SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                              --------------------

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


Date of Report (Date of earliest event reported):  April 4, 2002


                             ASPEN TECHNOLOGY, INC.
             (Exact name of registrant as specified in its charter)

DELAWARE                                0-24786            04-2739697
- ------------------------------------------------------------------------------
(State or other jurisdiction of         (Commission        (I.R.S. Employer
incorporation or organization)          File Number)       Identification No.)


                 Ten Canal Park, Cambridge, Massachusetts 02141
                 -----------------------------------------------
              (Address of principal executive office and zip code)


                                 (617) 949-1000
                                 --------------
              (Registrant's telephone number, including area code)

                                 --------------


ITEM 5. OTHER EVENTS

     On April 4, 2002, Aspen Technology, Inc. issued a press release announcing
preliminary financial results for the quarter ended March 31, 2002. A copy of
the press release is attached hereto as Exhibit 99.



                                    SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                             ASPEN TECHNOLOGY, INC.


Dated:  April 4, 2002                        By: /s/ Lisa W. Zappala
                                                ----------------------------
                                                 Lisa W. Zappala
                                                 Senior Vice President and
                                                 Chief Financial Officer


                                                                      Exhibit 99


ASPEN TECHNOLOGY ESTIMATES THIRD QUARTER 2002 RESULTS

CAMBRIDGE, Mass., April 4 /PRNewswire-FirstCall/ -- Aspen Technology, Inc.
(Nasdaq: AZPN - news), a leading provider of profit optimization solutions for
the process industries, today announced estimated financial results for its
third fiscal quarter ended March 31, 2002. Based on preliminary information,
AspenTech estimates that total revenues will range between $82 and $84 million,
with license revenues totalling between $36 and $38 million. The company expects
that services revenues will range between $45 and $46 million and that total
expenses are estimated to range between $88 and $90 million.

As a result, AspenTech expects it will post a third quarter operating loss
between $5 and $7 million. The company believes its third quarter performance
was adversely affected by continuing global economic uncertainties.

Due to a new accounting rule that is in effect for the first time in the March
quarter, both the services revenue and total expense estimates include
approximately $3 million of customer-related reimbursements that have been
netted out of results historically. Excluding these amounts, AspenTech estimates
that third quarter total revenues are approximately 5% below its revenue
estimates given in January and believes that expenses are approximately 4% above
its estimates.

"Although revenues fell somewhat shy of our goals, the overall tone of business
through most of the quarter was better than we had seen in quite some time,"
said Larry Evans, chairman & CEO. "We closed twenty percent more license
transactions than we closed in the December quarter, including nine license
transactions that were approximately $1 million or larger, as many customers
resumed IT investing that had been on hold since last year.

"Despite these encouraging signs, some customers remained cautious, delaying
commitments at the end of the quarter which we expected would offset spending
that was modestly above the levels we had previously forecasted. We believe we
can return to profitable operations in our seasonally strong June quarter, based
on solid, near-term pipeline opportunities and the spending cuts we will make.
We remain optimistic about our prospects for long-term growth and profitability
because of AspenTech's strong value proposition, excellent competitive
positioning, and improving leading economic indicators."

The company will host a conference call to discuss these preliminary financial
results on April 4, 2002 at 5:30 p.m. Eastern Time. Interested parties may
listen to a live Webcast of the call by logging on to AspenTech's website:
http://www.aspentech.com and clicking on the "Webcast" link under the Investor
Relations section of the site. Investors can also listen to the live conference
call by dialing 913-981-5509. A replay of the call will be archived on
AspenTech's website for seven days and will also be available for forty-eight
hours via telephone, beginning at 8:30 p.m. Eastern Time on April 4, 2002, by
dialing 719-457-0820 and entering in confirmation code 777297. AspenTech will
host a



conference call to discuss its actual third quarter financial results and the
outlook for the remainder of calendar 2002 on April 25, 2002 at 4:45 p.m.
Eastern Time.

About AspenTech

Aspen Technology, Inc. is a leading supplier of integrated software and
solutions to the process industries. The company's Aspen ProfitAdvantage(TM)
solution enables companies to identify and maximize profit opportunities
throughout their entire value chain -- from the supply of raw materials, through
the production of goods, to the delivery of final products to customers. The
Aspen ProfitAdvantage solution encompasses engineering, manufacturing, supply
chain and e-business collaboration technologies, providing the tools that enable
manufacturers to design, optimize and execute business processes in real time.
Over 1,200 leading process companies already rely on AspenTech's 21 years of
process industry experience to increase revenues, reduce costs and improve
capital efficiency. AspenTech's customers include: Air Liquide, AstraZeneca,
Bayer, BASF, BP, Chevron, Dow Chemical, DuPont, ExxonMobil, GlaxoSmithKline,
Lyondell Equistar, Merck, Mitsubishi Chemical, and Unilever. For more
information, visit http://www.aspentech.com.

Each of the first four paragraphs of this press release contain forward-looking
statements for purposes of the safe harbor provisions of the Private Securities
Litigation Reform Act of 1995. For this purpose, any statement using the term
"will," "should," "could," "anticipates," "believes" or a comparable term is a
forward-looking statement. Actual results may vary significantly from
AspenTech's expectations based on a number of risks and uncertainties,
including: AspenTech's lengthy sales cycle which makes it difficult to predict
quarterly operating results; fluctuations in AspenTech's quarterly operating
results; AspenTech's dependence on customers in the cyclical chemicals,
petrochemicals and petroleum industries; AspenTech's need to hire additional
qualified personnel and its dependence on key current employees; intense
competition; AspenTech's dependence on systems integrators and other strategic
partners; changes in the market for e-business solutions for AspenTech's
customers; increased governmental regulation and taxation of e-commerce and the
Internet; information security and privacy concerns relating to e-commerce; and
other risk factors described from time to time in AspenTech's periodic reports
filed with the Securities and Exchange Commission. AspenTech cannot guarantee
any future results, levels of activity, performance, or achievements.

AspenTech, Aspen ProfitAdvantage, and the aspen leaf logo are trademarks of
Aspen Technology, Inc., Cambridge, Mass.