Form 4 for AMG AFFILIATED MANAGERS GROUP, INC.
Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-05 · accession 0001004434-26-000029 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-03-09 | 2026-03-05 | AMG | RITCHEA DAVA | CFO | M - OptEx | $0.00 | +601 | 601 | New | $0 |
| D | 2026-03-09 | 2026-03-05 | AMG | RITCHEA DAVA | CFO | F - Tax | $299.18 | -292 | 309 | -49% | -$87.4K |
| D | 2026-03-09 | 2026-03-05 | AMG | RITCHEA DAVA | CFO | M - OptEx | $0.00 | -601 | 1,804 | -25% | $0 |
| D | 2026-03-09 | 2026-03-05 | AMG | RITCHEA DAVA | CFO | A - Grant | $0.00 | +1,667 | 1,667 | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-05 | M | A | 601 | $0.00 | 601 | D | — | — | (F1) Reflects the vesting of a previously reported award. Award vests 2026-2029. |
| 2 | Common | Common Stock | 2026-03-05 | F | D | 292 | $299.18 | 309 | D | — | — | (F2) Reflects the automatic surrender of shares of common stock to the Company to satisfy tax withholding obligations related to the vesting of the award described above. |
| 3 | Derivative | Stock Units | 2026-03-05 | M | D | 601 | $0.00 | 1,804 | D | — · — to — | 601 Common Stock | (F1) Reflects the vesting of a previously reported award. Award vests 2026-2029. |
| 4 | Derivative | Stock Units | 2026-03-05 | A | A | 1,667 | $0.00 | 1,667 | D | — · — to — | 1,667 Common Stock | (F3) The award, issued under the Company's 2020 Equity Incentive Plan, vests in four equal installments on each of March 5, 2027, 2028, 2029, and 2030. |