Director Barry D. Quart Exercises Options and Sells Shares in Kiniksa Pharmaceuticals

Barry D. Quart, a director of Kiniksa Pharmaceuticals International, plc (KNSA), executed a series of transactions on April 28, 2026, pursuant to a 10b5-1 trading plan established on September 11, 2025. The director exercised 13,099 share options at an exercise price of $14.33 per share, acquiring the same number of Class A Ordinary Shares. Immediately following the exercise, he sold all 13,099 shares at a weighted average price of $50.10 per share, with the actual sales prices ranging between $50.00 and $50.725. The options were fully vested and exercisable with an expiration date of June 28, 2031. Following these transactions, the director's holdings changed from 12,546 shares to 25,645 shares after exercise, then back to 12,546 shares after the sale, while retaining 13,237 unexercised options. The transactions were executed through a broker-dealer and were pre-planned under the 10b5-1 arrangement.