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

Institutional Holders (2016Q1)
Portfolio Summary: 9 Institutional holders with a total value of $273,396,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 6,663 173,451,000 63.44% Call
2 CITADEL ADVISORS LLC 237,700 61,878,000 22.63% Call
3 Timber Hill LLC 69,100 17,988,000 6.58% Call
4 JPMORGAN CHASE & CO 36,132 9,406,000 3.44% Call
5 Iguana Healthcare Management, LLC 20,000 5,206,000 1.90% Call
6 Allianz Asset Management GmbH 17,300 4,504,000 1.65% Call
7 SIMPLEX TRADING, LLC 984 569,000 0.21% Call
8 SG Americas Securities, LLC 47,700 368,000 0.13% Call
9 GROUP ONE TRADING LLC 100 26,000 0.01% 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.