Law Firms Press Synopsys Investors Ahead of Dec. 30 Lead‑Plaintiff Deadline

Overview

• Related securities class actions are pending in the Northern District of California, including first‑filed Kim v. Synopsys, Inc., No. 25‑cv‑09410, with a subsequent case reported to have expanded the class period.
• The putative class generally covers purchases of Synopsys securities from December 4, 2024 through September 9, 2025, with some notices also covering stock received in the Ansys acquisition exchange.
• Complaints allege Synopsys prioritized artificial‑intelligence customers requiring extra customization that eroded Design IP economics and rendered certain roadmap and resource decisions unlikely to deliver results.
• On September 9, 2025, Synopsys reported revenue of $1.740 billion, net income of $242.5 million, and Design IP revenue of $426.6 million with guidance implying at least a 5% full‑year decline for the segment, and the stock fell about 35.8% the next day.
• No class has been certified, and multiple plaintiff firms this week urged investors to move by December 30, 2025 if they seek appointment as lead plaintiff.