NBBK

NB Bancorp, Inc. Common Stock

Financial Services · $920M market cap

Verdict

We can't put a fair value on NBBK right now. Our bank valuation came out more than 3× away from the share price, and no other method fits a business like this. We'd rather show nothing than a misleading number.

Business quality

2 of 5 clear the 10% bar. What are the Big Five?

Earnings per share growth29.9% a year✓
Equity per share growth8.2% a year✗
Sales growth34.4% a year✓
Free cash flow growth8.6% a year✗
Return on invested capital2.0%✗

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Insider activity

Since Aug 14, 2026: 2 open-market purchases worth $48K and 1 sale worth $46K. Why purchases matter

Purchases

Sales

About NB Bancorp, Inc. Common Stock

NB Bancorp, Inc. focuses on operating as a bank holding company for Needham Bank that provides various banking products and services in the 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…

Banks - Regional

Fair value and Payback Price are estimates from the company's reported financials, not investment advice. Prices as of the close of Oct 3, 2026. How the Payback Price works

NBBK stock (NB Bancorp, Inc. Common Stock): ownership and insider trades — PaybackPrice