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