X0306 4/A 2022-11-01 2022-11-03 0 0001881487 ProFrac Holding Corp. ACDC 0001641794 Wilks Farris 17018 INTERSTATE 20 CISCO TX 76437 0 0 1 0 0001928013 Farris & Jo Ann Wilks 2022 Family Trust 17018 INTERSTATE 20 CISCO TX 76437 0 0 1 0 0001928401 Wilks Jo Ann 17018 INTERSTATE 20 CISCO TX 76437 0 0 1 0 Class A common stock, par value $0.01 per share 10733115 I See Footnotes Reflects 10,733,115 shares of the Issuer's Class A common stock held directly by the Farris and Jo Ann Wilks 2022 Family Trust, a Texas irrevocable trust ("Farris Trust"). The number of shares owned by the Farris Trust is subject to change based on an appraisal. Farris C. Wilks serves as a trustee of the Farris Trust and, in such capacity has voting and dispository power over the shares of Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares. Jo Ann Wilks serves as a trustee of the Farris Trust and, in such capacity has dispository power over the shares of Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares. Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's respective pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4. The Reporting Person is amending the Form 4 filed on November 3, 2022 (the "Form 4") to correct the number of shares of the Issuer's Class A common stock reported as being indirectly owned by the Reporting Person through the Farris Trust to include 400 shares that were inadvertently omitted from the Form 4. /s/ Robert J. Willette, Attorney-in-Fact 2023-01-30 /s/ Robert J. Willette, Attorney-in-Fact 2023-01-30 /s/ Robert J. Willette, Attorney-in-Fact 2023-01-30