Form 4 for AMG AFFILIATED MANAGERS GROUP, INC.
Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-05 · accession 0001004434-26-000035 · 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 | Wojcik Thomas M | Pres, COO | M - OptEx | $0.00 | +7,272 | 166.0K | +5% | $0 |
| D | 2026-03-09 | 2026-03-05 | AMG | Wojcik Thomas M | Pres, COO | A - Grant | $0.00 | +10.6K | 176.6K | +6% | $0 |
| D | 2026-03-09 | 2026-03-05 | AMG | Wojcik Thomas M | Pres, COO | F - Tax | $299.18 | -9,136 | 167.5K | -5% | -$2.73M |
| D | 2026-03-09 | 2026-03-06 | AMG | Wojcik Thomas M | Pres, COO | S - Sale+OE | $286.30 | -8,000 | 159.5K | -5% | -$2.29M |
| D | 2026-03-09 | 2026-03-05 | AMG | Wojcik Thomas M | Pres, COO | M - OptEx | $0.00 | -7,272 | 9,546 | -43% | $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 | 7,272 | $0.00 | 165,982 | D | — | — | (F1) Reflects the vesting of previously reported awards. As previously disclosed, all of the reporting person's then-outstanding unvested equity awards were cancelled and terminated on March 6, 2026 in connection with the reporting person's termination of employment on such date. |
| 2 | Common | Common Stock | 2026-03-05 | A | A | 10,619 | $0.00 | 176,601 | 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 | F | D | 9,136 | $299.18 | 167,465 | 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. |
| 4 | Common | Common Stock | 2026-03-06 | S | D | 8,000 | $286.30 | 159,465 | D | — | — | (F4) The sale reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $285.89 to $286.69. Specific transaction details will be provided to the SEC upon request. |
| 5 | Derivative | Stock Units | 2026-03-05 | M | D | 7,272 | $0.00 | 9,546 | D | — · — to — | 7,272 Common Stock | (F1) Reflects the vesting of previously reported awards. As previously disclosed, all of the reporting person's then-outstanding unvested equity awards were cancelled and terminated on March 6, 2026 in connection with the reporting person's termination of employment on such date. |