Joseph P. Campanelli - 25 Feb 2026 Form 4 Insider Report for NB Bancorp, Inc. (NBBK)

Role
President & CEO, Director, Chairman of the Board
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, 11:20:42 UTC
Previous filing
10 Jun 2025
Next filing
09 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
CAMPANELLI JOSEPH P President & CEO, Director, Chairman of the Board 1063 GREAT PLAIN AVE, NEEDHAM /s/ Steven Lanter, pursuant to power of attorney 27 Feb 2026 0001222378

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NBBK Common Stock Award $0 +63,015 +19% $0.000000 394,161 25 Feb 2026 Direct F1, F2
holding NBBK Common Stock 45,000 25 Feb 2026 By IRA
holding NBBK Common Stock 49,597 25 Feb 2026 By 401(k) F3
holding NBBK Common Stock 3,677 25 Feb 2026 By ESOP F3
* 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.
F3 Reflects transactions not required to be reported pursuant to Section 16 of the Securities Act of 1934, as amended.