Kevin Henkin - 14 Aug 2026 Form 4 Insider Report for NB Bancorp, Inc. (NBBK)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
18 Aug 2026, 16:05:15 UTC
Prior SEC filing
27 Feb 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Kate Henry, by Power of Attorney

Key filing fact

Kevin Henkin filed Form 4 for NB Bancorp, Inc. (NBBK) on 18 Aug 2026.

Key facts

  • This page summarizes Kevin Henkin's Form 4 filing for NB Bancorp, Inc. (NBBK).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 18 Aug 2026, 16:05.

Change

  • Previous filing in this sequence was filed on 27 Feb 2026.
  • Current net transaction value: -$45,860.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002003565 Primary reporting owner

Henkin Kevin

Relationship
EVP, Chief Credit Officer
Address
1063 GREAT PLAIN AVE, NEEDHAM
Signature
/s/ Kate Henry, by Power of Attorney
Signature date
18 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NBBK transaction

Common Stock

Sale

Transaction value
$45,860
Shares
-2,000
Change %
-23%
Price
$22.93
Shares after
6,874
Date
14 Aug 2026
Ownership
Direct
Footnotes
F1
NBBK holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
5,342
Date
14 Aug 2026
Ownership
By 401(k)
Footnotes
F2
NBBK holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
2,964
Date
14 Aug 2026
Ownership
By ESOP
Footnotes
F2
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Shares of restricted stock vest at a rate of 33 1/3% per year commencing on February 25, 2027.

Footnote F2

Reflects transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934, as amended.

SEC remarks

Exhibit List: Exhibit 24 - Power of Attorney

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