Avidia Bancorp, Inc. (AVBC) director purchases 3,000 common shares

Avidia Bancorp, Inc. director GILLES MICHAEL O purchased 3,000 shares of common stock on May 15, 2026, across three transactions at varying prices. These open-market or private purchases increased his direct and indirect holdings in the company to a total of 26,096 direct shares, plus indirect holdings through an IRA, a spouse, and as custodian for a grandchild. The purchases were not made under a Rule 10b5-1 trading plan.