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

Institutional Holders (2014Q4)
Portfolio Summary: 6 Institutional holders with a total value of $89,670,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 147,400 60,471,000 67.44% Call
2 Timber Hill LLC 44,600 18,297,000 20.40% Call
3 Calamos Advisors LLC 215 3,450,000 3.85% Call
4 Virtu KCG Holdings LLC 7,200 2,954,000 3.29% Call
5 SIMPLEX TRADING, LLC 549 2,734,000 3.05% Call
6 SABBY MANAGEMENT, LLC 43 1,764,000 1.97% 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.