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Disclosery

AMG AFFILIATED MANAGERS GROUP

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Stock (common), issuer CIK 1004434

442 managers (452 13F filers) reported a position in AMG shares at 2025-09-30, 26,484,591 shares in all. 59 filers opened a position and 37 filers sold out during the quarter.

Managers
442
13F filers
452
New
59
Added
141
Reduced
163
Sold out
37
Shares held by filers
26,484,591

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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.2,821,855$673M0.01%-84513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding2,782,225$663M-40,085Timeline
MORGAN STANLEYin group MORGAN STANLEY1,941,518$463M0.03%-75,97613F-HR/ATimelineGroup
ARIEL INVESTMENTS, LLC1,263,824$301M3.22%-91,25113F-HRTimeline
Clarkston Capital Partners, LLC1,232,333$294M6.33%-203,02113F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp1,157,344$276M0.28%+24,21713F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,017,113$243M0.19%-552,21313F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP963,708$230M0.01%-17,18113F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP684,116$163M0.04%+7,89113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC645,141$154M0.12%+5,35313F-HRTimelineGroup
LYRICAL ASSET MANAGEMENT LP579,835$138M1.95%+40,79513F-HRTimeline
FULLER & THALER ASSET MANAGEMENT, INC.570,275$136M0.46%-58213F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC509,831$122M0.01%+5,47313F-HRTimelineGroup
LSV ASSET MANAGEMENT479,624$114M0.25%+3,40013F-HRTimeline
UBS Group AGgroup of 2 filers holding462,851$110M+125,133Timeline
Channing Capital Management, LLC425,037$101M2.67%-5,42713F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE393,161$93.7M0.12%+50,21913F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management336,063$80.1M0.16%+24,68013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP334,368$79.7M0.01%-78313F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co312,568$74.5M0.01%+1,20113F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.295,081$70.4M0.21%new13F-HRTimelineGroup
Kiltearn Partners LLP283,814$67.7M13.56%-16,30013F-HRTimeline
BRUNI J V & CO /CO254,989$60.8M6.14%-38,74613F-HRTimeline
Holocene Advisors, LP253,935$60.5M0.14%+152,98213F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/244,253$58.2M0.01%+10,17313F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp244,143$58.2M0.01%-11,63613F-HRTimelineGroup
Fisher Asset Management, LLC203,723$48.6M0.02%+35,34913F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC192,886$46M0.01%+75,13913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/184,726$44M<0.01%+8613F-HR/ATimelineGroup
FMR LLCin group FMR LLC183,705$43.8M<0.01%-2,28013F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP161,478$38.5M0.03%-73,20113F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC134,456$32.1M0.02%+27,11113F-HRTimeline
Franklin Resourcesgroup of 2 filers holding118,627$30.7M+7,414Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC126,079$30.1M<0.01%+4,97513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO125,643$30M<0.01%-13,22213F-HR/ATimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND124,562$29.7M0.04%-1,85313F-HRTimeline
ALLIANCEBERNSTEIN L.P.114,979$27.4M0.01%+74,12613F-HRTimeline
Caisse de depot et placement du Quebec100,948$24.1M0.04%+98,60113F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO97,874$23.3M0.03%+37,20213F-HRTimelineGroup
Retirement Systems of Alabama96,837$23.1M0.08%-39513F-HRTimeline
Invesco Ltd.in group Invesco Ltd.96,721$23.1M<0.01%+14,46013F-HRTimelineGroup
Treasurer of the State of North Carolina95,458$22.8M0.07%-71913F-HRTimeline
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD87,601$20.9M0.02%-1,86913F-HRTimelineGroup
NORTH STAR ASSET MANAGEMENT INC85,334$20.3M0.83%-16,74713F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA81,119$19.3M<0.01%+62,42013F-HRTimelineGroup
RHUMBLINE ADVISERS81,059$19.3M0.02%+2,45813F-HRTimeline
Goodman Financial Corp80,261$19.1M3.73%-1,99513F-HRTimeline
Man Group plcin group Man Group plc78,984$18.8M0.04%+4,90713F-HRTimelineGroup
Polar Capital Holdings Plcin group Polar Capital Holdings Plc78,523$18.7M0.09%+39,05013F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC72,965$17.4M0.06%013F-HRTimeline
Nuveen, LLCin group TIAA72,675$17.3M<0.01%+4,08913F-HRTimelineGroup
ALGERT GLOBAL LLC70,890$16.9M0.28%+13,67013F-HR/ATimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC69,466$16.6M0.02%+24,54413F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC67,300$16M0.02%+22,90013F-HRTimeline
Wallace Capital Management Inc.66,900$16M1.98%-18513F-HRTimeline
California Public Employees Retirement …66,387$15.8M0.01%-84713F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN63,554$15.2M<0.01%+12,16013F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding63,387$15.1M-1,157Timeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC62,449$14.9M<0.01%+3,72813F-HRTimelineGroup
Quantinno Capital Management LP61,349$14.6M0.04%+10,78813F-HRTimeline
Concentric Capital Strategies, LP60,172$14.3M0.69%new13F-HRTimeline
Swiss National Bank55,100$13.1M0.01%+10013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…54,306$12.9M0.01%-3,34213F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC52,729$12.6M<0.01%+1,72813F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\51,253$12.2M<0.01%+32113F-HRTimelineGroup
REINHART PARTNERS, LLC.48,570$11.6M0.38%-15,84013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…47,395$11.3M0.04%+18,88613F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC47,298$11.3M<0.01%-47,54513F-HR/ATimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …46,905$11.2M0.02%+3,66213F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc46,298$11M<0.01%-1,92213F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.44,610$10.6M0.01%-2,46213F-HRTimelineGroup
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …44,580$10.6M0.01%+2,40813F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…39,633$9.45M0.02%+25,39413F-HRTimelineGroup
STOREBRAND ASSET MANAGEMENT AS38,578$9.2M0.02%013F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC38,355$9.14M0.04%-62,06713F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…36,566$8.72M0.02%-24713F-HRTimeline
Calamos Advisors LLCin group Calamos Advisors LLC35,430$8.45M0.03%013F-HRTimelineGroup
ZACKS INVESTMENT MANAGEMENT31,192$7.44M0.06%+4,98113F-HRTimeline
Livforsakringsbolaget Skandia, Omsesidi…29,050$6.93M0.27%+80013F-HRTimeline
NICOLA WEALTH MANAGEMENT LTD.29,000$6.91M0.62%+7,00013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC28,270$6.74M0.01%-1,07513F-HRTimelineGroup
Edgestream Partners, L.P.28,093$6.7M0.2%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding28,002$6.68M+2,723Timeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…27,453$6.55M0.01%+113F-HRTimeline
Sterling Capital Management LLC27,027$6.44M0.09%+52313F-HRTimeline
Moran Wealth Management, LLC25,401$6.06M0.18%-24913F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co25,136$5.99M0.01%+31813F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …24,858$5.93M<0.01%013F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP24,481$5.84M<0.01%+14,23413F-HRTimeline
OP Asset Management Ltd23,408$5.58M0.07%+22,58313F-HR/ATimeline
Genus Capital Management Inc.22,635$5.4M0.63%+20,17513F-HRTimeline
PARAGON ASSOCIATES & PARAGON ASSOCIATES…22,467$5.36M9.55%new13F-HRTimeline
Kestra Advisory Services, LLCgroup of 2 filers holding20,825$4.97M-1,349Timeline
Mitsubishi UFJ Trust & Banking Corpgroup of 2 filers holding20,648$4.92M+2,307Timeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …20,523$4.89M<0.01%-71213F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…20,108$4.79M0.01%-3,30013F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)20,100$4.79M0.02%+10,20013F-HRTimeline
Amplius Wealth Advisors, LLC19,596$4.67M0.4%013F-HRTimeline
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…19,476$4.64M0.01%013F-HRTimelineGroup
ExodusPoint Capital Management, LP19,217$4.58M0.06%new13F-HRTimeline
Seascape Capital Management18,377$4.38M1.26%+1,64013F-HRTimeline
Poehling Capital Management, INC.18,318$4.37M0.92%-7413F-HRTimeline
State of Alaska, Department of Revenue18,115$4.32M0.04%-9013F-HRTimeline
Carrera Capital Advisors18,014$4.3M0.77%new13F-HRTimeline
Grantham, Mayo, Van Otterloo & Co. LLC16,558$3.95M0.01%-16313F-HRTimeline
Illinois Municipal Retirement Fund16,454$3.92M0.05%-1,98013F-HRTimeline
CWC Advisors, LLC.16,309$3.89M1.9%-16013F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …15,728$3.75M0.04%-1,89113F-HRTimelineGroup
Carnegie Investment Counsel15,717$3.75M0.07%-21013F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC15,647$3.73M0.01%+713F-HRTimelineGroup
Moody Aldrich Partners LLC15,111$3.6M0.68%+7,18913F-HRTimeline
Long Road Investment Counsel, LLC15,096$3.6M1.27%013F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC14,739$3.51M0.01%-3,74313F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/14,663$3.5M<0.01%-95013F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…14,590$3.48M0.02%new13F-HRTimelineGroup
Bridgewater Associates, LP14,334$3.42M0.01%-95,91413F-HRTimeline
Horizon Investments, LLC14,015$3.34M0.04%+8,79513F-HRTimeline
DANSKE BANK A/S13,497$3.22M0.01%+13,16013F-HR/ATimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…13,122$3.13M0.03%-1,01613F-HRTimelineGroup
Mubadala Investment Co PJSC13,032$3.11M0.02%new13F-HRTimeline
AMALGAMATED BANK12,990$3.1M0.02%-12913F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC12,692$3.03M0.04%+2,96913F-HR/ATimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding12,495$2.98M+5,495Timeline
Police & Firemen's Retirement System of…12,413$2.96M0.02%+1,80913F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…12,100$2.89M0.01%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC12,074$2.88M0.01%new13F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson11,947$2.85M<0.01%013F-HRTimelineGroup
Ilmarinen Mutual Pension Insurance Co11,745$2.8M0.02%013F-HRTimeline
Henshaw Capital LLC11,541$2.75M0.1%+113F-HRTimeline
HRT FINANCIAL LP11,401$2.72M0.01%+1,98113F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC11,356$2.71M<0.01%-15,37813F-HRTimelineGroup
State of Tennessee, Department of Treas…11,353$2.71M0.01%-1,50013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD11,260$2.68M0.01%-1613F-HRTimeline
Oliver Luxxe Assets LLC11,210$2.67M0.42%new13F-HRTimeline
&PARTNERS10,746$2.56M0.02%-36713F-HRTimeline
BLAIR WILLIAM & CO/IL10,736$2.56M0.01%-14913F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A10,683$2.55M0.01%13F-HRTimelineGroup
IEQ CAPITAL, LLC10,529$2.51M0.01%new13F-HRTimeline
COMERICA BANK10,398$2.48M0.01%-72013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC10,314$2.46M0.02%-2,12713F-HRTimeline
LGT CAPITAL PARTNERS LTD.in group LGT CAPITAL PARTNERS LTD.10,100$2.41M0.12%-51,71513F-HRTimelineGroup
Handelsbanken Fonder AB10,000$2.38M0.01%+2,40013F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…9,742$2.32M0.01%-99013F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC9,536$2.27M0.02%-80613F-HRTimeline
CITIGROUP INCin group CITIGROUP INC9,363$2.23M<0.01%+7713F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP9,180$2.19M<0.01%+73113F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…9,062$2.16M0.02%-2,00013F-HRTimeline
Entropy Technologies, LP9,024$2.15M0.16%+4,03713F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS8,818$2.1M0.01%+28913F-HRTimeline
KLP KAPITALFORVALTNING AS8,600$2.05M0.01%-1,30013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM8,413$2.01M0.01%+1313F-HRTimeline
NISA INVESTMENT ADVISORS, LLC7,973$1.9M0.01%-113F-HRTimeline
Louisiana State Employees Retirement Sy…7,900$1.88M0.03%-10013F-HRTimeline
DIVERSIFIED TRUST CO7,896$1.88M0.04%013F-HRTimeline
Cetera Investment Advisers7,870$1.88M<0.01%+2,19513F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC7,864$1.88M<0.01%-68813F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC7,738$1.84M0.01%+1,87013F-HRTimeline
COMMERCE BANKin group COMMERCE BANK7,541$1.8M0.01%013F-HRTimelineGroup
WEDGE CAPITAL MANAGEMENT L L P/NC7,501$1.79M0.03%-1,00113F-HRTimeline
Creative Planningin group Creative Planning7,469$1.78M<0.01%+1,16213F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…7,377$1.76M<0.01%+46413F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…7,292$1.74M0.01%-1213F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding7,265$1.73M+6,155Timeline
Cubist Systematic Strategies, LLC7,215$1.72M0.02%+95813F-HRTimeline
SkyView Investment Advisors, LLC7,089$1.69M0.21%+9213F-HRTimeline
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding7,010$1.67M-11Timeline
Kennondale Capital Management LLC6,976$1.66M1.27%+2,08413F-HRTimeline
Summit Trail Advisors, LLC6,839$1.63M0.02%+4,04413F-HRTimeline
SOUTHEASTERN ASSET MANAGEMENT INC/TN/6,838$1.63M0.08%013F-HRTimeline
STATE OF MICHIGAN RETIREMENT SYSTEM6,719$1.6M0.01%-10013F-HRTimeline
Interval Partners, LP6,703$1.6M0.03%-15,91313F-HRTimeline
Quantbot Technologies LP6,549$1.56M0.04%+4,27713F-HRTimeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD6,500$1.55M0.05%013F-HRTimeline
Citadel Investment Advisory, Inc.6,432$1.53M0.7%-1713F-HRTimeline
LPL Financial LLC6,210$1.48M<0.01%+2,76913F-HRTimeline
CWM, LLCin group CWM, LLC5,990$1.43M<0.01%-49613F-HRTimelineGroup
MARTINGALE ASSET MANAGEMENT L P5,762$1.37M0.03%-89013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND5,697$1.36M0.02%-15013F-HRTimeline
Penn Capital Management Company, LLC5,450$1.32M0.1%-2,15613F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC5,531$1.32M<0.01%-5813F-HRTimelineGroup
OneDigital Investment Advisors LLC5,425$1.29M0.01%-8713F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC5,327$1.27M<0.01%+5,31913F-HRTimelineGroup
Ameritas Investment Partners, Inc.group of 2 filers holding5,326$1.27M-200Timeline
L2 Asset Management, LLC5,253$1.25M0.18%+47813F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding5,038$1.2M+255Timeline
Redwood Investment Management, LLCin group Redwood Investment Management…5,032$1.2M0.13%-1,93413F-HR/ATimelineGroup
Mariner, LLCin group Mariner, LLC4,924$1.17M<0.01%+11113F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS4,902$1.17M<0.01%-57413F-HRTimelineGroup
Vise Technologies, Inc.4,856$1.16M0.04%-27513F-HRTimeline
Blue Trust, Inc.4,787$1.14M0.01%+1913F-HRTimeline
MACKENZIE FINANCIAL CORP4,762$1.14M<0.01%+95013F-HRTimeline
Ensign Peak Advisors, Inc4,582$1.09M<0.01%-5,36013F-HR/ATimeline
Traub Capital Management LLC4,575$1.09M1.08%-20013F-HRTimeline
SG Americas Securities, LLC4,137$986K<0.01%+1,05113F-HRTimeline
Williamson Legacy Group, LLC4,047$965K0.75%new13F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT3,917$934K0.01%+50913F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO3,905$931K0.01%-40613F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…3,868$922K<0.01%-69013F-HRTimelineGroup
Advisory Services Network, LLC3,848$917K0.01%+30113F-HRTimeline
Pacer Advisors, Inc.3,788$903K<0.01%new13F-HRTimeline