X0306 4 2014-03-24 0 0001376339 MIMEDX GROUP, INC. MDXG 0000901434 PETIT PARKER H C/O MIMEDX GROUP, INC. 1775 WEST OAK COMMONS CT., NE MARIETTA GA 30062 1 1 1 0 Chairman & CEO Common Stock 2014-03-24 4 J 0 1250000 0.0 D 0 I by Petit Investments, L.L.L.P. II Common Stock 2014-11-11 5 G 0 35332 0.0 D 4499552 D Common Stock 2014-11-19 5 G 0 63493 0 D 4436059 D On March 24, 2014, for estate planning purposes, Mr. Petit transferred his interest and no longer served as manager of Petit Management Company, LLC, the general partner of Petit Investments, L.L.L.P. II. As such, Mr. Petit is no longer the beneficial owner of the shares owned by Petit Investments, L.L.L.P. II. Gift of shares to a 501(c)(3) organization. Number of shares held directly includes 177,705 shares of Restricted Stock, which vest in equal installments over the first three anniversary dates of the grants. Mr. Petit also indirectly beneficially owns 1,250,000 shares held by Cox Road Partners II, LLLP, 1,250,000 shares held by Cox Road Partners, LLLP, and an aggregate of 1,350,000 shares held indirectly by six (6) Grantor Retained Annuity Trusts (GRATs). /s/ Michael J. Senken, by Power of Attorney 2014-12-19