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

Institutional Holders (2015Q1)
Portfolio Summary: 8 Institutional holders with a total value of $39,997,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 137,900 22,548,000 56.37% Call
2 Timber Hill LLC 79,400 12,983,000 32.46% Call
3 American Assets Investment Management, LLC 17,870 2,922,000 7.31%
4 Virtu KCG Holdings LLC 4,300 703,000 1.76% Call
5 Allianz Asset Management GmbH 3,400 556,000 1.39% Call
6 SIMPLEX TRADING, LLC 200 182,000 0.46% Call
7 KGH Ltd 155,800 86,000 0.22% Call
8 SG Americas Securities, LLC 12,100 17,000 0.04% 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.