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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
MATHER GROUP, LLC.17$4.05K<0.01%new13F-HRTimeline
Addison Advisors LLC15$3.58K<0.01%013F-HRTimeline
NewEdge Advisors, LLC15$3.58K<0.01%013F-HRTimeline
HM PAYSON & CO14$3.34K<0.01%013F-HRTimeline
MassMutual Private Wealth & Trust, FSB14$3.34K<0.01%-2913F-HRTimeline
OAKWORTH CAPITAL, INC.13$3.1K<0.01%013F-HRTimeline
Tortoise Investment Management, LLC13$3.1K<0.01%+213F-HRTimeline
Nova Wealth Management, Inc.13$3.1K<0.01%013F-HRTimeline
Binnacle Investments Inc12$2.86K<0.01%new13F-HRTimeline
Fortitude Family Office, LLC10$2.38K<0.01%013F-HRTimeline
JPL Wealth Management, LLC9$2.15K<0.01%new13F-HRTimeline
Wealth Watch Advisors, INC9$2.15K<0.01%new13F-HRTimeline
Kilter Group LLC8$1.91K<0.01%013F-HRTimeline
S&T Bank/PA8$1.91K<0.01%new13F-HRTimeline
Beaird Harris Wealth Management, LLC8$1.83K<0.01%+313F-HRTimeline
DiNuzzo Private Wealth, Inc.8$1.8K<0.01%013F-HRTimeline
KAYNE ANDERSON RUDNICK INVESTMENT MANAG…6$1.51K<0.01%-1313F-HRTimeline
FIRST HORIZON CORP6$1.43K<0.01%13F-HRTimeline
SouthState Bank Corpin group SouthState Bank Corp6$1.43K<0.01%013F-HRTimelineGroup
Rialto Wealth Management, LLC6$1.43K<0.01%013F-HRTimeline
SJS Investment Consulting Inc.5$1.19K<0.01%013F-HRTimeline
Cromwell Holdings LLC5$1.19K<0.01%013F-HRTimeline
LANARK FINANCIAL, INC.5$1.19K<0.01%new13F-HRTimeline
Avion Wealth7$1K<0.01%013F-HRTimeline
Cloud Capital Management, LLC5$1K<0.01%new13F-HRTimeline
LOGAN CAPITAL MANAGEMENT INC4$954<0.01%013F-HRTimeline
Bogart Wealth, LLC4$954<0.01%013F-HRTimeline
CoreCap Advisors, LLC4$954<0.01%013F-HRTimeline
Bay Harbor Wealth Management, LLC4$953<0.01%+113F-HRTimeline
CENTRAL TRUST Co3$716<0.01%013F-HRTimeline
Prestige Wealth Management Group LLC3$716<0.01%013F-HR/ATimeline
Physician Wealth Advisors, Inc.3$716<0.01%013F-HRTimeline
AdvisorNet Financial, Inc3$715<0.01%013F-HRTimeline
Financial Management Professionals, Inc.3$715<0.01%013F-HRTimeline
Principia Wealth Advisory, LLC3$715<0.01%013F-HRTimeline
WPG Advisers, LLC3$715<0.01%013F-HRTimeline
HFM Investment Advisors, LLC3$715<0.01%013F-HRTimeline
Private Wealth Asset Management, LLC2$477<0.01%013F-HRTimeline
TFC Financial Management, Inc.1$239<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC1$238<0.01%-113F-HRTimeline
Raleigh Capital Management Inc.0$1<0.01%new13F-HRTimelineAmount filed as zero, left out of ratios.
Capital Advisors, Ltd. LLC1$00%013F-HRTimelineValue filed as zero, left out of ratios.