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

Institutional Holders (2016Q1)
Portfolio Summary: 4 Institutional holders with a total value of $21,368,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 82,300 11,458,000 53.62% Call
2 Timber Hill LLC 55,900 7,782,000 36.42% Call
3 Allianz Asset Management GmbH 12,600 1,754,000 8.21% Call
4 SIMPLEX TRADING, LLC 510 374,000 1.75% 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.