The underwriter for MidWestOne Financial Group Inc.'s previously announced common stock offering fully exercised its overallotment option to buy an additional 250,000 shares.

The shares were issued at a public price of $34.25 per share, less customary underwriting discounts and commissions. The net proceeds from the overallotment option will be approximately $8.2 million.

Keefe Bruyette & Woods Inc., a Stifel Co., is the sole underwriter for the transaction.