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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1014507	Sirona Dental Systems Inc.	SIRO	Dental Equipment & Supplies (3843)	113374812

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1181240	K William Hood	C/O Sirona Dental Systems, Inc 30-30 47Th Ave, Suite 500 Long Island City NY 11101		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2012-08-27	30,000	$19.94	39,533	No	4	M	Direct
Common Stock	Disposition	2012-08-27	30,000	$53.05	9,533	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Option(Right to buy)	Disposition	2012-08-27	30,000	$0.00	30,000	$19.94

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2019-05-07	No	4	M	Direct

Footnotes

The grant given on 5/7/2009 had the following vesting schedule: the first 1/3 became exercisable on 5/7/2010, the next 1/3 became exercisable on 5/7/2011 and the final 1/3 became exercisable on 5/7/2012.
The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.00-$53.20, inclusive. The reporting person undertakes to provide Sirona Dental Systems, Inc., any security holder of Sirona Dental Systems, Inc., 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.