Tectonic TherapeuticTECX
13F holders, Q4 2024 (December 31)70holders +17
22new positions
8sold out
2famous investors
$46.17avg. 13F price*
At the end of Q4 2024, 70 institutions reported holding Tectonic Therapeutic Inc. (TECX) in their 13F filings, up 17 from Q3 2024. 22 opened new positions and 8 sold out. The largest holders were FMR LLC ($70.0M), Vida Ventures Advisors, LLC ($47.5M) and EcoR1 Capital, LLC ($39.2M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Tectonic Therapeutic Inc.
- CUSIP
- 878972108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $39.5M |
| Exits | 8 | $13.8M |
All 13F filers, Q3 2024 → Q4 2024: 1,736,830 shares bought and 1,231,109 shares sold, net +505,721 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 70 holders
| FMR LLC | 0.00% | Add +24.3% | 1,516,335 | $70.0M |
| Vida Ventures Advisors, LLC | 32.46% | No change | 1,028,674 | $47.5M |
| EcoR1 Capital, LLC | 1.57% | No change | 849,143 | $39.2M |
| Farallon Capital Management, L.L.C. | 0.17% | Add +37.0% | 713,050 | $32.9M |
| 5AM Venture Management, LLC | 6.57% | Reduce -7.7% | 596,660 | $27.5M |
| Paradigm Biocapital Advisors LP | 0.78% | New | 485,105 | $22.4M |
| Vanguard Group Inc. | 0.00% | Reduce -18.5% | 361,048 | $16.7M |
| Balyasny Asset Management L.P. | 0.03% | Add +36.9% | 247,000 | $11.4M |
| BlackRock, Inc. | 0.00% | Add +58.5% | 195,059 | $9.0M |
| Susquehanna International Group, LLP | 0.01% | Add +165.3% | 166,452 | $7.7M |
| Ikarian Capital, LLC | 1.88% | Reduce -46.7% | 142,328 | $6.6M |
| Woodline Partners LP | 0.04% | Add +98.8% | 130,109 | $6.0M |
| Invesco Ltd. | 0.00% | New | 128,178 | $5.9M |
| Tang Capital Management LLC | 0.24% | No change | 79,166 | $3.7M |
| Atlas Venture Life Science Advisors, LLC | 0.44% | Reduce -79.3% | 78,447 | $3.6M |
| Geode Capital Management, LLC | 0.00% | Add +0.9% | 77,584 | $3.6M |
| Walleye Capital LLC | 0.04% | Add +0.8% | 73,517 | $3.4M |
| ADAR1 Capital Management, LLC | 0.58% | Reduce -53.8% | 58,708 | $2.7M |
| Affinity Asset Advisors, LLC | 0.46% | No change | 58,331 | $2.7M |
| Renaissance Technologies | 0.00% | Reduce -15.3% | 48,173 | $2.2M |
| Boothbay Fund Management, LLC | 0.06% | Reduce -45.4% | 41,307 | $1.9M |
| Aldebaran Capital, LLC | 1.81% | Reduce -1.9% | 41,207 | $1.9M |
| Acuta Capital Partners, LLC | 1.53% | Add +140.9% | 33,008 | $1.5M |
| Soleus Capital Management, L.P. | 0.11% | New | 31,841 | $1.5M |
| Qube Research & Technologies Ltd | 0.00% | New | 29,757 | $1.4M |
| Jane Street Group, LLC | 0.00% | New | 29,702 | $1.4M |
| Millennium Management | 0.00% | New | 28,793 | $1.3M |
| State Street Corp. | 0.00% | Add +134.7% | 27,405 | $1.3M |
| Dimensional Fund Advisors LP | 0.00% | Add +10.1% | 26,264 | $1.2M |
| Verition Fund Management LLC | 0.01% | Reduce -77.2% | 26,171 | $1.2M |
| Exome Asset Management LLC | 0.91% | Reduce -28.2% | 26,081 | $1.2M |
| Informed Momentum Co LLC | 0.16% | Reduce -4.3% | 25,061 | $1.2M |
| Goldman Sachs Group Inc. | 0.00% | New | 24,310 | $1.1M |
| Wells Fargo & Company | 0.00% | Reduce -11.6% | 18,513 | $855K |
| Morgan Stanley | 0.00% | Add +30.7% | 17,415 | $804K |
| Schonfeld Strategic Advisors LLC | 0.01% | Add +15.6% | 17,345 | $801K |
| Artia Global Partners LP | 0.31% | New | 16,650 | $769K |
| Barclays PLC | 0.00% | Add +1008.5% | 15,974 | $738K |
| Northern Trust Corp. | 0.00% | Add +52.2% | 14,682 | $678K |
| Bridgeway Capital Management, LLC | 0.02% | Reduce -28.0% | 14,668 | $677K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +88.1% | 14,485 | $669K |
| 683 Capital Management, LLC | 0.07% | New | 14,027 | $648K |
| Citigroup Inc. | 0.00% | Add +15.1% | 13,583 | $627K |
| UBS Group AG | 0.00% | Add +359033.3% | 10,774 | $497K |
| Clarius Group, LLC | 0.03% | New | 10,130 | $468K |
| Fred Alger Management, LLC | 0.00% | New | 10,057 | $464K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 9,600 | $443K |
| Stempoint Capital LP | 0.11% | New | 9,434 | $436K |
| Prelude Capital Management, LLC | 0.03% | No change | 7,841 | $362K |
| Ameriprise Financial Inc. | 0.00% | New | 7,516 | $347K |
| Aster Capital Management (DIFC) Ltd | 0.12% | No change | 6,768 | $312K |
| Jefferies Financial Group Inc. | 0.00% | New | 5,400 | $249K |
| Commonwealth Equity Services, LLC | 0.00% | New | 5,000 | $231K |
| Raymond James Financial Inc. | 0.00% | — | 4,939 | $228K |
| Charles Schwab Investment Management Inc. | 0.00% | New | 4,711 | $218K |
| Clearstead Advisors, LLC | 0.00% | Reduce -2.1% | 3,833 | $177K |
| China Universal Asset Management Co., Ltd. | 0.01% | New | 3,128 | $144K |
| Virtus Advisers, LLC | 0.03% | New | 1,533 | $71K |
| Nordwand Advisors, LLC | 0.03% | No change | 1,500 | $69K |
| JPMorgan Chase & Co. | 0.00% | Add +5554.6% | 1,244 | $57K |
| Cwm, LLC | 0.00% | No change | 531 | $25K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | New | 492 | $23K |
| GF Fund Management Co. LTD. | 0.00% | — | 310 | $14K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 216 | $10K |
| BNP Paribas Financial Markets | 0.00% | New | 169 | $8K |
| Bank of America Corp. | 0.00% | Reduce -20.4% | 129 | $6K |
| Rhumbline Advisers | 0.00% | No change | 100 | $5K |
| SBI Securities Co., Ltd. | 0.00% | — | 87 | $4K |
| US Bancorp \de | 0.00% | Add +115.6% | 69 | $3K |
| National Bank of Canada | 0.00% | Add +25.8% | 39 | $2K |
"% of holder's portfolio" is TECX's weight in each manager's 13F, not the share of Tectonic Therapeutic Inc. the manager owns.