WTTR

SEC source: 0001562180-25-001704 · primarydocument.xml · nonDerivative · entry 1

Schmitz John · CIK 0001539285 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 545,146

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest 1/3 on February 24, 2026, 1/3 on February 24, 2027, and 1/3 on February 24, 2028.

SEC source: 0001562180-25-001702 · primarydocument.xml · nonDerivative · entry 2

Ortowski Cody · CIK 0001698465 · EVP, Business Strategy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 351,678

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001562180-25-001702 · primarydocument.xml · nonDerivative · entry 1

Ortowski Cody · CIK 0001698465 · EVP, Business Strategy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 369,810

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest 1/3 on February 24, 2026, 1/3 on February 24, 2027, and 1/3 on February 24, 2028.

SEC source: 0001562180-25-001690 · primarydocument.xml · nonDerivative · entry 2

Ibrahim Christina M · CIK 0001641402 · SVP, GC, CCO & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,195

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001562180-25-001690 · primarydocument.xml · nonDerivative · entry 1

Ibrahim Christina M · CIK 0001641402 · SVP, GC, CCO & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 148,322

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest 1/3 on February 24, 2026, 1/3 on February 24, 2027, and 1/3 on February 24, 2028.

SEC source: 0001104659-25-015286 · tm257110-5_4seq1.xml · nonDerivative · entry 2

George Christopher Kile · CIK 0001817414 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 254,612

F3 · kind: Represents shares to be withheld by Select Water Solutions, Inc., a Delaware corporation (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon vesting of the PSUs.

SEC source: 0001104659-25-015286 · tm257110-5_4seq1.xml · nonDerivative · entry 1

George Christopher Kile · CIK 0001817414 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 260,164

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on February 24, 2022 to the reporting person for which the performance conditions were satisfied.

F2 · balance_after: The amount of securities reflects the correction of a past overstatement of shares beneficially owned, due to a reporting misstatement on a prior Form 3 of the Reporting Person, filed with the Securities and Exchange Commission on May 10, 2022.

SEC source: 0001104659-25-015283 · tm257110-2_4seq1.xml · nonDerivative · entry 2

Skarke Michael · CIK 0001721029 · EVP, COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 389,074

F3 · kind: Represents shares to be withheld by Select Water Solutions, Inc., a Delaware corporation (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon vesting of the PSUs.

SEC source: 0001104659-25-015283 · tm257110-2_4seq1.xml · nonDerivative · entry 1

Skarke Michael · CIK 0001721029 · EVP, COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 394,942

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on February 24, 2022 to the reporting person for which the performance conditions were satisfied.

F2 · balance_after: The amount of securities reflects the correction of a past understatement of shares beneficially owned, due to a reporting misstatement on a prior Form 4 of the Reporting Person filed with the Securities and Exchange Commission on January 23, 2019.

SEC source: 0001104659-25-015285 · tm257110-4_4seq1.xml · nonDerivative · entry 2

Ortowski Cody · CIK 0001698465 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 342,993

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc., a Delaware corporation (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon vesting of the PSUs.

SEC source: 0001104659-25-015285 · tm257110-4_4seq1.xml · nonDerivative · entry 1

Ortowski Cody · CIK 0001698465 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 349,935

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on February 24, 2022 to the reporting person for which the performance conditions were satisfied.

SEC source: 0001104659-25-015282 · tm257110-1_4seq1.xml · nonDerivative · entry 2

Szymanski Brian · CIK 0001743069 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,381

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc., a Delaware corporation (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon vesting of the PSUs.

SEC source: 0001104659-25-015282 · tm257110-1_4seq1.xml · nonDerivative · entry 1

Szymanski Brian · CIK 0001743069 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,599

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on February 24, 2022 to the reporting person for which the performance conditions were satisfied.

SEC source: 0001104659-25-015284 · tm257110-3_4seq1.xml · nonDerivative · entry 3

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By B-29 Investments, LP

Disclosed balance after: 2,825,128

F3 · shares: The sale reported in this Form 4 was effected pursuant to the 10b5-1 trading plan adopted by the Reporting Person on November 11, 2024.

F3 · price: The sale reported in this Form 4 was effected pursuant to the 10b5-1 trading plan adopted by the Reporting Person on November 11, 2024.

F4 · price: This transaction was executed in multiple trades at prices ranging from $13.00 USD to $13.09 USD; the price reported above reflects the weighted average sale price. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F3 · balance_after: The sale reported in this Form 4 was effected pursuant to the 10b5-1 trading plan adopted by the Reporting Person on November 11, 2024.

SEC source: 0001104659-25-015284 · tm257110-3_4seq1.xml · nonDerivative · entry 2

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 422,950

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc., a Delaware corporation (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon vesting of the PSUs.

SEC source: 0001104659-25-015284 · tm257110-3_4seq1.xml · nonDerivative · entry 1

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 436,482

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on February 24, 2022 to the reporting person for which the performance conditions were satisfied.

SEC source: 0001104659-25-013078 · tm256617-1_4seq1.xml · nonDerivative · entry 2

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By B-29 Investments, LP

Disclosed balance after: 2,898,578

F2 · shares: The sale reported in this Form 4 was effected pursuant to the 10b5-1 trading plan adopted by the Reporting Person on November 11, 2024.

F2 · price: The sale reported in this Form 4 was effected pursuant to the 10b5-1 trading plan adopted by the Reporting Person on November 11, 2024.

F3 · price: This transaction was executed in multiple trades at prices ranging from $13.00 USD to $13.18 USD; the price reported above reflects the weighted average sale price. The reporting person undertakes to provide to Select Water Solutions, Inc., a Delaware corporation (the "Issuer"), any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2 · balance_after: The sale reported in this Form 4 was effected pursuant to the 10b5-1 trading plan adopted by the Reporting Person on November 11, 2024.

SEC source: 0001104659-24-116919 · tm2428201-1_4seq1.xml · nonDerivative · entry 3

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By B-29 Investments, LP

Disclosed balance after: 2,925,128

F2 · price: This transaction was executed in multiple trades at prices ranging from $13.5900 USD to $13.8600 USD; the price reported above reflects the weighted average sale price. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F3 · balance_after: Includes 2,825,444 shares of Class A Common Stock previously held by B-29 Holdings, LP which are now held by B-29 Investments, LP.

SEC source: 0001104659-24-116919 · tm2428201-1_4seq1.xml · nonDerivative · entry 2

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By B-29 Investments, LP

Disclosed balance after: 3,150,128

F1 · price: This transaction was executed in multiple trades at prices ranging from $13.8300 USD to $14.0250 USD; the price reported above reflects the weighted average sale price. The reporting person undertakes to provide to Select Water Solutions, Inc., a Delaware corporation (the "Issuer"), any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F3 · balance_after: Includes 2,825,444 shares of Class A Common Stock previously held by B-29 Holdings, LP which are now held by B-29 Investments, LP.

SEC source: 0001562180-24-006338 · primarydocument.xml · nonDerivative · entry 1

Lyons Michael James · CIK 0002011643 · EVP, CSO & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,641

F1 · kind: Represents shares to be withheld by Select Water Solutions, Inc. to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001562180-24-005630 · primarydocument.xml · derivative · entry 2

George Christopher Kile · CIK 0001817414 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,875

Underlying: Class A Common Stock · 2,781 shares

Expires not disclosed

F2 · derivative.exercise_price: Each performance share unit ("PSU") represents a contingent right to receive one share of Class A common stock of the Issuer, par value $0.01 per share, pursuant to the Select Water Solutions, Inc. 2024 Equity Incentive Plan. Between 0% and 200% of the target number of PSUs granted are eligible to vest based on continued employment and the Issuer's annualized absolute total shareholder return over the period from January 1, 2024 to December 31, 2026.

F2 · shares: Each performance share unit ("PSU") represents a contingent right to receive one share of Class A common stock of the Issuer, par value $0.01 per share, pursuant to the Select Water Solutions, Inc. 2024 Equity Incentive Plan. Between 0% and 200% of the target number of PSUs granted are eligible to vest based on continued employment and the Issuer's annualized absolute total shareholder return over the period from January 1, 2024 to December 31, 2026.

F2 · derivative.exercise_date: Each performance share unit ("PSU") represents a contingent right to receive one share of Class A common stock of the Issuer, par value $0.01 per share, pursuant to the Select Water Solutions, Inc. 2024 Equity Incentive Plan. Between 0% and 200% of the target number of PSUs granted are eligible to vest based on continued employment and the Issuer's annualized absolute total shareholder return over the period from January 1, 2024 to December 31, 2026.

F2 · derivative.expiration_date: Each performance share unit ("PSU") represents a contingent right to receive one share of Class A common stock of the Issuer, par value $0.01 per share, pursuant to the Select Water Solutions, Inc. 2024 Equity Incentive Plan. Between 0% and 200% of the target number of PSUs granted are eligible to vest based on continued employment and the Issuer's annualized absolute total shareholder return over the period from January 1, 2024 to December 31, 2026.

F2 · derivative.underlying_shares: Each performance share unit ("PSU") represents a contingent right to receive one share of Class A common stock of the Issuer, par value $0.01 per share, pursuant to the Select Water Solutions, Inc. 2024 Equity Incentive Plan. Between 0% and 200% of the target number of PSUs granted are eligible to vest based on continued employment and the Issuer's annualized absolute total shareholder return over the period from January 1, 2024 to December 31, 2026.

SEC source: 0001562180-24-005630 · primarydocument.xml · nonDerivative · entry 1

George Christopher Kile · CIK 0001817414 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 266,103

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest 1/3 on July 2, 2025, 1/3 on July 2, 2026, and 1/3 on July 2, 2027.

SEC source: 0001562180-24-004021 · primarydocument.xml · nonDerivative · entry 1

Skarke Michael · CIK 0001721029 · EVP, COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 380,981

F1 · price: This transaction was executed in multiple trades at prices ranging from $9.77 USD to $9.80 USD; the price reported above reflects the weighted average sale price. The reporting person undertakes to provide to Select Water Solutions, Inc., a Delaware corporation (the "Issuer"), any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001562180-24-003938 · primarydocument.xml · nonDerivative · entry 1

Fielder Robin H · CIK 0001759725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,457

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest on May 7, 2025.

SEC source: 0001562180-24-003937 · primarydocument.xml · nonDerivative · entry 1

WALL DOUGLAS JAMES · CIK 0001237816 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,302

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest on May 7, 2025.

SEC source: 0001562180-24-003936 · primarydocument.xml · nonDerivative · entry 1

THACKER TROY W · CIK 0001273204 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,063

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest on May 7, 2025.

SEC source: 0001562180-24-003935 · primarydocument.xml · nonDerivative · entry 1

FERNANDEZ-MORENO LUIS M · CIK 0001434786 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,784

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest on May 7, 2025.

SEC source: 0001562180-24-003934 · primarydocument.xml · nonDerivative · entry 1

Burnett Richard Alan · CIK 0001600737 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,710

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest on May 7, 2025.

SEC source: 0001562180-24-003933 · primarydocument.xml · nonDerivative · entry 1

Burleson Gayle · CIK 0001706715 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,346

F1 · kind: These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest on May 7, 2025.

SEC source: 0001562180-24-003851 · primarydocument.xml · nonDerivative · entry 1

Ibrahim Christina M · CIK 0001641402 · SVP, GC, CCO & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,120

F1 · kind: Represents shares to be withheld by the Issuer to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001104659-24-038047 · tm249633-3_4seq1.xml · nonDerivative · entry 2

George Christopher Kile · CIK 0001817414 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 260,541

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon the vesting of the PSUs.

SEC source: 0001104659-24-038047 · tm249633-3_4seq1.xml · nonDerivative · entry 1

George Christopher Kile · CIK 0001817414 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 263,878

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on March 5, 2021 to the reporting person for which the performance conditions were satisfied.

SEC source: 0001104659-24-038046 · tm249633-2_4seq1.xml · nonDerivative · entry 2

Skarke Michael · CIK 0001721029 · EVP, COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 394,402

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon the vesting of the PSUs.

SEC source: 0001104659-24-038046 · tm249633-2_4seq1.xml · nonDerivative · entry 1

Skarke Michael · CIK 0001721029 · EVP, COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 403,349

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on March 5, 2021 to the reporting person for which the performance conditions were satisfied.

SEC source: 0001104659-24-038050 · tm249633-5_4seq1.xml · nonDerivative · entry 2

Szymanski Brian · CIK 0001743069 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,086

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon the vesting of the PSUs.

SEC source: 0001104659-24-038050 · tm249633-5_4seq1.xml · nonDerivative · entry 1

Szymanski Brian · CIK 0001743069 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,226

F1 · security: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on March 5, 2021 to the reporting person for which the performance conditions were satisfied.

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on March 5, 2021 to the reporting person for which the performance conditions were satisfied.

SEC source: 0001104659-24-038044 · tm249633-1_4seq1.xml · nonDerivative · entry 2

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,676,733

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon the vesting of the PSUs.

SEC source: 0001104659-24-038044 · tm249633-1_4seq1.xml · nonDerivative · entry 1

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,723,654

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on March 5, 2021 to the reporting person for which the performance conditions were satisfied.

SEC source: 0001104659-24-038048 · tm249633-4_4seq1.xml · nonDerivative · entry 2

Ortowski Cody · CIK 0001698465 · EVP, Business Strategy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 333,498

F2 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the reporting person that arose upon the vesting of the PSUs.

SEC source: 0001104659-24-038048 · tm249633-4_4seq1.xml · nonDerivative · entry 1

Ortowski Cody · CIK 0001698465 · EVP, Business Strategy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 342,047

F1 · kind: The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on March 5, 2021 to the reporting person for which the performance conditions were satisfied.

SEC source: 0001104659-24-032029 · tm248271-8_4seq1.xml · nonDerivative · entry 2

Szymanski Brian · CIK 0001743069 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,304

SEC source: 0001104659-24-032028 · tm248271-7_4seq1.xml · nonDerivative · entry 1

George Christopher Kile · CIK 0001817414 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 253,565

F1 · kind: Represents shares to be withheld by the Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001104659-24-032026 · tm248271-6_4seq1.xml · nonDerivative · entry 1

Skarke Michael · CIK 0001721029 · EVP, COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 378,041

F1 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001104659-24-032029 · tm248271-8_4seq1.xml · nonDerivative · entry 1

Szymanski Brian · CIK 0001743069 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,384

F1 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001104659-24-032027 · tm248271-4_4seq1.xml · nonDerivative · entry 1

Ortowski Cody · CIK 0001698465 · EVP, Business Strategy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 306,942

F1 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001104659-24-032022 · tm248271-5_4seq1.xml · nonDerivative · entry 1

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,604,416

F1 · kind: Represents shares to be withheld by Select Water Solutions, Inc. (the "Issuer") to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.

SEC source: 0001104659-24-029520 · tm247412-12_4seq1.xml · nonDerivative · entry 1

Swyka Nick L · CIK 0001740784 · CFO & Senior VP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 272,140

F1 · price: This transaction was executed in multiple trades at prices ranging from $8.55 USD to $8.59 USD; the price reported above reflects the weighted average sale price. The reporting person undertakes to provide to Select Water Solutions, Inc., a Delaware corporation (the "Issuer"), any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001104659-24-028315 · tm247412-9_4seq1.xml · nonDerivative · entry 3

George Christopher Kile · CIK 0001817414 · SVP IR Corp Dev Sustainability

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 255,587

F3 · price: This transaction was executed in multiple trades at prices ranging from $8.625 USD to $8.6418 USD; the price reported above reflects the weighted average sale price. The reporting person undertakes to provide to Select Water Solutions, Inc., a Delaware corporation (the "Issuer"), any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0000950170-24-020521 · ownership.xml · nonDerivative · entry 1

Schmitz John · CIK 0001539285 · Director · President/CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By B-29 Holdings, LP

Disclosed balance after: 2,825,444

F1 · kind: On February 26, 2024, B-29 Holdings, LP transferred 1,500,000 shares to certain of its lenders and received credit for repayment under the credit agreement at a per share value of $8.70, which is the average of the opening and closing prices for WTTR on such date.

F1 · price: On February 26, 2024, B-29 Holdings, LP transferred 1,500,000 shares to certain of its lenders and received credit for repayment under the credit agreement at a per share value of $8.70, which is the average of the opening and closing prices for WTTR on such date.

SEC source: 0001104659-24-028312 · tm247412-6_4seq1.xml · nonDerivative · entry 3

Szymanski Brian · CIK 0001743069 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,936