BOSTON BEER COMPANY INC-A (SAM) Institutional Ownership Changes & 13F Activity

BOSTON BEER COMPANY INC-A (SAM) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Longleaf Partners, Renaissance Technologies LLC, Sequoia Financial Advisors, Durable Capital Partners, and Egerton Capital UK.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Longleaf PartnersSell-29,596118,401$27,279,590
Q1 2026Renaissance Technologies LLCBuy11,10093,779$21,606,682
Q1 2026Sequoia Financial AdvisorsBuy1,5994,120$949,248
Q4 2025Longleaf PartnersBuy38,759147,997$28,878,655
Q4 2025Renaissance Technologies LLCSell-4,40082,679$16,133,153
Q4 2025Sequoia Financial AdvisorsBuy2082,521$491,924
Q3 2025Renaissance Technologies LLCSell-4,30087,079$18,410,242
Q3 2025Longleaf PartnersBuy2,921109,238$23,095,098
Q3 2025Sequoia Financial AdvisorsBuy2,0622,313$489,015
Q2 2025Renaissance Technologies LLCBuy13,10091,379$17,436,027
Q1 2025Renaissance Technologies LLCBuy10,40078,279$18,696,156
Q4 2024Renaissance Technologies LLCSell-4,40067,879$20,362,342
Q3 2024Renaissance Technologies LLCBuy27,07972,279$20,898,750
Q2 2024Renaissance Technologies LLCSell-40,30045,200$13,788,260
Q1 2024Renaissance Technologies LLCBuy40,00085,500$26,028
Q4 2023Renaissance Technologies LLCBuy38,00045,500$15,724
Q3 2023Renaissance Technologies LLCSell-78,4007,500$2,921
Q3 2023Longleaf PartnersSell-20,957106,317$41,413,661
Q2 2023Longleaf PartnersBuy18,724127,274$39,256,392
Q1 2023Longleaf PartnersBuy108,550108,550$35,680,385
Q1 2022Durable Capital PartnersSell-151,986142,550$55,376
Q4 2021Durable Capital PartnersSell-169,363294,536$148,770
Q3 2021Renaissance Technologies LLCSell-148,80085,900$43,788
Q3 2021Durable Capital PartnersSell-107,074463,899$236,473
Q2 2021Renaissance Technologies LLCSell-69,200234,700$239,582
Q2 2021Durable Capital PartnersSell-31,903570,973$582,849
Q2 2021Sequoia Financial AdvisorsSell-19251$256
Q1 2021Renaissance Technologies LLCSell-69,600303,900$366,588
Q1 2021Durable Capital PartnersBuy22,689602,876$727,237
Q1 2021Sequoia Financial AdvisorsBuy20270$326

Frequently asked questions about SAM activity

  • Which institutional owners are buying SAM?

    Institutional owners buying SAM include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in SAM activity?

    "Buy" means an investor increased their reported position in SAM compared to the prior reporting period. This reflects growing exposure to BOSTON BEER COMPANY INC-A (SAM) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in SAM increasing?

    Institutional interest in SAM can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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