ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

Westchester Capital Management, LLC's Holding History (CIK: 0001512805)

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

Q2 2021
Shares 1,388,701 Value ($000) $255,119 Avg Close — Range —
Q1 2021
Shares 1,305,536 Value ($000) $199,629 Avg Close — Range —
Q4 2020
Shares 790,632 Value ($000) $123,529 Avg Close — Range —
Q2 2015
Shares 138 Value ($000) $25 Avg Close — Range —