X0508 4 2025-02-13 0000033185 EQUIFAX INC EFX 0001335111 Begor Mark W 1550 PEACHTREE STREET, N.W. ATLANTA GA 30309 1 1 CEO 1 Common Stock 2025-02-13 4 M 0 22161.0000 175.4800 A 164404.0000 D Common Stock 2025-02-13 4 S 0 595.0000 253.5968 D 163809.0000 D Common Stock 2025-02-13 4 S 0 1402.0000 256.3083 D 162407.0000 D Common Stock 2025-02-13 4 S 0 1600.0000 252.3775 D 160807.0000 D Common Stock 2025-02-13 4 S 0 5214.0000 255.2708 D 155593.0000 D Common Stock 2025-02-13 4 S 0 6199.0000 250.7382 D 149394.0000 D Common Stock 2025-02-13 4 S 0 7151.0000 251.5952 D 142243.0000 D Common Stock 43382.0000 I 2-Year 2023 GRAT Common Stock 20025.0000 I 2-year Feb 2024 GRAT Common Stock 24125.0000 I 2-yr Jul 2024 GRAT Common Stock 24225.0000 I 3-yr Jul 2024 GRAT Common Stock 12333.0000 I 4-Year 2021 GRAT Stock Option/Right to Buy 175.4800 2025-02-13 4 M 0 22161.0000 0.0000 D 2026-02-21 Common Stock 22161.0000 22160.0000 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 11/14/2024. Includes accrued dividend equivalent units for dividends reinvested in corresponding restricted stock units through the Company's last dividend payment date and 147 shares of common stock purchased pursuant to the Equifax Inc. 2020 Employee Stock Purchase Plan. The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $253.26 to $254.19, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $255.89 to $256.78, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $252.24 to $252.61, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $254.815 to $255.77, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $250.095 to $251.03, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $251.17 to $252.14, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. The option vested in three equal annual increments beginning 2/21/2021. /s/Lisa Stockard as Attorney-in-Fact 2025-02-18