Christine Roberts - 25 Feb 2026 Form 4 Insider Report for NB Bancorp, Inc. (NBBK)

Signature
/s/ Steven Lanter, pursuant to power of attorney
Issuer symbol
NBBK
Transactions as of
25 Feb 2026
Net transactions value
$0
Form type
4
Filing time
27 Feb 2026, 11:10:49 UTC
Previous filing
28 Apr 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Roberts Christine SEVP and COO 1063 GREAT PLAIN AVE, NEEDHAM /s/ Steven Lanter, pursuant to power of attorney 27 Feb 2026 0002052927

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NBBK Common Stock Award $0 +13,749 +23% $0.000000 74,670 25 Feb 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares of restricted stock vest at a rate of 33 1/3% per year commencing on February 25, 2027.
F2 Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.