AMG · Affiliated Managers Group Inc. Common Stock
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| Horgen Jay C. Chief Executive Officer | ▼ Sell | Open Market | 204,706 Shares held | 6/8/2026 | View profile |
| Wojcik Thomas M President and COO | ▼ Sell | Open Market | 159,465 Shares held | 3/6/2026 | View profile |
| Padiyar Kavita General Counsel & Corp. Sec. | ▼ Sell | Open Market | 42,672 Shares held | 3/9/2026 | View profile |
| Churchill Dwight D. Director | ▲ Buy | Option Exercise | 29,030 Shares held | 8/15/2025 | View profile |
| Palandjian Tracy P. Director | ▼ Sell | Tax Withholding | 17,527 Shares held | 6/12/2026 | View profile |
| Alvingham Karen L. Director | ▼ Sell | Tax Withholding | 13,043 Shares held | 3/5/2026 | View profile |
| Cates G. Staley Director | ▲ Buy | Open Market | 6,405 Shares held | 5/6/2026 | View profile |
| Matos Rodriguez Felix V. Director | ▼ Sell | Open Market | 4,369 Shares held | 5/8/2026 | View profile |
| Annette Franqui Director | ▲ Buy | Open Market | 1,962 Shares held | 6/1/2026 | View profile |
| STARR LOREN M Director | ▲ Buy | Option Exercise | 1,937 Shares held | 3/5/2026 | View profile |
| Ryan David Christopher Director | ▼ Sell | Open Market | 1,092 Shares held | 5/6/2026 | View profile |
| RITCHEA DAVA Chief Financial Officer | ▼ Sell | Tax Withholding | 309 Shares held | 3/5/2026 | View profile |
Transaction History
| Palandjian Tracy P. | ▲ Buy | Option Exercise | 2,958 | $243K | 6/12/2026 |
| Palandjian Tracy P. | ▼ Sell | Tax Withholding | 685 | $243K | 6/12/2026 |
| Horgen Jay C. | ▲ Buy | Option Exercise | 75,000 | $5.6M | 6/8/2026 |
| Horgen Jay C. | ▼ Sell | Tax Withholding | 39,671 | $13.4M | 6/8/2026 |
| Horgen Jay C. | ▼ Sell | Open Market | 17,500 | $5.9M | 6/8/2026 |
| Annette Franqui | ▲ Buy | Open Market | 750 | $229K | 6/1/2026 |
| Matos Rodriguez Felix V. | ▼ Sell | Open Market | 1,000 | $300K | 5/8/2026 |
| Ryan David Christopher | ▼ Sell | Open Market | 3,402 | $1.0M | 5/6/2026 |
| Cates G. Staley | ▲ Buy | Open Market | 1,500 | $459K | 5/6/2026 |
| Padiyar Kavita | ▼ Sell | Open Market | 2,200 | $612K | 3/9/2026 |
| Wojcik Thomas M | ▼ Sell | Open Market | 8,000 | $2.3M | 3/6/2026 |
| Wojcik Thomas M | ▲ Buy | Option Exercise | 7,272 | $0 | 3/5/2026 |
| Padiyar Kavita | ▲ Buy | Grant | 2,426 | $0 | 3/5/2026 |
| Padiyar Kavita | ▼ Sell | Tax Withholding | 2,282 | $683K | 3/5/2026 |
| Horgen Jay C. | ▲ Buy | Option Exercise | 17,563 | $0 | 3/5/2026 |
| Horgen Jay C. | ▲ Buy | Grant | 27,260 | $0 | 3/5/2026 |
| Horgen Jay C. | ▼ Sell | Tax Withholding | 18,333 | $5.5M | 3/5/2026 |
| RITCHEA DAVA | ▲ Buy | Option Exercise | 601 | $0 | 3/5/2026 |
| RITCHEA DAVA | ▼ Sell | Tax Withholding | 292 | $87K | 3/5/2026 |
| Alvingham Karen L. | ▲ Buy | Option Exercise | 867 | $0 | 3/5/2026 |
| Alvingham Karen L. | ▼ Sell | Tax Withholding | 67 | $20K | 3/5/2026 |
| Ryan David Christopher | ▲ Buy | Option Exercise | 867 | $0 | 3/5/2026 |
| STARR LOREN M | ▲ Buy | Option Exercise | 652 | $0 | 3/5/2026 |
| Matos Rodriguez Felix V. | ▲ Buy | Option Exercise | 867 | $0 | 3/5/2026 |
| Palandjian Tracy P. | ▲ Buy | Option Exercise | 867 | $0 | 3/5/2026 |
| Annette Franqui | ▲ Buy | Option Exercise | 548 | $0 | 3/5/2026 |
| Wojcik Thomas M | ▲ Buy | Grant | 10,619 | $0 | 3/5/2026 |
| Wojcik Thomas M | ▼ Sell | Tax Withholding | 9,136 | $2.7M | 3/5/2026 |
| Padiyar Kavita | ▲ Buy | Option Exercise | 2,288 | $0 | 3/5/2026 |
| Horgen Jay C. | ▼ Sell | Gift | 4,000 | $0 | 12/23/2025 |
| Palandjian Tracy P. | ▼ Sell | Gift | 3,499 | $0 | 11/25/2025 |
| Alvingham Karen L. | ▼ Sell | Tax Withholding | 182 | $47K | 11/7/2025 |
| Alvingham Karen L. | ▲ Buy | Option Exercise | 560 | $39K | 11/7/2025 |
| Wojcik Thomas M | ▼ Sell | Open Market | 16,000 | $3.7M | 9/9/2025 |
| Wojcik Thomas M | ▼ Sell | Tax Withholding | 114,008 | $26.4M | 9/8/2025 |
| Wojcik Thomas M | ▲ Buy | Option Exercise | 169,303 | $12.6M | 9/8/2025 |
| Horgen Jay C. | ▲ Buy | Option Exercise | 75,000 | $5.6M | 9/2/2025 |
| Horgen Jay C. | ▼ Sell | Tax Withholding | 44,935 | $10.3M | 9/2/2025 |
| Padiyar Kavita | ▲ Buy | Option Exercise | 47,731 | $3.5M | 9/2/2025 |
| Padiyar Kavita | ▼ Sell | Tax Withholding | 30,991 | $7.1M | 9/2/2025 |
| Churchill Dwight D. | ▲ Buy | Option Exercise | 1,398 | $0 | 8/15/2025 |
| Ryan David Christopher | ▲ Buy | Option Exercise | 1,092 | $0 | 8/15/2025 |
| STARR LOREN M | ▲ Buy | Option Exercise | 544 | $0 | 8/15/2025 |
| Alvingham Karen L. | ▲ Buy | Option Exercise | 1,092 | $0 | 8/15/2025 |
| Alvingham Karen L. | ▼ Sell | Tax Withholding | 84 | $18K | 8/15/2025 |
| Annette Franqui | ▲ Buy | Option Exercise | 664 | $0 | 8/15/2025 |
| Matos Rodriguez Felix V. | ▲ Buy | Option Exercise | 1,102 | $0 | 8/15/2025 |
| Palandjian Tracy P. | ▲ Buy | Option Exercise | 1,117 | $0 | 8/15/2025 |
| Horgen Jay C. | ▲ Buy | Option Exercise | 75,000 | $5.6M | 8/12/2025 |
| Horgen Jay C. | ▼ Sell | Tax Withholding | 45,607 | $10.0M | 8/12/2025 |