AMGNYSE,NYSE,NYSE,NYSE,NYSE SEC EDGAR

AFFILIATED MANAGERS GROUP, INC.

Investment Advice·JUPITER, FL·FY end 12/31·CIK 1004434

Overview Financials Compensation Governance Insiders Filings

Net 180d

-$7.6M

2 buys / 8 sales

Open-market buys

$917.5K

2 transactions

Open-market sales

$8.5M

8 transactions

Cluster windows

0 buy / 0 sell

Insider transaction timeline

2-year window · 42 buys · 34 sales · dot size = transaction value

AcquisitionsSalesCluster window (≥2 sales / month)

Form 4 transactions

Showing 30 of 76

Date	Insider	Type	Shares	Value
2026-05-08	Matos Rodriguez Felix V.	Sale	1,000	-$300.2K
2026-05-08	Matos Rodriguez Felix V.	Sale	1,000	-$300.2K
2026-05-06	Ryan David Christopher	Sale	3,402	-$1.0M
2026-05-06	Cates G. Staley	Buy	1,500	$458.7K
2026-05-06	Ryan David Christopher	Sale	3,402	-$1.0M
2026-05-06	Cates G. Staley	Buy	1,500	$458.7K
2026-03-09	Padiyar KavitaGeneral Counsel & Corp. Sec.	Sale	2,200	-$612.1K
2026-03-09	Padiyar KavitaGeneral Counsel & Corp. Sec.	Sale	2,200	-$612.1K
2026-03-06	Wojcik Thomas MPresident and COO	Sale	8,000	-$2.3M
2026-03-06	Wojcik Thomas MPresident and COO	Sale	8,000	-$2.3M
2026-03-05	Horgen Jay C.Chief Executive Officer	Exercise	17,563	—
2026-03-05	Horgen Jay C.Chief Executive Officer	Award	27,260	—
2026-03-05	Horgen Jay C.Chief Executive Officer	Tax withhold	18,333	-$5.5M
2026-03-05	Alvingham Karen L.	Exercise	867	—
2026-03-05	Alvingham Karen L.	Tax withhold	67	-$20.0K
2026-03-05	Ryan David Christopher	Exercise	867	—
2026-03-05	Padiyar KavitaGeneral Counsel & Corp. Sec.	Exercise	2,288	—
2026-03-05	Padiyar KavitaGeneral Counsel & Corp. Sec.	Award	2,426	—
2026-03-05	Padiyar KavitaGeneral Counsel & Corp. Sec.	Tax withhold	2,282	-$682.7K
2026-03-05	Matos Rodriguez Felix V.	Exercise	867	—
2026-03-05	Palandjian Tracy P.	Exercise	867	—
2026-03-05	Wojcik Thomas MPresident and COO	Exercise	7,272	—
2026-03-05	Wojcik Thomas MPresident and COO	Award	10,619	—
2026-03-05	Wojcik Thomas MPresident and COO	Tax withhold	9,136	-$2.7M
2026-03-05	FRANQUI ANNETTE	Exercise	548	—
2026-03-05	STARR LOREN M	Exercise	652	—
2026-03-05	RITCHEA DAVAChief Financial Officer	Exercise	601	—
2026-03-05	RITCHEA DAVAChief Financial Officer	Tax withhold	292	-$87.4K
2026-03-05	Horgen Jay C.Chief Executive Officer	Exercise	17,563	—
2026-03-05	Horgen Jay C.Chief Executive Officer	Award	27,260	—