SAM BOSTON BEER CO INC: institutional ownership and insider trading
354 funds reported holding $1.81B of BOSTON BEER CO INC in their latest 13F filings; in Q2 2026 funds net bought $159M, with 43 new positions and 81 funds selling out; over the last 12 months insiders bought $0 and sold $642K on the open market.
Famous investors holding SAM
- Mason Hawkins (Southeastern Asset Management): $25.9M, 1.4% of the portfolio
- Izzy Englander (Millennium Management): $50.2M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $18.1M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $17.6M, 0.0% of the portfolio
- Ray Dalio (Bridgewater Associates): $3.30M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $18.4M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $2.59M, 0.0% of the portfolio
Largest institutional holders of SAM
- VANGUARD GROUP INC — $203M
- BlackRock, Inc. (BLK) — $180M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $108M
- AQR CAPITAL MANAGEMENT LLC — $95.6M
- UBS Group AG (UBS) — $77.5M
- AMERICAN CENTURY COMPANIES INC — $68.2M
- VANGUARD CAPITAL MANAGEMENT LLC — $61.2M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP — $56.8M
- DIMENSIONAL FUND ADVISORS LP — $56.8M
- STATE STREET CORP (STT, STT-PG) — $55.8M
Recent SAM insider trades
- Nov 4, 2025: Spillane Michael sold 3,120 shares ($642K)
- Aug 8, 2025: Fritsch Annette N sold 600 shares ($132K)
- Mar 13, 2025: Valette Jean Michel sold 3,500 shares ($800K)
- Jan 2, 2025: O'Boyle Carolyn L. sold 62 shares ($18.7K)
5%+ owners
- BlackRock, Inc.: 11.3% (Schedule 13G/A, filed Jul 8, 2026)
- Vanguard Portfolio Management: 7.6% (Schedule 13G, filed Apr 29, 2026)
- AQR Capital Management, LLC: 6.5% (Schedule 13G/A, filed Aug 13, 2026)