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BIOGEN INC
BIOGEN INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 7 Institutional holders with a total value of $161,221,125.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 328,700 111,577,000 69.21% Put
2 Timber Hill LLC 97,200 32,995,000 20.47% Put
3 SABBY MANAGEMENT, LLC 327 11,100,000 6.88% Put
4 Virtu KCG Holdings LLC 13,600 4,617,000 2.86% Put
5 SIMPLEX TRADING, LLC 1,215 760,000 0.47% Put
6 SG Americas Securities, LLC 12,300 147,000 0.09% Put
7 LUPO SECURITIES, LLC 40 25,125 0.02% 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.