InsiderTrades

Form 4 for AJG Arthur J. Gallagher & Co.

Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-05 · accession 0000354190-26-000062 · 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 2026-03-09 2026-03-05 AJG Pesch Michael Robert VP F - Tax $228.84 -3,733 44.9K -8% -$854.3K
D 2026-03-09 2026-03-05 AJG Pesch Michael Robert VP M - OptEx $79.59 +6,750 48.6K +16% +$537.2K
D 2026-03-09 2026-03-05 AJG Pesch Michael Robert VP M - OptEx $0.00 -6,750 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-03-05 F D 3,733 $228.84 44,865.66 D — —
2 Common Common Stock 2026-03-05 M A 6,750 $79.59 48,598.66 D — —
3 Derivative Non-qualified Stock Option 2026-03-05 M D 6,750 $0.00 0 D $79.59 · — to 2026-03-14 6,750 Common Stock (F3) Grant date of 3/14/2019. (F4) One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.