Mead Christopher E 4

4 · Arthur J. Gallagher & Co. · Filed Mar 17, 2026

AI-generated summary of this filing

Updated Mar 18, 2026

Arthur J. Gallagher (AJG) VP Christopher Mead Exercises Options, Sells Shares

What Happened

Christopher E. Mead, Vice President of Arthur J. Gallagher & Co., had 5,258 performance-based units vest on March 15, 2026 and converted/received 5,258 shares (acquired at $0 as these were awards).
To cover the tax liability from the vesting, 2,019 shares were withheld/disposed on 2026-03-15 for $419,811 and another 432 shares were withheld/disposed on 2026-03-16 for $89,826 — total tax withholding = $509,637.
Transaction codes: A = award/grant (vesting), M = exercise/conversion of derivative into shares, F = shares disposed to satisfy tax obligations. This was a vesting/tax-withholding event, not an open-market purchase or voluntary sale.

Key Details

Transaction dates: March 15, 2026 (vesting/conversion and initial withholding) and March 16, 2026 (additional tax withholding).
Prices shown: shares acquired at $0 (award conversion); withheld shares valued at $207.93 each for withholding calculations.
Withheld/disposed shares: 2,451 total (2,019 + 432) to satisfy taxes; total withholding value ≈ $509,637.
Shares owned after transaction: not specified in the provided filing details.
Relevant footnotes: F1 (performance share units awarded 3/15/2023 earned and vested 3/15/2026), F2 (shares withheld to cover tax obligations related to vesting). No late filing indicated.

Context

This was a vesting and conversion of performance units, followed by a standard “sell/withhold to cover taxes” action — effectively a cashless-withholding, not an open-market sale for investment purposes.
Such transactions are routine when equity awards vest; they reflect compensation realization and tax withholding rather than a deliberate buy or sell signal by the insider.

Form 4

Period: 2026-03-15

VICE PRESIDENT

Transactions

Holdings

Common Stock
(indirect: By 401(k))
491.098
Phantom Stock
[F3][F4]
→ Common Stock (21,803.927 underlying)
21,803.927
Non-qualified Stock Option
[F5]
Exercise: $228.20Exp: 2033-03-01→ Common Stock (12,344 underlying)
12,344
Non-qualified Stock Option
[F6]
Exercise: $127.90Exp: 2028-03-16→ Common Stock (11,725 underlying)
11,725
Non-qualified Stock Option
[F6]
Exercise: $86.17Exp: 2027-03-12→ Common Stock (11,090 underlying)
11,090
Non-qualified Stock Option
[F6]
Exercise: $158.56Exp: 2029-03-15→ Common Stock (8,420 underlying)
8,420
Non-qualified Stock Option
[F7][F6]
Exercise: $337.74Exp: 2032-03-01→ Common Stock (8,264 underlying)
8,264
Non-qualified Stock Option
[F8]
Exercise: $243.54Exp: 2031-03-01→ Common Stock (7,368 underlying)
7,368
Non-qualified Stock Option
[F9]
Exercise: $177.09Exp: 2030-03-15→ Common Stock (7,009 underlying)
7,009
Notional Stock Units
[F10][F11]
→ Common Stock (1,982.831 underlying)
1,982.831

Footnotes (11)

[F1]Performance share units (awarded on March 15, 2023) earned and vested as of March 15, 2026.
[F10]Each notional stock unit represents a right to receive one share of Gallagher common stock.
[F11]The notional stock units become payable following the reporting person's separation from service with Gallagher.
[F2]Shares withheld to cover applicable tax obligations relating to the vesting of restricted stock units.
[F3]Each share of phantom stock represents a right to receive one share of Gallagher common stock.
[F4]These shares represent awards under the Age 62 Plan, a nonqualified deferred compensation plan of the Company, which have been deemed invested in Company common stock at the election of the reporting person. Participants vest in these awards when they attain age 62, or after a one-year period for participants who have attained age 61.
[F5]One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
[F6]One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
[F7]Closing price of Gallagher common stock on February 28, 2025.
[F8]One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
[F9]One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

Signature

/s/ Monica Norzagaray, by power of attorney|2026-03-17

1 file