |
| Raymond James Financial Inc | 18,735 | $331.8K | 0.00% | +13,796+279.3% | Added |
| Wellington Management Group LLP | 19,660 | $348.2K | 0.00% | +19,660 | New |
| Jump Financial, LLC | 21,126 | $374.1K | 0.01% | +21,126 | New |
| Oakmont Corp | 25,115 | $444.8K | 0.09% | +25,115 | New |
| State Street Corp | 30,805 | $545.6K | 0.00% | +3,400+12.4% | Added |
| Dimensional Fund Advisors LP | 32,161 | $570.2K | 0.00% | +5,897+22.5% | Added |
| Wells Fargo & Company | 32,771 | $580.4K | 0.00% | +14,258+77.0% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 34,645 | $613.6K | 0.00% | +20,160+139.2% | Added |
| Knott David M Jr | 40,000 | $708.4K | 0.33% | +40,000 | New |
| Windmill Hill Asset Management Ltd | 40,023 | $708.8K | 0.22% | +40,023 | New |
| Aldebaran Capital, LLC | 40,896 | $724.3K | 0.69% | −311−0.8% | Reduced |
| Qube Research & Technologies Ltd | 47,105 | $834.2K | 0.00% | +17,348+58.3% | Added |
| Jane Street Group, LLC | 47,145 | $834.9K | 0.00% | +17,443+58.7% | Added |
| Superstring Capital Management LP | 50,746 | $898.7K | 1.07% | +50,746 | New |
| Squarepoint Ops LLC | 52,897 | $936.8K | 0.00% | +52,897 | New |
| Marshall Wace, LLP | 53,340 | $944.7K | 0.00% | +53,340 | New |
| ADAR1 Capital Management, LLC | 62,603 | $1.11M | 0.21% | +3,895+6.6% | Added |
| Bank of America Corp | 65,701 | $1.16M | 0.00% | +65,572+50,831.0% | Added |
| Soleus Capital Management, L.P. | 76,841 | $1.36M | 0.11% | +45,000+141.3% | Added |
| Boothbay Fund Management, LLC | 79,469 | $1.41M | 0.05% | +38,162+92.4% | Added |
| Geode Capital Management, LLC | 79,487 | $1.41M | 0.00% | +1,903+2.5% | Added |
| Citadel Advisors LLC | 93,474 | $1.63M | 0.00% | +93,474 | New |
| 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 |
| Goldman Sachs Group Inc | 104,793 | $1.86M | 0.00% | +80,483+331.1% | Added |
| Susquehanna International Group, LLP | 106,703 | $1.89M | 0.00% | −59,749−35.9% | Reduced |
| Ally Bridge Group (NY) LLC | 132,222 | $2.34M | 2.11% | +132,222 | New |
| Renaissance Technologies LLC | 144,302 | $2.56M | 0.00% | +96,129+199.5% | Added |
| Morgan Stanley | 164,235 | $2.91M | 0.00% | +146,820+843.1% | Added |
| Tang Capital Management LLC | 179,166 | $3.17M | 0.18% | +100,000+126.3% | Added |
| Polygon Management Ltd. | 187,500 | $3.32M | 1.06% | +187,500 | New |
| Point72 Asset Management, L.P. | 200,000 | $3.54M | 0.01% | +200,000 | New |
| BlackRock, Inc. | 205,528 | $3.64M | 0.00% | +10,469+5.4% | Added |
| Millennium Management LLC | 237,938 | $4.21M | 0.00% | +209,145+726.4% | Added |
| Ikarian Capital, LLC | 269,090 | $4.77M | 1.55% | +126,762+89.1% | Added |
| Woodline Partners LP | 302,215 | $5.35M | 0.03% | +172,106+132.3% | Added |
| Bollard Group LLC | 302,953 | $5.37M | 0.14% | +302,953 | New |
| Vanguard Group Inc | 361,168 | $6.40M | 0.00% | +1200.0% | Added |
| Prosight Management, LP | 398,885 | $7.06M | 2.32% | +398,885 | New |
| 5AM Venture Management, LLC | 511,660 | $9.06M | 3.43% | −85,000−14.2% | Reduced |
| Farallon Capital Management, L.L.C. | 853,050 | $15.1M | 0.08% | +140,000+19.6% | Added |
| EcoR1 Capital, LLC | 935,121 | $16.6M | 0.98% | +85,978+10.1% | Added |
| Deep Track Capital, LP | 1,401,938 | $24.8M | 0.80% | +1,401,938 | New |
| FMR LLC | 2,799,400 | $49.6M | 0.00% | +1,283,065+84.6% | Added |
| 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 |