StockCIK 1979330
NB Bancorp, Inc. (NBBK): Insider Trades and Fund Holdings
In the past 12 months, NB Bancorp, Inc. insiders reported 2 open-market purchases worth $48K and 1 sale worth $46K; 0 of the sales were reported as made under a 10b5-1 trading plan.
2Insider buys, 12 months
$48KBought by insiders, 12 months
$46KSold by insiders, 12 months
1Tracked funds holding
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Aug 21, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Aug 21 | Joseph P. CampanelliCEO | ▲ BUY | $44K |
| Aug 21 | Jean-Pierre LapointeCFO | ▲ BUY | $4K |
| Aug 18 | Kevin HenkinEVP | ▼ SELL | $46K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Joseph P. Campanelli | CEO | 1 | $44K | 0 | $0 |
| Jean-Pierre Lapointe | CFO | 1 | $4K | 0 | $0 |
| Kevin Henkin | EVP | 0 | $0 | 1 | $46K |
Tracked funds that report NBBK
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 131,440 | $2.78M | ▼ −50.2% |
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →