Calamos Advisors LLC - PIONEER ENERGY SVCS CORP ownership

Quarter-by-quarter ownership
Calamos Advisors LLC ownership history of PIONEER ENERGY SVCS CORP
ValueSharesWeighting
Q3 2017$210,00025,0000.00%
Other shareholders
PIONEER ENERGY SVCS CORP shareholders Q4 2017
NameSharesValueWeighting ↓
Citadel Advisors 3,400$7,0000.00%
SIMPLEX TRADING, LLC 1$00.00%
View complete list of PIONEER ENERGY SVCS CORP shareholders