NB Bancorp (NBBK) director awarded 5,403 restricted shares for $0 cost

Rhea-AI Filing Summary

NB Bancorp, Inc. director Francis Orfanello reported a grant of 5,403 shares of common stock on January 2, 2026, at a price of $0 per share. After this award, he directly beneficially owned 135,640 common shares and indirectly held an additional 7,500 shares through a retirement plan. The 5,403-share grant consists of restricted stock that vests 100% on January 2, 2027. His existing holdings include restricted shares that vest at a rate of 20% per year starting April 24, 2026.

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

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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^*

Orfanello Francis

(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		5,403(1)	A	$0	135,640(2)	D
Common Stock								7,500	I	By Retirement Plan

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) report for Francis Orfanello?

NB Bancorp reported that director Francis Orfanello received a grant of 5,403 shares of common stock on January 2, 2026, at a price of $0 per share.

How many NB Bancorp (NBBK) shares does Francis Orfanello own after this Form 4?

Following the reported transaction, Francis Orfanello beneficially owned 135,640 common shares directly and 7,500 common shares indirectly through a retirement plan.

Are the 5,403 NB Bancorp (NBBK) shares granted to Francis Orfanello restricted stock?

Yes. The filing states that the 5,403 shares are restricted stock that vests 100% on January 2, 2027.

What are the vesting terms of Francis Orfanello’s other restricted NB Bancorp (NBBK) shares?

The filing notes that his holdings include restricted shares that vest at a rate of 20% per year, commencing on April 24, 2026.

How are Francis Orfanello’s indirect NB Bancorp (NBBK) holdings structured?

The Form 4 shows 7,500 common shares held indirectly with the nature of ownership described as "By Retirement Plan".

What is Francis Orfanello’s role at NB Bancorp (NBBK)?

According to the filing, Francis Orfanello is a director of NB Bancorp, Inc. and is not listed as an officer or 10% owner.