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, Q2 2025
Institutional positions in Tectonic Therapeutic, Inc. as of Jun 30, 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
- 82
- +4 vs. Q1 2025
- Shares held
- 12.1M
- +885.1K (+7.9%) vs. Q1 2025
- Total value
- $240.7M
- +$41.9M (+21.1%) vs. Q1 2025
- New holders
- 18
- 34 more added
- Sold out
- 14
- 13 more reduced
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 2,800,876 | $55.7M | 0.00% | +1,476+0.1% | Added |
| Deep Track Capital, LP | 1,401,938 | $27.9M | 0.90% | 00.0% | Unchanged |
| EcoR1 Capital, LLC | 935,121 | $18.6M | 1.10% | 00.0% | Unchanged |
| Farallon Capital Management, L.L.C. | 853,050 | $17.0M | 0.08% | 00.0% | Unchanged |
| BlackRock, Inc. | 761,297 | $15.1M | 0.00% | +555,769+270.4% | Added |
| Vanguard Group Inc | 584,393 | $11.6M | 0.00% | +223,225+61.8% | Added |
| 5AM Venture Management, LLC | 511,660 | $10.2M | 3.91% | 00.0% | Unchanged |
| Prosight Management, LP | 442,056 | $8.78M | 2.14% | +43,171+10.8% | Added |
| Woodline Partners LP | 321,637 | $6.39M | 0.03% | +19,422+6.4% | Added |
| Bollard Group LLC | 302,953 | $6.02M | 0.14% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 272,257 | $5.41M | 0.00% | +192,770+242.5% | Added |
| Point72 Asset Management, L.P. | 231,032 | $4.59M | 0.01% | +31,032+15.5% | Added |
| Polygon Management Ltd. | 228,832 | $4.55M | 0.82% | +41,332+22.0% | Added |
| Tang Capital Management LLC | 179,166 | $3.56M | 0.18% | 00.0% | Unchanged |
| Citadel Advisors LLC | 165,046 | $3.28M | 0.00% | +71,572+76.6% | Added |
| Ikarian Capital, LLC | 163,696 | $3.25M | 1.08% | −105,394−39.2% | Reduced |
| Ally Bridge Group (NY) LLC | 163,683 | $3.25M | 2.71% | +31,461+23.8% | Added |
| Morgan Stanley | 160,430 | $3.19M | 0.00% | −3,805−2.3% | Reduced |
| State Street Corp | 131,041 | $2.60M | 0.00% | +100,236+325.4% | Added |
| Baker Bros. Advisors LP | 100,000 | $1.99M | 0.02% | 00.0% | Unchanged |
| Sectoral Asset Management Inc | 98,970 | $1.97M | 1.30% | +98,970 | New |
| Renaissance Technologies LLC | 86,987 | $1.73M | 0.00% | −57,315−39.7% | Reduced |
| Squarepoint Ops LLC | 85,369 | $1.70M | 0.00% | +32,472+61.4% | Added |
| Northern Trust Corp | 79,074 | $1.57M | 0.00% | +64,392+438.6% | Added |
| Superstring Capital Management LP | 79,058 | $1.57M | 1.96% | +28,312+55.8% | Added |
| Soleus Capital Management, L.P. | 76,841 | $1.53M | 0.11% | 00.0% | Unchanged |
| Millennium Management LLC | 74,889 | $1.49M | 0.00% | −163,049−68.5% | Reduced |
| Knott David M Jr | 74,000 | $1.47M | 0.67% | +34,000+85.0% | Added |
| ADAR1 Capital Management, LLC | 73,505 | $1.46M | 0.24% | +10,902+17.4% | Added |
| Wells Fargo & Company | 72,772 | $1.45M | 0.00% | +40,001+122.1% | Added |
| Boothbay Fund Management, LLC | 45,077 | $895.7K | 0.03% | −34,392−43.3% | Reduced |
| Aldebaran Capital, LLC | 40,258 | $799.9K | 0.79% | −638−1.6% | Reduced |
| Windmill Hill Asset Management Ltd | 40,023 | $795.3K | 0.22% | 00.0% | Unchanged |
| StemPoint Capital LP | 40,000 | $794.8K | 0.26% | +40,000 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 35,708 | $709.5K | 0.00% | +1,063+3.1% | Added |
| UBS Group AG | 34,238 | $680.3K | 0.00% | +23,011+205.0% | Added |
| Charles Schwab Investment Management Inc | 32,365 | $643.1K | 0.00% | +32,365 | New |
| Wellington Management Group LLP | 28,545 | $567.2K | 0.00% | +8,885+45.2% | Added |
| Bank of New York Mellon Corp | 25,258 | $501.9K | 0.00% | +25,258 | New |
| Monimus Capital Management, LP | 23,894 | $474.8K | 0.38% | +5,433+29.4% | Added |
| Barclays PLC | 21,891 | $435.0K | 0.00% | +8,181+59.7% | Added |
| Raymond James Financial Inc | 21,544 | $428.1K | 0.00% | +2,809+15.0% | Added |
| Dimensional Fund Advisors LP | 19,498 | $387.4K | 0.00% | −12,663−39.4% | Reduced |
| Susquehanna International Group, LLP | 18,707 | $371.7K | 0.00% | −87,996−82.5% | Reduced |
| Price T Rowe Associates Inc | 18,322 | $365.0K | 0.00% | +5,515+43.1% | Added |
| BNP Paribas Arbitrage, SA | 16,314 | $324.2K | 0.00% | +13,718+528.4% | Added |
| Rhumbline Advisers | 15,975 | $317.4K | 0.00% | +15,875+15,875.0% | Added |
| Nuveen, LLC | 14,304 | $284.2K | 0.00% | +14,304 | New |
| Bridgeway Capital Management, LLC | 12,383 | $246.1K | 0.01% | −2,285−15.6% | Reduced |
| Marshall Wace, LLP | 10,678 | $212.2K | 0.00% | −42,662−80.0% | Reduced |
| Monaco Asset Management SAM | 10,500 | $208.6K | 0.08% | +10,500 | New |
| Clarius Group, LLC | 10,130 | $201.3K | 0.01% | 00.0% | Unchanged |
| Deutsche Bank AG | 8,201 | $163.0K | 0.00% | +8,201 | New |
| Bank of America Corp | 6,922 | $137.5K | 0.00% | −58,779−89.5% | Reduced |
| MetLife Investment Management | 6,724 | $133.6K | 0.00% | +6,724 | New |
| JPMorgan Chase & Co | 6,548 | $130.1K | 0.00% | +5,426+483.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 6,012 | $119.5K | 0.00% | +6,012 | New |
| New York State Common Retirement Fund | 5,000 | $99.3K | 0.00% | +5,000 | New |
| Virtus Investment Advisers, Inc. | 4,190 | $83.3K | 0.03% | +649+18.3% | Added |
| Citigroup Inc | 4,079 | $81.0K | 0.00% | +3,431+529.5% | Added |
| China Universal Asset Management Co., Ltd. | 3,750 | $74.5K | 0.01% | +791+26.7% | Added |
| Police & Firemen's Retirement System of New Jersey | 2,638 | $52.4K | 0.00% | +2,638 | New |
| Quest Partners LLC | 2,365 | $47.0K | 0.00% | +2,133+919.4% | Added |
| Clearstead Advisors, LLC | 1,500 | $29.8K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,247 | $24.8K | 0.00% | +414+49.7% | Added |
| Ameritas Investment Partners, Inc. | 1,122 | $22.3K | 0.00% | +1,122 | New |
| Legal & General Group Plc | 1,050 | $20.9K | 0.00% | +1,050 | New |
| Mirae Asset Global Investments Co., Ltd. | 721 | $14.3K | 0.00% | +221+44.2% | Added |
| Caitong International Asset Management Co., Ltd | 719 | $14.3K | 0.01% | +350+94.9% | Added |
| Royal Bank of Canada | 682 | $14.0K | 0.00% | −6,318−90.3% | Reduced |
| GF Fund Management Co. Ltd. | 377 | $7.49K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 365 | $7.00K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 375 | $7.00K | 0.00% | +375 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 283 | $5.62K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 251 | $4.99K | 0.00% | +251 | New |
| Vermillion & White Wealth Management Group, LLC | 107 | $2.13K | 0.00% | +107 | New |
| Daiwa Securities Group Inc. | 80 | $2.00K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 39 | $773 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 37 | $735 | 0.00% | −8−17.8% | Reduced |
| Rise Advisors, LLC | 28 | $556 | 0.00% | +28 | New |
| Allworth Financial LP | 26 | $517 | 0.00% | +26 | New |
| Caldwell Trust Co | 20 | $397 | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −104,793−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −47,145−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −47,105−100.0% | Sold out |
| Oakmont Corp | 0 | $0 | 0.00% | −25,115−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −21,126−100.0% | Sold out |
| Cliffwater LLC | 0 | $0 | 0.00% | −15,369−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −14,296−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −13,212−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −12,057−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −10,192−100.0% | Sold out |
| Nordwand Advisors, LLC | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| SBI Securities Co., Ltd. | 0 | $0 | 0.00% | −87−100.0% | Sold out |
| GAMMA Investing LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |