KLX Energy Services Holdings, Inc.: 5%+ holders

As of November 6, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of KLX Energy Services Holdings, Inc. The largest reported stake is Cross Ocean Partners Management LP's, at 21.3%. 9 filings are on record since July 7, 2025 (Schedule 13D, October 6, 2026).

STEEL PARTNERS HOLDINGS L.P. also filed stake reports on 2 other companies ↓

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Key facts

• Filing 2026-10-06 · Reporting person: Cross Ocean GSS Master Fund LP · Sole voting: 0 · Shared voting: 8,358,619 · Sole dispositive: 0 · Shared dispositive: 8,358,619 · SCHEDULE 13D, 2026-10-06
• Filing 2026-10-06 · Reporting person: Whitebox Advisors LLC · Sole voting: 13,055,633 · Shared voting: 0 · Sole dispositive: 13,055,633 · Shared dispositive: 0 · SCHEDULE 13D, 2026-10-06
• Filing 2026-09-03 · Reporting person: Steel Partners Holdings L.P. · Sole voting: 0 · Shared voting: 1,907,172 · Sole dispositive: 0 · Shared dispositive: 1,907,172 · SCHEDULE 13D, 2026-09-03
• Filing 2026-08-14 · Reporting person: CastleKnight Master Fund LP · Sole voting: 0 · Shared voting: 691,727 · Sole dispositive: 0 · Shared dispositive: 691,727 · SCHEDULE 13G/A, 2026-08-14
• Filed 2026-05-15 · Holder: Cross Ocean Partners Management LP · Percent: 3.7% · SCHEDULE 13G/A

KLX Energy Services Holdings, Inc. has 9 Schedule 13D or 13G filings on record since 2025-07-07. 5 holders' latest filing reports 5% or more of common stock, par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

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More on KLX Energy Services Holdings, Inc. and the records around it.

KLX Energy Services Holdings, Inc. elsewhere on the record

• Leadership changes Oct 2026
• Who owns it

Companies that share a holder

• STEEL PARTNERS HOLDINGS L.P. also filed stake reports on 2 other companies: SPRUCE POWER HOLDING CORP (Sep 2026), GREEN DOT CORP (Mar 2026)
• Tontine Asset Associates, LLC also filed stake reports on 7 other companies: Nine Energy Service, Inc. (Aug 2026), IF Bancorp, Inc. (May 2026), Avadel Pharmaceuticals plc (Feb 2026)
• WHITEBOX ADVISORS LLC also filed stake reports on 9 other companies: HORNBECK OFFSHORE SERVICES, INC. (Sep 2026), Electra Battery Materials Corp (Aug 2026), MERCER INTERNATIONAL INC. (Aug 2026)

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What the Full Report on KLX Energy Services Holdings, Inc. covers

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2. Which Company This Is

3. What They Do, And How The Money Works

4. Who Runs It, And How To Reach Them

5. The Money: Funding, Valuation, Runway

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Voting and dispositive power, as filed

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The latest filing identifies KLX Energy Services Holdings, Inc. by CUSIP 48253L205 and gives its principal executive office as 3040 Post Oak Boulevard, 15th Floor, Houston, TX 77056 (SCHEDULE 13D, 2026-10-06).

Source of funds (Item 3)

The information set forth in Items 4 and 6 of this Schedule 13D is incorporated herein by reference.Cross Ocean Partners Management LP, SCHEDULE 13D, 2026-10-06

The information set forth in Items 4 and 6 of this Schedule 13D is incorporated herein by reference. As further disclosed in Item 6 of this Schedule 13D, in connection with the consummation of the Refinancing on March 12, 2025, the Company issued to the Whitebox Funds an aggregate $50,000,000 principal amount of the Company's Senior Secured Floating Rate Cash / PIK Notes due 2030 (the "2030 Notes") and warrants to purchase an aggregate 511,110 shares of Common Stock at an exercise price of $0.01 per share (the "Warrants").Whitebox Advisors LLC, SCHEDULE 13D, 2026-10-06

The aggregate purchase price of the 1,907,172 Shares owned directly by SP Strategic Holdings is approximately $2,920,401, including brokerage commissions. Such Shares were acquired with SP Strategic Holdings' cash on hand.Steel Partners Holdings L.P., SCHEDULE 13D, 2026-09-03

Purpose of Transaction (Item 4)

Geveran Investments Limited

Item 4 of the Schedule 13D is hereby amended and supplemented as follows: Since June 20, 2025 and through and including July 1, 2025, the Reporting Persons sold, in the aggregate, 317,461 shares of the Issuer. As a result of such sales, the Reporting Persons ceased to beneficially own more than 5% of the Common Stock.Item 4 of the SCHEDULE 13D/A filed 2025-07-07

Cross Ocean Partners Management LP

The information set forth in Item 3 and Item 6 of this Schedule 13D is incorporated herein by reference. The Reporting Persons acquired the securities reported herein for investment purposes. The Reporting Persons will continuously review their investment in Issuer, and depending on market, economic and industry conditions, their continuing evaluation of the business, strategies, prospects, management, governance, operations, performance, financial matters, capital structure and prospects, market positions, strategic and other transactions of the Issuer, alternative investment opportunities and changes in applicable law and/or regulations and all other factors that may be deemed relevant, the Reporting Persons may dispose of or acquire additional securities of the Issuer. Pursuant to the Backstop Agreement (as described in Item 6), as the Reporting Persons beneficially own more than 10% of the Issuer's outstanding Common Stock following the closing of the Backstop Exchange, they have the right to designate a Designated Director for appointment to the Issuer's board of directors (the "Board"). The Reporting Persons have designated a candidate as its Designated Director that is independent from the Reporting Persons and the Issuer, whose appointment the Reporting Persons expect to be disclosed publicly later by the Issuer with the SEC. The Reporting Persons have engaged in, and intend to continue to engage in, communications with the Issuer's management and the Board, other …The first part of Item 4 of the SCHEDULE 13D filed 2026-10-06; the filing has the rest

Steel Partners Holdings L.P.

On August 24, 2026, the Issuer distributed to all holders of record of Shares as of 5:00 p.m., New York City time, on August 21, 2026 (the "Record Date") one transferable subscription right (each, a "Right") for each Share held as of the Record Date (the "Rights Offering"). Each Right entitles the holder thereof, subject to certain limitations, to purchase 3.885 Shares, rounded down to the nearest whole Share, at a subscription price of $1.49 per share (the "Subscription Price"); provided, that any holder that exercises its basic subscription rights in full will have an over-subscription privilege to purchase additional Shares that remain unsubscribed as of September 23, 2026 (the "Expiration Date"), subject to certain limitations. The Issuer reserves the right, in its sole and absolute discretion, to amend, extend or cancel the Rights Offering at any time for any reason prior to the Expiration Date. If the Rights Offering is canceled, all subscription payments received by the subscription agent will be returned, without interest or penalty, as soon as practicable to those holders who subscribed for Shares in the Rights Offering. In connection with the Rights Offering, on August 24, 2026, SP Strategic Holdings received 766,118 rights. SP Strategic Holdings purchased 1,086,121 Rights following the Record Date. Accordingly, as of the date hereof, SP Strategic Holdings holds 1,852,239 Rights and is entitled to purchase an aggregate of 7,195,948 Shares at the Subscription …The first part of Item 4 of the SCHEDULE 13D filed 2026-09-03; the filing has the rest

Whitebox Advisors LLC

The information set forth in Item 6 of this Schedule 13D is incorporated herein by reference. Backstop Agreement On August 6, 2026, the Company entered into a Rights Offering Backstop Agreement (the "Backstop Agreement") with the holders of the 2030 Notes (the "Backstop Parties"), including the Reporting Person on behalf of the Whitebox Funds, in connection with the Company's $125.0 million rights offering (the "Rights Offering"), to purchase each Backstop Party's individual backstop commitment, for an aggregate of $94.0 million. Pursuant to the Rights Offering, the Company distributed to all eligible holders of record of its Common Stock, as of 5:00 p.m., New York City time on August 21, 2026, at no cost and on a pro rata basis, transferable subscription rights to purchase shares of Common Stock at a subscription price of $1.49 per share (the "Subscription Price"). Pursuant to the terms of the Backstop Agreement, and subject to the satisfaction of certain conditions thereunder, the Backstop Parties committed, severally and not jointly, to purchase from the Company, at the Subscription Price, any unsubscribed shares in the Rights Offering following the expiration of the Rights Offering, through an exchange of the Backstop Parties' 2030 Notes for such shares, whereby (x) the exchange price for any exchanged 2030 Notes should be 100% of the principal amount thereof and (y) any accrued and unpaid interest on any exchanged 2030 Notes should also be exchanged for additional …The first part of Item 4 of the SCHEDULE 13D filed 2026-10-06; the filing has the rest

Timeline

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Questions about who owns KLX Energy Services Holdings, Inc.

Who owns KLX Energy Services Holdings, Inc.?

On this page, 5 holders' latest ownership filings report 5% or more of KLX Energy Services Holdings, Inc.: Cross Ocean Partners Management LP (21.3%, Schedule 13D, filed 2026-10-06), Whitebox Advisors LLC (12.4%, Schedule 13D, filed 2026-10-06), Jeffrey L. Gendell (9.5%, Schedule 13G/A, filed 2025-08-14), Steel Partners Holdings L.P. (8.9%, Schedule 13D, filed 2026-09-03) and Cross Ocean Partners Management LP (5.9%, Schedule 13G, filed 2026-03-13).

Who are the largest shareholders of KLX Energy Services Holdings, Inc.?

By the share each holder's latest filing reports, the largest holders of KLX Energy Services Holdings, Inc. on this page are Cross Ocean Partners Management LP (21.3%), Whitebox Advisors LLC (12.4%) and Jeffrey L. Gendell (9.5%).

When did Cross Ocean Partners Management LP buy into KLX Energy Services Holdings, Inc.?

The filings give report dates, not purchase dates. The earliest filing from Cross Ocean Partners Management LP on this page is the Schedule 13G, filed 2026-03-13, reporting 5.9%; its latest, Schedule 13D filed 2026-10-06, reports 21.3%.

Is this an audit or a full list?

Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 9 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

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