X0202 SCHEDULE 13G 0001597848 XXXXXXXX LIVE Common Stock, par value $0.00001 per share 09/01/2026 0000866829 Hornbeck Offshore Services, Inc. 42330P107 103 Northpark Boulevard, Suite 300 Covington LA 70433 Rule 13d-1(c) Merced Capital, L.P. DE 0.00 11733106.00 0.00 11733106.00 11733106.00 N 5.3 IA PN Series E of Merced Capital Partners, LLC DE 0.00 11733106.00 0.00 11733106.00 11733106.00 N 5.3 OO David A. Ericson X1 0.00 11733106.00 0.00 11733106.00 11733106.00 N 5.3 HC IN Vincent C. Vertin X1 0.00 11733106.00 0.00 11733106.00 11733106.00 N 5.3 HC IN Stuart B. Brown X1 0.00 11733106.00 0.00 11733106.00 11733106.00 N 5.3 HC IN Hornbeck Offshore Services, Inc. 103 Northpark Boulevard, Suite 300, Covington, Louisiana 70433 This Schedule 13G is being filed by Merced Capital, L.P. ("Merced Capital"); Merced is the general partner of and/or investment adviser to each of Athilon Capital Corp. LLC ("First MP"), Merced Capital Partners V, L.P. ("Second MP") and Merced Partners Limited Partnership ("Third MP") (collectively, the "Merced Entities") that directly hold shares of common stock of the Issuer reported on this Schedule 13G; Merced Capital is managed by Series E of Merced Capital Partners, LLC ("Merced Capital Partners"), a series of a Delaware limited liability company; David A. Ericson, Vincent C. Vertin, and Stuart B. Brown collectively have voting control over the interests in Merced Capital Partners. In such capacities, each of Merced Capital, Merced Capital Partners, Mr. Ericson, Mr. Vertin, and Mr. Brown (each of whom may be referred to herein as a "Reporting Person") may be deemed to share voting and investment control over the shares of common stock of the Issuer reported in this Schedule 13G; however, each of Mr. Ericson, Mr. Vertin, and Mr. Brown disclaim beneficial ownership of the shares of common stock of the Issuer reported in this Schedule 13G. The principal business address for Merced, Merced Capital Partners, Mr. Ericson, Mr. Vertin, Mr. Brown, and each of the Merced Entities is 701 Carlson Parkway, Suite 1110, Minnetonka, MN, 55305. Merced Capital is a Delaware limited partnership. Merced Capital Partners is a Delaware limited liability company. Each of Mr. Ericson, Mr. Vertin, and Mr. Brown are citizens of the United States Y As of September 1, 2026, each reporting person may be deemed to be the beneficial owner of 11,733,106 shares of Common Stock, which amount includes (i) 4,139,410 shares of Common Stock held for the account of First MP, (ii) 2,941,533 shares of Common Stock held for the account of Second MP and (iii) 4,652,163 shares of Common Stock held for the account of Third MP. As of September 1, 2026, each of the Reporting Persons may be deemed to be the beneficial owner of 5.3% of the outstanding shares of Common Stock (there were 222,201,763 shares of Common Stock outstanding as of September 1, 2026, according to the Issuer's transfer agent). 0 11,733,106 0 11,733,106 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Merced Capital, L.P. /s/ Joel Anderson 09/08/2026 Series E of Merced Capital Partners, LLC /s/ Joel Anderson 09/08/2026 David A. Ericson /s/ David A. Ericson 09/08/2026 Vincent C. Vertin /s/ Vincent C. Vertin 09/08/2026 Stuart B. Brown /s/ Stuart B. Brown 09/08/2026