X0306 4 2016-01-05 0 0001333274 MERCER INTERNATIONAL INC. MERC 0001336756 Nossol Leonhard SUITE 1120 700 WEST PENDER STREET VANCOUVER A1 V6C 1G8 BRITISH COLUMBIA, CANADA 0 1 0 0 Group Controller for Europe Common Stock 2016-01-05 4 M 0 10958 0 A 44652 D Common Stock 2016-01-05 4 M 0 5589 8.96 D 39063 D Performance Share Units 0 2016-01-05 4 M 0 10958 0 D Common Stock 10958 0 D Each performance unit represents a right to receive one share of common stock of Mercer International Inc. Represents the average of the intraday high and low trading price on January 5, 2016. Represents the vesting on December 31, 2015 of the third tranche of performance share units awarded to the reporting person based on the achievement of certain specified performance criteria, including company performance, share price performance and individual performance during the 2011 to 2013 performance period. /s/ Leonhard Nossol 2016-01-07