NB Bancorp posts investor slide presentation

NB Bancorp, Inc., the parent company of Needham Bank, filed a current report to note that it made an investor slide presentation available at an in-person bank investor meeting.

Rhea-AI Filing Summary

NB Bancorp, Inc., the parent company of Needham Bank, filed a current report to note that it made an investor slide presentation available at an in-person bank investor meeting. The materials provide information about the company’s operations and financial performance.

The slide deck, dated February 4, 2026, is furnished as Exhibit 99.1 to this report and incorporated by reference, allowing investors to review the same information presented at the meeting.

8-K Event Classification

2 items: 8.01, 9.01

2 items

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did NB Bancorp, Inc. (NBBK) disclose in this 8-K filing?

NB Bancorp reported that it made an investor slide presentation available at an in-person bank investor meeting. The presentation covers the company’s operations and financial performance and is furnished as Exhibit 99.1 to the report.

What is included in Exhibit 99.1 for NB Bancorp, Inc. (NBBK)?

Exhibit 99.1 contains presentation materials of NB Bancorp, Inc. dated February 4, 2026. These slides include information about the company’s operations and financial performance as shown at an in-person investor bank meeting.

When were the NB Bancorp, Inc. (NBBK) investor materials dated?

The NB Bancorp investor presentation materials are dated February 4, 2026. This date matches the reported event date for the in-person investor bank meeting where the slide presentation was made available.

Where did NB Bancorp, Inc. (NBBK) make its investor presentation available?

NB Bancorp made its slide presentation available at an in-person investors bank meeting. The same materials are also furnished to the public by being included as Exhibit 99.1 to this current report.

Who signed the NB Bancorp, Inc. (NBBK) 8-K report?

The report was signed on behalf of NB Bancorp, Inc. by Jean-Pierre Lapointe. He is identified as the Senior Executive Vice President and Chief Financial Officer of the company in the signature block.

What stock exchange lists NB Bancorp, Inc. (NBBK) common stock?

NB Bancorp’s common stock, with a par value of $0.01 per share and trading symbol NBBK, is listed on The Nasdaq Stock Market, LLC, according to the security listing information in the report.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/04/2026 - 11:00 AM EST Learn about SEC filing dates

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

FORM 8-K
CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF
THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): February 4, 2026

NB BANCORP, INC.

(Exact Name of Registrant as Specified in Charter)

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Maryland	​	001-41899	​ ​ ​	93-2560883
(State or Other Jurisdiction)	​	(Commission File No.)	​	(I.R.S. Employer
of Incorporation)	​	​	​	Identification No.)

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​	1063 Great Plain Avenue, Needham, Massachusetts	02492
​	(Address of Principal Executive Offices)	(Zip Code)

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Registrant’s telephone number, including area code: (781) 444-2100

Not Applicable
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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Title of each class	​ ​ ​	Trading Symbol(s)	​ ​ ​	Name of each exchange on which registered
Common Stock, Par Value $0.01 Per Share	​	NBBK	​	The Nasdaq Stock Market, LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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Item 8.01 OTHER EVENTS

On February 4, 2026, NB Bancorp, Inc. (the “Company”), the parent company of Needham Bank, made available a slide presentation at an in-person investors bank meeting. The presentation materials include information regarding the Company’s operations and financial performance. The slide presentation is included in this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

​	​	​
Exhibit No.	​ ​ ​	Description
99.1	​	Presentation Materials of NB Bancorp, Inc. dated February 4, 2026
104	​	Cover Page Interactive Data File (Embedded within Inline XBRL document)

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

​	​	​
​	​	NB BANCORP, INC.
​	​	​
DATE: February 4, 2026	By:	/s/Jean-Pierre Lapointe
​	​	Senior Executive Vice President and Chief Financial Officer

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