NB Bancorp (NBBK) director reports 2,402-share restricted stock grant

Rhea-AI Filing Summary

NB Bancorp director Raza Muhammad reported receiving an award of 2,402 shares of NB Bancorp, Inc. common stock on January 2, 2026, coded as an acquisition at a price of $0. These shares are restricted stock that vest 100% on January 2, 2027.

After this award, he beneficially owns 77,639 shares of common stock directly, which include shares of restricted stock that vest at a rate of 20% per year starting April 24, 2026. He also reports indirect beneficial ownership of 3,706 shares held by an IRA.

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^*

Raza Muhammad

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/02/2026

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	01/02/2026		A		2,402(1)	A	$0	77,639(2)	D
Common Stock								3,706	I	By IRA

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 100% on January 2, 2027.

2. Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.

	/s/ Steven Lanter, pursuant to power of attorney	01/06/2026
	** 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 insider transaction did NB Bancorp (NBBK) disclose in this Form 4?

The filing shows that director Raza Muhammad acquired 2,402 shares of NB Bancorp, Inc. common stock on January 2, 2026, at a price of $0, reported as an acquisition of restricted stock.

How many NB Bancorp (NBBK) shares does Raza Muhammad own after this transaction?

Following the reported transaction, Raza Muhammad beneficially owns 77,639 shares of NB Bancorp common stock directly and 3,706 shares indirectly through an IRA.

What are the vesting terms of the 2,402 restricted shares reported for NB Bancorp (NBBK)?

The 2,402 newly acquired shares are restricted stock that vest 100% on January 2, 2027, according to the disclosure.

Are there other restricted NB Bancorp (NBBK) shares included in Raza Muhammad’s holdings?

Yes. The direct holding of 77,639 shares includes restricted stock that vests 20% per year, commencing on April 24, 2026.

How are indirect NB Bancorp (NBBK) holdings reported for Raza Muhammad?

The filing shows 3,706 shares of NB Bancorp common stock held indirectly, reported as owned "By IRA", indicating they are held in an IRA account.

What role does the reporting person have at NB Bancorp (NBBK)?

The reporting person, Raza Muhammad, is identified as a director of NB Bancorp, Inc. and is not listed as an officer or 10% owner in this filing.