ASPEN TECHNOLOGY INC

CUSIP: 045327103 Class: COM

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q1 2021
Shares 3,864 Value ($000) $558 Avg Close — Range —
Q3 2020
Shares 3,134 Value ($000) $397 Avg Close — Range —
Q2 2020
Shares 3,058 Value ($000) $317 Avg Close — Range —
Q2 2018
Shares 6,300 Value ($000) $584 Avg Close — Range —
Q1 2018
Shares 27,100 Value ($000) $2,138 Avg Close — Range —