X0306 4 2015-02-10 0 0001014507 SIRONA DENTAL SYSTEMS, INC. SIRO 0001562413 Berthan Rainer C/O SIRONA, FABRIKSTRASSE 31D-64625 BENSHEIM 2M GERMANY 0 1 0 0 Executive VP Common Stock 2015-02-10 4 M 0 2000 44.77 A 29296 D Common Stock 2015-02-10 4 S 0 4000 89.35 D 25296 D Option(Right to buy) 44.77 2015-02-10 4 M 0 2000 0.00 D 2022-07-02 Common Stock 2000 16000 D The price in column 4 is a weighted average. These shares were sold in multiple tranactions at prices ranging from $89.34- 89.35, inclusive. The reporting person undertakes to provide Sirona Dental Systems, Inc., any security holder of Sirona Dental Systems, Inc. and or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each seperate price within the ranges set forth in this footnote. Stock options vest as follows: 1/4 on 1/1/2014, 1/4 on 7/2/2014, 1/4 on 7/2/2015, and the final 1/4 on 7/2/2016. Ranier Berthan, by Michael Friedlander, Attorney 2015-02-12