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

Institutional Holders (2015Q4)
Portfolio Summary: 5 Institutional holders with a total value of $46,023,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 975 18,598,000 40.41% Put
2 Allianz Asset Management GmbH 64,000 12,208,000 26.53% Put
3 CITADEL ADVISORS LLC 49,500 9,442,000 20.52% Put
4 Timber Hill LLC 29,700 5,665,000 12.31% Put
5 SIMPLEX TRADING, LLC 262 110,000 0.24% 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.