Keystone Investors reduced Synopsys holdings by nearly 38%, amid recent insider stock sales.

Keystone Investors PTE Ltd. reduced its Synopsys holdings by 38.1%, selling 3,799 shares and leaving it with 6,172 shares valued at $2.996 million. Synopsys stock opened at $457.77, with a market cap of $70.78 billion and a P/E ratio of 31.53. The company's CEO, Sassine Ghazi, and insider Geus Aart De sold significant shares recently, with Ghazi selling 11,366 shares and De selling 15,705 shares.