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, Q3 2024
Institutional positions in Tectonic Therapeutic, Inc. as of Sep 30, 2024. 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
- 53
- +14 vs. Q2 2024
- Shares held
- 7.18M
- +1.88M (+35.5%) vs. Q2 2024
- Total value
- $217.4M
- +$130.2M (+149.3%) vs. Q2 2024
- New holders
- 18
- 12 more added
- Sold out
- 4
- 9 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2024
Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 1,220,138 | $37.0M | 0.00% | +142,600+13.2% | Added |
| Vida Ventures Advisors, LLC | 1,028,674 | $31.2M | 22.49% | +1,028,674 | New |
| EcoR1 Capital, LLC | 849,143 | $25.7M | 0.88% | 00.0% | Unchanged |
| 5AM Venture Management, LLC | 646,524 | $19.6M | 4.05% | 00.0% | Unchanged |
| Farallon Capital Management, L.L.C. | 520,397 | $15.8M | 0.09% | +89,387+20.7% | Added |
| Vanguard Group Inc | 442,814 | $13.4M | 0.00% | +286,046+182.5% | Added |
| Atlas Venture Life Science Advisors, LLC | 378,447 | $11.5M | 1.06% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 267,145 | $8.09M | 2.51% | +204,309+325.1% | Added |
| BML Capital Management, LLC | 211,752 | $6.42M | 3.78% | −254,295−54.6% | Reduced |
| Balyasny Asset Management LLC | 180,473 | $5.47M | 0.01% | +180,473 | New |
| Prosight Management, LP | 137,614 | $4.17M | 1.06% | +70,153+104.0% | Added |
| ADAR1 Capital Management, LLC | 127,159 | $3.85M | 0.65% | −229,719−64.4% | Reduced |
| BlackRock, Inc. | 123,032 | $3.73M | 0.00% | +123,032 | New |
| Verition Fund Management LLC | 114,778 | $3.48M | 0.02% | −25,902−18.4% | Reduced |
| Aisling Capital Management LP | 84,148 | $2.55M | 0.98% | 00.0% | Unchanged |
| Tang Capital Management LLC | 79,166 | $2.40M | 0.17% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 76,879 | $2.33M | 0.00% | +45,846+147.7% | Added |
| Boothbay Fund Management, LLC | 75,644 | $2.29M | 0.07% | +59,759+376.2% | Added |
| Walleye Capital LLC | 72,962 | $2.21M | 0.02% | +48,978+204.2% | Added |
| Woodline Partners LP | 65,448 | $1.98M | 0.02% | +65,448 | New |
| Susquehanna International Group, LLP | 62,754 | $1.90M | 0.00% | +62,754 | New |
| Affinity Asset Advisors, LLC | 58,331 | $1.77M | 0.27% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 56,897 | $1.72M | 0.00% | −32,132−36.1% | Reduced |
| Aldebaran Capital, LLC | 41,991 | $1.27M | 1.16% | 00.0% | Unchanged |
| Exome Asset Management LLC | 36,344 | $1.10M | 0.74% | +3,955+12.2% | Added |
| EAM Investors, LLC | 26,191 | $793.6K | 0.12% | +26,191 | New |
| Dimensional Fund Advisors LP | 23,855 | $723.0K | 0.00% | +23,855 | New |
| Wells Fargo & Company | 20,952 | $634.8K | 0.00% | +11,227+115.4% | Added |
| Bridgeway Capital Management, LLC | 20,381 | $617.5K | 0.01% | +600+3.0% | Added |
| Schonfeld Strategic Advisors LLC | 15,000 | $454.5K | 0.00% | +15,000 | New |
| Acuta Capital Partners, LLC | 13,700 | $415.1K | 0.34% | +13,700 | New |
| Morgan Stanley | 13,321 | $403.6K | 0.00% | +132+1.0% | Added |
| Citigroup Inc | 11,800 | $357.5K | 0.00% | +11,800 | New |
| State Street Corp | 11,677 | $353.8K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 11,031 | $334.2K | 0.00% | −3,514−24.2% | Reduced |
| Northern Trust Corp | 9,645 | $292.2K | 0.00% | +9,645 | New |
| Acadian Asset Management LLC | 9,395 | $284.0K | 0.00% | −100,234−91.4% | Reduced |
| Prelude Capital Management, LLC | 7,841 | $237.6K | 0.02% | +7,841 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 7,702 | $233.4K | 0.00% | +7,702 | New |
| Aster Capital Management (DIFC) Ltd | 6,768 | $205.1K | 0.04% | +6,768 | New |
| Clearstead Advisors, LLC | 3,916 | $118.7K | 0.00% | −4,224−51.9% | Reduced |
| Nordwand Advisors, LLC | 1,500 | $45.5K | 0.01% | +1,500 | New |
| Barclays PLC | 1,441 | $43.7K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 531 | $16.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 155 | $5.00K | 0.00% | −2−1.3% | Reduced |
| Bank of America Corp | 162 | $4.91K | 0.00% | −74−31.4% | Reduced |
| Rhumbline Advisers | 100 | $3.03K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 32 | $970 | 0.00% | +32 | New |
| National Bank of Canada | 31 | $939 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 22 | $667 | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 3 | $91 | 0.00% | +3 | New |
| Danske Bank A/S | 2 | $61 | 0.00% | +2 | New |
| Group One Trading, L.P. | 1 | $30 | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −13,071−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −3,376−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −249−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −112−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |