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AMG
$383.76+0.19%
as of close, Oct 16, 2026
☾ AH $383.76 +0.19%
Affiliated Managers Group Inc.Stock · FinancialsRussell 1000 0.01%Russell 3000 0.01%US Stock Market 0.01%
PeersJPMHOODBACVBRK-BGS

AMG SEC filings (2026)

CIK 1004434 · Investment Advice (SIC 6282) · incorporated in DE · fiscal year ends in December

1,792 filings on EDGAR since 1997 · 37 annual, 87 quarterly, 246 current · financial statements · earnings

Latest 10-K
Feb 17, 2026
fiscal year to Dec 31, 2025
Latest 10-Q
Aug 7, 2026
quarter to Jun 30, 2026
Latest 8-K
Jul 30, 2026
AMG Reports Financial and Operating Results for the Second Quarter and First Half of 2026
Last earnings release
Jul 30, 2026
$8.29 vs $7.85 · ▲ 1.5%
Filings on file
1,792
since 1997, 920 insider forms

What happened, last 12 months#

Every earnings release with its print, every report with its quarter, the other 8-Ks by the headline of the press release they furnish or by their items, the proxy statements, and each day an insider bought or sold — newest first, each line opening the filing on EDGAR. The index by form and year follows.

August 2026

July 2026

June 2026

May 2026

April 2026

March 2026

February 2026

December 2025

November 2025

Insider transactions#

What officers, directors and 10% holders reported on Forms 4 and 5 over the last 13 months, from the documents themselves: one insider’s trades of one kind on one day are one row, with the shares, the price range and the total as filed. Open-market buys and sells first; awards, exercises, tax withholding, gifts and employee-plan purchases are grouped below them.

Over the last 13 months insiders sold $10.2M in 5 sales and bought $687K in 2 purchases; 62 other transactions (awards, exercises, tax withholding, gifts and plan purchases).

DateInsider
Jun 8, 2026Form 4Horgen Jay C.President and CEO · DirectorSold · $5.9M · 17,500 sh
Jun 1, 2026Form 4FRANQUI ANNETTEDirectorBought · $229K · 750 sh
May 8, 2026Form 4Matos Rodriguez Felix V.DirectorSold · $300K · 1,000 sh
May 6, 2026Form 4Ryan David ChristopherDirectorSold · $1.0M · 3,402 sh
May 6, 2026Form 4Cates G. StaleyDirectorBought · $459K · 1,500 sh
Mar 9, 2026Form 4Padiyar KavitaGeneral Counsel & Corp. Sec.Sold · $612K · 2,200 sh
Mar 6, 2026Form 4Wojcik Thomas MPresident and COOSold · $2.3M · 8,000 sh
Awards, exercises, withholding and plan purchases · 62 transactions
DateInsider
Aug 15, 2026Form 4 ×2Matos Rodriguez Felix V.DirectorExercise or conversion · $0 · 1,502 sh
Aug 15, 2026Form 4 ×2Matos Rodriguez Felix V.DirectorExercise or conversion · Stock Units · $0 · 1,502 sh
Aug 15, 2026Form 4Palandjian Tracy P.DirectorExercise or conversion · $0 · 848 sh
Aug 15, 2026Form 4Palandjian Tracy P.DirectorExercise or conversion · Stock Units · $0 · 848 sh
Aug 15, 2026Form 4STARR LOREN MDirectorExercise or conversion · $0 · 716 sh
Aug 15, 2026Form 4STARR LOREN MDirectorExercise or conversion · Stock Units · $0 · 716 sh
Aug 15, 2026Form 4FRANQUI ANNETTEDirectorExercise or conversion · $0 · 477 sh
Aug 15, 2026Form 4FRANQUI ANNETTEDirectorExercise or conversion · Stock Units · $0 · 477 sh
Jul 30, 2026Form 4STARR LOREN MDirectorAward · Stock Units · $0 · 411 sh
Jul 30, 2026Form 4Cates G. StaleyDirectorAward · Stock Units · $0 · 274 sh
Jul 30, 2026Form 4Engel MarcyDirectorAward · Stock Units · $0 · 274 sh
Jul 30, 2026Form 4Matos Rodriguez Felix V.DirectorAward · Stock Units · $0 · 274 sh
Jul 30, 2026Form 4Palandjian Tracy P.DirectorAward · Stock Units · $0 · 274 sh
Jul 30, 2026Form 4FRANQUI ANNETTEDirectorAward · Stock Units · $0 · 274 sh
Jul 30, 2026Form 4STARR LOREN MDirectorAward · Deferred Stock Units · $0 · 210 sh
Jun 12, 2026Form 4Palandjian Tracy P.DirectorTax withholding · $243K · 685 sh
Jun 12, 2026Form 4Palandjian Tracy P.DirectorExercise or conversion · $243K · 2,958 sh
Jun 12, 2026Form 4Palandjian Tracy P.DirectorExercise or conversion · Director Stock Option (Rig… · $0 · 2,958 sh
Jun 8, 2026Form 4Horgen Jay C.President and CEO · DirectorTax withholding · $13.4M · 39,671 sh
Jun 8, 2026Form 4Horgen Jay C.President and CEO · DirectorExercise or conversion · $5.6M · 75,000 sh
Jun 8, 2026Form 4Horgen Jay C.President and CEO · DirectorExercise or conversion · Employee Stock Option (Rig… · $0 · 75,000 sh
May 1, 2026Form 4Cates G. StaleyDirectorAward · Stock Units · $0 · 172 sh
Mar 5, 2026Form 4Horgen Jay C.Chief Executive Officer · DirectorTax withholding · $5.5M · 18,333 sh
Mar 5, 2026Form 4Wojcik Thomas MPresident and COOTax withholding · $2.7M · 9,136 sh
Mar 5, 2026Form 4Padiyar KavitaGeneral Counsel & Corp. Sec.Tax withholding · $683K · 2,282 sh
Mar 5, 2026Form 4RITCHEA DAVAChief Financial OfficerTax withholding · $87K · 292 sh
Mar 5, 2026Form 4Alvingham Karen L.DirectorTax withholding · $20K · 67 sh
Mar 5, 2026Form 4Horgen Jay C.Chief Executive Officer · DirectorAward · $0 · 27,260 sh
Mar 5, 2026Form 4Horgen Jay C.Chief Executive Officer · DirectorExercise or conversion · $0 · 17,563 sh
Mar 5, 2026Form 4Horgen Jay C.Chief Executive Officer · DirectorExercise or conversion · Stock Units · $0 · 17,563 sh
Mar 5, 2026Form 4Wojcik Thomas MPresident and COOAward · $0 · 10,619 sh
Mar 5, 2026Form 4Horgen Jay C.Chief Executive Officer · DirectorAward · Stock Units · $0 · 8,544 sh
Mar 5, 2026Form 4Wojcik Thomas MPresident and COOExercise or conversion · $0 · 7,272 sh
Mar 5, 2026Form 4Wojcik Thomas MPresident and COOExercise or conversion · Stock Units · $0 · 7,272 sh
Mar 5, 2026Form 4Padiyar KavitaGeneral Counsel & Corp. Sec.Award · $0 · 2,426 sh
Mar 5, 2026Form 4Padiyar KavitaGeneral Counsel & Corp. Sec.Exercise or conversion · $0 · 2,288 sh
Mar 5, 2026Form 4Padiyar KavitaGeneral Counsel & Corp. Sec.Exercise or conversion · Stock Units · $0 · 2,288 sh
Mar 5, 2026Form 4RITCHEA DAVAChief Financial OfficerAward · Stock Units · $0 · 1,667 sh
Mar 5, 2026Form 4Padiyar KavitaGeneral Counsel & Corp. Sec.Award · Stock Units · $0 · 1,191 sh
Mar 5, 2026Form 4Palandjian Tracy P.DirectorExercise or conversion · $0 · 867 sh
Mar 5, 2026Form 4Palandjian Tracy P.DirectorExercise or conversion · Stock Units · $0 · 867 sh
Mar 5, 2026Form 4Matos Rodriguez Felix V.DirectorExercise or conversion · $0 · 867 sh
Mar 5, 2026Form 4Matos Rodriguez Felix V.DirectorExercise or conversion · Stock Units · $0 · 867 sh
Mar 5, 2026Form 4Ryan David ChristopherDirectorExercise or conversion · $0 · 867 sh
Mar 5, 2026Form 4Ryan David ChristopherDirectorExercise or conversion · Stock Units · $0 · 867 sh
Mar 5, 2026Form 4Alvingham Karen L.DirectorExercise or conversion · $0 · 867 sh
Mar 5, 2026Form 4Alvingham Karen L.DirectorExercise or conversion · Stock Units · $0 · 867 sh
Mar 5, 2026Form 4STARR LOREN MDirectorExercise or conversion · $0 · 652 sh
Mar 5, 2026Form 4STARR LOREN MDirectorExercise or conversion · Stock Units · $0 · 652 sh
Mar 5, 2026Form 4RITCHEA DAVAChief Financial OfficerExercise or conversion · $0 · 601 sh
Mar 5, 2026Form 4RITCHEA DAVAChief Financial OfficerExercise or conversion · Stock Units · $0 · 601 sh
Mar 5, 2026Form 4FRANQUI ANNETTEDirectorExercise or conversion · $0 · 548 sh
Mar 5, 2026Form 4FRANQUI ANNETTEDirectorExercise or conversion · Stock Units · $0 · 548 sh
Mar 5, 2026Form 4STARR LOREN MDirectorAward · Stock Units · $0 · 503 sh
Mar 5, 2026Form 4FRANQUI ANNETTEDirectorAward · Stock Units · $0 · 335 sh
Mar 5, 2026Form 4Palandjian Tracy P.DirectorAward · Stock Units · $0 · 335 sh
Mar 5, 2026Form 4Matos Rodriguez Felix V.DirectorAward · Stock Units · $0 · 335 sh
Mar 5, 2026Form 4Engel MarcyDirectorAward · Stock Units · $0 · 335 sh
Mar 5, 2026Form 4Ryan David ChristopherDirectorAward · Stock Units · $0 · 335 sh
Mar 5, 2026Form 4STARR LOREN MDirectorAward · Deferred Stock Units · $0 · 257 sh
Mar 5, 2026Form 4Alvingham Karen L.DirectorAward · Stock Units · $0 · 171 sh
Mar 5, 2026Form 4Alvingham Karen L.DirectorAward · Deferred Stock Units · $0 · 98 sh

Reports and proxy statements#

Annual reports (10-K, 20-F, 40-F), quarterly reports (10-Q), current reports (8-K, 6-K) and proxy statements, newest first. An 8-K that furnishes a press release is headed by the release’s headline, its items beneath; any other 8-K is described by its items. A form opens the press release where there is one, else the document on EDGAR, or the filing’s index where it furnishes other exhibits.

2026 · 13 filings
FiledWhat it is
Aug 7, 202610-QQuarterly report, Q2 2026 — revenue $640.7M (+30% y/y), net income $185.9M, EPS $6.95
Jul 30, 20268-KEarnings release — EPS $8.29 vs $7.85 est. (+5.6%); revenue $640.7M (+30% y/y) 1.5%
Jun 9, 20268-KMaterial definitive agreement; New financial obligation
May 28, 20268-KShareholder vote results
May 7, 202610-QQuarterly report, Q1 2026 — revenue $544.9M (+10% y/y), net income $110.4M, EPS $3.84
May 1, 20268-KEarnings release — EPS $8.23 vs $8.10 est. (+1.6%); revenue $544.9M (+10% y/y) 1.2%
Apr 17, 2026ARSAnnual report to shareholders
Apr 17, 2026DEFA14AAdditional proxy materials
Apr 17, 2026DEF 14AProxy statement
Feb 26, 20268-KAMG Appoints G. Staley Cates to its Board of DirectorsDirectors or officers; compensation; Regulation FD disclosure
Feb 17, 202610-KAnnual report, FY2025 — revenue $2.07B (+2% y/y), net income $716.6M, EPS $22.74
Feb 12, 20268-KEarnings release — EPS $9.48 vs $8.75 est. (+8.3%); revenue $556.6M (+6% y/y) 6.8%
Feb 12, 20268-KDirectors or officers; compensation
2025 · 18 filings
FiledWhat it is
Dec 11, 20258-KMaterial definitive agreement; New financial obligation
Dec 8, 20258-KOther events
Nov 6, 202510-QQuarterly report, Q3 2025 — revenue $528.0M (+2% y/y), net income $212.4M, EPS $6.87
Nov 3, 20258-KEarnings release — EPS $6.10 vs $5.83 est. (+4.6%); revenue $528.0M (+2% y/y) 7.8%
Aug 14, 20258-KDirectors or officers; compensation; Regulation FD disclosure
Aug 7, 202510-QQuarterly report, Q2 2025 — revenue $493.2M (−1% y/y), net income $84.3M, EPS $2.80
Jul 31, 20258-KResults of operations; Other events
Jun 6, 20258-KDirectors or officers; compensation; Regulation FD disclosure
May 22, 20258-KShareholder vote results
May 8, 202510-QQuarterly report, Q1 2025 — revenue $496.6M (−1% y/y), net income $72.4M, EPS $2.20
May 8, 20258-KResults of operations; Other events
Apr 11, 2025ARSAnnual report to shareholders
Apr 11, 2025DEFA14AAdditional proxy materials
Apr 11, 2025DEF 14AProxy statement
Mar 7, 20258-KOther events
Feb 14, 202510-KAnnual report, FY2024 — revenue $2.04B (−1% y/y), net income $511.6M, EPS $15.13
Feb 6, 20258-KResults of operations; Other events
Feb 3, 20258-KDirectors or officers; compensation
2024 · 17 filings
FiledWhat it is
Nov 15, 20248-KMaterial definitive agreement; New financial obligation
Nov 7, 202410-QQuarterly report, Q3 2024 — revenue $516.4M (−2% y/y), net income $123.6M, EPS $3.78
Nov 4, 20248-KResults of operations; Other events
Aug 20, 20248-KMaterial definitive agreement; New financial obligation
Aug 2, 202410-QQuarterly report, Q2 2024 — revenue $500.3M (−2% y/y), net income $76.0M, EPS $2.26
Aug 2, 20248-KDirectors or officers; compensation
Jul 29, 20248-KResults of operations; Other events
May 24, 20248-KShareholder vote results
May 7, 202410-QQuarterly report, Q1 2024 — revenue $499.9M (−3% y/y), net income $149.8M, EPS $4.14
May 6, 20248-KResults of operations; Other events
Apr 12, 2024ARSAnnual report to shareholders
Apr 12, 2024DEFA14AAdditional proxy materials
Apr 12, 2024DEF 14AProxy statement
Mar 25, 20248-KDirectors or officers; compensation; Regulation FD disclosure
Mar 20, 20248-KMaterial definitive agreement; New financial obligation
Feb 16, 202410-KAnnual report, FY2023 — revenue $2.06B (−12% y/y), net income $672.9M, EPS $17.42
Feb 5, 20248-KResults of operations; Other events
2023 · 13 filings — 6 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms
FiledWhat it is
Nov 6, 202310-QQuarterly report, Q3 2023 — revenue $525.2M (−9% y/y), net income $217.0M, EPS $5.48
Aug 7, 202310-QQuarterly report, Q2 2023 — revenue $512.5M (−15% y/y), net income $125.3M, EPS $3.25
May 8, 202310-QQuarterly report, Q1 2023 — revenue $517.4M (−15% y/y), net income $134.5M, EPS $3.47
Apr 14, 2023ARSAnnual report to shareholders
Apr 14, 2023DEFA14AAdditional proxy materials
Apr 14, 2023DEF 14AProxy statement
Feb 17, 202310-KAnnual report, FY2022 — revenue $2.33B (−3% y/y), net income $1.15B, EPS $25.35

6 current reports (8-K) not listed; the year is on EDGAR.

2022 · 16 filings — 10 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms
FiledWhat it is
Nov 7, 202210-QQuarterly report, Q3 2022 — revenue $578.6M (+1% y/y), net income $112.6M, EPS $2.80
Aug 4, 202210-QQuarterly report, Q2 2022 — revenue $604.1M (+3% y/y), net income $109.4M, EPS $2.68
May 6, 202210-QQuarterly report, Q1 2022 — revenue $607.3M (+9% y/y), net income $146.0M, EPS $3.44
Apr 15, 2022DEFA14AAdditional proxy materials
Apr 15, 2022DEF 14AProxy statement
Feb 18, 202210-KAnnual report, FY2021 — revenue $2.41B (+19% y/y), net income $565.7M, EPS $13.05

10 current reports (8-K) not listed; the year is on EDGAR.

2021 · 18 filings — 10 × 8-K, 3 × 10-Q, 3 × DEFA14A and 2 other forms
FiledWhat it is
Nov 5, 202110-QQuarterly report, Q3 2021 — revenue $575.2M (+16% y/y), net income $128.4M, EPS $3.00
Aug 5, 202110-QQuarterly report, Q2 2021 — revenue $586.3M (+24% y/y), net income $109.0M, EPS $2.55
May 28, 2021DEFA14AAdditional proxy materials
May 26, 2021DEFA14AAdditional proxy materials
May 7, 202110-QQuarterly report, Q1 2021 — revenue $559.1M (+10% y/y), net income $149.9M, EPS $3.41
Apr 19, 2021DEFA14AAdditional proxy materials
Apr 19, 2021DEF 14AProxy statement
Feb 19, 202110-KAnnual report, FY2020 — revenue $2.03B (−9% y/y), net income $202.2M, EPS $4.33

10 current reports (8-K) not listed; the year is on EDGAR.

2020 · 21 filings — 13 × 8-K, 3 × 10-Q, 3 × DEFA14A and 2 other forms
FiledWhat it is
Oct 30, 202010-QQuarterly report, Q3 2020 — revenue $494.8M (−10% y/y), net income $71.3M, EPS $1.53
Jul 31, 202010-QQuarterly report, Q2 2020 — revenue $471.1M (−20% y/y), net income $30.7M, EPS $0.65
Jun 4, 2020DEFA14AAdditional proxy materials
May 18, 2020DEFA14AAdditional proxy materials
May 4, 202010-QQuarterly report, Q1 2020 — revenue $507.3M (−7% y/y), net income −$15.6M, EPS −$0.33
Apr 28, 2020DEFA14AAdditional proxy materials
Apr 28, 2020DEF 14AProxy statement
Feb 28, 202010-KAnnual report, FY2019 — revenue $2.24B (−6% y/y), net income $15.7M, EPS $0.31

13 current reports (8-K) not listed; the year is on EDGAR.

2019 · 18 filings — 10 × 8-K, 3 × 10-Q, 2 × DEFA14A and 3 other forms
FiledWhat it is
Nov 1, 201910-QQuarterly report, Q3 2019 — revenue $549.0M (−9% y/y), net income $86.3M, EPS $1.71
Aug 1, 201910-QQuarterly report, Q2 2019 — revenue $591.9M (−1% y/y), net income $107.7M, EPS $2.11
May 9, 201910-QQuarterly report, Q1 2019 — revenue $543.1M (−11% y/y), net income −$200.8M, EPS −$3.87
May 6, 2019DEFA14AAdditional proxy materials
Apr 17, 2019DEFA14AAdditional proxy materials
Apr 17, 2019DEF 14AProxy statement
Apr 1, 201910-K/AAnnual report, amended
Feb 22, 201910-KAnnual report, FY2018 — revenue $2.38B (+3% y/y), net income $243.6M, EPS $4.52

10 current reports (8-K) not listed; the year is on EDGAR.

2018 · 16 filings — 8 × 8-K, 3 × 10-Q, 2 × DEFA14A and 3 other forms
FiledWhat it is
Nov 1, 201810-QQuarterly report, Q3 2018 — revenue $601.3M (+3% y/y), net income $124.9M, EPS $2.34
Aug 2, 201810-QQuarterly report, Q2 2018 — revenue $600.2M (+5% y/y), net income $117.0M, EPS $2.16
May 29, 2018DEFA14AAdditional proxy materials
May 4, 201810-QQuarterly report, Q1 2018 — revenue $612.5M (+13% y/y), net income $153.0M, EPS $2.77
Apr 30, 2018DEFA14AAdditional proxy materials
Apr 30, 2018DEF 14AProxy statement
Mar 29, 201810-K/AAnnual report, amended
Feb 23, 201810-KAnnual report, FY2017 — revenue $2.31B (+5% y/y), net income $689.5M, EPS $12.03

8 current reports (8-K) not listed; the year is on EDGAR.

2017 · 16 filings — 7 × 8-K, 3 × 10-Q, 2 × DEFA14A and 4 other forms
FiledWhat it is
Nov 2, 201710-QQuarterly report, Q3 2017 — revenue $585.7M, net income $125.4M, EPS $2.22
Aug 3, 201710-QQuarterly report, Q2 2017 — revenue $570.9M, net income $126.3M, EPS $2.22
Jun 1, 2017DEFA14AAdditional proxy materials
May 5, 201710-QQuarterly report, Q1 2017 — revenue $544.3M, net income $122.5M, EPS $2.13
Apr 28, 2017DEFA14AAdditional proxy materials
Apr 28, 2017DEF 14AProxy statement
Apr 7, 2017PRE 14APreliminary proxy statement
Mar 31, 201710-K/AAnnual report, amended
Feb 24, 201710-KAnnual report, FY2016 — revenue $2.19B, net income $472.8M, EPS $8.57

7 current reports (8-K) not listed; the year is on EDGAR.

2016 · 16 filings — 9 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms

Counted, not listed; the year is on EDGAR.

2015 · 15 filings — 8 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms

Counted, not listed; the year is on EDGAR.

2014 · 19 filings — 12 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms

Counted, not listed; the year is on EDGAR.

2013 · 15 filings — 8 × 8-K, 3 × 10-Q, 2 × DEFA14A and 2 other forms

Counted, not listed; the year is on EDGAR.

2012 · 14 filings — 7 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms

Counted, not listed; the year is on EDGAR.

2011 · 16 filings — 10 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2010 · 17 filings — 10 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms

Counted, not listed; the year is on EDGAR.

2009 · 14 filings — 7 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms

Counted, not listed; the year is on EDGAR.

2008 · 17 filings — 11 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2007 · 16 filings — 10 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2006 · 17 filings — 10 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms

Counted, not listed; the year is on EDGAR.

2005 · 13 filings — 8 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2004 · 21 filings — 15 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2003 · 12 filings — 6 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2002 · 13 filings — 7 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2001 · 12 filings — 7 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2000 · 9 filings — 3 × 10-Q, 2 × 8-K, 1 × 10-K and 3 other forms

Counted, not listed; the year is on EDGAR.

1999 · 9 filings — 4 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

1998 · 7 filings — 3 × 10-Q, 1 × 10-K405, 1 × 8-K and 2 other forms

Counted, not listed; the year is on EDGAR.

Insider, ownership and other filings#

Insider ownership (Forms 3, 4, 5 and 144), beneficial ownership (Schedules 13D and 13G), registration and prospectus (S-1, S-3, S-8, 424B and related) and the rest, counted by year, with the newest 25 of each of the latest 3 years shown. A Form 4 is one insider’s transaction report; a 13G is a passive holder above five percent.

2026 · 49 filings — 28 × 4, 7 × 144, 4 × SCHEDULE 13G/A and 6 other forms
FiledWhat it is
Sep 25, 20264/AInsider transaction (Form 4), amended
Aug 28, 2026N-PXOther filings
Aug 18, 20264Insider transaction (Form 4)
Aug 18, 20264Insider transaction (Form 4)
Aug 18, 20264Insider transaction (Form 4)
Aug 18, 20264Insider transaction (Form 4)
Aug 13, 202613F-NTOther filings
Aug 12, 2026SCHEDULE 13G/AOther filings
Aug 3, 20264Insider transaction (Form 4)
Aug 3, 20264Insider transaction (Form 4)
Aug 3, 20264Insider transaction (Form 4)
Aug 3, 20264Insider transaction (Form 4)
Aug 3, 20264Insider transaction (Form 4)
Aug 3, 20264Insider transaction (Form 4)
Jun 30, 2026144Notice of proposed sale (Form 144)
Jun 26, 20263/AInitial insider holdings (Form 3), amended
Jun 15, 20264Insider transaction (Form 4)
Jun 8, 20264Insider transaction (Form 4)
Jun 8, 2026144Notice of proposed sale (Form 144)
Jun 3, 20264Insider transaction (Form 4)
May 14, 202613F-NTOther filings
May 8, 20264Insider transaction (Form 4)
May 8, 20264Insider transaction (Form 4)
May 8, 2026144Notice of proposed sale (Form 144)
May 6, 20264Insider transaction (Form 4)

The newest 25 of 49 shown; the full year is on EDGAR.

2025 · 65 filings — 46 × 4, 4 × 13F-NT, 4 × SCHEDULE 13G/A and 7 other forms
FiledWhat it is
Dec 23, 20254Insider transaction (Form 4)
Dec 10, 2025424B5Prospectus supplement
Dec 8, 2025FWPFree writing prospectus
Dec 8, 2025424B5Prospectus supplement
Nov 28, 20254Insider transaction (Form 4)
Nov 13, 202513F-NTOther filings
Nov 12, 20254Insider transaction (Form 4)
Nov 7, 2025SCHEDULE 13G/AOther filings
Nov 5, 20254Insider transaction (Form 4)
Oct 30, 2025SCHEDULE 13G/AOther filings
Oct 30, 2025SCHEDULE 13G/AOther filings
Oct 3, 20253Initial insider holdings (Form 3)
Sep 9, 20254Insider transaction (Form 4)
Sep 9, 2025144Notice of proposed sale (Form 144)
Sep 4, 20254Insider transaction (Form 4)
Sep 4, 20254Insider transaction (Form 4)
Aug 29, 2025N-PXOther filings
Aug 18, 20254Insider transaction (Form 4)
Aug 18, 20254Insider transaction (Form 4)
Aug 18, 20254Insider transaction (Form 4)
Aug 18, 20254Insider transaction (Form 4)
Aug 18, 20254Insider transaction (Form 4)
Aug 18, 20254Insider transaction (Form 4)
Aug 18, 20254Insider transaction (Form 4)
Aug 14, 20254Insider transaction (Form 4)

The newest 25 of 65 shown; the full year is on EDGAR.

2024 · 73 filings — 47 × 4, 7 × SC 13G/A, 4 × 13F-NT and 8 other forms
FiledWhat it is
Nov 13, 202413F-NTOther filings
Nov 6, 2024SC 13G/APassive holder above 5% (Schedule 13G), amended
Oct 18, 20244Insider transaction (Form 4)
Oct 8, 20244Insider transaction (Form 4)
Oct 4, 20244Insider transaction (Form 4)
Aug 30, 2024N-PXOther filings
Aug 20, 20244Insider transaction (Form 4)
Aug 20, 20244Insider transaction (Form 4)
Aug 20, 20244Insider transaction (Form 4)
Aug 19, 2024144Notice of proposed sale (Form 144)
Aug 16, 2024144Notice of proposed sale (Form 144)
Aug 16, 2024424B5Prospectus supplement
Aug 16, 20244Insider transaction (Form 4)
Aug 16, 20244Insider transaction (Form 4)
Aug 16, 20244Insider transaction (Form 4)
Aug 16, 20244Insider transaction (Form 4)
Aug 16, 20244Insider transaction (Form 4)
Aug 16, 20244Insider transaction (Form 4)
Aug 16, 2024144Notice of proposed sale (Form 144)
Aug 16, 2024FWPFree writing prospectus
Aug 15, 2024424B5Prospectus supplement
Aug 13, 202413F-NTOther filings
Jul 31, 20244Insider transaction (Form 4)
Jul 31, 20244Insider transaction (Form 4)
Jul 31, 20244Insider transaction (Form 4)

The newest 25 of 73 shown; the full year is on EDGAR.

2023 · 60 filings — 49 × 4, 5 × SC 13G/A, 4 × 13F-NT and 2 other forms

Counted, not listed; the year is on EDGAR.

2022 · 64 filings — 49 × 4, 5 × SC 13G/A, 4 × 13F-NT and 4 other forms

Counted, not listed; the year is on EDGAR.

2021 · 60 filings — 40 × 4, 5 × SC 13G/A, 4 × 13F-NT and 7 other forms

Counted, not listed; the year is on EDGAR.

2020 · 68 filings — 48 × 4, 5 × SC 13G/A, 4 × 13F-NT and 6 other forms

Counted, not listed; the year is on EDGAR.

2019 · 62 filings — 40 × 4, 4 × 13F-NT, 4 × SC 13G/A and 9 other forms

Counted, not listed; the year is on EDGAR.

2018 · 49 filings — 39 × 4, 4 × 13F-NT, 2 × 3 and 3 other forms

Counted, not listed; the year is on EDGAR.

2017 · 50 filings — 38 × 4, 4 × 13F-NT, 3 × SC 13G/A and 4 other forms

Counted, not listed; the year is on EDGAR.

2016 · 53 filings — 42 × 4, 4 × 13F-NT, 4 × 424B5 and 2 other forms

Counted, not listed; the year is on EDGAR.

2015 · 47 filings — 31 × 4, 4 × 13F-NT, 2 × 424B2 and 7 other forms

Counted, not listed; the year is on EDGAR.

2014 · 35 filings — 22 × 4, 4 × 13F-NT, 3 × 3 and 5 other forms

Counted, not listed; the year is on EDGAR.

2013 · 46 filings — 33 × 4, 4 × 13F-NT, 2 × CORRESP and 6 other forms

Counted, not listed; the year is on EDGAR.

2012 · 53 filings — 31 × 4, 4 × 13F-NT, 4 × 424B2 and 8 other forms

Counted, not listed; the year is on EDGAR.

2011 · 34 filings — 25 × 4, 4 × 13F-NT, 2 × SC 13G/A and 3 other forms

Counted, not listed; the year is on EDGAR.

2010 · 66 filings — 47 × 4, 4 × 13F-NT, 4 × UPLOAD and 9 other forms

Counted, not listed; the year is on EDGAR.

2009 · 63 filings — 42 × 4, 4 × 13F-NT, 3 × 425 and 7 other forms

Counted, not listed; the year is on EDGAR.

2008 · 47 filings — 25 × 4, 7 × 424B7, 4 × 13F-NT and 7 other forms

Counted, not listed; the year is on EDGAR.

2007 · 49 filings — 31 × 4, 5 × 424B3, 4 × 13F-NT and 5 other forms

Counted, not listed; the year is on EDGAR.

2006 · 66 filings — 42 × 4, 11 × 424B3, 4 × 13F-NT and 5 other forms

Counted, not listed; the year is on EDGAR.

2005 · 34 filings — 21 × 4, 4 × 13F-NT, 3 × SC 13G and 5 other forms

Counted, not listed; the year is on EDGAR.

2004 · 50 filings — 32 × 4, 5 × 424B3, 4 × 13F-NT and 6 other forms

Counted, not listed; the year is on EDGAR.

2003 · 40 filings — 22 × 4, 9 × 424B3, 4 × 13F-NT and 3 other forms

Counted, not listed; the year is on EDGAR.

2002 · 9 filings — 4 × 13F-NT, 2 × SC 13G, 1 × 424B3 and 2 other forms

Counted, not listed; the year is on EDGAR.

2001 · 19 filings — 7 × 424B3, 4 × 13F-NT, 2 × S-3 and 5 other forms

Counted, not listed; the year is on EDGAR.

2000 · 14 filings — 4 × 13F-NT, 4 × 4, 4 × SC 13G/A and 1 other form

Counted, not listed; the year is on EDGAR.

1999 · 13 filings — 3 × SC 13G, 2 × 13F-NT, 2 × S-3/A and 4 other forms

Counted, not listed; the year is on EDGAR.

1998 · 5 filings — 3 × SC 13G, 2 × SC 13G/A

Counted, not listed; the year is on EDGAR.

1997 · 11 filings — 7 × S-1/A, 1 × 424B4, 1 × 8-A12B and 2 other forms

Counted, not listed; the year is on EDGAR.

About this data#

Affiliated Managers Group Inc. (AMG) has 1,792 filings on EDGAR going back to 1997: 37 annual reports, 87 quarterly reports and 246 current reports, plus proxy statements, insider forms and ownership schedules. Its latest annual report, a 10-K, was filed on Feb 17, 2026 for the fiscal year ended Dec 31, 2025. The most recent 8-K, on Jul 30, 2026, furnished a press release headed “AMG Reports Financial and Operating Results for the Second Quarter and First Half of 2026”. Over the last 13 months insiders sold $10.2M in 5 sales and bought $687K in 2 purchases; 62 other transactions (awards, exercises, tax withholding, gifts and plan purchases). Not investment advice.

Every row is a filing EDGAR lists for the registrants that have been Affiliated Managers Group Inc., read from the SEC’s submissions index each morning; a filing accepted after that read appears the next day. Where a company changed its filing entity (a holding-company reorganisation, Google into Alphabet) the predecessor’s filings are shown for the years it filed as the company, derived from the filings themselves. Dates are the filing date; the period is the report’s own. The latest 3 years of reports are listed in full, the next years to 10 without their 8-Ks, and older years are counted; the other forms are counted too, with the newest 25 of each of the latest 3 years shown. Insider transactions are the Form 4 and Form 5 documents themselves, filed since January 2026, every number as the insider filed it: a day’s lots are summed, a blank price adds its shares and no dollars, and a purchase through an employee stock plan is a plan purchase, not insider buying. An 8-K’s headline is the first line of the press release it furnishes (Exhibit 99), read from the filing and shown word for word; where two independent readings of the exhibit do not agree, the 8-K is described by its items instead. The documents stay on sec.gov, public domain, and every link opens the SEC’s copy. ChartRow does not summarise or interpret filings.

FAQ#

Where can I read AMG's latest 10-K?
AMG's latest annual report, a 10-K, was filed on Feb 17, 2026 for the fiscal year ended Dec 31, 2025. It is linked above and opens on EDGAR, the SEC's own site, where every exhibit is also listed.
When did AMG last file an 8-K?
On Jul 30, 2026 it furnished a press release headed “AMG Reports Financial and Operating Results for the Second Quarter and First Half of 2026”. An 8-K reports a material event between quarterly reports; the one that furnishes the quarter's results is filed under Item 2.02, last on Jul 30, 2026.
Are AMG insiders buying or selling?
Over the last 13 months insiders sold $10.2M in 5 sales and bought $687K in 2 purchases; 62 other transactions (awards, exercises, tax withholding, gifts and plan purchases). The most recent sale: Horgen Jay C. (President and CEO · Director) sold 17,500 shares on Jun 8, 2026 for $5.9M. Every figure is as the insider filed it on Form 4; a sale under a 10b5-1 plan was scheduled in advance.
How many SEC filings has AMG made?
1,792 filings are on EDGAR under the registrant records that have been Affiliated Managers Group Inc., going back to 1997; 920 of them are insider ownership forms (Forms 3, 4, 5 and 144).