X0303 4 2011-03-02 0 0001333274 MERCER INTERNATIONAL INC. MERC 0001337324 Ridder Wolfram AM EISENBUHL 7 SELBITZ 2M D-95152 GERMANY 0 1 0 0 VP of Business Development Common Shares 2011-03-02 4 S 0 1500 13.66 D 56886 D Common Shares 2011-03-02 4 S 0 8500 13.65 D 48386 D Common Shares 2011-03-03 4 S 0 5000 13.85 D 43386 D Common Shares 2011-03-03 4 S 0 2500 14 D 40886 D Common Shares 2011-03-03 4 S 0 2500 14.1 D 38386 D Common Shares 2011-03-03 4 S 0 2500 14.25 D 35886 D Common Shares 2011-03-03 4 S 0 2500 14.35 D 33386 D Common Shares 2011-03-03 4 S 0 2500 14.4 D 30886 D Common Shares 2011-03-03 4 S 0 2500 14.45 D 28386 D Common Shares 2011-03-03 4 S 0 2500 14.55 D 25886 D Common Shares 2011-03-03 4 S 0 1000 14.35 D 24886 D Common Shares 2011-03-03 4 S 0 200 14.36 D 24686 D Common Shares 2011-03-03 4 S 0 200 14.24 D 24486 D Common Shares 2011-03-03 4 S 0 100 14.23 D 24386 D Common Shares 2011-03-03 4 S 0 600 14.22 D 23786 D Common Shares 2011-03-03 4 S 0 500 14.21 D 23286 D Common Shares 2011-03-03 4 S 0 3286 14.2 D 20000 D /s/ Wolfram Ridder 2011-03-03