Ameriprise Financial Inc. grew its stake in shares of Synopsys by 26.2% during the 4th quarter. Ameriprise Financial Inc. now owns 1,888,181 shares of the semiconductor company's stock valued at $916,441,000 after buying an additional 391,681 shares during the period. Finally, Vanguard Group Inc. grew its stake in shares of Synopsys by 2.4% during the 1st quarter. Vanguard Group Inc. now owns 14,829,770 shares of the semiconductor company's stock valued at $6,359,747,000 after buying an additional 346,994 shares during the period. 85.47% of the stock is owned by hedge funds and other institutional investors.