Arthur J. Gallagher (AJG) investor relations material

Voting matters and shareholder proposals

• Nine director nominees are up for election at the 2026 Annual Meeting, with a majority of votes cast required for election.

• Abstentions are not counted as votes cast and have no impact on the election of directors.

• Any incumbent director nominee receiving more "AGAINST" than "FOR" votes is expected to tender a resignation for consideration.

Board of directors and corporate governance

• The Board nominated the Chairman/CEO and eight additional individuals to serve until the next annual meeting or until their earlier resignation, death, or removal.

• Directors aged 78 or older may only be renominated if the Board deems their continued service appropriate; John Coldman, age 78, was determined to stand for reelection due to his expertise.

• Sherry Barrat is retiring and not standing for reelection, reducing the Board to nine members effective at the 2026 Annual Meeting.

Executive summary

• The supplement clarifies the effect of abstentions on director elections, confirming abstentions have no impact.

• No changes to voting standards or proposals beyond the clarification regarding abstentions.