Insider Transaction Report for Avidia Bancorp, Inc.

This SEC filing details a transaction by Candela Vanessa, a director at Avidia Bancorp, Inc. On September 16, 2026, Vanessa acquired 20,076 shares of Common Stock and 50,190 Stock Options. These acquisitions were granted with no cost. The restricted stock vests at 20% annually starting September 16, 2027, as noted by footnote F1. Similarly, the stock options vest at 20% annually beginning September 16, 2027, as per footnote F2. Following these transactions, Vanessa holds 20,176 shares of Common Stock and 50,190 Stock Options. The filing was signed on September 17, 2026, by Victor L. Cangelosi under a power of attorney.