SMMT Summit Therapeutics Inc.: institutional ownership and insider trading
272 funds reported holding $2.29B of Summit Therapeutics Inc. in their latest 13F filings; in Q2 2026 funds net bought $287M, with 54 new positions and 35 funds selling out; over the last 12 months insiders bought $104M and sold $0 on the open market.
Famous investors holding SMMT
- Izzy Englander (Millennium Management): $34.2M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $18.1M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $10.2M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $41.9M, 0.0% of the portfolio
Largest institutional holders of SMMT
- BAKER BROS. ADVISORS LP — $478M
- VANGUARD GROUP INC — $195M
- FMR LLC — $146M
- STATE STREET CORP (STT, STT-PG) — $139M
- BlackRock, Inc. (BLK) — $139M
- VANGUARD CAPITAL MANAGEMENT LLC — $83.6M
- UBS Group AG (UBS) — $77.3M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $73.5M
- GOLDMAN SACHS GROUP INC (GS, GSCE, GS-PA, GS-PC, GS-PD) — $65.8M
- PRICE T ROWE ASSOCIATES INC /MD/ — $56.7M
Recent SMMT insider trades
- Jun 12, 2026: Duggan Robert W bought 3,810,000 shares ($50.0M)
- Jun 12, 2026: Zanganeh Mahkam bought 3,810,000 shares ($50.0M)
- Jun 4, 2026: Duggan Robert W bought 100,000 shares ($1.46M)
- Jun 4, 2026: Zanganeh Mahkam bought 100,000 shares ($1.46M)