ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

Twin Securities, Inc.'s Holding History (CIK: 0001351351)

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

Q2 2021
Shares 353,881 Value ($000) $65,011 Avg Close — Range —
Q1 2021
Shares 228,882 Value ($000) $34,998 Avg Close — Range —