ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

Sachem Head Capital Management LP's Holding History (CIK: 0001582090)

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

Q1 2017
Shares 635,000 Value ($000) $76,987 Avg Close — Range —
Q4 2016
Shares 935,000 Value ($000) $114,397 Avg Close — Range —