ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

HBK INVESTMENTS L P's Holding History (CIK: 0001011443)

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

Q2 2021
Shares 6,600,000 Value ($000) $1,212,486 Avg Close — Range —
Q1 2021
Shares 5,725,000 Value ($000) $875,410 Avg Close — Range —
Q4 2020
Shares 1,723,575 Value ($000) $269,291 Avg Close — Range —
Q1 2019
Shares 1,948 Value ($000) $263 Avg Close — Range —
Q4 2018
Shares 150,705 Value ($000) $14,673 Avg Close — Range —
Q2 2018
Shares 29,869 Value ($000) $3,708 Avg Close — Range —
Q1 2018
Shares 75,040 Value ($000) $8,364 Avg Close — Range —
Q4 2017
Shares 2,619 Value ($000) $313 Avg Close — Range —
Q2 2016
Shares 2,052 Value ($000) $240 Avg Close — Range —
Q1 2015
Shares 65,600 Value ($000) $11,368 Avg Close — Range —
Q4 2014
Shares 89,720 Value ($000) $16,601 Avg Close — Range —
Q3 2014
Shares 17,048 Value ($000) $2,827 Avg Close — Range —
Q2 2014
Shares 106,700 Value ($000) $16,672 Avg Close — Range —
Q1 2014
Shares 127,500 Value ($000) $19,397 Avg Close — Range —
Q4 2013
Shares 18,900 Value ($000) $2,515 Avg Close — Range —
Q3 2013
Shares 2,000 Value ($000) $232 Avg Close — Range —
Q2 2013
Shares 36,282 Value ($000) $3,347 Avg Close — Range —