PALO ALTO, Calif., September 7, 2000 – Informatica Corporation (NASDAQ: INFA) today announced it has filed a registration statement with the Securities and Exchange Commission with respect to a follow-on public offering of 2,500,000 shares of its common stock, of which 2,000,000 shares are being offered by Informatica and 500,000 shares are being offered by certain selling stockholders. Informatica will grant the underwriters an option to purchase up to 375,000 additional shares to cover over-allotments.

The managing underwriters for the proposed offering are Morgan Stanley Dean Witter, Credit Suisse First Boston, Robertson Stephens, Thomas Weisel Partners LLC and FAC/Equities.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold, nor may offers to buy be accepted, prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

When available, a copy of the preliminary prospectus relating to the offering may be obtained from the offices of Morgan Stanley Dean Witter, 1585 Broadway, New York, NY 10036, telephone 212-761-4000, or Credit Suisse First Boston Corporation, 11 Madison Avenue, Attn: Prospectus Dept, New York, NY 10010-3629, telephone 212-325-2000.

NOTE: Informatica is a registered trademark of Informatica Corporation.

Contact:

Tara Calhoun
Director of Investor Relations
Informatica Corporation
(650) 251-7025
tcalhoun@informatica.com