Arthur J. Gallagher & Co. (AJG) — Insider Trading Activity

Arthur J. Gallagher & Co. (AJG) has 282 insider transactions on record, including 5 open-market purchases and 33 sales by company executives and directors. The most recent transaction was filed on 2026-05-12 by Rosenthal Norman L. The largest single transaction was a sale of $ 12.85M by Bay Walter D..