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Disclosery

SAM BOSTON BEER INC

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Stock (common), issuer CIK 949870

341 managers (348 13F filers) reported a position in SAM shares at 2025-12-31, 7,555,541 shares in all. 46 filers opened a position and 66 filers sold out during the quarter.

Managers
341
13F filers
348
New
46
Added
74
Reduced
153
Sold out
66
Shares held by filers
7,555,541

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 2 filers holding1,040,624$203M+88,221Timeline
BlackRock, Inc.in group BlackRock, Inc.725,529$142M<0.01%-56,81513F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC440,224$85.9M0.05%-206,83613F-HRTimelineGroup
FMR LLCin group FMR LLC360,875$70.4M<0.01%-28,94513F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …271,516$53M0.03%+13,11313F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP258,001$50.3M0.01%-7,77813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP254,297$49.6M<0.01%-8,96613F-HRTimelineGroup
Gotham Asset Management, LLC248,910$48.6M0.18%+35,64413F-HRTimeline
UBS Group AGgroup of 2 filers holding232,338$45.3M-9,290Timeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC191,605$37.4M0.02%+68,57113F-HRTimelineGroup
SOUTHEASTERN ASSET MANAGEMENT INC/TN/147,997$28.9M1.29%+38,75913F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC139,198$27.2M<0.01%-4,17413F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC132,943$25.9M0.02%+131,85313F-HRTimelineGroup
Qube Research & Technologies Ltd132,862$25.9M0.04%+77,15913F-HRTimeline
Global Alpha Capital Management Ltd.123,028$24M1.46%-8,17613F-HRTimeline
Invesco Ltd.in group Invesco Ltd.117,112$22.9M<0.01%+2,22313F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY114,300$22.3M<0.01%-119,46713F-HR/ATimelineGroup
Woodson Capital Management, LP100,000$19.5M3.01%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co98,826$19.3M<0.01%+2,92013F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC90,903$17.7M<0.01%-1,00613F-HRTimelineGroup
Quantinno Capital Management LP90,340$17.6M0.04%-45,77413F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC82,679$16.1M0.03%-4,40013F-HRTimeline
SOUTHERNSUN ASSET MANAGEMENT, LLC75,524$14.7M2.06%-14,64413F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP74,891$14.6M<0.01%-28013F-HRTimelineGroup
Man Group plcin group Man Group plc71,345$13.9M0.03%+41,05513F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources65,573$12.8M<0.01%+28,25113F-HRTimelineGroup
Calamos Advisors LLCin group Calamos Advisors LLC65,364$12.8M0.05%013F-HRTimelineGroup
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P65,049$12.7M0.02%-2,14013F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC63,123$12.3M0.04%+11,99213F-HRTimeline
Crawford Fund Management, LLC61,481$12M3.85%+18,79513F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp60,283$11.8M<0.01%+5,32913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC56,882$11.1M0.01%-15,06113F-HRTimelineGroup
Trexquant Investment LP56,119$11M0.1%+15,95213F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC55,715$10.9M<0.01%+5,38813F-HR/ATimelineGroup
GAMCO Investors (Gabelli)group of 2 filers holding55,070$10.7M+2,076Timeline
Monaco Asset Management SAM53,927$10.5M3.12%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.53,785$10.5M0.01%-18,57013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/46,718$9.12M<0.01%+5,87913F-HRTimelineGroup
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD46,592$9.09M0.03%new13F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC44,752$8.73M0.01%new13F-HRTimelineGroup
Pacer Advisors, Inc.41,836$8.16M0.02%-5,00313F-HR/ATimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP38,327$7.48M0.01%-7,95613F-HRTimelineGroup
ONTARIO TEACHERS PENSION PLAN BOARDin group ONTARIO TEACHERS PENSION PLAN…30,673$5.99M0.13%+4,53213F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd29,431$5.74M0.2%+1,34613F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding29,069$5.67M+10,975Timeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC29,021$5.66M0.01%-77,65313F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP26,919$5.25M0.01%+9,28413F-HRTimelineGroup
ALGERT GLOBAL LLC24,706$4.82M0.08%-3,49913F-HR/ATimeline
DARK FOREST CAPITAL MANAGEMENT LP24,632$4.81M0.22%+9,13913F-HRTimeline
IEQ CAPITAL, LLC24,236$4.73M0.01%-15,11813F-HRTimeline
RHUMBLINE ADVISERS23,084$4.5M<0.01%-97513F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO23,009$4.49M<0.01%+61113F-HRTimelineGroup
Savoir Faire Capital Management, L.P.21,763$4.25M2.01%-17,06213F-HRTimeline
ALLIANCEBERNSTEIN L.P.20,020$3.91M<0.01%+1,86313F-HRTimeline
RK Asset Management, LLC19,994$3.9M3.68%+97913F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…18,530$3.62M<0.01%+15,28613F-HRTimelineGroup
Nuveen, LLCin group TIAA17,440$3.4M<0.01%013F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding16,551$3.23M-1,399Timeline
Swiss National Bank16,500$3.22M<0.01%-20013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC15,398$3M<0.01%-1,69913F-HRTimelineGroup
Engineers Gate Manager LP13,646$2.66M0.03%-23,21813F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc13,278$2.59M<0.01%-22813F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…12,130$2.37M0.01%-3,88113F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…11,987$2.34M<0.01%-32913F-HRTimeline
Creative Planningin group Creative Planning11,897$2.32M<0.01%-2,93713F-HRTimelineGroup
Campbell & CO Investment Adviser LLC11,315$2.21M0.11%new13F-HRTimeline
Quinn Opportunity Partners LLC10,000$1.95M0.08%new13F-HRTimeline
WEDGE CAPITAL MANAGEMENT L L P/NC9,625$1.88M0.03%-313F-HRTimeline
BCGM Wealth Management, LLC9,605$1.87M0.48%+11413F-HRTimeline
Cardinal Capital Management9,551$1.86M0.25%-1,19513F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd9,245$1.8M0.05%+8,26813F-HRTimelineGroup
Retirement Systems of Alabama9,232$1.8M0.01%-32913F-HRTimeline
CWM, LLCin group CWM, LLC9,129$1.78M<0.01%-9,08813F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd9,074$1.77M0.04%new13F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC8,426$1.64M<0.01%-8,20413F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA8,069$1.57M<0.01%-1,47613F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…7,990$1.56M<0.01%+1,23013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…7,876$1.54M<0.01%-3513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/7,515$1.47M<0.01%+48013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…7,190$1.46M<0.01%-3,84613F-HRTimeline
Atom Investors LP7,243$1.41M0.11%-6,94513F-HRTimeline
LPL Financial LLC7,168$1.4M<0.01%+72813F-HRTimeline
Tejara Capital Ltd6,900$1.35M0.56%new13F-HRTimeline
HRT FINANCIAL LP6,775$1.32M<0.01%new13F-HRTimeline
CastleKnight Management LP6,600$1.29M0.07%new13F-HRTimeline
GAGNON SECURITIES LLCin group GAGNON SECURITIES LLC6,355$1.24M0.25%-15,15313F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC5,936$1.22M<0.01%-9213F-HRTimeline
Exit Wealth Advisors, LLC.6,243$1.22M0.72%+4,57113F-HRTimeline
Skylands Capital, LLC6,050$1.18M0.16%new13F-HRTimeline
CenterBook Partners LP5,749$1.12M0.05%-1,30113F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS5,640$1.1M<0.01%-99413F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …5,546$1.08M<0.01%-32013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN5,484$1.07M<0.01%-63813F-HRTimelineGroup
Federation des caisses Desjardins du Qu…5,459$1.07M<0.01%+54813F-HRTimeline
Oak Thistle LLC5,327$1.04M0.14%-1,46613F-HRTimeline
MAVERICK CAPITAL LTD5,234$1.02M0.01%-8,80513F-HRTimeline
Cambridge Investment Research Advisors,…5,223$1.02M<0.01%+2,03813F-HRTimeline
Bridgewater Associates, LP5,163$1.01M<0.01%-5,66213F-HRTimeline
CIBC Bancorp USA Inc.group of 2 filers holding5,033$982K+4,789Timeline
denkapparat Operations GmbH4,810$939K0.51%+1,61013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC4,701$917K<0.01%-32513F-HRTimelineGroup
Eschler Asset Management LLPin group Eschler Asset Management LLP4,600$898K0.61%+2,10013F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co4,583$893K<0.01%-2,45013F-HRTimelineGroup
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…4,576$893K<0.01%new13F-HRTimelineGroup
Lotus Technology Management, LP4,440$866K0.48%13F-HRTimeline
SG Americas Securities, LLC4,218$823K<0.01%-1,44913F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND4,190$818K<0.01%-1,00013F-HRTimeline
Summit Trail Advisors, LLC4,052$791K0.01%-2,98013F-HRTimeline
COMERICA BANK4,030$786K<0.01%-10213F-HRTimeline
HighTower Advisors, LLC3,995$780K<0.01%+12813F-HRTimeline
Focus Partners Wealthgroup of 2 filers holding3,971$775K-2,945Timeline
JANUS HENDERSON GROUP PLCin group Janus Henderson3,826$747K<0.01%013F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…3,759$733K<0.01%-30613F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC3,744$731K<0.01%+1,80013F-HRTimelineGroup
Jain Global LLC3,672$717K0.01%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC3,561$695K<0.01%-2,52713F-HRTimelineGroup
AMALGAMATED BANK3,515$686K<0.01%-9713F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC3,455$674K0.01%-10213F-HRTimeline
Police & Firemen's Retirement System of…3,438$671K0.01%013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD3,400$663K<0.01%+3,00013F-HRTimeline
State of Tennessee, Department of Treas…3,094$661K<0.01%+2,47513F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,305$645K0.02%-22813F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…3,285$641K<0.01%013F-HRTimeline
Treasurer of the State of North Carolina3,237$632K<0.01%-32713F-HRTimeline
AMICA MUTUAL INSURANCE CO3,208$626K0.05%013F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…3,201$625K0.01%-45213F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC3,186$623K<0.01%-2,64213F-HRTimelineGroup
Caprock Group, LLC3,190$622K0.01%-2,57913F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV3,092$603K<0.01%-3,29213F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC3,076$600K0.01%+15313F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC3,061$597K<0.01%-1,28913F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC3,036$593K<0.01%new13F-HR/ATimelineGroup
Inscription Capital, LLC3,022$590K0.06%-93213F-HRTimeline
FOUNDERS CAPITAL MANAGEMENT, LLC2,995$584K0.09%013F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al2,988$583K<0.01%-40013F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP2,936$573K<0.01%+84713F-HR/ATimelineGroup
Jump Financial, LLCin group Jump Financial, LLC2,915$569K0.01%-61313F-HRTimelineGroup
AlphaQuest LLC2,803$547K0.03%+69013F-HRTimeline
Cambria Investment Management, L.P.2,754$537K0.03%+1,32913F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA2,744$535K<0.01%13F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD2,619$511K<0.01%-3,20013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…2,538$495K<0.01%-13413F-HRTimeline
Sequoia Financial Advisors, LLC2,521$492K<0.01%+20813F-HRTimeline
ICON ADVISERS INC/CO2,520$492K0.11%013F-HRTimeline
Wernau Asset Management Inc.2,500$488K0.48%013F-HRTimeline
Cetera Investment Advisers2,364$461K<0.01%+67013F-HRTimeline
MANGROVE PARTNERS IM, LLC2,355$460K0.04%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM2,337$456K<0.01%-21413F-HRTimeline
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding2,149$419K-13Timeline
Balyasny Asset Management L.P.in group Balyasny Asset Management2,105$411K<0.01%+80013F-HRTimelineGroup
Louisiana State Employees Retirement Sy…2,100$410K0.01%-10013F-HRTimeline
Diversified Investment Strategies, LLC2,085$407K0.27%-15013F-HRTimeline
Sanctuary Advisors, LLC2,049$400K<0.01%new13F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …2,046$399K<0.01%-1,65013F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC1,999$390K0.02%new13F-HRTimelineGroup
RHS Financial, LLC1,961$383K0.19%+30513F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…1,925$376K<0.01%-10513F-HRTimeline
Schonfeld Strategic Advisors LLC1,915$374K<0.01%-1,79313F-HRTimeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD1,900$371K0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS1,901$371K<0.01%-57613F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC1,846$360K<0.01%-1,51313F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC1,653$360K<0.01%-1713F-HRTimeline
Callan Family Office, LLCin group Callan Family Office, LLC1,828$357K0.01%new13F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding1,807$353K+1,247Timeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO1,788$350K<0.01%-2413F-HRTimelineGroup
STATE OF MICHIGAN RETIREMENT SYSTEM1,783$348K<0.01%-10013F-HRTimeline
Asset Management Group, Inc.1,775$346K0.06%-4,55613F-HRTimeline
MQS Management LLC1,766$345K0.2%new13F-HRTimeline
CAPTRUST FINANCIAL ADVISORS1,733$338K<0.01%-2,13813F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…1,732$338K<0.01%-8513F-HRTimelineGroup
OP Asset Management Ltd1,665$325K<0.01%013F-HR/ATimeline
Zurcher Kantonalbank (Zurich Cantonalba…1,635$319K<0.01%013F-HRTimeline
LECAP ASSET MANAGEMENT LTD1,604$313K0.12%new13F-HRTimeline
Merit Financial Group, LLC1,603$313K<0.01%-1,15413F-HRTimeline
TRUST CO OF VERMONT1,580$308K0.01%013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND1,579$308K<0.01%013F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC1,539$300K<0.01%+40613F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,520$297K<0.01%+4213F-HRTimelineGroup
ROBERTS GLORE & CO INC /IL/1,511$295K0.08%-36913F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…1,497$292K<0.01%-10,64213F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC1,444$282K0.02%+20613F-HRTimeline
Dynamic Technology Lab Private Ltd1,422$277K0.06%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,410$275K0.01%-7213F-HRTimelineGroup
HUB Investment Partners, LLC1,390$271K0.01%new13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC1,368$267K<0.01%-1,78813F-HRTimeline
SYON CAPITAL LLC1,333$260K0.01%-73013F-HRTimeline
ExodusPoint Capital Management, LP1,322$258K<0.01%new13F-HRTimeline
GREAT VALLEY ADVISOR GROUP, INC.in group GREAT VALLEY ADVISOR GROUP, I…1,317$257K<0.01%+10013F-HRTimelineGroup
Pallas Capital Advisors LLC1,307$255K0.01%-1,63913F-HRTimeline
SAGE PRIVATE WEALTH GROUP, LLC1,300$254K0.14%-26313F-HRTimeline
AlphaGrep UK Ltd1,293$252K0.08%13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…1,260$246K<0.01%new13F-HRTimelineGroup
Verition Fund Management LLC1,255$245K<0.01%+20313F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd1,251$244K<0.01%new13F-HRTimelineGroup
Claret Asset Management Corp1,241$242K0.03%-313F-HRTimeline
Cresset Asset Management, LLC1,225$239K<0.01%-15313F-HRTimeline
Farther Finance Advisors, LLC1,222$238K<0.01%-4413F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\1,210$236K<0.01%+913F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…1,200$234K<0.01%013F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC1,174$229K0.01%-11113F-HRTimeline