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REGENERON PHARMACEUTICALS INC
REGENERON PHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q3)
Portfolio Summary: 8 Institutional holders with a total value of $182,792,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 247,800 115,262,000 63.06% Put
2 Timber Hill LLC 71,900 33,444,000 18.30% Put
3 JPMORGAN CHASE & CO 30,000 13,954,000 7.63% Put
4 Allianz Asset Management GmbH 19,100 8,884,000 4.86% Put
5 Virtu KCG Holdings LLC 9,900 4,605,000 2.52% Put
6 SG Americas Securities, LLC 60,100 2,484,000 1.36%
7 SABBY MANAGEMENT, LLC 53 2,465,000 1.35% Put
8 SIMPLEX TRADING, LLC 410 1,694,000 0.93% 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.