InsiderTrades

Form 4 for AJG Arthur J. Gallagher & Co.

Accepted 2026-03-17 00:00:00 ET · period of report 2026-03-15 · accession 0000354190-26-000081 · 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
M 2026-03-17 2026-03-15 AJG GALLAGHER J PATRICK JR CEO, Dir M - OptEx $0.00 0 140.2K New $0
2026-03-17 2026-03-15 AJG GALLAGHER J PATRICK JR CEO, Dir A - Grant $0.00 +45.0K 45.0K New $0
2026-03-17 2026-03-15 AJG GALLAGHER J PATRICK JR CEO, Dir F - Tax $207.93 -19.2K 121.0K -14% -$3.99M

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock (restricted) 2026-03-15 M D 45,048 $0.00 0 D — —
2 Common Common Stock (restricted) 2026-03-15 A A 45,048 $0.00 45,048 D — — (F1) Performance share units (awarded on March 15, 2023) earned and vested as of March 15, 2026.
3 Common Common Stock 2026-03-15 F D 19,168 $207.93 120,984.93 D — —
4 Common Common Stock 2026-03-15 M A 45,048 $0.00 140,152.93 D — —