NB Bancorp (NBBK) CFO receives 13,749-share stock award vesting from 2027

Rhea-AI Filing Summary

NB Bancorp, Inc. SEVP and CFO Jean-Pierre Lapointe reported an equity award of 13,749 shares of common stock on this Form 4. The shares were acquired as a grant/award at a stated price of $0.00 per share, increasing his directly held common stock to 109,331 shares after the transaction.

These new shares are restricted stock that vest in three equal installments of 33 1/3% per year starting on February 25, 2027. The filing also shows indirect holdings through a 401(k) plan and an ESOP, with 4,018 and 1,779 shares of common stock, respectively, following the reported date.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Lapointe Jean-Pierre

Role SEVP and CFO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	13,749	$0.00	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 109,331 shares (Direct); Common Stock — 4,018 shares (Indirect, By 401(k))

Footnotes (1)

1. Shares of restricted stock vest at a rate of 33 1/3% per year commencing on February 25, 2027. Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. Reflects transactions not required to be reported pursuant to Section 16 of the Securities Act of 1934, as amended.

Form 4 Insider Transactions: What Each Field Means →

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Lapointe Jean-Pierre

(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)
	SEVP and CFO

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		13,749(1)	A	$0	109,331(2)	D
Common Stock								4,018(3)	I	By 401(k)
Common Stock								1,779(3)	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. Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.

3. 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) insider Jean-Pierre Lapointe report on this Form 4?

Jean-Pierre Lapointe reported receiving an award of 13,749 shares of NB Bancorp common stock. The shares were granted at a stated price of $0.00 per share, increasing his directly held position to 109,331 shares after the transaction.

What type of shares did NBBK’s SEVP and CFO receive in this filing?

The SEVP and CFO received restricted shares of NB Bancorp common stock. The award consists of 13,749 shares that are subject to vesting conditions and do not fully vest immediately, aligning compensation with longer-term service and performance.

How do the 13,749 restricted shares for NBBK’s CFO vest over time?

The 13,749 restricted shares vest in three equal annual installments. The vesting schedule is 33 1/3% per year, beginning on February 25, 2027, meaning full vesting will occur over a three-year period after that start date.

What are Jean-Pierre Lapointe’s direct NB Bancorp share holdings after this award?

After the award, Lapointe directly holds 109,331 shares of NB Bancorp common stock. This figure includes the newly granted restricted shares, reflecting his total direct ownership as of the transaction date reported in the Form 4.

Does the NBBK Form 4 show any indirect holdings for the CFO?

Yes. The filing shows indirect holdings through retirement and employee plans. It lists 4,018 shares of NB Bancorp common stock held via a 401(k) plan and 1,779 shares held through an ESOP, in addition to his direct ownership.

Were any NB Bancorp shares sold by Jean-Pierre Lapointe in this Form 4?

The Form 4 does not report any share sales by Lapointe. It records an acquisition of 13,749 restricted shares as a grant or award, along with updated positions in his direct and indirect holdings, without any noted dispositions.