AMG
AFFILIATED MANAGERS GROUP, INC.
NYSE · Financial Services · Asset Management · US
$385.10
+0.35%0
Insider buys (3m)
0
Insider sells (3m)
$0.00
Net value (3m)
+5.2%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 25, 2026 | Matos Rodriguez Felix V. · director | M-Exempt | 848 | $0.00 |
| Aug 18, 2026 | STARR LOREN M · director | M-Exempt | 716 | $0.00 |
| Aug 18, 2026 | Palandjian Tracy P. · director | M-Exempt | 848 | $0.00 |
| Aug 18, 2026 | Matos Rodriguez Felix V. · director | M-Exempt | 654 | $0.00 |
| Aug 18, 2026 | FRANQUI ANNETTE · director | M-Exempt | 477 | $0.00 |
| Aug 3, 2026 | STARR LOREN M · director | A-Award | 411 | $0.00 |
| Aug 3, 2026 | Engel Marcy · director | A-Award | 274 | $0.00 |
| Aug 3, 2026 | Cates G. Staley · director | A-Award | 274 | $0.00 |
| Aug 3, 2026 | FRANQUI ANNETTE · director | A-Award | 274 | $0.00 |
| Aug 3, 2026 | Palandjian Tracy P. · director | A-Award | 274 | $0.00 |
| Aug 3, 2026 | STARR LOREN M · director | A-Award | 210 | $0.00 |
| Aug 3, 2026 | Matos Rodriguez Felix V. · director | A-Award | 274 | $0.00 |
| Jun 15, 2026 | Palandjian Tracy P. · director | F-InKind | 685 | $355 |
| Jun 15, 2026 | Palandjian Tracy P. · director | M-Exempt | 2,958 | $82 |
| Jun 8, 2026 | Horgen Jay C. · director, officer: President and CEO | Sale | 17,500 | $338 |
| Jun 8, 2026 | Horgen Jay C. · director, officer: President and CEO | M-Exempt | 75,000 | $74 |
| Jun 8, 2026 | Horgen Jay C. · director, officer: President and CEO | F-InKind | 39,671 | $337 |
| May 8, 2026 | Ryan David Christopher · director | Sale | 3,402 | $305 |
| May 8, 2026 | Matos Rodriguez Felix V. · director | Sale | 1,000 | $300 |
| May 6, 2026 | Cates G. Staley · director | Purchase | 1,500 | $306 |
| May 5, 2026 | Cates G. Staley · director | A-Award | 172 | $0.00 |
| Mar 9, 2026 | Alvingham Karen L. · director | A-Award | 98 | $0.00 |
| Mar 9, 2026 | Padiyar Kavita · officer: General Counsel & Corp. Sec. | F-InKind | 2,282 | $299 |
| Mar 9, 2026 | Wojcik Thomas M · officer: President and COO | M-Exempt | 7,272 | $0.00 |
| Mar 9, 2026 | FRANQUI ANNETTE · director | M-Exempt | 548 | $0.00 |
| Mar 9, 2026 | Horgen Jay C. · director, officer: Chief Executive Officer | M-Exempt | 17,563 | $0.00 |
| Mar 9, 2026 | RITCHEA DAVA · officer: Chief Financial Officer | M-Exempt | 601 | $0.00 |
| Mar 9, 2026 | Matos Rodriguez Felix V. · director | A-Award | 335 | $0.00 |
| Mar 9, 2026 | FRANQUI ANNETTE · director | A-Award | 335 | $0.00 |
| Mar 9, 2026 | Padiyar Kavita · officer: General Counsel & Corp. Sec. | Sale | 2,200 | $278 |
Institutional positioning
13F filings over the trailing two quarters
New 169Increased 364Reduced 369Sold out 58
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 2,867,665 | May 13, 2026 |
| BlackRock, Inc. | Reduced | 2,772,736 | Aug 7, 2026 |
| MORGAN STANLEY | Reduced | 1,732,512 | May 15, 2026 |
| MORGAN STANLEY | Reduced | 1,487,219 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1,391,836 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 1,359,793 | May 8, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1,174,746 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 1,151,085 | Aug 13, 2026 |
| ARIEL INVESTMENTS, LLC | Reduced | 1,064,030 | May 14, 2026 |
| Boston Partners | Increased | 1,001,967 | Aug 4, 2026 |
| ARIEL INVESTMENTS, LLC | Reduced | 999,676 | Aug 14, 2026 |
| BOSTON PARTNERS | Reduced | 971,247 | May 11, 2026 |
| STATE STREET CORP | Reduced | 926,733 | May 15, 2026 |
| STATE STREET CORP | Reduced | 883,323 | Sep 22, 2026 |
| MILLENNIUM MANAGEMENT LLC | Increased | 875,116 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 25, 2026