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, Q2 2026
Institutional positions in Tectonic Therapeutic, Inc. as of Jun 30, 2026. 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
- 122
- +13 vs. Q1 2026
- Shares held
- 14.0M
- +155.2K (+1.1%) vs. Q1 2026
- Total value
- $479.9M
- +$53.2M (+12.5%) vs. Q1 2026
- New holders
- 24
- 39 more added
- Sold out
- 11
- 40 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rothschild Investment LLC | 2 | $69 | 0.00% | −9−81.8% | Reduced |
| IFP Advisors, Inc | 2 | $69 | 0.00% | +2 | New |
| Advisor Group Holdings, Inc. | 2 | $69 | 0.00% | +2 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3 | $103 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 5 | $172 | 0.00% | −32−86.5% | Reduced |
| National Bank of Canada | 6 | $205 | 0.00% | +6 | New |
| EverSource Wealth Advisors, LLC | 7 | $240 | 0.00% | −12−63.2% | Reduced |
| First National Bank | 8 | $275 | 0.00% | +8 | New |
| SBI Securities Co., Ltd. | 11 | $378 | 0.00% | +11 | New |
| Huntington National Bank | 13 | $447 | 0.00% | 00.0% | Unchanged |
| Eastern Bank | 13 | $447 | 0.00% | +13 | New |
| Caldwell Trust Co | 20 | $688 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 40 | $1.38K | 0.00% | +14+53.8% | Added |
| Marshall & Sterling Wealth Advisors Inc. | 50 | $1.72K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 52 | $1.79K | 0.00% | −13−20.0% | Reduced |
| Farther Finance Advisors, LLC | 76 | $2.61K | 0.00% | −26−25.5% | Reduced |
| Axiom Investment Management LLC | 125 | $4.30K | 0.00% | +125 | New |
| California State Teachers Retirement System | 141 | $4.85K | 0.00% | −454−76.3% | Reduced |
| Sterling Capital Management LLC | 176 | $6.05K | 0.00% | −137−43.8% | Reduced |
| Federation des caisses Desjardins du Quebec | 250 | $8.59K | 0.00% | −250−50.0% | Reduced |
| GAMMA Investing LLC | 290 | $9.97K | 0.00% | −40−12.1% | Reduced |
| Royal Bank of Canada | 311 | $11.0K | 0.00% | +311 | New |
| Rockefeller Capital Management L.P. | 370 | $12.7K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 382 | $13.1K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 400 | $13.8K | 0.00% | −15−3.6% | Reduced |
| Simplex Trading, LLC | 439 | $15.1K | 0.00% | −912−67.5% | Reduced |
| HighMark Wealth Management LLC | 587 | $20.2K | 0.01% | 00.0% | Unchanged |
| State of Wyoming | 601 | $20.7K | 0.00% | +601 | New |
| Tower Research Capital LLC (TRC) | 661 | $22.7K | 0.00% | −253−27.7% | Reduced |
| SRS Capital Advisors, Inc. | 725 | $24.9K | 0.00% | +725 | New |
| Chung Wu Investment Group, LLC | 800 | $27.5K | 0.02% | +800 | New |
| Mirae Asset Global Investments Co., Ltd. | 844 | $29.0K | 0.00% | −135−13.8% | Reduced |
| Legal & General Group Plc | 1,000 | $34.4K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 1,080 | $37.1K | 0.00% | −56−4.9% | Reduced |
| Ameritas Investment Partners, Inc. | 1,122 | $38.6K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 1,819 | $62.5K | 0.00% | +1,819 | New |
| Police & Firemen's Retirement System of New Jersey | 2,638 | $90.7K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 4,600 | $158.1K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 4,694 | $161.4K | 0.00% | −521−10.0% | Reduced |
| BNP Paribas Arbitrage, SA | 5,146 | $176.9K | 0.00% | +2,330+82.7% | Added |
| Nisa Investment Advisors, LLC | 5,400 | $185.6K | 0.00% | +400+8.0% | Added |
| China Universal Asset Management Co., Ltd. | 5,503 | $189.2K | 0.01% | −829−13.1% | Reduced |
| Citigroup Inc | 5,548 | $190.7K | 0.00% | +4,401+383.7% | Added |
| Russell Investments Group, Ltd. | 5,567 | $191.4K | 0.00% | +4,716+554.2% | Added |
| Manufacturers Life Insurance Company, The | 5,996 | $206.1K | 0.00% | −7,933−57.0% | Reduced |
| Rangeley Capital, LLC | 6,000 | $206.3K | 0.20% | +6,000 | New |
| Velan Capital Investment Management LP | 6,000 | $206.3K | 0.13% | +6,000 | New |
| State Board of Administration of Florida Retirement System | 6,060 | $208.3K | 0.00% | +6,060 | New |
| Invesco Ltd. | 6,388 | $219.6K | 0.00% | −1,287−16.8% | Reduced |
| AQR Capital Management LLC | 6,617 | $227.5K | 0.00% | −10,317−60.9% | Reduced |
| Alliancebernstein L.P. | 7,460 | $230.6K | 0.00% | +7,460 | New |
| MetLife Investment Management | 6,724 | $231.1K | 0.00% | 00.0% | Unchanged |
| AlphaCentric Advisors LLC | 6,948 | $238.8K | 0.20% | +99+1.4% | Added |
| Gsa Capital Partners LLP | 8,275 | $284.0K | 0.02% | −10,598−56.2% | Reduced |
| Vanguard Global Advisers, LLC | 8,765 | $301.3K | 0.00% | +4,801+121.1% | Added |
| Fox Run Management, L.L.C. | 8,865 | $304.7K | 0.05% | +8,865 | New |
| Creative Planning | 8,961 | $308.0K | 0.00% | −3,485−28.0% | Reduced |
| Barclays PLC | 9,128 | $313.8K | 0.00% | +2,422+36.1% | Added |
| Brevan Howard Capital Management LP | 9,573 | $329.1K | 0.00% | +9,573 | New |
| Deutsche Bank AG | 10,039 | $345.1K | 0.00% | +694+7.4% | Added |
| Dimensional Fund Advisors LP | 10,443 | $359.0K | 0.00% | +366+3.6% | Added |
| Virtus Investment Advisers, Inc. | 10,806 | $371.5K | 0.09% | −2,993−21.7% | Reduced |
| Bank of America Corp | 11,043 | $379.6K | 0.00% | −423−3.7% | Reduced |
| Nuveen, LLC | 13,514 | $464.5K | 0.00% | +1,481+12.3% | Added |
| Rhumbline Advisers | 13,773 | $473.4K | 0.00% | −254−1.8% | Reduced |
| ADAR1 Capital Management, LLC | 14,501 | $498.5K | 0.02% | +1,500+11.5% | Added |
| UBS Group AG | 15,055 | $517.5K | 0.00% | −14,932−49.8% | Reduced |
| Clearstead Advisors, LLC | 16,630 | $571.7K | 0.01% | −10,130−37.9% | Reduced |
| SEI Investments Co | 17,029 | $585.4K | 0.00% | −19,841−53.8% | Reduced |
| Quadrature Capital Ltd | 18,067 | $621.1K | 0.01% | +18,067 | New |
| American Century Companies Inc | 19,001 | $653.2K | 0.00% | +6,467+51.6% | Added |
| Fisher Asset Management, LLC | 19,122 | $657.3K | 0.00% | +19,122 | New |
| Alps Advisors Inc | 19,147 | $658.2K | 0.00% | +3,861+25.3% | Added |
| Bank of New York Mellon Corp | 25,247 | $867.9K | 0.00% | +487+2.0% | Added |
| Monimus Capital Management, LP | 28,143 | $967.4K | 0.25% | +1,390+5.2% | Added |
| Charles Schwab Investment Management Inc | 30,438 | $1.05M | 0.00% | +1,328+4.6% | Added |
| Wellington Management Group LLP | 31,432 | $1.08M | 0.00% | +2,192+7.5% | Added |
| ExodusPoint Capital Management, LP | 35,239 | $1.21M | 0.01% | −48,440−57.9% | Reduced |
| Aldebaran Capital, LLC | 36,797 | $1.26M | 0.95% | −387−1.0% | Reduced |
| Trexquant Investment LP | 36,991 | $1.27M | 0.01% | +36,991 | New |
| Prosight Management, LP | 39,731 | $1.37M | 0.24% | −40,141−50.3% | Reduced |
| Jump Financial, LLC | 43,400 | $1.49M | 0.01% | +302+0.7% | Added |
| HRT Financial LP | 44,540 | $1.53M | 0.00% | +44,540 | New |
| PFM Health Sciences, LP | 45,631 | $1.57M | 0.14% | −498−1.1% | Reduced |
| Polygon Management Ltd. | 46,516 | $1.60M | 0.26% | +8,928+23.8% | Added |
| Price T Rowe Associates Inc | 48,001 | $1.65M | 0.00% | −116,054−70.7% | Reduced |
| JPMorgan Chase & Co | 55,364 | $1.83M | 0.00% | −3,506−6.0% | Reduced |
| Boothbay Fund Management, LLC | 60,771 | $2.09M | 0.04% | +14,634+31.7% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 64,940 | $2.23M | 0.00% | −2,054−3.1% | Reduced |
| Morgan Stanley | 65,373 | $2.25M | 0.00% | +525+0.8% | Added |
| Jane Street Group, LLC | 65,821 | $2.26M | 0.00% | +65,821 | New |
| Vanguard Fiduciary Trust Co | 68,394 | $2.35M | 0.00% | +499+0.7% | Added |
| Sectoral Asset Management Inc | 71,009 | $2.44M | 1.70% | +51,950+272.6% | Added |
| Raymond James Financial Inc | 72,674 | $2.50M | 0.00% | +8,478+13.2% | Added |
| Goldman Sachs Group Inc | 73,924 | $2.54M | 0.00% | +11,498+18.4% | Added |
| Citadel Advisors LLC | 90,393 | $3.11M | 0.00% | +90,393 | New |
| Vanguard Portfolio Management LLC | 94,414 | $3.25M | 0.00% | +30,807+48.4% | Added |
| Woodline Partners LP | 100,000 | $3.44M | 0.01% | 00.0% | Unchanged |
| Soleus Capital Management, L.P. | 101,684 | $3.50M | 0.12% | −20,000−16.4% | Reduced |
| Northern Trust Corp | 113,904 | $3.92M | 0.00% | +35,551+45.4% | Added |