ASYST TECHNOLOGIES INC /CA/
8-K, 1998-06-29
SPECIAL INDUSTRY MACHINERY, NEC
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<PAGE>
 
                       SECURITIES AND EXCHANGE COMMISSION

                            Washington, D. C.  20549

                                    FORM 8-K


                     Pursuant to Section 13 or 15(d) of the
                        Securities Exchange Act of 1934


        Date of Report (Date of earliest event reported):  June 25, 1998



                            ASYST TECHNOLOGIES, INC.
             (Exact name of registrant as specified in its charter)


                                   CALIFORNIA
                 (State or other jurisdiction of incorporation)



       0-22114                                            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



                  -------------------------------------------
<PAGE>
 
Item 5.  Other Events.
         ------------ 

          On June 22, 1998 the Board of Directors of Asyst Technologies, Inc.
(the "Company") approved the adoption of a Share Purchase Rights Plan (the
"Plan").  Terms of the Plan provide for a dividend distribution of one preferred
share purchase right (a "Right") for each outstanding share of common stock,
without par value per share (the "Common Shares"), of the Company.  The dividend
is payable on July 10, 1998 (the "Record Date") to the shareholders of record on
that date.  Each Right entitles the registered holder to purchase from the
Company one one-hundredth of a share of Series A Junior Participating Preferred
Stock, without par value per share (the "Preferred Shares"), at a price of $140
per one one-hundredth of a Preferred Share (the "Purchase Price"), subject to
adjustment.  Each one one-hundredth of a share of Preferred Shares has
designations and powers, preferences and rights, and the qualifications,
limitations and restrictions which make its value approximately equal to the
value of a Common Share.  The description and terms of the Rights are set forth
in a Rights Agreement (the "Rights Agreement"), dated as of June 25, 1998
entered into between the Company and BankBoston, N.A., as rights agent (the
"Rights Agent").

          Initially, the Rights will be evidenced by the stock certificates
representing the Common Shares then outstanding, and no separate Right
Certificates (as defined in the Rights Agreement) will be distributed.  Until
the earlier to occur of (i) the date of a public announcement that a person,
entity or group of affiliated or associated persons have acquired beneficial
ownership of 15% or more of the outstanding Common Shares (an "Acquiring
Person") or (ii) 10 business days (or such later date as may be determined by
action of the Board of Directors prior to such time as any person or entity
becomes an Acquiring Person) following the commencement of, or announcement of
an intention to commence, a tender offer or exchange offer the consummation of
which would result in any person or entity becoming an Acquiring Person (the
earlier of such dates being called the "Distribution Date"), the Rights will be
evidenced, with respect to any of the Common Share certificates outstanding as
of the Record Date, by such Common Share certificate with or without a copy of
the Summary of Rights, which is included in the Rights Agreement as Exhibit C
thereof (the "Summary of Rights").

          Until the Distribution Date, the Rights will be transferable with and
only with the Common Shares.  Until the Distribution Date (or earlier redemption
or expiration of the Rights), new Common Share certificates issued after the
Record Date, upon transfer or new issuance of Common Shares, will contain a
notation incorporating the Rights Agreement by reference.  Until the
Distribution Date (or earlier redemption or expiration of the Rights), the
surrender or transfer of any certificates for Common Shares outstanding as of
the Record Date, even without such notation or a copy of the Summary of Rights
being attached thereto, will also constitute the transfer of the Rights
associated with the Common Shares represented by such certificate.  As soon as
practicable following the Distribution Date, separate certificates evidencing
the Rights ("Right Certificates") will be mailed to holders of record of the
Common Shares as of the close of business on the Distribution Date and such
separate Right Certificates alone will evidence the Rights.

                                       1
<PAGE>
 
          The Rights are not exercisable until the Distribution Date.  The
Rights will expire on July 10, 2008 (the "Final Expiration Date"), unless the
Rights are earlier redeemed or exchanged by the Company, in each case, as
described below.

          The Purchase Price payable, and the number of Preferred Shares or
other securities or other property, upon exercise of the Rights are subject to
adjustment from time to time to prevent dilution (i) in the event of a stock
dividend on, or a subdivision, combination or reclassification of, the Preferred
Shares, (ii) upon the grant to holders of the Preferred Shares of certain rights
or warrants to subscribe for or purchase Preferred Shares at a price, or
securities convertible into Preferred Shares with a conversion price, less than
the then current market price of the Preferred Shares or (iii) upon the
distribution to holders of the Preferred Shares of evidences of indebtedness or
assets (excluding regular periodic cash dividends paid out of earnings or
retained earnings or dividends payable in Preferred Shares) or of subscription
rights or warrants (other than those referred to above).  The exercise of Rights
for Preferred Shares is at all times subject to the availability of a sufficient
number of authorized but unissued Preferred Shares.

          The number of outstanding Rights and the number of one one-hundredths
of a Preferred Share issuable upon exercise of each Right are also subject to
adjustment in the event of a stock split of the Common Shares or a stock
dividend on the Common Shares payable in Common Shares or subdivisions,
consolidation or combinations of the Common Shares occurring, in any case, prior
to the Distribution Date.

          Preferred Shares purchasable upon exercise of the Rights will not be
redeemable.  Each Preferred Share will be entitled to a minimum preferential
quarterly dividend payment of $1.00 but will be entitled to an aggregate
dividend of 100 times the dividend declared per Common Share.  In the event of
liquidation, the holders of the Preferred Shares would be entitled to a minimum
preferential liquidation payment of $100 per share, but would be entitled to
receive an aggregate payment equal to 100 times the payment made per Common
Share.  Each Preferred Share will have 100 votes, voting together with the
Common Shares.  Finally, in the event of any merger, consolidation or other
transaction in which Common Shares are exchanged, each Preferred Share will be
entitled to receive 100 times the amount of consideration received per Common
Share.  These rights are protected by customary anti-dilution provisions.
Because of the nature of the Preferred Shares' dividend and liquidation rights,
the value of one one-hundredth of a Preferred Share should approximate the value
of one Common Share.  The Preferred Shares would rank junior to any other series
of the Company's preferred stock.

          In the event that any person or group of affiliated or associated
persons becomes an Acquiring Person, proper provision shall be made so that each
holder of a Right, other than Rights beneficially owned by the Acquiring Person
and its associates and affiliates (which will thereafter be void), will for a
60-day period have the right to receive upon exercise that number of Common
Shares having a market value of two times the exercise price of the Right (or,
if such number of shares is not and cannot be authorized, the Company may issue
Preferred Shares, cash, debt, stock or a combination thereof in exchange for the
Rights).  This right will terminate 60 days after the date on which the Rights
become nonredeemable (as described below), unless 

                                       2
<PAGE>
 
there is an injunction or similar obstacle to exercise of the Rights, in which
event this right will terminate 60 days after the date on which the Rights again
become exercisable.

          Generally, under the Plan, an "Acquiring Person" shall not be deemed
to include (i) the Company, (ii) a subsidiary of the Company, (iii) any employee
benefit or compensation plan of the Company, or (iv) any entity holding Common
Shares for or pursuant to the terms of any such employee benefit or compensation
plan.  In addition, except under limited circumstances, no person or entity
shall become an Acquiring Person as the result of the acquisition of Common
Shares by the Company which, by reducing the number of shares outstanding,
increases the proportionate number of shares beneficially owned by such person
or entity to 15% or more of the Common Shares then outstanding.  Further, except
under certain circumstances, no person shall become an Acquiring Person due to
the acquisition of Common Shares directly from the Company.

          In the event that the Company is acquired in a merger or other
business combination transaction or 50% or more of its consolidated assets or
earning power are sold to an Acquiring Person, its associates or affiliates or
certain other persons in which such persons have an interest, proper provision
will be made so that each holder of a Right will thereafter have the right to
receive, upon the exercise thereof at the then current exercise price of the
Right, that number of shares of common stock of the acquiring company which at
the time of such transaction will have a market value of two times the exercise
price of the Right.

          At any time after an Acquiring Person becomes an Acquiring Person and
prior to the acquisition by such Acquiring Person of 50% or more of the
outstanding Common Shares, the Board of Directors of the Company may exchange
the Rights (other than Rights owned by such person or group which have become
void), in whole or in part, at an exchange ratio of one Common Share, or one
one-hundredth of a Preferred Share, per Right (or, at the election of the
Company, the Company may issue cash, debt, stock or a combination thereof in
exchange for the Rights), subject to adjustment.

          With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments require an adjustment of at least 1% in
such Purchase Price.  No fractional Preferred Shares will be issued (other than
fractions which are integral multiples of the number of one one-hundredths of a
Preferred Share issuable upon the exercise of one Right, which may, at the
election of the Company, be evidenced by depositary receipts), and in lieu
thereof, an adjustment in cash will be made based on the market price of the
Preferred Shares on the last trading day prior to the date of exercise.

          At any time prior to the earliest of (i) the day of the first public
announcement that a person has become an Acquiring Person or (ii) the Final
Expiration Date, the Board of Directors of the Company may redeem the Rights in
whole, but not in part, at a price of $.01 per Right (the "Redemption Price").
Following the expiration of the above periods, the Rights become nonredeemable.
Immediately upon any redemption of the Rights, the right to exercise the Rights
will terminate and the only right of the holders of Rights will be to receive
the Redemption Price.

                                       3
<PAGE>
 
          The terms of the Rights may be amended by the Board of Directors of
the Company without the consent of the holders of the Rights, except that from
and after such time as the rights are distributed no such amendment may
adversely affect the interest of the holders of the Rights excluding the
interests of an Acquiring Person.

          Until a Right is exercised, the holder thereof, as such, will have no
rights as a shareholder of the Company, including, without limitation, the right
to vote or to receive dividends.

          The Rights have certain anti-takeover effects.  The Rights will cause
substantial dilution to a person or group that attempts to acquire the Company
on terms not approved by the Company's Board of Directors.  The Rights should
not interfere with any merger or other business combination approved by the
Board of Directors since the Rights may be amended to permit such acquisition or
redeemed by the Company at $.01 per Right prior to the earliest of (i) the time
that a person or group has acquired beneficial ownership of 15% or more of the
Common Shares or (ii) the final expiration date of the rights.


Item 7.  Exhibits.
         -------- 

          99.1  Press Release, dated as of June 25, 1998.

          99.2  Rights Agreement dated as of June 25, 1998 among Asyst
          Technologies, Inc. and BankBoston, N.A.

                                       4
<PAGE>
 
                                   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.


                                        ASYST TECHNOLOGIES, INC.


Dated:  June 29, 1998                   By:   /s/ Douglas J. McCutcheon
                                            --------------------------------
                                              Douglas J. McCutcheon

                                        Title:  Senior Vice President
                                                and Chief Financial Officer
 

                                       5
<PAGE>
 
                               INDEX TO EXHIBITS
                               -----------------



          99.1  Press Release, dated as of June 25, 1998.

          99.2  Rights Agreement dated as of June 25, 1998 among Asyst
          Technologies, Inc. and BankBoston, N.A.

                                       6

<PAGE>

                                                                    EXHIBIT 99.1
 
                                                       A S Y S T
                                                  ASYST TECHNOLOGIES, INC.
                                                  48761 KATO ROAD
                                                  FREMONT, CA 94538

                                                  TEL: 510.661.5000
                                                  FAX: 510.661.5166

CONTACT:   Laura Guerrant (Financial Community)   AGENCY:  Sheryl Moreno
           Asyst Technologies, Inc.               MCA, Inc.
           510/661-5000                           650/968-8900
           510/661-5160 (fax)                     650/968-8990 (fax)

           Lori Cox (Editorial/Media)
           Asyst Technologies, Inc.
           510/661-5000
           510/661-5166 (fax)

        ASYST TECHNOLOGIES, INC. ANTICIPATES LOWER THAN EXPECTED REVENUE
                        FOR FIRST QUARTER OF FISCAL 1999
                   COMPANY ANNOUNCES SHAREHOLDER RIGHTS PLAN
                                        
FREMONT, Calif., June 25, 1998 Asyst Technologies, Inc. (Nasdaq:ASYT), the
leading supplier of manufacturing automation and Standard Mechanical InterFace
(SMIF) isolation to the global semiconductor industry, announced today that it
expects to report lower than anticipated total revenue for the first quarter
fiscal year 1999 ending June 27, 1998.  The Company expects to report revenue
for the first quarter in the range of $32 to $35 million.

"Visibility remains very limited and business has recently weakened further,"
said Dr. Mihir Parikh, chairman and chief executive officer.  "As a result, we
have seen a softening of orders.  Due to the uncertain outlook in Asia at this
time, it is likely that revenue for the second quarter of fiscal 1999 (September
end) will be lower than in the first fiscal quarter.

"We feel it prudent to continue with the steps previously planned to reduce our
expense growth in the near term, while continuing to invest in critical
strategic areas.  Despite the present uncertain outlook for fiscal 1999, we
believe that we are positioned to rebound quickly upon return of normal market
conditions given our strategic position in providing customers with a complete
tool automation solution," concluded Parikh.

These statements are preliminary.  The Company plans to announce actual results
for the first quarter on July 22, 1998 after the close of market.

In further developments, the Company's Board of Directors approved the adoption
of a Shareholder Rights Plan under which all shareholders of record as of July
10, 1998 will receive rights to purchase shares of a new series of Preferred
Stock.

The Rights Plan is designed to enable all Asyst shareholders to realize the full
value of their investment and to provide for fair and equal treatment for all
shareholders in the event that an unsolicited attempt is made to acquire Asyst.
The adoption of the Rights Plan is intended as a means to guard against abusive
takeover tactics and is not in response to any particular proposal.

The rights will be distributed as a non-taxable dividend and will expire in 10
years from the Record Date.  The rights will be exercisable only if a person or
group acquires 15 percent or more of the Asyst Common Stock or announces a
tender offer for 15 percent or more of the Common Stock.  If a person acquires
15 percent or more of Asyst's Common Stock, all rightsholders except the buyer
will be entitled to acquire Asyst Common Stock at a discount.  The effect will
be to discourage acquisitions of more than 15 percent of Asyst's Common Stock
without negotiations with the Board.

                                     -MORE-
<PAGE>
 
ASYST ANTICIPATES LOWER THAN EXPECTED REVENUE FOR 1Q FY99 . . . . . Page 2 of 2

The rights will trade with Asyst's Common  Stock, unless and until they are
separated upon the occurrence of certain future events.  The rights distribution
is not taxable to the shareholders.  Asyst's Board of Directors may terminate
the Rights Plan at any time or redeem the rights prior to the time a person
acquires more than 15 percent of the Asyst Common Stock.  Additional details
regarding the Rights Plan will be outlined in a summary to be mailed to all
shareholders following the Record Date.

Except for statements of historical fact, the statements in this press release
are forward-looking.  Such statements are subject to a number of risks and
uncertainties that could cause actual results to differ materially from the
statements made.  These factors include, but are not limited to, general
economic conditions, semiconductor industry cycles, risks associated with the
acceptance of new products and product capabilities, and other factors more
fully detailed in the Company's most recent Forms 10-K annual report and 10-Q
quarterly report on file with the SEC.

ABOUT ASYST:  The pioneer of the Standard Mechanical InterFace (SMIF), Asyst
Technologies, Inc. is the leading provider of automated material handling
systems critical to seamless factory automation in the most advanced fabs
worldwide.  Asyst's comprehensive solutions, which include industry-leading 200
mm and 300 mm product offerings, result in greater fab profitability and
productivity.  Through innovative developments in the software and integration
services area, Asyst Software, Inc., a wholly owned subsidiary, provides
integrated circuit (IC) manufacturers fully automated solutions addressing their
most advanced manufacturing challenges.  Founded in 1984, Asyst Technologies,
Inc. is headquartered in Fremont, Calif., with facilities in Europe and the
Pacific Rim.  Asyst Software, Inc., is located in San Jose, CA.  Asyst's
homepage is located on the World Wide Web at http://www.asyst.com

                                     # # #

<PAGE>
 
                                                                    EXHIBIT 99.2


          ___________________________________________________________
                                        
                            ASYST TECHNOLOGIES, INC.
                                        
                                      AND
                                        
                                BANKBOSTON, N.A.
                                AS RIGHTS AGENT
                                        
                                RIGHTS AGREEMENT
                                        
                           DATED AS OF JUNE 25, 1998
                                        
          ___________________________________________________________

                                      1
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
 
                                                                                                                  PAGE
<S>           <C>                                                                                                <C>
Section 1.    Certain Definitions..............................................................................     1
Section 2.    Appointment of Rights Agent......................................................................     5
Section 3.    Issue of Right Certificates......................................................................     5
Section 4.    Form of Right Certificates.......................................................................     7
Section 5.    Countersignature and Registration................................................................     7
Section 6.    Transfer, Split Up, Combination and Exchange of Right Certificates; Mutilated, Destroyed, Lost
              or Stolen Right Certificates.....................................................................     8
Section 7.    Exercise of Rights; Purchase Price; Expiration Date of Rights....................................     9
Section 8.    Cancellation and Destruction of Right Certificates...............................................    11
Section 9.    Availability of Preferred Shares.................................................................    11
Section 10.   Preferred Shares Record Date.....................................................................    12
Section 11.   Adjustment of Purchase Price, Number of Shares or Number of Rights...............................    12
Section 12.   Certificate of Adjusted Purchase Price or Number of Shares.......................................    22
Section 13.   Consolidation, Merger or Sale or Transfer of Assets or Earning Power.............................    22
Section 14.   Fractional Rights and Fractional Shares..........................................................    25
Section 15.   Rights of Action.................................................................................    27
Section 16.   Agreement of Right Holders.......................................................................    27
Section 17.   Right Certificate Holder Not Deemed a Shareholder................................................    28
Section 18.   Concerning the Rights Agent......................................................................    28
Section 19.   Merger or Consolidation or Change of Name of Rights Agent........................................    29
Section 20.   Duties of Rights Agent...........................................................................    29
Section 21.   Change of Rights Agent...........................................................................    32
Section 22.   Issuance of New Right Certificates...............................................................    33
Section 23.   Redemption.......................................................................................    33
Section 24.   Exchange.........................................................................................    35
Section 25.   Notice of Certain Events.........................................................................    37
Section 26.   Notices..........................................................................................    38
Section 27.   Supplements and Amendments.......................................................................    39
Section 28.   Determination and Actions by the Board of Directors, etc.........................................    39
</TABLE> 

                                       1
<PAGE>
 
<TABLE>
<CAPTION>
 
                                                                                                                  PAGE
<S>           <C>                                                                                                 <C>

Section 29.   Successors.......................................................................................    40
Section 30.   Benefits of this Agreement.......................................................................    40
Section 31.   Severability.....................................................................................    40
Section 32.   Governing Law....................................................................................    40
Section 33.   Counterparts.....................................................................................    40
Section 34.   Descriptive Headings.............................................................................    40
 
</TABLE>

SECTION 35.


Exhibit A -  Certificate of Determination

Exhibit B -  Form of Right Certificate

Exhibit C -  Summary of Rights to Purchase Preferred Shares

                                       2
<PAGE>
 
                                RIGHTS AGREEMENT



     THIS RIGHTS AGREEMENT ("AGREEMENT"), dated as of June 25, 1998, between
ASYST TECHNOLOGIES, INC., a California corporation (the "Company"), AND
BANKBOSTON, N.A. ("Rights Agent").

     The Board of Directors of the Company has authorized and declared a
dividend of one preferred share purchase right (a "Right") for each Common Share
(as such term is hereinafter defined) outstanding at the close of business on
July 10, 1998 (the "Record Date"), each Right representing the right to purchase
one one-hundredth of a Preferred Share (as such term is hereinafter defined),
upon the terms and subject to the conditions herein set forth, and has further
authorized and directed the issuance of one Right with respect to each Common
Share that shall become outstanding between the Record Date and the earliest to
occur of the Distribution Date, the Redemption Date and the Final Expiration
Date (as such terms are hereinafter defined); provided, however, that Rights may
be issued with respect to Common Shares that shall become outstanding after the
Distribution Date and prior to the earlier of the Redemption Date and the Final
Expiration Date in accordance with the provisions of Section 22 hereof.

     Accordingly, in consideration of the premises and the mutual agreements
herein set forth, the parties hereby agree as follows:

SECTION 1. CERTAIN DEFINITIONS. For purposes of this Agreement, the following
           terms have the meanings indicated:

(a) "ACQUIRING PERSON" shall mean any Person (as such term is hereinafter
    defined) who or which, together with all Affiliates and Associates (as
    such terms are hereinafter defined) of such Person, shall be the
    Beneficial Owner (as such term is hereinafter defined) of 15% or more of
    the Common Shares then outstanding. Notwithstanding the foregoing, (A) the
    term Acquiring Person shall not include (i) the Company, (ii) any
    Subsidiary (as such term is hereinafter defined) of the Company, (iii) any
    employee benefit or compensation plan of the Company or any Subsidiary of
    the Company, or (iv) any entity holding Common Shares for or pursuant to
    the terms of any such employee benefit or compensation plan and (B) no
    Person shall become an "Acquiring Person" either (x) as the result of an
    acquisition of Common Shares by the Company which, by reducing the number
    of shares outstanding, increases the proportionate number of shares
    beneficially owned by such Person to 15% or more of the Common Shares then
    outstanding; provided, however, that if a Person shall become the
    Beneficial Owner of 15% or more of the Common Shares then outstanding by
    reason of share purchases by the Company and shall, following written
    notice from, or public disclosure by the Company of such share purchases
    by the Company, become the Beneficial Owner of any additional Common
    Shares without the prior consent of the Company and shall then
    Beneficially Own more than 15% of the Common Shares

                                       1
<PAGE>
 
    then outstanding, then such Person shall be deemed to be an "Acquiring
    Person," (y) as the result of the acquisition of Common Shares directly
    from the Company, provided, however, that if a Person shall become the
    Beneficial Owner of 15% or more of the Common Shares then outstanding by
    reason of share purchases directly from the Company and shall, after that
    date, become Beneficial Owner of any additional Common Shares without the
    prior written consent of the Company and shall then Beneficially Own more
    than 15% of Common Shares then outstanding, then such Person shall be
    deemed to be an "Acquiring Person" or (z) if the Board of Directors
    determines in good faith that a Person who would otherwise be an
    "Acquiring Person," as defined pursuant to the foregoing provisions of
    this paragraph (a), has become such inadvertently, and such Person
    divests, as promptly as practicable (as determined in good faith by the
    Board of Directors), but in any event within five Business Days, following
    receipt of written notice from the Company of such event, of Beneficial
    Ownership of a sufficient number of Common Shares so that such Person
    would no longer be an Acquiring Person, as defined pursuant to the
    foregoing provisions of this paragraph (a), then such Person shall not be
    deemed to be an "Acquiring Person" for any purposes of this Agreement.

(b) "AFFILIATE" and "ASSOCIATE" shall have the respective meanings ascribed to
    such terms in Rule 12b-2 of the General Rules and Regulations under the
    Securities Exchange Act of 1934, as amended (the "Exchange Act"), as in
    effect on the date of this Agreement.
(c) A Person shall be deemed the "BENEFICIAL OWNER" of and shall be deemed to
    "beneficially own" any securities:

    (i)   which such Person or any of such Person's Affiliates or Associates
          is deemed to beneficially own, within the meaning of Rule 13d-3 of
          the General Rules and Regulations under the Exchange Act as in
          effect on the date of this Rights Agreement;

   (ii)   which such Person or any of such Person's Affiliates or Associates
          has (A) the right to acquire (whether such right is exercisable
          immediately or only after the passage of time) pursuant to any
          agreement, arrangement or understanding (other than customary
          agreements with and between underwriters and selling group members
          with respect to a bona fide public offering of securities), or upon
          the exercise of conversion rights, exchange rights, rights (other
          than these Rights), warrants or options, or otherwise; provided,
          however, that a Person shall not be deemed the Beneficial Owner of,
          or to beneficially own, securities tendered pursuant to a tender or
          exchange offer made by or on behalf of such Person or any of such
          Person's Affiliates or Associates until such tendered securities are
          accepted for purchase or exchange; or 

                                       2
<PAGE>
 
          (B) the right to vote pursuant to any agreement, arrangement or
          understanding; provided, however, that a Person shall not be deemed
          the Beneficial Owner of, or to beneficially own, any security if the
          agreement, arrangement or understanding to vote such security (1)
          arises solely from a revocable proxy or consent given to such Person
          in response to a public proxy or consent solicitation made pursuant
          to, and in accordance with, the applicable rules and regulations
          promulgated under the Exchange Act and (2) is not also then
          reportable on Schedule 13D under the Exchange Act (or any comparable
          or successor report); or

    (iii) which are beneficially owned, directly or indirectly, by any other
          Person with which such Person or any of such Person's Affiliates or
          Associates has any agreement, arrangement or understanding (other
          than customary agreements with and between underwriters and selling
          group members with respect to a bona fide public offering of
          securities) for the purpose of acquiring, holding, voting (except to
          the extent contemplated by the proviso to Section 1(c)(ii)(B)
          hereof) or disposing of any securities of the Company.

  Notwithstanding anything in this definition of Beneficial Ownership to the
  contrary, the phrase, "then outstanding," when used with reference to a
  Person's Beneficial Ownership of securities of the Company, shall mean the
  number of such securities then issued and outstanding together with the
  number of such securities not then actually issued and outstanding which
  such Person would be deemed to own beneficially hereunder.

(d)  "BUSINESS DAY" shall mean any day other than a Saturday, a Sunday, or a
     day on which banking institutions in the States of California or
     Massachusetts are authorized or obligated by law or executive order to
     close.

(e)  "CLOSE OF BUSINESS" on any given date shall mean 5:00 p.m., Massachusetts
     Time, on such date; provided, however, that if such date is not a Business
     Day it shall mean 5:00 p.m., Massachusetts Time, on the next succeeding
     Business Day.

(f)  "COMMON SHARES" shall mean the shares of common stock, without par value,
     of the Company; provided, however, that, "Common Shares," when used in this
     Agreement in connection with a specific reference to any Person other than
     the Company, shall mean the capital stock (or equity interest) with the
     greatest voting power of such other Person or, if such other Person is a
     Subsidiary of another Person, the Person or Persons which ultimately
     control such first-mentioned Person.

                                       3
<PAGE>
 
(g)  "DISTRIBUTION DATE" shall have the meaning set forth in Section 3 hereof.

(h)  "FINAL EXPIRATION DATE" shall have the meaning set forth in Section 7
     hereof.

(i)  "INTERESTED SHAREHOLDER" shall mean any Acquiring Person or any Affiliate
     or Associate of an Acquiring Person or any other Person in which any such
     Acquiring Person, Affiliate or Associate has an interest, or any other
     Person acting directly or indirectly on behalf of or in concert with any
     such Acquiring Person, Affiliate or Associate.

(j)  "PERSON" shall mean any individual, firm, corporation or other entity, and
     shall include any successor (by merger or otherwise) of such entity.

(k)  "PREFERRED SHARES" shall mean shares of Series A Junior Participating
     Preferred Stock, without par value, of the Company having the rights and
     preferences set forth in the form of Certificate of Determination attached
     to this Agreement as Exhibit A.

(l)  "PURCHASE PRICE" shall have the meaning set forth in Section 7(b) hereof.

(m)  "REDEMPTION DATE" shall have the meaning set forth in Section 7 hereof.

(n)  "SHARES ACQUISITION DATE" shall mean the first date of public announcement
     by the Company or an Acquiring Person that an Acquiring Person has become
     such provided, however that, if such Person is determined not to have
     become an Acquiring Person pursuant to clause (z) of Subsection 1(a)(B)
     hereof, then no Shares Acquisition Date shall be deemed to have occurred.

(o)  "SUBSIDIARY" of any Person shall mean any corporation or other entity of
     which a majority of the voting power of the voting equity securities or
     equity interest is owned, directly or indirectly, by such Person.

(p)  "TRANSACTION" shall mean any merger, consolidation or sale of assets
     described in Section 13(a) hereof or any acquisition of Common Shares which
     would result in a Person becoming an Acquiring Person or a Principal Party
     (as such term is hereinafter defined).

(q)  "TRANSACTION PERSON" with respect to a Transaction shall mean (i) any
     Person who (x) is or will become an Acquiring Person or a Principal Party
     (as such term is hereinafter defined) if the Transaction were to be
     consummated and (y) directly or indirectly proposed or nominated a director
     of the Company which director is in office at the time of consideration of
     the Transaction, or (ii) an Affiliate or Associate of such a Person.

                                       4
<PAGE>
 
SECTION 2.  APPOINTMENT OF RIGHTS AGENT.    The Company hereby appoints the
     Rights Agent to act as agent for the Company in accordance with the terms
     and conditions hereof, and the Rights Agent hereby accepts such
     appointment. The Company may from time to time appoint such co-Rights
     Agents as it may deem necessary or desirable, upon ten (10) days' prior
     written notice to the Rights Agent. The Rights Agent shall have no duty
     to supervise, and in no event be liable for, the acts or omissions of any
     such co-Rights Agent.

SECTION 3. ISSUE OF RIGHT CERTIFICATES.

     (A)  Until the earlier of (i) the Shares Acquisition Date or (ii) the
          tenth Business Day (or such later date as may be determined by
          action of the Board of Directors prior to such time as any Person
          becomes an Acquiring Person) after the date of the commencement
          (determined in accordance with Rule 14d-2 under the Exchange Act) by
          any Person (other than the Company, any Subsidiary of the Company,
          any employee benefit plan of the Company or of any Subsidiary of the
          Company or any entity holding Common Shares for or pursuant to the
          terms of any such plan) of, or of the first public announcement of
          the intention of any Person (other than the Company, any Subsidiary
          of the Company, any employee benefit plan of the Company or of any
          Subsidiary of the Company or any entity holding Common Shares for or
          pursuant to the terms of any such plan) to commence, a tender or
          exchange offer (which intention to commence remains in effect for
          five Business Days after such announcement), the consummation of
          which would result in any Person becoming an Acquiring Person
          (including any such date which is after the date of this Agreement
          and prior to the issuance of the Rights, the earlier of such dates
          being herein referred to as the "Distribution Date"), (x) the Rights
          will be evidenced by the certificates for Common Shares registered
          in the names of the holders thereof (which certificates shall also
          be deemed to be Right Certificates) and not by separate Right
          Certificates, and (y) the Rights (and the right to receive Right
          Certificates therefor) will be transferable only in connection with
          the transfer of Common Shares. As soon as practicable after the
          Distribution Date, the Company will prepare and execute, the Rights
          Agent will countersign, and the Company will send or cause to be
          sent (and the Rights Agent will, if requested, send) by first-class,
          insured, postage-prepaid mail, to each record holder of Common
          Shares as of the Close of Business on the Distribution Date, at the
          address of such holder shown on the records of the Company, a Right
          Certificate, in substantially the form of Exhibit B hereto (a "Right
          Certificate"), evidencing one Right for each Common Share so held,
          subject to the adjustment provisions of Section 11 of this Rights
          Agreement. As of the Distribution Date, the Rights will be evidenced
          solely by such Right Certificates.

     (B)  On the Record Date, or as soon as practicable thereafter, the
          Company will send (directly or through the Rights Agent or its
          transfer agent) a copy of a Summary of Rights to Purchase Preferred
          Shares, in substantially the form 

                                       5
<PAGE>
 
          of Exhibit C hereto (the "Summary of Rights"), by first-class,
          postage-prepaid mail, to each record holder of Common Shares as of
          the Close of Business on the Record Date, at the address of such
          holder shown on the records of the Company. With respect to
          certificates for Common Shares outstanding as of the Record Date,
          until the Distribution Date, the Rights will be evidenced by such
          certificates registered in the names of the holders thereof. Until
          the Distribution Date (or the earlier of the Redemption Date and the
          Final Expiration Date), the surrender for transfer of any
          certificate for Common Shares outstanding on the Record Date shall
          also constitute the transfer of the Rights associated with the
          Common Shares represented thereby.

     (c)  Certificates for Common Shares which become outstanding (including,
          without limitation, reacquired Common Shares referred to in the last
          sentence of this paragraph (c)) after the Record Date but prior to
          the earliest of the Distribution Date, the Redemption Date or the
          Final Expiration Date shall have impressed on, printed on, written
          on or otherwise affixed to them the following legend:

              This certificate also evidences and entitles the holder hereof
              to certain rights as set forth in a Rights Agreement between
              Asyst Technologies, Inc. (the "Company") and BankBoston, N.A. as
              Rights Agent (the "Rights Agent"), dated as of June 25, 1998, as
              amended from time to time (the "Rights Agreement"), the terms of
              which are hereby incorporated herein by reference and a copy of
              which is on file at the principal executive offices of the
              Company. Under certain circumstances, as set forth in the Rights
              Agreement, such Rights will be evidenced by separate
              certificates and will no longer be evidenced by this
              certificate. The Company will mail to the holder of this
              certificate a copy of the Rights Agreement without charge after
              receipt of a written request therefor. As described in the
              Rights Agreement, Rights issued to any Person who becomes an
              Acquiring Person or an Affiliate or Associate thereof (as
              defined in the Rights Agreement) and certain related persons,
              whether currently held by or on behalf of such Person or by any
              subsequent holder, shall become null and void.


          With respect to such certificates containing the foregoing legend,
          until the Distribution Date, the Rights associated with the Common
          Shares represented by such certificates shall be evidenced by such
          certificates alone, and the surrender for transfer of any such
          certificate shall also constitute the transfer of the Rights
          associated with the Common Shares represented thereby. In the event
          that the Company purchases or acquires any Common Shares after the
          Record Date but prior to the Distribution 

                                       6
<PAGE>
 
          Date, any Rights associated with such Common Shares shall be deemed
          canceled and retired so that the Company shall not be entitled to
          exercise any Rights associated with the Common Shares which are no
          longer outstanding. Notwithstanding this Section 3(c), the omission
          of a legend shall not affect the enforceability of any part of this
          Rights Agreement or the rights of any holder of the Rights.

SECTION 4. FORM OF RIGHT CERTIFICATES.

     (a)  The Right Certificates (and the form of election to purchase
          Preferred Shares, the form of assignment and the form of
          certification to be printed on the reverse thereof) shall be
          substantially the same as Exhibit B hereto and may have such marks
          of identification or designation and such legends, summaries or
          endorsements printed thereon as the Company may deem appropriate and
          as are not inconsistent with the provisions of this Agreement, or as
          may be required to comply with any applicable law or with any rule
          or regulation made pursuant thereto or with any rule or regulation
          of any stock exchange on which the Rights may from time to time be
          listed, or to conform to usage. Subject to the provisions of
          Sections 7,11 and 22 hereof, the Right Certificates shall entitle
          the holders thereof to purchase such number of one one-hundredths of
          a Preferred Share as shall be set forth therein at the price per one
          one-hundredth of a Preferred Share set forth therein (the "Purchase
          Price"), but the number of such one one-hundredths of a Preferred
          Share and the Purchase Price shall be subject to adjustment as
          provided herein.

     (b)  Any Right Certificate issued pursuant to Section 3(a) or Section 22
          hereof that represents Rights which are null and void pursuant to
          Section 11(a)(ii) hereof and any Right Certificate issued pursuant
          to Section 6 or Section 11 hereof upon transfer, exchange,
          replacement or adjustment of any other Right Certificate referred to
          in this sentence, shall contain (to the extent feasible) the
          following legend:

               The Rights represented by this Right Certificate are or were
               beneficially owned by a Person who was or became an Acquiring
               Person or an Affiliate or Associate of an Acquiring Person (as
               such terms are defined in the Rights Agreement). Accordingly,
               this Right Certificate and the Rights represented hereby are
               null and void.


           The provisions of Section 11(a)(ii) hereof shall be operative
           whether or not the foregoing legend is contained on any such Right
           Certificate.

SECTION 5. COUNTERSIGNATURE AND REGISTRATION. The Right Certificates shall be
          executed on behalf of the Company by its Chairman of the Board, its
          Chief Executive Officer, its President, its Vice Chairman of the
          Board, its Chief Financial Officer, or any 

                                       7
<PAGE>
 
          of its Vice Presidents, either manually or by facsimile signature,
          shall have affixed thereto the Company's seal or a facsimile
          thereof, and shall be attested by the Secretary or an Assistant
          Secretary of the Company, either manually or by facsimile signature.
          The Right Certificates shall be manually countersigned by the Rights
          Agent and shall not be valid for any purpose unless countersigned.
          In case any officer of the Company who shall have signed any of the
          Right Certificates shall cease to be such officer of the Company
          before countersignature by the Rights Agent and issuance and
          delivery by the Company, such Right Certificates, nevertheless, may
          be countersigned by the Rights Agent and issued and delivered by the
          Company with the same force and effect as though the person who
          signed such Right Certificates had not ceased to be such officer of
          the Company; and any Right Certificate may be signed on behalf of
          the Company by any person who, at the actual date of the execution
          of such Right Certificate, shall be a proper officer of the Company
          to sign such Right Certificate, although at the date of the
          execution of this Agreement any such person was not such an officer.

          Following the Distribution Date, the Rights Agent will keep or cause
          to be kept, at its office designated for such purpose, books for
          registration and transfer of the Right Certificates issued hereunder.
          Such books shall show the names and addresses of the respective
          holders of the Right Certificates, the number of Rights evidenced on
          its face by each of the Right Certificates and the date of each of the
          Right Certificates.

SECTION 6. TRANSFER, SPLIT UP, COMBINATION AND EXCHANGE OF RIGHT CERTIFICATES;
          MUTILATED, DESTROYED, LOST OR STOLEN RIGHT CERTIFICATES. Subject to
          the provisions of Section 11(a)(ii), Section 14 and Section 24
          hereof, at any time after the Close of Business on the Distribution
          Date, and at or prior to the Close of Business on the earlier of the
          Redemption Date or the Final Expiration Date, any Right Certificate
          or Right Certificates may be transferred, split up, combined or
          exchanged for another Right Certificate or Right Certificates,
          entitling the registered holder to purchase a like number of one one-
          hundredths of a Preferred Share as the Right Certificate or Right
          Certificates surrendered then entitled such holder to purchase. Any
          registered holder desiring to transfer, split up, combine or
          exchange any Right Certificate or Right Certificates shall make such
          request in writing delivered to the Rights Agent, and shall
          surrender the Right Certificate or Right Certificates to be
          transferred, split up, combined or exchanged at the office of the
          Rights Agent designated for such purpose. Neither the Rights Agent
          nor the Company shall be obligated to take any action whatsoever
          with respect to the transfer of any such surrendered Right
          Certificate until the registered holder shall have completed and
          signed the certificate contained in the form of assignment on the
          reverse side of such Right Certificate and shall have provided such
          additional evidence of the identity of the Beneficial Owner (or
          former Beneficial Owner) or Affiliates or Associates thereof as the
          Company shall reasonably request. Thereupon the Rights Agent shall,
          subject to Section 11(a)(ii), Section 14 and Section 24 hereof,
          countersign and deliver to the person entitled thereto a Right
          Certificate or Right Certificates, as the case may be, as so
          requested. The 

                                       8
<PAGE>
 
          Company may require payment of a sum sufficient to cover any tax or
          governmental charge that may be imposed in connection with any
          transfer, split up, combination or exchange of Right Certificates.

          Upon receipt by the Company and the Rights Agent of evidence
          reasonably satisfactory to them of the loss, theft, destruction or
          mutilation of a Right Certificate, and, in case of loss, theft or
          destruction, of indemnity or security reasonably satisfactory to them,
          and, at the Company's request, reimbursement to the Company and the
          Rights Agent of all reasonable expenses incidental thereto, and upon
          surrender to the Rights Agent and cancellation of the Right
          Certificate if mutilated, the Company will issue, execute and deliver
          a new Right Certificate of like tenor to the Rights Agent for
          countersignature and delivery to the registered holder in lieu of the
          Right Certificate so lost, stolen, destroyed or mutilated.

          Notwithstanding any other provisions hereof, the Company and the
          Rights Agent may amend this Rights Agreement to provide for
          uncertificated Rights in addition to or in place of Rights evidenced
          by Rights Certificates.

SECTION 7. EXERCISE OF RIGHTS; PURCHASE PRICE; EXPIRATION DATE OF RIGHTS.

          (a)  The registered holder of any Right Certificate may exercise the
               Rights evidenced thereby (except as otherwise provided herein)
               in whole or in part at any time after the Distribution Date
               upon surrender of the Right Certificate, with the form of
               election to purchase on the reverse side thereof duly executed,
               to the Rights Agent at the office of the Rights Agent
               designated for such purpose, together with payment of the
               Purchase Price for each one one-hundredth of a Preferred Share
               (or such other number of shares or other securities) as to
               which the Rights are exercised, at or prior to the earliest of
               (i) the Close of Business on July 10, 2008 (the "Final
               Expiration Date"), (ii) the time at which the Rights are
               redeemed as provided in Section 23 hereof (the "Redemption
               Date"), or (iii) the time at which such Rights are exchanged as
               provided in Section 24 hereof.

          (b)  The purchase price (the "Purchase Price") for each one one-
               hundredth of a Preferred Share pursuant to the exercise of a
               Right shall initially be $140 and shall be subject to
               adjustment from time to time as provided in Sections 11 and 13
               hereof and shall be payable in lawful money of the United
               States of America in accordance with paragraph (c) below.

          (c)  Upon receipt of a Right Certificate representing exercisable
               Rights, with the form of election to purchase duly executed,
               accompanied by payment of the Purchase Price for the shares to
               be purchased and an amount equal to any applicable transfer tax
               required to be paid by the holder of such Right Certificate in
               accordance with Section 9 hereof by certified check, cashier's
               check, bank draft or money order payable to the order of the
               Company, the Rights Agent shall thereupon promptly (i) (A)
               requisition from any transfer agent for the Preferred Shares
               certificates for the number 

                                       9
<PAGE>
 
               of Preferred Shares to be purchased and the Company hereby
               irrevocably authorizes its transfer agent to comply with all
               such requests, or (B) if the Company, in its sole discretion,
               shall have elected to deposit the Preferred Shares issuable
               upon exercise of the Rights hereunder into a depository,
               requisition from the depositary agent depositary receipts
               representing such number of one one-hundredths of a Preferred
               Share as are to be purchased (in which case certificates for
               the Preferred Shares represented by such receipts shall be
               deposited by the transfer agent with the depositary agent) and
               the Company hereby directs the depositary agent to comply with
               such request, (ii) when appropriate, requisition from the
               Company the amount of cash to be paid in lieu of issuance of
               fractional shares in accordance with Section 14 hereof, (iii)
               after receipt of such certificates or depositary receipts,
               cause the same to be delivered to or upon the order of the
               registered holder of such Right Certificate, registered in such
               name or names as may be designated by such holder and (iv) when
               appropriate, after receipt, deliver such cash to or upon the
               order of the registered holder of such Right Certificate. In
               the event that the Company is obligated to issue securities of
               the Company other than Preferred Shares (including Common
               Shares) of the Company pursuant to Section 11(a) hereof, the
               Company will make all arrangements necessary so that such other
               securities are available for distribution by the Rights Agent,
               if and when appropriate.

               In addition, in the case of an exercise of the Rights by a holder
               pursuant to Section 11(a)(ii) hereof, the Rights Agent shall
               return such Right Certificate to the registered holder thereof
               after imprinting, stamping or otherwise indicating thereon that
               the rights represented by such Right Certificate no longer
               include the rights provided by Section 11(a)(ii) hereof, and, if
               fewer than all the Rights represented by such Right Certificate
               were so exercised, the Rights Agent shall indicate on the Right
               Certificate the number of Rights represented thereby which
               continue to include the rights provided by Section 11(a)(ii)
               hereof.

          (d)  In case the registered holder of any Right Certificate shall
               exercise fewer than all the Rights evidenced thereby, a new
               Right Certificate evidencing Rights equivalent to the Rights
               remaining unexercised shall be issued by the Rights Agent to
               the registered holder of such Right Certificate or to his duly
               authorized assigns, subject to the provisions of Section 14
               hereof.

          (e)  The Company covenants and agrees that it will cause to be
               reserved and kept available out of its authorized and unissued
               Preferred Shares, the number of Preferred Shares that will be
               sufficient to permit the exercise in full of all outstanding
               Rights in accordance with this Section 7.

          (f)  Notwithstanding anything in this Agreement to the contrary,
               neither the Rights Agent nor the Company shall be obligated to
               undertake any action with respect to a registered holder upon
               the occurrence of any purported 

                                       10
<PAGE>
 
               exercise as set forth in this Section 7 unless such registered
               holder shall have (i) completed and signed the certification
               following the form of election to purchase set forth on the
               reverse side of the Rights Certificate surrendered for such
               exercise and (ii) provided such additional evidence of the
               identity of the Beneficial Owner (or former Beneficial Owner)
               or Affiliates or Associates thereof as the Company shall
               reasonably request.

SECTION 8. CANCELLATION AND DESTRUCTION OF RIGHT CERTIFICATES. All Right
           Certificates surrendered for the purpose of exercise, transfer,
           split up, combination or exchange shall, if surrendered to the
           Company or to any of its agents, be delivered to the Rights Agent
           for cancellation or in canceled form, or, if delivered or
           surrendered to the Rights Agent, shall be canceled by it, and no
           Right Certificates shall be issued in lieu thereof except as
           expressly permitted by any of the provisions of this Agreement. The
           Company shall deliver to the Rights Agent for cancellation and
           retirement, and the Rights Agent shall so cancel and retire, any
           other Right Certificate purchased or acquired by the Company
           otherwise than upon the exercise thereof. The Rights Agent shall
           deliver all canceled Right Certificates to the Company, or shall,
           at the written request of the Company, destroy such canceled Right
           Certificates, and in such case shall deliver a certificate of
           destruction thereof to the Company.

SECTION 9. AVAILABILITY OF PREFERRED SHARES. The Company covenants and agrees
           that so long as the Preferred Shares (and, after the time a person
           becomes an Acquiring Person, Common Shares or any other securities)
           issuable upon the exercise of the Rights may be listed on any
           national securities exchange or quotation system, the Company shall
           use its best efforts to cause, from and after such time as the
           Rights become exercisable, all shares reserved for such issuance to
           be listed on such exchange or quotation system upon official notice
           of issuance upon such exercise.

           The Company covenants and agrees that it will take all such action
           as may be necessary to ensure that all Preferred Shares (or Common
           Shares and other securities, as the case may be) delivered upon
           exercise of Rights shall, at the time of delivery of the
           certificates for such Preferred Shares (subject to payment of the
           Purchase Price), be duly and validly authorized and issued and
           fully paid and nonassessable shares or other securities.

           The Company further covenants and agrees that it will pay when due
           and payable any and all federal and state transfer taxes and
           charges which may be payable in respect of the issuance or delivery
           of the Right Certificates or of any Preferred Shares upon the
           exercise of Rights. The Company shall not, however, be required to
           pay any transfer tax which may be payable in respect of any
           transfer or delivery of Right Certificates to a person other than,
           or the issuance or delivery of certificates or depositary receipts
           for the Preferred Shares in a name other than that of, the
           registered holder of the Right Certificate evidencing Rights
           surrendered for exercise or to issue or to deliver any certificates
           or depositary receipts for Preferred Shares upon the exercise of
           any Rights until any such tax shall have been paid (any such tax
           being payable by the holder of such Right 

                                       11
<PAGE>
 
           Certificate at the time of surrender) or until it has been
           established to the Company's reasonable satisfaction that no such
           tax is due.

           As soon as practicable after the Shares Acquisition Date, the Company
           shall use its best efforts to:

             (i) prepare and file a registration statement under the
                 Securities Act of 1933, as amended (the "Act"), with respect
                 to the Rights and the securities purchasable upon exercise of
                 the Rights on an appropriate form, will use its best efforts
                 to cause such registration statement to become effective as
                 soon as practicable after such filing and will use its best
                 efforts to cause such registration statement to remain
                 effective (with a prospectus at all times meeting the
                 requirements of the Act) until the Final Expiration Date; and

            (ii) use its best efforts to qualify or register the Rights and
                 the securities purchasable upon exercise of the Rights under
                 the blue sky laws of such jurisdictions as may be necessary
                 or appropriate.

SECTION 10. PREFERRED SHARES RECORD DATE. Each person in whose name any
           certificate for Preferred Shares or other securities is issued upon
           the exercise of Rights shall for all purposes be deemed to have
           become the holder of record of the Preferred Shares or other
           securities represented thereby on, and such certificate shall be
           dated, the date upon which the Right Certificate evidencing such
           Rights was duly surrendered with the forms of election and
           certification duly executed and payment of the Purchase Price (and
           any applicable transfer taxes) was made; provided, however, that if
           the date of such surrender and payment is a date upon which the
           Preferred Shares or other securities transfer books of the Company
           are closed, such person shall be deemed to have become the record
           holder of such shares on, and such certificate shall be dated, the
           next succeeding Business Day on which the Preferred Shares or other
           securities transfer books of the Company are open. Prior to the
           exercise of the Rights evidenced thereby, the holder of a Right
           Certificate, as such, shall not be entitled to any rights of a
           holder of Preferred Shares for which the Rights shall be
           exercisable, including, without limitation, the right to vote, to
           receive dividends or other distributions or to exercise any
           preemptive rights, and shall not be entitled to receive any notice
           of any proceedings of the Company, except as provided herein.

SECTION 11. ADJUSTMENT OF PURCHASE PRICE, NUMBER OF SHARES OR NUMBER OF RIGHTS.
The Purchase Price, the number of Preferred Shares covered by each Right and
the number of Rights outstanding are subject to adjustment from time to time
as provided in this Section 11.

           (a)

              (i) In the event the Company shall at any time after the date of
                  this 

                                       12
<PAGE>
 
                  Agreement (A) declare a dividend on the Preferred Shares
                  payable in Preferred Shares, (B) subdivide the outstanding
                  Preferred Shares, (C) combine the outstanding Preferred
                  Shares into a smaller number of Preferred Shares or (D)
                  issue any shares of its capital stock in a reclassification
                  of the Preferred Shares (including any such reclassification
                  in connection with a consolidation or merger in which the
                  Company is the continuing or surviving corporation), except
                  as otherwise provided in this Section 11(a), the Purchase
                  Price in effect at the time of the record date for such
                  dividend or of the effective date of such subdivision,
                  combination or reclassification, and the number and kind of
                  shares of capital stock issuable on such date, shall be
                  proportionately adjusted so that the holder of any Right
                  exercised after such time shall be entitled to receive the
                  aggregate number and kind of shares of capital stock which,
                  if such Right had been exercised immediately prior to such
                  date and at a time when the Preferred Shares transfer books
                  of the Company were open, such holder would have owned upon
                  such exercise and been entitled to receive by virtue of such
                  dividend, subdivision, combination or reclassification;
                  provided, however, that in no event shall the consideration
                  to be paid upon the exercise of one Right be less than the
                  aggregate par value of the shares of capital stock of the
                  Company issuable upon exercise of one Right. If an event
                  occurs which would require an adjustment under both Section
                  11(a)(i) and Section 11(a)(ii) hereof, the adjustment
                  provided for in this Section 11(a)(i) shall be in addition
                  to, and shall be made prior to any adjustment required
                  pursuant to Section 11(a)(ii) hereof.

             (ii) Subject to Section 24 hereof and the provisions of the next
                  paragraph of this Section 11(a)(ii), in the event any Person
                  shall become an Acquiring Person, each holder of a Right
                  shall, for a period of 60 days after the later of such time
                  any Person becomes an Acquiring Person or the effective date
                  of an appropriate registration statement under the Act
                  pursuant to Section 9 hereof (provided, however that, if at
                  any time prior to the expiration or termination of the
                  Rights there shall be a temporary restraining order, a
                  preliminary injunction, an injunction, or temporary
                  suspension by the Board of Directors, or similar obstacle to
                  exercise of the Rights (the "Injunction") which prevents
                  exercise of the Rights, a new 60-day period shall commence
                  on the date the Injunction is removed), have a right to
                  receive, upon exercise thereof at a price equal to the then
                  current Purchase Price multiplied by the number of one one-
                  hundredths of a Preferred Share for which a Right is then
                  exercisable, in accordance with the terms of this Agreement
                  and in lieu of Preferred Shares, such number of Common
                  Shares as shall equal the result obtained by 

                                       13
<PAGE>
 
                  (A) multiplying the then current Purchase Price by the
                  number of one one-hundredths of a Preferred Share for which
                  a Right is then exercisable and dividing that product by (B)
                  50% of the then current per share market price of the Common
                  Shares (determined pursuant to Section 11(d) hereof) on the
                  date such Person became an Acquiring Person; provided,
                  however, that if the transaction that would otherwise give
                  rise to the foregoing adjustment is also subject to the
                  provisions of Section 13 hereof, then only the provisions of
                  Section 13 hereof shall apply and no adjustment shall be
                  made pursuant to this Section 11(a)(ii). In the event that
                  any Person shall become an Acquiring Person and the Rights
                  shall then be outstanding, the Company shall not take any
                  action which would eliminate or diminish the benefits
                  intended to be afforded by the Rights.

                  Notwithstanding anything in this Agreement to the contrary,
                  from and after the time any Person becomes an Acquiring
                  Person, any Rights beneficially owned by (i) such Acquiring
                  Person or an Associate or Affiliate of such Acquiring
                  Person, (ii) a transferee of such Acquiring Person (or of
                  any such Associate or Affiliate) who becomes a transferee
                  after the Acquiring Person became such, or (iii) a
                  transferee of such Acquiring Person (or of any such
                  Associate or Affiliate) who becomes a transferee prior to or
                  concurrently with the Acquiring Person's becoming such and
                  receives such Rights pursuant to either (A) a transfer
                  (whether or not for consideration) from the Acquiring Person
                  to holders of equity interests in such Acquiring Person or
                  to any Person with whom the Acquiring Person has any
                  continuing agreement, arrangement or understanding regarding
                  the transferred Rights or (B) a transfer which the Board of
                  Directors of the Company has determined is part of a plan,
                  arrangement or understanding which has as a primary purpose
                  or effect the avoidance of this Section 11(a)(ii), shall
                  become null and void without any further action and no
                  holder of such Rights shall have any rights whatsoever with
                  respect to such Rights, whether under any provision of this
                  Agreement or otherwise. The Company shall use all reasonable
                  efforts to insure that the provisions of this Section
                  11(a)(ii) and Section 4(b) hereof are complied with, but
                  shall have no liability to any holder of Right Certificates
                  or other Person as a result of its failure to make any
                  determinations with respect to an Acquiring Person or its
                  Affiliates, Associates or transferees hereunder. No Right
                  Certificate shall be issued at any time upon the transfer of
                  any Rights to an Acquiring Person whose Rights would be void
                  pursuant to the preceding sentence or any Associate or
                  Affiliate thereof or to any nominee of such Acquiring
                  Person, Associate or Affiliate; and any Right Certificate
                  delivered 

                                       14
<PAGE>
 
                  to the Rights Agent for transfer to an Acquiring Person
                  whose Rights would be void pursuant to the preceding
                  sentence shall be canceled.

           (iii)  In lieu of issuing Common Shares in accordance with Section
                  11(a)(ii) hereof, the Company may, if a majority of the
                  Board of Directors then in office determines that such
                  action is necessary or appropriate and not contrary to the
                  interests of holders of Rights, elect to (and, in the event
                  that the Board of Directors has not exercised the exchange
                  right contained in Section 24(c) hereof and there are not
                  sufficient authorized but unissued Common Shares to permit
                  the exercise in full of the Rights in accordance with the
                  foregoing subparagraph (ii)) take all such action as may be
                  necessary to authorize, issue or pay, upon the exercise of
                  the Rights, cash (including by way of a reduction of the
                  Purchase Price), property, Common Shares, other securities
                  or any combination thereof having an aggregate value equal
                  to the value of the Common Shares which otherwise would have
                  been issuable pursuant to Section 11(a)(ii) hereof, which
                  aggregate value shall be determined by a nationally
                  recognized investment banking firm selected by a majority of
                  the Board of Directors then in office. For purposes of the
                  preceding sentence, the value of the Common Shares shall be
                  determined pursuant to Section 11(d) hereof. Any such
                  election by the Board of Directors must be made within 60
                  days following the date on which the event described in
                  Section 11(a)(ii) hereof shall have occurred. Following the
                  occurrence of the event described in Section 11(a)(ii)
                  hereof, a majority of the Board of Directors then in office
                  may suspend the exercisability of the Rights for a period of
                  up to 60 days following the date on which the event
                  described in Section 11(a)(ii) hereof shall have occurred to
                  the extent that such directors have not determined whether
                  to exercise their rights of election under this Section
                  11(a)(iii). In the event of any such suspension, the Company
                  shall issue a public announcement stating that the
                  exercisability of the Rights has been temporarily suspended.

                                       15
<PAGE>
 
(b)  In case the Company shall fix a record date for the issuance of rights,
     options or warrants to all holders of Preferred Shares entitling them (for
     a period expiring within 45 calendar days after such record date) to
     subscribe for or purchase Preferred Shares (or shares having the same
     designations, powers, preferences, rights, qualifications, limitations and
     restrictions as the Preferred Shares ("equivalent preferred shares")) or
     securities convertible into Preferred Shares or equivalent preferred shares
     at a price per Preferred Share or equivalent preferred share (or having a
     conversion price per share, if a security convertible into Preferred Shares
     or equivalent preferred shares) less than the then current per share market
     price of the Preferred Shares (as such term is hereinafter defined) on such
     record date, the Purchase Price to be in effect after such record date
     shall be determined by multiplying the Purchase Price in effect immediately
     prior to such record date by a fraction, the numerator of which shall be
     the number of Preferred Shares outstanding on such record date plus the
     number of Preferred Shares which the aggregate offering price of the total
     number of Preferred Shares and/or equivalent preferred shares so to be
     offered (and/or the aggregate initial conversion price of the convertible
     securities so to be offered) would purchase at such current market price
     and the denominator of which shall be the number of Preferred Shares
     outstanding on such record date plus the number of additional Preferred
     Shares and/or equivalent preferred shares to be offered for subscription or
     purchase (or into which the convertible securities so to be offered are
     initially convertible); provided, however, that in no event shall the
     consideration to be paid upon the exercise of one Right be less than the
     aggregate par value of the shares of capital stock of the Company issuable
     upon exercise of one Right.  In case such subscription price may be paid in
     a consideration part or all of which shall be in a form other than cash,
     the value of such consideration shall be as determined in good faith by the
     Board of Directors of the Company, whose determination shall be described
     in a statement filed with the Rights Agent.  Preferred Shares owned by or
     held for the account of the Company shall not be deemed outstanding for the
     purpose of any such computation.  Such adjustment shall be made
     successively whenever such a record date is fixed; and in the event that
     such rights, options or warrants are not so issued, the Purchase Price
     shall be adjusted to be the Purchase Price which would then be in effect if
     such record date had not been fixed.

(c)  In case the Company shall fix a record date for the making of a
     distribution to all holders of the Preferred Shares (including any such
     distribution made in connection with a consolidation or merger in which
     the Company is the continuing or surviving corporation) of evidences of
     indebtedness or assets (other than a regular quarterly cash dividend or a
     dividend payable in Preferred Shares) or subscription rights or warrants
     (excluding those referred to in Section 11(b) hereof), the Purchase Price
     to be in effect after such record date shall be determined by multiplying
     the 

                                       16
<PAGE>
 
     Purchase Price in effect immediately prior to such record date by a
     fraction, the numerator of which shall be the then current per share
     market price of the Preferred Shares (as such term is hereinafter
     defined) on such record date, less the fair market value (as determined
     in good faith by the Board of Directors of the Company, whose
     determination shall be described in a statement filed with the Rights
     Agent) of the portion of the assets or evidences of indebtedness so to be
     distributed or of such subscription rights or warrants applicable to one
     Preferred Share and the denominator of which shall be such current per
     share market price of the Preferred Shares; provided, however, that in no
     event shall the consideration to be paid upon the exercise of one Right
     be less than the aggregate par value of the shares of capital stock of
     the Company to be issued upon exercise of one Right. Such adjustments
     shall be made successively whenever such a record date is fixed; and in
     the event that such distribution is not so made, the Purchase Price shall
     again be adjusted to be the Purchase Price which would then be in effect
     if such record date had not been fixed.

(d) 
     (i) For the purpose of any computation hereunder, the "current per share
         market price" of any security (a "Security" for the purpose of this
         Section 11(d)(i)) on any date shall be deemed to be the average of
         the daily closing prices per share of such Security for the 30
         consecutive Trading Days (as such term is hereinafter defined)
         immediately prior to such date; provided, however, that in the event
         that the current per share market price of the Security is determined
         during a period following the announcement by the issuer of such
         Security of (A) a dividend or distribution on such Security payable
         in shares of such Security or securities convertible into such
         shares, or (B) any subdivision, combination or reclassification of
         such Security or securities convertible into such shares, or (C) any
         subdivision, combination or reclassification of such Security and
         prior to the expiration of 30 Trading Days after the ex-dividend date
         for such dividend or distribution, or the record date for such
         subdivision, combination or reclassification, then, and in each such
         case, the current per share market price shall be appropriately
         adjusted to reflect the current market price per share equivalent of
         such Security. The closing price for each day shall be the last sale
         price, regular way, or, in case no such sale takes place on such day,
         the average of the closing bid and asked prices, regular way, in
         either case as reported in the principal consolidated transaction
         reporting system with respect to securities listed or admitted to
         trading on the New York Stock Exchange or, if the Security is not
         listed or admitted to trading on the New York Stock Exchange, as
         reported in the principal consolidated

                                       17
<PAGE>
 
        transaction reporting system with respect to securities listed on the
        principal national securities exchange on which the Security is listed
        or admitted to trading or as reported on the Nasdaq National Market
        or, if the Security is not listed or admitted to trading on any
        national securities exchange or reported on the Nasdaq National
        Market, the last quoted price or, if not so quoted, the average of the
        high bid and low asked prices in the over-the-counter market, as
        reported by the National Association of Securities Dealers, Inc.
        Automated Quotations System ("Nasdaq") or such other system then in
        use, or, if on any such date the Security is not quoted by any such
        organization, the average of the closing bid and asked prices as
        furnished by a professional market maker making a market in the
        Security selected by the Board of Directors of the Company or, if on
        any such date no professional market maker is making a market in the
        Security, the price as determined in good faith by the Board of
        Directors. The term "Trading Day" shall mean a day on which the
        principal national securities exchange on which the Security is listed
        or admitted to trading is open for the transaction of business or, if
        the Security is not listed or admitted to trading on any national
        securities exchange, a Business Day.

   (ii) For the purpose of any computation hereunder, the "current per share
        market price" of the Preferred Shares shall be determined in
        accordance with the method set forth in Section 11(d)(i) hereof. If
        the Preferred Shares are not publicly traded, the "current per share
        market price" of the Preferred Shares shall be conclusively deemed to
        be the current per share market price of the Common Shares as
        determined pursuant to Section 11(d)(i) hereof (appropriately adjusted
        to reflect any stock split, stock dividend or similar transaction
        occurring after the date hereof) multiplied by one hundred. If neither
        the Common Shares nor the Preferred Shares are publicly held or so
        listed or traded, "current per share market price" shall mean the fair
        value per share as determined in good faith by the Board of Directors
        of the Company, whose determination shall be described in a statement
        filed with the Rights Agent.

(e) No adjustment in the Purchase Price shall be required unless such
    adjustment would require an increase or decrease of at least 1% in the
    Purchase Price; provided, however, that any adjustments which by reason of
    this Section 11(e) are not required to be made shall be carried forward
    and taken into account in any subsequent adjustment. All calculations
    under this Section 11 shall be made to the nearest cent or to the nearest
    one one-hundredth of a Preferred Share or one ten-thousandth of any other
    share or security as the case may be. Notwithstanding the first sentence
    of this Section 11(e), any adjustment required by this Section 11 shall be

                                       18
<PAGE>
 
    made no later than the earlier of (i) three years from the date of the
    transaction which requires such adjustment or (ii) the date of the
    expiration of the right to exercise any Rights.

(f) If as a result of an adjustment made pursuant to Section 11(a) hereof, the
    holder of any Right thereafter exercised shall become entitled to receive
    any shares of capital stock of the Company other than Preferred Shares,
    thereafter the number of such other shares so receivable upon exercise of
    any Right shall be subject to adjustment from time to time in a manner and
    on terms as nearly equivalent as practicable to the provisions with
    respect to the Preferred Shares contained in Sections 11(a) through 11(c)
    hereof, inclusive, and the provisions of Sections 7, 9, 10, 13 and 14
    hereof with respect to the Preferred Shares shall apply on like terms to
    any such other shares.

(g) All Rights originally issued by the Company subsequent to any adjustment
    made to the Purchase Price hereunder shall evidence the right to purchase,
    at the adjusted Purchase Price, the number of one one-hundredths of a
    Preferred Share purchasable from time to time hereunder upon exercise of
    the Rights, all subject to further adjustment as provided herein.

(h) Unless the Company shall have exercised its election as provided in
     Section 11(i) hereof, upon each adjustment of the Purchase Price as a
     result of the calculations made in Section 11(b) and Section 11(c)
     hereof, each Right outstanding immediately prior to the making of such
     adjustment shall thereafter evidence the right to purchase, at the
     adjusted Purchase Price, that number of one one-hundredths of a Preferred
     Share (calculated to the nearest one one-millionth of a Preferred Share)
     obtained by (i) multiplying (x) the number of one one-hundredths of a
     Preferred Share covered by a Right immediately prior to this adjustment
     by (y) the Purchase Price in effect immediately prior to such adjustment
     of the Purchase Price and (ii) dividing the product so obtained by the
     Purchase Price in effect immediately after such adjustment of the
     Purchase Price.

(i)  The Company may elect on or after the date of any adjustment of the
     Purchase Price to adjust the number of Rights, in substitution for any
     adjustment in the number of one one-hundredths of a Preferred Share
     purchasable upon the exercise of a Right.  Each of the Rights outstanding
     after such adjustment of the number of Rights shall be exercisable for the
     number of one one-hundredths of a Preferred Share for which a Right was
     exercisable immediately prior to such adjustment.  Each Right held of
     record prior to such adjustment of the number of Rights shall become that
     number of Rights (calculated to the nearest one ten-thousandth) obtained by
     dividing the Purchase Price in effect immediately prior to adjustment of
     the Purchase Price by the Purchase Price in effect immediately after
     adjustment of the Purchase Price.  The Company shall make a public
     announcement of its election to adjust the number of Rights, indicating the

                                       19
<PAGE>
 
     record date for the adjustment, and, if known at the time, the amount of
     the adjustment to be made.  This record date may be the date on which the
     Purchase Price is adjusted or any day thereafter, but, if the Right
     Certificates have been issued, shall be at least 10 days later than the
     date of the public announcement.  If Right Certificates have been issued,
     upon each adjustment of the number of Rights pursuant to this Section
     11(i), the Company shall, as promptly as practicable, cause to be
     distributed to holders of record of Right Certificates on such record date
     Right Certificates evidencing, subject to Section 14 hereof, the additional
     Rights to which such holders shall be entitled as a result of such
     adjustment, or, at the option of the Company, shall cause to be distributed
     to such holders of record in substitution and replacement for the Right
     Certificates held by such holders prior to the date of adjustment, and upon
     surrender thereof, if required by the Company, new Right Certificates
     evidencing all the Rights to which such holders shall be entitled after
     such adjustment.  Right Certificates so to be distributed shall be issued,
     executed and countersigned in the manner provided for herein and shall be
     registered in the names of the holders of record of Right Certificates on
     the record date specified in the public announcement.

(j)  Irrespective of any adjustment or change in the Purchase Price or the
     number of one one-hundredths of a Preferred Share issuable upon the
     exercise of the Rights, the Right Certificates theretofore and thereafter
     issued may continue to express the Purchase Price and the number of one
     one-hundredths of a Preferred Share which were expressed in the initial
     Right Certificates issued hereunder.

(k)  Before taking any action that would cause an adjustment reducing the
     Purchase Price below one one-hundredth of the then par value, if any, of
     the Preferred Shares issuable upon exercise of the Rights, the Company
     shall take any corporate action which may, in the opinion of its counsel,
     be necessary in order that the Company may validly and legally issue fully
     paid and nonassessable Preferred Shares at such adjusted Purchase Price.

(l)  In any case in which this Section 11 shall require that an adjustment in
     the Purchase Price be made effective as of a record date for a specified
     event, the Company may elect to defer until the occurrence of such event
     the issuing to the holder of any Right exercised after such record date of
     the Preferred Shares and other capital stock or securities of the Company,
     if any, issuable upon such exercise on the basis of the Purchase Price in
     effect prior to such adjustment; provided, however, that the Company shall
     deliver to such holder a due bill or other appropriate instrument
     evidencing such holder's right to receive such additional shares upon the
     occurrence of the event requiring such adjustment.

(m)  The Company covenants and agrees that, after the Distribution Date, it will
     not, except as permitted by Section 23 or Section 27 hereof, take (or

                                       20
<PAGE>
 
     permit any Subsidiary to take) any action the purpose of which is to, or if
     at the time such action is taken it is reasonably foreseeable that the
     effect of such action is to, materially diminish or eliminate the benefits
     intended to be afforded by the Rights.  Any such action taken by the
     Company during any period after any Person becomes an Acquiring Person but
     prior to the Distribution Date shall be null and void unless such action
     could be taken under this Section 11(m) from and after the Distribution
     Date.

(n)  Anything in this Section 11 to the contrary notwithstanding, the Company
     shall be entitled to make such reductions in the Purchase Price, in
     addition to those adjustments expressly required by this Section 11, as and
     to the extent that it in its sole discretion shall determine to be
     advisable in order that any consolidation or subdivision of the Preferred
     Shares, issuance wholly for cash of any Preferred Shares at less than the
     current market price, issuance wholly for cash of Preferred Shares or
     securities which by their terms are convertible into or exchangeable for
     Preferred Shares, dividends on Preferred Shares payable in Preferred Shares
     or issuance of rights, options or warrants referred to hereinabove in
     Section 11(b), hereafter made by the Company to holders of its Preferred
     Shares shall not be taxable to such shareholders.

(o)  In the event that at any time after the date of this Agreement and prior to
     the Distribution Date, the Company shall (i) declare or pay any dividend on
     the Common Shares payable in Common Shares or (ii) effect a subdivision,
     combination or consolidation of the Common Shares (by reclassification or
     otherwise than by payment of dividends in Common Shares) into a greater or
     lesser number of Common Shares, then in any such case (A) the number of one
     one-hundredths of a Preferred Share purchasable after such event upon
     proper exercise of each Right shall be determined by multiplying the number
     of one one-hundredths of a Preferred Share so purchasable immediately prior
     to such event by a fraction, the numerator of which is the number of Common
     Shares outstanding immediately before such event and the denominator of
     which is the number of Common Shares outstanding immediately after such
     event, and (B) each Common Share outstanding immediately after such event
     shall have issued with respect to it that number of Rights which each
     Common Share outstanding immediately prior to such event had issued with
     respect to it.  The adjustments provided for in this Section 11(o) shall be
     made successively whenever such a dividend is declared or paid or such a
     subdivision, combination or consolidation is effected.

(p)  The exercise of Rights under Section 11(a)(ii) hereof shall only result in
     the loss of rights under Section 11(a)(ii) hereof to the extent so
     exercised and shall not otherwise affect the rights represented by the
     Rights under this Agreement, including the rights represented by Section 13
     hereof.

                                       21
<PAGE>
 
SECTION 12. CERTIFICATE OF ADJUSTED PURCHASE PRICE OR NUMBER OF SHARES.
     Whenever an adjustment is made as provided in Sections 11 and 13 hereof,
     the Company shall promptly (a) prepare a certificate setting forth such
     adjustment, and a brief statement of the facts accounting for such
     adjustment, (b) file with the Rights Agent and with each transfer agent
     for the Common Shares or the Preferred Shares a copy of such certificate
     and (c) mail a brief summary thereof to each holder of a Right
     Certificate in accordance with Section 25 hereof. The Rights Agent shall
     be fully protected in relying on any such certificate and on any
     adjustment therein contained and shall not be deemed to have knowledge of
     any adjustment unless and until it shall have received such certificate.

SECTION 13. CONSOLIDATION, MERGER OR SALE OR TRANSFER OF ASSETS OR EARNING 
            POWER.

     (a) In the event that, following the Shares Acquisition Date or, if a
         Transaction is proposed, the Distribution Date, either directly or
         indirectly (x) the Company shall consolidate with, or merge with and
         into, any Interested Shareholder, or if in such merger or
         consolidation all holders of Common Stock are not treated alike, any
         other Person, (y) any Interested Shareholder, or if in such merger or
         consolidation all holders of Common Stock are not treated alike, any
         other Person shall consolidate with the Company, or merge with and
         into the Company, and the Company shall be the continuing or
         surviving corporation of such merger (other than, in the case of
         either transaction described in (x) or (y), a merger or consolidation
         which would result in all of the voting power represented by the
         securities of the Company outstanding immediately prior thereto
         continuing to represent (either by remaining outstanding or by being
         converted into securities of the surviving entity) all of the voting
         power represented by the securities of the Company or such surviving
         entity outstanding immediately after such merger or consolidation and
         the holders of such securities not having changed as a result of such
         merger or consolidation), or (z) the Company shall sell, mortgage or
         otherwise transfer (or one or more of its subsidiaries shall sell,
         mortgage or otherwise transfer), in one or more transactions, assets
         or earning power aggregating more than 50% of the assets or earning
         power of the Company and its subsidiaries (taken as a whole) to any
         Interested Shareholder or Shareholders, or if in such transaction all
         holders of Common Stock are not treated alike, any other Person,
         (other than the Company or any Subsidiary of the Company in one or
         more transactions each of which individually and the aggregate does
         not violate Section 13(d) hereof) then, and in each such case, proper
         provision shall be made so that (i) each holder of a Right, subject
         to Section 11(a)(ii) hereof, shall have the right to receive, upon
         the exercise thereof at a price equal to the then current Purchase
         Price multiplied by the number of one one-hundredths of a Preferred
         Share for which a Right is then exercisable in accordance with the
         terms of this Agreement and in lieu of Preferred Shares, such number
         of freely tradeable Common Shares of the Principal Party (as such
         term is hereinafter defined), free and clear 

                                       22
<PAGE>
 
         of liens, rights of call or first refusal, encumbrances or other
         adverse claims, as shall be equal to the result obtained by (A)
         multiplying the then current Purchase Price by the number of one one-
         hundredths of a Preferred Share for which a Right is then exercisable
         (without taking into account any adjustment previously made pursuant
         to Section 11(a)(ii) hereof) and dividing that product by (B) 50% of
         the then current per share market price of the Common Shares of such
         Principal Party (determined pursuant to Section 11(d) hereof) on the
         date of consummation of such consolidation, merger, sale or transfer;
         (ii) such Principal Party shall thereafter be liable for, and shall
         assume, by virtue of such consolidation, merger, sale or transfer,
         all the obligations and duties of the Company pursuant to this
         Agreement; (iii) the term "Company" shall thereafter be deemed to
         refer to such Principal Party, it being specifically intended that
         the provisions of Section 11 hereof shall apply to such Principal
         Party; and (iv) such Principal Party shall take such steps
         (including, but not limited to, the reservation of a sufficient
         number of shares of its Common Shares in accordance with Section 9
         hereof) in connection with such consummation as may be necessary to
         assure that the provisions hereof shall thereafter be applicable, as
         nearly as reasonably may be, in relation to its Common Shares
         thereafter deliverable upon the exercise of the Rights.

(b)  "Principal Party" shall mean:

     (i) in the case of any transaction described in clause (x) or (y) of the
         first sentence of Section 13(a) hereof, the Person that is the issuer
         of any securities into which Common Shares are converted in such
         merger or consolidation, and if no securities are so issued, the
         Person that is the other party to the merger or consolidation (or, if
         applicable, the Company, if it is the surviving corporation); and

    (ii) in the case of any transaction described in (z) of the first sentence
         of Section 13(a) hereof, the Person that is the party receiving the
         greatest portion of the assets or earning power transferred pursuant
         to such transaction or transactions;

    provided, however, that in any case, (1) if the Common Shares of such
    Person are not at such time and have not been continuously over the
    preceding 12-month period registered under Section 12 of the Exchange Act,
    and such Person is a direct or indirect subsidiary or Affiliate of another
    Person the Common Shares of which are and have been so registered,
    "Principal Party" shall refer to such other Person; (2) if such Person is
    a subsidiary, directly or indirectly, or Affiliate of more than one
    Person, the Common Shares of two or more of which are and have been so
    registered, "Principal Party" shall refer to whichever of such Persons is
    the issuer of the Common Shares having the greatest aggregate market
    value; and (3) if such Person is owned, directly or indirectly, by a joint
    venture 

                                       23
<PAGE>
 
    formed by two or more Persons that are not owned, directly or indirectly,
    by the same Person, the rules set forth in (1) and (2) above shall apply
    to each of the chains of ownership having an interest in such joint
    venture as if such party were a "subsidiary" of both or all of such joint
    venturers and the Principal Parties in each such chain shall bear the
    obligations set forth in this Section 13 in the same ratio as their direct
    or indirect interests in such Person bear to the total of such interests.

(C) The Company shall not consummate any such consolidation, merger, sale or
    transfer unless the Principal Party shall have a sufficient number of
    authorized Common Shares that have not been issued or reserved for
    issuance to permit the exercise in full of the Rights in accordance with
    this Section 13 and unless prior thereto the Company and each Principal
    Party and each other Person who may become a Principal Party as a result
    of such consolidation, merger, sale or transfer shall have (i) executed
    and delivered to the Rights Agent a supplemental agreement providing for
    the terms set forth in paragraphs (a) and (b) of this Section 13 and (ii)
    prepared, filed and had declared and remain effective a registration
    statement under the Act on the appropriate form with respect to the Rights
    and the securities exercisable upon exercise of the Rights and further
    providing that, as soon as practicable after the date of any
    consolidation, merger, sale or transfer of assets mentioned in paragraph
    (a) of this Section 13, the Principal Party at its own expense will:

    (i) cause the registration statement under the Act with respect to the
        Rights and the securities purchasable upon exercise of the Rights on
        an appropriate form to remain effective (with a prospectus at all
        times meeting the requirements of the Act) until the Final Expiration
        Date;

   (ii) use its best efforts to qualify or register the Rights and the
        securities purchasable upon exercise of the Rights under the blue sky
        laws of such jurisdictions as may be necessary or appropriate;

  (iii) list the Rights and the securities purchasable upon exercise of the
        Rights on each national securities exchange on which the Common Shares
        were listed prior to the consummation of such consolidation, merger,
        sale or transfer or on the Nasdaq National Market if the Common Shares
        were listed on the Nasdaq National Market or, if the Common Shares
        were not listed on a national securities exchange or the Nasdaq
        National Market prior to the consummation of such consolidation,
        merger, sale or transfer, on a national securities exchange or the
        Nasdaq National Market; and

   (iv) deliver to holders of the Rights historical financial statements for
        the Principal Party and each of its Affiliates which comply in all
        material respects with the requirements for registration on Form 10

                                       24
<PAGE>
 
        under the Exchange Act.

      The provisions of this Section 13 shall similarly apply to successive
      mergers or consolidations or sales or other transfers.

      (d) After the Distribution Date, the Company covenants and agrees that
          it shall not (i) consolidate with, (ii) merge with or into, or (iii)
          sell or transfer to, in one or more transactions, assets or earning
          power aggregating more than 50% of the assets or earning power of
          the Company and its subsidiaries taken as a whole, any other Person
          (other than a Subsidiary of the Company in a transaction which does
          not violate Section 11(m) hereof), if (x) at the time of or after
          such consolidation, merger or sale there are any charter or bylaw
          provisions or any rights, warrants or other instruments or
          securities outstanding, agreements in effect or any other action
          taken which would diminish or otherwise eliminate the benefits
          intended to be afforded by the Rights or (y) prior to,
          simultaneously with or immediately after such consolidation, merger
          or sale, the shareholders of the Person who constitutes, or would
          constitute, the "Principal Party" for purposes of Section 13(a)
          hereof shall have received a distribution of Rights previously owned
          by such Person or any of its Affiliates and Associates. The Company
          shall not consummate any such consolidation, merger, sale or
          transfer unless prior thereto the Company and such other Person
          shall have executed and delivered to the Rights Agent a supplemental
          agreement evidencing compliance with this Section 13(d).

SECTION 14. FRACTIONAL RIGHTS AND FRACTIONAL SHARES.

      (a) The Company shall not be required to issue fractions of Rights or to
          distribute Right Certificates which evidence fractional Rights. In
          lieu of such fractional Rights, there shall be paid to the
          registered holders of the Right Certificates with regard to which
          such fractional Rights would otherwise be issuable, an amount in
          cash equal to the same fraction of the current market value of a
          whole Right. For the purposes of this Section 14(a), the current
          market value of a whole Right shall be the closing price of the
          Rights for the Trading Day immediately prior to the date on which
          such fractional Rights would have been otherwise issuable. The
          closing price for any day shall be the last sale price, regular way,
          or, in case no such sale takes place on such day, the average of the
          closing bid and asked prices, regular way, in either case as
          reported in the principal consolidated transaction reporting system
          with respect to securities listed or admitted to trading on the New
          York Stock Exchange or, if the Rights are not listed or admitted to
          trading on the New York Stock Exchange, as reported in the principal
          consolidated transaction reporting system with respect to securities
          listed on the principal national securities exchange on which the
          Rights are listed or admitted to trading or as reported on the
          Nasdaq National Market or, if the Rights are not listed or admitted
          to trading on any national securities exchange or reported on the
          Nasdaq 

                                       25
<PAGE>
 
          National Market, the last quoted price or, if not so quoted, the
          average of the high bid and low asked prices in the over-the-counter
          market, as reported by Nasdaq or such other system then in use or,
          if on any such date the Rights are not quoted by any such
          organization, the average of the closing bid and asked prices as
          furnished by a professional market maker making a market in the
          Rights selected by the Board of Directors of the Company. If on any
          such date no such market maker is making a market in the Rights, the
          fair value of the Rights on such date as determined in good faith by
          the Board of Directors of the Company shall be used.

     (b)  The Company shall not be required to issue fractions of Preferred
          Shares (other than fractions which are integral multiples of one one-
          hundredth of a Preferred Share) upon exercise of the Rights or to
          distribute certificates which evidence fractional Preferred Shares
          (other than fractions which are integral multiples of one one-
          hundredth of a Preferred Share). Fractions of Preferred Shares in
          integral multiples of one one-hundredth of a Preferred Share may, at
          the election of the Company, be evidenced by depositary receipts;
          provided, however, that holders of such depositary receipts shall
          have all of the designations and the powers, preferences and rights,
          and the qualifications, limitations and restrictions to which they
          are entitled as beneficial owners of the Preferred Shares
          represented by such depositary receipts. In lieu of fractional
          Preferred Shares that are not integral multiples of one one-
          hundredth of a Preferred Share, the Company shall pay to the
          registered holders of Right Certificates at the time such Rights are
          exercised as herein provided an amount in cash equal to the same
          fraction of the current market value of one Preferred Share. For the
          purposes of this Section 14(b), the current market value of a
          Preferred Share shall be the current per share market price of the
          Preferred Shares (as determined pursuant to the second sentence of
          Section 11(d)(i) hereof) for the Trading Day immediately prior to
          the date of such exercise (or, if not publicly traded, in accordance
          with Section 11(d)(ii) hereof).

     (c)  Following the occurrence of one of the transactions or events
          specified in Section 11 hereof giving rise to the right to receive
          Common Shares, capital stock equivalents (other than Preferred
          Shares) or other securities upon the exercise of a Right, the
          Company shall not be required to issue fractions of Common Shares or
          units of such Common Shares, capital stock equivalents or other
          securities upon exercise of the Rights or to distribute certificates
          which evidence fractional Common Shares, capital stock equivalents
          or other securities. In lieu of fractional Common Shares, capital
          stock equivalents or other securities, the Company shall pay to the
          registered holders of Right Certificates at the time such Rights are
          exercised as herein provided an amount in cash equal to the same
          fraction of the current market value of one Common Share or unit of
          such Common Shares, capital stock equivalents or other securities.
          For purposes of this Section 14(c), the current market value shall
          be the 

                                       26
<PAGE>
 
          current per share market price (as determined pursuant to Section
          11(d)(i) hereof) for the Trading Day immediately prior to the date
          of such exercise and, if such capital stock equivalent is not
          traded, each such capital stock equivalent shall have the value of
          one one-hundredth of a Preferred Share.


     (d)  The holder of a Right by the acceptance of the Right expressly
          waives his right to receive any fractional Rights or any fractional
          shares upon exercise of a Right (except as provided above).

SECTION 15. RIGHTS OF ACTION. All rights of action in respect of this
          Agreement, excepting the rights of action given to the Rights Agent
          under Sections 18 and 20 hereof, are vested in the respective
          registered holders of the Right Certificates (and, prior to the
          Distribution Date, the registered holders of the Common Shares) and
          any registered holder of any Right Certificate (or, prior to the
          Distribution Date, of the Common Shares), without the consent of the
          Rights Agent or of the holder of any other Right Certificate (or,
          prior to the Distribution Date, of the Common Shares), may, in his
          own behalf and for his own benefit, enforce, and may institute and
          maintain any suit, action or proceeding against the Company to
          enforce, or otherwise act in respect of, his right to exercise the
          Rights evidenced by such Right Certificate in the manner provided in
          such Right Certificate and in this Agreement. Without limiting the
          foregoing or any remedies available to the holders of Rights, it is
          specifically acknowledged that the holders of Rights would not have
          an adequate remedy at law for any breach of this Agreement and will
          be entitled to specific performance of the obligations under, and
          injunctive relief against actual or threatened violations of the
          obligations of any Person subject to, this Agreement. Holders of
          Rights shall be entitled to recover the reasonable costs and
          expenses, including attorneys fees, incurred by them in any action
          to enforce the provisions of this Agreement.

SECTION 16. AGREEMENT OF RIGHT HOLDERS. Every holder of a Right, by accepting
          the same, consents and agrees with the Company and the Rights Agent
          and with every other holder of a Right that:

          (a) prior to the Distribution Date, the Rights will be transferable
              only in connection with the transfer of the Common Shares;

          (b) after the Distribution Date, the Right Certificates are
              transferable (subject to the provisions of this Rights
              Agreement) only on the registry books of the Rights Agent if
              surrendered at the principal office of the Rights Agent, duly
              endorsed or accompanied by a proper instrument of transfer; and

                                       27
<PAGE>
 
          (c) the Company and the Rights Agent may deem and treat the person
              in whose name the Right Certificate (or, prior to the
              Distribution Date, the associated Common Shares certificate) is
              registered as the absolute owner thereof and of the Rights
              evidenced thereby (notwithstanding any notations of ownership or
              writing on the Right Certificates or the associated Common
              Shares certificate made by anyone other than the Company or the
              Rights Agent) for all purposes whatsoever, and neither the
              Company nor the Rights Agent shall be affected by any notice to
              the contrary.

SECTION 17. RIGHT CERTIFICATE HOLDER NOT DEEMED A SHAREHOLDER. No holder, as
          such, of any Right Certificate shall be entitled to vote, receive
          dividends or be deemed for any purpose the holder of the Preferred
          Shares or any other securities of the Company which may at any time
          be issuable on the exercise of the Rights represented thereby, nor
          shall anything contained herein or in any Right Certificate be
          construed to confer upon the holder of any Right Certificate, as
          such, any of the rights of a shareholder of the Company or any right
          to vote for the election of directors or upon any matter submitted
          to shareholders at any meeting thereof, or to give or withhold
          consent to any corporate action, or to receive notice of meetings or
          other actions affecting shareholders (except as provided in Section
          25 hereof), or to receive dividends or subscription rights, or
          otherwise, until the Right or Rights evidenced by such Right
          Certificate shall have been exercised in accordance with the
          provisions hereof.

SECTION 18. CONCERNING THE RIGHTS AGENT. The Company agrees to pay to the
          Rights Agent reasonable compensation for all services rendered by it
          hereunder and, from time to time, on demand of the Rights Agent, its
          reasonable expenses and counsel fees and other disbursements
          incurred in the administration and execution of this Agreement and
          the exercise and performance of its duties hereunder. The Company
          also agrees to indemnify the Rights Agent for, and to hold it
          harmless against, any loss, liability, or expense, incurred without
          gross negligence, bad faith or willful misconduct on the part of the
          Rights Agent, for anything done or omitted by the Rights Agent in
          connection with the acceptance and administration of this Agreement,
          including the costs and expenses of defending against any claim of
          liability in the premises. The indemnity provided herein shall
          survive the expiration of the Rights and the termination of this
          Agreement.


          The Rights Agent shall be protected and shall incur no liability for,
          or in respect of any action taken, suffered or omitted by it in
          connection with, its administration of this Agreement in reliance upon
          any Right Certificate or certificate for the Preferred Shares or
          Common Shares or for other securities of the Company, instrument of
          assignment or transfer, power of attorney, endorsement, affidavit,
          letter, notice, direction, consent, certificate, statement, or other
          paper or document believed by it to be genuine and to be signed,
          executed and, where necessary, verified or acknowledged, by the proper
          person or persons, or otherwise upon the advice of counsel as set
          forth in Section 20 hereof.  In no case will the Rights Agent be
          liable for special, indirect, incidental or 

                                       28
<PAGE>
 
          consequential or consequential loss or damage at any kind whatsoever
          (including but not limited to lost profits), even if the Rights
          Agent has been advised of such loss or damage.

SECTION 19. MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS AGENT. Any
          corporation into which the Rights Agent or any successor Rights
          Agent may be merged or with which it may be consolidated, or any
          corporation resulting from any merger or consolidation to which the
          Rights Agent or any successor Rights Agent shall be a party, or any
          corporation succeeding to the shareholder services or corporate
          trust business of the Rights Agent or any successor Rights Agent,
          shall be the successor to the Rights Agent under this Agreement
          without the execution or filing of any paper or any further act on
          the part of any of the parties hereto, provided that such
          corporation would be eligible for appointment as a successor Rights
          Agent under the provisions of Section 21 hereof. In case at the time
          such successor Rights Agent shall succeed to the agency created by
          this Agreement any of the Right Certificates shall have been
          countersigned but not delivered, any such successor Rights Agent may
          adopt the countersignature of the predecessor Rights Agent and
          deliver such Right Certificates so countersigned; and in case at
          that time any of the Right Certificates shall not have been
          countersigned, any successor Rights Agent may countersign such Right
          Certificates either in the name of the predecessor Rights Agent or
          in the name of the successor Rights Agent; and in all such cases
          such Right Certificates shall have the full force provided in the
          Right Certificates and in this Agreement.

          In case at any time the name of the Rights Agent shall be changed and
          at such time any of the Right Certificates shall have been
          countersigned but not delivered, the Rights Agent may adopt the
          countersignature under its prior name and deliver Right Certificates
          so countersigned; and in case at that time any of the Right
          Certificates shall not have been countersigned, the Rights Agent may
          countersign such Right Certificates either in its prior name or in its
          changed name; and in all such cases such Right Certificates shall have
          the full force provided in the Right Certificates and in this
          Agreement.

SECTION 20. DUTIES OF RIGHTS AGENT. The Rights Agent undertakes the duties and
          obligations imposed by this Agreement upon the following terms and
          conditions, by all of which the Company and the holders of Right
          Certificates, by their acceptance thereof, shall be bound:

          (a)  The Rights Agent may consult with legal counsel of its choice
               (who may be legal counsel for the Company), and the opinion of
               such counsel shall be full and complete authorization and
               protection to the Rights Agent as to any action taken or
               omitted by it in good faith and in accordance with such
               opinion.

          (b)  Whenever in the performance of its duties under this Agreement
               the Rights Agent shall deem it necessary or desirable that any
               fact or matter be proved or established by the Company prior to
               taking or suffering any 

                                       29
<PAGE>
 
               action hereunder, such fact or matter (unless other evidence in
               respect thereof be herein specifically prescribed) may be
               deemed to be conclusively proved and established by a
               certificate signed by any one of the Chairman of the Board, the
               Chief Executive Officer, the President, the Chief Financial
               Officer, any Vice President, the Treasurer or the Secretary of
               the Company and delivered to the Rights Agent; and such
               certificate shall be full authorization to the Rights Agent for
               any action taken or suffered in good faith by it under the
               provisions of this Agreement in reliance upon such certificate.

          (c)  The Rights Agent shall be liable hereunder to the Company and
               any other Person only for its own gross negligence, bad faith
               or willful misconduct.

          (d)  The Rights Agent shall not be liable for or by reason of any of
               the statements of fact or recitals contained in this Agreement
               or in the Right Certificates (except its countersignature
               thereof) or be required to verify the same, but all such
               statements and recitals are and shall be deemed to have been
               made by the Company only.

          (e)  The Rights Agent shall not be under any responsibility in
               respect of the validity of this Agreement or the execution and
               delivery hereof (except the due execution hereof by the Rights
               Agent) or in respect of the validity or execution of any Right
               Certificate (except its countersignature thereof); nor shall it
               be responsible for any breach by the Company of any covenant or
               condition contained in this Agreement or in any Right
               Certificate; nor shall it be responsible for any change in the
               exercisability of the Rights (including the Rights becoming
               void pursuant to Section 11(a)(ii) hereof) or any adjustment in
               the terms of the Rights (including the manner, method or amount
               thereof) provided for in Sections 3, 11, 13, 23 or 24 hereof,
               or the ascertaining of the existence of facts that would
               require any such change or adjustment (except with respect to
               the exercise of Rights evidenced by Right Certificates after
               receipt of a certificate pursuant to Section 12 hereof
               describing such change or adjustment); nor shall it by any act
               hereunder be deemed to make any representation or warranty as
               to the authorization or reservation of any Preferred Shares to
               be issued pursuant to this Agreement or any Right Certificate
               or as to whether any Preferred Shares will, when issued, be
               validly authorized and issued, fully paid and nonassessable.

          (f)  The Company agrees that it will perform, execute, acknowledge
               and deliver or cause to be performed, executed, acknowledged
               and delivered all such further and other acts, instruments and
               assurances as may reasonably be required by the Rights Agent
               for the carrying out or performing by the Rights Agent of the
               provisions of this Agreement.

          (g)  The Rights Agent is hereby authorized and directed to accept
               instructions with respect to the performance of its duties
               hereunder from any one of the 

                                       30
<PAGE>
 
               Chairman of the Board, the Chief Executive Officer, the
               President, the Chief Financial Officer, any Vice President, the
               Secretary or the Treasurer of the Company, and to apply to such
               officers for advice or instructions in connection with its
               duties, and it shall not be liable for any action taken or
               suffered by it in good faith in accordance with instructions of
               any such officer or for any delay in acting while waiting for
               those instructions. Any application by the Rights Agent for
               written instructions from the Company may, at the option of the
               Rights Agent, set forth in writing any action proposed to be
               taken or omitted by the Rights Agent with respect to its duties
               or obligations under this Agreement and the date on and/or
               after which such action shall be taken or omitted and the
               Rights Agent shall not be liable for any action taken or
               omitted in accordance with a proposal included in any such
               application on or after the date specified therein (which date
               shall not be less than three business days after the date
               indicated in such application unless any such officer shall
               have consented in writing to an earlier date) unless, prior to
               taking or omitting any such action, the Rights Agent has
               received written instructions in response to such application
               specifying the action to be taken or omitted.

          (h)  The Rights Agent and any shareholder, director, officer or
               employee of the Rights Agent may buy, sell or deal in any of
               the Rights or other securities of the Company or become
               pecuniarily interested in any transaction in which the Company
               may be interested, or contract with or lend money to the
               Company or otherwise act as fully and freely as though it were
               not Rights Agent under this Agreement. Nothing herein shall
               preclude the Rights Agent from acting in any other capacity for
               the Company or for any other legal entity.

          (i)  The Rights Agent may execute and exercise any of the rights or
               powers hereby vested in it or perform any duty hereunder either
               itself or by or through its attorneys or agents, and the Rights
               Agent shall not be answerable or accountable for any act,
               default, neglect or misconduct of any such attorneys or agents
               or for any loss to the Company resulting from any such act,
               default, neglect or misconduct, provided reasonable care was
               exercised in the selection and continued employment thereof.

          (j)  No provision of this Agreement shall require the Rights Agent
               to expend or risk its own funds or otherwise incur any
               financial liability in the performance of any of its duties
               hereunder or in the exercise of its rights if there shall be
               reasonable grounds for believing that repayment of such funds
               or adequate indemnification against such risk or liability is
               not reasonably assured to it.

          (k)  If, with respect to any Right Certificate surrendered to the
               Rights Agent for exercise or transfer, the certificate attached
               to the form of assignment or form of election to purchase, as
               the case may be, has not been executed, 

                                       31
<PAGE>
 
               the Rights Agent shall not take any further action with respect
               to such requested exercise of transfer without first consulting
               with the Company.

SECTION 21. CHANGE OF RIGHTS AGENT. The Rights Agent or any successor Rights
          Agent may resign and be discharged from its duties under this
          Agreement upon 30 days' notice in writing mailed to the Company and
          to each transfer agent for the Common Shares or Preferred Shares by
          registered or certified mail, and to the holders of the Right
          Certificates by first-class mail. The Company may remove the Rights
          Agent or any successor Rights Agent upon 30 days' notice in writing,
          mailed to the Rights Agent or successor Rights Agent, as the case
          may be, and to each transfer agent for the Common Shares or
          Preferred Shares by registered or certified mail, and to the holders
          of the Right Certificates by first-class mail. If the Rights Agent
          shall resign or be removed or shall otherwise become incapable of
          acting, the Company shall appoint a successor to the Rights Agent.
          If the Company shall fail to make such appointment within a period
          of 30 days after giving notice of such removal or after it has been
          notified in writing of such resignation or incapacity by the
          resigning or incapacitated Rights Agent or by the holder of a Right
          Certificate (who shall, with such notice, submit his Right
          Certificate for inspection by the Company), then the registered
          holder of any Right Certificate may apply to any court of competent
          jurisdiction for the appointment of a new Rights Agent. Any
          successor Rights Agent, whether appointed by the Company or by such
          a court, shall be either (a) a corporation business trust or limited
          liability company organized and doing business under the laws of the
          United States or of any other state of the United States which is
          authorized under such laws to exercise corporate trust or stock
          transfer powers and is subject to supervision or examination by
          federal or state authority and which has at the time of its
          appointment as Rights Agent a combined capital and surplus of at
          least $50 million or (b) a direct or indirect wholly owned
          subsidiary of such an entity or its wholly owning parent. After
          appointment, the successor Rights Agent shall be vested with the
          same powers, rights, duties and responsibilities as if it had been
          originally named as Rights Agent without further act or deed; but
          the predecessor Rights Agent shall deliver and transfer to the
          successor Rights Agent any property at the time held by it
          hereunder, and execute and deliver any further assurance,
          conveyance, act or deed necessary for the purpose. Not later than
          the effective date of any such appointment the Company shall file
          notice thereof in writing with the predecessor Rights Agent and each
          transfer agent for the Common Shares or Preferred Shares, and mail a
          notice thereof in writing to the registered holders of the Right
          Certificates. Failure to give any notice provided for in this
          Section 21, however, or any defect therein, shall not affect the
          legality or validity of the resignation or removal of the Rights
          Agent or the appointment of the successor Rights Agent, as the case
          may be.

                                       32
<PAGE>
 
SECTION 22. ISSUANCE OF NEW RIGHT CERTIFICATES. Notwithstanding any of the
          provisions of this Agreement or of the Rights to the contrary, the
          Company may, at its option, issue new Right Certificates evidencing
          Rights in such form as may be approved by its Board of Directors to
          reflect any adjustment or change in the Purchase Price and the
          number or kind or class of shares or other securities or property
          purchasable under the Right Certificates made in accordance with the
          provisions of this Agreement. In addition, in connection with the
          issuance or sale of Common Shares following the Distribution Date
          and prior to the earlier of the Redemption Date and the Final
          Expiration Date, the Company (a) shall with respect to Common Shares
          so issued or sold pursuant to the exercise of stock options or under
          any employee plan or arrangement in existence prior to the
          Distribution Date, or upon the exercise, conversion or exchange of
          securities, notes or debentures issued by the Company and in
          existence prior to the Distribution Date, and (b) may, in any other
          case, if deemed necessary or appropriate by the Board of Directors
          of the Company, issue Right Certificates representing the
          appropriate number of Rights in connection with such issuance or
          sale; provided, however, that (i) the Company shall not be obligated
          to issue any such Right Certificates if, and to the extent that, the
          Company shall be advised by counsel that such issuance would create
          a significant risk of material adverse tax consequences to the
          Company or the Person to whom such Right Certificate would be
          issued, and (ii) no Right Certificate shall be issued if, and to the
          extent that, appropriate adjustment shall otherwise have been made
          in lieu of the issuance thereof.

SECTION 23. REDEMPTION.

          (a)  The Rights may be redeemed by action of the Board of Directors
               pursuant to Section 23(b) hereof and shall not be redeemed in any
               other manner.

          (b)  
               (i)  The Board of Directors of the Company may, at its option,
                    at any time prior to the earlier of such time as any
                    Person becoming an Acquiring Person or the Final
                    Expiration Date, redeem all but not less than all of the
                    then outstanding Rights at a redemption price of $.01 per
                    Right, appropriately adjusted to reflect any stock split,
                    stock dividend or similar transaction occurring after the
                    date hereof (such redemption price being hereinafter
                    referred to as the "Redemption Price"), and the Company
                    may, at its option, pay the Redemption Price in Common
                    Shares (based on the "current per-share market price," as
                    such term is defined in Section 11(d) hereof, of the
                    Common Shares at the time of redemption), cash or any
                    other form of consideration deemed appropriate by the
                    Board of Directors. The redemption of the Rights by the
                    Board of Directors may be made effective at such time, on
                    such basis and subject to such conditions as the Board of
                    Directors in its sole discretion may establish.
                    Notwithstanding anything contained in 

                                       33
<PAGE>
 
                    this Agreement to the contrary, the Rights shall not be
                    exercisable pursuant to Section 11(a)(ii) hereof prior to
                    the expiration or termination of the Company's right of
                    redemption under this Section 23(b)(i).

              (II)  In addition, the Board of Directors of the Company may, at
                    its option, at any time after the time a Person becomes an
                    Acquiring Person and the expiration of any period during
                    which the holder of Rights may exercise the rights under
                    Section 11(a)(ii) hereof but prior to any event described
                    in clause (x), (y) or (z) of the first sentence of Section
                    13 hereof, redeem all but not less than all of the then
                    outstanding Rights at the Redemption Price (x) in
                    connection with any merger, consolidation or sale or other
                    transfer (in one transaction or in a series of related
                    transactions) of assets or earning power aggregating 50%
                    or more of the assets or earning power of the Company and
                    its subsidiaries (taken as a whole) in which all holders
                    of Common Shares are treated alike and not involving
                    (other than as a holder of Common Shares being treated
                    like all other such holders) an Interested Shareholder or
                    a Transaction Person or (y)(A) if and for so long as the
                    Acquiring Person is not thereafter the Beneficial Owner of
                    15% or more of the then outstanding Common Shares, and (B)
                    at the time of redemption no other Persons are Acquiring
                    Persons.

          (C)  Immediately upon the action of the Board of Directors of the
               Company ordering the redemption of the Rights pursuant to
               Section 23(b) hereof, and without any further action and
               without any notice, the right to exercise the Rights will
               terminate and the only right thereafter of the holders of
               Rights shall be to receive the Redemption Price. The Company
               shall promptly give public notice of any such redemption;
               provided, however, that the failure to give, or any defect in,
               any such notice shall not affect the validity of such
               redemption. Within 10 days after such action of the Board of
               Directors ordering the redemption of the Rights pursuant to
               Section 23(b) hereof, the Company shall mail a notice of
               redemption to all the holders of the then outstanding Rights at
               their last addresses as they appear upon the registry books of
               the Rights Agent or, prior to the Distribution Date, on the
               registry books of the transfer agent for the Common Shares,
               provided, however, that failure to give, or any defect in, any
               such notice shall not affect the validity of such redemption.
               Any notice which is mailed in the manner herein provided shall
               be deemed given, whether or not the holder receives the notice.
               Each such notice of redemption will state the method by which
               the payment of the Redemption Price will be made. Neither the
               Company nor any of its Affiliates or Associates may redeem,
               acquire or purchase for value any Rights at any time in any
               manner other than that specifically set forth in this Section
               23 or in Section 24 hereof, and other than in connection with
               the purchase of 

                                       34
<PAGE>
 
     Common Shares prior to the Distribution Date.

     (d)  The Company may, at its option, discharge all of its obligations
          with respect to any redemption of the Rights by (i) issuing a press
          release announcing the manner of redemption of the Rights and (ii)
          mailing payment of the Redemption Price to the registered holders of
          the Rights at their last addresses as they appear on the registry
          books of the Rights Agent or, prior to the Distribution Date, on the
          registry books of the transfer agent for the Common Shares, and upon
          such action, all outstanding Right Certificates shall be null and
          void without any further action by the Company.

SECTION 24. EXCHANGE.

     (a)  The Board of Directors of the Company may, at its option, at any
          time after any Person becomes an Acquiring Person, exchange all or
          part of the then outstanding and exercisable Rights (which shall not
          include Rights that have become void pursuant to the provisions of
          Section 11(a)(ii) hereof) for Common Shares at an exchange ratio of
          one Common Share per Right, appropriately adjusted to reflect any
          stock split, stock dividend or similar transaction occurring after
          the date hereof (such exchange ratio being hereinafter referred to
          as the "Exchange Ratio"). Notwithstanding the foregoing, the Board
          of Directors shall not be empowered to effect such exchange at any
          time after any Person (other than the Company, any Subsidiary of the
          Company, any employee benefit plan of the Company or any such
          Subsidiary, or any entity holding Common Shares for or pursuant to
          the terms of any such plan), together with all Affiliates and
          Associates of such Person, becomes the Beneficial Owner of 50% or
          more of the Common Shares then outstanding.

     (b)  Immediately upon the action of the Board of Directors of the Company
          ordering the exchange of any Rights pursuant to Section 24(a) hereof
          and without any further action and without any notice, the right to
          exercise such Rights shall terminate and the only right thereafter
          of a holder of such Rights shall be to receive that number of Common
          Shares equal to the number of such Rights held by such holder
          multiplied by the Exchange Ratio. The Company shall promptly give
          public notice of any such exchange; provided, however, that the
          failure to give, or any defect in, such notice shall not affect the
          validity of such exchange. The Company promptly shall mail a notice
          of any such exchange to all of the holders of such Rights at their
          last addresses as they appear upon the registry books of the Rights
          Agent; provided, however, that the failure to give, or any defect
          in, such notice shall not affect the validity of such exchange. Any
          notice which is mailed in the manner herein provided shall be deemed
          given, whether or not the holder receives the notice. Each such
          notice of exchange will state the method by which the exchange of
          the Common Shares for Rights will be effected and, in the event of
          any partial 

                                       35
<PAGE>
 
          exchange, the number of Rights which will be exchanged. Any partial
          exchange shall be effected pro rata based on the number of Rights
          (other than Rights which have become void pursuant to the provisions
          of Section 11(a)(ii) hereof) held by each holder of Rights.

     (c)  In lieu of issuing Common Shares in accordance with Section 24(a)
          hereof, the Company may, if a majority of the Board of Directors
          then in office determines that such action is necessary or
          appropriate and not contrary to the interests of the holders of
          Rights, elect to (and, in the event that there are not sufficient
          authorized but unissued Common Shares to permit any exchange of the
          Rights in accordance with Section 24(a) hereof, the Company shall)
          take all such action as may be necessary to authorize, issue or pay,
          upon the exchange of the Rights, cash (including by way of a
          reduction of the Purchase Price), property, Common Shares, other
          securities or any combination thereof having an aggregate value
          equal to the value of the Common Shares which otherwise would have
          been issuable pursuant to Section 24(a) hereof, which aggregate
          value shall be determined by a nationally recognized investment
          banking firm selected by a majority of the Board of Directors then
          in office. For purposes of the preceding sentence, the value of the
          Common Shares shall be determined pursuant to Section 11(d) hereof.
          Any election pursuant to this Section 24(c) by the Board of
          Directors must be made within 60 days following the date on which
          the event described in Section 11(a)(ii) hereof shall have occurred.
          Following the occurrence on the event described in Section 11(a)(ii)
          hereof, a majority of the Board of Directors then in office may
          suspend the exercisability of the Rights for a period of up to 60
          days following the date on which the event described in Section
          11(a)(ii) hereof shall have occurred to the extent that such
          directors have not determined whether to exercise their rights of
          election under this Section 24(c). In the event of any such
          suspension, the Company shall issue a public announcement stating
          that the exercisability of the Rights has been temporarily
          suspended.

     (d)  The Company shall not be required to issue fractions of Common
          Shares or to distribute certificates which evidence fractional
          Common Shares. In lieu of such fractional Common Shares, the Company
          shall pay to the registered holders of the Right Certificates with
          regard to which such fractional Common Shares would otherwise be
          issuable an amount in cash equal to the same fraction of the current
          market value of a whole Common Share. For the purposes of this
          Section 24(d), the current market value of a whole Common Share
          shall be the closing price of a Common Share (as determined pursuant
          to the second sentence of Section 11(d)(i) hereof) for the Trading
          Day immediately after the date of the first public announcement by
          the Company that an exchange is to be effected pursuant to this
          Section 24.

                                       36
<PAGE>
 
     (e)  The Company shall not be required to issue fractions of Preferred
          Shares (other than fractions which are integral multiples of one one-
          hundredth of a Preferred Share) upon exchange of the Rights or to
          distribute certificates which evidence fractional Preferred Shares
          (other than fractions which are integral multiples of one one-
          hundredth of a Preferred Share). Fractions of Preferred Shares in
          integral multiples of one one-hundredth of a Preferred Share may, at
          the election of the Company, be evidenced by depositary receipts;
          provided, however, that holders of such depositary receipts shall
          have all of the rights, privileges, and preferences to which they
          are entitled as beneficial owners of the Preferred Shares
          represented by such depositary receipts. In lieu of fractional
          Preferred Shares that are not integral multiples of one one-
          hundredth of a Preferred Share, the Company shall pay to the
          registered holders of Right Certificates at the time such Rights are
          exercised as herein provided an amount in cash equal to the same
          fraction of the current market value of one Preferred Share. For the
          purposes of this Section 24(e), the current market value of a
          Preferred Share shall be one hundred (100) times the closing price
          of a Common Share (as determined pursuant to the second sentence of
          Section 11(d)(i) hereof) for the Trading Day immediately after the
          date of the first public announcement by the Company that an
          exchange is to be effected pursuant to this Section 24.

SECTION 25. NOTICE OF CERTAIN EVENTS.

     (a)  In case the Company shall propose (i) to pay any dividend payable in
          stock of any class to the holders of its Preferred Shares or to make
          any other distribution to the holders of its Preferred Shares (other
          than a regular quarterly cash dividend), (ii) to offer to the
          holders of its Preferred Shares rights or warrants to subscribe for
          or to purchase any additional Preferred Shares or shares of stock of
          any class or any other securities, rights or options, (iii) to
          effect any reclassification of its Preferred Shares (other than a
          reclassification involving only the subdivision of outstanding
          Preferred Shares), (iv) to effect any consolidation or merger into
          or with, or to effect any sale or other transfer (or to permit one
          or more of its Subsidiaries to effect any sale or other transfer),
          in one or more transactions, of 50% or more of the assets or earning
          power of the Company and its Subsidiaries (taken as a whole), to any
          other Person, (v) to effect the liquidation, dissolution or winding
          up of the Company, or (vi) to declare or pay any dividend on the
          Common Shares payable in Common Shares or to effect a subdivision,
          combination or consolidation of the Common Shares (by
          reclassification or otherwise than by payment of dividends in Common
          Shares), then, in each such case, the Company shall give to each
          holder of a Right Certificate, in accordance with Section 26 hereof,
          a notice of such proposed action, which shall specify the record
          date for the purpose of such stock dividend, or distribution of
          rights or warrants, or the date on which such reclassification,

                                       37
<PAGE>
 
          consolidation, merger, sale, transfer, liquidation, dissolution, or
          winding up is to take place and the date of participation therein by
          the holders of the Common Shares and/or the Preferred Shares, if any
          such date is to be fixed, and such notice shall be so given in the
          case of any action covered by clause (i) or (ii) above at least 10
          days prior to the record date for determining holders of the
          Preferred Shares for purposes of such action, and in the case of any
          such other action, at least 10 days prior to the date of the taking
          of such proposed action or the date of participation therein by the
          holders of the Common Shares and/or the Preferred Shares, whichever
          shall be the earlier.

     (b)  In case the event set forth in Section 11(a)(ii) hereof shall occur,
          then the Company shall as soon as practicable thereafter give to
          each holder of a Right Certificate, in accordance with Section 26
          hereof, a notice of the occurrence of such event, which notice shall
          describe the event and the consequences of the event to holders of
          Rights under Section 11(a)(ii) hereof.

SECTION 26. NOTICES. Notices or demands authorized by this Agreement to be
     given or made by the Rights Agent or by the holder of any Right
     Certificate to or on the Company shall be sufficiently given or made if
     sent by first-class mail, postage prepaid, addressed (until another
     address is filed in writing with the Rights Agent) as follows:

                    Asyst Technologies, Inc.
                    Attn: Mihir Parikh
                    48761 Kato Road
                    Fremont, CA    94538

     Subject to the provisions of Section 21 hereof, any notice or demand
     authorized by this Agreement to be given or made by the Company or by the
     holder of any Right Certificate to or on the Rights Agent shall be
     sufficiently given or made if sent by first-class mail, postage prepaid,
     addressed (until another address is filed in writing with the Company) as
     follows:


                    BankBoston, N.A.
                    c/o Boston EquiServe Limited Partnership
                    150 Royal Street
                    Canton, MA  02021
                    Attn:  Client Administration


      Notices or demands authorized by this Agreement to be given or made by
      the Company or the Rights Agent to the holder of any Right Certificate
      shall be sufficiently given or made if sent by first-class mail, postage
      prepaid, addressed to such holder at the address of such holder as shown
      on the registry books of the Company.

                                       38
<PAGE>
 
SECTION 27. SUPPLEMENTS AND AMENDMENTS . Prior to the Distribution Date, the
      Company and the Rights Agent shall, if the Company so directs,
      supplement or amend any provision of this Agreement without the approval
      of any holders of the Rights. From and after the Distribution Date, the
      Company and the Rights Agent shall, if the Company so directs, from time
      to time supplement or amend any provision of this Agreement without the
      approval of any holders of Right Certificates in order to (i) cure any
      ambiguity, (ii) correct or supplement any provision contained herein
      which may be defective or inconsistent with any other provisions herein,
      or (iii) change any other provisions with respect to the Rights which
      the Company may deem necessary or desirable; provided, however, that no
      such supplement or amendment shall be made which would adversely affect
      the interests of the holders of Rights (other than the interests of an
      Acquiring Person or its Affiliates or Associates). Any supplement or
      amendment adopted during any period after any Person has become an
      Acquiring Person but prior to the Distribution Date shall become null
      and void unless such supplement or amendment could have been adopted by
      the Company from and after the Distribution Date. Any such supplement or
      amendment shall be evidenced by a writing signed by the Company and the
      Rights Agent. Upon delivery of a certificate from an appropriate officer
      of the Company which states that the proposed supplement or amendment is
      in compliance with the terms of this Section 27, the Rights Agent shall
      execute such supplement or amendment unless the Rights Agent shall have
      determined in good faith that such supplement or amendment would
      adversely affect its interest under this Agreement. Prior to the
      Distribution Date, the interests of the holders of Rights shall be
      deemed coincident with the interests of the holders of Common Shares.

SECTION 28. DETERMINATION AND ACTIONS BY THE BOARD OF DIRECTORS, ETC. For all
      purposes of this Agreement, any calculation of the number of Common
      Shares outstanding at any particular time, including for purposes of
      determining the particular percentage of such outstanding Common Shares
      or any other securities of which any Person is the Beneficial Owner,
      shall be made in accordance with the last sentence of Rule 13d-
      3(d)(1)(i) of the General Rules and Regulations under the Exchange Act
      as in effect on the date of this Agreement. The Board of Directors of
      the Company shall have the exclusive power and authority to administer
      this Agreement and to exercise all rights and powers specifically
      granted to the Board, or the Company, or as may be necessary or
      advisable in the administration of this Agreement, including without
      limitation, the right and power to (i) interpret the provisions of this
      Agreement, and (ii) make all determinations deemed necessary or
      advisable for the administration of this Agreement (including a
      determination to redeem or not redeem the Rights or to amend the
      Agreement). All such actions, calculations, interpretations and
      determinations (including, for purposes of clause (y) below, all
      omissions with respect to the foregoing) which are done or made by the
      Board in good faith, shall (x) be final, conclusive and binding on the
      Rights Agent and the holders of the Rights, and (y) not subject the
      Board to any liability to the holders of the Rights.

                                       39
<PAGE>
 
SECTION 29.  SUCCESSORS. All the covenants and provisions of this Agreement by
             or for the benefit of the Company or the Rights Agent shall bind
             and inure to the benefit of their respective successors and
             assigns hereunder.

SECTION 30.  BENEFITS OF THIS AGREEMENT. Nothing in this Agreement shall be
             construed to give to any person or corporation other than the
             Company, the Rights Agent and the registered holders of the Right
             Certificates (and, prior to the Distribution Date, the Common
             Shares) any legal or equitable right, remedy or claim under this
             Agreement; but this Agreement shall be for the sole and exclusive
             benefit of the Company, the Rights Agent and the registered
             holders of the Right Certificates (and, prior to the Distribution
             Date, the Common Shares).

SECTION 31.  SEVERABILITY. If any term, provision, covenant or restriction of
             this Agreement is held by a court of competent jurisdiction or
             other authority to be invalid, void or unenforceable, the
             remainder of the terms, provisions, covenants and restrictions of
             this Agreement shall remain in full force and effect and shall in
             no way be affected, impaired or invalidated.

SECTION 32.  GOVERNING LAW. This Agreement and each Right Certificate issued
             hereunder shall be deemed to be a contract made under the laws of
             the State of California and for all purposes shall be governed by
             and construed in accordance with the laws of such State
             applicable to contracts to be made and performed entirely within
             such State.

SECTION 33.  COUNTERPARTS. This Agreement may be executed in any number of
             counterparts and each of such counterparts shall for all purposes
             be deemed to be an original, and all such counterparts shall
             together constitute but one and the same instrument.

SECTION 34.  DESCRIPTIVE HEADINGS. Descriptive headings of the several
             Sections of this Agreement are inserted for convenience only and
             shall not control or affect the meaning or construction of any of
             the provisions hereof.

                                       40
<PAGE>
 
     IN WITNESS WHEREOF, parties whereto have caused this Agreement to be duly
executed, all as of the day and year first above written.

ATTEST:                               ASYST TECHNOLOGIES, INC.



By:  /s/ James C. Kitch               By:    /s/ Douglas J. McCutcheon
     ------------------                   ----------------------------
     James C. Kitch                       Douglas J. McCutcheon
     Secretary                            Senior Vice President
                                          and Chief Financial Officer



ATTEST:                                BANKBOSTON, N.A.



By:  /s/ Tyler Clements               By:    /s/ Britta Puschendorf
     ------------------                   -------------------------
     Senior Account Administrator         Senior Account Manager

                                       41
<PAGE>
 
                        (EXHIBIT A TO RIGHTS AGREEMENT)


                          CERTIFICATE OF DETERMINATION

                                       OF

                 SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

                                       OF

                            ASYST TECHNOLOGIES, INC.

                        (Pursuant to Section 401 of the
                      California General Corporation Law)


     The undersigned, Mihir Parikh and James C. Kitch, hereby certify that:

     1.  They are the duly elected and acting Chairman and Chief Executive
Officer and Secretary, respectively, of Asyst Technologies, Inc. (the
"Corporation").

     2.  Pursuant to authority given by the Corporation's Articles of
Incorporation, the Board of Directors of the Corporation has duly adopted the
following resolutions at a meeting duly called and held on _____[DATE]_____:

          RESOLVED, that pursuant to the authority granted to and vested in the
     Board of Directors of the Corporation in accordance with the provisions of
     its Restated Articles of Incorporation, the Board of Directors hereby
     creates a series of Preferred Stock, without par value, of the Corporation
     and hereby states the designation and number of shares, and fixes the
     relative rights, preferences, privileges and restrictions thereof (in
     addition to the provisions set forth in the Restated Articles of
     Incorporation of the Corporation, which are applicable to the Preferred
     Stock of all classes and series), as follows:

          Series A Junior Participating Preferred Stock:

               SECTION 1.  DESIGNATION AND AMOUNT.  Two hundred fifty thousand
     (250,000) shares of Preferred Stock, without par value, are designated
     "Series A Junior Participating Preferred Stock" with the rights,
     preferences, privileges and restrictions specified herein (the "Junior
     Preferred Stock").  Such number of shares may be increased or decreased by
     resolution of the Board of 

                                       1
<PAGE>
 
     Directors; provided, that no decrease shall reduce the number of shares of
     Junior Preferred Stock to a number less than the number of shares then
     outstanding plus the number of shares reserved for issuance upon the
     exercise of outstanding options, rights or warrants or upon the conversion
     of any outstanding securities issued by the Corporation convertible into
     Junior Preferred Stock.

               SECTION 2.  DIVIDENDS AND DISTRIBUTIONS.

               (A) Subject to the rights of the holders of any shares of any
     series of Preferred Stock (or any similar stock) ranking prior and superior
     to the Junior Preferred Stock with respect to dividends, the holders of
     shares of Junior Preferred Stock, in preference to the holders of Common
     Stock, without par value (the "Common Stock"), of the Corporation, and of
     any other junior stock, shall be entitled to receive, when, as and if
     declared by the Board of Directors out of funds legally available for the
     purpose, quarterly dividends payable in cash on the first day of March,
     June, September and December in each year (each such date being referred to
     herein as a "Quarterly Dividend Payment Date"), commencing on the first
     Quarterly Dividend Payment Date after the first issuance of a share or
     fraction of a share of Junior Preferred Stock, in an amount per share
     (rounded to the nearest cent) equal to the greater of (a) $l.00 or (b)
     subject to the provision for adjustment hereinafter set forth, 100 times
     the aggregate per share amount of all cash dividends, and 100 times the
     aggregate per share amount (payable in kind) of all non-cash dividends or
     other distributions, other than a dividend payable in shares of Common
     Stock or a subdivision of the outstanding shares of Common Stock (by
     reclassification or otherwise) declared on the Common Stock since the
     immediately preceding Quarterly Dividend Payment Date or, with respect to
     the first Quarterly Dividend Payment Date, since the first issuance of any
     share or fraction of a share of Junior Preferred Stock.  In the event the
     Corporation shall at any time declare or pay any dividend on the Common
     Stock payable in shares of Common Stock, or effect a subdivision or
     combination or consolidation of the outstanding shares of Common Stock (by
     reclassification or otherwise than by payment of a dividend in shares of
     Common Stock) into a greater or lesser number of shares of Common Stock,
     then in each such case the amount to which holders of shares of Junior
     Preferred Stock were entitled immediately prior to such event under clause
     (b) of the preceding sentence shall be adjusted by multiplying such amount
     by a fraction, the numerator of which is the number of shares of Common
     Stock outstanding immediately after such event and the denominator of which
     is the number of shares of Common Stock that were outstanding immediately
     prior to such event.

               (B) The Corporation shall declare a dividend or distribution on
     the Junior Preferred Stock as provided in paragraph (A) of this Section
     immediately after it declares a dividend or distribution on the Common
     Stock (other than a dividend payable in shares of Common Stock); provided
     that, in the event no dividend or distribution shall have been declared on
     the Common Stock during the period between any Quarterly Dividend Payment
     Date and the next 

                                       2
<PAGE>
 
     subsequent Quarterly Dividend Payment Date, a dividend of $1.00 per share
     on the Junior Preferred Stock shall nevertheless be payable on such
     subsequent Quarterly Dividend Payment Date.

               (C) Dividends shall begin to accrue and be cumulative on
     outstanding shares of Junior Preferred Stock from the Quarterly Dividend
     Payment Date next preceding the date of issue of such shares, unless the
     date of issue of such shares is prior to the record date for the first
     Quarterly Dividend Payment Date, in which case dividends on such shares
     shall begin to accrue from the date of issue of such shares, or unless the
     date of issue is a Quarterly Dividend Payment Date or is a date after the
     record date for the determination of holders of shares of Junior Preferred
     Stock entitled to receive a quarterly dividend and before such Quarterly
     Dividend Payment Date, in either of which events such dividends shall begin
     to accrue and be cumulative from such Quarterly Dividend Payment Date.
     Accrued but unpaid dividends shall not bear interest.  Dividends paid on
     the shares of Junior Preferred Stock in an amount less than the total
     amount of such dividends at the time accrued and payable on such shares
     shall be allocated pro rata on a share-by-share basis among all such shares
     at the time outstanding.  The Board of Directors may fix a record date for
     the determination of holders of shares of Junior Preferred Stock entitled
     to receive payment of a dividend or distribution declared thereon, which
     record date shall be not more than 60 days prior to the date fixed for the
     payment thereof.

               SECTION 3.  VOTING RIGHTS.  The holders of shares of Junior
     Preferred Stock shall have the following voting rights:

               (A) Subject to the provision for adjustment hereinafter set
     forth, each share of Junior Preferred Stock shall entitle the holder
     thereof to 100 votes on all matters submitted to a vote of the shareholders
     of the Corporation.  In the event the Corporation shall at any time declare
     or pay any dividend on the Common Stock payable in shares of Common Stock,
     or effect a subdivision or combination or consolidation of the outstanding
     shares of Common Stock (by reclassification or otherwise than by payment of
     a dividend in shares of Common Stock) into a greater or lesser number of
     shares of Common Stock, then in each such case the number of votes per
     share to which holders of shares of Junior Preferred Stock were entitled
     immediately prior to such event shall be adjusted by multiplying such
     number by a fraction, the numerator of which is the number of shares of
     Common Stock outstanding immediately after such event and the denominator
     of which is the number of shares of Common Stock that were outstanding
     immediately prior to such event.

               (B) Except as otherwise provided herein, in any other Certificate
     of Determination of Preferences creating a series of Preferred Stock or any
     similar stock, or by law, the holders of shares of Junior Preferred Stock
     and the holders of shares of Common Stock and any other capital stock of
     the Corporation having general voting rights shall vote together as one
     class on all matters submitted to a vote of shareholders of the
     Corporation.

                                       3
<PAGE>
 
               (C) Except as set forth herein, or as otherwise provided by law,
     holders of Junior Preferred Stock shall have no special voting rights and
     their consent shall not be required (except to the extent they are entitled
     to vote with holders of Common Stock as set forth herein) for taking any
     corporate action.

               SECTION 4.  CERTAIN RESTRICTIONS.

               (A) Whenever quarterly dividends or other dividends or
     distributions payable on the Junior Preferred Stock as provided in Section
     2 are in arrears, thereafter and until all accrued and unpaid dividends and
     distributions, whether or not declared, on shares of Junior Preferred Stock
     outstanding shall have been paid in full, the Corporation shall not:

                   (i) declare or pay dividends, or make any other
     distributions, on any shares of stock ranking junior (either as to
     dividends or upon liquidation, dissolution or winding up) to the Junior
     Preferred Stock;

                   (ii) declare or pay dividends, or make any other
     distributions, on any shares of stock ranking on a parity (either as to
     dividends or upon liquidation, dissolution or winding up) with the Junior
     Preferred Stock, except dividends paid ratably on the Junior Preferred
     Stock and all such parity stock on which dividends are payable or in
     arrears in proportion to the total amounts to which the holders of all such
     shares are then entitled;

                   (iii) redeem or purchase or otherwise acquire for
     consideration shares of any stock ranking junior (either as to dividends or
     upon liquidation, dissolution or winding up) to the Junior Preferred Stock,
     provided that the Corporation may at any time redeem, purchase or otherwise
     acquire shares of any such junior stock in exchange for shares of any stock
     of the Corporation ranking junior (either as to dividends or upon
     dissolution, liquidation or winding up) to the Junior Preferred Stock; or

                   (iv) redeem or purchase or otherwise acquire for
     consideration any shares of Junior Preferred Stock, or any shares of stock
     ranking on a parity with the Junior Preferred Stock, except in accordance
     with a purchase offer made in writing or by publication (as determined by
     the Board of Directors) to all holders of such shares upon such terms as
     the Board of Directors, after consideration of the respective annual
     dividend rates and other relative rights and preferences of the respective
     series and classes, shall determine in good faith will result in fair and
     equitable treatment among the respective series or classes.

               (B) The Corporation shall not permit any subsidiary of the
     Corporation to purchase or otherwise acquire for consideration any shares
     of stock of the Corporation unless the Corporation could, under paragraph
     (A) of this Section 4, purchase or otherwise acquire such shares at such
     time and in such manner.

                                       4
<PAGE>
 
               SECTION 5.  REACQUIRED SHARES.  Any shares of Junior Preferred
     Stock purchased or otherwise acquired by the Corporation in any manner
     whatsoever shall be retired and cancelled promptly after the acquisition
     thereof.  All such shares shall upon their cancellation become authorized
     but unissued shares of Preferred Stock and may be reissued as part of a new
     series of Preferred Stock subject to the conditions and restrictions on
     issuance set forth herein, in the Restated Articles of Incorporation, or in
     any other Certificate of Determination of Preferences creating a series of
     Preferred Stock or any similar stock or as otherwise required by law.

               SECTION 6.  LIQUIDATION, DISSOLUTION OR WINDING UP.  Upon any
     liquidation, dissolution or winding up of the Corporation, no distribution
     shall be made (1) to the holders of shares of stock ranking junior (either
     as to dividends or upon liquidation, dissolution or winding up) to the
     Junior Preferred Stock unless, prior thereto, the holders of shares of
     Junior Preferred Stock shall have received the greater of: (A) $100 per
     share, plus an amount equal to accrued and unpaid dividends and
     distributions thereon, whether or not declared, to the date of such
     payment; or (B) an aggregate amount per share, subject to the provision for
     adjustment hereinafter set forth, equal to 100 times the aggregate amount
     to be distributed per share to holders of shares of Common Stock, or (2) to
     the holders of shares of stock ranking on a parity (either as to dividends
     or upon liquidation, dissolution or winding up) with the Junior Preferred
     Stock, except distributions made ratably on the Junior Preferred Stock and
     all such parity stock in proportion to the total amounts to which the
     holders of all such shares are entitled upon such liquidation, dissolution
     or winding up.  In the event the Corporation shall at any time declare or
     pay any dividend on the Common Stock payable in shares of Common Stock, or
     effect a subdivision or combination or consolidation of the outstanding
     shares of Common Stock (by reclassification or otherwise than by payment of
     a dividend in shares of Common Stock) into a greater or lesser number of
     shares of Common Stock, then in each such case the aggregate amount to
     which holders of shares of Junior Preferred Stock were entitled immediately
     prior to such event under the proviso in clause (1) of the preceding
     sentence shall be adjusted by multiplying such amount by a fraction the
     numerator of which is the number of shares of Common Stock outstanding
     immediately after such event and the denominator of which is the number of
     shares of Common Stock that were outstanding immediately prior to such
     event.

               SECTION 7.  CONSOLIDATION, MERGER, ETC.  In case the Corporation
     shall enter into any consolidation, merger, combination or other
     transaction in which the shares of Common Stock are exchanged for or
     changed into other stock or securities, cash and/or any other property,
     then in any such case each share of Junior Preferred Stock shall at the
     same time be similarly exchanged or changed into an amount per share,
     subject to the provision for adjustment hereinafter set forth, equal to 100
     times the aggregate amount of stock, securities, cash and/or any other
     property (payable in kind), as the case may be, into which or for which
     each share of Common Stock is changed or exchanged.  In the event the

                                       5
<PAGE>
 
     Corporation shall at any time declare or pay any dividend on the Common
     Stock payable in shares of Common Stock, or effect a subdivision or
     combination or consolidation of the outstanding shares of Common Stock (by
     reclassification or otherwise than by payment of a dividend in shares of
     Common Stock) into a greater or lesser number of shares of Common Stock,
     then in each such case the amount set forth in the preceding sentence with
     respect to the exchange or change of shares of Junior Preferred Stock shall
     be adjusted by multiplying such amount by a fraction, the numerator of
     which is the number of shares of Common Stock outstanding immediately after
     such event and the denominator of which is the number of shares of Common
     Stock that were outstanding immediately prior to such event.

               SECTION 8.  NO REDEMPTION.  The shares of Junior Preferred Stock
     shall not be redeemable.

               SECTION 9.  RANK.  The Junior Preferred Stock shall rank, with
     respect to the payment of dividends and the distribution of assets, junior
     to all other series of the Corporation's Preferred Stock.

               SECTION 10.  AMENDMENT.  The Restated Articles of Incorporation
     of the Corporation shall not be amended in any manner which would
     materially alter or change the powers, preferences or special rights of the
     Junior Preferred Stock so as to affect them adversely without the
     affirmative vote of the holders of at least two-thirds of the outstanding
     shares of Junior Preferred Stock, voting together as a single class.

     3.  The authorized number of shares of Preferred Stock of this corporation
is 4,000,000, and the number of shares of Preferred Stock constituting Series A
Junior Preferred Stock, none of which has been issued, is 250,000.

                                       6
<PAGE>
 
          IN WITNESS WHEREOF, the undersigned have executed this certificate on
     June __, 1998.


 
                                        _____________________________________
                                        MIHIR PARIKH
                                        CHIEF EXECUTIVE OFFICER
                                        
                                        
                                        
                                        _____________________________________
                                        JAMES C. KITCH
                                        SECRETARY

     The undersigned Mihir Parikh, Chairman and Chief Executive Officer of Asyst
Technologies, Inc. and James C. Kitch, Secretary of said corporation, each
certifies under penalty of perjury that the matters set forth in the foregoing
Certificate of Determination are true of their own knowledge.

          Executed at Fremont, California on June __, 1998.


 

                                          _____________________________________
                                          MIHIR PARIKH
                                          CHAIRMAN AND CHIEF EXECUTIVE OFFICER


          Executed at Fremont, California on June __, 1998.


 
                                           ____________________________________
                                           JAMES C. KITCH
                                           SECRETARY

                                       7
<PAGE>
 
                        (EXHIBIT B TO RIGHTS AGREEMENT)

                           FORM OF RIGHT CERTIFICATE

                                        


CERTIFICATE NO. R-                                                  _____ RIGHTS


     NOT EXERCISABLE AFTER _________________, 2008 OR EARLIER IF REDEMPTION OR
     EXCHANGE OCCURS. THE RIGHTS ARE SUBJECT TO REDEMPTION AT $.01 PER RIGHT AND
     TO EXCHANGE ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT.


                               RIGHT CERTIFICATE

                           ASYST TECHNOLOGIES, INC.


     This certifies that ___________________ or registered assigns, is the
registered owner of the number of Rights set forth above, each of which entitles
the owner thereof, subject to the terms, provisions and conditions of the Rights
Agreement, dated as of __________,____ (the "Rights Agreement"), between
__________, Inc. a California corporation (the "Company"), and BankBoston, N.A.
(the "Rights Agent"), to purchase from the Company at any time after the
Distribution Date (as such term is defined in the Rights Agreement) and prior to
5:00 p.m., New York Time, on ______, 2008 at the office of the Rights Agent
designated for such purpose, or at the office of its successor as Rights Agent,
one one-hundredth of a fully paid non-assessable share of Series A Junior
Participating Preferred Stock, no par value per share (the "Preferred Shares"),
of the Company, at a purchase price of $140 per one one-hundredth of a Preferred
Share (the "Purchase Price"), upon presentation and surrender of this Right
Certificate with the Form of Election to Purchase duly executed. The number of
Rights evidenced by this Right Certificate (and the number of one one-hundredths
of a Preferred Share which may be purchased upon exercise hereof) set forth
above, and the Purchase Price set forth above, are the number and Purchase Price
as of _______________, ____, based on the Preferred Shares as constituted at
such date.

     From and after the time any Person becomes an Acquiring Person, (as such
terms are defined in the Rights Agreement), if the Rights evidenced by this
Right Certificate are beneficially owned by (i) an Acquiring Person or an
Affiliate or Associate of any such Acquiring Person (as such terms are defined
in the Rights Agreement), (ii) a transferee of any such Acquiring Person,
Associate or Affiliate who becomes a transferee after the Acquiring Person
becomes such, or (iii) under certain circumstances specified in the Rights
Agreement, a transferee of any such Acquiring Person, Associate or Affiliate who
becomes a transferee prior 

                                      B-1
<PAGE>
 
to or concurrently with the Acquiring Person becoming such, such Rights shall
become null and void without any further action and no holder hereof shall have
any right with respect to such Rights from and after the time any Person becomes
an Acquiring Person.

     As provided in the Rights Agreement, the Purchase Price and the number of
one one-hundredths of a Preferred Share which may be purchased upon the exercise
of the Rights evidenced by this Right Certificate are subject to modification
and adjustment upon the happening of certain events.

     This Right Certificate is subject to all of the terms, provisions and
conditions of the Rights Agreement, as amended from time to time, which terms,
provisions and conditions are hereby incorporated herein by reference and made a
part hereof and to which Rights Agreement reference is hereby made for a full
description of the rights, limitations of rights, obligations, duties and
immunities hereunder of the Rights Agent, the Company and the holders of the
Right Certificates.  Copies of the Rights Agreement are on file at the principal
executive offices of the Company and the above-mentioned offices of the Rights
Agent.

     This Right Certificate, with or without other Right Certificates, upon
surrender at the office of the Rights Agent designated for such purpose, may be
exchanged for another Right Certificate or Right Certificates of like tenor and
date evidencing Rights entitling the holder to purchase a like aggregate number
of Preferred Shares as the Rights evidenced by the Right Certificate or Right
Certificates surrendered shall have entitled such holder to purchase.  If this
Right Certificate shall be exercised in part, the holder shall be entitled to
receive upon surrender hereof another Right Certificate or Right Certificates
for the number of whole Rights not exercised.

     Subject to the provisions of the Rights Agreement, the Rights evidenced by
this Certificate (i) may be redeemed by the Company at a redemption price of
$.01 per Right or (ii) may be exchanged in whole or in part for shares of the
Company's Common Stock, no par value per share, or, upon circumstances set forth
in the Rights Agreement, cash, property or other securities of the Company,
including fractions of a share of Preferred Stock.

     No fractional Preferred Shares will be issued upon the exercise of any
Right or Rights evidenced hereby (other than fractions which are integral
multiples of one one-hundredth of a Preferred Share, which may, at the election
of the Company, be evidenced by depositary receipts) but in lieu thereof a cash
payment will be made, as provided in the Rights Agreement.

     No holder of this Right Certificate shall be entitled to vote or receive
dividends or be deemed for any purpose the holder of the Preferred Shares or of
any other securities of the Company which may at any time be issuable on the
exercise hereof, nor shall anything contained in the Rights Agreement or herein
be construed to confer upon the holder hereof, as such, any of the rights of a
shareholder of the Company or any right to vote for the election of directors or
upon any matter submitted to shareholders at any meeting thereof, or to give or
withhold consent to any corporate action, or to receive notice of meetings or
other actions affecting shareholders (except as provided in the Rights
Agreement), or to receive dividends or subscription rights, or 

                                      B-2
<PAGE>
 
otherwise, until the Right or Rights evidenced by this Right Certificate shall
have been exercised as provided in the Rights Agreement.

     This Right Certificate shall not be valid or obligatory for any purpose
until it shall have been countersigned by the Rights Agent.

     WITNESS the facsimile signature of the proper officers of the Company and
its corporate seal.  Dated as of __________.


ATTEST:                                 ASYST TECHNOLOGIES, INC.



___________________________________     ____________________________________ 
James C. Kitch                          Mihir Parikh
Secretary                               Chairman and Chief Executive Officer



COUNTERSIGNED:


BankBoston, N.A.
as Rights Agent



By: _______________________________
    [Authorized Signature]

                                      B-3
<PAGE>
 
                   Form of Reverse Side of Right Certificate


                               FORM OF ASSIGNMENT


                (To be executed by the registered holder if such
               holder desires to transfer the Right Certificate.)


     FOR VALUE RECEIVED ______________________________________ hereby sells,
assigns and transfers unto

______________________________________________________________
                 (Please print name and address of transferee)

______________________________________________________________ this Right
Certificate, together with all right, title and interest therein, and does
hereby irrevocably constitute and appoint ________________________ Attorney, to
transfer the within Right Certificate on the books of the within-named Company,
with full power of substitution.


Dated:  ____________________



                                                ________________________________
                                                Signature


             Form of Reverse Side of Right Certificate -- continued

                                      B-4
<PAGE>
 
Signature Guaranteed:

     Signatures must be guaranteed by an "eligible guarantor institution" as
defined in Rule 17Ad-15 promulgated under the Securities Exchange Act of 1934,
as amended.

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

     The undersigned hereby certifies that (1) the Rights evidenced by this
Right Certificate are not being sold, assigned or transferred by or on behalf of
a Person who is or was an Acquiring Person, an Interested Shareholder or an
Affiliate or Associate thereof (as such terms are defined in the Rights
Agreement); and (2) after due inquiry and to the best of the knowledge of the
undersigned, the undersigned did not acquire the Rights evidenced by this Right
Certificate from any Person who is or was an Acquiring Person, an Interested
Shareholder, or an Affiliate or Associate thereof.


                                        ________________________________
                                        Signature


                                      B-5
<PAGE>
 
                          FORM OF ELECTION TO PURCHASE

                 (To be executed if holder desires to exercise
                 Rights represented by the Right Certificate.)


To __[Rights Agent]__

     The undersigned hereby irrevocably elects to exercise
___________________________ Rights represented by this Right Certificate to
purchase the Preferred Shares issuable upon the exercise of such Rights and
requests that certificates for such Preferred Shares be issued in the name of:

Please insert social security
or other identifying number: ______________


______________________________________________________________
                        (Please print name and address)

______________________________________________________________

If such number of Rights shall not be all the Rights evidenced by this Right
Certificate, a new Right Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number: ______________


______________________________________________________________
                        (Please print name and address)

______________________________________________________________


Dated:  _________________


                                        ________________________________
                                        Signature


             Form of Reverse Side of Right Certificate -- continued

                                      B-6
<PAGE>
 
Signature Guaranteed:

     Signatures must be guaranteed by an "eligible guarantor institution" as
defined in Rule 17Ad-15 promulgated under the Securities Exchange Act of 1934,
as amended.


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

     The undersigned hereby certifies that (1) the Rights evidenced by this
Right Certificate are not beneficially owned by nor are they being exercised on
behalf of an Acquiring Person, an Interested Shareholder or an Affiliate or
Associate thereof (as such terms are defined in the Rights Agreement); and (2)
after due inquiry and to the best of the knowledge of the undersigned, the
undersigned did not acquire the Rights evidenced by this Right Certificate from
any Person who is or was an Acquiring Person, an Interested Shareholder, or an
Affiliate or Associate thereof.


                                        ________________________________
                                        Signature

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

                                     NOTICE

     The signature in the Form of Assignment or Form of Election to Purchase, as
the case may be, must conform to the name as written upon the face of this Right
Certificate in every particular, without alteration or enlargement or any change
whatsoever.

     In the event the certification set forth above in the Form of Assignment or
the Form of Election to Purchase, as the case may be, is not completed, the
Company and the Rights Agent will deem the beneficial owner of the Rights
evidenced by this Right Certificate to be an Acquiring Person or an Affiliate or
Associate thereof (as defined in the Rights Agreement) and such Assignment or
Election to Purchase will not be honored.

                                      B-7
<PAGE>
 
                          (EXHIBIT C TO RIGHTS PLAN)

                            ASYST TECHNOLOGIES, INC.
                                        
                         SUMMARY OF RIGHTS TO PURCHASE
                                PREFERRED SHARES

                                        

     On __[Board Resolution Day and Month]__, __[Board Resolution Year]__, the
Board of Directors of ASYST TECHNOLOGIES, INC. (the "Company") declared a
dividend of one preferred share purchase right (a "Right") for each outstanding
share of common stock (the "Common Shares") of the Company.  The dividend is
effective as of June 25, 1998 (the "Record Date") with respect to the
shareholders of record on that date.   The Rights will also attach to new Common
Shares issued after the Record Date.  Each Right entitles the registered holder
to purchase from the Company one one-hundredth of a share of Series A Junior
Participating Preferred Stock (the "Preferred Shares") of the Company at a price
of $140 per one one-hundredth of a Preferred Share (the "Purchase Price"),
subject to adjustment.  Each Preferred Share is designed to be the economic
equivalent of 100 Common Shares.  The description and terms of the Rights are
set forth in a Rights Agreement dated as of __________, ____ (the "Rights
Agreement"), between the Company and BankBoston, N.A. (the "Rights Agent").

DETACHMENT AND TRANSFER OF RIGHTS

     Initially, the Rights will be evidenced by the stock certificates
representing Common Shares then outstanding, and no separate Right Certificates
will be distributed.  Until the earlier to occur of (i) a public announcement
that a person or group of affiliated or associated persons, has become an
"Acquiring Person" (as such term is defined in the Rights Agreement) or (ii) 10
business days (or such later date as the Board may determine) following the
commencement of, or announcement of an intention to make, a tender offer or
exchange offer which would result in the beneficial ownership by an Acquiring
Person of 15% or more of the outstanding Common Shares (the earlier of such
dates being called the "Distribution Date"), the Rights will be evidenced, with
respect to any of the Common Share certificates outstanding as of the Record
Date, by such Common Share certificate.  In general, an "Acquiring Person" is a
person, the affiliates or associates of such person, or a group, which has
acquired beneficial ownership of 15% or more of the outstanding Common Shares.

     The Rights Agreement provides that, until the Distribution Date (or earlier
redemption or expiration of the Rights), the Rights will be transferable with
and only with the Common Shares.  Until the Distribution Date (or earlier
redemption or expiration of the Rights), new Common Share certificates issued
after the Record Date upon transfer or new issuance of Common Shares will
contain a notation incorporating the Rights Agreement by reference.  Until the
Distribution Date (or earlier redemption or expiration of the Rights) the
surrender or transfer of any certificates for Common Shares outstanding as of
the Record Date, even without such notation or 

                                      C-1
<PAGE>
 
a copy of this Summary of Rights being attached thereto, will also constitute
the transfer of the Rights associated with the Common Shares represented by such
certificate. As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights ("Right Certificates") will be mailed to
holders of record of the Common Shares as of the close of business on the
Distribution Date and such separate Right Certificates alone will evidence the
Rights.

EXERCISABILITY OF RIGHTS

     The Rights are not exercisable until the Distribution Date.  The Rights
will expire on _______________, 2008 (the "Final Expiration Date"), unless the
Final Expiration Date is extended or unless the Rights are earlier redeemed or
exchanged by the Company, in each case as described below.  Until a Right is
exercised, the holder thereof, as such, will have no rights as a shareholder of
the Company, including, without limitation, the right to vote or to receive
dividends.

     The Purchase Price payable, and the number of Preferred Shares or other
securities or property issuable or payable, upon exercise of the Rights are
subject to adjustment from time to time to prevent dilution.  The number of
outstanding Rights and the number of one one-hundredths of a Preferred Share
issuable upon exercise of each Right are also subject to adjustment in the event
of a stock split of the Common Shares or a stock dividend on the Common Shares
payable in Common Shares, or subdivisions, consolidations or combinations of the
Common Shares occurring, in any such case, prior to the Distribution Date.  With
certain exceptions, no adjustment in the Purchase Price will be required until
cumulative adjustments require an adjustment of at least 1% in such Purchase
Price.  No fractional Preferred Shares will be issued (other than fractions
which are integral multiples of one one-hundredth of a Preferred Share, which
may, at the election of the Company, be evidenced by depositary receipts) and in
lieu thereof, an adjustment in cash will be made based on the market price of
the Preferred Shares on the last trading day prior to the date of exercise.

TERMS OF PREFERRED SHARES

     Preferred Shares purchasable upon exercise of the Rights will not be
redeemable.  Each Preferred Share will be entitled to a minimum preferential
quarterly dividend payment of $l per share but will be entitled to an aggregate
dividend of 100 times the dividend declared per Common Share.  In the event of
liquidation, the holders of the Preferred Shares will be entitled to a minimum
preferential liquidation payment of $100 per share but will be entitled to an
aggregate payment of 100 times the payment made per Common Share.  Each
Preferred Share will have 100 votes, voting together with the Common Shares.
Finally, in the event of any merger, consolidation or other transaction in which
Common Shares are exchanged, each Preferred Share will be entitled to receive
100 times the amount received per Common Share.  These rights are protected by
customary anti-dilution provisions.  Because of the nature of the Preferred
Shares' dividend, liquidation and voting rights, the value of the one one-
hundredth interest in a Preferred Share purchasable upon exercise of each Right
should approximate the value of one Common Share.  The Preferred Shares would
rank junior to any other series of the Company's preferred stock.

                                      C-2
<PAGE>
 
TRIGGER OF FLIP-IN AND FLIP-OVER RIGHTS

     In the event that any person or group of affiliated or associated persons
becomes an Acquiring Person, proper provision shall be made so that each holder
of a Right, other than Rights beneficially owned by the Acquiring Person or any
affiliate or associate thereof (which will thereafter be void), will thereafter
have the right to receive upon exercise that number of Common Shares having a
market value of two times the exercise price of the Right.  This right will
commence on the date of public announcement that a person has become an
Acquiring Person (or the effective date of a registration statement relating to
distribution of the rights, if later) and terminate 60 days later (subject to
adjustment in the event exercise of the rights is enjoined).

     In the event that the Company is acquired in a merger or other business
combination transaction or 50% or more of its consolidated assets or earning
power are sold to an Acquiring Person, its affiliates or associates or certain
other persons in which such persons have an interest, proper provision will be
made so that each such holder of a Right will thereafter have the right to
receive, upon the exercise thereof at the then current exercise price of the
Right, that number of shares of common stock of the acquiring company which at
the time of such transaction will have a market value of two times the exercise
price of the Right.

REDEMPTION AND EXCHANGE OF RIGHTS

     At any time prior to the earliest of (i) the close of business on the day
of the first public announcement that a person has become an Acquiring Person,
or (ii) the Final Expiration Date, the Board of Directors of the Company may
redeem the Rights in whole, but not in part, at a price of $.01 per Right (the
"Redemption Price").  In general, the redemption of the Rights may be made
effective at such time on such basis with such conditions as the Board of
Directors in its sole discretion may establish.  Immediately upon any redemption
of the Rights, the right to exercise the Rights will terminate and the only
right of the holders of Rights will be to receive the Redemption Price.

     At any time after any Person becomes an Acquiring Person and prior to the
acquisition by such person or group of 50% or more of the outstanding Common
Shares, the Board of Directors of the Company may exchange the Rights (other
than Rights owned by such person or group which will have become void), in whole
or in part, at an exchange ratio of one Common Share, or, under circumstances
set forth in the Rights Agreement, cash, property or other securities of the
Company, including fractions of a Preferred Share (or of a share of a class or
series of the Company's preferred stock having equivalent designations and the
powers, preferences and rights, and the qualifications, limitations and
restrictions), per Right (with value equal to such Common Shares).

                                      C-3
<PAGE>
 
AMENDMENT OF RIGHTS

     The terms of the Rights generally may be amended by the Board of Directors
of the Company without the consent of the holders of the Rights, except that
from and after such time as the Rights are distributed no such amendment may
adversely affect the interests of the holders of the Rights (excluding the
interest of any Acquiring Person).

ADDITIONAL INFORMATION

     A copy of the Rights Agreement has been filed with the Securities and
Exchange Commission as an Exhibit to a Current Report on Form 8-K dated
___________, ____.  A copy of the Rights Agreement is available from the Company
by writing to:  Douglas J. McCutcheon, Asyst Technologies, Inc., 48761 Kato
Road, Fremont, CA 94538.  This summary description of the Rights is not intended
to be complete and is qualified in its entirety by reference to the Rights
Agreement, which is hereby incorporated herein by reference.

                                      C-4


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