SGI SOMNIGROUP INTERNATIONAL INC.: institutional ownership and insider trading
581 funds reported holding $19.5B of SOMNIGROUP INTERNATIONAL INC. in their latest 13F filings; in Q2 2026 funds net bought $1.24B, with 96 new positions and 90 funds selling out; over the last 12 months insiders bought $4.87M and sold $446K on the open market.
Famous investors holding SGI
- Dan Loeb (Third Point): $202M, 4.3% of the portfolio
- Dan Sundheim (D1 Capital Partners): $390M, 1.1% of the portfolio
- Ken Griffin (Citadel Advisors): $204M, 0.0% of the portfolio
- George Soros (Soros Fund Management): $1.06M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $828K, 0.0% of the portfolio
- Ray Dalio (Bridgewater Associates): $473K, 0.0% of the portfolio
Largest institutional holders of SGI
- FMR LLC — $2.06B
- VANGUARD GROUP INC — $1.68B
- BlackRock, Inc. (BLK) — $1.51B
- VANGUARD CAPITAL MANAGEMENT LLC — $718M
- Select Equity Group, L.P. — $697M
- WINDACRE PARTNERSHIP LLC — $660M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $645M
- STATE STREET CORP (STT, STT-PG) — $571M
- Linonia Partnership LP — $519M
- BROWNING WEST LP — $499M
Recent SGI insider trades
- Aug 27, 2026: Thompson Scott L bought 30,000 shares ($1.89M)
- May 22, 2026: Rusing Steven H sold 6,657 shares ($446K)
- Dec 2, 2025: Dyer Simon bought 32,000 shares ($2.99M)
- Sep 5, 2025: Gates Cathy R. sold 6,016 shares ($522K)
Members of Congress trading SGI
- Aug 25, 2026: April McClain Delaney sold $100K–$250K
- Jul 30, 2026: April McClain Delaney bought $15.0K–$50.0K
- Mar 31, 2026: April McClain Delaney bought $1.00K–$15.0K
- Mar 16, 2026: April McClain Delaney bought $1.00K–$15.0K
- Mar 13, 2026: April McClain Delaney bought $1.00K–$15.0K
- Mar 9, 2026: April McClain Delaney bought $1.00K–$15.0K
- Feb 9, 2026: April McClain Delaney sold part of $1.00K–$15.0K
- Jan 22, 2026: April McClain Delaney sold part of $1.00K–$15.0K
- Jan 12, 2026: April McClain Delaney sold part of $1.00K–$15.0K
- Oct 31, 2025: Lisa C. McClain sold $1.00K–$15.0K
5%+ owners
- FMR LLC: 12.5% (Schedule 13G/A, filed Aug 6, 2026)
- Vanguard Capital Management: 5.1% (Schedule 13G, filed Apr 30, 2026)