Form 4 Filing for Avidia Bancorp, Inc.

This Form 4 filing reports a transaction by James N. Ball, a director at Avidia Bancorp, Inc. (AVBC). On April 27, 2026, Mr. Ball acquired 5,000 shares of common stock at a price of $20.60 per share, for a total value of $103,000. This transaction was made indirectly through an IRA. Following this acquisition, Mr. Ball now owns 50,000 shares of Avidia Bancorp, Inc. common stock. The filing was signed on April 29, 2026.