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

Institutional Holders (2015Q4)
Portfolio Summary: 7 Institutional holders with a total value of $46,732,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 143,800 18,030,000 38.58% Put
2 Timber Hill LLC 103,100 12,927,000 27.66% Put
3 Allianz Asset Management GmbH 52,800 6,620,000 14.17% Put
4 GROUP ONE TRADING LLC 39,800 4,990,000 10.68% Put
5 SG Americas Securities, LLC 261,900 2,546,000 5.45% Put
6 SIMPLEX TRADING, LLC 728 967,000 2.07% Put
7 Virtu KCG Holdings LLC 5,200 652,000 1.40% 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.