X0306 4 2018-12-11 0 0001655888 Owl Rock Capital Corp NONE 0001394688 Ostrover Douglas I C/O OWL ROCK CAPITAL CORPORATION, 399 PARK AVENUE, 38TH FLOOR NEW YORK NY 10022 1 0 0 0 Common Stock 2018-12-11 4 P 0 307748 15.59 A 2942083 D Common Stock 2018-12-11 4 P 0 102583 15.59 A 980695 I See footnotes Represents an indeterminate interest in 980,695 shares held by DIO Family LLC, a Delaware limited liability company, of which Julia Ostrover, Mr. Ostrover's wife, is the sole manager. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. (3) Alan Kirshenbaum is signing on behalf of Mr. Ostrover pursuant to the power of attorney dated March 1, 2016, which previously was filed with the Securities and Exchange Commission as an exhibit to the Form 3 Mr. Ostrover filed on May 2, 2016. /s/ Alan Kirshenbaum, on behalf of Douglas I. Ostrover(3) 2018-12-13