4.5.3. Side Letter (Antwortbeilage 5) 4.5.3.1. Im Side Letter vom 20. Juni 2015 ist Folgendes festgehalten worden: (…) The role as GF at B. incorporate both the GF and the CEO role. In this position, possible complementary acquisitations, directly influencing B., will be realized. The GF / CEO role will enable the participation in any future stock-options, warranty or raising of external capital. The objectives for the upcoming year's variable compensation-package shall be defined and agreed upon together with the sign off of the yearly Budget by the board, no later than, and together with, the closing of this current year's results. (…)