Dark
Light
System
Security
REGENERON PHARMACEUTICALS INC
REGENERON PHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q2)
Portfolio Summary: 7 Institutional holders with a total value of $127,748,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 185,800 94,782,000 74.19% Call
2 SABBY MANAGEMENT, LLC 304 15,508,000 12.14% Call
3 Timber Hill LLC 29,800 15,202,000 11.90% Call
4 SIMPLEX TRADING, LLC 268 1,157,000 0.91% Call
5 Virtu KCG Holdings LLC 1,100 561,000 0.44% Call
6 Allianz Asset Management GmbH 700 357,000 0.28% Call
7 SG Americas Securities, LLC 10,100 181,000 0.14% 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.