 Andrew DAmico, at Vicor NASDAQ:VICR, made a large buy and sell of company shares on September 3, according to a new SEC filing. What Happened: A Form 4 filing from the U.S. Securities and Exchange Commission states that Andrew DAmico purchased 3,000 Vicor shares at prices ranging from 10.07 to 12.61 per share for a total of 35,290 on September 3. 