SIMPLEX TRADING, LLC - PARKER DRILLING CO ownership

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PARKER DRILLING CO's ticker is and the CUSIP is 701081908. A total of 1 filers reported holding PARKER DRILLING CO in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.0%.

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Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of PARKER DRILLING CO
ValueSharesWeighting
Q4 2018$0–30.0%0.00%–
Q3 2018$0–3–0.00%–
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Other shareholders
PARKER DRILLING CO shareholders Q4 2018
NameSharesValueWeighting ↓
SIMPLEX TRADING, LLC 3$00.00%
View complete list of PARKER DRILLING CO shareholders