(AZPN)

Role: Director
Signature: /s/ Frederic G. Hammond, attorney-in-fact for Mr. Wise
Stock symbol: AZPN
Transactions as of: Sep 1, 2021
Transactions value $: $0
Form type: 4/A - Amendment
Date filed: 9/15/2021, 09:20 AM
Date Of Original Report: Sep 3, 2021
Previous filing: Aug 11, 2021
Next filing: May 13, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AZPN	Common Stock	Award	$0	+866	+14.04%	$0.00	7.04K	Sep 1, 2021	Direct	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AZPN	Director Stock Option (Right to Buy)	Award	$0	+1.53K		$0.00	1.53K	Sep 1, 2021	Common Stock	1.53K	$129.50	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each Restricted Stock Unit represents a contingent right to receive one share of Aspen Technology, Inc. common stock. The Restricted Stock Units were fully vested on the date of grant.
F2	The Restricted Stock Units were received as a grant for no consideration.
F3	The option granted at the exercise price of $129.50 was fully vested on the date of grant.

Remarks:

On September 3, 2021, the reporting person filed a Form 4 which inadvertently contained errors in the details of the awards reported relative to the number of securities awarded, the exercise price of the option award and number of shares beneficially owned following the awards.