InsiderTrades

Form 4 for AMG AFFILIATED MANAGERS GROUP, INC.

Accepted 2025-03-07 00:00:00 ET · period of report 2025-03-05 · accession 0001127602-25-008731 · 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 STARR LOREN M Dir M - OptEx $0.00 +741 741 New $0
D 2025-03-07 2025-03-05 AMG STARR LOREN M Dir M - OptEx $0.00 -741 2,508 -23% $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 741 $0.00 741 D — — (F1) Reflects the vesting of previously reported awards. Awards vest 2025-2028.
2 Derivative Stock Units 2025-03-05 M D 741 $0.00 2,508 D — · — to — 741 Common Stock (F2) Inclusive of previously reported deferred stock units. (F1) Reflects the vesting of previously reported awards. Awards vest 2025-2028.