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Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )



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Preliminary Proxy Statement


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Definitive Proxy Statement


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C1234567890 ENDORSEMENT_LINE______________SACKPACK_____________ MMMMMM MR A SAMPLEDESIGNATION (IF ANY) OnlineADD 1 Go to or scan the 000001 ADD 2 QR code — login details are located in theADD 3MMMMMMMMM ADD ADD 5 4 shaded bar below.ADD 6Stockholder Meeting Notice 1234 5678 9012 345 Important Notice Regarding the Availability of Proxy Materials for the KLX Energy Services Holdings, Inc. Stockholder Meeting to be Held on May 9, 2024Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual stockholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The Proxy Statement and 2023 Annual Report to stockholders are available Online Access — View your proxy materials and vote.Step 1: Go to 2: Click on the icon on the right to view meeting materials.Step 3: Return to the window and follow the instructions on the screen to log in. Step 4: Make your selections as instructed on each screen for your delivery preferences.Step 5: Vote your shares.When you go online, you can also help the environment by consenting to receive electronic delivery of future materials.Obtaining a Copy of the Proxy Materials – If you want to receive a copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. Please make your request as instructed on the reverse side on or before April 29, 2024 to facilitate timely delivery. Proxy Materials Available to View or Receive: 1. Notice of Annual Meeting of Stockholders, 2. Proxy Statement and Proxy Card, 3. 2023 Annual Report to Stockholders2 N O T C O Y +03YCDB


Stockholder Meeting NoticeKLX Energy Services Holdings, Inc.’s Annual Meeting of Stockholders will be held on May 9, at 9:00 a.m. Central Time, virtually via the Internet at To access the virtual meeting, you must have the information that is printed in the shaded bar located on the reverse side of this form.Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations.The Board of Directors unanimously recommends a vote FOR Proposals 1, 3 and 5 – 7, FOR the nominees listed in Proposal 2, and for 1 YEAR on Proposal 4: 1. To approve an amendment to the Amended and Restated Certificate of Incorporation of the Company (the “Amended and Restated Certificate of Incorporation”) to declassify the Board; 2. To elect two Class III Directors, each for a term that expires at the 2027 Annual Meeting of Stockholders (or until the 2025 Annual Meeting of Stockholders if Proposal 1 is approved and the Declassification Amendment (as defined in the enclosed proxy statement) is filed and becomes effective as described in the enclosed proxy statement) and until such director’s successor is duly elected or qualified; 01—Thomas P. McCaffrey 02—Corbin J. Robertson, Jr. 3. To approve, on an advisory, non-binding basis, the compensation of the Company’s named executive officers; 4. To approve, on an advisory, non-binding basis, the frequency of future advisory votes on the compensation of the Company’s named executive officers; 5. To approve an amendment to the Amended and Restated Certificate of Incorporation to eliminate the supermajority voting requirement to amend the Company’s bylaws; 6. To approve an amendment to the Amended and Restated Certificate of Incorporation to eliminate the supermajority voting requirement to amend the Company’s certificate of incorporation; and 7. To ratify the selection of Deloitte & Touche LLP to serve as the Company’s independent auditor for the fiscal year ending December 31, 2024. Note: To take action as appropriate upon such other matters that may be properly presented at the Annual Meeting or at any and all adjournments or postponements thereof.PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must go online or request a paper copy of the proxy materials to receive a proxy card. Here’s how to order a copy of the proxy materials and select delivery preferences: Current and future delivery requests can be submitted using the options below.If you request an email copy, you will receive an email with a link to the current meeting materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a copy of the proxy materials.— Internet – Go to— Phone – Call us free of charge at 1-866-641-4276.— Email – Send an email to with “Proxy Materials KLX Energy Services” in the subject line. Include your full name and address, plus the number located in the shaded bar on the reverse side, and state that you want a paper copy of the meeting materials. To facilitate timely delivery, requests for a paper copy of proxy materials must be received by April 29, 2024.