X0303 4 2011-02-28 0 0001376339 MIMEDX GROUP, INC. MDXG 0000901434 PETIT PARKER H C/O MIMEDX GROUP, INC. 811 LIVINGSTON COURT, SUITE B MARIETTA GA 30067 0 1 1 0 Chief Executive Officer Common Stock 2011-02-28 4 P 0 406664 .98 A 4036922 D Stock Option 1.23 2011-03-18 4 A 0 300000 1.23 A 2012-03-18 2021-03-18 Common Stock 300000 3761666 D Number of shares held directly by Mr. Petit. Mr. Petit also beneficially owns 150,000 shares held by the Parker H. Petit Grantor Trust, of which he serves as the Trustee; 150,000 shares held by Petit Investments LP of which he serves as General Partner and Limited Partner and possesses shared voting and investment control; and 975,000 shares held by Cox Road Partners II LLP, 975,000 shares held by Cox Road Partners LLLP, and 975,000 shares held by Petit Investments LLLP II, limited liability limited partnerships over which Mr. Petit possesses sole voting and investment control. The stock option vests one-third on March 18, 2012, one-third on March 18, 2013 and one-third on March 18, 2014. Mr. Petit exercized his option to convert two 5% Convertible Promissory Notes effective 2/28/2011. /s/ Michael J. Senken, by Power of Attorney 2011-04-08