Arthur J. Gallagher (AJG) VP Mark H. Bloom Exercises Awards, Withholds Shares

What Happened
Mark H. Bloom, a Vice President at Arthur J. Gallagher & Co. (AJG), converted 1,280.485 notional/phantom stock units into common shares on 2026-08-16 (recorded as derivative exercise/conversion). To satisfy applicable income and employment taxes on the distribution, 606.814 of those shares were withheld/disposed at a reported value of $251.21 per share, generating $152,438 in tax withholding. The conversion itself shows no cash exercise price.

Key Details

• Transaction date: August 16, 2026; Form 4 filed August 18, 2026 (timely filing).
• Conversion/exercise: 1,280.485 shares recorded as derivative exercise/conversion (code M) at $0.00.
• Tax withholding/disposition: 606.814 shares withheld/disposed (code F) at $251.21/share, total $152,438.
• Shares owned after transaction: not disclosed in the filing.
• Relevant footnotes: These units are notional/phantom stock units (each unit = right to one common share) and relate to the Age 62 nonqualified deferred compensation plan; certain notional units become payable in July 2026 and following separation from service.
• Remark on purpose: The report states the transactions solely reflect withholding of shares to cover income/employment taxes on an Age 62 Plan distribution.
• Transaction codes: M = exercise/conversion of derivative; F = payment of exercise price or tax liability (share withholding).

Context
This was not an open-market sale or purchase: it was a conversion/distribution of deferred/notional/phantom stock and a standard tax-withholding event (cashless/share-withholding). Such withholding transactions are routine tax-related actions and do not necessarily signal an intent to buy or sell additional AJG stock.