BOSTON BEER COMPANY INC-A (SAM) Institutional Shareholders
BOSTON BEER COMPANY INC-A (SAM) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.49B in SAM holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of SAM tracked by InsiderSet, reporting ownership valued at approximately $179.73M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $188.60M, representing an estimated gain of +4.94% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 54% of the total disclosed SAM value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Aqr Capital Management Llc, and several other long-term asset managers with concentrated positions in BOSTON BEER COMPANY INC-A (SAM).
This page ranks the largest institutional SAM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
323
Total Reported Value
$1.49B
Largest Holder
Blackrock, Inc.
Largest Position
$179.73M
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
48
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 1,015,254 | $179,730,458 | $188,603,736 | +$8,873,278 | +4.94% | |
| Vanguard Portfolio Management Llc | 0.00% | 609,360 | $107,875,001 | $113,200,807 | +$5,325,806 | +4.94% | |
| Aqr Capital Management Llc | 0.03% | 539,988 | $95,594,076 | $100,313,571 | +$4,719,495 | +4.94% | |
| Ubs Group Ag | 0.01% | 434,656 | $76,947,151 | $80,746,045 | +$3,798,894 | +4.94% | |
| American Century Companies Inc | 0.03% | 385,326 | $68,214,262 | $71,582,011 | +$3,367,749 | +4.94% | |
| Vanguard Capital Management Llc | 0.00% | 345,822 | $61,220,869 | $64,243,353 | +$3,022,484 | +4.94% | |
| Arrowstreet Capital, Limited Partnership | 0.03% | 321,080 | $56,840,792 | $59,647,032 | +$2,806,240 | +4.94% | |
| Dimensional Fund Advisors Lp | 0.01% | 320,885 | $56,806,271 | $59,610,806 | +$2,804,535 | +4.94% | |
| State Street Corp | 0.00% | 314,732 | $55,807,630 | $58,467,764 | +$2,660,134 | +4.77% | |
| Millennium Management Llc | 0.03% | 283,512 | $50,190,129 | $52,668,024 | +$2,477,895 | +4.94% | |
| Global Alpha Capital Management Ltd. | 2.84% | 267,567 | $47,367,386 | $49,705,922 | +$2,338,536 | +4.94% | |
| Geode Capital Management, Llc | 0.00% | 205,368 | $36,363,322 | $38,151,213 | +$1,787,891 | +4.92% | |
| Longleaf Partners | Mason Hawkins | 1.35% | 146,043 | $25,853,992 | $27,130,408 | +$1,276,416 | +4.94% |
| Southernsun Asset Management, Llc | 3.14% | 131,877 | $23,346,185 | $24,498,790 | +$1,152,605 | +4.94% | |
| Goldman Sachs Group Inc | 0.00% | 130,819 | $23,158,928 | $24,302,246 | +$1,143,318 | +4.94% | |
| Charles Schwab Investment Management Inc | 0.00% | 126,182 | $22,337,999 | $23,440,830 | +$1,102,831 | +4.94% | |
| Sixth Street Partners Management Company, L.P. | 0.00% | 126,182 | $22,337,999 | $23,440,830 | +$1,102,831 | +4.94% | |
| Neuberger Berman Group Llc | 0.01% | 117,548 | $20,862,838 | $21,836,892 | +$974,054 | +4.67% | |
| Morgan Stanley | 0.00% | 104,302 | $18,464,638 | $19,376,183 | +$911,545 | +4.94% | |
| Ameriprise Financial Inc | 0.00% | 103,039 | $18,240,995 | $19,141,555 | +$900,560 | +4.94% | |
| Quantinno Capital Management Lp | 0.02% | 102,562 | $18,156,551 | $19,052,943 | +$896,392 | +4.94% | |
| Renaissance Technologies LLC | Jim Simons | 0.02% | 102,179 | $18,088,748 | $18,981,793 | +$893,045 | +4.94% |
| D. E. Shaw & Co., Inc. | 0.01% | 99,454 | $17,606,342 | $18,475,570 | +$869,228 | +4.94% | |
| Northern Trust Corp | 0.00% | 98,799 | $17,490,388 | $18,353,890 | +$863,502 | +4.94% | |
| Trexquant Investment Lp | 0.08% | 73,254 | $12,968,156 | $13,608,396 | +$640,240 | +4.94% | |
| Calamos Advisors Llc | 0.04% | 65,364 | $11,571,389 | $12,142,670 | +$571,281 | +4.94% | |
| Bank Of New York Mellon Corp | 0.00% | 63,464 | $11,235,107 | $11,789,707 | +$554,600 | +4.94% | |
| Bank Of America Corp | 0.00% | 63,070 | $11,165,281 | $11,716,514 | +$551,233 | +4.94% | |
| Worldquant Millennium Advisors Llc | 0.04% | 62,666 | $11,093,762 | $11,641,463 | +$547,701 | +4.94% | |
| Qube Research & Technologies Ltd | 0.01% | 62,634 | $11,088,097 | $11,635,518 | +$547,421 | +4.94% | |
| Fmr Llc | 0.00% | 60,625 | $10,732,453 | $11,262,306 | +$529,853 | +4.94% | |
| Invesco Ltd. | 0.00% | 58,648 | $10,382,455 | $10,895,039 | +$512,584 | +4.94% | |
| Loomis Sayles & Co L P | 0.01% | 58,288 | $10,318,724 | $10,828,162 | +$509,438 | +4.94% | |
| Vanguard Fiduciary Trust Co | 0.00% | 52,748 | $9,337,978 | $9,798,996 | +$461,018 | +4.94% | |
| Citadel Advisors Llc | 0.00% | 48,829 | $8,644,198 | $9,070,963 | +$426,765 | +4.94% | |
| First Trust Advisors Lp | 0.00% | 45,318 | $8,022,645 | $8,418,725 | +$396,080 | +4.94% | |
| Prescott General Partners Llc | 0.41% | 45,000 | $7,966,350 | $8,359,650 | +$393,300 | +4.94% | |
| Marshall Wace, Llp | 0.01% | 42,474 | $7,519,172 | $7,890,395 | +$371,223 | +4.94% | |
| Gabelli Funds Llc | 0.05% | 42,400 | $7,506,072 | $7,876,648 | +$370,576 | +4.94% | |
| Jpmorgan Chase & Co | 0.00% | 35,905 | $6,610,359 | $6,670,072 | +$59,713 | +0.90% | |
| Capital Fund Management S.A. | 0.04% | 33,447 | $5,921,122 | $6,213,449 | +$292,327 | +4.94% | |
| Winton Group Ltd | 0.19% | 33,018 | $5,845,177 | $6,133,754 | +$288,577 | +4.94% | |
| Edgestream Partners, L.P. | 0.17% | 32,914 | $5,826,765 | $6,114,434 | +$287,669 | +4.94% | |
| Darwins River Capital, Lp | 2.99% | 30,820 | $5,456,065 | $5,725,431 | +$269,366 | +4.94% | |
| Tudor Investment Corp Et Al | 0.02% | 30,517 | $5,402,425 | $5,669,143 | +$266,718 | +4.94% | |
| Ing Groep Nv | 0.03% | 29,300 | $5,186,979 | $5,443,061 | +$256,082 | +4.94% | |
| Gamco Investors, Inc. Et Al | 0.05% | 28,352 | $5,019,155 | $5,266,951 | +$247,796 | +4.94% | |
| Rhumbline Advisers | 0.00% | 27,251 | $4,824,224 | $5,062,418 | +$238,194 | +4.94% | |
| Dark Forest Capital Management Lp | 0.30% | 26,691 | $4,725,108 | $4,958,387 | +$233,279 | +4.94% | |
| Nuveen, Llc | 0.00% | 23,416 | $4,145,335 | $4,349,990 | +$204,655 | +4.94% |
Frequently asked questions about SAM
Who owns the most SAM stock?
The largest holders of SAM are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for BOSTON BEER COMPANY INC-A (SAM).
Is SAM widely held by superinvestors?
Many widely followed stocks like SAM appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SAM is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.