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, Q4 2024
Institutional positions in Tectonic Therapeutic, Inc. as of Dec 31, 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
- 70
- +17 vs. Q3 2024
- Shares held
- 7.69M
- +511.1K (+7.1%) vs. Q3 2024
- Total value
- $354.9M
- +$137.5M (+63.2%) vs. Q3 2024
- New holders
- 25
- 21 more added
- Sold out
- 8
- 15 more reduced
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 1,516,335 | $70.0M | 0.00% | +296,197+24.3% | Added |
| Vida Ventures Advisors, LLC | 1,028,674 | $47.5M | 32.46% | 00.0% | Unchanged |
| EcoR1 Capital, LLC | 849,143 | $39.2M | 1.57% | 00.0% | Unchanged |
| Farallon Capital Management, L.L.C. | 713,050 | $32.9M | 0.17% | +192,653+37.0% | Added |
| 5AM Venture Management, LLC | 596,660 | $27.5M | 6.57% | −49,864−7.7% | Reduced |
| Paradigm Biocapital Advisors LP | 485,105 | $22.4M | 0.78% | +485,105 | New |
| Vanguard Group Inc | 361,048 | $16.7M | 0.00% | −81,766−18.5% | Reduced |
| Balyasny Asset Management LLC | 247,000 | $11.4M | 0.03% | +66,527+36.9% | Added |
| BlackRock, Inc. | 195,059 | $9.01M | 0.00% | +72,027+58.5% | Added |
| Susquehanna International Group, LLP | 166,452 | $7.69M | 0.01% | +103,698+165.2% | Added |
| Ikarian Capital, LLC | 142,328 | $6.57M | 1.88% | −124,817−46.7% | Reduced |
| Woodline Partners LP | 130,109 | $6.01M | 0.04% | +64,661+98.8% | Added |
| Invesco Ltd. | 128,178 | $5.92M | 0.00% | +128,178 | New |
| Tang Capital Management LLC | 79,166 | $3.66M | 0.24% | 00.0% | Unchanged |
| Atlas Venture Life Science Advisors, LLC | 78,447 | $3.62M | 0.44% | −300,000−79.3% | Reduced |
| Geode Capital Management, LLC | 77,584 | $3.58M | 0.00% | +705+0.9% | Added |
| Walleye Capital LLC | 73,517 | $3.39M | 0.03% | +555+0.8% | Added |
| ADAR1 Capital Management, LLC | 58,708 | $2.71M | 0.56% | −68,451−53.8% | Reduced |
| Affinity Asset Advisors, LLC | 58,331 | $2.69M | 0.42% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 48,173 | $2.22M | 0.00% | −8,724−15.3% | Reduced |
| Boothbay Fund Management, LLC | 41,307 | $1.91M | 0.06% | −34,337−45.4% | Reduced |
| Aldebaran Capital, LLC | 41,207 | $1.90M | 1.81% | −784−1.9% | Reduced |
| Acuta Capital Partners, LLC | 33,008 | $1.52M | 1.53% | +19,308+140.9% | Added |
| Soleus Capital Management, L.P. | 31,841 | $1.47M | 0.11% | +31,841 | New |
| Qube Research & Technologies Ltd | 29,757 | $1.37M | 0.00% | +29,757 | New |
| Jane Street Group, LLC | 29,702 | $1.37M | 0.00% | +29,702 | New |
| Millennium Management LLC | 28,793 | $1.33M | 0.00% | +28,793 | New |
| State Street Corp | 27,405 | $1.27M | 0.00% | +15,728+134.7% | Added |
| Dimensional Fund Advisors LP | 26,264 | $1.21M | 0.00% | +2,409+10.1% | Added |
| Verition Fund Management LLC | 26,171 | $1.21M | 0.01% | −88,607−77.2% | Reduced |
| Exome Asset Management LLC | 26,081 | $1.20M | 0.91% | −10,263−28.2% | Reduced |
| EAM Investors, LLC | 25,061 | $1.16M | 0.16% | −1,130−4.3% | Reduced |
| Goldman Sachs Group Inc | 24,310 | $1.12M | 0.00% | +24,310 | New |
| Wells Fargo & Company | 18,513 | $854.7K | 0.00% | −2,439−11.6% | Reduced |
| Morgan Stanley | 17,415 | $804.0K | 0.00% | +4,094+30.7% | Added |
| Schonfeld Strategic Advisors LLC | 17,345 | $800.8K | 0.01% | +2,345+15.6% | Added |
| Artia Global Partners LP | 16,650 | $768.7K | 0.31% | +16,650 | New |
| Barclays PLC | 15,974 | $737.5K | 0.00% | +14,533+1,008.5% | Added |
| Northern Trust Corp | 14,682 | $677.9K | 0.00% | +5,037+52.2% | Added |
| Bridgeway Capital Management, LLC | 14,668 | $677.2K | 0.02% | −5,713−28.0% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 14,485 | $668.8K | 0.00% | +6,783+88.1% | Added |
| 683 Capital Management, LLC | 14,027 | $647.6K | 0.06% | +14,027 | New |
| Citigroup Inc | 13,583 | $627.1K | 0.00% | +1,783+15.1% | Added |
| UBS Group AG | 10,774 | $497.4K | 0.00% | +10,771+359,033.3% | Added |
| Clarius Group, LLC | 10,130 | $467.7K | 0.03% | +10,130 | New |
| Fred Alger Management, LLC | 10,057 | $464.3K | 0.00% | +10,057 | New |
| Omers Administration Corp | 9,600 | $443.2K | 0.00% | +9,600 | New |
| StemPoint Capital LP | 9,434 | $435.6K | 0.11% | +9,434 | New |
| Prelude Capital Management, LLC | 7,841 | $362.0K | 0.03% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 7,516 | $347.0K | 0.00% | +7,516 | New |
| Aster Capital Management (DIFC) Ltd | 6,768 | $312.5K | 0.12% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 5,400 | $249.3K | 0.00% | +5,400 | New |
| Commonwealth Equity Services, LLC | 5,000 | $231.0K | 0.00% | +5,000 | New |
| Raymond James Financial Inc | 4,939 | $228.0K | 0.00% | +4,939 | New |
| Charles Schwab Investment Management Inc | 4,711 | $217.5K | 0.00% | +4,711 | New |
| Clearstead Advisors, LLC | 3,833 | $177.0K | 0.00% | −83−2.1% | Reduced |
| China Universal Asset Management Co., Ltd. | 3,128 | $144.4K | 0.01% | +3,128 | New |
| Virtus ETF Advisers LLC | 1,533 | $70.8K | 0.03% | +1,533 | New |
| Nordwand Advisors, LLC | 1,500 | $69.3K | 0.03% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,244 | $57.4K | 0.00% | +1,222+5,554.5% | Added |
| CWM, LLC | 531 | $25.0K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 492 | $23.1K | 0.00% | +492 | New |
| GF Fund Management Co. Ltd. | 310 | $14.3K | 0.00% | +310 | New |
| Tower Research Capital LLC (TRC) | 216 | $9.97K | 0.00% | +216 | New |
| BNP Paribas Arbitrage, SA | 169 | $7.80K | 0.00% | +169 | New |
| Bank of America Corp | 129 | $5.96K | 0.00% | −33−20.4% | Reduced |
| Rhumbline Advisers | 100 | $4.62K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 87 | $4.02K | 0.00% | +87 | New |
| US Bancorp | 69 | $3.19K | 0.00% | +37+115.6% | Added |
| National Bank of Canada | 39 | $1.80K | 0.00% | +8+25.8% | Added |
| BML Capital Management, LLC | 0 | $0 | 0.00% | −211,752−100.0% | Sold out |
| Prosight Management, LP | 0 | $0 | 0.00% | −137,614−100.0% | Sold out |
| Aisling Capital Management LP | 0 | $0 | 0.00% | −84,148−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −11,031−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −9,395−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −155−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −1−100.0% | Sold out |