3D Systems (DDD -4.7%) co-founder/CTO Charles Hull sold 500K shares on March 13. That leaves...

|About: 3D Systems Corp. (DDD)|By:, SA News Editor

3D Systems (DDD -4.7%) co-founder/CTO Charles Hull sold 500K shares on March 13. That leaves Hull, 73, with only 461.5K shares in the company. 3D shares appear to be pressured by the news. (13D filings: I, II)