X0508 4 2025-03-11 0001257640 KRONOS WORLDWIDE INC KRO 0001549592 Kramer Kevin B 5430 LBJ FREEWAY SUITE 1700 DALLAS TX 75240 1 0 0 0 0 Common Stock $0.01 par value 2025-03-11 4 P 0 3000 7.37 A 10460.461 D Common Stock $0.01 par value 2025-03-11 4 P 0 3000 7.38 A 13460.461 D Common Stock $0.01 par value 2025-03-11 4 P 0 1000 7.42 A 14460.461 D Common Stock $0.01 par value 2025-03-11 4 P 0 2200 7.46 A 16660.461 D Common Stock $0.01 par value 2025-03-11 4 P 0 1800 7.47 A 18460.461 D Common Stock $0.01 par value 2025-03-11 4 P 0 591 7.49 A 19051.461 D Common Stock $0.01 par value 2025-03-11 4 P 0 386 7.50 A 19437.461 D Common Stock $0.01 par value 2025-03-11 4 P 0 100 7.51 A 19537.461 D Common Stock $0.01 par value 2025-03-11 4 P 0 1923 7.53 A 21460.461 D Jane R. Grimm, Attorney-in-fact for Kevin B. Kramer 2025-03-12