ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

ZEVENBERGEN CAPITAL INVESTMENTS LLC's Holding History (CIK: 0001276918)

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

Q1 2017
Shares 180,828 Value ($000) $21,924 Avg Close — Range —
Q4 2016
Shares 402,360 Value ($000) $49,229 Avg Close — Range —
Q3 2016
Shares 420,295 Value ($000) $51,503 Avg Close — Range —
Q2 2016
Shares 345,235 Value ($000) $40,310 Avg Close — Range —
Q1 2016
Shares 349,680 Value ($000) $48,682 Avg Close — Range —
Q4 2015
Shares 350,700 Value ($000) $66,896 Avg Close — Range —
Q3 2015
Shares 295,395 Value ($000) $46,197 Avg Close — Range —
Q2 2015
Shares 297,660 Value ($000) $53,808 Avg Close — Range —
Q1 2015
Shares 261,123 Value ($000) $45,253 Avg Close — Range —
Q4 2014
Shares 14,032 Value ($000) $2,596 Avg Close — Range —