Affiliated Managers Group Inc

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Affiliated Managers Group Inc
TickerMGRE
CIK #0001004434
CUSIP008252827
SectorFinance - Investment Advice
Address600 Hale Street /, Prides Crossing, MA 01965
Source [EDGAR]
CIK Filing 2011 - 2026
[0001004434] 10-K
[0001004434] 10-Q
[0001004434] 13F-NT
[0001004434] 3
[0001004434] 4
[0001004434] 5
[0001004434] 8-K
[0001004434] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Capital Management LLC Affiliated Managers Group Inc [2026-04-29] 0.0
Vanguard Portfolio Management LLC Affiliated Managers Group Inc [2026-04-28] 0.0
Integrated Core Strategies US LLC Affiliated Managers Group Inc [2025-06-06] 0.0
Integrated Core Strategies US LLC Affiliated Managers Group Inc [2025-05-14] 0.0
Clarkston Capital Partners LLC Affiliated Managers Group Inc [2023-02-14] 5.94
Eaton Vance Management Affiliated Managers Group Inc [2021-02-16] 6.39
EdgePoint Investment Group Inc Affiliated Managers Group Inc [2019-12-10] 16.14
EdgePoint Investment Group Inc Affiliated Managers Group Inc [2019-02-13] 8.8
State Street Corp Affiliated Managers Group Inc [2019-02-13] 5.1
Manulife Financial Corp Affiliated Managers Group Inc [2018-02-13] 9.0
Vanguard Group Inc Affiliated Managers Group Inc [2014-02-10] 5.46
[2013-01-09] None
Form 3/4/5 Filer 2011 - 2026
Affiliated Managers Group Inc
Palandjian Tracy P
Horgen Jay C
Franqui Annette
Matos Rodriguez Felix V
Ryan David Christopher
Cates G Staley
Patel Cheerag B
Starr Loren M
Yerburgh Karen
Padiyar Kavita
Wojcik Thomas M
Ritchea DAVA
Engel Marcy
Churchill Dwight D
Jeffery Reuben III
Jamal Rizwan M
Atkinson Tracy A
Erickson John R
Billings David M
Earle Glenn
Ryan Patrick T
Byrne Samuel T
Healey Sean M
Dalton Nathaniel
Cutler Hugh
Ferguson Niall
Zeitlin Jide James
MacEwen Peter W
Dyson Andrew
NUTT William J
Meyerman Harold J
AMG Pantheon Master Fund LLC
Rodriguez Rita M
Kingston John III
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Padiyar Kavita
Common Stock
2026-03-09 Sell 2,200 $278.24 612,128
Wojcik Thomas M
Common Stock
2026-03-06 Sell 8,000 $286.30 2,290,400
Padiyar Kavita
Stock Units · derivative
2026-03-05 Grant 1,191 $0.00
Wojcik Thomas M
Common Stock
2026-03-05 Tax withheld 9,136 $299.18 2,733,308
Horgen Jay C
Stock Units · derivative
2026-03-05 Option exercise 17,563 $0.00
Palandjian Tracy P
Stock Units · derivative
2026-03-05 Grant 335 $0.00
Matos Rodriguez Felix V
Stock Units · derivative
2026-03-05 Option exercise 867 $0.00
Ritchea DAVA
Common Stock
2026-03-05 Tax withheld 292 $299.18 87,361
Matos Rodriguez Felix V
Common Stock
2026-03-05 Option exercise 867 $0.00
Ritchea DAVA
Common Stock
2026-03-05 Option exercise 601 $0.00
Wojcik Thomas M
Common Stock
2026-03-05 Option exercise 7,272 $0.00
Yerburgh Karen
Stock Units · derivative
2026-03-05 Grant 171 $0.00
Starr Loren M
Common Stock
2026-03-05 Option exercise 652 $0.00
Horgen Jay C
Common Stock
2026-03-05 Tax withheld 18,333 $299.18 5,484,867
Yerburgh Karen
Deferred Stock Units · derivative
2026-03-05 Grant 98 $0.00
Engel Marcy
Stock Units · derivative
2026-03-05 Grant 335 $0.00
Palandjian Tracy P
Common Stock
2026-03-05 Option exercise 867 $0.00
Ryan David Christopher
Stock Units · derivative
2026-03-05 Option exercise 867 $0.00
Starr Loren M
Deferred Stock Units · derivative
2026-03-05 Grant 257 $0.00
Matos Rodriguez Felix V
Stock Units · derivative
2026-03-05 Grant 335 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 3 182,650
2025-12-31 3 178,050
2025-09-30 3 178,250
2025-06-30 3 142,800
2025-03-31 2 98,200
2024-12-31 2 83,200
2024-09-30 2 103,200
2024-06-30 1 100,000
2024-03-31 1 200,000
Form 13F Holdings
Firm Period DFND Voting Shares
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