Sec Form 4 Filing - Porter Stuart D @ KLX Energy Services Holdings, Inc. - 2024-03-11

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Porter Stuart D 2. Issuer Name and Ticker or Trading Symbol KLX Energy Services Holdings, Inc. [ KLXE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 185 DARTMOUTH STREET, 7TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 03/11/2024 (Street) BOSTON, MA02116 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/11/2024 J( 1 ) 170,421 D 0 ( 1 ) I See footnotes ( 2 ) ( 4 ) ( 5 ) Common Stock 1,891,063 ( 1 ) I See footnotes ( 3 ) ( 4 ) ( 5 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Porter Stuart D 185 DARTMOUTH STREET 7TH FLOOR BOSTON, MA02116 X Denham Capital Management GP LLC 185 DARTMOUTH STREET 7TH FLOOR BOSTON, MA02116 X Denham Capital Management LP 185 DARTMOUTH STREET 7TH FLOOR BOSTON, MA02116 X Denham IV Continuation GP LLC 185 DARTMOUTH STREET 7TH FLOOR BOSTON, MA02116 X Denham IV Continuation Fund GP LP 185 DARTMOUTH STREET 7TH FLOOR BOSTON, MA02116 X Denham IV Continuation Fund LP 185 DARTMOUTH STREET 7TH FLOOR BOSTON, MA02116 X Greene's Investment Holdings LLC 185 DARTMOUTH STREET 7TH FLOOR BOSTON, MA02116 X Signatures /s/ Stuart D. Porter 03/13/2024 Signature of Reporting Person Date Denham Capital Management GP LLC, By: /s/ Anthony Fiore, Chief Legal Officer 03/13/2024 Signature of Reporting Person Date Denham Capital Management LP, By: /s/ Anthony Fiore, Chief Legal Officer 03/13/2024 Signature of Reporting Person Date Denham IV Continuation GP LLC, By: /s/ Anthony Fiore, Managing Director 03/13/2024 Signature of Reporting Person Date Denham IV Continuation Fund GP LP, By: Denham IV Continuation GP LLC, its General Partner, By: /s/ Anthony Fiore, Managing Director 03/13/2024 Signature of Reporting Person Date Denham IV Continuation Fund LP, By: Denham IV Continuation Fund GP LP, its General Partner, By: Denham IV Continuation GP LLC, its General Partner, By: /s/ Anthony Fiore, Managing Director 03/13/2024 Signature of Reporting Person Date Greene's Investment Holdings LLC, By: /s/ Cody Nicholson, Secretary 03/13/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On March 11, 2024, Greene's Holding Corporation ("GHC") made an in-kind distribution of an aggregate 800,962 shares, including 630,541 shares that were distributed to Greene's Investment Holdings LLC ("GIH"), which transfer was exempt from Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act") pursuant to Rule 16a-13 thereunder. ( 2 )These shares are held directly by GHC. ( 3 )These shares are held directly by GIH. ( 4 )GIH is the majority owner of GHC. Denham IV Continuation Fund LP ("Denham IV Fund") is the sole owner of GIH. Denham IV Continuation Fund GP LP ("Denham IV Fund GP") is the general partner of Denham IV Fund. Denham IV Continuation GP LLC ("Denham IV GP") is the general partner of Denham IV Fund GP. Denham Capital Management LP ("DCM") serves as investment adviser to Denham IV Fund. Denham Capital Management GP LLC ("DCM GP") is the general partner of DCM. Stuart D. Porter is the sole owner of DCM GP and the controlling member of Denham IV GP, and serves as Chief Executive Officer and Chief Investment Officer of DCM. ( 5 )GIH, Denham IV Fund, Denham IV Fund GP, Denham IV GP, DCM, DCM GP and Mr. Porter are, collectively, the "Reporting Persons." Because of the relationship among GHC and the Reporting Persons, each of the Reporting Persons may be deemed to be the beneficial owner of shares held directly by GHC. Because of the relationship among each of the Reporting Persons, each of the Reporting Persons may be deemed to be the beneficial owner of the shares held directly by GIH. Each of the Reporting Persons disclaims beneficial ownership of these securities in excess of its or his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Exchange Act, or for any other purpose.

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