X0508 4 2024-01-15 0 0000949039 DIAMOND OFFSHORE DRILLING, INC. DO 0001695799 Peakes Adam C 15415 KATY FREEWAY SUITE 100 HOUSTON TX 77094 1 0 0 0 0 Restricted Stock Units 2024-01-15 4 A 0 9562 0.00 A Common Stock 9562 9562 D Each restricted stock unit represents a contingent right to receive one share of common stock. The restricted stock units vest and become non-forfeitable on the first anniversary of the grant date. The vested shares of common stock will be delivered to the reporting person following the earliest to occur of (i) the fifth anniversary of the grant date, (ii) the reporting person's separation from service with the issuer and (iii) a change in control (as defined in the award agreement) of the issuer. /s/ Terence W. Waldorf Attorney-in-Fact for Adam C. Peakes 2024-01-16