Christopher R. Lynch - 10 Nov 2025 Form 4 Insider Report for NB Bancorp, Inc. (NBBK)

Role
Director
Signature
/s/ Steven T. Lanter, pursuant to Power of Attorney
Issuer symbol
NBBK
Transactions as of
10 Nov 2025
Transactions value $
$0
Form type
4
Date filed
12 Nov 2025, 17:42
Previous filing
03 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Lynch Christopher R. Director 1063 GREAT PLAIN AVE, NEEDHAM /s/ Steven T. Lanter, pursuant to Power of Attorney 2025-11-12 0002003622

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NBBK Common Stock Gift $0 -2.73K -2.96% $0.00 89.2K 10 Nov 2025 Direct F1
holding NBBK Common Stock 60K 10 Nov 2025 By IRA
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.