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 2024?

323 institutional investors reported SAM - BOSTON BEER CO INC - Class A Common Stock, $0.01 par value for Q2 2024. 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 2024 13F Holders as of 30 Jun 2024

Security type / class: Equity / Class A Common Stock, $0.01 par value
Total 13F shares: 7,108,479
Total 13F value: $2,168,100,423
Share change: -175,356
Put/Call ratio: 78%
SEC-reported price per share: $305.05
Number of holders: 323
Value change: -$53,273,624
Number of buys: 141
Number of sells: 171
Shares outstanding: 8,346,028

Security key

100557107

Report period

Q2 2024

Institutions

323

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

C. James Koch

Disclosed value leader

T. Rowe Price Investment ...

Comparable rows

0/15

Latest evidence

31 Mar 2024

3/4/5 13F Highest disclosed value: $271,153,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

T. Rowe Price Investment Management, Inc. has the largest disclosed position value at $271.15M.

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 T. Rowe Price Investment Management, Inc.'s linked filing trail.

Disclosed position value Top 5

C. James Koch $70.03M

T. Rowe Price Investment Manageme... $271.15M

BlackRock Finance, Inc. $255.52M

VANGUARD GROUP INC $238.8M

FMR LLC $180.03M

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
C. James Koch	3/4/5 Chairman, Director, 10%+ Owner 3/4/5	— denominator unverified	$70,025,317 203,072 shares	—	31 Oct 2023
T. Rowe Price Investment Management, Inc.	13F Company 13F	— denominator unverified	$271,153,000 890,717 shares	—	31 Mar 2024
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$255,520,406 839,368 shares	—	31 Mar 2024
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$238,795,875 784,429 shares	—	31 Mar 2024
FMR LLC	13F Company 13F	— denominator unverified	$180,032,364 591,395 shares	—	31 Mar 2024
Samuel A. Calagione III	3/4/5 Founder & Brewer, Dogfish Head 3/4/5	— denominator unverified	$116,564,609 338,035 shares	—	10 Aug 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 2024

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

Institutions

323

7,108,479

Rows available

323

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 2024 vs Q1 2024 Across Filers

Q1 2024 holders

323

Q2 2024 holders

323

Holder diff

Investor	Q1 2024 Shares	Q2 2024 Shares	Share Diff	Share Chg %	Q1 2024 value	Q2 2024 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend