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

Institutional Holders (2015Q4)
Portfolio Summary: 12 Institutional holders with a total value of $126,076,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Nokota Management, LP 441,800 55,393,000 43.94% Call
2 CITADEL ADVISORS LLC 214,700 26,919,000 21.35% Call
3 Timber Hill LLC 147,800 18,531,000 14.70% Call
4 JPMORGAN CHASE & CO 82,000 10,281,000 8.15% Call
5 American Assets Investment Management, LLC 31,910 4,001,000 3.17%
6 GROUP ONE TRADING LLC 26,400 3,310,000 2.63% Call
7 Hudson Bay Capital Management LP 25,000 3,135,000 2.49% Call
8 KGH Ltd 521,000 3,016,000 2.39% Call
9 Virtu KCG Holdings LLC 4,800 602,000 0.48% Call
10 SIMPLEX TRADING, LLC 859 454,000 0.36% Call
11 Allianz Asset Management GmbH 3,400 426,000 0.34% Call
12 SG Americas Securities, LLC 52,800 8,000 0.01% 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.