Boston Beer Company Inc. Class ASAM
13F holders, Q3 2025 (September 30)357holders +9
66new positions
57sold out
10famous investors
$211.44avg. 13F price*
At the end of Q3 2025, 357 institutions reported holding Boston Beer Company Inc. Class A (SAM) in their 13F filings, up 9 from Q2 2025. 66 opened new positions and 57 sold out. The largest holders were Vanguard Group Inc. ($200.9M), BlackRock, Inc. ($165.4M) and AQR Capital Management ($136.8M). 10 famous investors held it, including Joel Greenblatt (0.2% of Gotham Asset Management's portfolio), Cliff Asness (0.1% of AQR Capital Management's portfolio) and Mario Gabelli (0.0% of GAMCO Investors's portfolio).
- Company
- Boston Beer Company Inc. Class A
- CUSIP
- 100557107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 66 | $35.1M |
| Exits | 57 | $104.2M |
All 13F filers, Q2 2025 → Q3 2025: 1,631,196 shares bought and 1,451,010 shares sold, net +180,186 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 357 holders
| Vanguard Group Inc. | 0.00% | Add +4.8% | 950,131 | $200.9M |
| BlackRock, Inc. | 0.00% | Reduce -14.4% | 782,344 | $165.4M |
| AQR Capital Management | 0.09% | Add +340.4% | 647,060 | $136.8M |
| FMR LLC | 0.00% | Reduce -14.8% | 389,820 | $82.4M |
| Dimensional Fund Advisors LP | 0.01% | Add +1.3% | 265,779 | $56.2M |
| State Street Corp. | 0.00% | Reduce -5.5% | 263,263 | $55.7M |
| Arrowstreet Capital, Limited Partnership | 0.03% | Add +8.1% | 258,403 | $54.6M |
| Morgan Stanley | 0.00% | Add +150.6% | 233,767 | $49.4M |
| Fisher Asset Management | 0.02% | Reduce -0.3% | 231,467 | $48.9M |
| UBS Group AG | 0.01% | Add +16.5% | 223,664 | $47.3M |
| Gotham Asset Management | 0.20% | Add +1752.2% | 213,266 | $45.1M |
| Cooper Creek Partners Management LLC | 1.15% | Reduce -35.6% | 145,939 | $30.9M |
| Geode Capital Management, LLC | 0.00% | Add +0.4% | 143,372 | $30.3M |
| Quantinno Capital Management LP | 0.08% | Add +76.0% | 136,114 | $28.8M |
| Global Alpha Capital Management Ltd. | 1.59% | Add +15.3% | 131,204 | $27.7M |
| American Century Companies Inc. | 0.01% | Add +35.7% | 123,034 | $26.0M |
| Invesco Ltd. | 0.00% | Add +12.5% | 114,889 | $24.3M |
| Southeastern Asset Management Inc. | 1.18% | Add +2.8% | 109,238 | $23.1M |
| Acadian Asset Management LLC | 0.04% | Add +58.9% | 106,674 | $22.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.5% | 95,906 | $20.3M |
| Ameriprise Financial Inc. | 0.00% | Add +79.2% | 91,909 | $19.4M |
| Southernsun Asset Management, LLC | 2.47% | Reduce -1.6% | 90,168 | $19.1M |
| Renaissance Technologies | 0.02% | Reduce -4.7% | 87,079 | $18.4M |
| Northern Trust Corp. | 0.00% | Reduce -0.3% | 75,171 | $15.9M |
| D. E. Shaw & Co. | 0.01% | Reduce -22.8% | 72,355 | $15.3M |
| Millennium Management | 0.01% | Reduce -68.0% | 71,943 | $15.2M |
| Loomis Sayles & Co. L P | 0.02% | Add +2.4% | 67,189 | $14.2M |
| Calamos Advisors LLC | 0.08% | Add +12.1% | 65,364 | $13.8M |
| Qube Research & Technologies Ltd | 0.02% | Reduce -50.5% | 55,703 | $11.8M |
| Bank of New York Mellon Corp | 0.00% | Reduce -22.0% | 54,954 | $11.6M |
| Voloridge Investment Management, LLC | 0.04% | Add +182.7% | 51,131 | $10.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +3.4% | 50,327 | $10.6M |
| Pacer Advisors, Inc. | 0.03% | Reduce -6.2% | 46,839 | $9.9M |
| First Trust Advisors LP | 0.01% | Add +195.6% | 46,283 | $9.8M |
| Crawford Fund Management, LLC | 4.88% | Reduce -15.4% | 42,686 | $9.0M |
| Bank of America Corp. | 0.00% | Reduce -23.8% | 40,839 | $8.6M |
| Trexquant Investment LP | 0.09% | Reduce -41.9% | 40,167 | $8.5M |
| Ieq Capital, LLC | 0.03% | Add +1140.3% | 39,354 | $8.3M |
| Savoir Faire Capital Management, L.P. | 2.94% | Add +28.4% | 38,825 | $8.2M |
| Franklin Resources Inc. | 0.00% | Add +54.6% | 37,322 | $7.9M |
| Engineers Gate Manager LP | 0.09% | Reduce -7.9% | 36,864 | $7.8M |
| Gabelli Funds LLC | 0.04% | Add +62.4% | 30,700 | $6.5M |
| Man Group plc | 0.01% | Reduce -20.8% | 30,290 | $6.4M |
| Algert Global LLC | 0.10% | Add +97.7% | 28,205 | $6.0M |
| WINTON GROUP Ltd | 0.22% | Add +1152.1% | 28,085 | $5.9M |
| Ontario Teachers Pension Plan Board | 0.13% | Reduce -13.1% | 26,141 | $5.5M |
| Panagora Asset Management Inc. | 0.02% | New | 24,806 | $5.2M |
| Rhumbline Advisers | 0.00% | Add +2.7% | 24,059 | $5.1M |
| JPMorgan Chase & Co. | 0.00% | Add +0.7% | 22,398 | $4.7M |
| GAMCO Investors | 0.05% | Add +29.6% | 22,294 | $4.7M |
| Gagnon Securities LLC | 0.91% | Reduce -14.1% | 21,508 | $4.5M |
| Prudential Financial Inc. | 0.01% | Reduce -67.0% | 20,680 | $4.4M |
| RK Asset Management, LLC | 3.65% | Add +1.6% | 19,015 | $4.0M |
| Cwm, LLC | 0.01% | Add +1467.7% | 18,217 | $3.9M |
| Alliancebernstein L.P. | 0.00% | Add +93.4% | 18,157 | $3.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -41.2% | 17,964 | $3.8M |
| Marshall Wace, LLP | 0.00% | Reduce -46.3% | 17,635 | $3.7M |
| Principal Financial Group Inc. | 0.00% | Reduce -6.0% | 17,583 | $3.7M |
| Nuveen, LLC | 0.00% | Reduce -1.3% | 17,440 | $3.7M |
| Barclays PLC | 0.00% | Reduce -67.3% | 17,097 | $3.6M |
| Swiss National Bank | 0.00% | Add +0.6% | 16,700 | $3.5M |
| Cerity Partners LLC | 0.01% | New | 16,630 | $3.5M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +6.2% | 16,011 | $3.4M |
| Dark Forest Capital Management LP | 0.12% | Reduce -42.0% | 15,493 | $3.3M |
| Creative Planning | 0.00% | Add +390.4% | 14,834 | $3.1M |
| Redwood Investment Management, LLC | 0.34% | Reduce -15.7% | 14,662 | $3.1M |
| Atom Investors LP | 0.23% | Add +40.9% | 14,188 | $3.0M |
| Maverick Capital | 0.04% | New | 14,039 | $3.0M |
| Legal & General Group Plc | 0.00% | Reduce -7.7% | 13,506 | $2.9M |
| Two Sigma Investments, LP | 0.00% | New | 12,594 | $2.7M |
| Russell Investments Group, Ltd. | 0.00% | Add +37.8% | 12,139 | $2.6M |
| New York State Teachers Retirement System | 0.01% | Add +4.9% | 12,316 | $2.6M |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Add +445.8% | 11,036 | $2.4M |
| Bridgewater Associates | 0.01% | New | 10,825 | $2.3M |
| Cardinal Capital Management | 0.31% | Add +12.8% | 10,746 | $2.3M |
| Arax Advisory Partners | 0.03% | Add +7282.1% | 9,892 | $2.1M |
| Wedge Capital Management L L P | 0.03% | Add +11.5% | 9,628 | $2.0M |
| Retirement Systems of Alabama | 0.01% | Reduce -5.0% | 9,561 | $2.0M |
| Royal Bank of Canada | 0.00% | Reduce -2.5% | 9,545 | $2.0M |
| BCGM Wealth Management, LLC | 0.52% | Add +167.0% | 9,491 | $2.0M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Reduce -1.8% | 9,217 | $1.9M |
| California State Teachers Retirement System | 0.00% | Reduce -6.0% | 7,911 | $1.7M |
| Clough Capital Partners L P | 0.14% | New | 7,440 | $1.6M |
| CANADA LIFE ASSURANCE Co | 0.00% | No change | 7,033 | $1.5M |
| CenterBook Partners LP | 0.07% | Reduce -28.4% | 7,050 | $1.5M |
| T. Rowe Price Associates Inc. | 0.00% | Add +5.6% | 7,035 | $1.5M |
| Summit Trail Advisors, LLC | 0.02% | Add +149.4% | 7,032 | $1.5M |
| Oak Thistle LLC | 0.22% | Add +540.3% | 6,793 | $1.4M |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -5.8% | 6,760 | $1.4M |
| Teacher Retirement System of Texas | 0.01% | Reduce -0.9% | 6,634 | $1.4M |
| LPL Financial LLC | 0.00% | Add +39.3% | 6,440 | $1.4M |
| Mercer Global Advisors Inc. | 0.00% | Add +417.3% | 6,384 | $1.3M |
| Asset Management Group, Inc. | 0.22% | No change | 6,331 | $1.3M |
| Wells Fargo & Company | 0.00% | Reduce -9.6% | 6,122 | $1.3M |
| Squarepoint Ops LLC | 0.00% | Add +168.9% | 6,088 | $1.3M |
| Caprock Group, LLC | 0.03% | — | 5,769 | $1.3M |
| Los Angeles Capital Management LLC | 0.00% | New | 6,028 | $1.3M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -6.8% | 5,866 | $1.2M |
| Mariner, LLC | 0.00% | New | 5,828 | $1.2M |
| State of Wisconsin Investment Board | 0.00% | Reduce -25.5% | 5,819 | $1.2M |
"% of holder's portfolio" is SAM's weight in each manager's 13F, not the share of Boston Beer Company Inc. Class A the manager owns.