ASPEN TECHNOLOGY INC /DE/

Q: Mar 31 2022

Q: Dec 31 2021

Q: Sep 30 2021

FY: Jun 30 2021

Q: Mar 31 2021

Q: Dec 31 2020

Q: Sep 30 2020

FY: Jun 30 2020

Q: Sep 30 2020

FY: Jun 30 2020

Q: Mar 31 2020

Q: Dec 31 2019

Q: Sep 30 2019

FY: Jun 30 2019

FY: Jun 30 2019

Q: Mar 31 2019

Q: Dec 31 2018

Q: Sep 30 2018

FY: Jun 30 2018

Q: Mar 31 2018

2.01,3.01,3.03,5.01,5.02,5.03,5.07,8.01,9.01

5.02

1.01,9.01

8.01

5.02,9.01

2.02,9.01

5.02,9.01

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

2.02,9.01

8.01,9.01

1.01,2.03,9.01

5.07

2.02,9.01

Entry into a Material Definitive Agreement

2.02,9.01

8.01,9.01

5.02,9.01

1.01,2.03,8.01,9.01

2.02,9.01

5.02,9.01

Certification of termination of registration of a class of securities (Section 12(b))

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Notification of removal from listing and/or registration on a national securities exchange

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

No description available

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

none

none

Golz Karen

Karaboutis Adriana

WISE R HALSEY

Whelan, Jr. Robert M.

Stagno Christopher

Smith Jill D.

Pietri Antonio J

Keresty Georgia

Bradicich Thomas Michael

CASEY DONALD P

Chawla Manish

Breithaupt Chantelle Yvette

Hammond F G

Bradicich Thomas Michael

Keresty Georgia

Smith Jill D.

Whelan, Jr. Robert M.

WISE R HALSEY

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC