X0306 4 2017-12-28 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 2017-12-28 4 F 0 27496 17.98 D 44527 D The transaction reported represents the non-discretionary withholding of shares to satisfy the reporting person's tax withholding obligations in connection with the non-reportable vesting and settlement of restricted stock units. Common stock originally granted consists of restricted stocked units; this award was originally scheduled to vest on March 2, 2020, but was accelerated to vest on December 28, 2017. /s/ Peter Kiener 2018-01-02