Exhibit 99.7 SENIOR SUBORDINATED PROMISSORY NOTEAspen Technology Inc /De/ • June 2nd, 2003 • Services-computer programming services • New York
Company FiledJune 2nd, 2003 Industry Jurisdiction
Exhibit 99.1 SECURITIES PURCHASE AGREEMENT by and among ASPEN TECHNOLOGY, INC. and THE SEVERAL PURCHASERS NAMED ON SCHEDULE 2.01 Dated June 1, 2003 TABLE OF CONTENTSSecurities Purchase Agreement • June 2nd, 2003 • Aspen Technology Inc /De/ • Services-computer programming services • Delaware
Contract Type FiledJune 2nd, 2003 Company Industry Jurisdiction
EXHIBIT 99.4 INVESTOR RIGHTS AGREEMENT BY AND AMONG ASPEN TECHNOLOGY, INC. AND THE STOCKHOLDERS NAMED HEREIN DATED , 2003 TABLE OF CONTENTSInvestor Rights Agreement • June 2nd, 2003 • Aspen Technology Inc /De/ • Services-computer programming services • Delaware
Contract Type FiledJune 2nd, 2003 Company Industry Jurisdiction
EXHIBIT 99.3Voting Agreement • June 2nd, 2003 • Aspen Technology Inc /De/ • Services-computer programming services • Delaware
Contract Type FiledJune 2nd, 2003 Company Industry Jurisdiction
PAGE ARTICLE I DEFINITIONS; PRINCIPLES OF INTERPRETATION ................ 1 Section 1.01 Definitions ....................................... 1 Section 1.02 Interpretation and Rules of Construction .......... 1 ARTICLE II CLOSING...Repurchase and Exchange Agreement • June 2nd, 2003 • Aspen Technology Inc /De/ • Services-computer programming services • Delaware
Contract Type FiledJune 2nd, 2003 Company Industry Jurisdiction