AMG · NYSE, NYSE, NYSE, NYSE, NYSE · CIK 0001004434

AFFILIATED MANAGERS GROUP, INC.

AFFILIATED MANAGERS GROUP, INC.’s most recent SEC filing in our snapshot is a Form 4/A filed on Sep 25, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $2.1B and net income of $716.6M, according to its XBRL data on EDGAR. Its EDGAR record lists 32 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
$2.1B
Net income, FY2025
$716.6M
Form 4 filings on record, past 12 months
32

Company overview

Legal name (as filed)
AFFILIATED MANAGERS GROUP, INC.
Tickers
AMG, MGR, MGRB, MGRD, MGRE
SEC Central Index Key (CIK)
0001004434
Industry (SIC)
Investment Advice (code 6282)
Business address
JUPITER, FL
State or country of incorporation
DE
Fiscal year ends
December 31
SEC filer category
Large accelerated filer
Position in SEC ticker list
#898 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from AFFILIATED MANAGERS GROUP, INC.’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$2.4BFY2021$2.3BFY2022$2.1BFY2023$2.0BFY2024$2.1BFY2025
Net income
$565.7MFY2021$1.1BFY2022$672.9MFY2023$511.6MFY2024$716.6MFY2025
AMG annual results
ItemFY2021
ended Dec 31, 2021		FY2022
ended Dec 31, 2022		FY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$2.4B$2.3B$2.1B$2.0B$2.1B
Net income$565.7M$1.1B$672.9M$511.6M$716.6M
Diluted EPS$13.05$25.35$17.42$15.13$22.74
Total assets$8.9B$8.9B$9.1B$8.8B$9.2B
Cash and equivalents$908.5M$429.2M$813.6M$950.0M$586.0M

XBRL tags used: revenue = RevenueFromContractWithCustomerExcludingAssessedTax; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareDiluted; cash = CashAndCashEquivalentsAtCarryingValue. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

AMG latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Feb 17, 202610-KAnnual report· period Dec 31, 2025Document · Index
Aug 7, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Jul 30, 20268-KResults of operations; Other events· period Jul 30, 2026Document · Index
Apr 17, 2026DEF 14ADefinitive proxy statement· period May 27, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about AFFILIATED MANAGERS GROUP, INC., by form type:

4 ×17144 ×48-K ×43 ×213F-NT ×210-Q ×2SCHEDULE 13G ×24/A ×1N-PX ×1SCHEDULE 13G/A ×13/A ×1ARS ×1DEFA14A ×1DEF 14A ×1
AMG recent filings
FiledFormWhat it isOriginal
Sep 25, 20264/AStatement of changes in beneficial ownership (insider trade)· period Aug 15, 2026Document · Index
Aug 28, 2026N-PXN-PX· period Jun 30, 2026Document · Index
Aug 18, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 15, 2026Document · Index
Aug 18, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 15, 2026Document · Index
Aug 18, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 15, 2026Document · Index
Aug 18, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 15, 2026Document · Index
Aug 13, 202613F-NT13F-NT· period Jun 30, 2026Document · Index
Aug 12, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Aug 7, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Aug 3, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 30, 2026Document · Index
Aug 3, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 30, 2026Document · Index
Aug 3, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 30, 2026Document · Index
Aug 3, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 30, 2026Document · Index
Aug 3, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 30, 2026Document · Index
Aug 3, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 30, 2026Document · Index
Jul 30, 20268-KResults of operations; Other events· period Jul 30, 2026Document · Index
Jun 30, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 26, 20263/AInitial statement of beneficial ownership· period Apr 15, 2026Document · Index
Jun 15, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 12, 2026Document · Index
Jun 9, 20268-KMaterial agreement; New financial obligation· period Jun 9, 2026Document · Index
Jun 8, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 8, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 8, 2026Document · Index
Jun 3, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 1, 2026Document · Index
May 28, 20268-KShareholder vote results· period May 27, 2026Document · Index
May 14, 202613F-NT13F-NT· period Mar 31, 2026Document · Index
May 8, 2026144Notice of proposed sale of securitiesDocument · Index
May 8, 20264Statement of changes in beneficial ownership (insider trade)· period May 8, 2026Document · Index
May 8, 20264Statement of changes in beneficial ownership (insider trade)· period May 6, 2026Document · Index
May 7, 202610-QQuarterly report· period Mar 31, 2026Document · Index
May 6, 2026144Notice of proposed sale of securitiesDocument · Index
May 6, 20264Statement of changes in beneficial ownership (insider trade)· period May 6, 2026Document · Index
May 5, 20264Statement of changes in beneficial ownership (insider trade)· period May 1, 2026Document · Index
May 1, 20268-KResults of operations; Other events· period May 1, 2026Document · Index
Apr 29, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Apr 28, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Apr 24, 20263Initial statement of beneficial ownership· period Apr 15, 2026Document · Index
Apr 17, 2026ARSARS· period Dec 31, 2025Document · Index
Apr 17, 2026DEFA14AAdditional proxy soliciting materialsDocument · Index
Apr 17, 2026DEF 14ADefinitive proxy statement· period May 27, 2026Document · Index
Apr 6, 20263Initial statement of beneficial ownership· period Apr 1, 2026Document · Index

Insider filing activity

32 Form 4 filings appear in AFFILIATED MANAGERS GROUP, INC.’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001004434 and XBRL company facts. AFFILIATED MANAGERS GROUP, INC. on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.