SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 14, 1997 Pegasystems Inc. ---------------------------------------------------- (Exact Name of Registrant as Specified in Charter) Massachusetts 1-11859 04-2787865 ------------- ------- ---------- (State or Other Jurisdiction (Commission File (IRS Employer of Incorporation) Number) Identification Number) 101 Main Street, Cambridge, MA 02142 ------------------------------ ----- (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code: (617) 374-9600 Item 7. Financial Statements, Pro Forma Financial Information and Exhibits. Exhibit No. Description - ----------- ----------- 16.1 Letter of Ernst & Young LLP to the Securities and Exchange Commission SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has caused this report to be signed on behalf of the undersigned thereunto duly authorized. Date: November 17, 1997 PEGASYSTEMS INC. By: --------------------------- Ira Vishner Vice President, Corporate Services, Treasurer, Chief Financial Officer