ASPEN TECHNOLOGY INC

CUSIP: 045327103 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q3 2018
Shares 34 Value ($000) $4 Avg Close — Range —
Q2 2018
Shares 34 Value ($000) $3 Avg Close — Range —
Q1 2018
Shares 34 Value ($000) $3 Avg Close — Range —
Q4 2017
Shares 11,130 Value ($000) $737 Avg Close — Range —