InsiderTrades

Form 4 for AJG Arthur J. Gallagher & Co.

Accepted 2026-08-20 19:12:09 ET · period of report 2026-08-19 · accession 0000354190-26-000195 · 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 2026-08-20 19:12 2026-08-19 AJG Mead Christopher E VP M - OptEx $86.17 +3,500 25.7K +16% +$301.6K
D 2026-08-20 19:12 2026-08-19 AJG Mead Christopher E VP S - Sale+OE $257.02 -3,500 22.2K -14% -$899.6K
D 2026-08-20 19:12 2026-08-19 AJG Mead Christopher E VP M - OptEx $0.00 -3,500 7,590 -32% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-08-19 M A 3,500 $86.17 25,723.41 D — —
2 Common Common Stock 2026-08-19 S D 3,500 $257.02 22,223.41 D — —
3 Derivative Non-qualified Stock Option 2026-08-19 M D 3,500 $0.00 7,590 D $86.17 · — to 2027-03-12 3,500 Common Stock (F1) One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.