NB Bancorp (NBBK) EVP awarded 6,874 restricted shares vesting from 2027

Rhea-AI Filing Summary

Henkin Kevin reported acquisition or exercise transactions in this Form 4 filing.

NB Bancorp, Inc. executive vice president and chief credit officer Kevin Henkin received a grant of 6,874 shares of common stock on February 25, 2026 as a restricted stock award at no cost. These restricted shares vest in equal installments of 33 1/3% per year starting on February 25, 2027.

Insights

Equity Compensation Analyst

Routine stock grant to NB Bancorp executive, vesting over three years.

EVP and chief credit officer Kevin Henkin was granted 6,874 shares of NB Bancorp common stock as a restricted stock award at a price of $0.00 per share. This is characterized as a grant, award, or other acquisition rather than an open-market purchase.

The restricted stock vests in three equal annual installments of 33 1/3% beginning on February 25, 2027. Additional indirect holdings are reported through a 401(k) plan and an ESOP, reflecting retirement and employee ownership positions rather than new market transactions.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Henkin Kevin

(Last) (First) (Middle)

1063 GREAT PLAIN AVE

(Street)

NEEDHAM MA 02492

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NB Bancorp, Inc. [ NBBK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Credit Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/25/2026		A		6,874(1)	A	$0	8,874	D
Common Stock								5,342(2)	I	By 401(k)
Common Stock								2,964(2)	I	By ESOP

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

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

	/s/ Steven Lanter, pursuant to power of attorney	02/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did NB Bancorp (NBBK) executive Kevin Henkin report on this Form 4?

Kevin Henkin reported receiving a grant of 6,874 shares of NB Bancorp common stock. The award is a restricted stock grant at no cash cost per share, increasing his directly held shares and aligning compensation with future company performance.

How many NB Bancorp shares were granted to Kevin Henkin in this filing?

The filing shows a grant of 6,874 shares of NB Bancorp common stock. These shares were acquired as a restricted stock award, not bought in the open market, and represent additional direct equity compensation for the executive vice president and chief credit officer.

What are the vesting terms of Kevin Henkin’s restricted stock in NBBK?

The restricted stock vests at a rate of 33 1/3% per year, starting February 25, 2027. This means the 6,874-share grant becomes fully vested over three years, encouraging longer-term retention and performance alignment for the executive.

Was there a purchase price for the NB Bancorp shares granted to Kevin Henkin?

No cash purchase price was paid for the 6,874-share grant; the transaction price per share is reported as 0.0000. This indicates a compensatory restricted stock award rather than a market purchase funded by the executive.

What indirect NB Bancorp holdings does Kevin Henkin report on this Form 4?

The filing reports indirect holdings of 5,342 shares through a 401(k) plan and 2,964 shares through an ESOP. These positions represent retirement and employee stock ownership interests, separate from his directly held and newly granted restricted shares.

Does this NB Bancorp Form 4 show any share sales by Kevin Henkin?

The Form 4 does not report any share sales by Kevin Henkin. It shows one acquisition via a restricted stock grant and two indirect holdings entries, with no transactions categorized as sales or dispositions in the transaction summary.