Dark
Light
System
Security
PIONEER NAT RES CO
PIONEER NAT RES CO. Institutional holdings reported to the SEC.

Institutional Holders (2015Q2)
Portfolio Summary: 9 Institutional holders with a total value of $77,406,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 207,700 28,806,000 37.21% Put
2 SABBY MANAGEMENT, LLC 1,236 17,142,000 22.15% Put
3 Timber Hill LLC 96,000 13,314,000 17.20% Put
4 MUFG Securities EMEA plc 50,000 6,935,000 8.96% Put
5 Allianz Asset Management GmbH 46,800 6,491,000 8.39% Put
6 SG Americas Securities, LLC 196,600 1,847,000 2.39% Put
7 GROUP ONE TRADING LLC 10,000 1,387,000 1.79% Put
8 SIMPLEX TRADING, LLC 783 1,220,000 1.58% Put
9 Virtu KCG Holdings LLC 1,900 264,000 0.34% Put

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.