BOSTON BEER COMPANY INC-A (SAM) Institutional Ownership and Insiders Activity

BOSTON BEER COMPANY INC-A (SAM) is widely held by institutional investors, with 2 tracked firms reporting positions valued at approximately $48.89M based on SEC Form 13F filings for the quarter ended March 31, 2026.

Longleaf Partners is the largest disclosed holder, reporting approximately $27.28M in SAM holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Longleaf Partners representing the majority of disclosed value.

Recent insider activity includes 6 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.