X0609 4 2026-04-24 0000033185 EQUIFAX INC EFX 0001335111 Begor Mark W false 1550 PEACHTREE STREET, N.W. ATLANTA GA 30309 1 1 CEO 1 Common Stock 2026-04-24 4 M 0 37791.0000 112.4600 A 309521.0000 D Common Stock 2026-04-24 4 S 0 1717.0000 174.3233 D 307804.0000 D Common Stock 2026-04-24 4 S 0 4659.0000 173.3864 D 303145.0000 D Common Stock 2026-04-24 4 S 0 10944.0000 171.5671 D 292201.0000 D Common Stock 2026-04-24 4 S 0 20471.0000 172.4615 D 271730.0000 D Common Stock 10500.0000 I 2-yr 2025 GRAT Common Stock 21284.0000 I 2-yr Dec 2025 GRAT Common Stock 38332.0000 I 2-yr Jun 2025 GRAT Common Stock 12333.0000 I 2-yr May 2025 GRAT Stock Option/Right to Buy 112.4600 2026-04-24 4 M 0 37791.0000 112.4600 D 2028-05-04 Common Stock 37791.0000 75583.0000 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 10/28/2025. Includes accrued dividend equivalent units for dividends reinvested in corresponding restricted stock units through the Company's last dividend payment date and 280 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 $173.98 to $174.78, 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 $172.986 to $173.975, 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 $170.982 to $171.979, 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 $171.986 to $172.975, 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 5/4/2019. /s/Lisa Stockard as Attorney-in-Fact 2026-04-28