STRO SUTRO BIOPHARMA, INC.: institutional ownership and insider trading
100 funds reported holding $549M of SUTRO BIOPHARMA, INC. in their latest 13F filings; in Q2 2026 funds net bought $77.9M, with 41 new positions and 14 funds selling out; over the last 12 months insiders bought $0 and sold $0 on the open market.
Famous investors holding STRO
- Izzy Englander (Millennium Management): $12.2M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $6.70M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $3.39M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $2.87M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $1.00M, 0.0% of the portfolio
Largest institutional holders of STRO
- PERCEPTIVE ADVISORS LLC — $43.3M
- BVF INC/IL — $41.6M
- Affinity Asset Advisors, LLC — $38.9M
- BlackRock, Inc. (BLK) — $37.3M
- Samsara BioCapital, LLC — $35.3M
- Kynam Capital Management, LP — $29.0M
- ORBIMED ADVISORS LLC — $24.7M
- BALYASNY ASSET MANAGEMENT L.P. — $23.6M
- VANGUARD CAPITAL MANAGEMENT LLC — $23.0M
- EVENTIDE ASSET MANAGEMENT, LLC — $19.4M
Recent STRO insider trades
- Oct 15, 2025: Pauling David bought 12,504 shares ($10.0K)
- Oct 15, 2025: Gerber Hans-Peter bought 17,000 shares ($13.6K)
- Oct 15, 2025: Chung Jane bought 12,500 shares ($10.0K)
- Oct 15, 2025: Chow Gregory K. bought 19,750 shares ($16.0K)
5%+ owners
- Perceptive Advisors LLC: 7.9% (Schedule 13G/A, filed Aug 14, 2026)
- Affinity Asset Advisors, LLC: 6.5% (Schedule 13G/A, filed May 14, 2026)
- BlackRock, Inc.: 6.4% (Schedule 13G, filed Jul 30, 2026)
- Srinivas Akkaraju: 6.4% (Schedule 13G, filed May 15, 2026)