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About NB Bancorp, Inc. Common Stock (NBBK)

NB Bancorp, Inc. focuses on operating as a bank holding company for Needham Bank that provides various banking products and services in Greater Boston metropolitan area and surrounding communities in the United States. The company offers various deposits, including certificate of deposit, individual retirement, money market, savings, NOW, demand deposit, and interest-bearing and noninterest-bearing checking accounts; and commercial real estate and multifamily, one- to four-family residential real estate, construction and land development, commercial and industrial, and consumer loans, as well as home equity loans and lines of credit. It also invests in securities consisting of U.S. treasury and federal agency securities, government-sponsored residential mortgage-backed securities, municipal bonds, and corporate bonds. NB Bancorp, Inc. was founded in 1892 and is based in Needham, Massachusetts.

Ticker
NBBK
Exchange
XNAS
Sector
Financial Services
Industry
Banks - Regional

Company profile updated October 15, 2026.

Stored market snapshot

As of October 12, 2026. Daily closing data may differ from the live quote shown in the dashboard.

Stored daily close (USD)
$22.34
Company market capitalization (USD)
$978,905,066.6
Price / earnings (TTM)
16.54×
Price / book
1.16×

Research NBBK

Compare the company’s price history and fundamentals in the dashboard. Explore disclosed trading and ownership activity in these research collections: