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Disclosery

AMG AFFILIATED MANAGERS GROUP

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Stock (common), issuer CIK 1004434

501 managers (512 13F filers) reported a position in AMG shares at 2025-12-31, 25,920,302 shares in all. 78 filers opened a position and 30 filers sold out during the quarter.

Managers
501
13F filers
512
New
78
Added
145
Reduced
170
Sold out
30
Shares held by filers
25,920,302

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
BlackRock, Inc.in group BlackRock, Inc.2,799,201$807M0.01%-22,65413F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding2,693,028$776M-89,197Timeline
MORGAN STANLEYin group MORGAN STANLEY1,705,721$492M0.03%-235,79713F-HR/ATimelineGroup
ARIEL INVESTMENTS, LLC1,182,223$341M3.68%-81,60113F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp1,136,710$328M0.34%-20,63413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP929,397$268M0.01%-34,31113F-HRTimelineGroup
Clarkston Capital Partners, LLC904,119$261M6.03%-328,21413F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC796,010$229M0.16%-221,10313F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP699,448$202M0.04%+15,33213F-HRTimelineGroup
FULLER & THALER ASSET MANAGEMENT, INC.685,588$198M0.67%+115,31313F-HR/ATimeline
LYRICAL ASSET MANAGEMENT LP551,587$159M2.08%-28,24813F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC551,153$159M0.01%+41,32213F-HRTimelineGroup
LSV ASSET MANAGEMENT473,021$136M0.3%-6,60313F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE426,649$123M0.14%+33,48813F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding396,012$114M-66,839Timeline
NORGES BANK394,559$114M0.01%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP325,696$93.9M0.01%-8,67213F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC319,437$92.1M0.06%-325,70413F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co305,596$88.1M0.01%-6,97213F-HRTimelineGroup
Channing Capital Management, LLC290,720$83.8M2.16%-134,31713F-HRTimeline
BRUNI J V & CO /CO252,147$72.7M7.14%-2,84213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp247,189$71.3M0.01%+3,04613F-HRTimelineGroup
Fisher Asset Management, LLC243,830$70.3M0.02%+40,10713F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/242,292$69.8M0.01%-1,96113F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC236,897$68.4M0.02%+44,01113F-HRTimelineGroup
Kiltearn Partners LLP236,414$68.2M14.76%-47,40013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/233,332$67.3M<0.01%+48,60613F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management231,675$66.8M0.13%-104,38813F-HRTimelineGroup
Holocene Advisors, LP184,010$53M0.11%-69,92513F-HRTimeline
FMR LLCin group FMR LLC181,842$52.4M<0.01%-1,86313F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC161,651$46.6M0.01%+35,57213F-HR/ATimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.145,483$41.9M0.12%-149,59813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO133,897$38.6M<0.01%+8,25413F-HRTimelineGroup
NOMURA ASSET MANAGEMENT CO LTDgroup of 3 filers holding132,225$38.1M+131,905Timeline
Artisan Partners Limited Partnership130,112$37.5M0.06%new13F-HRTimeline
Franklin Resourcesgroup of 2 filers holding113,988$32.9M-4,639Timeline
Polar Capital Holdings Plcin group Polar Capital Holdings Plc107,245$30.9M0.14%+28,72213F-HRTimelineGroup
Caisse de depot et placement du Quebec106,100$30.6M0.05%+5,15213F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO102,297$29.5M0.03%+4,42313F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP102,034$29.4M0.02%-59,44413F-HRTimelineGroup
Concentric Capital Strategies, LP99,955$28.8M1.49%+39,78313F-HRTimeline
Invesco Ltd.in group Invesco Ltd.96,721$27.9M<0.01%013F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC94,501$27.2M0.02%-39,95513F-HRTimeline
Treasurer of the State of North Carolina94,453$27.2M0.09%-1,00513F-HRTimeline
Engineers Gate Manager LP92,301$26.6M0.32%+89,19713F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND91,538$26.4M0.04%-33,02413F-HRTimeline
ALLIANCEBERNSTEIN L.P.86,642$25M0.01%-28,33713F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN86,038$24.8M<0.01%+22,48413F-HRTimelineGroup
Arbejdsmarkedets Tillaegspension85,807$24.7M0.63%13F-HRTimeline
Retirement Systems of Alabama85,514$24.7M0.08%-11,32313F-HRTimeline
Man Group plcin group Man Group plc84,334$24.3M0.05%+5,35013F-HRTimelineGroup
LORD, ABBETT & CO. LLC77,328$22.3M0.07%new13F-HRTimeline
NORTH STAR ASSET MANAGEMENT INC77,228$22.3M0.9%-8,10613F-HRTimeline
RHUMBLINE ADVISERS76,392$22M0.02%-4,66713F-HRTimeline
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P74,280$21.4M0.03%new13F-HRTimelineGroup
Freestone Grove Partners LP73,413$21.2M0.15%new13F-HRTimeline
Goodman Financial Corp67,474$19.5M3.68%-12,78713F-HRTimeline
California Public Employees Retirement …67,333$19.4M0.01%+94613F-HRTimeline
Quantinno Capital Management LP67,084$19.3M0.04%+5,73513F-HRTimeline
Wallace Capital Management Inc.65,097$18.8M2.26%-1,80313F-HRTimeline
Nuveen, LLCin group TIAA64,377$18.6M<0.01%-8,29813F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC63,194$18.2M0.06%+48,45513F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding60,503$17.4M-2,884Timeline
CITIGROUP INCin group CITIGROUP INC60,416$17.4M0.01%+51,05313F-HRTimelineGroup
Swiss National Bank56,100$16.2M0.01%+1,00013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…52,708$15.2M0.02%-1,59813F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\51,354$14.8M<0.01%+10113F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…46,483$13.4M0.04%-91213F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC46,243$13.3M<0.01%-6,48613F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC55,190$13.1M0.04%-17,77513F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …44,402$12.8M0.02%-2,50313F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc44,165$12.7M<0.01%-2,13313F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC43,114$12.4M<0.01%-19,33513F-HRTimelineGroup
BW Gestao de Investimentos Ltda.42,000$12.1M0.43%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC40,079$11.6M0.01%-29,38713F-HRTimelineGroup
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …39,784$11.5M0.01%-4,79613F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…39,459$11.4M0.02%-17413F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.39,261$11.3M0.01%-5,34913F-HRTimelineGroup
Qube Research & Technologies Ltd39,246$11.3M0.02%new13F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC38,505$11.1M0.04%+15013F-HRTimeline
STOREBRAND ASSET MANAGEMENT AS38,257$11M0.03%-32113F-HRTimeline
ExodusPoint Capital Management, LP37,845$10.9M0.12%+18,62813F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…35,748$10.3M0.02%-81813F-HRTimeline
Calamos Advisors LLCin group Calamos Advisors LLC35,430$10.2M0.04%013F-HRTimelineGroup
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…34,908$10.1M0.01%+15,43213F-HRTimelineGroup
ALGERT GLOBAL LLC33,947$9.79M0.15%-36,94313F-HR/ATimeline
SCHRODER INVESTMENT MANAGEMENT GROUP33,319$9.67M0.01%+8,83813F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding32,529$9.38M+4,527Timeline
Livforsakringsbolaget Skandia, Omsesidi…31,850$9.18M0.36%+2,80013F-HRTimeline
ZACKS INVESTMENT MANAGEMENT31,471$9.07M0.07%+27913F-HRTimeline
Edgestream Partners, L.P.30,459$8.78M0.25%+2,36613F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC29,061$8.38M<0.01%-18,23713F-HRTimelineGroup
NICOLA WEALTH MANAGEMENT LTD.29,000$8.36M0.76%013F-HRTimeline
Schonfeld Strategic Advisors LLC28,720$8.28M0.04%new13F-HRTimeline
REINHART PARTNERS, LLC.28,283$8.15M0.24%-20,28713F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC28,113$8.1M0.02%-15713F-HRTimelineGroup
Genus Capital Management Inc.26,985$7.78M0.91%+4,35013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…26,765$7.72M0.01%-68813F-HRTimeline
Longaeva Partners L.P.26,553$7.65M0.91%new13F-HRTimeline
BRANT POINT INVESTMENT MANAGEMENT LLC25,000$7.21M1.74%new13F-HRTimeline
Mitsubishi UFJ Trust & Banking Corpgroup of 2 filers holding24,906$7.19M+4,258Timeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …24,858$7.17M<0.01%013F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …24,740$7.13M0.01%+24,43213F-HRTimelineGroup
Sterling Capital Management LLC24,484$7.06M0.11%-2,54313F-HRTimeline
Moran Wealth Management, LLC23,814$6.87M0.21%-1,58713F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC23,519$6.78M0.01%+21,33413F-HRTimelineGroup
Kestra Advisory Services, LLCgroup of 2 filers holding20,327$5.86M-498Timeline
STATE BOARD OF ADMINISTRATION OF FLORID…20,108$5.8M0.01%013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …19,851$5.72M<0.01%-67213F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC19,629$5.66M0.02%+11,65613F-HRTimeline
Amplius Wealth Advisors, LLC19,613$5.65M0.47%+1713F-HRTimeline
Informed Momentum Co LLC19,138$5.52M0.61%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC19,100$5.51M0.01%-48,20013F-HRTimeline
Seascape Capital Management18,492$5.33M1.52%+11513F-HRTimeline
Oliver Luxxe Assets LLC18,407$5.31M0.81%+7,19713F-HRTimeline
Poehling Capital Management, INC.18,204$5.25M1.07%-11413F-HRTimeline
State of Alaska, Department of Revenue17,795$5.13M0.05%-32013F-HRTimeline
OP Asset Management Ltd17,632$5.08M0.06%-5,77613F-HR/ATimeline
Carrera Capital Advisors17,573$5.07M0.85%-44113F-HRTimeline
CHASE INVESTMENT COUNSEL CORP17,215$4.96M1.39%new13F-HRTimeline
Horizon Investments, LLC16,961$4.89M0.06%+2,94613F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co16,826$4.86M0.01%-8,31013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA16,716$4.82M<0.01%-64,40313F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC16,290$4.73M0.01%+13,38313F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC15,663$4.52M0.02%+1613F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/15,640$4.51M<0.01%+97713F-HRTimelineGroup
Long Road Investment Counsel, LLC15,581$4.49M1.7%+48513F-HRTimeline
Altar Rock LLC15,542$4.48M5.37%13F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A15,278$4.4M0.01%+4,59513F-HRTimelineGroup
Moody Aldrich Partners LLC15,111$4.36M0.81%013F-HRTimeline
Karl Kapital LLC14,898$4.29M3.81%13F-HRTimeline
Prana Capital Management, LP14,885$4.29M0.16%new13F-HRTimeline
Carnegie Investment Counsel14,857$4.28M0.08%-86013F-HRTimeline
Illinois Municipal Retirement Fund14,572$4.2M0.05%-1,88213F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC13,874$4M0.01%+12,73213F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…13,737$3.96M0.02%-85313F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP13,468$3.88M0.01%+4,28813F-HR/ATimelineGroup
Bridgewater Associates, LP13,159$3.79M0.01%-1,17513F-HRTimeline
AMALGAMATED BANK12,794$3.69M0.03%-19613F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson12,770$3.69M<0.01%+82313F-HRTimelineGroup
State of Tennessee, Department of Treas…11,610$3.63M0.01%+25713F-HRTimeline
CWC Advisors, LLC.12,000$3.46M1.67%-4,30913F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC11,903$3.43M0.01%-17113F-HRTimelineGroup
LPL Financial LLC11,781$3.4M<0.01%+5,57113F-HRTimeline
Ilmarinen Mutual Pension Insurance Co11,745$3.39M0.03%013F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…11,707$3.37M0.04%-1,41513F-HRTimelineGroup
Police & Firemen's Retirement System of…11,616$3.35M0.03%-79713F-HRTimeline
Mubadala Investment Co PJSC11,575$3.34M0.02%-1,45713F-HRTimeline
Henshaw Capital LLC11,541$3.33M0.12%013F-HRTimeline
&PARTNERS11,434$3.27M0.02%+68813F-HRTimeline
Grantham, Mayo, Van Otterloo & Co. LLC11,259$3.25M0.01%-5,29913F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC10,935$3.16M<0.01%+9,46513F-HR/ATimelineGroup
CAPITAL FUND MANAGEMENT S.A.10,926$3.15M0.03%new13F-HRTimeline
BLAIR WILLIAM & CO/IL10,724$3.09M0.01%-1213F-HRTimeline
Amundiin group Amundi10,335$2.98M<0.01%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC10,100$2.91M0.04%-2,59213F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC9,093$2.9M0.03%-44313F-HRTimeline
Creative Planningin group Creative Planning9,832$2.83M<0.01%+2,36313F-HRTimelineGroup
COMERICA BANK9,661$2.79M0.01%-73713F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD9,434$2.72M0.01%-1,82613F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…9,349$2.7M0.01%+1,97213F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC9,165$2.64M<0.01%+3,63413F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC9,147$2.64M0.01%+1,40913F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…9,062$2.61M0.02%013F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…9,025$2.6M0.01%-71713F-HRTimelineGroup
Handelsbanken Fonder AB9,000$2.6M0.01%-1,00013F-HRTimeline
Oak Thistle LLC8,700$2.51M0.35%+5,74213F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC8,694$2.51M<0.01%+83013F-HRTimelineGroup
Entropy Technologies, LP8,524$2.46M0.13%-50013F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)8,463$2.44M0.01%-11,63713F-HRTimeline
Mariner, LLCin group Mariner, LLC8,414$2.43M<0.01%+3,49013F-HRTimelineGroup
AlphaQuest LLC8,258$2.38M0.13%+7,61513F-HRTimeline
Cetera Investment Advisers8,241$2.38M<0.01%+37113F-HRTimeline
KLP KAPITALFORVALTNING AS8,200$2.36M0.01%-40013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC8,148$2.35M<0.01%-3,20813F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM7,910$2.28M0.01%-50313F-HRTimeline
DIVERSIFIED TRUST CO7,898$2.28M0.04%+213F-HRTimeline
Louisiana State Employees Retirement Sy…7,800$2.25M0.04%-10013F-HRTimeline
COMMERCE BANKin group COMMERCE BANK7,552$2.18M0.01%+1113F-HRTimelineGroup
WEDGE CAPITAL MANAGEMENT L L P/NC7,086$2.04M0.04%-41513F-HRTimeline
Convergence Investment Partners, LLC7,066$2.04M0.41%new13F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…7,039$2.03M0.01%-25313F-HRTimeline
Ensign Peak Advisors, Inc7,038$2.03M<0.01%+2,45613F-HR/ATimeline
SkyView Investment Advisors, LLC6,990$2.02M0.25%-9913F-HRTimeline
Kennondale Capital Management LLC6,976$2.01M1.48%013F-HRTimeline
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding6,950$2M-60Timeline
STATE OF MICHIGAN RETIREMENT SYSTEM6,619$1.91M0.01%-10013F-HRTimeline
Citadel Investment Advisory, Inc.6,452$1.86M0.8%+2013F-HRTimeline
Summit Trail Advisors, LLC6,218$1.79M0.03%-62113F-HRTimeline
Crossmark Global Holdings, Inc.6,127$1.77M0.03%new13F-HRTimeline
Asset Management One Co., Ltd.5,920$1.73M<0.01%new13F-HRTimeline
Penn Capital Management Company, LLC5,734$1.68M0.13%+28413F-HRTimeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD5,800$1.67M0.05%-70013F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd5,771$1.66M0.02%+4,18313F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth5,748$1.66M<0.01%+2,97013F-HRTimelineGroup
LGT CAPITAL PARTNERS LTD.in group LGT CAPITAL PARTNERS LTD.5,730$1.65M0.08%-4,37013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC5,727$1.65M0.01%-4,58713F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND5,597$1.61M0.02%-10013F-HRTimeline
SOUTHEASTERN ASSET MANAGEMENT INC/TN/5,562$1.6M0.07%-1,27613F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P5,549$1.6M0.04%-21313F-HRTimeline