| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Palandjian Tracy P. | Director | C/O AFFILIATED MANAGERS GROUP, INC., 777 SOUTH FLAGLER DRIVE, WEST PALM BEACH | /s/ Kavita Padiyar, Attorney-in-Fact | 13 May 2025 | 0001543889 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMG | Common Stock | Options Exercise | $216,494 | +1,353 | +8.9% | $160.01 | 16,512 | 12 May 2025 | Direct | |
| transaction | AMG | Common Stock | Options Exercise | $196,606 | +1,787 | +11% | $110.02 | 18,299 | 12 May 2025 | Direct | |
| transaction | AMG | Common Stock | Options Exercise | $118,108 | +1,361 | +7.4% | $86.78 | 19,660 | 12 May 2025 | Direct | |
| transaction | AMG | Common Stock | Tax liability | $531,453 | -2,891 | -15% | $183.83 | 16,769 | 12 May 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMG | Director Stock Option (Right to Buy) | Options Exercise | $0 | -1,353 | -100% | $0.000000 | 0 | 12 May 2025 | Common Stock | 1,353 | $160.01 | Direct | |
| transaction | AMG | Director Stock Option (Right to Buy) | Options Exercise | $0 | -1,787 | -100% | $0.000000 | 0 | 12 May 2025 | Common Stock | 1,787 | $110.02 | Direct | |
| transaction | AMG | Director Stock Option (Right to Buy) | Options Exercise | $0 | -1,361 | -100% | $0.000000 | 0 | 12 May 2025 | Common Stock | 1,361 | $86.78 | Direct |