JOINDER AGREEMENTSeries Seed Preferred Stock Subscription Agreement • August 17th, 2015
Contract Type FiledAugust 17th, 2015The undersigned hereby joins as a Purchaser and agrees to be bound by the Series Seed Preferred Stock Subscription Agreement dated as of the 27th day of January, 2015 among Cartogram Inc., a Delaware Corporation, the Key Holders and the Purchasers named therein, purchasing the following shares of Series Seed Preferred Stock: