X0508 4 2025-10-27 0000033185 EQUIFAX INC EFX 0001335111 Begor Mark W 1550 PEACHTREE STREET, N.W. ATLANTA GA 30309 1 1 CEO 1 Common Stock 2025-10-27 4 M 0 27959.0000 191.4400 A 170940.0000 D Common Stock 2025-10-27 4 G 0 47.0000 0.0000 D 170893.0000 D Common Stock 2025-10-27 4 S 0 174.0000 233.8764 D 170719.0000 D Common Stock 2025-10-27 4 S 0 204.0000 235.2210 D 170515.0000 D Common Stock 2025-10-27 4 S 0 3757.0000 231.4585 D 166758.0000 D Common Stock 2025-10-27 4 S 0 4015.0000 233.0134 D 162743.0000 D Common Stock 2025-10-27 4 S 0 6227.0000 229.2042 D 156516.0000 D Common Stock 2025-10-27 4 S 0 6639.0000 230.1840 D 149877.0000 D Common Stock 2025-10-27 4 S 0 6943.0000 232.1887 D 142934.0000 D Common Stock 2025-10-27 4 S 0 37.0000 233.9468 D 43394.0000 I 2-yr Jun 2025 GRAT Common Stock 2025-10-27 4 S 0 76.0000 234.9300 D 43318.0000 I 2-yr Jun 2025 GRAT Common Stock 2025-10-27 4 S 0 2801.0000 233.1237 D 40517.0000 I 2-yr Jun 2025 GRAT Common Stock 2025-10-27 4 S 0 3331.0000 231.5939 D 37186.0000 I 2-yr Jun 2025 GRAT Common Stock 2025-10-27 4 S 0 3995.0000 229.1207 D 33191.0000 I 2-yr Jun 2025 GRAT Common Stock 2025-10-27 4 S 0 5274.0000 232.2704 D 27917.0000 I 2-yr Jun 2025 GRAT Common Stock 2025-10-27 4 S 0 5872.0000 230.1601 D 22045.0000 I 2-yr Jun 2025 GRAT Common Stock 10500.0000 I 2-yr 2025 GRAT Common Stock 9525.0000 I 2-yr Feb 2024 GRAT Common Stock 11380.0000 I 2-yr Jul 2024 GRAT Common Stock 12333.0000 I 2-yr May 2025 GRAT Common Stock 16287.0000 I 3-yr Jul 2024 GRAT Stock Option/Right to Buy 191.4400 2025-10-27 4 M 0 27959.0000 0.0000 D 2026-02-21 Common Stock 27959.0000 0.0000 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 199 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 $233.795 to $234.215, 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 $234.93 to $235.43, 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 $230.74 to $231.734, 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 $232.74 to $233.72, 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 $228.73 to $229.72, 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 $229.74 to $230.72, 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 $231.735 to $232.71, 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 $233.88 to $234.215, 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 $232.85 to $233.80, 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 $230.83 to $231.82, 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 $228.73 to $229.685, 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 $231.845 to $232.81, 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 $229.7507 to $230.7266, 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 2025-10-29