It was reported on September 30, that George J Christ, 10% Owner at Altair Engineering (NASDAQ:ALTR) executed a significant insider sell, according to an SEC filing. What Happened: A Form 4 filing with the U.S. Securities and Exchange Commission on Monday outlined that Christ executed a sale of 50,048 shares of Altair Engineering with a total value of $4,758,223. The latest update on Tuesday morning shows Altair Engineering shares down by 3.2%, trading at $92.45. All You Need to Know About Altair EngineeringAltair Engineering Inc is a provider of enterprise-class engineering software enabling …