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
Net transactions value
+$92,200
Form type
4
Filing time
15 Sep 2025, 14:47:22 UTC
Previous filing
28 Apr 2025
Next filing
06 Jan 2026
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 $92,200 +5,000 +6.6% $18.44 80,337 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.