Christopher Stagno - 01 Sep 2021 Form 4 Insider Report for ASPEN TECHNOLOGY INC /DE/ (AZPN)

Role: SVP, Chief Accounting Officer
Signature: /s/F.G. Hammond, attorney-in-fact for Mr. Stagno
Issuer symbol: AZPN
Transactions as of: 01 Sep 2021
Net transactions value: +$215,488
Form type: 4
Filing time: 03 Sep 2021, 16:37:17 UTC
Previous filing: 02 Jul 2021
Next filing: 04 Oct 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AZPN	Common Stock	Award	$0	+1,448	+102%	$0.000000	2,867	01 Sep 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	Common Stock Option (Right to Buy)	Award	$215,488	+1,664		$129.50^*	1,664	01 Sep 2021	Common Stock	1,664	$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 vest in 16 equal consecutive quarterly installments on the last business day of the quarter beginning with the quarter ending September 30, 2021.
F2	The Restricted Stock Units were received as a grant for no consideration.
F3	The option granted at the exercise price of $129.50 vests in 16 equal consecutive quarterly installments on the last business day of the quarter, beginning with the quarter ending September 30, 2021.