Affiliated Managers Group, Inc. AMG NYSE

NYSE • Financial Services • Asset Management • US • USD

SharesGrow Score

74/100

5/7 Pass

SharesGrow Intrinsic Value

Affiliated Managers Group, Inc. (AMG) has 20 known insider and institutional holders on record. The largest holder is DALTON NATHANIEL with 206,589 shares. Other notable holders include Dyson Andrew and HEALEY SEAN M.

Over the last 12 months, insiders have made 46 transactions in AMG stock — 24 buys (valued at RSU Award) and 3 sells (valued at $6.6M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.

AMG Insider Ownership

Top Holder

DALTON NATHANIEL

206,589 shares

Buys (12 mo)

$0.00 value

Sells (12 mo)

$6.6M value

12-Month Transaction Activity

Buy 52%

Sell 7%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Dalton Nathaniel	Director	206,589	2020-03-05	100%
2	Dyson Andrew	EVP(amg Ltd.), Global Distrib.	18,131	2016-03-03	9%
3	Healey Sean M	Executive Chairman	10,839	2020-03-05	5%
4	Wojcik Thomas M	President and COO	9,546	2026-03-09	5%
5	Horgen Jay C.	Chief Executive Officer	8,544	2026-03-09	4%
6	Jamal Rizwan M	Head of Affiliate Investments	6,432	2024-03-07	3%
7	Cates G. Staley	Director	4,905	2026-04-06	2%
8	Billings David M.	General Counsel and Secretary	4,781	2022-03-08	2%
9	Erickson John R	Head of Affiliate Engagement	4,336	2023-03-07	2%
10	Jeffery Reuben Iii	Director	3,879	2025-01-03	2%
11	Kingston John Iii	Vice Chairman & Gen. Counsel	3,812	2014-01-06	2%
12	Atkinson Tracy A	Director	3,609	2024-03-07	2%
13	Churchill Dwight D.	Director	2,775	2025-08-18	1%
14	Ryan Patrick T	Director	2,239	2020-07-30	1%
15	Byrne Samuel T	Director	2,239	2020-07-30	1%
16	Padiyar Kavita	General Counsel & Corp. Sec.	1,191	2026-03-09	1%
17	Yerburgh Karen	Director	807	2021-01-05	0%
18	Ferguson Niall	Director	488	2020-02-06	0%
19	Palandjian Tracy P.	Director	335	2026-03-09	0%
20	Matos Rodriguez Felix V.	Director	335	2026-03-09	0%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-04-01	Cates G. Staley	Director	Unknown	-	-	-
2026-03-09	Padiyar Kavita	General Counsel & Corp. Sec.	Informative Sell	2,200	$278.24	$612.13K
2026-03-05	Padiyar Kavita	General Counsel & Corp. Sec.	RSU Award	1,191	-	-
2026-03-05	Franqui Annette	Director	RSU Award	335	-	-
2026-03-05	Ritchea Dava	Chief Financial Officer	Tax Withholding of RSU	292	$299.18	$87.36K
2026-03-05	Matos Rodriguez Felix V.	Director	RSU Award	335	-	-
2026-03-06	Wojcik Thomas M	President and COO	Informative Sell	8,000	$286.30	$2.29M
2026-03-05	Wojcik Thomas M	President and COO	Option Exercise (Sell)	7,272	-	-
2026-03-05	Engel Marcy	Director	RSU Award	335	-	-
2026-03-05	Alvingham Karen L.	Director	RSU Award	98	-	-
2026-03-05	Ryan David Christopher	Director	RSU Award	335	-	-
2026-03-05	Palandjian Tracy P.	Director	RSU Award	335	-	-
2026-03-05	Horgen Jay C.	Chief Executive Officer	RSU Award	8,544	-	-
2026-03-05	Starr Loren M	Director	RSU Award	257	-	-
2025-12-23	Horgen Jay C.	Chief Executive Officer	Gift (Given)	4,000	-	-
2025-11-25	Palandjian Tracy P.	Director	Gift (Given)	3,499	-	-
2025-11-07	Alvingham Karen L.	Director	Option Exercise (Sell)	560	$69.63	$38.99K
2025-11-03	Engel Marcy	Director	RSU Award	199	-	-
2025-09-30	Engel Marcy	Director	Unknown	-	-	-
2025-09-09	Wojcik Thomas M	President and COO	Informative Sell	16,000	$231.03	$3.7M
2025-09-08	Wojcik Thomas M	President and COO	Option Exercise (Sell)	169,303	$74.49	$12.61M
2025-09-02	Padiyar Kavita	General Counsel & Corp. Sec.	Option Exercise (Sell)	47,731	$73.81	$3.52M
2025-09-02	Horgen Jay C.	Chief Executive Officer	Option Exercise (Sell)	75,000	$74.49	$5.59M
2025-08-15	Franqui Annette	Director	Option Exercise	664	-	-
2025-08-15	Matos Rodriguez Felix V.	Director	Option Exercise (Sell)	1,102	-	-