ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

Note: Option positions (PUT/CALL) are excluded.

Q4 2019
Shares 8,954 Value ($000) $968 Avg Close — Range —
Q3 2017
Shares 16,557 Value ($000) $2,323 Avg Close — Range —