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ALEXION PHARMACEUTICALS INC
ALEXION PHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q3)
Portfolio Summary: 6 Institutional holders with a total value of $54,991,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Timber Hill LLC 118,300 18,501,000 33.64% Put
2 SABBY MANAGEMENT, LLC 975 15,248,000 27.73% Put
3 CITADEL ADVISORS LLC 82,900 12,965,000 23.58% Put
4 Allianz Asset Management GmbH 46,300 7,241,000 13.17% Put
5 SG Americas Securities, LLC 50,000 575,000 1.05%
6 SIMPLEX TRADING, LLC 618 461,000 0.84% 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.