X0306 4 2022-06-01 0001897982 Aspen Technology, Inc. AZPN 0001407695 Pietri Antonio J C/O ASPEN TECHNOLOGY, INC. 20 CROSBY DRIVE BEDFORD MA 01730 1 1 President & CEO Common Stock 2022-06-01 4 A 0 40313 0 A 178700 D Common Stock Option (Right to Buy) 193.49 2022-06-01 4 A 0 74851 193.49 A 2032-05-31 Common Stock 74851 74851 D 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 (subject to rounding) consecutive quarterly installments on the last business day of the quarter beginning with the quarter ending June 30, 2022. The Restricted Stock Units were received as a grant for no consideration. The option granted at the exercise price of $193.49 vests in 16 equal (subject to rounding) consecutive quarterly installments on the last business day of the quarter beginning with the quarter ending June 30, 2022. /s/ F.G. Hammond, attorney-in-fact for Mr. Pietri 2022-06-03