X0609 4 2026-09-01 0000866829 HORNBECK OFFSHORE SERVICES, INC. HOS 0001271502 LOVOI JOHN false 103 NORTHPARK BOULEVARD, SUITE 300 COVINGTON LA 70433 true false false false false Common Stock 2026-09-01 4 F false 4552 10.30 D 387775 D Common Stock 2026-09-02 4 A false 16990 0 A 404765 D Represents a grant of 16,990 restricted stock units ("RSUs"), each of which represents a contingent right to receive, upon vesting, one share of common stock, par value $0.00001 per share, of the Issuer. The RSUs vest on September 1, 2029. Exhibit 24.1 - Power of Attorney /s/ Beth A. LaBrosse, as Attorney-in-Fact for John Lovoi 2026-09-03