NB Bancorp, Inc.
NB Bancorp, Inc. (Nasdaq: NBBK) is the bank holding company for Needham Bank, a Massachusetts-chartered cooperative bank that provides banking services to individuals and businesses. The Bank takes deposits and uses them to fund commercial real estate and multifamily, residential mortgage, construction and land… From the company’s description.
Over the twelve months to Sep 30, 2026, NB Bancorp, Inc. reported revenue of $283.99M, up 44.5% from a year earlier, and net income of $66.95M. Its pre-tax margin was 32.3%. In fiscal 2025, it reported revenue of $213.66M, up 23.7% from fiscal 2024, and net income of $50.30M.
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 the bank holding company for Needham Bank, a Massachusetts-chartered cooperative bank that provides banking services to individuals and businesses. The Bank takes deposits and uses them to fund commercial real estate and multifamily, residential mortgage, construction and land development, commercial and industrial, mortgage warehouse and consumer lending, as well as investments in securities. Its commercial and industrial lending serves small businesses, middle-market companies and larger businesses, including customers in renewable energy and cannabis-related industries; mortgage warehouse facilities serve independent non-bank mortgage originators. The Bank also offers checking, savings, money market and certificate-of-deposit accounts, along with cash management and online and mobile banking services. Following its November 2025 acquisition of Provident Bancorp and BankProv, its network includes offices in Massachusetts and New Hampshire and a mortgage warehouse lending center in Florida. At December 31, 2025, its loan portfolio totaled approximately $5.99 billion. Needham Bank was organized in 1892 and operates primarily across Greater Boston and surrounding New England communities. Its website is www.needhambank.com.
Company details
- Sector
- Financials
- Industry (SIC)
- 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.
Put this business in context.
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