ACDC · ProFrac Holding Corp.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $5.12 to $5.45 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 reporting person is the Manager of JCMWZ, LLC. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

Reflects shares of the Issuer's Class A common stock acquired in the open market directly by THRC Holdings LP. The general partner of THRC Holdings is THRC Management LLC, a Texas limited liability company. Dan Wilks is the sole member of THRC Management LLC and 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 LP, and therefore may be deemed to beneficially own such shares.

The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $5.12 to $5.45 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.

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.

Reflects shares of the Issuer's Class A common stock acquired in the open market directly by THRC Holdings LP. The general partner of THRC Holdings is THRC Management LLC, a Texas limited liability company. Dan Wilks is the sole member of THRC Management LLC and 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 LP, and therefore may be deemed to beneficially own such shares.

The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $4.645 to $4.99 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.

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 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $4.645 to $4.99 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 reporting person is the Manager of JCMWZ, LLC. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

Effective August 7, 2026, the Reporting Person resigned as Chief Executive Officer of the Issuer and was appointed to serve as a member of the Board of Directors. In connection with his transition from Chief Executive Officer, the Reporting Person forfeited all unvested equity awards granted under the Issuer's 2022 Long-Term Incentive Plan, consisting of the following grants: 26,315 units granted on 03/29/2024; 57,068 units granted on 03/28/2025; and an aggregate of 287,500 units granted on 04/07/2026, representing a total of 370,883 forfeited units.

Shares of the Issuer's Class A common stock were acquired by Wilks Brothers, LLC, a Texas limited Liability company ("Wilks Brothers") pursuant to the terms of the Shared Services Agreement, dated May 3, 2022, between Wilks Brothers and ProFrac Holdings II, LLC, an indirect wholly-owned subsidiary of the Issuer ("PFII"), as amended by a Letter Agreement dated June 30, 2025 (as amended, the "Services Agreement")

Under the Services Agreement, PFII was required to pay in arrears upon satisfaction of an approval condition, a quarterly services fee of $1,750,000 in shares of the Issuer's Class A Common Stock, until a specified liquidity condition is satisfied. The number of shares issued each quarter is determined by dividing the applicable services fee by the 10-day volume-weighted average price of the Issuer's Common Stock at the end of the quarter. With respect to the Q4 2025 issuance, the liquidity condition was satisfied during the quarter, resulting in a prorated services fee of $1,557,692.31 for the partial period.

Reflects shares of the Issuer's Class A common stock held directly by Wilks Brothers. Dan H. Wilks, as 50% owner and a Manager of Wilks Brothers, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A common stock directly owned by Wilks Brothers, 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.

Shares of the Issuer's Class A common stock were acquired by Wilks Brothers, LLC, a Texas limited Liability company ("Wilks Brothers") pursuant to the terms of the Shared Services Agreement, dated May 3, 2022, between Wilks Brothers and ProFrac Holdings II, LLC, an indirect wholly-owned subsidiary of the Issuer ("PFII"), as amended by a Letter Agreement dated June 30, 2025 (as amended, the "Services Agreement").

Under the Services Agreement, PFII was required to pay in arrears upon satisfaction of an approval condition, a quarterly services fee of $1,750,000 in shares of the Issuer's Class A Common Stock, until a specified liquidity condition is satisfied. The number of shares issued each quarter is determined by dividing the applicable services fee by the 10-day volume-weighted average price of the Issuer's Common Stock at the end of the quarter. With respect to the Q4 2025 issuance, the liquidity condition was satisfied during the quarter, resulting in a prorated services fee of $1,557,692.31 for the partial period.

Reflects shares of the Issuer's Class A common stock held directly by Wilks Brothers. Farris C. Wilks, as 50% owner and a Manager of Wilks Brothers, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A common stock directly owned by Wilks Brothers, 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.

Reflects restricted stock units ("RSUs") granted to the reporting person under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share. The RSUs were granted with a total grant date fair value of $150,000, as approved by the Compensation Committee, with an effective grant date of May 27, 2026. The RSUs vest in full on May 27, 2027, the first anniversary of the grant date, subject to the reporting person's continued service on the Board through the vesting date.

Reflects restricted stock units ("RSUs") granted to the reporting person under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share. The RSUs were granted with a total grant date fair value of $150,000, as approved by the Compensation Committee, with an effective grant date of May 27, 2026. The RSUs vest in full on May 27, 2027, the first anniversary of the grant date, subject to the reporting person's continued service on the Board through the vesting date.

Reflects restricted stock units ("RSUs") granted to the reporting person under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share. The RSUs were granted with a total grant date fair value of $150,000, as approved by the Compensation Committee, with an effective grant date of May 27, 2026. The RSUs vest in full on May 27, 2027, the first anniversary of the grant date, subject to the reporting person's continued service on the Board through the vesting date.

Reflects restricted stock units ("RSUs") granted to the reporting person under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share. The RSUs were granted with a total grant date fair value of $150,000, as approved by the Compensation Committee, with an effective grant date of May 27, 2026. The RSUs vest in full on May 27, 2027, the first anniversary of the grant date, subject to the reporting person's continued service on the Board through the vesting date.

Reflects restricted stock units ("RSUs") granted to the reporting person under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share. The RSUs were granted with a total grant date fair value of $150,000, as approved by the Compensation Committee, with an effective grant date of May 27, 2026. The RSUs vest in full on May 27, 2027, the first anniversary of the grant date, subject to the reporting person's continued service on the Board through the vesting date.

Reflects performance-based restricted stock units ("RSUs") granted under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share if certain performance criteria are met. Following April 7, 2027, the RSUs will vest as to the following percentages when the following stock price targets have been achieved: 10% of the RSUs, when the average of the daily volume-weighted average price per share of the Company's Class A common stock over the most recent 30 trading days (the "VWAP Threshold") equals or exceeds $7.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $10.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $14.00, and 40% of the RSUs, when the VWAP Threshold equals or exceeds $18.00. The Reporting Person must also remain continuously employed by and in good standing with the Company or an affiliate on each applicable vesting date.

Reflects performance-based restricted stock units ("RSUs") granted under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share if certain performance criteria are met. Following April 7, 2027, the RSUs will vest as to the following percentages when the following stock price targets have been achieved: 10% of the RSUs, when the average of the daily volume-weighted average price per share of the Company's Class A common stock over the most recent 30 trading days (the "VWAP Threshold") equals or exceeds $7.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $10.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $14.00, and 40% of the RSUs, when the VWAP Threshold equals or exceeds $18.00. The Reporting Person must also remain continuously employed by and in good standing with the Company or an affiliate on each applicable vesting date.

Reflects performance-based restricted stock units ("RSUs") granted under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share if certain performance criteria are met. Following April 7, 2027, the RSUs will vest as to the following percentages when the following stock price targets have been achieved: 10% of the RSUs, when the average of the daily volume-weighted average price per share of the Company's Class A common stock over the most recent 30 trading days (the "VWAP Threshold") equals or exceeds $7.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $10.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $14.00, and 40% of the RSUs, when the VWAP Threshold equals or exceeds $18.00. The Reporting Person must also remain continuously employed by and in good standing with the Company or an affiliate on each applicable vesting date.

Reflects performance-based restricted stock units ("RSUs") granted under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share if certain performance criteria are met. Following April 7, 2027, the RSUs will vest as to the following percentages when the following stock price targets have been achieved: 10% of the RSUs, when the average of the daily volume-weighted average price per share of the Company's Class A common stock over the most recent 30 trading days (the "VWAP Threshold") equals or exceeds $7.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $10.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $14.00, and 40% of the RSUs, when the VWAP Threshold equals or exceeds $18.00. The Reporting Person must also remain continuously employed by and in good standing with the Company or an affiliate on each applicable vesting date.

Reflects performance-based restricted stock units ("RSUs") granted under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share if certain performance criteria are met. Following April 7, 2027, the RSUs will vest as to the following percentages when the following stock price targets have been achieved: 10% of the RSUs, when the average of the daily volume-weighted average price per share of the Company's Class A common stock over the most recent 30 trading days (the "VWAP Threshold") equals or exceeds $7.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $10.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $14.00, and 40% of the RSUs, when the VWAP Threshold equals or exceeds $18.00. The Reporting Person must also remain continuously employed by and in good standing with the Company or an affiliate on each applicable vesting date.

The stock equivalent units vest in three equal annual installments beginning in April 2027, subject to continued service. Each stock equivalent unit represents the right to receive a cash payment equal to the fair market value of one share of the Company's Class A common stock upon vesting. The stock equivalent units do not have an exercise price or expiration date.

Reflects performance-based restricted stock units ("RSUs") granted under the ProFrac Holding Corp. 2022 Long Term Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock, par value $0.01 per share if certain performance criteria are met. Following April 7, 2027, the RSUs will vest as to the following percentages when the following stock price targets have been achieved: 10% of the RSUs, when the average of the daily volume-weighted average price per share of the Company's Class A common stock over the most recent 30 trading days (the "VWAP Threshold") equals or exceeds $7.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $10.00, 25% of the RSUs, when the VWAP Threshold equals or exceeds $14.00, and 40% of the RSUs, when the VWAP Threshold equals or exceeds $18.00. The Reporting Person must also remain continuously employed by and in good standing with the Company or an affiliate on each applicable vesting date.

Represents disposed shares, settled in cash, to satisfy withholding taxes applicable upon the March 31, 2026 vesting of the March 31, 2023 grant of restricted stock units under the 2022 Long Term Incentive Plan.

Represents disposed shares, settled in cash, to satisfy withholding taxes applicable upon vesting on March 31, 2026 of the March 31, 2023 grant of restricted stock units under the 2022 Long Term Incentive Plan.

Reflects the disposal of restricted stock units granted to the reporting person on March 31, 2023, which vested on March 31, 2026 and were settled with the reporting person in cash.

Represents aggregate disposed shares, settled in cash, to satisfy withholding taxes applicable upon vesting of the March 31, 2023 grant of restricted stock units, including performance-based restricted stock units, under the 2022 Long Term Incentive Plan. This disposal covers withholding taxes applicable for all shares which vested on March 31, 2026.

Reflects the disposal of restricted stock units granted to the reporting person on March 31, 2023, which vested on March 31, 2026 and were settled with the reporting person in cash.

Reflects disposal of restricted stock units granted to the reporting person on March 31, 2023, which vested on March 31, 2026 and were settled with the reporting person in cash.

Reflects the disposal of performance-based shares of Company common stock, granted on March 9, 2026 under the 2023 performance-based award, which vested on March 31, 2026 and were settled with the reporting person in cash.

Reflects the partial disposal of performance-based shares of Company common stock, granted on March 9, 2026 under the 2025 performance-based award, which vested on March 27, 2026, and were settled with the reporting person in cash. The remaining shares granted on March 9, 2026 will vest equally on March 26, 2027 and March 28, 2028, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2025, which vested on March 27, 2026 and were settled with the reporting person in cash. The remaining shares granted on March 28, 2025 will vest equally on March 26, 2027 and March 28, 2028, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of performance-based shares of Company common stock, granted on March 13, 2025 under the 2024 performance-based award, which vested on March 27, 2026, and were settled with the reporting person in cash. The remaining shares granted on March 13, 2025 will vest March 26, 2027, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2025, which vested on March 27, 2026 and were settled with the reporting person in cash. The remaining shares granted on March 28, 2025 will vest equally on March 26, 2027 and March 28, 2028, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2025, which vested on March 27, 2026, and were settled with the reporting person in cash. The remaining shares granted on March 28, 2025 will vest equally on March 26, 2027 and March 28, 2028, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2024, which vested on March 27, 2026 and were settled with the reporting person in cash. The remaining shares granted on March 28, 2024 will vest March 26, 2027, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Represents aggregate disposed shares, settled in cash, to satisfy withholding taxes applicable upon vesting of the March 28, 2024 and March 28, 2025 grants of restricted stock units, including performance-based restricted stock units, under the 2022 Long Term Incentive Plan. This disposal covers withholding taxes applicable for all shares which vested on March 27, 2026.

Represents aggregate disposed shares, settled in cash, to satisfy withholding taxes applicable upon vesting of the March 28, 2025 grant of restricted stock units, including performance-based restricted stock units, under the 2022 Long Term Incentive Plan. This disposal covers withholding taxes applicable for all shares which vested on March 27, 2026.

Reflects the partial disposal of performance-based shares of Company common stock, granted on March 13, 2025 under the 2024 performance-based award, which vested on March 27, 2026, and were settled with the reporting person in cash. The remaining shares granted on March 13, 2025 will vest March 26, 2027, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of performance-based shares of Company common stock, granted on March 9, 2026 under the 2025 performance-based award, which vested on March 27, 2026, and were settled with the reporting person in cash. The remaining shares granted on March 9, 2026 will vest equally on March 26, 2027 and March 28, 2028, subject to the reporting person's continued employment and good standing through the applicable vesting date.

The reported transaction represents the vesting and cash settlement of the first installment of stock equivalent units granted on March 28, 2025. The stock equivalent units do not have an exercise price or expiration date.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2024, which vested on March 27, 2026 and were settled with the reporting person in cash. The remaining shares granted on March 28, 2024 will vest March 26, 2027, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of performance-based shares of Company common stock, granted on March 9, 2026 under the 2025 performance-based award, which vested on March 27, 2026, and were settled with the reporting person in cash. The remaining shares granted on March 9, 2026 will vest equally on March 26, 2027 and March 28, 2028, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2024, which vested on March 27, 2026 and were settled with the reporting person in cash. The remaining shares granted on March 28, 2024 will vest March 26, 2027, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2025, which vested on March 27, 2026 and were settled with the reporting person in cash. The remaining shares granted on March 28, 2025 will vest equally on March 26, 2027 and March 28, 2028, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Represents aggregate disposed shares, settled in cash, to satisfy withholding taxes applicable upon vesting of the March 28, 2024 and March 28, 2025 grants of restricted stock units, including performance-based restricted stock units, under the 2022 Long Term Incentive Plan. This disposal covers withholding taxes applicable for all shares which vested on March 27, 2026.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2024, which vested on March 27, 2026, and were settled with the reporting person in cash. The remaining shares granted on March 28, 2024 will vest March 26, 2027, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Reflects the partial disposal of restricted stock units granted to the reporting person on March 28, 2025, which vested on March 27, 2026 and were settled with the reporting person in cash. The remaining shares granted on March 28, 2025 will vest equally on March 26, 2027 and March 28, 2028, subject to the reporting person's continued employment and good standing through the applicable vesting date.

Represents aggregate disposed shares, settled in cash, to satisfy withholding taxes applicable upon vesting of the March 28, 2024 and March 28, 2025 grants of restricted stock units under the 2022 Long Term Incentive Plan. This disposal covers withholding taxes applicable for all shares which vested on March 27, 2026.

Represents aggregate disposed shares, settled in cash, to satisfy withholding taxes applicable upon vesting of the March 28, 2024 and March 28, 2025 grants of restricted stock units under the 2022 Long Term Incentive Plan. This disposal covers withholding taxes applicable for all shares which vested on March 27, 2026.

Represents 34,743 and 7,047 shares of Company common stock issued under performance share awards granted to the reporting person on March 28, 2025 (the "March 2025 Grant") and March 31, 2023 (the "March 2023 Grant"), respectively. The awards are subject to performance-vesting restrictions based on EBITDA, free cash flow and other performance criteria for the performance period from January 1, 2025 to December 31, 2025. The performance-vesting restrictions with respect to these shares were released on the date reported in Column 2 above upon certification of performance goal attainment by the Compensation Committee of the Company's Board of Directors. The shares of the March 2025 Grant will vest equally on March 28, 2026, March 28, 2027 and March 28, 2028, subject to the reporting person's continued service and good standing through each applicable vesting date. The shares of the March 2023 Grant will vest on March 31, 2026.

Represents shares of Company common stock issued under performance share awards granted to the reporting person on March 28, 2025. The award was subject to performance-vesting restrictions based on EBITDA, free cash flow and other performance criteria for the performance period from January 1, 2025 to December 31, 2025. The performance-vesting restrictions with respect to these shares were released on the date reported in Column 2 above upon certification of performance goal attainment by the Compensation Committee of the Company's Board of Directors. These shares will vest equally on March 28, 2026, March 28, 2027 and March 28, 2028, subject to the reporting person's continued service and good standing through each applicable vesting date.

Represents shares of Company common stock issued under performance share awards granted to the reporting person on March 28, 2025. The award was subject to performance-vesting restrictions based on EBITDA, free cash flow and other performance criteria for the performance period from January 1, 2025 to December 31, 2025. The performance-vesting restrictions with respect to these shares were released on the date reported in Column 2 above upon certification of performance goal attainment by the Compensation Committee of the Company's Board of Directors. These shares will vest equally on March 28, 2026, March 28, 2027 and March 28, 2028, subject to the reporting person's continued service and good standing through each applicable vesting date.