ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

Calamos Advisors LLC's Holding History (CIK: 0001316507)

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

Q2 2021
Shares 169,936 Value ($000) $31,219 Avg Close — Range —
Q1 2021
Shares 140,953 Value ($000) $21,553 Avg Close — Range —
Q4 2020
Shares 117,628 Value ($000) $18,378 Avg Close — Range —
Q3 2020
Shares 109,160 Value ($000) $12,491 Avg Close — Range —
Q2 2020
Shares 118,740 Value ($000) $13,327 Avg Close — Range —
Q1 2020
Shares 407,855 Value ($000) $36,621 Avg Close — Range —
Q4 2019
Shares 683,955 Value ($000) $73,970 Avg Close — Range —
Q3 2019
Shares 581,713 Value ($000) $56,973 Avg Close — Range —
Q2 2019
Shares 649,223 Value ($000) $85,035 Avg Close — Range —
Q1 2019
Shares 687,632 Value ($000) $92,954 Avg Close — Range —
Q4 2018
Shares 734,362 Value ($000) $71,497 Avg Close — Range —
Q3 2018
Shares 716,279 Value ($000) $99,570 Avg Close — Range —
Q2 2018
Shares 622,746 Value ($000) $77,314 Avg Close — Range —
Q1 2018
Shares 595,578 Value ($000) $66,384 Avg Close — Range —
Q4 2017
Shares 481,632 Value ($000) $57,598 Avg Close — Range —
Q3 2017
Shares 290,711 Value ($000) $40,784 Avg Close — Range —
Q2 2017
Shares 334,488 Value ($000) $40,697 Avg Close — Range —
Q1 2017
Shares 66,201 Value ($000) $8,026 Avg Close — Range —
Q4 2016
Shares 21,082 Value ($000) $2,579 Avg Close — Range —
Q3 2016
Shares 277,576 Value ($000) $34,014 Avg Close — Range —
Q2 2016
Shares 495,039 Value ($000) $57,801 Avg Close — Range —
Q1 2016
Shares 529,386 Value ($000) $73,701 Avg Close — Range —
Q4 2015
Shares 523,184 Value ($000) $99,797 Avg Close — Range —
Q3 2015
Shares 329,734 Value ($000) $51,567 Avg Close — Range —
Q2 2015
Shares 103,384 Value ($000) $18,689 Avg Close — Range —
Q1 2015
Shares 21,123 Value ($000) $3,661 Avg Close — Range —
Q4 2014
Shares 40,209 Value ($000) $7,440 Avg Close — Range —
Q3 2014
Shares 40,000 Value ($000) $6,633 Avg Close — Range —
Q2 2014
Shares 41,620 Value ($000) $6,503 Avg Close — Range —
Q1 2014
Shares 20,000 Value ($000) $3,043 Avg Close — Range —
Q4 2013
Shares 29,000 Value ($000) $3,859 Avg Close — Range —
Q3 2013
Shares 17,000 Value ($000) $1,975 Avg Close — Range —
Q2 2013
Shares 17,000 Value ($000) $1,568 Avg Close — Range —