ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q2 2021
Shares 15,891 Value ($000) $2,919 Avg Close — Range —
Q1 2021
Shares 17,816 Value ($000) $2,724 Avg Close — Range —
Q4 2020
Shares 6,900 Value ($000) $1,078 Avg Close — Range —
Q1 2020
Shares 9,000 Value ($000) $808 Avg Close — Range —
Q4 2019
Shares 9,000 Value ($000) $973 Avg Close — Range —
Q3 2019
Shares 9,000 Value ($000) $881 Avg Close — Range —
Q2 2019
Shares 7,000 Value ($000) $917 Avg Close — Range —
Q1 2019
Shares 7,000 Value ($000) $946 Avg Close — Range —
Q4 2018
Shares 6,000 Value ($000) $584 Avg Close — Range —
Q3 2018
Shares 5,000 Value ($000) $695 Avg Close — Range —
Q2 2018
Shares 5,000 Value ($000) $621 Avg Close — Range —
Q1 2018
Shares 6,000 Value ($000) $669 Avg Close — Range —
Q4 2017
Shares 6,000 Value ($000) $718 Avg Close — Range —
Q3 2017
Shares 4,000 Value ($000) $561 Avg Close — Range —
Q2 2017
Shares 4,000 Value ($000) $487 Avg Close — Range —
Q2 2015
Shares 1,415 Value ($000) $256 Avg Close — Range —