Who owns BOSTON BEER CO INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of SAM from SEC Form 13F filings across 328 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 328 institutions disclosed 8.6M shares of BOSTON BEER CO INC worth $1.53B — about 83.2% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
328
13F holders
$1.53B
value, 2026 filers
83.2%
of shares outstanding (8.6M sh)
52
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of SAM's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1.0M | $179.7M | 0.0% | 9.8% | +31.8% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 609,360 | $107.9M | 0.0% | 5.9% | -4.0% |
| 3 | AQR CAPITAL MANAGEMENT LLC | 539,988 | $95.6M | 0.0% | 5.2% | -17.2% |
| 4 | UBS Group AG | 434,656 | $76.9M | 0.0% | 4.2% | +98.8% |
| 5 | AMERICAN CENTURY COMPANIES INC | 385,326 | $68.2M | 0.0% | 3.7% | +33.8% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 345,822 | $61.2M | 0.0% | 3.3% | +1.4% |
| 7 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 321,080 | $56.8M | 0.0% | 3.1% | +30.9% |
| 8 | DIMENSIONAL FUND ADVISORS LP | 320,885 | $56.8M | 0.0% | 3.1% | +17.3% |
| 9 | STATE STREET CORP | 314,732 | $55.8M | 0.0% | 3% | +23.3% |
| 10 | MILLENNIUM MANAGEMENT LLC | 283,512 | $50.2M | 0.0% | 2.7% | +193.4% |
| 11 | Global Alpha Capital Management Ltd. | 267,567 | $47.4M | 2.8% | 2.6% | +81.4% |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 205,368 | $36.4M | 0.0% | 2% | +44.5% |
| 13 | T. Rowe Price Investment Management, Inc. | 199,420 | $35.3M | 0.0% | 1.9% | +153.9% |
| 14 | SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 146,043 | $25.9M | 1.3% | 1.4% | +23.3% |
| 15 | SOUTHERNSUN ASSET MANAGEMENT, LLC | 131,877 | $23.3M | 3.1% | 1.3% | +76.3% |
| 16 | GOLDMAN SACHS GROUP INC | 130,819 | $23.2M | 0.0% | 1.3% | -9.8% |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 126,182 | $22.3M | 0.0% | 1.2% | +17.9% |
| 18 | NEUBERGER BERMAN GROUP LLCNEW | 117,548 | $20.9M | 0.0% | 1.1% | new |
| 19 | MORGAN STANLEY | 104,302 | $18.5M | 0.0% | 1% | -22.5% |
| 20 | AMERIPRISE FINANCIAL INC | 103,039 | $18.2M | 0.0% | 1% | +12.6% |
| 21 | Quantinno Capital Management LP | 102,562 | $18.2M | 0.0% | 1% | -55.5% |
| 22 | RENAISSANCE TECHNOLOGIES LLC | 102,179 | $18.1M | 0.0% | 1% | +9.0% |
| 23 | D. E. Shaw & Co., Inc. | 99,454 | $17.6M | 0.0% | 1% | +113.4% |
| 24 | NORTHERN TRUST CORP | 98,799 | $17.5M | 0.0% | 1% | +25.1% |
| 25 | Trexquant Investment LP | 73,254 | $13.0M | 0.1% | 0.7% | +145.9% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.