NB Bancorp, Inc.
NB Bancorp, Inc. (Nasdaq: NBBK) is a bank holding company headquartered in Needham, Massachusetts, that operates through its wholly-owned subsidiary, Needham Bank. The company's website is www.needhambank.com. Founded in 1892, Needham Bank is a Massachusetts-chartered cooperative bank that has continuously served its… From the company’s description.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What NB Bancorp, Inc. does
In the company’s own words
NB Bancorp, Inc. (Nasdaq: NBBK) is a bank holding company headquartered in Needham, Massachusetts, that operates through its wholly-owned subsidiary, Needham Bank. The company's website is www.needhambank.com. Founded in 1892, Needham Bank is a Massachusetts-chartered cooperative bank that has continuously served its community for over 130 years, establishing itself as one of the largest community banks in the Greater Boston metropolitan area and throughout New England.
The bank's primary business consists of accepting deposits from the general public and deploying those funds into a diversified loan portfolio and securities investments. As of December 31, 2025, the bank's total loan portfolio of approximately $6.0 billion was composed of commercial real estate and multifamily loans representing 40.7 percent, one-to-four-family residential real estate loans and home equity loans comprising 22.2 percent, commercial and industrial loans accounting for 16.8 percent, construction and land development loans totaling 12.2 percent, mortgage warehouse loans at 4.7 percent, and consumer loans at 3.4 percent. The bank offers various deposit products including certificates of deposit, money market accounts, savings accounts, and checking accounts, along with cash management services and online and mobile banking capabilities.
NB Bancorp operates through an expanded branch network following its November 2025 acquisition of Provident Bancorp and its subsidiary BankProv, which added approximately $1.4 billion in assets and extended the bank's presence into northern Massachusetts, southern New Hampshire, and established a mortgage warehouse lending center in Florida. The combined organization operates multiple banking offices throughout Massachusetts and New Hampshire, serving the Greater Boston metropolitan area, surrounding communities, eastern Connecticut, southern New Hampshire, and Rhode Island.
The bank's business strategy emphasizes measured growth in commercial real estate and multifamily lending, diversification of its commercial and industrial portfolio across small business, middle market, and structured finance divisions, continued emphasis on residential mortgage lending, and deposit gathering through enhanced technology and cash management products. The company maintains a strong focus on personalized customer service and community involvement, having established the Needham Bank Charitable Foundation with initial funding of $19.1 million to support local nonprofit organizations.
Company details
- Sector
- Financials
- Industry
- Banks & Brokers
- Headquarters
- NEEDHAM, MA
- Fiscal year end
- December
- CIK
- 1979330
- SIC
- 6036
Financial performance, year by year
Fiscal 2023–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns NB Bancorp, Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · NB Bancorp, Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Could not be determined for this company: bond issues.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
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