ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q2 2021
Shares 562,635 Value ($000) $103,362 Avg Close — Range —
Q1 2021
Shares 404,055 Value ($000) $61,784 Avg Close — Range —
Q4 2020
Shares 149,031 Value ($000) $23,285 Avg Close — Range —
Q3 2020
Shares 297,523 Value ($000) $34,046 Avg Close — Range —
Q2 2020
Shares 290,616 Value ($000) $32,619 Avg Close — Range —
Q1 2020
Shares 228,080 Value ($000) $20,479 Avg Close — Range —
Q4 2019
Shares 232,545 Value ($000) $25,150 Avg Close — Range —
Q3 2019
Shares 234,870 Value ($000) $23,003 Avg Close — Range —
Q2 2019
Shares 271,133 Value ($000) $35,513 Avg Close — Range —
Q1 2019
Shares 303,567 Value ($000) $41,036 Avg Close — Range —
Q4 2018
Shares 353,649 Value ($000) $34,431 Avg Close — Range —
Q3 2018
Shares 324,169 Value ($000) $45,063 Avg Close — Range —
Q2 2018
Shares 341,106 Value ($000) $42,348 Avg Close — Range —
Q1 2018
Shares 376,917 Value ($000) $42,011 Avg Close — Range —
Q4 2017
Shares 369,966 Value ($000) $44,244 Avg Close — Range —
Q3 2017
Shares 247,254 Value ($000) $34,687 Avg Close — Range —
Q2 2017
Shares 265,316 Value ($000) $32,281 Avg Close — Range —
Q1 2017
Shares 138,296 Value ($000) $16,767 Avg Close — Range —
Q4 2016
Shares 110,819 Value ($000) $13,559 Avg Close — Range —
Q3 2016
Shares 131,184 Value ($000) $16,075 Avg Close — Range —
Q2 2016
Shares 179,984 Value ($000) $21,015 Avg Close — Range —
Q1 2016
Shares 232,624 Value ($000) $32,386 Avg Close — Range —
Q4 2015
Shares 279,024 Value ($000) $53,224 Avg Close — Range —
Q3 2015
Shares 191,124 Value ($000) $29,890 Avg Close — Range —
Q2 2015
Shares 225,685 Value ($000) $40,797 Avg Close — Range —
Q1 2015
Shares 150,194 Value ($000) $26,029 Avg Close — Range —
Q4 2014
Shares 173,204 Value ($000) $32,048 Avg Close — Range —
Q3 2014
Shares 164,404 Value ($000) $27,261 Avg Close — Range —
Q2 2014
Shares 163,424 Value ($000) $25,535 Avg Close — Range —
Q1 2014
Shares 183,504 Value ($000) $27,916 Avg Close — Range —
Q4 2013
Shares 183,304 Value ($000) $24,390 Avg Close — Range —
Q3 2013
Shares 193,494 Value ($000) $22,476 Avg Close — Range —
Q2 2013
Shares 244,614 Value ($000) $22,563 Avg Close — Range —