X0407 4 2023-05-18 0 0001881487 ProFrac Holding Corp. ACDC 0001754159 THRC Holdings, LP 17018 INTERSTATE 20 CISCO TX 76437 0 0 1 0 0001834450 THRC Management, LLC 17018 INTERSTATE 20 CISCO TX 76437 0 0 1 0 0001641792 Wilks Dan H. 17018 INTERSTATE 20 CISCO TX 76437 0 0 1 0 0 Class A common stock, par value $0.01 per share 2023-05-18 4 P 0 329403 11.30 A 69397028 D Class A common stock, par value $0.01 per share 2023-05-19 4 P 0 210095 11.63 A 69607123 D THRC Holdings, LP, a Texas limited partnership ("THRC Holdings"), directly holds the securities of the Issuer. THRC Management, LLC, a Texas limited liability company ("THRC Management"), as General Partner of THRC Holdings, has exclusive voting and investment control over the shares of the Issuer's Class A common stock held by THRC Holdings, and therefore may be deemed to beneficially own such shares. Dan Wilks, as sole manager of THRC Management, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A common stock directly owned by THRC Holdings, 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 its 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 reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $11.39 to $11.80 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $11.39 to $11.80 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. THRC Holdings, LP /s/ [Javier Rocha, Attorney-in-Fact] 2023-05-22 THRC Management, LLC /s/ [Javier Rocha, Attorney-in-Fact] 2023-05-22 Dan Wilks /s/ [Javier Rocha, Attorney-in-Fact] 2023-05-22