X0407 4/A 2023-05-17 2023-05-19 0 0001881487 ProFrac Holding Corp. ACDC 0001696102 Wilks Matthew C/O PROFRAC HOLDING CORP. 333 SHOPS BOULEVARD, SUITE 301 WILLOW PARK TX 76087 1 1 0 0 Executive Chairman 0 Class A Common Stock, par value $0.01 2023-05-17 4 F 0 0 0.00 D 1391889 D On May 19, 2023, the reporting person filed a Form 4 which inadvertently reported that 16,348 shares were withheld to satisfy withholding taxes applicable upon vesting of each of the May 24, 2022 and August 10, 2022 grant of restricted stock units under the 2022 Long Term Incentive Plan, however, 0 shares were withheld to satisfy withholding taxes. /s/ Robert J. Willette, Attorney-in-Fact 2023-05-26