TECX Tectonic Therapeutic, Inc.: institutional ownership and insider trading
130 funds reported holding $502M of Tectonic Therapeutic, Inc. in their latest 13F filings; in Q2 2026 funds net sold $2.19M, with 22 new positions and 10 funds selling out; over the last 12 months insiders bought $182K and sold $651K on the open market.
TECX revenue and earnings
- Quarter ended Jun 30, 2026: revenue n/a, net income −$22.3M, EPS -1.18
- Quarter ended Mar 31, 2026: revenue n/a, net income −$25.2M, EPS -1.34
- Quarter ended Dec 31, 2025: revenue n/a, net income −$74.1B, EPS -1.03
- Quarter ended Sep 30, 2025: revenue n/a, net income −$19.0M, EPS -1.02
Famous investors holding TECX
- D. E. Shaw (D. E. Shaw & Co.): $6.41M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $5.69M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $3.69M, 0.0% of the portfolio
Largest institutional holders of TECX
- FMR LLC — $97.3M
- TCG Crossover Management, LLC — $41.4M
- Aberdeen Group plc — $39.3M
- BlackRock, Inc. (BLK) — $29.7M
- First Light Asset Management, LLC — $27.5M
- BAKER BROS. ADVISORS LP — $20.9M
- 5AM Venture Management, LLC — $20.9M
- BRAIDWELL LP — $20.5M
- VANGUARD CAPITAL MANAGEMENT LLC — $16.8M
- Vestal Point Capital, LP — $14.6M
Recent TECX insider trades
- Sep 30, 2026: McNamara Peter sold 536 shares ($12.3K)
- Aug 25, 2026: McNamara Peter sold 43 shares ($1.57K)
- Aug 12, 2026: McNamara Peter sold 43 shares ($1.51K)
- Jun 30, 2026: McNamara Peter sold 172 shares ($6.02K)
5%+ owners
- Timothy A. Springer: 31.5% (Schedule 13D/A, filed Apr 7, 2025)
- FMR LLC: 15.0% (Schedule 13G/A, filed May 12, 2025)
- Terrance McGuire: 6.3% (Schedule 13D/A, filed Apr 7, 2025)
- Chen Yu: 6.2% (Schedule 13G, filed Feb 27, 2026)
- Aberdeen Group plc: 6.1% (Schedule 13G, filed Jan 29, 2026)
- VV Manager II, LLC: 5.6% (Schedule 13D/A, filed Feb 7, 2025)
Who owns the most TECX stock?
The largest institutional holders of Tectonic Therapeutic, Inc. in the latest 13F filings are FMR LLC ($97.3M), TCG Crossover Management, LLC ($41.4M), Aberdeen Group plc ($39.3M).
Are insiders buying or selling TECX?
Over the last 12 months insiders bought $182K and sold $651K of Tectonic Therapeutic, Inc. stock on the open market (SEC Form 4).
Which famous investors own TECX?
D. E. Shaw, Izzy Englander, Ken Griffin.
Which ETFs hold TECX?
5 ETFs and mutual funds hold it among their top 100 positions, including FBIOX, FBTAX, SBIO, LYFAX.