NB Bancorp (NASDAQ: NBBK) insider transactions
In the twelve months to 10 November 2026, executives and directors of NB Bancorp reported 1 open-market sale of 2,000 shares ($45,860) and 25 open-market purchases of 38,200 shares ($759,760), by 5 people, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 20 August 2026 | Lapointe Jean-Pierre | SEVP and CFO | Open-market purchase | +200 | $21.80 | 110,531 | Form 4 |
| 20 August 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +2,000 | $21.75 | 379,790 | Form 4 |
| 14 August 2026 | Henkin Kevin | EVP, Chief Credit Officer | Open-market sale | −2,000 | $22.93 | 6,874 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +500 | $19.16 | 375,290 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +133 | $19.17 | 375,423 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +400 | $19.18 | 375,823 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +100 | $19.18 | 375,923 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +767 | $19.18 | 376,690 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +500 | $19.19 | 377,190 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +253 | $19.20 | 377,443 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +100 | $19.21 | 377,543 | Form 4 |
| 15 May 2026 | Campanelli Joseph P | President & CEO | Open-market purchase | +247 | $19.21 | 377,790 | Form 4 |
| 24 April 2026 | Roberts Christine | SEVP and COO | Shares withheld for tax | −3,589 | $19.82 | 71,081 | Form 4 |
| 24 April 2026 | Lynch Christopher R. | Director | Shares withheld for tax | −4,150 | $19.82 | 92,772 | Form 4 |
| 24 April 2026 | Montgomery Kenneth C. | Director | Shares withheld for tax | −5,015 | $19.82 | 80,125 | Form 4 |
| 24 April 2026 | Nolan Joseph R JR | Director | Shares withheld for tax | −4,918 | $19.82 | 82,821 | Form 4 |
| 24 April 2026 | Whalen Mark | Director | Shares withheld for tax | −4,918 | $19.82 | 72,721 | Form 4 |
| 24 April 2026 | Jackson Angela | Director | Shares withheld for tax | −4,918 | $19.82 | 76,337 | Form 4 |
| 24 April 2026 | Darcey William | Director | Shares withheld for tax | −4,918 | $19.82 | 77,721 | Form 4 |
| 24 April 2026 | Campanelli Joseph P | President & CEO | Shares withheld for tax | −24,371 | $19.82 | 372,290 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the NB Bancorp page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.