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, Q4 2025
Institutional positions in Tectonic Therapeutic, Inc. as of Dec 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
- 105
- +7 vs. Q3 2025
- Shares held
- 13.8M
- +1.71M (+14.1%) vs. Q3 2025
- Total value
- $288.1M
- +$98.2M (+51.7%) vs. Q3 2025
- New holders
- 30
- 35 more added
- Sold out
- 23
- 24 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Advisor Group Holdings, Inc. | 1 | $21 | 0.00% | −1−50.0% | Reduced |
| EverSource Wealth Advisors, LLC | 2 | $42 | 0.00% | +2 | New |
| Sunbelt Securities, Inc. | 5 | $104 | 0.00% | +5 | New |
| True Wealth Design, LLC | 5 | $105 | 0.00% | +5 | New |
| Global Wealth Strategies & Associates | 18 | $375 | 0.00% | 00.0% | Unchanged |
| Caldwell Trust Co | 20 | $417 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 29 | $605 | 0.00% | +21+262.5% | Added |
| Optima Capital LLC | 31 | $647 | 0.00% | +31 | New |
| US Bancorp | 37 | $772 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 62 | $1.29K | 0.00% | +62 | New |
| Daiwa Securities Group Inc. | 80 | $2.00K | 0.00% | 00.0% | Unchanged |
| Vermillion & White Wealth Management Group, LLC | 107 | $2.23K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 164 | $3.42K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 173 | $3.61K | 0.00% | +173 | New |
| Amalgamated Bank | 345 | $7.00K | 0.00% | −30−8.0% | Reduced |
| GF Fund Management Co. Ltd. | 367 | $7.66K | 0.00% | −36−8.9% | Reduced |
| Farther Finance Advisors, LLC | 373 | $7.78K | 0.00% | +373 | New |
| CWM, LLC | 466 | $10.0K | 0.00% | +82+21.4% | Added |
| Royal Bank of Canada | 521 | $10.0K | 0.00% | +235+82.2% | Added |
| Federation des caisses Desjardins du Quebec | 500 | $10.4K | 0.00% | −500−50.0% | Reduced |
| Sterling Capital Management LLC | 537 | $11.2K | 0.00% | −96−15.2% | Reduced |
| Group One Trading, L.P. | 541 | $11.3K | 0.00% | +368+212.7% | Added |
| HighMark Wealth Management LLC | 587 | $12.2K | 0.00% | +587 | New |
| California State Teachers Retirement System | 676 | $14.1K | 0.00% | −8−1.2% | Reduced |
| Tower Research Capital LLC (TRC) | 752 | $15.7K | 0.00% | −713−48.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 909 | $19.0K | 0.00% | +186+25.7% | Added |
| Russell Investments Group, Ltd. | 929 | $19.4K | 0.00% | +19+2.1% | Added |
| Citigroup Inc | 1,033 | $21.5K | 0.00% | −125−10.8% | Reduced |
| Legal & General Group Plc | 1,050 | $21.9K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,122 | $23.4K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 2,638 | $55.0K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 2,819 | $58.8K | 0.00% | +397+16.4% | Added |
| New York State Common Retirement Fund | 5,000 | $104.3K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 5,000 | $104.3K | 0.00% | +5,000 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 5,079 | $105.9K | 0.00% | −55−1.1% | Reduced |
| Los Angeles Capital Management LLC | 6,410 | $112.8K | 0.00% | +6,410 | New |
| JPMorgan Chase & Co | 5,779 | $120.5K | 0.00% | −145−2.4% | Reduced |
| China Universal Asset Management Co., Ltd. | 6,050 | $126.2K | 0.01% | −830−12.1% | Reduced |
| Canada Pension Plan Investment Board | 6,300 | $131.4K | 0.00% | +6,300 | New |
| AlphaCentric Advisors LLC | 6,476 | $135.1K | 0.13% | +6,476 | New |
| Clearstead Advisors, LLC | 6,500 | $135.6K | 0.00% | +5,000+333.3% | Added |
| MetLife Investment Management | 6,724 | $140.3K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 7,589 | $158.3K | 0.00% | +7,589 | New |
| Simplex Trading, LLC | 9,142 | $190.7K | 0.01% | +8,374+1,090.4% | Added |
| Bank of America Corp | 9,225 | $192.4K | 0.00% | +2,860+44.9% | Added |
| Quadrature Capital Ltd | 10,014 | $208.9K | 0.00% | −16,258−61.9% | Reduced |
| Dimensional Fund Advisors LP | 10,075 | $210.2K | 0.00% | +10,075 | New |
| Clarius Group, LLC | 10,130 | $211.3K | 0.01% | 00.0% | Unchanged |
| Marex Group plc | 12,501 | $260.8K | 0.00% | +12,501 | New |
| Palumbo Wealth Management LLC | 13,046 | $272.1K | 0.07% | +13,046 | New |
| Virtus Investment Advisers, Inc. | 13,462 | $280.8K | 0.08% | +8,391+165.5% | Added |
| Rhumbline Advisers | 14,196 | $296.1K | 0.00% | −1,797−11.2% | Reduced |
| Nuveen, LLC | 14,304 | $298.4K | 0.00% | 00.0% | Unchanged |
| SEI Investments Co | 15,251 | $318.1K | 0.00% | +15,251 | New |
| Alps Advisors Inc | 15,369 | $320.6K | 0.00% | +15,369 | New |
| Quest Partners LLC | 18,187 | $379.4K | 0.02% | +10,888+149.2% | Added |
| Jane Street Group, LLC | 19,321 | $403.0K | 0.00% | −9,399−32.7% | Reduced |
| Aquatic Capital Management LLC | 22,262 | $464.4K | 0.01% | +22,262 | New |
| Barclays PLC | 22,443 | $468.2K | 0.00% | +4,467+24.8% | Added |
| Bank of New York Mellon Corp | 25,858 | $539.4K | 0.00% | −275−1.1% | Reduced |
| Monimus Capital Management, LP | 26,594 | $554.8K | 0.37% | +2,700+11.3% | Added |
| BIT Capital GmbH | 30,000 | $625.8K | 0.03% | +30,000 | New |
| ADAR1 Capital Management, LLC | 30,007 | $625.9K | 0.05% | −26,000−46.4% | Reduced |
| Marshall Wace, LLP | 30,918 | $644.9K | 0.00% | +5,842+23.3% | Added |
| UBS Group AG | 31,215 | $651.1K | 0.00% | −35,245−53.0% | Reduced |
| Charles Schwab Investment Management Inc | 32,461 | $677.1K | 0.00% | +103+0.3% | Added |
| Aldebaran Capital, LLC | 37,353 | $779.2K | 0.70% | −1,149−3.0% | Reduced |
| Wellington Management Group LLP | 37,379 | $779.7K | 0.00% | +170.0% | Added |
| Schonfeld Strategic Advisors LLC | 39,109 | $815.8K | 0.00% | +39,109 | New |
| Jump Financial, LLC | 39,500 | $824.0K | 0.01% | +39,500 | New |
| Sectoral Asset Management Inc | 42,255 | $881.4K | 0.71% | −150,515−78.1% | Reduced |
| PFM Health Sciences, LP | 42,724 | $891.2K | 0.09% | +42,724 | New |
| Raymond James Financial Inc | 54,601 | $1.14M | 0.00% | +2,670+5.1% | Added |
| Gsa Capital Partners LLP | 63,276 | $1.32M | 0.11% | +63,276 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 71,657 | $1.49M | 0.00% | +27,772+63.3% | Added |
| Northern Trust Corp | 72,255 | $1.51M | 0.00% | −10,976−13.2% | Reduced |
| Knott David M Jr | 74,000 | $1.54M | 0.71% | 00.0% | Unchanged |
| Kotler Kevin | 80,000 | $1.67M | 1.23% | +80,000 | New |
| Goldman Sachs Group Inc | 92,703 | $1.93M | 0.00% | −4,163−4.3% | Reduced |
| Morgan Stanley | 94,435 | $1.97M | 0.00% | −10,298−9.8% | Reduced |
| ExodusPoint Capital Management, LP | 111,188 | $2.32M | 0.03% | +98,171+754.2% | Added |
| D. E. Shaw & Co., Inc. | 120,250 | $2.51M | 0.00% | +120,250 | New |
| Wells Fargo & Company | 120,411 | $2.51M | 0.00% | +17,938+17.5% | Added |
| Susquehanna International Group, LLP | 151,713 | $3.16M | 0.00% | +151,713 | New |
| Squarepoint Ops LLC | 199,646 | $4.16M | 0.01% | +134,211+205.1% | Added |
| Woodline Partners LP | 200,000 | $4.17M | 0.02% | 00.0% | Unchanged |
| State Street Corp | 209,125 | $4.36M | 0.00% | +43,594+26.3% | Added |
| Kennedy Capital Management, Inc. | 209,225 | $4.36M | 0.09% | +449+0.2% | Added |
| Opaleye Management Inc. | 214,747 | $4.48M | 0.59% | +214,747 | New |
| Prosight Management, LP | 235,000 | $4.90M | 1.01% | −144,254−38.0% | Reduced |
| Pale Fire Capital SE | 261,026 | $5.45M | 0.70% | +1,300+0.5% | Added |
| Geode Capital Management, LLC | 263,560 | $5.50M | 0.00% | −5,793−2.2% | Reduced |
| Millennium Management LLC | 300,820 | $6.28M | 0.00% | +62,650+26.3% | Added |
| Bollard Group LLC | 302,953 | $6.32M | 0.17% | 00.0% | Unchanged |
| Citadel Advisors LLC | 317,617 | $6.63M | 0.00% | +19,229+6.4% | Added |
| Vestal Point Capital, LP | 328,000 | $6.84M | 0.25% | +328,000 | New |
| Point72 Asset Management, L.P. | 492,332 | $10.3M | 0.02% | +70,577+16.7% | Added |
| OrbiMed Advisors LLC | 574,600 | $12.0M | 0.25% | +574,600 | New |
| Vanguard Group Inc | 599,898 | $12.5M | 0.00% | +30,418+5.3% | Added |
| 5AM Venture Management, LLC | 606,660 | $12.7M | 3.98% | +95,000+18.6% | Added |