(AZPN)

Role: Senior VP & General Counsel
Signature: /s/ F. G. Hammond
Stock symbol: AZPN
Transactions as of: Jul 22, 2021
Transactions value $: -$462,388
Form type: 4
Date filed: 7/23/2021, 04:23 PM
Previous filing: Jul 14, 2021
Next filing: Aug 10, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AZPN	Common Stock	Sale	-$462K	-3.19K	-12.5%	$145.04	22.3K	Jul 22, 2021	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 25, 2021.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $145.00 to $145.13, inclusive. The reporting person undertakes to provide to Aspen Technology, Inc., any security holder of Aspen Technology, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the applicable range set forth in this footnote.

Content

The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 25, 2021.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $145.00 to $145.13, inclusive. The reporting person undertakes to provide to Aspen Technology, Inc., any security holder of Aspen Technology, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the applicable range set forth in this footnote.