Fitchburg-based Arrhythmia Research Technology Inc. announced the closing of its offering of notes and warrants to purchase $500,000 in common stock.
The notes mature on Dec. 18, 2016, while the warrants may be exercised six months after issuance and for three years afterward, at a price of $3.51 per share.
The proceeds of the offering will be used as working capital for the medical device and software firm, according to a company statement.
