A Form 4 filed with the SEC on September 16, 2026, discloses that Michael Dennis Murphy, Chairman of the Board of Avidia Bancorp, Inc. (NASDAQ:AVBC), purchased 5,000 shares of common stock on September 14, 2026.

Key Highlights

  • Purchase transaction: Michael Dennis Murphy acquired 5,000 shares of Avidia Bancorp common stock on September 14, 2026.
  • Price paid: The shares were acquired at $22.12 each, per the filing.
  • Indirect ownership after transaction: Following the purchase, Murphy holds 6,850 shares indirectly through his spouse.
  • Additional holdings: The filing also reports 49,000 shares held directly, 20,000 shares held indirectly by LLC, and 7,230 shares held indirectly through a spouse's IRA.
  • Role of reporting person: Murphy is identified as a Director and Chairman of the Board of Avidia Bancorp, Inc.

Murphy's Purchase and Full Beneficial Ownership at Avidia Bancorp

According to the Form 4 filed on September 16, 2026, Michael Dennis Murphy purchased 5,000 shares of Avidia Bancorp, Inc. common stock on September 14, 2026, at a price of $22.12 per share. The transaction is coded "P," indicating an open-market purchase. The filing was signed by Victor L. Cangelosi pursuant to a power of attorney on Murphy's behalf.

Following the reported transaction, the filing discloses that Murphy beneficially owns shares across several ownership forms. The 5,000 acquired shares are held indirectly by spouse, bringing that indirect position to 6,850 shares. Separately, the filing reports 49,000 shares owned directly, 20,000 shares held indirectly by an LLC, and 7,230 shares held indirectly through a spouse's IRA. No derivative securities were reported in Table II of the filing.

The filing identifies Murphy's address as 42 Main St, Hudson, Massachusetts 01749, and confirms the form was filed by one reporting person. The issuer is listed as Avidia Bancorp, Inc. with the ticker symbol AVBC. No amendment date is noted, indicating this is an original filing.

What Was Disclosed

The filing reports a single open-market purchase of 5,000 shares of Avidia Bancorp common stock by Chairman Michael Dennis Murphy at $22.12 per share on September 14, 2026, along with his total beneficial ownership across direct and indirect accounts.