BOSTON BEER INC SAM
CL A · Common Stock · CUSIP 100557107 · ISIN US1005571070
- SectorConsumer staples
- IndustryMalt Beverages
- HeadquartersBoston, MA
- Founded1985
- Websitebostonbeer.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($15.0m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $191.81. Options: 11 managers hold calls ($59.5m notional), 13 hold puts ($35.1m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 301 |
| Q4 2022 | 320 |
| Q1 2023 | 304 |
| Q2 2023 | 298 |
| Q3 2023 | 325 |
| Q4 2023 | 343 |
| Q1 2024 | 327 |
| Q2 2024 | 326 |
| Q3 2024 | 333 |
| Q4 2024 | 347 |
| Q1 2025 | 329 |
| Q2 2025 | 348 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 143 | 138 |
| Q4 2023 | 135 | 146 |
| Q1 2024 | 158 | 153 |
| Q2 2024 | 140 | 175 |
| Q3 2024 | 133 | 164 |
| Q4 2024 | 147 | 148 |
| Q1 2025 | 164 | 153 |
| Q2 2025 | 182 | 144 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $43.2m | $45.8m | 1.06 |
| Q4 2024 | $20.8m | $34.7m | 1.67 |
| Q1 2025 | $56.6m | $41.1m | 0.73 |
| Q2 2025 | $59.5m | $35.1m | 0.59 |
Biggest buyers
| TORONTO DOMINION BANK | New | +154.0k |
| Qube Research & Technologies Ltd | Added | +82.7k |
| ACADIAN ASSET MANAGEMENT LLC | New | +67.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Added | +60.9k |
| Quantinno Capital Management LP | Added | +56.2k |
| AMERICAN CENTURY COMPANIES INC | Added | +55.6k |
| Pacer Advisors, Inc. | New | +49.9k |
| VANGUARD GROUP INC | Added | +41.8k |
| AMERIPRISE FINANCIAL INC | Added | +39.8k |
| MILLENNIUM MANAGEMENT LLC | Added | +39.2k |
Biggest sellers
| Nuveen, LLC | Reduced | -293.9k |
| ARMISTICE CAPITAL, LLC | Reduced | -182.6k |
| Point72 Asset Management, L.P. | Reduced | -154.0k |
| J. Goldman & Co LP | Sold out | -68.7k |
| COOPER CREEK PARTNERS MANAGEMENT LLC | Reduced | -64.3k |
| T. Rowe Price Investment Management, Inc. | Reduced | -47.8k |
| CITADEL ADVISORS LLC | Reduced | -46.3k |
| DEUTSCHE BANK AG\ | Reduced | -39.8k |
| BlackRock, Inc. | Reduced | -36.1k |
| D. E. Shaw & Co., Inc. | Reduced | -29.8k |
Biggest calls
| COOPER CREEK PARTNERS MANAGEMENT LLC | New | $29.4m154.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $10.8m56.6k shares |
| JANE STREET GROUP, LLC | Reduced | $7.7m40.6k shares |
| CITADEL ADVISORS LLC | Reduced | $4.4m23.3k shares |
| IMC-Chicago, LLC | Added | $2.3m11.9k shares |
| Squarepoint Ops LLC | Added | $1.7m9.1k shares |
| TUDOR INVESTMENT CORP ET AL | Added | $1.6m8.3k shares |
| WOLVERINE TRADING, LLC | Added | $1.0m5.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $400.0k2.1k shares |
| Walleye Trading LLC | Reduced | $76.3k400 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $12.1m63.3k shares |
| Two Creeks Capital Management, LP | New | $5.7m30.0k shares |
| CITADEL ADVISORS LLC | Reduced | $5.6m29.6k shares |
| WOLVERINE TRADING, LLC | Reduced | $3.6m18.8k shares |
| IMC-Chicago, LLC | Added | $2.7m13.9k shares |
| TUDOR INVESTMENT CORP ET AL | Added | $2.1m10.9k shares |
| Squarepoint Ops LLC | New | $782.3k4.1k shares |
| JANE STREET GROUP, LLC | Reduced | $763.2k4.0k shares |
| Volterra Technologies LP | First filing | $591.5k3.1k shares |
| SIMPLEX TRADING, LLC | Added | $515.0k2.7k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| KOCH C JAMES 13G · exempt (held before listing) +1.6 pts · filed 2026-02-11 | 21.6% |
| BlackRock, Inc. 13G · institution +2.1 pts · filed 2026-10-27 | 13.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.6% |
| AQR CAPITAL MANAGEMENT LLC 13G · institution -1.3 pts · filed 2026-08-13 | 6.5% |
Fell to 5% or below in the last year: MILLENNIUM MANAGEMENT LLC (4.9%, 2026-07-22), FMR LLC (2.3%, 2026-05-06), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 2 | $10.9m | — |
| Q4 2023 | 0 | — | 1 | $70.3k | — |
| Q1 2024 | 0 | — | 1 | $102.4k | — |
| Q2 2024 | 0 | — | 1 | $30.7k | — |
| Q3 2024 | 0 | — | 1 | $34.6k | — |
| Q4 2024 | 0 | — | 1 | $55.7k | — |
| Q1 2025 | 0 | — | 2 | $818.3k | — |
| Q2 2025 | 0 | — | 0 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 913.5k $174.3m | Reduced -36.1k |
| VANGUARD GROUP INC 0.00% of their portfolio | 907.1k $173.1m | Added +41.8k |
| FMR LLC 0.00% of their portfolio | 457.6k $87.3m | Reduced -221 |
| STATE STREET CORP 0.00% of their portfolio | 278.7k $53.2m | Reduced -14.6k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 262.4k $50.1m | Added +1.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.03% of their portfolio | 239.1k $45.6m | Added +60.9k |
| Fisher Asset Management, LLC 0.02% of their portfolio | 232.1k $44.3m | Added +3 |
| COOPER CREEK PARTNERS MANAGEMENT LLC 1.44% of their portfolio | 226.5k $43.2m | Reduced -64.3k |
| MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio | 225.1k $43.0m | Added +39.2k |
| UBS Group AG 0.01% of their portfolio | 192.0k $36.6m | Added +21.1k |
| TORONTO DOMINION BANK 0.06% of their portfolio | 154.0k $29.4m | New |
| AQR CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 146.9k $27.7m | Added +29.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 142.8k $27.2m | Reduced -8.3k |
| Global Alpha Capital Management Ltd. 1.35% of their portfolio | 113.8k $21.7m | Added +34.1k |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 112.5k $21.5m | Added +82.7k |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ 1.02% of their portfolio | 106.3k $20.3m | Unchanged |
| Invesco Ltd. 0.00% of their portfolio | 102.1k $19.5m | Reduced -7.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 95.4k $18.2m | Reduced -4.1k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 93.8k $17.9m | Reduced -29.8k |
| MORGAN STANLEY 0.00% of their portfolio | 93.3k $17.8m | Added +33.0k |
| SOUTHERNSUN ASSET MANAGEMENT, LLC 2.46% of their portfolio | 91.6k $17.5m | Reduced -18.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 91.4k $17.4m | Added +13.1k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 90.7k $17.3m | Added +55.6k |
| Quantinno Capital Management LP 0.06% of their portfolio | 77.3k $14.8m | Added +56.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 75.4k $14.4m | Reduced -11.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 70.5k $13.4m | Reduced -1.3k |
| Trexquant Investment LP 0.15% of their portfolio | 69.1k $13.2m | Added +22.6k |
| ACADIAN ASSET MANAGEMENT LLC 0.03% of their portfolio | 67.1k $12.8m | New |
| LOOMIS SAYLES & CO L P 0.02% of their portfolio | 65.6k $12.5m | Reduced -1.2k |
| Point72 Asset Management, L.P. 0.03% of their portfolio | 63.7k $12.1m | Reduced -154.0k |
| PRUDENTIAL FINANCIAL INC 0.03% of their portfolio | 62.8k $19.8m | Added +35.9k |
| Calamos Advisors LLC 0.05% of their portfolio | 58.3k $11.1m | Added +12.3k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 53.6k $10.2m | Added +31.7k |
| BARCLAYS PLC 0.00% of their portfolio | 52.2k $10.0m | Added +15.7k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 51.3k $9.8m | Added +39.8k |
| Crawford Fund Management, LLC 5.67% of their portfolio | 50.5k $9.6m | Added +10.1k |
| Pacer Advisors, Inc. 0.02% of their portfolio | 49.9k $9.5m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 48.7k $9.3m | Reduced -13.4k |
| Jump Financial, LLC 0.10% of their portfolio | 44.7k $8.5m | Added +7.6k |
| Engineers Gate Manager LP 0.10% of their portfolio | 40.0k $7.6m | Added +28.7k |
| Cubist Systematic Strategies, LLC 0.08% of their portfolio | 39.4k $7.5m | Added +19.5k |
| Man Group plc 0.02% of their portfolio | 38.2k $7.3m | Added +3.9k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 34.0k $6.5m | Added +20.7k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 32.8k $6.3m | Added +29.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 30.6k $5.8m | Added +8.7k |
| Savoir Faire Capital Management, L.P. 2.79% of their portfolio | 30.2k $5.8m | Added +9.6k |
| ONTARIO TEACHERS PENSION PLAN BOARD 0.12% of their portfolio | 30.1k $5.7m | Added +19.4k |
| ARMISTICE CAPITAL, LLC 0.20% of their portfolio | 28.0k $5.3m | Reduced -182.6k |
| Y-Intercept (Hong Kong) Ltd 0.13% of their portfolio | 27.9k $5.3m | Added +22.9k |
| Verition Fund Management LLC 0.03% of their portfolio | 27.0k $5.2m | Added +17.3k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.20% of their portfolio | 26.7k $5.1m | Added +8.1k |
| GAGNON SECURITIES LLC 0.97% of their portfolio | 25.1k $4.8m | Added +535 |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 24.1k $4.6m | Added +5.9k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 23.4k $4.5m | Reduced -1.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 22.3k $4.2m | Reduced -417 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 21.7k $4.1m | Added +1.0k |
| Holocene Advisors, LP 0.01% of their portfolio | 21.3k $4.1m | Reduced -11.9k |
| Point72 Hong Kong Ltd 0.28% of their portfolio | 21.2k $4.0m | Added +20.5k |
| Assenagon Asset Management S.A. 0.01% of their portfolio | 19.7k $3.8m | Reduced -10.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 19.6k $3.7m | Added +12.7k |
| GABELLI FUNDS LLC 0.03% of their portfolio | 18.9k $3.6m | Added +800 |
| RK Asset Management, LLC 3.44% of their portfolio | 18.7k $3.6m | Added +22 |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 18.7k $3.6m | Reduced -1.2k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio | 18.1k $3.5m | Added +2.4k |
| Magnetar Financial LLC 0.02% of their portfolio | 18.0k $3.4m | Added +17.0k |
| Nuveen, LLC 0.00% of their portfolio | 17.7k $3.4m | Reduced -293.9k |
| Redwood Investment Management, LLC 0.35% of their portfolio | 17.4k $3.3m | Added +2.0k |
| GAMCO INVESTORS, INC. ET AL 0.03% of their portfolio | 17.2k $3.3m | Added +886 |
| Swiss National Bank 0.00% of their portfolio | 16.6k $3.2m | Reduced -700 |
| CITIGROUP INC 0.00% of their portfolio | 16.5k $3.2m | Added +1.3k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 15.7k $3.0m | Added +4.6k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 15.1k $2.9m | Added +11.8k |
| Legal & General Group Plc 0.00% of their portfolio | 14.6k $2.8m | Added +281 |
| ALGERT GLOBAL LLC 0.06% of their portfolio | 14.3k $2.7m | Added +1.1k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 13.4k $2.6m | Added +1.6k |
| Schonfeld Strategic Advisors LLC 0.02% of their portfolio | 13.4k $2.6m | New |
| Brevan Howard Capital Management LP 0.03% of their portfolio | 13.2k $2.5m | Added +9.3k |
| ExodusPoint Capital Management, LP 0.03% of their portfolio | 12.3k $2.4m | New |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 11.7k $2.2m | Reduced -133 |
| Gotham Asset Management, LLC 0.01% of their portfolio | 11.5k $2.2m | Reduced -15.7k |
| Atom Investors LP 0.17% of their portfolio | 10.1k $1.9m | New |
| Retirement Systems of Alabama 0.01% of their portfolio | 10.1k $1.9m | Reduced -410 |
| CenterBook Partners LP 0.10% of their portfolio | 9.8k $1.9m | Added +4.7k |
| Cardinal Capital Management 0.27% of their portfolio | 9.5k $1.8m | Added +1.7k |
| TWINBEECH CAPITAL LP 0.04% of their portfolio | 9.4k $1.8m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 9.4k $1.8m | Reduced -5.0k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 9.4k $1.8m | Added +1.2k |
| Campbell & CO Investment Adviser LLC 0.11% of their portfolio | 9.1k $1.7m | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 8.8k $1.7m | Added +8.6k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.03% of their portfolio | 8.6k $1.6m | Added +45 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 8.4k $1.6m | Added +57 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 7.8k $1.5m | Added +3.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 7.3k $1.4m | Reduced -665 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 7.2k $1.4m | Reduced -200 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 7.0k $1.3m | Reduced -350 |
| WOLVERINE TRADING, LLC 0.03% of their portfolio | 7.0k $1.3m | Reduced -970 |
| Alberta Investment Management Corp 0.01% of their portfolio | 6.9k $1.3m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 6.8k $1.3m | Reduced -176 |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.01% of their portfolio | 6.7k $1.3m | Added +225 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 6.7k $1.3m | Reduced -97 |