NBBK NB Bancorp, Inc.

NASDAQ
$22.79

NB Bancorp, Inc. (NBBK) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

Insider signal Bullish Insiders bought more than they sold over this window — uncommon at any size.
Cluster activity 2 buyers in the last 30 days 2 buyers in the last 90 days 1 seller in the last 90 days
Insiders buying
5
29 transactions
Insiders selling
1
1 transaction
Purchases
$1.0M
52,888 shares
Sales
$45.9K
2,000 shares
Net activity
$994.7K
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $45.9K 1 transaction · 2,000 shares

Largest single sale: $45.9K.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: August 20, 2026 , by CAMPANELLI JOSEPH P .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
CAMPANELLI JOSEPH P President & CEO Buy 2,000 $21.75 $43.5K 379,790
Lapointe Jean-Pierre SEVP and CFO Buy 200 $21.80 $4.4K 110,531
Henkin Kevin EVP, Chief Credit Officer Sell 2,000 $22.93 $45.9K 6,874 −22.5% of holding
CAMPANELLI JOSEPH P 9 fills President & CEO Buy 3,000 $19.18 $57.5K 377,790
Pascucci Hope 2 fills Director Buy 20,000 $19.46 $389.3K 142,402
CAMPANELLI JOSEPH P 7 fills President & CEO Buy 2,500 $19.45 $48.6K 374,790
CAMPANELLI JOSEPH P President & CEO Buy 2,500 $20.16 $50.4K 396,661
Lapointe Jean-Pierre SEVP and CFO Buy 1,000 $20.42 $20.4K 110,331
CAMPANELLI JOSEPH P 4 fills President & CEO Buy 10,000 $20.77 $207.7K 47,000
EVANGELISTA PAUL A EVP, Dir Spec. Bank. Ctr. Buy 2,000 $20.87 $41.7K 26,566
Pascucci Hope Director Buy 4,688 $18.07 $84.7K 120,000
Montgomery Kenneth C. Director Buy 5,000 $18.44 $92.2K 80,337

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.