NAPCO Security Technologies Announces Full Exercise of Underwriters' Option to Purchase Additional Shares from Selling Stockholder News provided by Share this article Share this article AMITYVILLE, N.Y., Dec. 18, 2020 /PRNewswire/ -- NAPCO Security Technologies, Inc. (NASDAQ: NSSC) ("NAPCO"), one of the world's leading manufacturers and service providers of high-tech electronic security devices as well as a leading provider of school security and safety solutions, announced today that the underwriters of the previously announced underwritten secondary public offering by NAPCO's Chairman of t...