SpiderRock Trading LLC - SIRONA DENTAL SYSTEM ownership

Quarter-by-quarter ownership
SpiderRock Trading LLC ownership history of SIRONA DENTAL SYSTEM
ValueSharesWeighting
Q4 2014$8,000
-75.8%
1,800
+28.6%
0.02%
-80.5%
Q3 2014$33,000
+725.0%
1,400
+75.0%
0.11%
+465.0%
Q1 2014$4,0008000.02%
Other shareholders
SIRONA DENTAL SYSTEM shareholders Q2 2014
NameSharesValueWeighting ↓
NORTHERN TRUST CO OF CONNECTICUT 236,373$16,593,0000.10%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 10,034$704,0000.00%
View complete list of SIRONA DENTAL SYSTEM shareholders