content: <PAGE>
  
                         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):  June 3, 1999
  
                              ASYST TECHNOLOGIES, INC.
               (Exact name of registrant as specified in its charter)
  
                                     California
                   (State or other jurisdiction of incorporation)
  
  
  
       000-22430                                             94-2944251
  (Commission File No.)                          (IRS Employer Identification No.)
  
  
                                  48761 Kato Road
                             Fremont, California 94538
               (Address of principal executive offices and zip code)
  
         Registrant's telephone number, including area code: (510) 661-5000
  
                                         1
  <PAGE>
  
          This Current Report on Form 8-K contains forward looking statements that
  involve risks and uncertainties relating to the acquisition by Asyst
  Technologies, Inc., a California corporation ("Asyst"), of Progressive System
  Technologies, Inc., a Texas corporation ("PSTI") and the private placement of
  625,000 shares of Asyst common stock. Actual results and developments may differ
  materially from those described in this Current Report. For more information
  about Asyst and risks relating to investing in Asyst, refer to Asyst's most
  recent reports on Form 10-Q and Form 10-K.
  
  Item 2. Acquisition or Disposition of Assets.
  
         On June 3, 1999, Asyst completed the acquisition of PSTI by merging PSTI
  Merger Sub Acquisition Corp. ("Merger Sub") with and into PSTI with PSTI
  surviving as the wholly owned subsidiary of Asyst. The acquisition was
  accomplished pursuant to an Agreement and Plan of Merger and Reorganization,
  dated as of June 2, 1999 (the "Reorganization Agreement") among Asyst, Merger
  Sub, PSTI, Advent International Investor II, Envirotech Fund I and Global
  Private Equity II. In connection with the acquisition, certain debt holders,
  option holders and holders of PSTI capital stock outstanding on June 3, 1999
  received shares of Asyst common stock. The purchase price was arrived at through
  arms-length negotiations. The total number of shares of Asyst common stock
  issued in connection with the acquisition was 500,000 shares. In addition to the
  payment of shares of Asyst common stock, Asyst assumed certain outstanding
  options to purchase PSTI common stock, which were converted into options to
  purchase up to approximately 5,500 Asyst shares with exercise prices
  significantly above Asyst's current price, and Asyst assumed and repaid PSTI's
  bank debt of approximately $1.23 million. The acquisition will be accounted for
  as a pooling of interests.
  
         PSTI is a supplier of substrate management systems for open-cassette,
  SMIF-integrated wafer logistics and reticle automation. Asyst currently intends
  to maintain PSTI as a wholly-owned subsidiary and to have PSTI continue to
  conduct its business as historically conducted.
  
        A copy of the press release announcing the signing of the Letter of Intent
  is attached hereto as Exhibit 99.1 and incorporated by reference herein. A copy
  of the press release announcing the consummation of the acquisition is attached
  hereto as Exhibit 99.2 and incorporated by reference herein.
  
  Item 5. Other Events.
  
         On May 26, 1999, Asyst completed the private placement of 625,000 shares
  of Asyst common stock to eight institutional investors. The private placement
  was accomplished pursuant to a Common Stock Purchase Agreement, dated as of May
  26, 1999, among Asyst and the purchasers thereto. The private placement was
  priced at $18.00 per share, for aggregate proceeds to Asyst of approximately
  $11.3 million. The purpose of the private placement was to untaint shares of
  Asyst common stock to obtain pooling of interests accounting treatment for the
  acquisition of PSTI. The proceeds will be used for general corporate purposes.
  
         A copy of the press release announcing the consummation of the private
  placement is attached hereto as Exhibit 99.2 and incorporated by reference
  herein.
  
                                         2
  <PAGE>
  
  Item 7.    Financial Statements, Pro Forma Financial Information and Exhibits.
  
        (a)  Financial Statements of Businesses Acquired.
             -------------------------------------------
  
        The Registrant believes that it would be impractical to provide the
  required financial statements at the time this Report on Form 8-K is filed.
  The Registrant intends to file such financial information as an amendment to
  this Form 8-K within 60 days of the date hereof.
  
        (b)  Pro Forma Financial Information
             -------------------------------
  
        The Registrant believes that it would be impractical to provide the
  required pro forma financial information at the time this Report on Form 8-K is
  filed. The Registrant intends to file such financial information as an amendment
  to this Form 8-K within 60 days of the date hereof.
  
                                         3
  <PAGE>
  
         (c) Exhibits.
             --------
  
    Exhibit No.  Description
    -----------  -----------
  
       2.1       Agreement and Plan of Merger and Reorganization, dated as of June
                 2, 1999, among Asyst Technologies, Inc., PSTI Merger Sub
                 Acquisition Corp., Progressive System Technologies, Inc., Advent
                 International Investor II, Envirotech Fund I and Global Private
                 Equity II (the Disclosure Schedule has been omitted as permitted
                 pursuant to the rules and regulations of the Securities and
                 Exchange Commission ("SEC"), but will be furnished supplementally
                 to the SEC upon request).
  
       2.2       Escrow Agreement, dated as of June 2, 1999, among Asyst
                 Technologies, Inc., Progressive System Technologies, Inc., State
                 Street Bank and Trust Company of California, N.A. as Escrow
                 Agent, and certain shareholders of Progressive System
                 Technologies, Inc.
  
       2.3       Common Stock Purchase Agreement, dated as of May 26, 1999, among
                 Asyst Technologies, Inc. and the purchasers thereto.
  
       4.1       Reference is made to Exhibits 2.1 and 2.2.
  
       99.1      Press release announcing the execution of the Letter of Intent.
  
       99.2      Press release announcing the consummation of the acquisition and
                 the private placement.
  
                                         4
  <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.
  
  
  
                                          ASYST TECHNOLOGIES, INC.
  
  
  
    Dated:  June 17, 1999                 By:   /s/ Douglas J. McCutcheon
    ---------------------                     ---------------------------
                                                Douglas J. McCutcheon
                                                Senior Vice President and
                                                Chief Financial Officer
  
                                         5
  <PAGE>
  
                                   EXHIBIT INDEX
  
  
  Exhibit No.    Description
  -----------    -----------
  
       2.1       Agreement and Plan of Merger and Reorganization, dated as of June
                 2, 1999, among Asyst Technologies, Inc., PSTI Merger Sub
                 Acquisition Corp., Progressive System Technologies, Inc., Advent
                 International Investor II, Envirotech Fund I and Global Private
                 Equity II (the Disclosure Schedule has been omitted as permitted
                 pursuant to the rules and regulations of the Securities and
                 Exchange Commission ("SEC"), but will be furnished supplementally
                 to the SEC upon request).
  
       2.2       Escrow Agreement, dated as of June 2, 1999, among Asyst
                 Technologies, Inc., Progressive System Technologies, Inc., State
                 Street Bank and Trust Company of California, N.A. as Escrow
                 Agent, and certain shareholders of Progressive System
                 Technologies, Inc.
  
       2.3       Common Stock Purchase Agreement, dated as of May 26, 1999, among
                 Asyst Technologies, Inc. and the purchasers thereto.
  
       4.1       Reference is made to Exhibits 2.1 and 2.2.
  
       99.1      Press release announcing the execution of the Letter of Intent.
  
       99.2      Press release announcing the consummation of the acquisition and
                 the private placement.
  
                                         1
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text: 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):  June 3, 1999
  
                              ASYST TECHNOLOGIES, INC.
               (Exact name of registrant as specified in its charter)
  
                                     California
                   (State or other jurisdiction of incorporation)
  
       000-22430                                             94-2944251
  (Commission File No.)                          (IRS Employer Identification No.)
  
                                  48761 Kato Road
                             Fremont, California 94538
               (Address of principal executive offices and zip code)
  
         Registrant's telephone number, including area code: (510) 661-5000
  
                                         1
  This Current Report on Form 8-K contains forward looking statements that
  involve risks and uncertainties relating to the acquisition by Asyst
  Technologies, Inc., a California corporation ("Asyst"), of Progressive System
  Technologies, Inc., a Texas corporation ("PSTI") and the private placement of
  625,000 shares of Asyst common stock. Actual results and developments may differ
  materially from those described in this Current Report. For more information
  about Asyst and risks relating to investing in Asyst, refer to Asyst's most
  recent reports on Form 10-Q and Form 10-K.
  
  Item 2. Acquisition or Disposition of Assets.
  
         On June 3, 1999, Asyst completed the acquisition of PSTI by merging PSTI
  Merger Sub Acquisition Corp. ("Merger Sub") with and into PSTI with PSTI
  surviving as the wholly owned subsidiary of Asyst. The acquisition was
  accomplished pursuant to an Agreement and Plan of Merger and Reorganization,
  dated as of June 2, 1999 (the "Reorganization Agreement") among Asyst, Merger
  Sub, PSTI, Advent International Investor II, Envirotech Fund I and Global
  Private Equity II. In connection with the acquisition, certain debt holders,
  option holders and holders of PSTI capital stock outstanding on June 3, 1999
  received shares of Asyst common stock. The purchase price was arrived at through
  arms-length negotiations. The total number of shares of Asyst common stock
  issued in connection with the acquisition was 500,000 shares. In addition to the
  payment of shares of Asyst common stock, Asyst assumed certain outstanding
  options to purchase PSTI common stock, which were converted into options to
  purchase up to approximately 5,500 Asyst shares with exercise prices
  significantly above Asyst's current price, and Asyst assumed and repaid PSTI's
  bank debt of approximately $1.23 million. The acquisition will be accounted for
  as a pooling of interests.
  
         PSTI is a supplier of substrate management systems for open-cassette,
  SMIF-integrated wafer logistics and reticle automation. Asyst currently intends
  to maintain PSTI as a wholly-owned subsidiary and to have PSTI continue to
  conduct its business as historically conducted.
  
        A copy of the press release announcing the signing of the Letter of Intent
  is attached hereto as Exhibit 99.1 and incorporated by reference herein. A copy
  of the press release announcing the consummation of the acquisition is attached
  hereto as Exhibit 99.2 and incorporated by reference herein.
  
  Item 5. Other Events.
  
         On May 26, 1999, Asyst completed the private placement of 625,000 shares
  of Asyst common stock to eight institutional investors. The private placement
  was accomplished pursuant to a Common Stock Purchase Agreement, dated as of May
  26, 1999, among Asyst and the purchasers thereto. The private placement was
  priced at $18.00 per share, for aggregate proceeds to Asyst of approximately
  $11.3 million. The purpose of the private placement was to untaint shares of
  Asyst common stock to obtain pooling of interests accounting treatment for the
  acquisition of PSTI. The proceeds will be used for general corporate purposes.
  
         A copy of the press release announcing the consummation of the private
  placement is attached hereto as Exhibit 99.2 and incorporated by reference
  herein.
  
                                         2
  Item 7.    Financial Statements, Pro Forma Financial Information and Exhibits.
  
        (a)  Financial Statements of Businesses Acquired.
             -------------------------------------------
  
        The Registrant believes that it would be impractical to provide the
  required financial statements at the time this Report on Form 8-K is filed.
  The Registrant intends to file such financial information as an amendment to
  this Form 8-K within 60 days of the date hereof.
  
        (b)  Pro Forma Financial Information
             -------------------------------
  
        The Registrant believes that it would be impractical to provide the
  required pro forma financial information at the time this Report on Form 8-K is
  filed. The Registrant intends to file such financial information as an amendment
  to this Form 8-K within 60 days of the date hereof.
  
                                         3
  (c) Exhibits.
             --------
  
    Exhibit No.  Description
    -----------  -----------
  
       2.1       Agreement and Plan of Merger and Reorganization, dated as of June
                 2, 1999, among Asyst Technologies, Inc., PSTI Merger Sub
                 Acquisition Corp., Progressive System Technologies, Inc., Advent
                 International Investor II, Envirotech Fund I and Global Private
                 Equity II (the Disclosure Schedule has been omitted as permitted
                 pursuant to the rules and regulations of the Securities and
                 Exchange Commission ("SEC"), but will be furnished supplementally
                 to the SEC upon request).
  
       2.2       Escrow Agreement, dated as of June 2, 1999, among Asyst
                 Technologies, Inc., Progressive System Technologies, Inc., State
                 Street Bank and Trust Company of California, N.A. as Escrow
                 Agent, and certain shareholders of Progressive System
                 Technologies, Inc.
  
       2.3       Common Stock Purchase Agreement, dated as of May 26, 1999, among
                 Asyst Technologies, Inc. and the purchasers thereto.
  
       4.1       Reference is made to Exhibits 2.1 and 2.2.
  
       99.1      Press release announcing the execution of the Letter of Intent.
  
       99.2      Press release announcing the consummation of the acquisition and
                 the private placement.
  
                                         4
  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.
  
                                          ASYST TECHNOLOGIES, INC.
  
    Dated:  June 17, 1999                 By:   /s/ Douglas J. McCutcheon
    ---------------------                     ---------------------------
                                                Douglas J. McCutcheon
                                                Senior Vice President and
                                                Chief Financial Officer
  
                                         5
  EXHIBIT INDEX
  
  Exhibit No.    Description
  -----------    -----------
  
       2.1       Agreement and Plan of Merger and Reorganization, dated as of June
                 2, 1999, among Asyst Technologies, Inc., PSTI Merger Sub
                 Acquisition Corp., Progressive System Technologies, Inc., Advent
                 International Investor II, Envirotech Fund I and Global Private
                 Equity II (the Disclosure Schedule has been omitted as permitted
                 pursuant to the rules and regulations of the Securities and
                 Exchange Commission ("SEC"), but will be furnished supplementally
                 to the SEC upon request).
  
       2.2       Escrow Agreement, dated as of June 2, 1999, among Asyst
                 Technologies, Inc., Progressive System Technologies, Inc., State
                 Street Bank and Trust Company of California, N.A. as Escrow
                 Agent, and certain shareholders of Progressive System
                 Technologies, Inc.
  
       2.3       Common Stock Purchase Agreement, dated as of May 26, 1999, among
                 Asyst Technologies, Inc. and the purchasers thereto.
  
       4.1       Reference is made to Exhibits 2.1 and 2.2.
  
       99.1      Press release announcing the execution of the Letter of Intent.
  
       99.2      Press release announcing the consummation of the acquisition and
                 the private placement.
  
                                         1