ASPEN TECHNOLOGY INC /DE/

Annual & Quarterly Reports

2022-04-27

2022-01-26

2021-10-27

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2021-08-18

2020-12-09

2019-09-10

2018-08-08

2017-08-10

2016-08-11

2015-08-13

2014-08-13

2013-08-15