Institutional Ownership
Boston Beer Inc
CUSIP 100557107CL ASAMQ1 2026
13D / 13G Filings
38
Schedule 13D/13G on record
Beneficial Filers
11
Distinct reporting persons
Largest Stake
24.3%
Max % of class reported
Institutional Holders
359
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
38 filings · latest Feb 12, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 12, 2026 | Aqr Capital Management, LLC | 13G/A | 5.1% | 440.2K | SEC |
| 2 | Feb 11, 2026 | C. James Koch | 13G/A | 21.6% | 2.27M | SEC |
| 3 | Jan 30, 2026 | The Vanguard Group | 13G/A | 12.1% | 1.04M | SEC |
| 4 | Nov 14, 2025 | Aqr Capital Management, LLC | 13G | 7.3% | 647.1K | SEC |
| 5 | Jun 5, 2025 | The Vanguard Group | 13G/A | 10.1% | 912.4K | SEC |
| 6 | May 14, 2025 | T. Rowe Price Investment Management, Inc. | 13G/A | 0.6% | 52.7K | SEC |
| 7 | Feb 7, 2025 | C. James Koch | 13G/A | 20.0% | 2.27M | SEC |
| 8 | Nov 14, 2024 | T. Rowe Price Investment Management, Inc. | 13G/A | 7.0% | 674.1K | SEC |
| 9 | Nov 12, 2024 | Fmr LLC | 13G/A | 5.2% | — | SEC |
| 10 | Feb 14, 2024 | T. Rowe Price Investment Management, Inc. | 13G/A | 9.2% | 931.1K | SEC |
28 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Boston Beer Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 770.3K | $177.47M |
| 2 | Aqr Capital Management LLC | 652.0K | $150.22M |
| 3 | American Century Companies Inc | 288.1K | $66.37M |
| 4 | Dimensional Fund Advisors LP | 273.6K | $63.04M |
| 5 | State Street Corp | 255.2K | $58.80M |
| 6 | Arrowstreet Capital, Limited Partnership | 245.2K | $56.51M |
| 7 | Quantinno Capital Management LP | 230.6K | $53.13M |
| 8 | Ubs Group AG | 218.6K | $50.37M |
| 9 | Fmr LLC | 195.4K | $45.01M |
| 10 | Gotham Asset Management, LLC | 170.3K | $39.24M |