ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

SANDS CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001020066)

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

Q4 2018
Shares 2,766,636 Value ($000) $269,360 Avg Close — Range —
Q3 2018
Shares 2,965,227 Value ($000) $412,196 Avg Close — Range —
Q2 2018
Shares 3,224,339 Value ($000) $400,302 Avg Close — Range —
Q1 2018
Shares 3,441,608 Value ($000) $383,602 Avg Close — Range —
Q4 2017
Shares 4,553,095 Value ($000) $544,505 Avg Close — Range —
Q3 2017
Shares 4,775,947 Value ($000) $670,018 Avg Close — Range —
Q2 2017
Shares 6,346,074 Value ($000) $772,127 Avg Close — Range —
Q1 2017
Shares 5,235,630 Value ($000) $634,768 Avg Close — Range —
Q4 2016
Shares 5,585,268 Value ($000) $683,358 Avg Close — Range —
Q3 2016
Shares 5,245,752 Value ($000) $642,814 Avg Close — Range —
Q2 2016
Shares 4,874,758 Value ($000) $569,177 Avg Close — Range —
Q1 2016
Shares 5,211,879 Value ($000) $725,598 Avg Close — Range —
Q4 2015
Shares 6,056,762 Value ($000) $1,155,327 Avg Close — Range —
Q3 2015
Shares 6,379,857 Value ($000) $997,746 Avg Close — Range —
Q2 2015
Shares 6,519,546 Value ($000) $1,178,538 Avg Close — Range —
Q1 2015
Shares 5,204,296 Value ($000) $901,904 Avg Close — Range —
Q4 2014
Shares 5,267,903 Value ($000) $974,720 Avg Close — Range —
Q3 2014
Shares 5,311,488 Value ($000) $880,751 Avg Close — Range —
Q2 2014
Shares 5,279,782 Value ($000) $824,966 Avg Close — Range —
Q1 2014
Shares 5,268,418 Value ($000) $801,484 Avg Close — Range —
Q4 2013
Shares 7,370,601 Value ($000) $979,405 Avg Close — Range —
Q3 2013
Shares 7,540,405 Value ($000) $875,893 Avg Close — Range —
Q2 2013
Shares 8,424,567 Value ($000) $777,082 Avg Close — Range —