SEC Form 4

FORM 4		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 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
X	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
	Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person* Staffeldt Erik (Last) (First) (Middle) 3505 WEST SAM HOUSTON PKWY NORTH SUITE 400 (Street) HOUSTON TEXAS 77043 (City) (State) (Zip) UNITED STATES (Country)	2. Issuer Name and Ticker or Trading Symbol HORNBECK OFFSHORE SERVICES, INC. [ HOS ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) X Other (specify below) FORMER EVP & CFO
	2a. Foreign Trading Symbol
	3. Date of Earliest Transaction (Month/Day/Year) 09/01/2026	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person
	4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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
Performance Share Units	(1)(2)	09/01/2026		M			94,845	(1)(2)	(1)(2)	Common Stock	94,845	$0	0	D
Performance Share Units	(1)(3)	09/01/2026		M			105,998	(1)(3)	(1)(3)	Common Stock	105,998	$0	0	D
Performance Share Units	(1)(4)	09/01/2026		M			212,838	(1)(4)	(1)(4)	Common Stock	212,838	$0	0	D
Restricted Stock Units	(1)(5)	09/01/2026		M			21,077	(1)(5)	(1)(5)	Common Stock	21,077	$0	0	D
Restricted Stock Units	(1)(6)	09/01/2026		M			52,933	(1)(6)	(1)(6)	Common Stock	52,933	$0	0	D
Restricted Stock Units	(1)(7)	09/01/2026		M			125,199	(1)(7)	(1)(7)	Common Stock	125,199	$0	0	D

Explanation of Responses:

1. Pursuant to the terms of the Agreement and Plan of Merger, dated as of April 22, 2026, by and among Helix Energy Solutions Group, Inc. Odyssey Sub, Inc., Hercules Sub LLC and Hornbeck Offshore Services, Inc. (the "Merger Agreement"), each award of performance share units (a "Parent PSU Award") and each award of restricted stock units (a "Parent RSU Award") owned by the reporting person as of the Effective Time was canceled in exchange for an amount in cash equal to the number of shares of Parent Common Stock subject to such Parent PSU Award or Parent RSU Award multiplied by the closing price of a share of Parent Common Stock on the NYSE on the Trading Day immediately prior to the Closing Date, which was $10.30.

2. Each performance share unit subject to the Parent PSU Award granted on January 1, 2024 ("2024 Parent PSU Award") pursuant to the Parent's 2005 Long-Term Incentive Plan (as amended, the "LTIP") represented the contingent right to receive one share of Parent Common Stock subject to the terms of the LTIP and the 2024 Parent PSU Award agreement, subject to the level of achievement with respect to the applicable performance criteria. On August 31, 2026, the Compensation Committee determined that 150.0% of the 2024 Parent PSU Award was earned by the reporting person.

3. Each performance share unit subject to the Parent PSU Award granted on January 1, 2025 ("2025 Parent PSU Award") pursuant to the LTIP represented the contingent right to receive one share of Parent Common Stock subject to the terms of the LTIP and the 2025 Parent PSU Award agreement, subject to the level of achievement with respect to the applicable performance criteria. On August 31, 2026, the Compensation Committee determined that 133.5% of the 2025 Parent PSU Award was earned by the reporting person.

4. Each performance share unit subject to the Parent PSU Award granted on January 1, 2026 ("2026 Parent PSU Award") pursuant to the LTIP represented the contingent right to receive one share of Parent Common Stock subject to the terms of the LTIP and the 2026 Parent PSU Award agreement, subject to the level of achievement with respect to the applicable performance criteria. On August 31, 2026, the Compensation Committee determined that 170.0% of the 2026 Parent PSU Award was earned by the reporting person.

5. Each restricted stock unit subject to the Parent RSU Award granted on January 1, 2024 ("2024 Parent RSU Award") represented the contingent right to receive one share of Parent Common Stock. Forfeiture restrictions lapsed with respect to one-third of the 2024 Parent RSU Award on January 1, 2025, forfeiture restrictions with respect to an additional one-third of the award lapsed on January 1, 2026 and, pursuant to the Merger Agreement, the remaining forfeiture restrictions with respect to the award lapsed on September 1, 2026.

6. Each restricted stock unit subject to the Parent RSU Award granted on January 1, 2025 ("2025 Parent RSU Award") represented the contingent right to receive one share of Parent Common Stock. Forfeiture restrictions lapsed with respect to one-third of the 2025 Parent RSU Award on January 1, 2026 and, pursuant to the terms of the Merger Agreement, the remaining forfeiture restrictions with respect to the award lapsed on September 1, 2026.

7. Each restricted stock unit subject to the Parent RSU Award granted on January 1, 2026 ("2026 Parent RSU Award") represented the contingent right to receive one share of Parent Common Stock. Pursuant to the terms of the Merger Agreement, all forfeiture restrictions with respect to the 2026 Parent RSU Award lapsed on September 1, 2026.

Remarks:

Following the transactions contemplated by the Merger Agreement, the reporting person is no longer subject to Section 16 in connection with his transactions in the equity securities of Hornbeck Offshore Services, Inc. (formerly named Helix Energy Solutions Group, Inc.) and therefore will no longer report any such transactions on Form 4 or Form 5. Capitalized terms used herein without definition have the meanings ascribed to them in the Merger Agreement.

	/s/ Erik Staffeldt	09/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)