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Affiliated Managers Group SEC Filings

NYSE: AMGFinanceInvestment ManagersUSD

387.26+0.27 (+0.07%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Affiliated Managers Group filing overview

This page lists 60 recent SEC filings by Affiliated Managers Group (AMG), including 33 4, 10 8-K, 7 SCHEDULE 13G/A, 3 10-Q. The latest annual report (10-K) was filed on Feb 17, 2026 for the period ending Dec 31, 2025. The most recent quarterly report (10-Q) was filed on Aug 7, 2026.

The latest current report (8-K), used to disclose material events such as earnings releases and executive changes, was filed on Jul 30, 2026. Form 10-K is the audited annual report, 10-Q the quarterly report, 8-K covers material events, and Form 4 reports insider transactions. All documents link directly to SEC EDGAR.

Summary generated from market data by MetaCap's automated system. Methodology

AMG SEC filings

Affiliated Managers Group SEC filings
FiledFormDescriptionDocument
Sep 25, 20264/AStatement of changes in beneficial ownership (amendment)View on EDGAR
Aug 18, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 18, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 18, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 18, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 12, 2026SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Aug 7, 202610-QQuarterly reportView on EDGAR
Aug 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Jul 30, 20268-KResults of Operations and Financial Condition; Other EventsView on EDGAR
Jun 15, 20264Statement of changes in beneficial ownershipView on EDGAR
Jun 9, 20268-KEntry into a Material Definitive Agreement; Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet ArrangementView on EDGAR
Jun 8, 20264Statement of changes in beneficial ownershipView on EDGAR
Jun 3, 20264Statement of changes in beneficial ownershipView on EDGAR
May 28, 20268-KSubmission of Matters to a Vote of Security HoldersView on EDGAR
May 8, 20264Statement of changes in beneficial ownershipView on EDGAR
May 8, 20264Statement of changes in beneficial ownershipView on EDGAR
May 7, 202610-QQuarterly reportView on EDGAR
May 6, 20264Statement of changes in beneficial ownershipView on EDGAR
May 5, 20264Statement of changes in beneficial ownershipView on EDGAR
May 1, 20268-KResults of Operations and Financial Condition; Other EventsView on EDGAR
Apr 29, 2026SCHEDULE 13GBeneficial ownership report (passive)View on EDGAR
Apr 28, 2026SCHEDULE 13GBeneficial ownership report (passive)View on EDGAR
Apr 17, 2026DEF 14ADefinitive proxy statementView on EDGAR
Mar 26, 2026SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 9, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 5, 2026SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Feb 26, 20268-KDeparture or Appointment of Directors or Officers; Compensatory Arrangements; Regulation FD DisclosureView on EDGAR
Feb 17, 202610-KAnnual reportView on EDGAR
Feb 13, 2026SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Feb 12, 20268-KDeparture or Appointment of Directors or Officers; Compensatory ArrangementsView on EDGAR
Feb 12, 20268-KResults of Operations and Financial Condition; Other EventsView on EDGAR
Dec 23, 20254Statement of changes in beneficial ownershipView on EDGAR
Dec 11, 20258-KEntry into a Material Definitive Agreement; Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet ArrangementView on EDGAR
Dec 10, 2025424B5ProspectusView on EDGAR
Dec 8, 2025424B5ProspectusView on EDGAR
Dec 8, 20258-KOther EventsView on EDGAR
Nov 28, 20254Statement of changes in beneficial ownershipView on EDGAR
Nov 12, 20254Statement of changes in beneficial ownershipView on EDGAR
Nov 7, 2025SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Nov 6, 202510-QQuarterly reportView on EDGAR
Nov 5, 20254Statement of changes in beneficial ownershipView on EDGAR
Nov 3, 20258-KResults of Operations and Financial Condition; Other EventsView on EDGAR
Oct 30, 2025SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Oct 30, 2025SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Sep 9, 20254Statement of changes in beneficial ownershipView on EDGAR

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