Form 4 for AMG AFFILIATED MANAGERS GROUP, INC.
Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-05 · accession 0001004434-26-000033 · 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 | 2026-03-09 | AMG | Padiyar Kavita | GC, Corp. Sec | S - Sale+OE | $278.24 | -2,200 | 42.7K | -5% | -$612.1K |
| D | 2026-03-09 | 2026-03-05 | AMG | Padiyar Kavita | GC, Corp. Sec | A - Grant | $0.00 | +2,426 | 47.2K | +5% | $0 |
| D | 2026-03-09 | 2026-03-05 | AMG | Padiyar Kavita | GC, Corp. Sec | M - OptEx | $0.00 | +2,288 | 44.7K | +5% | $0 |
| D | 2026-03-09 | 2026-03-05 | AMG | Padiyar Kavita | GC, Corp. Sec | F - Tax | $299.18 | -2,282 | 44.9K | -5% | -$682.7K |
| D | 2026-03-09 | 2026-03-05 | AMG | Padiyar Kavita | GC, Corp. Sec | A - Grant | $0.00 | +1,191 | 1,191 | New | $0 |
| D | 2026-03-09 | 2026-03-05 | AMG | Padiyar Kavita | GC, Corp. Sec | M - OptEx | $0.00 | -2,288 | 2,670 | -46% | $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 | 2026-03-09 | S | D | 2,200 | $278.24 | 42,672 | D | — | — | (F4) The sale reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $278.00 to $278.51. Specific transaction details will be provided to the SEC upon request. |
| 2 | Common | Common Stock | 2026-03-05 | A | A | 2,426 | $0.00 | 47,154 | D | — | — | (F2) Award granted in March 2023, which settled following the achievement of performance conditions previously described in the Company's annual meeting proxy statements. |
| 3 | Common | Common Stock | 2026-03-05 | M | A | 2,288 | $0.00 | 44,728 | D | — | — | (F1) Reflects the vesting of previously reported awards. Awards vest 2023-2029. |
| 4 | Common | Common Stock | 2026-03-05 | F | D | 2,282 | $299.18 | 44,872 | D | — | — | (F3) Reflects the automatic surrender of shares of common stock to the Company to satisfy tax withholding obligations related to the vesting of the awards described above. |
| 5 | Derivative | Stock Units | 2026-03-05 | A | A | 1,191 | $0.00 | 1,191 | D | — · — to — | 1,191 Common Stock | (F5) 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. |
| 6 | Derivative | Stock Units | 2026-03-05 | M | D | 2,288 | $0.00 | 2,670 | D | — · — to — | 2,288 Common Stock | (F1) Reflects the vesting of previously reported awards. Awards vest 2023-2029. |