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, Q1 2024
Institutional positions in Tectonic Therapeutic, Inc. as of Mar 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
- 47
- +2 vs. Q4 2023
- Shares held
- 29.6M
- +5.86M (+24.7%) vs. Q4 2023
- Total value
- $35.2M
- +$3.02M (+9.4%) vs. Q4 2023
- New holders
- 9
- 10 more added
- Sold out
- 7
- 14 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Atlas Venture Life Science Advisors, LLC | 4,541,381 | $5.81M | 0.54% | 00.0% | Unchanged |
| BML Capital Management, LLC | 4,001,627 | $5.12M | 3.43% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 3,954,857 | $5.06M | 1.38% | +3,904,710+7,786.5% | Added |
| Verition Fund Management LLC | 1,927,865 | $2.47M | 0.02% | +1,927,865 | New |
| Vanguard Group Inc | 1,881,234 | $2.41M | 0.00% | +279,400+17.4% | Added |
| Acadian Asset Management LLC | 1,236,738 | $1.58M | 0.01% | −217,526−15.0% | Reduced |
| Newtyn Management, LLC | 1,118,892 | $1.43M | 0.29% | −1,615,283−59.1% | Reduced |
| Aisling Capital Management LP | 1,009,779 | $1.29M | 0.44% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 888,167 | $1.14M | 0.00% | +129,224+17.0% | Added |
| Tang Capital Management LLC | 852,802 | $1.09M | 0.11% | +852,802 | New |
| Ikarian Capital, LLC | 754,061 | $965.2K | 0.26% | +35,802+5.0% | Added |
| Affinity Asset Advisors, LLC | 700,000 | $896.0K | 0.15% | +200,000+40.0% | Added |
| BlackRock Inc. | 613,432 | $785.2K | 0.00% | −1,276−0.2% | Reduced |
| Prosight Management, LP | 566,519 | $725.1K | 0.20% | +566,519 | New |
| Aldebaran Capital, LLC | 517,431 | $662.3K | 0.63% | +62,445+13.7% | Added |
| Citadel Advisors LLC | 437,040 | $559.4K | 0.00% | −78,176−15.2% | Reduced |
| Geode Capital Management, LLC | 372,439 | $476.8K | 0.00% | +5,923+1.6% | Added |
| Two Sigma Advisers, LP | 296,300 | $379.3K | 0.00% | +31,200+11.8% | Added |
| Two Sigma Investments, LP | 270,452 | $346.2K | 0.00% | −39,064−12.6% | Reduced |
| Bridgeway Capital Management, LLC | 267,387 | $342.3K | 0.01% | +27,400+11.4% | Added |
| Boothbay Fund Management, LLC | 190,635 | $244.0K | 0.01% | +35,802+23.1% | Added |
| Morgan Stanley | 159,709 | $204.4K | 0.00% | −468,550−74.6% | Reduced |
| Vazirani Asset Management LLC | 150,000 | $192.0K | 0.53% | −500,000−76.9% | Reduced |
| State Street Corp | 140,852 | $180.3K | 0.00% | 00.0% | Unchanged |
| Walleye Capital LLC | 135,643 | $173.6K | 0.00% | +135,643 | New |
| Wells Fargo & Company | 125,753 | $161.0K | 0.00% | −8,701−6.5% | Reduced |
| FNY Investment Advisers, LLC | 75,000 | $96.0K | 0.06% | −325,000−81.3% | Reduced |
| Northern Trust Corp | 67,442 | $86.3K | 0.00% | −88−0.1% | Reduced |
| Exome Asset Management LLC | 61,135 | $78.3K | 0.07% | +61,135 | New |
| BBR Partners, LLC | 60,000 | $76.8K | 0.01% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 38,694 | $49.5K | 0.00% | +38,694 | New |
| Susquehanna International Group, LLP | 34,530 | $44.2K | 0.00% | +34,530 | New |
| XTX Topco Ltd | 24,359 | $31.2K | 0.00% | −30,594−55.7% | Reduced |
| Barclays PLC | 17,306 | $22.2K | 0.00% | 00.0% | Unchanged |
| Colonial River Wealth Management, LLC | 16,177 | $20.7K | 0.01% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 10,476 | $13.4K | 0.00% | +10,476 | New |
| CWM, LLC | 6,388 | $8.00K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 4,000 | $5.12K | 0.00% | −4,000−50.0% | Reduced |
| Tower Research Capital LLC (TRC) | 3,115 | $3.99K | 0.00% | −667−17.6% | Reduced |
| BNP Paribas Arbitrage, SA | 2,994 | $3.83K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 1,893 | $2.00K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 1,208 | $1.55K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 380 | $463 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 282 | $361 | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 13 | $17 | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 2 | $2 | 0.00% | −28−93.3% | Reduced |
| FMR LLC | 2,017,633 | – | – | +2,017,633 | New |
| Gabelli & Co Investment Advisers, Inc. | 0 | $0 | 0.00% | −353,000−100.0% | Sold out |
| Gabelli Funds LLC | 0 | $0 | 0.00% | −343,421−100.0% | Sold out |
| Western Standard LLC | 0 | $0 | 0.00% | −312,912−100.0% | Sold out |
| JBF Capital, Inc. | 0 | $0 | 0.00% | −160,000−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −16,788−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −11,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −10,048−100.0% | Sold out |