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

Institutional Holders (2015Q4)
Portfolio Summary: 10 Institutional holders with a total value of $269,786,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 352,000 107,835,000 39.97% Call
2 SABBY MANAGEMENT, LLC 3,437 105,292,000 39.03% Call
3 Timber Hill LLC 93,800 28,736,000 10.65% Call
4 Virtu KCG Holdings LLC 46,700 14,307,000 5.30% Call
5 JPMORGAN CHASE & CO 22,900 7,015,000 2.60% Call
6 SIMPLEX TRADING, LLC 2,457 2,598,000 0.96% Call
7 Allianz Asset Management GmbH 7,800 2,390,000 0.89% Call
8 SG Americas Securities, LLC 65,200 845,000 0.31% Call
9 GROUP ONE TRADING LLC 2,500 766,000 0.28% Call
10 Rothschild Capital Partners, LLC 5 2,000 0.00% 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.