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

Institutional Holders (2016Q1)
Portfolio Summary: 5 Institutional holders with a total value of $98,450,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 194,700 70,178,000 71.28% Call
2 Timber Hill LLC 61,000 21,987,000 22.33% Call
3 SABBY MANAGEMENT, LLC 103 3,713,000 3.77% Call
4 Allianz Asset Management GmbH 6,500 2,343,000 2.38% Call
5 SIMPLEX TRADING, LLC 706 229,000 0.23% 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.