BOSTON BEER CO INC - Class A Common Stock. $0.01 par value (SAM)

CUSIP: 100557107

Q3 2025 13F Holders as of 30 Sep 2025

Security identity
Security type / class
Equity / Class A Common Stock. $0.01 par value
Shares outstanding
8,380,257
Holder snapshot
Total 13F shares
7,883,429
Share change
+206,869
Total reported value
$1,666,863,123
Put/Call ratio
63%
Reported price per share
$211.42
Number of holders
351
Value change
+$54,934,102
Number of buys
175
Number of sells
170

Security key

100557107

Report period

Q3 2025

Institutions

351

Top holders

10

SAM full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2025 Previous quarter: Q2 2025 BOSTON BEER CO INC SEC filings BOSTON BEER CO INC company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top shareholders of SAM - BOSTON BEER CO INC - Class A Common Stock. $0.01 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder
T. Rowe Price Investment ...
13D/G signal
T. Rowe Price Investment ...
Evidence rows
50
Latest as of
30 Jun 2025
13D/G 13F Lead comparable stake: 0.6% 13D/G row: T. Rowe Price Investment Management, Inc. Showing 1-8 of 50 holder rows.
Holder Evidence Ownership % Position 12M Net Δ As of
T. Rowe Price Investment Management, Inc.
13D/G 13F
Company
13D/G 13F
0.6%
$12,546,221
52,713 shares
 $0 31 Mar 2025
BlackRock, Inc.
13F
Company
13F
11%
$174,305,126
913,501 shares
 — 30 Jun 2025
VANGUARD GROUP INC
13F
Company
13F
11%
$173,081,079
907,086 shares
 — 30 Jun 2025
FMR LLC
13F
Company
13F
5.5%
$87,307,517
457,563 shares
 — 30 Jun 2025
STATE STREET CORP
13F
Company
13F
3.3%
$53,173,595
278,673 shares
 — 30 Jun 2025
DIMENSIONAL FUND ADVISORS LP
13F
Company
13F
3.1%
$50,076,749
262,443 shares
 — 30 Jun 2025
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F
Company
13F
2.9%
$45,624,388
239,109 shares
 — 30 Jun 2025
Fisher Asset Management, LLC
13F
Company
13F
2.8%
$44,283,651
232,082 shares
 — 30 Jun 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
351
Shares
7,883,429
Rows loaded
354
Investor Option Weight % Change % Reported value * Price Shares Share Change Activity Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.

Compare Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders
341
Q3 2025 holders
351
Holder diff
10
Investor Q2 2025 Shares Q3 2025 Shares Share Diff Share Chg % Q2 2025 value Q3 2025 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .