InsiderTrades

Form 4 for AMG AFFILIATED MANAGERS GROUP, INC.

Accepted 2025-08-18 00:00:00 ET · period of report 2025-08-15 · accession 0001127602-25-020599 · 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 2025-08-18 2025-08-15 AMG FRANQUI ANNETTE Dir M - OptEx $0.00 +664 664 New $0
D 2025-08-18 2025-08-15 AMG FRANQUI ANNETTE Dir M - OptEx $0.00 -664 1,025 -39% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-08-15 M A 664 $0.00 664 D — — (F1) Reflects the vesting of a previously reported award. Award vested in 2025.
2 Derivative Stock Units 2025-08-15 M D 664 $0.00 1,025 D — · — to — 664 Common Stock (F1) Reflects the vesting of a previously reported award. Award vested in 2025.