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

Institutional Holders (2016Q4)
Portfolio Summary: 8 Institutional holders with a total value of $33,858,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 ADVENT CAPITAL MANAGEMENT /DE/ 200 25,000 0.07% Call
2 SIMPLEX TRADING, LLC 766 272,000 0.80% Call
3 WADDELL & REED FINANCIAL INC 5,000 612,000 1.81% Call
4 GROUP ONE TRADING LLC 18,400 2,251,000 6.65% Call
5 Pentwater Capital Management LP 20,000 2,447,000 7.23% Call
6 Timber Hill LLC 21,000 2,569,000 7.59% Call
7 Allianz Asset Management GmbH 51,300 6,277,000 18.54% Call
8 SABBY MANAGEMENT, LLC 1,586 19,405,000 57.31% 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.