NB Bancorp (NBBK) CEO Joseph Campanelli Buys 2,000 Shares

What Happened
Joseph P. Campanelli, President & CEO (and Chairman and Director) of NB Bancorp, acquired 2,000 shares in an open-market purchase on August 20, 2026, at $21.75 per share for a total of $43,500. This was a straight purchase (transaction code P), which investors often view as a positive sign since insiders are buying company stock.

Key Details

• Transaction date: 2026-08-20; Price: $21.75 per share; Total value: $43,500.
• Transaction type: Open-market purchase (Code P).
• Shares owned after transaction: Not reported on the Form 4.
• Footnotes:
  • F1: Includes restricted stock vesting at 20% per year beginning April 24, 2026.
  • F2: Restricted stock vesting at 33 1/3% per year commencing February 25, 2027.
• Filing: Form 4 filed 2026-08-21 (filed the day after the transaction).
• Exhibit: Exhibit 24 (Power of Attorney) attached.

Context
This filing reports a direct purchase of common stock, not an option exercise, gift, or sale. Purchases by executives are typically highlighted by retail investors because they represent insiders adding to holdings, but the filing itself does not explain motivation. The footnotes indicate some holdings are restricted stock subject to vesting schedules.