Microsemi Corp. (Santa Ana, CA) announced that the underwriters of its recent 2,022,000 share common stock offering (including 22,000 shares sold by Security-holders) exercised their overallotment option to purchase an additional 303,300 shares of common stock from Microsemi at $21.00 per share, before under-writing discounts.Net proceeds to the company of its offering, including the exercise of the over-allotment option, totaled approximately $45.3 million. The company's use of the net proceeds of the offering includes repayment of all the indebtedness outstanding under its bank, which is approximately $37.0 million, and general corporate purposes, which may include capital expenditures or future acquisitions.