ABIOMED INC

CUSIP: 003654100 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2019
Shares 52,868 Value ($000) $9,019 Avg Close — Range —
Q3 2019
Shares 58,878 Value ($000) $10,474 Avg Close — Range —
Q2 2019
Shares 126,320 Value ($000) $32,905 Avg Close — Range —
Q1 2019
Shares 95,233 Value ($000) $27,198 Avg Close — Range —
Q4 2018
Shares 118,449 Value ($000) $38,501 Avg Close — Range —
Q3 2018
Shares 128,659 Value ($000) $57,864 Avg Close — Range —
Q2 2018
Shares 159,170 Value ($000) $65,108 Avg Close — Range —
Q1 2018
Shares 263,224 Value ($000) $76,596 Avg Close — Range —
Q4 2017
Shares 280,044 Value ($000) $52,483 Avg Close — Range —
Q3 2017
Shares 339,961 Value ($000) $57,317 Avg Close — Range —
Q2 2017
Shares 302,345 Value ($000) $43,326 Avg Close — Range —
Q1 2017
Shares 223,697 Value ($000) $28,007 Avg Close — Range —
Q4 2016
Shares 407,439 Value ($000) $45,910 Avg Close — Range —
Q3 2016
Shares 362,427 Value ($000) $46,601 Avg Close — Range —
Q2 2016
Shares 303,577 Value ($000) $33,178 Avg Close — Range —
Q1 2016
Shares 66,657 Value ($000) $6,320 Avg Close — Range —
Q4 2015
Shares 137,336 Value ($000) $12,399 Avg Close — Range —
Q3 2015
Shares 174,681 Value ($000) $16,203 Avg Close — Range —
Q2 2015
Shares 233,875 Value ($000) $15,373 Avg Close — Range —
Q1 2015
Shares 241,250 Value ($000) $17,269 Avg Close — Range —
Q4 2014
Shares 203,325 Value ($000) $7,739 Avg Close — Range —