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HORNBECK OFFSHORE SERVICES, INC.

For the period ended Sep 30, 2026. Filed Nov 9, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 9, 2026

HOS$5.38+1.3%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2026

OR

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 001-32936

HORNBECK OFFSHORE SERVICES, INC.

(Exact name of registrant as specified in its charter)

Delaware95-3409686
(State or other jurisdiction ofincorporation or organization)(I.R.S. EmployerIdentification No.)
103 Northpark Boulevard, Suite 300Covington, Louisiana70433
(Address of principal executive offices)(Zip Code)

(985)727-2000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $0.00001 per shareHOSNew York Stock Exchange

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer xAccelerated filer ☐
Non-accelerated filer ☐Smaller reporting company ☐
Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No x

The number of outstanding shares of Common Stock as of November 6, 2026 is 221,971,035 shares (excluding shares issuable upon exercise of Jones Act Warrants).

FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 2026

TABLE OF CONTENTS

Page
Glossary2
Cautionary Note Regarding Forward-Looking Statements5
Explanatory Note Concerning Effect of Accounting Acquirer8
PART I—FINANCIAL INFORMATION9
Item 1—Financial Statements9
Item 2—Management’s Discussion and Analysis of Financial Condition and Results of Operations36
Item 3—Quantitative and Qualitative Disclosures About Market Risk53
Item 4—Controls and Procedures53
PART II—OTHER INFORMATION54
Item 1—Legal Proceedings54
Item 1A—Risk Factors54
Item 2—Unregistered Sales of Equity Securities and Use of Proceeds54
Item 3—Defaults Upon Senior Securities54
Item 4—Mine Safety Disclosures54
Item 5—Other Information55
Item 6—Exhibits57
SIGNATURES60
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.