KLX Energy (KLXE) stake of 691,727 shares reported by CastleKnight group

Rhea-AI Filing Summary

KLX Energy Services Holdings, Inc. has a group of affiliated investment entities led by CastleKnight Master Fund LP reporting beneficial ownership of 691,727 shares of its common stock. This stake represents 3.5% of the outstanding common stock as of the reporting date.

The shares are held with no sole voting or dispositive power by any reporting person; instead, each reports shared power over all 691,727 shares for both voting and disposition. The filing is a Schedule 13G/A (Amendment No. 2), indicating continued passive ownership below 5% by CastleKnight entities and Aaron Weitman, each of whom disclaims beneficial ownership beyond pecuniary interest.

Key Figures

Shares beneficially owned: 691,727 shares Percent of KLXE common stock: 3.5% Sole voting power: 0 shares +3 more

6 metrics

Shares beneficially owned 691,727 shares Beneficially owned by each reporting person as disclosed in Item 4(a)

Percent of KLXE common stock 3.5% Reported ownership percentage for each CastleKnight entity and Aaron Weitman

Sole voting power 0 shares Each reporting person reports no sole power to vote KLXE shares

Shared voting power 691,727 shares Each reporting person reports shared power to vote all beneficially owned shares

Sole dispositive power 0 shares No reporting person has sole power to dispose of KLXE shares

Shared dispositive power 691,727 shares Each reporting person has shared power to dispose of all reported shares

Key Terms

beneficial ownership, shared voting power, dispositive power, parent holding company, +1 more

5 terms

beneficial ownership financial

"Comments accompanying signature: * Each Reporting Person disclaims beneficial ownership of the reported securities"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

shared voting power financial

"6 | Shared Voting Power 691,727.00 7 | Sole Dispositive Power 0.00 8 | Shared Dispositive Power 691,727.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

dispositive power financial

"8 | Shared Dispositive Power 691,727.00 9 691,727.00 10 11 3.5 % 12"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

parent holding company financial

"If a parent holding company has filed this schedule, pursuant to (ii)(G), so indicate under Item 3(g)"

pecuniary interest financial

"disclaims beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein"

FAQ

How many KLXE shares are reported as beneficially owned by CastleKnight Master Fund?

CastleKnight Master Fund LP reports beneficial ownership of 691,727 KLXE common shares. This entire amount is held with shared voting and dispositive power, with no sole authority reported by the fund or related entities.

What percentage of KLXE common stock do the CastleKnight and Weitman filers own?

Each reporting person, including CastleKnight entities and Aaron Weitman, reports owning 3.5% of KLXE common stock. This percentage is based on 691,727 shares beneficially owned as disclosed in the Schedule 13G/A filing.

Do the CastleKnight filers have sole or shared voting power over KLXE shares?

The reporting persons have 0 shares with sole voting power and 691,727 shares with shared voting power. They also report the same split for dispositive power, with all authority characterized as shared rather than individual.

Why is the CastleKnight KLXE position reported on Schedule 13G/A instead of 13D?

The position is reported on Schedule 13G/A (Amendment No. 2), which is used for certain passive or institutional holders. The filers disclose 3.5% ownership, below 5%, and characterize their interest through beneficial ownership and shared powers.

Who are the reporting persons in the KLXE Schedule 13G/A filing?

The reporting persons are CastleKnight Master Fund LP, CastleKnight Fund GP LLC, CastleKnight Management LP, CastleKnight Management GP LLC, Weitman Capital LLC, and Aaron Weitman. Each reports beneficial ownership of the same 691,727 KLXE shares with shared powers.

What disclaimer do the CastleKnight and Weitman filers make about their KLXE holdings?

Each reporting person disclaims beneficial ownership of the KLXE securities except to the extent of pecuniary interest. They also state that the report shall not be deemed an admission of beneficial ownership for Section 16 or other purposes.

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Available on EDGAR 08/14/2026 - 05:04 PM Accepted by SEC EDGAR 08/14/2026 - 05:04 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

KLX Energy Services Holdings, Inc.

(Name of Issuer)

Common Stock, $0.01 Par Value

(Title of Class of Securities)

48253L205

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 48253L205

1

Names of Reporting Persons

CastleKnight Master Fund LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 691,727.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 691,727.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

691,727.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.5 %

12

Type of Reporting Person (See Instructions)

PN

SCHEDULE 13G

CUSIP Number(s): 48253L205

1

Names of Reporting Persons

CastleKnight Fund GP LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 691,727.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 691,727.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

691,727.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.5 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 48253L205

1

Names of Reporting Persons

CastleKnight Management LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 691,727.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 691,727.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

691,727.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.5 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP Number(s): 48253L205

1

Names of Reporting Persons

CastleKnight Management GP LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 691,727.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 691,727.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

691,727.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.5 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 48253L205

1

Names of Reporting Persons

Weitman Capital LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

NEW JERSEY

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 691,727.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 691,727.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

691,727.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.5 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 48253L205

1

Names of Reporting Persons

Aaron Weitman

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 691,727.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 691,727.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

691,727.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.5 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: KLX Energy Services Holdings, Inc.
(b)	Address of issuer's principal executive offices: 3040 Post Oak Boulevard, 15th Floor, Houston, TX 77056
Item 2.
(a)	Name of person filing: CastleKnight Master Fund LP CastleKnight Fund GP LLC CastleKnight Management LP CastleKnight Management GP LLC Weitman Capital LLC Aaron Weitman
(b)	Address or principal business office or, if none, residence: CastleKnight Master Fund LP Maples Corporate Services Limited P.O. Box 309 Ugland House Grand Cayman KY1-1104 Cayman Islands CastleKnight Fund GP LLC 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America CastleKnight Management LP 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America CastleKnight Management GP LLC 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America Weitman Capital LLC c/o Aaron Weitman c/o CastleKnight Management LP 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America Aaron Weitman c/o CastleKnight Management LP 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America
(c)	Citizenship: CastleKnight Master Fund LP - Cayman Islands CastleKnight Fund GP LLC - Delaware CastleKnight Management LP - Delaware CastleKnight Management GP LLC - Delaware Weitman Capital LLC - New Jersey Aaron Weitman - United States of America
(d)	Title of class of securities: Common Stock, $0.01 Par Value
(e)	CUSIP No.: 48253L205
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: CastleKnight Master Fund LP - 691,727 CastleKnight Fund GP LLC - 691,727 CastleKnight Management LP - 691,727 CastleKnight Management GP LLC - 691,727 Weitman Capital LLC - 691,727 Aaron Weitman - 691,727
(b)	Percent of class: CastleKnight Master Fund LP - 3.5% CastleKnight Fund GP LLC - 3.5% CastleKnight Management LP - 3.5% CastleKnight Management GP LLC - 3.5% Weitman Capital LLC - 3.5% Aaron Weitman - 3.5%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: CastleKnight Master Fund LP - 0 CastleKnight Fund GP LLC - 0 CastleKnight Management LP - 0 CastleKnight Management GP LLC - 0 Weitman Capital LLC - 0 Aaron Weitman - 0
	(ii) Shared power to vote or to direct the vote: CastleKnight Master Fund LP - 691,727 CastleKnight Fund GP LLC - 691,727 CastleKnight Management LP - 691,727 CastleKnight Management GP LLC - 691,727 Weitman Capital LLC - 691,727 Aaron Weitman - 691,727
	(iii) Sole power to dispose or to direct the disposition of: CastleKnight Master Fund LP - 0 CastleKnight Fund GP LLC - 0 CastleKnight Management LP - 0 CastleKnight Management GP LLC - 0 Weitman Capital LLC - 0 Aaron Weitman - 0
	(iv) Shared power to dispose or to direct the disposition of: CastleKnight Master Fund LP - 691,727 CastleKnight Fund GP LLC - 691,727 CastleKnight Management LP - 691,727 CastleKnight Management GP LLC - 691,727 Weitman Capital LLC - 691,727 Aaron Weitman - 691,727
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. Please see Exhibit B attached hereto.
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

CastleKnight Master Fund LP

Signature:	By: CastleKnight Fund GP LLC, its general partner, By: Weitman Capital LLC, its managing member, By: /s/ Aaron Weitman
Name/Title:	Aaron Weitman, Manager
Date:	08/14/2026

CastleKnight Fund GP LLC

Signature:	By: Weitman Capital LLC, its managing member, By: /s/ Aaron Weitman
Name/Title:	Aaron Weitman, Manager
Date:	08/14/2026

CastleKnight Management LP

Signature:	By: CastleKnight Management GP LLC, its general partner, By: Weitman Capital LLC, its managing member, By: /s/ Aaron Weitman
Name/Title:	Aaron Weitman, Manager
Date:	08/14/2026

CastleKnight Management GP LLC

Signature:	/s/ Aaron Weitman
Name/Title:	Aaron Weitman, Manager
Date:	08/14/2026

Weitman Capital LLC

Signature:	/s/ Aaron Weitman
Name/Title:	Aaron Weitman, Manager
Date:	08/14/2026

Aaron Weitman

Signature:	/s/ Aaron Weitman
Name/Title:	Aaron Weitman
Date:	08/14/2026

Comments accompanying signature: * Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Exhibit Information

Exhibit A - Joint Filing Agreement Exhibit B - Control Person Identification