Hornbeck director Glassman resigns from board

A board director resigned effective September 1, 2026, and will no longer file Section 16 Forms 4 and 5 for HLX equity transactions.

Rhea-AI Filing Summary

HELIX ENERGY SOLUTIONS GROUP INC (HLX), now referred to as Hornbeck Offshore Services, Inc. in this context, reports that director Diana Glassman notified the company of her resignation from its board on August 31, 2026, effective September 1, 2026.

After this effective date, she is no longer subject to Section 16 reporting for transactions in the company’s equity securities and will cease filing Forms 4 and 5 related to those securities.

Key Figures

Resignation notice date: August 31, 2026 Resignation effective date: September 1, 2026 Section 16 status: No longer subject after September 1, 2026

3 metrics

Resignation notice date August 31, 2026 Date on which Diana Glassman gave notice of resignation from the board

Resignation effective date September 1, 2026 Effective date of Diana Glassman’s resignation from the board

Section 16 status No longer subject after September 1, 2026 Section 16 reporting obligation for transactions in issuer equity securities ends after resignation

Key Terms

Section 16, Form 4, Form 5

3 terms

Section 16 regulatory

"no longer subject to Section 16 in connection with her transactions"

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

Form 4 regulatory

"will no longer report any such transactions on Form 4 or Form 5"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 5 regulatory

"will no longer report any such transactions on Form 4 or Form 5"

A Form 5 is an annual report filed with the U.S. securities regulator by company insiders—such as officers, directors and large shareholders—to disclose any equity transactions or holdings that were missed or deferred during the year. Think of it as an end-of-year ledger adjustment that shows final insider ownership and late-reported trades; investors use it to verify insider confidence, detect possible conflicts of interest, and spot unusual patterns in insiders’ buying or selling.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What board change does this Form 4 report for HLX?

It reports that Diana Glassman resigned from the board of the company described as Hornbeck Offshore Services, Inc. (formerly Helix Energy Solutions Group, Inc.), effective September 1, 2026, after giving notice on August 31, 2026.

When did director Diana Glassman resign from the HLX board?

Diana Glassman’s resignation from the board became effective on September 1, 2026, following notice she gave on August 31, 2026.

How does this resignation affect Section 16 reporting for HLX stock?

Because of the resignation effective September 1, 2026, Diana Glassman is no longer subject to Section 16 for transactions in the company’s equity securities and will stop reporting them on Form 4 or Form 5.

Does this Form 4 for HLX report any share transactions?

No. The Form 4 contains no reported transactions in the issuer’s equity securities; it only explains that, following her resignation, the reporting person will no longer file Forms 4 or 5.

Why is Hornbeck Offshore Services, Inc. mentioned in relation to HLX?

The document identifies the issuer as Hornbeck Offshore Services, Inc., described as formerly named Helix Energy Solutions Group, Inc., and clarifies that the resignation and Section 16 status relate to this issuer’s equity securities.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/02/2026 - 04:39 PM EDT Accepted by SEC EDGAR 09/02/2026 - 04:38 PM EDT Learn about SEC filing dates

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^*

Glassman Diana

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

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

Explanation of Responses:

Remarks:

On August 31, 2026, the reporting person gave notice to Hornbeck Offshore Services, Inc. (formerly named Helix Energy Solutions Group, Inc.) (the "Issuer") resigning from the board of directors of the Issuer. Such resignation was effective as of September 1, 2026. As a result, the reporting person is no longer subject to Section 16 in connection with her transactions in the equity securities of the Issuer and therefore will no longer report any such transactions on Form 4 or Form 5.

	/s/ Diana Glassman	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)