AJG ▲ +0.9% - Arthur J. Gallagher & Co. $AJG - Arthur J. Gallagher & Co. to Host Regularly Scheduled Quarterly Investor Meeting with Management Arthur J. Gallagher & Co. shares rose 0.9% today following an announcement that the company will host its regularly scheduled quarterly investor meeting with management. The modest gain likely reflects investor confidence ahead of the opportunity to hear directly from company leadership on recent performance and outlook. 03-SEP-2026 04:15 PM ET