ASPEN TECHNOLOGY INC

CUSIP: 045327103 Class: COM

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q1 2022
Shares 16,923 Value ($000) $2,799 Avg Close — Range —
Q4 2021
Shares 17,000 Value ($000) $2,587 Avg Close — Range —
Q3 2021
Shares 17,000 Value ($000) $2,088 Avg Close — Range —
Q2 2021
Shares 17,100 Value ($000) $2,352 Avg Close — Range —