What does CUSIP 100557107 represent in this 13F holders report?

CUSIP 100557107 is the security identifier for SAM - BOSTON BEER CO INC - Class A Common Stock, $0.01 par value used to aggregate holder disclosures.

How many institutions held SAM - BOSTON BEER CO INC - Class A Common Stock, $0.01 par value in Q2 2023?

294 institutional investors reported SAM - BOSTON BEER CO INC - Class A Common Stock, $0.01 par value for Q2 2023. Use the holders table for investor-level position and value details.

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

CUSIP: 100557107

Q2 2023 13F Holders as of 30 Jun 2023

Security type / class: Equity / Class A Common Stock, $0.01 par value
Total 13F shares: 7,878,594
Total 13F value: $2,430,459,743
Share change: -213,271
Put/Call ratio: 150%
SEC-reported price per share: $308.44
Number of holders: 294
Value change: -$72,583,499
Number of buys: 125
Number of sells: 140
Shares outstanding: 8,346,028

Security key

100557107

Report period

Q2 2023

Institutions

294

Top holders

SAM full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 BOSTON BEER CO INC SEC filings BOSTON BEER CO INC company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 100557107

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders 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.

Comparable stake leader

FMR LLC

Disclosed value leader

FMR LLC

Comparable rows

0/15

Latest evidence

31 Mar 2023

13F Highest disclosed value: $494,467,371 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

FMR LLC has the largest disclosed position value at $494.47M.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens FMR LLC's linked filing trail.

Disclosed position value Top 5

FMR LLC $494.47M

T. Rowe Price Investment Manageme... $372.15M

VANGUARD GROUP INC $298.36M

BlackRock Finance, Inc. $272.53M

Champlain Investment Partners, LLC $86.01M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
FMR LLC	13F Company 13F	— denominator unverified	$494,467,371 1,504,312 shares	—	31 Mar 2023
T. Rowe Price Investment Management, Inc.	13F Company 13F	— denominator unverified	$372,146,000 1,132,173 shares	—	31 Mar 2023
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$298,357,375 907,689 shares	—	31 Mar 2023
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$272,526,488 829,104 shares	—	31 Mar 2023
Champlain Investment Partners, LLC	13F Company 13F	— denominator unverified	$86,007,642 261,660 shares	—	31 Mar 2023
STATE STREET CORP	13F Company 13F	— denominator unverified	$85,479,092 260,052 shares	—	31 Mar 2023

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 Q2 2023

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

Institutions

294

7,878,594

Rows available

294

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-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 did not pass the local price check.

Compare Q2 2023 vs Q1 2023 Across Filers

Q1 2023 holders

299

Q2 2023 holders

294

Holder diff

-5

Investor	Q1 2023 Shares	Q2 2023 Shares	Share Diff	Share Chg %	Q1 2023 value	Q2 2023 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend