SIMPLEX TRADING, LLC - PARKER DRILLING CO ownership

PARKER DRILLING CO's ticker is and the CUSIP is 701081951. A total of 2 filers reported holding PARKER DRILLING CO in Q3 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of PARKER DRILLING CO
ValueSharesWeighting
Q2 2017$05
-89.1%
0.00%
Q4 2016$0
-100.0%
46
+475.0%
0.00%
Q2 2016$2,0000.0%80.0%0.00%
Q1 2016$2,0008
+166.7%
0.00%
Q3 2015$030.0%0.00%
Q2 2015$030.00%
Other shareholders
PARKER DRILLING CO shareholders Q3 2015
NameSharesValueWeighting ↓
Citadel Advisors 2,000$6,0000.00%
View complete list of PARKER DRILLING CO shareholders