Key facts
- This page summarizes James J. White's Form 4 filing for NB Bancorp, Inc. (NBBK).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 27 Feb 2026, 11:17.
James J. White - 25 Feb 2026 Form 4 Insider Report for NB Bancorp, Inc. (NBBK)
- Reporting relationship
- EVP, Chief Administrative Offc
- Issuer ticker
- NBBK
- Reported as of
- 25 Feb 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 27 Feb 2026, 11:17:23 UTC
- Prior SEC filing
- 27 Dec 2023
- Source filing
- View source filing
- Reporting owner signature
- /s/ Steven Lanter, pursuant to power of attorney
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
James J. White filed Form 4 for NB Bancorp, Inc. (NBBK) on 27 Feb 2026.
Change
- Previous filing in this sequence was filed on 27 Dec 2023.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002004488
Primary reporting owner
White James J.
- Relationship
- EVP, Chief Administrative Offc
- Address
- 1063 GREAT PLAIN AVE, NEEDHAM
- Signature
- /s/ Steven Lanter, pursuant to power of attorney
- Signature date
- 27 Feb 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
NBBK
transaction
Common Stock
Award
- Transaction value
- $0
- Shares
- +6,874
- Change %
- +69%
- Price
- $0.000000
- Shares after
- 16,874
- Date
- 25 Feb 2026
- Ownership
- Direct
- Footnotes
- F1
NBBK
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 10,000
- Date
- 25 Feb 2026
- Ownership
- By IRA
NBBK
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 30,217
- Date
- 25 Feb 2026
- Ownership
- By 401(k)
- Footnotes
- F2
NBBK
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 3,382
- Date
- 25 Feb 2026
- Ownership
- By ESOP
- Footnotes
- F2
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
Shares of restricted stock vest at a rate of 33 1/3% per year commencing on February 25, 2027.
Footnote F2
Reflects transactions not required to be reported pursuant to Section 16 of the Securities Act of 1934, as amended.