X0306 4 2018-08-06 0 0000820081 CAMBREX CORP CBM 0001192621 KLOSK STEVEN M ONE MEADOWLANDS PLAZA EAST RUTHERFORD NJ 07073 1 1 0 0 President & CEO Common Stock 2018-05-07 4 A 0 80000 0.00 A 163328 D Common Stock 2018-08-06 4 S 0 53599 62.07 D 109729 D Common Stock 2018-08-06 4 S 0 26401 63.23 D 83328 D Pursuant to settlement of a performance share award. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.65 to $62.65 inclusive. The reporting person undertakes to provide to Cambrex Corporation, any security holder of Cambrex Corporation, or staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this Footnote 2 to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.70 to $63.65 inclusive. The reporting person undertakes to provide to Cambrex Corporation, any security holder of Cambrex Corporation, or staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this Footnote 3 to this Form 4. /s/ Samantha Hanley for Steven Klosk by POA 2018-08-07