X0508 4 2024-05-24 0000033185 EQUIFAX INC EFX 0001753380 Griggs James M 1550 PEACHTREE STREET, N.W. ATLANTA GA 30309 1 SVP & Corp Controller 1 Common Stock 2024-05-24 4 M 0 2400.0000 97.1900 A 7401.0000 D Common Stock 2024-05-24 4 M 0 10.0000 105.9900 A 7411.0000 D Common Stock 2024-05-24 4 S 0 105.0000 238.2001 D 7306.0000 D Common Stock 2024-05-24 4 S 0 228.0000 235.5087 D 7078.0000 D Common Stock 2024-05-24 4 S 0 289.0000 236.8824 D 6789.0000 D Common Stock 2024-05-24 4 S 0 320.0000 239.8666 D 6469.0000 D Common Stock 2024-05-24 4 S 0 1468.0000 239.1634 D 5001.0000 D Stock Option/Right to Buy 105.9900 2024-05-24 4 M 0 10.0000 0.0000 D 2027-09-29 Common Stock 10.0000 0.0000 D Stock Option/Right to Buy 97.1900 2024-05-24 4 M 0 2400.0000 0.0000 D 2028-10-26 Common Stock 2400.0000 1305.0000 D The sales reported in this Form 4 were effected pursuant to a rule 10b5-1 trading plan adopted by the reporting person on 2/23/2024. Includes accrued dividend equivalent units for dividends reinvested in corresponding restricted stock units through the Company's last dividend payment date. The price reported in column 4 is a weighted average price. The shares were sold at prices ranging from $237.645 to $238.40, 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 $235.045 to $235.815, 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 $236.615 to $237.41, 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 $239.675 to $240.25, 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 $238.64 to $239.48, 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 9/29/2018. The option vested in three equal annual increments beginning 10/26/2019. /s/Lisa Stockard as Attorney-in-Fact 2024-05-29