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 2023
Institutional positions in Tectonic Therapeutic, Inc. as of Sep 30, 2023. 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
- 48
- +7 vs. Q2 2023
- Shares held
- 25.9M
- +5.96M (+29.9%) vs. Q2 2023
- Total value
- $39.9M
- +$20.9M (+110.6%) vs. Q2 2023
- New holders
- 14
- 12 more added
- Sold out
- 7
- 13 more reduced
Compare with Q2 2023: 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 2023
Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Atlas Venture Life Science Advisors, LLC | 4,541,381 | $6.99M | 1.08% | 00.0% | Unchanged |
| BML Capital Management, LLC | 4,001,627 | $6.16M | 5.68% | +3,745,350+1,461.4% | Added |
| Tang Capital Management LLC | 3,512,686 | $5.41M | 0.76% | +807,686+29.9% | Added |
| Newtyn Management, LLC | 2,000,000 | $3.08M | 0.76% | +2,000,000 | New |
| Acadian Asset Management LLC | 1,725,089 | $2.65M | 0.01% | −45,058−2.5% | Reduced |
| Vanguard Group Inc | 1,574,834 | $2.43M | 0.00% | +393,700+33.3% | Added |
| Aisling Capital Management LP | 1,009,779 | $1.56M | 0.64% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 718,259 | $1.11M | 0.41% | +584,113+435.4% | Added |
| BlackRock Inc. | 622,553 | $958.7K | 0.00% | −10,483−1.7% | Reduced |
| Terrapin Asset Management, LLC | 558,787 | $860.5K | 1.18% | +558,787 | New |
| Morgan Stanley | 521,199 | $802.6K | 0.00% | −528,071−50.3% | Reduced |
| Renaissance Technologies LLC | 518,467 | $798.0K | 0.00% | −44,100−7.8% | Reduced |
| Citadel Advisors LLC | 509,983 | $785.4K | 0.00% | +3,629+0.7% | Added |
| Affinity Asset Advisors, LLC | 500,000 | $770.0K | 0.25% | +500,000 | New |
| Aldebaran Capital, LLC | 470,130 | $724.0K | 0.74% | +470,130 | New |
| Vazirani Asset Management LLC | 468,273 | $721.1K | 1.15% | +468,273 | New |
| Geode Capital Management, LLC | 353,116 | $544.0K | 0.00% | +9,375+2.7% | Added |
| Two Sigma Investments, LP | 327,915 | $505.0K | 0.00% | +42,054+14.7% | Added |
| Western Standard LLC | 310,361 | $478.0K | 0.43% | +310,361 | New |
| Two Sigma Advisers, LP | 236,600 | $364.4K | 0.00% | −20,600−8.0% | Reduced |
| FNY Investment Advisers, LLC | 225,000 | $346.0K | 0.21% | +225,000 | New |
| JBF Capital, Inc. | 160,000 | $246.4K | 0.05% | +160,000 | New |
| Boothbay Fund Management, LLC | 154,833 | $238.4K | 0.01% | +127,937+475.7% | Added |
| Wells Fargo & Company | 148,607 | $228.9K | 0.00% | −18,487−11.1% | Reduced |
| Bridgeway Capital Management, LLC | 147,400 | $227.0K | 0.01% | +41,400+39.1% | Added |
| State Street Corp | 140,852 | $216.9K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 83,820 | $129.1K | 0.00% | −57,939−40.9% | Reduced |
| Northern Trust Corp | 74,453 | $114.7K | 0.00% | −828−1.1% | Reduced |
| BBR Partners, LLC | 60,000 | $92.4K | 0.01% | +60,000 | New |
| Millennium Management LLC | 35,872 | $55.2K | 0.00% | −145,718−80.2% | Reduced |
| Virtu Financial LLC | 35,850 | $55.0K | 0.01% | +13,298+59.0% | Added |
| XTX Topco Ltd | 29,107 | $44.8K | 0.01% | +29,107 | New |
| Private Advisor Group, LLC | 21,410 | $33.0K | 0.00% | +21,410 | New |
| Barclays PLC | 17,306 | $26.7K | 0.00% | −4,873−22.0% | Reduced |
| Bank of New York Mellon Corp | 16,788 | $25.9K | 0.00% | 00.0% | Unchanged |
| Colonial River Wealth Management, LLC | 16,675 | $25.7K | 0.02% | −265−1.6% | Reduced |
| Commonwealth Equity Services, LLC | 11,320 | $17.0K | 0.00% | +320+2.9% | Added |
| UBS Group AG | 9,876 | $15.2K | 0.00% | +9,811+15,093.8% | Added |
| CWM, LLC | 6,388 | $10.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 5,198 | $8.01K | 0.00% | −6,757−56.5% | Reduced |
| IFP Advisors, Inc | 3,500 | $5.39K | 0.00% | +3,500 | New |
| Advisor Group Holdings, Inc. | 3,000 | $4.62K | 0.00% | +3,000 | New |
| BNP Paribas Arbitrage, SA | 2,994 | $4.61K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 1,979 | $3.00K | 0.00% | −346−14.9% | Reduced |
| Rhumbline Advisers | 1,208 | $1.86K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 380 | $572 | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 215 | $331 | 0.00% | +215 | New |
| Bank of America Corp | 2 | $4 | 0.00% | 00.0% | Unchanged |
| GMT Capital Corp | 0 | $0 | 0.00% | −2,412,015−100.0% | Sold out |
| Farallon Capital Management, L.L.C. | 0 | $0 | 0.00% | −899,700−100.0% | Sold out |
| Boston Private Wealth LLC | 0 | $0 | 0.00% | −284,365−100.0% | Sold out |
| Privium Fund Management (UK) Ltd | 0 | $0 | 0.00% | −87,770−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −35,000−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −16,556−100.0% | Sold out |
| C2C Wealth Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |