The Boston Beer Company, Inc. (SAM) ownership: Top institutional holder: VANGUARD GROUP INC ($202.78M). Insider activity: Net Seller (3 buys, 17 sells). 2 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 1039184.00 | $202.78M | 2025-12-31 |
| BlackRock, Inc. | 770250.00 | $177.47M | 2026-03-31 |
| AQR CAPITAL MANAGEMENT LLC | 651984.00 | $150.22M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 634469.00 | $146.18M | 2026-03-31 |
| BlackRock Fund Advisors | 527975.00 | $89.68M | 2016-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 340903.00 | $78.54M | 2026-03-31 |
| AMERICAN CENTURY COMPANIES INC | 288084.00 | $66.37M | 2026-03-31 |
| DIMENSIONAL FUND ADVISORS LP | 273612.00 | $63.04M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-27 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.