InsiderTrades

Form 4 for AMG AFFILIATED MANAGERS GROUP, INC.

Accepted 2025-03-07 00:00:00 ET · period of report 2025-03-05 · accession 0001127602-25-008735 · 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 2025-03-07 2025-03-05 AMG Ryan David Christopher Dir M - OptEx $0.00 +956 2,535 +61% $0
D 2025-03-07 2025-03-05 AMG Ryan David Christopher Dir M - OptEx $0.00 -956 5,024 -16% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-03-05 M A 956 $0.00 2,535 D — — (F1) Reflects the vesting of previously reported awards. Awards vest 2023-2027.
2 Derivative Stock Units 2025-03-05 M D 956 $0.00 5,024 D — · — to — 956 Common Stock (F2) Inclusive of previously reported deferred stock units. (F1) Reflects the vesting of previously reported awards. Awards vest 2023-2027.