X0206 3 2013-09-04 0 0001495899 L2 MEDICAL DEVELOPMENT CO SCQO 0001507729 Altira Group LLC 1675 BROADWAY, SUITE 2400 DENVER CO 80202 0 0 1 0 Common Stock 1171475 I See footnote Common Stock Warrant (Right to Buy) 5.63 2013-09-04 Common Stock 33823 I See footnote Common Stock Warrant (Right to Buy) 2.66 2013-09-04 2017-12-31 Common Stock 45058 I See footnote Altira Group LLC and Altira Management IV LLC are indirect beneficial owners of the reported securities held by Altira Technology Fund IV L.P. None /s/ Dirk W. McDermott, Managing Member 2013-09-16