Efstathios A. Kouninis Stock Transactions in Pegasystems Inc.

Efstathios A. Kouninis, SVP and Chief Accounting Officer of Pegasystems Inc., reported several transactions involving the company's common stock on October 23, 2025. Kouninis acquired 8,006 shares at $22.15 per share, resulting in a total of 8,212 shares post-transaction. He also disposed of 4,013 shares at $65.50 per share, leaving him with 4,199 shares, and subsequently disposed of an additional 3,993 shares at the same price, reducing his holdings to 206 shares. Additionally, Kouninis exercised stock options for 8,006 shares at $0 per share, with the underlying security being common stock. These transactions reflect adjustments due to a 2-for-1 forward stock split effective June 20, 2025.