ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

Artisan Partners Limited Partnership's Holding History (CIK: 0001466153)

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

Q1 2020
Shares 1,066,254 Value ($000) $95,739 Avg Close — Range —
Q4 2019
Shares 3,301,699 Value ($000) $357,079 Avg Close — Range —
Q3 2019
Shares 4,852,435 Value ($000) $475,247 Avg Close — Range —
Q2 2019
Shares 5,027,064 Value ($000) $658,445 Avg Close — Range —
Q1 2019
Shares 4,248,248 Value ($000) $574,278 Avg Close — Range —
Q4 2018
Shares 1,323,698 Value ($000) $128,875 Avg Close — Range —
Q3 2018
Shares 1,391,333 Value ($000) $193,409 Avg Close — Range —
Q2 2018
Shares 1,097,644 Value ($000) $136,273 Avg Close — Range —
Q1 2018
Shares 1,048,156 Value ($000) $116,827 Avg Close — Range —
Q4 2017
Shares 594,960 Value ($000) $71,151 Avg Close — Range —
Q4 2014
Shares 537,495 Value ($000) $99,453 Avg Close — Range —
Q3 2014
Shares 1,484,454 Value ($000) $246,152 Avg Close — Range —
Q2 2014
Shares 1,812,364 Value ($000) $283,182 Avg Close — Range —
Q1 2014
Shares 2,316,453 Value ($000) $352,402 Avg Close — Range —
Q4 2013
Shares 2,301,633 Value ($000) $306,255 Avg Close — Range —
Q3 2013
Shares 2,316,877 Value ($000) $269,128 Avg Close — Range —
Q2 2013
Shares 2,060,800 Value ($000) $190,088,192 Avg Close — Range —