Hornbeck Offshore ex-director plans 13K-share sale

Former director Diana A. Glassman filed a Rule 144 notice to sell 13,014 HLX common shares through Fidelity.

Rhea-AI Filing Summary

HORNBECK OFFSHORE SERVICES, INC. (HLX) is the issuer for a Rule 144 notice filed on behalf of former director Diana A. Glassman. The notice covers planned sales of 13,014 shares of common stock, with an aggregate market value of $125,455.91, to be sold through Fidelity Brokerage Services LLC on the NYSE.

Key Figures

Shares to be sold: 13,014 shares Aggregate market value of shares to be sold: $125,455.91 Shares sold in past three months: 14,041 shares +3 more

6 metrics

Shares to be sold 13,014 shares Common stock covered by the Rule 144 notice

Aggregate market value of shares to be sold $125,455.91 Market value of 13,014 HLX common shares referenced in the notice

Shares sold in past three months 14,041 shares Common stock sold on September 2, 2026 by Diana A. Glassman

Proceeds from recent sale $145,491.61 Total value of 14,041 HLX common shares sold on September 2, 2026

Acquisition date of restricted stock December 7, 2023 Date the 13,014 restricted shares vested as compensation

Planned sale date reference September 3, 2026 Date referenced alongside the NYSE listing for the 13,014 shares

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact, aggregate market value

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Common | 12/07/2023 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as attorney-in-fact for Diana A. Glassman."

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

aggregate market value financial

"Common | Fidelity Brokerage Services LLC ... | 13014 | 125455.91"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

What does the Form 144 filing disclose for HORNBECK OFFSHORE SERVICES, INC. (HLX)?

It discloses that former director Diana A. Glassman filed a Rule 144 notice to sell 13,014 shares of HLX common stock, with an aggregate market value of $125,455.91, through Fidelity Brokerage Services LLC on the NYSE.

How many HLX shares is Diana A. Glassman planning to sell under Rule 144?

The notice states a planned sale of 13,014 shares of HORNBECK OFFSHORE SERVICES, INC. common stock, with an indicated aggregate market value of $125,455.91 for these securities.

When and how were the HLX shares in the Form 144 acquired?

The 13,014 shares covered by the notice were acquired on December 7, 2023 as part of a Restricted Stock Vesting from the issuer, described as compensation.

What HLX share sales has Diana A. Glassman made in the past three months?

Over the past three months, the filing lists a sale on September 2, 2026 of 14,041 shares of common stock, for total proceeds of $145,491.61.

Who is executing the planned HLX stock sale for Diana A. Glassman?

The filing identifies Fidelity Brokerage Services LLC, located at 900 Salem Street, Smithfield, RI, as the broker handling the 13,014 HLX common shares to be sold on the NYSE.

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

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Available on EDGAR 09/03/2026 - 08:15 PM Accepted by SEC EDGAR 09/03/2026 - 04:41 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001946868
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	HORNBECK OFFSHORE SERVICES, INC.
SEC File Number	001-32936
Address of Issuer	103 NORTHPARK BOULEVARD SUITE 300 COVINGTON LOUISIANA 70433
Phone	985-727-2000
Name of Person for Whose Account the Securities are To Be Sold	Glassman Diana
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Former Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	13014	125455.91	147382447	09/03/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	12/07/2023	Restricted Stock Vesting	Issuer			13014	12/07/2023	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Diana A. Glassman 103 Northpark Boulevard Suite 300 Covington LA 70433	Common	09/02/2026	14041	145491.61

144: Remarks and Signature

Remarks
Date of Notice	09/03/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Diana A. Glassman.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)