X0306 4 2017-06-30 0 0001365216 Sucampo Pharmaceuticals, Inc. SCMP 0001328146 Kiener Peter A 805 KING FARM BLVD, SUITE 550 ROCKVILLE MD 20850 0 1 0 0 Chief Science Officer Common Stock, Class A (ESPP) 2017-06-30 4 A 0 336 8.93 A 1693 D The reporting person is voluntarily reporting the acquisition of common stock pursuant to the issuer's Employee Stock Purchase Plan (ESPP) for the period April 1, 2017 through June 30, 2017. This transaction is exempt under Rule 16(b)-3(c). In accordance with the ESPP, these shares were purchased at 85% of the June 30, 2017 closing price of the issuer's common stock. /s/ Peter Kiener 2017-07-07