Kenneth C. Montgomery - 12 Sep 2025 Form 4 Insider Report for NB Bancorp, Inc. (NBBK)

Role
Director
Signature
/s/ Steven Lanter, pursuant to power of attorney
Issuer symbol
NBBK
Transactions as of
12 Sep 2025
Transactions value $
$92,200
Form type
4
Filing time
15 Sep 2025, 14:47:22 UTC
Previous filing
28 Apr 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Montgomery Kenneth C. Director 1063 GREAT PLAIN AVE, NEEDHAM /s/ Steven Lanter, pursuant to power of attorney 15 Sep 2025 0002037513

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NBBK Common Stock Purchase $92.2K +5K +6.64% $18.44 80.3K 12 Sep 2025 Direct F1
* 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.