SAM The Boston Beer Company, Inc.
The Boston Beer Company, Inc. (SAM) Institutional Ownership
What the institutions did with SAM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 1.0M | 11.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 609.4K | 7.1% |
| AQR CAPITAL MANAGEMENT LLC | 540.0K | 6.3% |
| UBS Group AG | 434.7K | 5.0% |
| AMERICAN CENTURY COMPANIES INC | 385.3K | 4.5% |
| VANGUARD CAPITAL MANAGEMENT LLC | 345.8K | 4.0% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 321.1K | 3.7% |
| DIMENSIONAL FUND ADVISORS LP | 320.9K | 3.7% |
| STATE STREET CORP | 314.7K | 3.6% |
| MILLENNIUM MANAGEMENT LLC | 283.5K | 3.3% |
| Global Alpha Capital Management Ltd. | 267.6K | 3.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 205.4K | 2.4% |
| T. Rowe Price Investment Management, Inc. | 199.4K | 2.3% |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 146.0K | 1.7% |
| SOUTHERNSUN ASSET MANAGEMENT, LLC | 131.9K | 1.5% |
| GOLDMAN SACHS GROUP INC | 130.8K | 1.5% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 126.2K | 1.5% |
| NEUBERGER BERMAN GROUP LLC | 117.5K | 1.4% |
| MORGAN STANLEY | 104.3K | 1.2% |
| AMERIPRISE FINANCIAL INC | 103.0K | 1.2% |
| Quantinno Capital Management LP | 102.6K | 1.2% |
| RENAISSANCE TECHNOLOGIES LLC | 102.2K | 1.2% |
| D. E. Shaw & Co., Inc. | 99.5K | 1.2% |
| NORTHERN TRUST CORP | 98.8K | 1.1% |
| Trexquant Investment LP | 73.3K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 770.3K | 1.0M | +245.0K |
| UBS Group AG | Increased | 218.6K | 434.7K | +216.1K |
| MILLENNIUM MANAGEMENT LLC | Increased | 96.6K | 283.5K | +186.9K |
| Gotham Asset Management, LLC | Reduced | 170.3K | 3.2K | -167.1K |
| FMR LLC | Reduced | 195.4K | 60.6K | -134.7K |
| Quantinno Capital Management LP | Reduced | 230.6K | 102.6K | -128.0K |
| T. Rowe Price Investment Management, Inc. | Increased | 78.5K | 199.4K | +120.9K |
| Global Alpha Capital Management Ltd. | Increased | 147.5K | 267.6K | +120.0K |
| NEUBERGER BERMAN GROUP LLC | New | 0 | 117.5K | +117.5K |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 652.0K | 540.0K | -112.0K |
| AMERICAN CENTURY COMPANIES INC | Increased | 288.1K | 385.3K | +97.2K |
| Woodson Capital Management, LP | Sold Out | 90.0K | 0 | -90.0K |
| Man Group plc | Sold Out | 77.5K | 0 | -77.5K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 245.2K | 321.1K | +75.8K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 142.1K | 205.4K | +63.3K |
| WORLDQUANT MILLENNIUM ADVISORS LLC | New | 0 | 62.7K | +62.7K |
| STATE STREET CORP | Increased | 255.2K | 314.7K | +59.5K |
| SOUTHERNSUN ASSET MANAGEMENT, LLC | Increased | 74.8K | 131.9K | +57.1K |
| Invesco Ltd. | Reduced | 115.6K | 58.6K | -57.0K |
| D. E. Shaw & Co., Inc. | Increased | 46.6K | 99.5K | +52.8K |
| Qube Research & Technologies Ltd | Reduced | 111.3K | 62.6K | -48.7K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 273.6K | 320.9K | +47.3K |
| Trexquant Investment LP | Increased | 29.8K | 73.3K | +43.5K |
| Corient Private Wealth LP | Reduced | 45.4K | 4.2K | -41.2K |
| Crawford Fund Management, LLC | Sold Out | 39.4K | 0 | -39.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.