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PIONEER NAT RES CO
PIONEER NAT RES CO. Institutional holdings reported to the SEC.

Institutional Holders (2016Q1)
Portfolio Summary: 7 Institutional holders with a total value of $51,558,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 164,200 23,110,000 44.82% Call
2 Timber Hill LLC 117,300 16,509,000 32.02% Call
3 KGH Ltd 600,000 4,685,000 9.09% Call
4 American Assets Investment Management, LLC 32,010 4,505,000 8.74%
5 Allianz Asset Management GmbH 9,500 1,337,000 2.59% Call
6 SIMPLEX TRADING, LLC 718 751,000 1.46% Call
7 GROUP ONE TRADING LLC 4,700 661,000 1.28% Call

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.