X0306 4 2018-11-09 0 0001438533 Retrophin, Inc. RTRX 0001283303 REED ELIZABETH E C/O RETROPHIN, INC. 3721 VALLEY CENTRE DR., SUITE 200 SAN DIEGO CA 92130 0 1 0 0 SVP, GC & Corporate Secretary Common Stock 2018-11-09 4 A 0 5000 0.00 A 22827 D On January 4, 2017, the reporting person was granted performance restricted stock units (PRSUs) covering 15,000 shares of the Issuer's common stock, which vest upon the satisfaction of certain performance criteria. On November 9, 2018, a portion of the PRSUs vested upon the Issuer's confirmation that the US Food and Drug Administration had accepted for review a New Drug Application filed by the Issuer's partner. /s/ Elizabeth E. Reed 2018-11-14