X0508 4 2024-07-01 0001897982 Aspen Technology, Inc. AZPN 0001176008 HENSHALL DAVID J C/O ASPEN TECHNOLOGY, INC. 20 CROSBY DRIVE BEDFORD MA 01730 1 0 Common Stock 2024-07-01 4 A 0 1196 0 A 2399 D Each Restricted Stock Unit represents a contingent right to receive one share of Aspen Technology, Inc. common stock. The Restricted Stock Units will fully vest on the last day of the fiscal year in which they were granted. The Restricted Stock Units were received as a grant for no consideration. /s/Mark E. Mouritsen, attorney-in-fact for Mr. Henshall 2024-07-03