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NB Bancorp, Inc. (NBBK)

NB Bancorp, Inc. (NBBK) Insider Trading

Directors, officers and holders of more than 10% of NBBK report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 96 transactions on file: 24 with code P, 1 with code S and 25 with other codes.

DateInsiderCodeShares
Aug 20, 2026Lapointe Jean-PierreP Purchase200
Aug 20, 2026CAMPANELLI JOSEPH PP Purchase2,000
Aug 14, 2026Henkin KevinS Sale2,000
May 15, 2026CAMPANELLI JOSEPH PP Purchase253
May 15, 2026CAMPANELLI JOSEPH PP Purchase500
May 15, 2026CAMPANELLI JOSEPH PP Purchase767
May 15, 2026CAMPANELLI JOSEPH PP Purchase100
May 15, 2026CAMPANELLI JOSEPH PP Purchase400
May 15, 2026CAMPANELLI JOSEPH PP Purchase500
May 15, 2026CAMPANELLI JOSEPH PP Purchase133
May 15, 2026CAMPANELLI JOSEPH PP Purchase247
May 15, 2026CAMPANELLI JOSEPH PP Purchase100
Apr 24, 2026Whalen MarkF Tax Payment4,918
Apr 24, 2026Pascucci HopeP Purchase10,000
Apr 24, 2026Pascucci HopeP Purchase10,000
Apr 24, 2026CAMPANELLI JOSEPH PF Tax Payment24,371
Apr 24, 2026CAMPANELLI JOSEPH PP Purchase320
Apr 24, 2026CAMPANELLI JOSEPH PP Purchase180
Apr 24, 2026CAMPANELLI JOSEPH PP Purchase500
Apr 24, 2026CAMPANELLI JOSEPH PP Purchase722
Apr 24, 2026CAMPANELLI JOSEPH PP Purchase178
Apr 24, 2026CAMPANELLI JOSEPH PP Purchase100
Apr 24, 2026CAMPANELLI JOSEPH PP Purchase500
Apr 24, 2026Darcey WilliamF Tax Payment4,918
Apr 24, 2026Jackson AngelaF Tax Payment4,918
Apr 24, 2026NOLAN JOSEPH R JRF Tax Payment4,918
Apr 24, 2026Montgomery Kenneth C.F Tax Payment5,015
Apr 24, 2026Lynch Christopher R.F Tax Payment4,150
Apr 24, 2026Roberts ChristineF Tax Payment3,589
Mar 19, 2026CAMPANELLI JOSEPH PP Purchase2,500
Mar 9, 2026Schulman Matthew GA Award6,980
Mar 9, 2026Lapointe Jean-PierreP Purchase1,000
Mar 6, 2026CAMPANELLI JOSEPH PP Purchase3,000
Mar 6, 2026CAMPANELLI JOSEPH PP Purchase2,000
Feb 25, 2026CAMPANELLI JOSEPH PA Award63,015
Feb 25, 2026White James J.A Award6,874
Feb 25, 2026Henkin KevinA Award6,874
Feb 25, 2026Daley James B.A Award6,874
Feb 25, 2026EVANGELISTA PAUL AA Award6,874
Feb 25, 2026Roberts ChristineA Award13,749
Feb 25, 2026Maiona StephanieA Award6,874
Feb 25, 2026Lapointe Jean-PierreA Award13,749
Feb 25, 2026Richardson MatthewA Award13,749
Jan 2, 2026Reilly Joseph BA Award2,402
Jan 2, 2026Whalen MarkA Award2,402
Jan 2, 2026Montgomery Kenneth C.A Award4,803
Jan 2, 2026Jackson AngelaA Award2,402
Jan 2, 2026NOLAN JOSEPH R JRA Award2,402
Jan 2, 2026Raza MuhammadA Award2,402
Jan 2, 2026Pascucci HopeA Award2,402

The full Form 4 history is on the NBBK company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.