ASPEN TECHNOLOGY INC

CUSIP: 045327103 Class: COM

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q1 2022
Shares 575,081 Value ($000) $95,100 Avg Close — Range —
Q4 2021
Shares 527,019 Value ($000) $80,211 Avg Close — Range —
Q3 2021
Shares 695,711 Value ($000) $85,434 Avg Close — Range —
Q2 2021
Shares 679,685 Value ($000) $93,484 Avg Close — Range —
Q1 2021
Shares 799,292 Value ($000) $115,360 Avg Close — Range —
Q4 2020
Shares 636,614 Value ($000) $82,920 Avg Close — Range —
Q3 2020
Shares 591,496 Value ($000) $74,877 Avg Close — Range —
Q1 2020
Shares 2,234 Value ($000) $212 Avg Close — Range —
Q4 2019
Shares 2,234 Value ($000) $270 Avg Close — Range —
Q3 2019
Shares 2,312 Value ($000) $285 Avg Close — Range —
Q2 2019
Shares 2,338 Value ($000) $290 Avg Close — Range —
Q1 2019
Shares 39,877 Value ($000) $4,155 Avg Close — Range —
Q4 2018
Shares 56,486 Value ($000) $4,634 Avg Close — Range —
Q3 2018
Shares 61,991 Value ($000) $7,062 Avg Close — Range —
Q2 2018
Shares 59,408 Value ($000) $5,511 Avg Close — Range —
Q1 2018
Shares 50,734 Value ($000) $4,002 Avg Close — Range —
Q4 2017
Shares 47,363 Value ($000) $3,136 Avg Close — Range —
Q3 2017
Shares 47,363 Value ($000) $2,974 Avg Close — Range —
Q2 2017
Shares 47,363 Value ($000) $2,618 Avg Close — Range —
Q1 2017
Shares 34,574 Value ($000) $2,036 Avg Close — Range —
Q4 2016
Shares 34,574 Value ($000) $1,892 Avg Close — Range —
Q3 2016
Shares 20,406 Value ($000) $955 Avg Close — Range —