Transaction Details

Footnotes

Shares held in trusts, for the benefit of the reporting person's children, of which his wife is sole trustee. | Shares held in a revocable trust and an irrevocable trust of which the reporting person's spouse is sole Trustee and as to which he disclaims beneficial ownership | Shares held in trust for the benefit of the reporting person's children, of which he is a trustee. | Each notional stock unit represents a right to receive one share of Gallagher common stock. | The reporting person moved $310,357.10 in assets that he holds in the company's Supplemental Savings and Thrift Plan, a nonqualified deferred compensation plan, into the investment option representing Gallagher common stock, which is a discretionary transaction by the reporting person. | The notional stock units become payable following the reporting person's separation from service with Gallagher. | The notional stock units become payable following the reporting person's separation from service with Gallagher. | One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date. | Each share of phantom stock represents a right to receive one share of Gallagher common stock. | 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. | Closing price of Gallagher common stock on February 28, 2025. | One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date. | One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date. | Grant date of 3/16/2021. | Grant date of 3/12/2020. | One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date. | Grant date of 3/15/2022. | These shares represent awards under the Deferred Cash Participation Plan, a nonqualified deferred compensation plan of the Company, which have been deemed invested in Company common stock at the election of the participant. These awards are payable in a lump sum on the six-month anniversary of the reporting person's separation from service.