BSB Bancorp Inc., holding company for Belmont Savings Bank, completed its stock offering yesterday in connection with the mutual-to-stock conversion of BSB Bancorp MHC, the former mutual holding company for the bank.

Shares of the company’s common stock are expected to begin trading today on the Nasdaq Capital Market, under the symbol "BLMT," according to a statement.

The company sold 8,993,000 shares of common stock in the offering, including 458,643 shares sold to the bank’s tax-qualified Employee Stock Ownership Plan, at an offering price of $10 per share. Gross proceeds totaled approximately $89.9 million, the company said.

BSB also contributed $200,000 in cash and 179,860 shares of its common stock to Belmont Savings Bank Foundation, a not-for-profit charitable foundation the bank established in connection with the stock offering and conversion.

Belmont Savings Bank operates four full-service branch offices in Belmont and Watertown.