X0306 4 2017-12-12 0001410098 CorMedix Inc. CRMD 0001672645 Kaplan Myron C/O KLEINBERG, KAPLAN, WOLFF & COHEN, PC 551 FIFTH AVENUE, 18TH FLOOR NEW YORK NY 10176 true false false false Common Stock 2017-12-12 4 P false 104166 0.48 A 284166 D Stock Option (Right to Buy Common Stock) 2.24 2027-02-21 Common Stock 40000 40000 D Restricted Stock Units Common Stock 10000 10000 D Stock Option (Right to Buy Common Stock) 4.28 2026-04-28 Common Stock 50000 50000 D Purchase was contracted on November 17, 2017, but not closed until December 12, 2017. These options were granted on 2/21/2017. The options vest in full on the first anniversary of the date of grant, subject to continued service on the board. These Restricted Stock Units were granted on 2/21/2017. Each restricted stock unit represents the right to receive one share of CorMedix Inc. common stock. The restricted stock units vest in full on the first anniversary of the date of grant, subject to continued service on the board. These options were granted on 4/28/2016. These options shall vest as follows: 1/3 on 4/28/2016, 1/3 on 4/28/2017, and 1/3 on 4/28/2018. /s/ Alexander M. Donaldson, by power of attorney 2017-12-14