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 Q4 2018?

249 institutional investors reported SAM - BOSTON BEER CO INC - Class A Common Stock $0.01 par value for Q4 2018. 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

Q4 2018 13F Holders as of 31 Dec 2018

Type / Class: Equity / Class A Common Stock $0.01 par value
Shares outstanding: 8,598,125
Total 13F shares: 8,603,996
Share change: -33,610
Total reported value: $2,070,733,056
Put/Call ratio: 128%
Price per share: $240.84
Number of holders: 249
Value change: -$10,825,012
Number of buys: 97
Number of sells: 132

Quarterly Holders Quick Answers

What is CUSIP 100557107?
CUSIP 100557107 identifies SAM - BOSTON BEER CO INC - Class A Common Stock $0.01 par value in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2019
Previous quarter: Q3 2018

Recent filing periods for CUSIP 100557107:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

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. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	16%	1,370,182	$393,927,000	—	30 Sep 2018	13F
BlackRock Finance, Inc.	13F	Company	11%	951,038	$273,422,000	—	30 Sep 2018	13F
VANGUARD GROUP INC	13F	Company	11%	905,863	$260,436,000	—	30 Sep 2018	13F
Fisher Asset Management, LLC	13F	Company	3.6%	309,856	$89,084,000	—	30 Sep 2018	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	3.5%	303,881	$87,366,000	—	30 Sep 2018	13F
STATE STREET CORP	13F	Company	3.4%	288,537	$82,965,000	—	30 Sep 2018	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	2.6%	225,846	$64,934,000	—	30 Sep 2018	13F
GOLDMAN SACHS GROUP INC	13F	Company	2.6%	225,107	$64,719,000	—	30 Sep 2018	13F
Bank of New York Mellon Corp	13F	Company	2.3%	201,276	$57,868,000	—	30 Sep 2018	13F
Invesco Ltd.	13F	Company	2.3%	198,717	$57,131,000	—	30 Sep 2018	13F
MACQUARIE GROUP LTD	13F	Company	2.3%	196,486	$56,490,000	—	30 Sep 2018	13F
Jupiter Investment Management Ltd	13F	Company	2.1%	179,484	$51,601,000	—	30 Sep 2018	13F
PANAGORA ASSET MANAGEMENT INC	13F	Company	1.9%	162,504	$46,720,000	—	30 Sep 2018	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	1.9%	162,393	$46,688,000	—	30 Sep 2018	13F
Champlain Investment Partners, LLC	13F	Company	1.6%	141,350	$40,638,000	—	30 Sep 2018	13F
NORTHERN TRUST CORP	13F	Company	1.6%	138,784	$39,901,000	—	30 Sep 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.3%	114,826	$33,012,000	—	30 Sep 2018	13F
TWO SIGMA ADVISERS, LP	13F	Company	1.3%	112,479	$32,338,000	—	30 Sep 2018	13F
AJO, LP	13F	Company	1.3%	110,697	$31,825,000	—	30 Sep 2018	13F
NORGES BANK	13F	Company	1.1%	92,068	$26,469,000	—	30 Sep 2018	13F
DEUTSCHE BANK AG\	13F	Company	1%	86,436	$24,851,000	—	30 Sep 2018	13F
JPMORGAN CHASE & CO	13F	Company	0.98%	84,063	$24,168,000	—	30 Sep 2018	13F
Man Group plc	13F	Company	0.88%	75,969	$21,842,000	—	30 Sep 2018	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.78%	67,462	$19,396,000	—	30 Sep 2018	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.69%	59,659	$17,152,000	—	30 Sep 2018	13F
MORGAN STANLEY	13F	Company	0.69%	59,557	$17,123,000	—	30 Sep 2018	13F
WINTON GROUP Ltd	13F	Company	0.68%	58,259	$16,749,000	—	30 Sep 2018	13F
Boston Trust Walden Corp	13F	Company	0.64%	54,949	$15,798,000	—	30 Sep 2018	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.64%	54,876	$15,776,000	—	30 Sep 2018	13F
O'SHAUGHNESSY ASSET MANAGEMENT, LLC	13F	Company	0.64%	55,108	$15,746,000	—	30 Sep 2018	13F
FEDERATED HERMES, INC.	13F	Company	0.6%	51,774	$14,885,000	—	30 Sep 2018	13F
CANADA PENSION PLAN INVESTMENT BOARD	13F	Company	0.6%	51,400	$14,778,000	—	30 Sep 2018	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.56%	48,100	$13,831,000	—	30 Sep 2018	13F
Neuberger Berman Group LLC	13F	Company	0.55%	47,336	$13,609,000	—	30 Sep 2018	13F
RK Asset Management, LLC	13F	Company	0.54%	46,318	$13,316,000	—	30 Sep 2018	13F
D. E. Shaw & Co., Inc.	13F	Company	0.53%	45,424	$13,060,000	—	30 Sep 2018	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.52%	44,935	$12,918,000	—	30 Sep 2018	13F
Robeco Institutional Asset Management B.V.	13F	Company	0.51%	43,611	$12,540,000	—	30 Sep 2018	13F
BROADVIEW ADVISORS LLC	13F	Company	0.41%	34,825	$10,012,000	—	30 Sep 2018	13F
Aperio Group, LLC	13F	Company	0.39%	33,705	$9,690,000	—	30 Sep 2018	13F
CAPITAL FUND MANAGEMENT S.A.	13F	Company	0.38%	32,303	$9,287,000	—	30 Sep 2018	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.36%	31,239	$8,981,000	—	30 Sep 2018	13F
BNP Paribas Asset Management Holding S.A.	13F	Company	0.34%	28,957	$8,325,000	—	30 Sep 2018	13F
Allianz Asset Management GmbH	13F	Company	0.33%	28,699	$8,251,000	—	30 Sep 2018	13F
APG Asset Management N.V.	13F	Company	0.38%	33,000	$8,168,000	—	30 Sep 2018	13F
Global Alpha Capital Management Ltd.	13F	Company	0.33%	28,145	$8,092,000	—	30 Sep 2018	13F
ACADIAN ASSET MANAGEMENT LLC	13F	Company	0.31%	26,531	$7,629,000	—	30 Sep 2018	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.3%	26,070	$7,495,000	—	30 Sep 2018	13F
ROYAL BANK OF CANADA	13F	Company	0.29%	25,312	$7,278,000	—	30 Sep 2018	13F
GABELLI FUNDS LLC	13F	Company	0.28%	24,500	$7,044,000	—	30 Sep 2018	13F

Institutional Holders of BOSTON BEER CO INC - Class A Common Stock $0.01 par value (SAM) as of Q4 2018

As of 31 Dec 2018, BOSTON BEER CO INC - Class A Common Stock $0.01 par value (SAM) was held by 249 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 8,603,996 shares. The largest 10 holders included PRICE T ROWE ASSOCIATES INC /MD/, BlackRock Inc., Vanguard Group Inc, AQR CAPITAL MANAGEMENT LLC, Fisher Asset Management, LLC, STATE STREET CORP, DIMENSIONAL FUND ADVISORS LP, MERIAN GLOBAL INVESTORS (UK) Ltd, GOLDMAN SACHS GROUP INC, and Invesco Ltd.. This page lists 249 institutional shareholders reporting positions in this security for the Q4 2018 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2018 vs Q3 2018 Across Filers

Q3 2018 holders

245

Q4 2018 holders

249

Holder diff

Investor	Q3 2018 Shares	Q4 2018 Shares	Share Diff	Share Chg %	Q3 2018 Value $	Q4 2018 Value $	Value Diff $	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.