13F Insight
DOSSIER · 13F Holders · Q1 2026Consumer Defensive · Malt BeveragesCheap mega-capRe-rated
SAM

BOSTON BEER INC

383 institutions still hold BOSTON BEER INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 100557107·Malt Beverages·383 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 1.7%
vs prior quarter
13F value held
$1.2B
72.0% inst. owned
of float
Holders
383
+21 QoQ
filers reporting
Activity
+88 / −78
+859 added · −742 reduced
this quarter
Concentration
14.43%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

383 institutions reported SAM in Q1 2026. BlackRock, Inc. leads at 14.4% of the visible book. +21 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$177M770K0.00%Q1 202602
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$150M652K0.07%Q1 202603
Vanguard Portfolio Management
CIK 0002100121· Index
$146M634K0.01%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$79M341K0.00%Q1 202605
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$66M288K0.03%Q1 202606
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$63M274K0.01%Q1 202607
STATE STREET CORP
CIK 0000093751
$59M255K0.00%Q1 202608
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$57M245K0.03%Q1 202609
Quantinno Capital Management LP
CIK 0001759654
$53M231K0.09%Q1 202610
UBS Group AG
CIK 0001610520
$50M219K0.01%Q1 202611
FMR LLC
CIK 0000315066
$45M195K0.00%Q1 202612
Gotham Asset Management, LLC
CIK 0001510387
$39M170K0.12%Q1 202613
CITADEL ADVISORS LLC
CIK 0001423053
$34M176K0.01%Q4 202514
Global Alpha Capital Management Ltd.
CIK 0001584691
$34M148K2.04%Q1 202615
GOLDMAN SACHS GROUP INC
CIK 0000886982
$33M145K0.00%Q1 202616
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$33M142K0.00%Q1 202617
MORGAN STANLEY
CIK 0000895421
$31M135K0.00%Q1 202618
SOUTHEASTERN ASSET MANAGEMENT INC/TN/
CIK 0000807985
$27M118K1.34%Q1 202619
Invesco Ltd.
CIK 0000914208
$27M116K0.00%Q1 202620
Qube Research & Technologies Ltd
CIK 0001729829
$26M111K0.03%Q1 2026
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