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

Institutional Holders (2014Q4)
Portfolio Summary: 6 Institutional holders with a total value of $104,432,843.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 195,700 80,286,000 76.88% Put
2 Timber Hill LLC 46,900 19,241,000 18.42% Put
3 Virtu KCG Holdings LLC 11,100 4,554,000 4.36% Put
4 SIMPLEX TRADING, LLC 403 275,000 0.26% Put
5 SG Americas Securities, LLC 50,000 68,000 0.07% Put
6 LUPO SECURITIES, LLC 18 8,843 0.01% 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.