144 0001384243 XXXXXXXX LIVE 0001730430 Kiniksa Pharmaceuticals International, plc 001-38492 105 PICCADILLY, SECOND FLOOR LONDON X0 W1J 7NJ 7814319100 Quart Barry D Director Class A ordinary shares Charles Schwab & Co., Inc.

3000 Schwab Way Westlake TX 76262

20000 1000000.00 45900637 04/06/2026 NASDAQ Class A ordinary shares 04/06/2026 Employee Stock Option Exercise - see remarks Kiniksa Pharmaceuticals, Ltd. N 20000 04/06/2026 Broker Payment for Cashless Exercise N Barry D Quart

105 PICCADILLY, SECOND FLOOR LONDON X0 W1J 7NJ

Kiniksa Pharmaceuticals International, plc 02/02/2026 830 37354.00 Barry D Quart

105 PICCADILLY, SECOND FLOOR LONDON X0 W1J 7NJ

Kiniksa Pharmaceuticals International, plc 02/03/2026 12528 567136.00 Barry D Quart

105 PICCADILLY, SECOND FLOOR LONDON X0 W1J 7NJ

Kiniksa Pharmaceuticals International, plc 02/04/2026 2602 117138.00 Barry D Quart

105 PICCADILLY, SECOND FLOOR LONDON X0 W1J 7NJ

Kiniksa Pharmaceuticals International, plc 02/10/2026 110 4950.00 Barry D Quart

105 PICCADILLY, SECOND FLOOR LONDON X0 W1J 7NJ

Kiniksa Pharmaceuticals International, plc 02/12/2026 2690 121050.00 The shares on this filing may be sold over various dates. 04/06/2026 09/11/2025 Barry D Quart