content: <PAGE>
   
  ================================================================================
  
                       SECURITIES AND EXCHANGE COMMISSION
  
                              Washington, DC  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 20, 1999
  
  
  
  
                          CADENCE DESIGN SYSTEMS, INC.
               (Exact Name of Registrant as Specified in  Charter)
  
  
  
  
            Delaware                       1-10606                77-0148231
  (State or Other Jurisdiction        (Commission File         (I.R.S. Employer
        of Incorporation)                  Number)          Identification Number)
   
                           2655 Seely Road, Building 5
                           San Jose, California 95134
               (Address of Principal Executive Offices)(Zip Code)
  
  Registrant's telephone number, including area code: (408) 943-1234
   
  ================================================================================
  <PAGE>
   
  Item 5.    Other Events.
  ------------------------
  
       On April 20, 1999, Cadence Design Systems, Inc. (the "Registrant")
  announced its first quarter 1999 results.
  
       In addition, on April 27, 1999, the Registrant announced the appointment of
  H. Raymond Bingham to the position of President and Chief Executive Officer.
  Mr. Bingham has served as the Registrant's Chief Financial Officer since 1993,
  and replaces John R. Harding who resigned the position of President and CEO.
  
  
  Item 7.    Financial Statements, Pro Forma Financial Information and Exhibits.
  ------------------------------------------------------------------------------
  
  (c)  Exhibits
  
       Exhibit No.        Description
       -----------        -----------
  
          99.1            Press Release issued April 20, 1999.
  
          99.2            Press Release issued April 27, 1999.
  <PAGE>
   
                                   SIGNATURES
                                          
       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 hereunto duly authorized.
  
  Dated as of May 3, 1999.
  
                             CADENCE DESIGN SYSTEMS, INC.
  
                             By: /s/ R.L. Smith McKeithen
                                ---------------------------
                                R.L. Smith McKeithen
                                Senior Vice President and General Counsel
  <PAGE>
   
                                   EXHIBIT INDEX
                                                                  
                                                                  
  Exhibit No.     Document                                        
  ------------    ----------------------------------------------  
  Exhibit 99.1    Press Release issued April 20, 1999
  Exhibit 99.2    Press Release issued April 27, 1999.
metadata_documents: [{"type": "8-K", "sequence": "1", "description": "FORM 8-K", "secsgml_size_bytes": 3181}]
metadata_filer: {"company-data": {"conformed-name": "CADENCE DESIGN SYSTEMS INC", "cik": "0000813672", "assigned-sic": "7372", "irs-number": "770148231", "state-of-incorporation": "DE", "fiscal-year-end": "0102"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-10606", "film-number": "99611855"}, "business-address": {"street1": "2655 SEELY ROAD BLDG 5", "city": "SAN JOSE", "state": "CA", "zip": "95134", "phone": "4089431234"}, "mail-address": {"street1": "555 RIVER OAKS PARKWAY", "city": "SAN JOSE", "state": "CA", "zip": "95134"}, "former-company": {"former-conformed-name": "ECAD INC /DE/", "date-changed": "19880609"}}
text: ================================================================================
  
                       SECURITIES AND EXCHANGE COMMISSION
  
                              Washington, DC  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 20, 1999
  
                          CADENCE DESIGN SYSTEMS, INC.
               (Exact Name of Registrant as Specified in  Charter)
  
            Delaware                       1-10606                77-0148231
  (State or Other Jurisdiction        (Commission File         (I.R.S. Employer
        of Incorporation)                  Number)          Identification Number)
   
                           2655 Seely Road, Building 5
                           San Jose, California 95134
               (Address of Principal Executive Offices)(Zip Code)
  
  Registrant's telephone number, including area code: (408) 943-1234
   
  ================================================================================
  Item 5.    Other Events.
  ------------------------
  
       On April 20, 1999, Cadence Design Systems, Inc. (the "Registrant")
  announced its first quarter 1999 results.
  
       In addition, on April 27, 1999, the Registrant announced the appointment of
  H. Raymond Bingham to the position of President and Chief Executive Officer.
  Mr. Bingham has served as the Registrant's Chief Financial Officer since 1993,
  and replaces John R. Harding who resigned the position of President and CEO.
  
  Item 7.    Financial Statements, Pro Forma Financial Information and Exhibits.
  ------------------------------------------------------------------------------
  
  (c)  Exhibits
  
       Exhibit No.        Description
       -----------        -----------
  
          99.1            Press Release issued April 20, 1999.
  
          99.2            Press Release issued April 27, 1999.
  SIGNATURES
                                          
       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 hereunto duly authorized.
  
  Dated as of May 3, 1999.
  
                             CADENCE DESIGN SYSTEMS, INC.
  
                             By: /s/ R.L. Smith McKeithen
                                ---------------------------
                                R.L. Smith McKeithen
                                Senior Vice President and General Counsel
  EXHIBIT INDEX
                                                                  
                                                                  
  Exhibit No.     Document                                        
  ------------    ----------------------------------------------  
  Exhibit 99.1    Press Release issued April 20, 1999
  Exhibit 99.2    Press Release issued April 27, 1999.