ABIOMED INC

CUSIP: 003654100 Class: COM

Atika Capital Management LLC's Holding History (CIK: 0001599731)

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

Q4 2015
Shares 19,000 Value ($000) $1,715 Avg Close — Range —
Q3 2015
Shares 75,000 Value ($000) $6,957 Avg Close — Range —
Q2 2015
Shares 62,000 Value ($000) $4,075 Avg Close — Range —
Q1 2015
Shares 36,000 Value ($000) $2,577 Avg Close — Range —