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

Institutional Holders (2016Q2)
Portfolio Summary: 5 Institutional holders with a total value of $26,728,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Timber Hill LLC 89,200 10,415,000 38.97% Call
2 CITADEL ADVISORS LLC 66,300 7,741,000 28.96% Call
3 Iguana Healthcare Management, LLC 50,000 5,838,000 21.84% Call
4 Allianz Asset Management GmbH 23,100 2,697,000 10.09% Call
5 SIMPLEX TRADING, LLC 128 37,000 0.14% 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.