SEAMED CORP
8-A12G, 1998-02-04
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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<PAGE>   1

================================================================================




                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR 12(g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934



                               SEAMED CORPORATION
             (Exact name of registrant as specified in its charter)


                WASHINGTON                               91-1002092
(State of incorporation or organization)    (I.R.S. Employer Identification No.)


                           14500 NORTHEAST 87TH STREET
                         REDMOND, WASHINGTON 98052-3431
                                 (425) 867-1818
                    (Address of principal executive offices)


Securities to be registered pursuant to Section 12(b) of the Act:  None

Securities to be registered pursuant to Section 12(g) of the Act:

Title of each class to be so registered:  Preferred Stock Purchase Rights




================================================================================

<PAGE>   2


Item 1. Description of Registrant's Securities to be Registered

        On January 27, 1998, the Board of Directors of SeaMED Corporation (the
"Company") declared a dividend of one preferred share purchase right (a "Right")
for each outstanding share of common stock, no par value per share, of the
Company (the "Common Stock"). The dividend is payable on February 16, 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,
no par value per share, of the Company (the "Preferred Stock") at a price of
$110 per one one-hundredth of a share of Preferred Stock (the "Purchase Price"),
subject to adjustment. The description and terms of the Rights are set forth in
a Rights Agreement dated as of January 27, 1998, as the same may be amended from
time to time (the "Rights Agreement"), between the Company and ChaseMellon
Shareholder Services, L.L.C., as Rights Agent (the "Rights Agent").

        Until the earlier to occur of (i) 10 days following a public
announcement or awareness by the Board of Directors that a person or group of
affiliated or associated persons (an "Acquiring Person") have acquired
beneficial ownership of 15% or more of the outstanding shares of Common Stock,
other than pursuant to a Permitted Offer (as defined below) 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 group of affiliated persons
becomes an Acquiring Person) following the commencement of, or announcement of
an intention to make, a tender offer or exchange offer the consummation of which
would result in the beneficial ownership by a person or group of 15% or more of
the outstanding shares of Common Stock, other than pursuant to a Permitted Offer
(the earlier of such dates being called the "Distribution Date"), the Rights
will be evidenced, with respect to any of the Common Stock certificates
outstanding as of the Record Date, by such Common Stock certificate.
Notwithstanding the foregoing, R. Scott Asen, who owns more than 15% of the
outstanding shares of the Common Stock, will not be deemed an Acquiring Person
for any purposes of the Rights Agreement unless and until, after first falling
below a 15% ownership interest, he once again becomes the beneficial owner of
more than 15% of the outstanding shares of the Common Stock.

        A "Permitted Offer" is a tender offer or an exchange offer for all
outstanding shares of Common Stock of the Company at a price and on terms
determined by the Board of Directors of the Company, after receiving advice from
one or more investment banking firms, to be (i) fair to shareholders (taking
into account all factors which the Board of Directors deems relevant) and (ii)
otherwise in the best interests of the Company and its shareholders and which
the Board of Directors determines to recommend to the shareholders of the
Company.

        The Rights Agreement provides that, until the Distribution Date (or
earlier redemption or expiration of the Rights), the Rights will be transferred
with and only with the Common Stock. Until the Distribution Date (or earlier
redemption or expiration of the Rights), new Common Stock certificates issued
after the Record Date upon transfer or new issuances of Common Stock will
contain a notation incorporating the Rights Agreement by reference. Until the
Distribution Date (or earlier redemption or expiration of the Rights), the
surrender for transfer of any




                                      -2-
<PAGE>   3

certificates for shares of Common Stock outstanding as of the Record Date, will
also constitute the transfer of the Rights associated with the shares of Common
Stock 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 Stock as of the
close of business on the Distribution Date and such separate Right Certificates
alone will evidence the Rights.

        The Rights are not exercisable until the Distribution Date. The Rights
will expire on January 27, 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.

        The Purchase Price payable, and the number of shares of Preferred Stock
or other securities or property issuable, 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 Stock, (ii) upon the grant to holders of the Preferred Stock of
certain rights or warrants to subscribe for or purchase Preferred Stock at a
price, or securities convertible into Preferred Stock with a conversion price,
less than the then-current market price of the Preferred Stock or (iii) upon the
distribution to holders of the Preferred Stock of evidences of indebtedness or
assets (excluding regular periodic cash dividends or dividends payable in
Preferred Stock) or of subscription rights or warrants (other than those
referred to above). With certain exceptions, no adjustment in the Purchase Price
will be required until cumulative adjustments require an adjustment of at least
1% in the Purchase Price.

        No fraction of a share of Preferred Stock (other than fractions in
integral multiples of one one-hundredth of a share) will be issued and, in lieu
thereof, an adjustment in cash will be made based on the closing price on the
last trading date prior to the date of exercise.

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

        Shares of Preferred Stock purchasable upon exercise of the Rights will
not be redeemable. Each share of Preferred Stock will be entitled to a minimum
preferential quarterly dividend payment of $1.00 per share but will be entitled
to an aggregate dividend of 100 times the dividend declared per share of Common
Stock. In the event of liquidation, the holder of shares of Preferred Stock will
be entitled to a minimum preferential liquidation payment of $100.00 per share
but will entitled to an aggregate payment of 100 times the payment made per
share of Common Stock. Each share of Preferred Stock will have 100 votes, voting
together with the shares of Common Stock. Finally, in the event of any merger,
consolidation or other transaction in which shares of Common Stock are
exchanged, each share of Preferred Stock will be entitled to receive 100 times
the amount received per share of Common Stock. These rights are subject




                                      -3-
<PAGE>   4

to adjustment in the event of a stock dividend on the shares of Common Stock or
a subdivision, combination or consolidation of the shares of Common Stock.

        In the event that any person or group of affiliated or associated
persons becomes an Acquiring Person, each holder of a Right, other than Rights
beneficially owned by the Acquiring Person (which will thereupon become void),
will thereafter have the right to receive upon exercise of a Right at the then
current exercise price of the Right, that number of shares of Common Stock (or,
in lieu of Common Stock, such number or fraction of shares of Preferred Stock
equivalent in value of such number of shares of Common Stock) having a market
value of two times the exercise price of the Right.

        In the event that, after a person or group has become an Acquiring
Person, 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,
proper provision will be made so that each holder of a Right (other than Rights
beneficially owned by an Acquiring Person which will have become void) will
thereafter have the right to receive, upon the exercise of the Right at the then
current exercise price of the Right, that number of shares of common stock of
the person with whom the Company has engaged in the foregoing transaction which
number of shares at the time of such transaction will have a market value of two
times the exercise price of the Right.

        At any time after any person or group becomes an Acquiring Person and
prior to the acquisition by such person or group of 50% or more of the
outstanding shares of Common Stock or the occurrence of an event described in
the prior paragraph, 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 share of Common Stock
per Right (subject to adjustment).

        At any time prior to the close of business on the day 10 days after an
Acquiring Person becomes such, the Board of Directors of the Company may redeem
the Rights in whole, but not in part, at a price of $.0001 per Right (the
"Redemption Price"). The redemption of the Rights may be made effective at such
time, on such basis and 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.

        For so long as no person has become an Acquiring Person, the Company may
amend the Rights in any manner. After a person has become an Acquiring Person,
the Company may amend the Rights in any manner that does not adversely affect
the interests of holders of the Rights.

        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.

        This summary description of the Rights does not purport to be complete
and is qualified in its entirety by reference to the Rights Agreement, as the
same may be amended from time to time, which is hereby incorporated herein by
reference.




                                      -4-
<PAGE>   5

Item 2.   Exhibits.

        1.     Rights Agreement, dated as of January 27, 1998, between the
               Company and ChaseMellon Shareholder Services, L.L.C., which
               includes the form of Articles of Amendment as Exhibit A thereto,
               the form of Right Certificate as Exhibit B thereto and the form
               of Summary of Rights to Purchase Preferred Shares as Exhibit C
               thereto.

        
        2.+    Amended and Restated Articles of Incorporation of the Company.

        3.     Press Release dated January 27, 1998.          
  
+       Filed previously with the Company's Quarterly Report on Form 10-Q for
        the quarter ended October 2, 1997 filed with the Securities and Exchange
        Commission.








                                      -5-
<PAGE>   6

                                    SIGNATURE


        Pursuant to the requirements of Section 12 of the Securities Exchange
Act of 1934, the registrant has duly caused this registration statement to be
signed on its behalf by the undersigned, thereto duly authorized.



                                       SEAMED CORPORATION



                                       By  /s/ W. Robert Berg
                                           _______________ _____________________
                                           W. Robert Berg
                                           President and Chief Executive Officer

Dated: February 4, 1998
















                                      -6-
<PAGE>   7

                                  EXHIBIT INDEX


        <TABLE>
<CAPTION>
Exhibit No.           Description
- -----------           -----------
 <S>     <C>  <C>
        1.     Rights Agreement, dated as of January 27, 1998, between the
               Company and ChaseMellon Shareholder Services, L.L.C., which
               includes the form of Articles of Amendment as Exhibit A thereto,
               the form of Right Certificate as Exhibit B thereto and the form
               of Summary of Rights to Purchase Preferred Shares as Exhibit C
               thereto.

        2.+    Amended and Restated Articles of Incorporation of the Company.

        3.     Press Release dated January 27, 1998.  

+       Filed previously with the Company's Quarterly Report on Form 10-Q for
        the quarter ended October 2, 1997 filed with the Securities and Exchange
        Commission.
</TABLE>




                                      -7-

<PAGE>   1

                                RIGHTS AGREEMENT

                               SEAMED CORPORATION

                                       AND

                    CHASEMELLON SHAREHOLDER SERVICES, L.L.C.,

                                 AS RIGHTS AGENT


                          DATED AS OF JANUARY 27, 1998



<PAGE>   2

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                       Page
<S>               <C>                                                                                   <C>
Section 1.        Certain Definitions...................................................................1

Section 2.        Appointment of Rights Agent...........................................................4

Section 3.        Issue of Right Certificates...........................................................4

Section 4.        Form of Right Certificates............................................................6

Section 5.        Countersignature and Registration.....................................................6

Section 6.        Transfer, Split Up, Combination and Exchange of Right Certificates; Mutilated,
                  Destroyed, Lost or Stolen Right Certificates..........................................7

Section 7.        Exercise of Rights, Purchase Price; Expiration Date of Rights.........................7

Section 8.        Cancellation and Destruction of Right Certificates....................................8

Section 9.        Availability of Preferred Shares......................................................9

Section 10.       Preferred Shares Record Date.........................................................10

Section 11.       Adjustment of Purchase Price, Number of Shares and Number of Rights..................10

Section 12.       Certificate of Adjusted Purchase Price or Number of Shares...........................17

Section 13.       Consolidation, Merger or Sale or Transfer of Assets or Earnings Power................17

Section 14.       Fractional Rights and Fractional Shares..............................................20

Section 15.       Rights of Action.....................................................................21

Section 16.       Agreement of Right Holders...........................................................22

Section 17.       Right Certificate Holder Not Deemed a Shareholder....................................22

Section 18.       Concerning the Rights Agent..........................................................22

Section 19.       Merger or Consolidation or Change of Name of Rights Agent............................23

Section 20.       Duties of Rights Agent...............................................................24

Section 21.       Change of Rights Agent...............................................................25

Section 22.       Issuance of New Right Certificates...................................................26

Section 23.       Redemption...........................................................................27

Section 24.       Exchange.............................................................................27

Section 25.       Notice of Certain Events.............................................................28

Section 26.       Notices..............................................................................29

Section 27.       Supplements and Amendments...........................................................30

Section 28.       Successors...........................................................................30
</TABLE>


                                      -i-

<PAGE>   3

<TABLE>
<S>               <C>                                                                                  <C>
Section 29.       Benefits of this Agreement...........................................................30

Section 30.       Severability.........................................................................31

Section 31.       Governing Law........................................................................31

Section 32.       Counterparts.........................................................................31

Section 33.       Descriptive Headings.................................................................31

                                    EXHIBITS

Exhibit A         Form of Articles of Amendment
Exhibit B         Form of Right Certificate
Exhibit C         Form of Summary of Rights
</TABLE>



                                      -ii-

<PAGE>   4


                                RIGHTS AGREEMENT


         THIS RIGHTS AGREEMENT (the "AGREEMENT"), dated as of January 27, 1998,
between SeaMED Corporation, a Washington corporation (the "COMPANY"), and
ChaseMellon Shareholder Services, L.L.C., a New Jersey limited liability company
(the "RIGHTS AGENT").

                                    RECITALS

         The Board of Directors of the Company has authorized and declared a
dividend of one preferred share purchase right (a "RIGHT") for each share of
Common Stock (as hereinafter defined) of the Company outstanding as of the close
of business (as defined below) on February 16, 1998 (the "RECORD DATE"), each
Right representing the right to purchase one one-hundredth of a Preferred Share
(subject to adjustment), upon the terms and subject to the conditions herein set
forth, and has further authorized and directed the issuance of one Right
(subject to adjustment as provided herein) with respect to each share of Common
Stock that shall become outstanding between the Record Date and the earliest 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 shares of Common Stock that shall become outstanding
after the Distribution Date and prior to the Redemption Date and the Final
Expiration Date in accordance with Section 22.

                                    AGREEMENT

         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 meaning
indicated:

         "ACQUIRING PERSON" shall mean any Person who or which, together with
all Affiliates and Associates of such Person, shall be the Beneficial Owner of
the Threshold Percentage or more of the Common Stock then outstanding other than
as a result of a Permitted Offer, but shall not include any Exempt Person.
Notwithstanding the foregoing, no Person shall become an "ACQUIRING PERSON" as
the result of an acquisition of Common Stock by the Company which, by reducing
the number of shares outstanding, increases the proportionate number of shares
beneficially owned by such Person to the Threshold Percentage or more of the
Common Stock of the Company then outstanding; provided, however, that if a
Person shall become the Beneficial Owner of the Threshold Percentage or more of
the Common Stock of the Company then outstanding by reason of share purchases by
the Company and shall, after such share purchases by the Company, increase the
number of Common Stock of the Company beneficially owned by such Person above
the number of Common Stock of the Company beneficially owned by such Person at
the time of the last such share purchase by the Company, then such Person shall
be deemed to be an "ACQUIRING PERSON." Notwithstanding the foregoing, if the
Board of Directors of the 


                                      -1-

<PAGE>   5

Company determines in good faith that 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 a sufficient number of Common Stock 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.

         "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.

         A Person shall be deemed the "BENEFICIAL OWNER" of, shall be deemed to
have "BENEFICIAL OWNERSHIP" 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, directly or indirectly, 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 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, warrants or options, or otherwise; provided, however, that a
Person shall not be deemed the Beneficial Owner of, or to beneficially own, (1)
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, (2) securities which such Person
has a right to acquire on the exercise of Rights at any time prior to the time a
Person becomes an Acquiring Person, or (3) securities issuable upon exercise of
Rights from and after the time a Person becomes an Acquiring Person if such
Rights were acquired by such Person or any of such Person's Affiliates or
Associates prior to the Distribution Date or pursuant to Section 3(a) or Section
22 hereof ("ORIGINAL RIGHTS") or pursuant to Section 11(i) or Section 11(n) with
respect to an adjustment to original Rights; or (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 by reason of such agreement, arrangement or understanding if the
agreement, arrangement or understanding to vote such security 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 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 (whether or not in
writing) (other than customary agreements with and between underwriters and
selling group members with respect to a bona fide public offering 



                                      -2-
<PAGE>   6

of securities) for the purpose of acquiring, holding, voting (except to the
extent contemplated by the proviso to subparagraph (ii)(B) above) or disposing
of any securities of the Company.

         "BUSINESS DAY" shall mean any day other than a Saturday, a Sunday, or a
day on which banking or trust institutions in the State of Washington, or the
State in which the principal office of the Rights Agent is located, are
authorized or obligated by law or executive order to close.

         "CLOSE OF BUSINESS" on any given date shall mean 5:00 P.M., Seattle
time, on such date; provided, however, that if such date is not a Business Day
it shall mean 5:00 P.M., Seattle time, on the next succeeding Business Day.

         "COMMON STOCK" when used with reference to the Company shall mean the
common stock, no par value per share, of the Company. "Common Stock" when used
with reference to any Person other than the Company shall mean the capital stock
(or, in the case of an unincorporated entity, the equivalent 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.

         "DISTRIBUTION DATE" shall have the meaning set forth in Section 3
hereof.

         "EXEMPT PERSON" shall mean (i) the Company, (ii) any Subsidiary (as
such term is hereinafter defined) of the Company, (iii) any employee benefit
plan of the Company or of any Subsidiary of the Company, (iv) any entity or
trustee holding Common Stock for or pursuant to the terms of any such plan or
for the purpose of funding any such plan or funding other employee benefits for
employees of the Company or of any Subsidiary of the Company, and (v) until such
time as his Beneficial Ownership of the Company's Common Stock first falls below
the Threshold Percentage, R. Scott Asen.

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

         "NASDAQ STOCK MARKET" shall mean the stock market operated by The
Nasdaq Stock Market, Inc.

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

         "PERMITTED OFFER" shall mean a tender offer or an exchange offer for
all outstanding shares of Common Stock of the Company at a price and on terms
determined by the Board of Directors of the Company, after receiving advice from
one or more investment banking firms, to be (a) fair to shareholders (taking
into account all factors which the Board of Directors deems relevant) and (b)
otherwise in the best interests of the Company and its shareholders and which
the Board of Directors determines to recommend to the shareholders of the
Company.



                                      -3-
<PAGE>   7

         "PREFERRED SHARES" shall mean shares of a Series A Junior Participating
Preferred Stock, no par value per share, of the Company having the rights and
preferences set forth in the form of Articles of Amendment attached to this
Agreement as Exhibit A.

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

         "SECURITIES ACT" shall mean the Securities Act of 1933, as amended.

         "STOCK ACQUISITION DATE" shall mean the first date of public
announcement (which for purposes of this definition, shall include, without
limitation, a report filed pursuant to Section 13(d) of the Exchange Act) by the
Company or an Acquiring Person that an Acquiring Person has become such or such
earlier date as a majority of the Board of Directors shall become aware of the
existence of an Acquiring Person.

         "SUBSIDIARY" of any Person shall mean any corporation or other entity
of which securities or other ownership interests having ordinary voting power
sufficient to elect a majority of the board of directors or other persons
performing similar functions are beneficially owned, directly or indirectly, by
such Person, and any corporation or other entity that is otherwise controlled by
such Person.

         "THRESHOLD PERCENTAGE" shall mean 15%.

         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.

         SECTION 3.  ISSUE OF RIGHT CERTIFICATES.

         (a) Until the earlier of (i) the tenth day after the Stock 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 by any Person (other than
an Exempt Person) of, or of the first public announcement of the intention of
such Person (other than an Exempt Person) to commence, a tender or exchange
offer the consummation of which would result in any Person becoming, or after
the consummation of which any Person would be, 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"), (1) the Rights will be evidenced (subject to the
provisions of Section 3(b) hereof) by the certificates for Common Stock
registered in the names of the holders thereof and not by separate Right
Certificates, and (2) the Rights and the right to receive Right Certificates
will be transferable only in connection with the transfer of Common Stock. As
soon as practicable after the Distribution Date, the Company will promptly
notify the Rights Agent thereof, will prepare and execute, the Rights Agent will
countersign, and 



                                      -4-
<PAGE>   8

the Company will send or cause to be sent (and the Rights Agent, if requested
and provided with a shareholder list by the transfer agent of the Common Stock,
will send) by first-class, postage-prepaid mail, to each record holder of Common
Stock as of the close of business on the Distribution Date (other than any
Acquiring Person or any Associate or Affiliate of an Acquiring Person), 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 (subject to adjustment as provided herein) for each share
of Common Stock so held. 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 a copy of a Summary of Rights to Purchase Preferred Shares, in
substantially the form of Exhibit C hereto (the "SUMMARY OF RIGHTS"), by
first-class, postage-prepaid mail, to each record holder of Common Stock as of
the close of business on the Record Date (other than any Acquiring Person or any
Associate or Affiliate of any Acquiring Person), at the address of such holder
shown on the records of the Company. With respect to certificates for Common
Stock 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 or
the Final Expiration Date), the surrender for transfer of any certificate for
Common Stock outstanding on the Record Date, also shall constitute the transfer
of the Rights associated with the Common Stock represented thereby.

         (c) Certificates issued for Common Stock (including, without
limitation, upon transfer of outstanding Common Stock, disposition of Common
Stock out of treasury stock or issuance or reissuance of Common Stock out of
authorized but unissued shares) 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 SeaMED
         Corporation and ChaseMellon Shareholder Services, L.L.C., dated as of
         January 27, 1998, as the same may be 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 SeaMED Corporation. 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. SeaMED Corporation will mail to the holder of this
         certificate a copy of the Rights Agreement without charge after receipt
         of a written request therefor. Under certain circumstances, as set
         forth in the Rights Agreement, Rights owned by or issued or transferred
         to any Person who becomes an Acquiring Person or an Associate or
         Affiliate thereof (as defined in the Rights Agreement) and certain
         transferees thereof may become null and void.

With respect to such certificates containing the foregoing legend, until the
Distribution Date, the Rights associated with the Common Stock represented by
such certificates shall be evidenced by such certificates alone, and the
surrender for transfer of any such certificate, except as otherwise 



                                      -5-
<PAGE>   9

provided herein, shall also constitute the transfer of the Rights associated
with the Common Stock represented thereby. In the event that the Company
purchases or otherwise acquires any Common Stock after the Record Date but prior
to the Distribution Date, any Rights associated with such Common Stock shall be
deemed canceled and retired so that the Company shall not be entitled to
exercise any Rights associated with the Common Stock which are no longer
outstanding.

         Notwithstanding this paragraph (c), the omission of a legend shall not
affect the enforceability of any part of this Agreement or the rights of any
holder of the Rights.

         SECTION 4.  FORM OF RIGHT CERTIFICATES.

         The Right Certificates (and the forms of election to purchase shares
and of assignment to be printed on the reverse thereof) shall be substantially
in the form set forth in 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 which do not increase
the duties or responsibilities of the Rights Agent 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 the Nasdaq Stock Market or of any other stock exchange on
which the Rights may from time to time be listed, or to conform to usage.
Subject to the provisions of Sections 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.

         SECTION 5.  COUNTERSIGNATURE AND REGISTRATION.

         (a) The Right Certificates shall be executed on behalf of the Company
by its Chairman of the Board, its President, any of its Vice Presidents or its
Treasurer either manually or by facsimile signature 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.

         (b) Following the Distribution Date and receipt by the Rights Agent of
the list of record holders of the Rights, the Rights Agent will keep or cause to
be kept, at an office or 



                                      -6-
<PAGE>   10

agency 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.

         (a) Subject to the provisions of Sections 7(e), 11(a)(ii) and 14
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 or agency of the
Rights Agent designated for such purpose. Thereupon the Rights Agent shall
countersign and deliver to the Person entitled thereto a Right Certificate or
Right Certificates, as the case may be, as so requested. The 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. The Rights Agent shall have no duty or obligation under this
Section unless and until it is satisfied that all such taxes and/or charges have
been paid.

         (b) Subject to the provisions of Section 11(a)(ii) hereof, at any time
after the Distribution Date and prior to the close of business on the earlier of
the Redemption Date or the Final Expiration Date, 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 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 make
and deliver a new Right Certificate of like tenor to the Rights Agent for
delivery to the registered holder in lieu of the Right Certificate so lost,
stolen, destroyed or mutilated.

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

         (a) Except as otherwise provided herein, the Rights shall become
exercisable on the Distribution Date, and thereafter the registered holder of
any Right Certificate may, subject to Section 11(a)(ii) hereof and except as
otherwise provided herein, exercise the Rights evidenced thereby in whole or in
part 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 or agency of the Rights Agent designated for such purpose, together with
payment of the Purchase Price for each one one-hundredth of a Preferred Share as
to which the Rights are exercised, at any time 



                                      -7-
<PAGE>   11

which is both after the Distribution Date and prior to the earliest of (i) the
close of business on January 27, 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 for each one one-hundredth of a Preferred Share
purchasable pursuant to the exercise of a Right shall initially be $110, shall
be payable in lawful money of the United States of America in accordance with
paragraph (c) of this Section 7.

         (c) Except as otherwise provided herein, upon receipt of a Right
Certificate representing exercisable Rights, with the form of election to
purchase duly executed, accompanied by payment of the aggregate Purchase Price
for the Preferred Shares to be purchased and an amount equal to any applicable
tax or governmental charge required to be paid by the holder of such Right
Certificate in accordance with Section 9 hereof, in cash or by certified check,
cashier's check or money order payable to the order of the Company, the Rights
Agent shall thereupon promptly (i) requisition from (A) any transfer agent for
the Preferred Shares certificates for the number of shares of Preferred Shares
to be purchased and the Company hereby irrevocably authorizes its transfer agent
to comply with all such requests, or (B) the Company or the depositary agent, as
the case may be, scrip or depositary receipts representing interests in such
number of Preferred Shares 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) promptly after receipt of
such certificates, scrip 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 (iii)
when appropriate, after receipt, promptly deliver such cash to or upon the order
of the registered holder of such Right Certificate.

         (d) Except as otherwise provided herein, in case the registered holder
of any Right Certificate shall exercise less than all the Rights evidenced
thereby, a new Right Certificate evidencing Rights equivalent to the exercisable
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) 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 of Rights upon the occurrence of any purported
transfer or exercise of Rights pursuant to Section 6 hereof or this Section 7
unless such registered holder shall have (i) properly completed and signed the
certificate contained in the form of assignment or election to purchase set
forth on the reverse side of the Rights Certificate surrendered for such
transfer or exercise and (ii) provided such additional evidence of the identity
of the Beneficial Owner (or former Beneficial Owner) thereof as the Company or
Rights Agent shall reasonably request.



                                      -8-
<PAGE>   12

         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 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.

         (a) The Company covenants and agrees that it will cause to be reserved
and kept available out of its authorized and unissued Preferred Shares or any
Preferred Shares held in its treasury, the number of Preferred Shares (to the
extent available and subject to Section 11(a)(iii) herein) that will be
sufficient to permit the exercise in full of all outstanding Rights.

         (b) At such time, if any, as the Preferred Shares issuable upon the
exercise of Rights may be listed or admitted to trading on the Nasdaq Stock
Market or listed on any national securities exchange, the Company shall use its
best efforts to cause, from and after such time as the Rights become exercisable
(but only to the extent that the Board of Directors determines that it is
reasonably likely that the Rights will be exercised), all shares reserved for
such issuance to be listed or admitted to trading on the Nasdaq Stock Market or
listed on any other exchange upon official notice of issuance upon such
exercise.

         (c) The Company may prepare and file, as soon as practicable after the
Distribution Date, 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, and use its best efforts to
cause such registration statement to (i) become effective as soon as practicable
after such filing and (ii) remain effective (with a prospectus at all times
meeting the requirements of the Act) until the earlier of (A) the date as of
which the Rights are no longer exercisable for such securities or (B) the Final
Expiration Date. The Company will also take such action as may be appropriate
under, or to ensure compliance with, the securities or "blue sky" laws of the
various states in connection with the exercisability of the Rights. The Company
may temporarily suspend, for a period of time not to exceed 90 days, the
exercisability of the Rights in order to prepare and file a registration
statement under the Securities Act and permit it to become effective. Upon any
such suspension, the Company shall issue a public announcement stating that the
exercisability of the Rights has been temporarily suspended, as well as a public
announcement at such time as the suspension is no longer in effect. The Company
shall provide promptly a copy of all such announcements to the Rights Agent.
Notwithstanding any provision of this Agreement to the contrary, the Rights
shall not be exercisable in any jurisdiction unless the requisite 



                                      -9-
<PAGE>   13

qualification in such jurisdiction shall have been obtained and until a
registration statement under the Securities Act (if required) shall have been
declared effective.

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

         (e) The Company further covenants and agrees that it will pay when due
and payable any and all taxes and charges which may be payable in respect of the
issuance or delivery of the Right Certificates or of any Preferred Shares (or
other securities) upon the exercise of Rights. The Company shall not, however,
be required to pay any tax or charge 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 (or other securities) in a name other than that of, the registered holder
of the Right Certificate evidencing Rights surrendered for exercise or to issue
or deliver any certificates, scrip or depositary receipts for Preferred Shares
(or other securities) upon the exercise of any Rights until any such tax shall
have been paid (any such tax being payable by that holder of such Right
Certificate at the time of surrender) or until it has been established to the
Company's reasonable satisfaction that no such tax is due.

         SECTION 10.  PREFERRED SHARES RECORD DATE.

         Each Person in whose name any certificate for Preferred Shares is
issued upon the exercise of Rights shall for all purposes be deemed to have
become the holder of record of the Preferred Shares represented thereby on, and
such certificate shall be dated, the date upon which the Right Certificate
evidencing such Rights was duly surrendered and payment of the Purchase Price
(and any applicable taxes or charges) was made; provided, however, that if the
date of such surrender and payment is a date upon which the Preferred Share
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 Share transfer books of
the Company are open. Prior to the exercise of the Rights evidenced thereby, the
holder of a Right Certificate 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 or to receive dividends or other distributions,
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 AND NUMBER
OF RIGHTS.

         The Purchase Price, the number of Preferred Shares or other securities
or property purchasable upon exercise of each Right and the number of Rights
outstanding are subject to adjustment from time to time as provided in this
Section 11.



                                      -10-
<PAGE>   14

         (a) (i) In the event the Company shall at any time after the date of
this 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 Share transfer books of the Company were open, the holder would have
owned upon such exercise and been entitled to receive by virtue of such
dividend, subdivision, combination or reclassification. If an event occurs which
would require an adjustment under both Section 11(a)(i) and Section 11(a)(ii),
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).

                  (ii) Subject to Section 24 and except as otherwise provided in
this Section 11(a)(ii), in the event any Person becomes an Acquiring Person,
each holder of a Right shall thereafter have the 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 shares of Common Stock as shall equal 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
and dividing that product by (B) 50% of the then current per share market price
of the Company's Common Stock (determined pursuant to Section 11(d) hereof) on
the date of the occurrence of such event. Notwithstanding anything in this
Agreement to the contrary, however, from and after the time (the "INVALIDATION
TIME") when any Person first becomes an Acquiring Person, any Rights that are
beneficially owned by (C) any Acquiring Person (or any Affiliate or Associate of
any Acquiring Person), (D) a transferee of any Acquiring Person (or any such
Affiliate or Associate) who becomes a transferee after the invalidation time or
(E) a transferee of any Acquiring Person (or any such Affiliate or Associate)
who became a transferee prior to or concurrently with the invalidation time
pursuant to either (1) a transfer from the Acquiring Person to holders of its
equity securities or to any Person with whom it has any continuing agreement,
arrangement or understanding regarding the transferred Rights or (2) a transfer
which the Board of Directors has determined is part of a plan, arrangement or
understanding which has the purpose or effect of avoiding the provisions of this
paragraph, and subsequent transferees of such Persons, shall be null and void
without any further action and any holder of such Rights shall thereafter have
no rights whatsoever with respect to such Rights under any provision of this
Agreement. The Company shall use all reasonable efforts to ensure that the
provisions of this Section 11(a)(ii) are complied with, but neither the Company
nor the Rights Agent shall have any 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. From and after the invalidation time, no Right



                                      -11-
<PAGE>   15

Certificate shall be issued pursuant to Section 3 or Section 6 hereof that
represents Rights that are or have become null and void pursuant to the
provisions of this paragraph, and any Right Certificate delivered to the Rights
Agent that represents Rights that are or have become null and void pursuant to
the provisions of this paragraph (and of which the Rights Agent has been
notified) shall be canceled. From and after the occurrence of an event specified
in Section 13(a) hereof, any Rights that theretofore have not been exercised
pursuant to this Section 11(a)(ii) shall thereafter be exercisable only in
accordance with Section 13 and not pursuant to this Section 11(a)(ii).

                  (iii) In the event that there shall not be sufficient shares
of Common Stock issued but not outstanding or authorized but unissued to permit
the exercise in full of the Rights in accordance with the foregoing subparagraph
(ii) the Company shall take all such action as may be necessary to authorize
additional shares of Common Stock for issuance upon exercise of the Rights. In
the event the Company shall, after good faith effort, be unable to take all such
action as may be necessary to authorize such additional shares of Common Stock,
the Company shall substitute, for each share of Common Stock that would
otherwise be issuable upon exercise of a Right, a number of Preferred Shares or
fraction thereof such that the current per share market price of one Preferred
Share multiplied by such number or fraction is equal to the current per share
market price of one share of Common Stock as of the date of issuance of such
Preferred Shares or fraction thereof.

         (b) In case the Company shall fix a record date for the issuance of
rights (other than the 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 rights, privileges and preferences as the Common Stock ("PREFERRED SHARE
EQUIVALENTS")) or securities convertible into Preferred Shares or preferred
share equivalents at a price per Preferred Share or preferred share equivalent
(or having a conversion price per share, if a security convertible into
Preferred Shares or preferred share equivalents) less than the then current per
share market price of the Preferred Shares (determined pursuant to Section 11(d)
hereof) 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 and preferred share equivalents
outstanding on such record date plus the number of Preferred Shares and
preferred share equivalents which the aggregate offering price of the total
number of Preferred Shares and/or preferred share equivalents 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 and preferred share equivalents
outstanding on such record date plus the number of additional Preferred Shares
and/or preferred share equivalents to be offered for subscription or purchase
(or into which the convertible securities so to be offered are initially
convertible). 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 and shall be binding on the Rights Agent and the holders of the
Rights. Preferred Shares and preferred share equivalents owned by or held for
the account of the Company shall not be deemed outstanding for 




                                      -12-
<PAGE>   16

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 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
(determined pursuant to Section 11(d) hereof) 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
Preferred Share market price (determined pursuant to Section 11(d) hereof). 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) Except as otherwise provided herein, 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)) 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 but not including 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, and prior to the expiration of 30 Trading
Days after but not including 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 by the principal consolidated transaction reporting system with respect
to securities listed or admitted to trading on the Nasdaq Stock Market or, if
the Security is not listed or admitted to trading on the Nasdaq Stock Market, as
reported in the principal consolidated 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, if the Security is not listed or
admitted to trading on any national securities exchange, 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 



                                      -13-
<PAGE>   17

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. The term
"TRADING DAY" shall mean a day on which the Nasdaq Stock Market or 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 the Nasdaq Stock Market or any national
securities exchange, a Business Day. If the Common Stock is not publicly 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.

         For the purposes 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 this Section 11(d). 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 Stock
as determined pursuant to this Section 11(d) (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 Stock nor the
Preferred Shares are publicly held or so listed or traded, "current per share
market price" of the Preferred Shares 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-millionth of a
Preferred Share or one ten-thousandth of any share or other security as the case
may be. Notwithstanding the first sentence of this Section 11(e), any adjustment
required by this Section 11 shall be 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) or
Section 13(a) hereof, the holder of any Right thereafter exercised shall become
entitled to receive any shares of capital stock of the Company other than the
Preferred Shares, thereafter the number of such other shares so receivable upon
exercise of a 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 (c) and 11(h)
hereof, 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.



                                      -14-
<PAGE>   18

         (h) Unless the Company shall have exercised its election as provided in
Section 11(i), subject to the provisions of Sections 11(a) and 13, upon each
adjustment of the Purchase Price as a result of the calculations made in
Sections 11(b) and (c), 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 (A) the number of one one-hundredths of a share covered by a
Right immediately prior to such adjustment by (B) 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 (and promptly deliver a copy of such
announcement to the Rights Agent) of its election to adjust the number of
Rights, indicating the 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
may, 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 or other 



                                      -15-
<PAGE>   19

shares of capital stock 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 or other such 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 (and shall provide the Rights Agent with
notice of such election) 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 over and above 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) 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 or 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 Stock shall not be taxable to such
shareholders.

         (n) Anything in this Agreement to the contrary notwithstanding, 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 Stock payable in Common Stock or (ii) effect a subdivision, combination
or consolidation of the Common Stock (by reclassification or otherwise than by
payment of a dividend payable in Common Stock) into a greater or lesser number
of shares of Common Stock, then in any such case, (i) 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 shares of Common
Stock outstanding immediately before such event and the denominator of which is
the number of shares of Common Stock outstanding immediately after such event,
and (ii) each share of Common Stock outstanding immediately after such event
shall have issued with respect to it that number of Rights which each share of
Common Stock outstanding immediately prior to such event had issued with respect
to it. The adjustments provided for in this Section 11(n) shall be made
successively whenever such a dividend is declared or paid or such a subdivision,
combination or consolidation is effected. If an event occurs which would require
an adjustment under Section 11(a)(ii) and this Section 11(n), the adjustments
provided for in this Section 11(n) shall be in addition and prior to any
adjustment required pursuant to Section 11(a)(ii).



                                      -16-
<PAGE>   20

         (o) The Company agrees that, after the earlier of the Distribution Date
or the Stock Acquisition Date, it will not, except as permitted by Sections 23,
24 or 27 hereof, take (or permit any Subsidiary to take) any action if at the
time such action is taken it is reasonably foreseeable that such action will
diminish substantially or otherwise eliminate the benefits intended to be
afforded by the Rights, unless such action is approved by the Board of
Directors.

         SECTION 12. CERTIFICATE OF ADJUSTED PURCHASE PRICE OR NUMBER OF SHARES.

         Whenever an adjustment is made as provided in Section 11 or 13 hereof,
the Company shall promptly (a) prepare a certificate setting forth such
adjustment, and a brief statement of the facts and computation accounting for
such adjustment, (b) file with the Rights Agent and with each transfer agent for
the Common Stock 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 (if so required under Section 25 hereof). The Rights Agent
shall be fully protected in relying on any such certificate and on any
adjustment therein contained and shall neither have any duty with respect to nor
be deemed to have knowledge of any such adjustment unless and until it shall
have received such certificate.

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

         (a) In the event, directly or indirectly, at any time after any Person
has become an Acquiring Person, (i) the Company shall consolidate with, or merge
with and into any other Person and the Company shall not be the continuing or
surviving corporation of such consolidation or merger; (ii) any Person shall
consolidate with the Company, or any Person shall merge with and into the
Company and the Company shall be the continuing or surviving corporation of such
consolidation or merger and, in connection with such consolidation or merger,
all or part of the Common Stock shall be changed into or exchanged for stock or
other securities of any other Person (or of the Company) or cash or any other
property; (iii) the Company shall effect a statutory share exchange with the
outstanding shares of Common Stock of the Company being exchanged for stock or
other securities of any other Person, cash or property; or (iv) the Company
shall sell or otherwise transfer (or one or more of its Subsidiaries shall sell
or otherwise transfer), in one or more transactions, assets or earning power
aggregating 50% or more of the assets or earning power of the Company and its
Subsidiaries (taken as a whole) to any other Person (other than the Company or
one or more of its wholly owned Subsidiaries); or, if upon the consummation of
any of the events set forth in the preceding clauses (i) through (iv) there is
an Acquiring Person, then upon the first occurrence of any such event (a
"Section 13 Event"), proper provision shall be made so that: (1) each holder of
record of a Right (other than Rights which have become void pursuant to Section
11(a)(ii)) shall thereafter 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 validly issued, fully paid and non-assessable and freely tradable
shares of Common Stock of the Principal Party (as defined herein) not subject to
any liens, encumbrances, rights of first refusal 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 was 



                                      -17-
<PAGE>   21

exercisable immediately prior to the first occurrence of a Section 13 Event and
(B) dividing that product by 50% of the then current per share market price of
the Common Stock of such Principal Party (determined pursuant to Section 11(d)
hereof) on the date of consummation of such Section 13 Event; provided, however,
that the Purchase Price and the number of shares of Common Stock of such
Principal Party issuable upon exercise of each Right shall be further adjusted
as provided in Section 11(f) of this Agreement to reflect any events occurring
in respect of such Principal Party after the date of such Section 13 Event; (2)
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; (3) the term "COMPANY" shall
thereafter be deemed to refer to such Principal Party; and (4) such Principal
Party shall take such steps (including, but not limited to, the reservation of a
sufficient number of shares of its Common Stock in accordance with Section 9
hereof) in connection with such consummation of any such transaction as may be
necessary to assure that the provisions hereof shall thereafter be applicable,
as nearly as reasonably may be, in relation to the shares of its Common Stock
thereafter deliverable upon the exercise of the Rights; provided that, upon the
subsequent occurrence of any consolidation, merger, sale or transfer of assets
or other extraordinary transaction in respect of such Principal Party, each
holder of a Right shall thereupon be entitled to receive, upon exercise of a
Right and payment of the Purchase Price as provided in this Section 13(a), such
cash, shares, rights, warrants and other property which such holder would have
been entitled to receive had such holder, at the time of such transaction, owned
the Common Stock of the Principal Party receivable upon the exercise of a Right
pursuant to this Section 13(a), and such Principal Party shall take such steps
(including, but not limited to, reservation of shares of stock) as may be
necessary to permit the subsequent exercise of the Rights in accordance with the
terms hereof for such cash, shares, rights, warrants and other property.

         (b)      "PRINCIPAL PARTY" shall mean

                  (i) in the case of any transaction described in (i), (ii) or
(iii) of the first sentence of Section 13(a) hereof: (A) the Person that is the
issuer of the securities into which the shares of Common Stock of the Company
are converted in such merger, consolidation or exchange, or, if there is more
than one such issuer, the issuer the shares of Common Stock of which have the
greatest aggregate market value of shares outstanding, or (B) if no securities
are so issued, (1) the Person that is the other party to the merger, if such
Person survives said merger, or, if there is more than one such Person, the
Person the shares of Common Stock of which have the greatest aggregate market
value of shares outstanding or (2) if the Person that is the other party to the
merger does not survive the merger, the Person that does survive the merger
(including the Company if it survives) or (3) the Person resulting from the
consolidation; and

                  (ii) in the case of any transaction described in clause (iv)
of the first sentence in 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, or, if each Person that is a party
to such transaction or transactions receives the same portion of the assets or
earning power so transferred or if the Person receiving the greatest portion of
the assets or earning power cannot be determined, whichever of such Persons as
is the issuer of Common Stock having the greatest aggregate market value of
shares outstanding;

                                      -18-
<PAGE>   22

provided, however, that in any such case described in the foregoing clause
(b)(i) or (b)(ii), (1) if the Common Stock of such Person is not at such time or
has not been continuously over the preceding 12-month period registered under
Section 12 of the Exchange Act, and if such Person is a direct or indirect
Subsidiary of another Person the Common Stock of which is and has been so
registered, the term "Principal Party" shall refer to such other Person, or (2)
if such Person is a Subsidiary, directly or indirectly, of more than one Person,
the Common Stock of all of which is and has been so registered, the term
"Principal Party" shall refer to whichever of such Persons is the issuer of
Common Stock having the greatest aggregate market value, or (3) if such Person
is owned, directly or indirectly, by a joint venture formed by two or more
Persons that are not owned, directly or indirectly, by the same Person, the
rules set forth in clauses (1) and (2) above shall apply to each of the owners
having an interest in the venture as if the Person owned by the joint venture
was a Subsidiary of both or all of such joint venturers, and the Principal Party
in each such case shall bear the obligations set forth in this Section 13 in the
same ratio as its interest in such Person bears to the total of such interests.

         (c) The Company shall not consummate any Section 13 Event unless prior
thereto the Company and the Principal Party involved therein shall have executed
and delivered to the Rights Agent an agreement confirming that the requirements
of Sections 13(a) and (b) hereof shall promptly be performed in accordance with
their terms and that such consolidation, merger, exchange, sale or transfer of
assets shall not result in a default by the Principal Party under this Agreement
as the same shall have been assumed by the Principal Party pursuant to Sections
13(a) and (b) hereof and providing that, as soon as practicable after executing
such agreement pursuant to this Section 13, the Principal Party will:

                  (i) prepare and file a registration statement under the
Securities Act, if necessary, with respect to the Rights and the securities
purchasable upon exercise of the Rights on an appropriate form, use its best
efforts to cause such registration statement to become effective as soon as
practicable after such filing and use its best efforts to cause such
registration statement to remain effective (with a prospectus at all times
meeting the requirements of the Securities Act) until the earlier of the close
of business on the Redemption Date or the Final Expiration Date, and similarly
comply with applicable state securities laws;

                  (ii) use its best efforts, if the Common Stock of the
Principal Party shall be listed or admitted to trading on the Nasdaq Stock
Market or on a national securities exchange, to list or admit to trading (or
continue the listing of) the Rights and the securities purchasable upon exercise
of the Rights on the Nasdaq Stock Market or such securities exchange or, if the
Common Stock of the Principal Party shall not be listed or admitted to trading
on the Nasdaq Stock Market or a national securities exchange, to cause the
Rights and the securities receivable upon exercise of the Rights to be reported
by such other system then in use;

                  (iii) deliver to holders of the Rights historical financial
statements for the Principal Party which comply in all respects with the
requirements for registration on Form 10 (or any successor form) under the
Exchange Act; and



                                      -19-
<PAGE>   23

                  (iv) obtain waivers of any rights of first refusal or
preemptive rights in respect of the Common Stock of the Principal Party subject
to purchase upon exercise of outstanding Rights.

         (d) In case the Principal Party which is to be a party to a transaction
referred to in this Section 13 has a provision in any of its authorized
securities or in its articles or certificate of incorporation or by-laws or
other instrument governing its corporate affairs, which provision would have the
effect of (i) causing such Principal Party to issue (other than to holders of
Rights pursuant to this Section 13), in connection with, or as a consequence of,
the consummation of a transaction referred to in this Section 13, shares of
Common Stock of such Principal Party at less than the then current market price
per share thereof (determined pursuant to Section 11(d) hereof) or securities
exercisable for, or convertible into, Common Stock of such Principal Party at
less than such then current market price, or (ii) providing for any special
payment, tax or similar provision in connection with the issuance of the Common
Stock of such Principal Party pursuant to the provisions of Section 13, then, in
such event, the Company hereby agrees with each holder of Rights that it shall
not consummate any such transaction unless prior thereto the Company and such
Principal Party shall have executed and delivered to the Rights Agent a
supplemental agreement providing that the provision in question of such
Principal Party shall have been canceled, waived or amended, or that the
authorized securities shall be redeemed, so that the applicable provision will
have no effect in connection with, or as a consequence of, the consummation of
the proposed transaction.

         (e) The Company covenants and agrees that it shall not, at any time
after a Person first becomes an Acquiring Person, enter into any transaction of
the type contemplated by clauses (i) - (iv) of Section 13(a) hereof if (i) at
the time of or immediately after such consolidation, merger, exchange, sale,
transfer or other transaction there are any rights, warrants or other
instruments or securities outstanding or agreements in effect which would
substantially diminish or otherwise eliminate the benefits intended to be
afforded by the Rights, (ii) prior to, simultaneously with or immediately after
such consolidation, merger, sale, transfer of other transaction, 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 or Associates or
(iii) the form or nature of organization of the Principal Party would preclude
or limit the exercisability of the Rights.

         (f) The provisions of this Section 13 shall similarly apply to
successive mergers, consolidations, statutory share exchanges or sale or other
transfers.

         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 




                                      -20-
<PAGE>   24

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 Nasdaq Stock Market or, if the Rights are not listed or admitted
to trading on the Nasdaq Stock Market, 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, if the Rights are not listed or admitted to trading on any national
securities exchange, 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
pursuant to an appropriate agreement between the Company and a depositary
selected by it, or by scrip; provided, however, that (i) if the Company issues
such scrip, then such scrip shall not confer upon the holder any voting or other
rights of a shareholder of the Company, but the Company shall from time to time,
upon demand of any holder of such scrip and the surrender of scrip for
fractional Preferred Shares aggregating one whole Preferred Share, issue one
whole Preferred Share to such holder and (ii) if the Company issues depositary
receipts pursuant to any such agreement, such agreement shall provide that the
holders of such depositary receipts shall have all 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 14(b), the current market value of a Preferred Share
shall be the closing price of a Preferred Share (as determined pursuant to
Section 11(d)) for the Trading Day immediately prior to the date of such
exercise.

         (c) 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).



                                      -21-
<PAGE>   25

         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 Section 18 hereof, are vested in the
respective registered holders of the Right Certificates (and, prior to the
Distribution Date, the registered holders of the Common Stock); and any
registered holder of any Right Certificate (or, prior to the Distribution Date,
of the Common Stock), 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 Stock), on his own behalf and for his own benefit, may 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 therein 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.

         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 Stock;

         (b) after the Distribution Date, the Right Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the office or agency of the Rights Agent designated for such purpose, duly
endorsed or accompanied by a proper instrument of transfer; and

         (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 Common
Stock 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 Common Stock 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 



                                      -22-
<PAGE>   26

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 this Agreement), or to receive dividends or subscription rights, or
otherwise, until the Rights evidenced by such Right Certificate shall have been
exercised in accordance with the provisions hereof.

         SECTION 18.  CONCERNING THE RIGHTS AGENT.

         (a) The Company agrees to pay in a timely manner 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 preparation, delivery, administration,
execution and any amendment of this Agreement and the exercise and performance
of its duties hereunder, which shall include, but not be limited to, reasonable
compensation for services rendered by officers and employees of the Rights Agent
which are in addition to the ministerial and administrative services performed
by the Rights Agent under this Agreement. The Company also agrees to indemnify
the Rights Agent, its officers, employees, agents and directors for, and to hold
them harmless against, any loss, liability, damage, judgment, fine, penalty,
claim, demand, settlement, cost or expense incurred without gross negligence,
bad faith or willful misconduct on the part of the Rights Agent, for any action
taken, suffered or omitted by the Rights Agent in connection with the acceptance
and administration of this Agreement, including without limitation the costs and
expenses of defending against any claim of liability arising therefrom, directly
or indirectly against the Rights Agent, its officers, employees, agents and
directors. Anything to the contrary notwithstanding, in no event shall the
Rights Agent be liable for special, indirect, consequential or incidental loss
or damage of any kind whatsoever (including but not limited to lost profits),
even if the Rights Agent has been advised of the likelihood of such loss or
damage.

         (b) The Rights Agent shall be authorized and protected by the Company
and shall incur no liability for, or in respect of any action taken, suffered or
omitted by it in connection with, its acceptance and administration of this
Agreement in reliance upon any Right Certificate or certificate for the
Preferred Shares (or for scrip or depositary receipts evidencing fractional
interests in Preferred Shares) or Common Stock 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. The
Rights Agent shall not be deemed to have notice of any action or event unless
such notice was given as provided above.

         SECTION 19.  MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS AGENT.

         (a) Any Person into which the Rights Agent or any successor Rights
Agent may be merged or with which it may be consolidated, or any Person
resulting from any merger or consolidation to which the Rights Agent or any
successor Rights Agent shall be a party, or any Person succeeding to the stock
transfer or corporate trust powers of the Rights Agent or any successor Rights
Agent, shall be the successor to the Rights Agent under this Agreement without


                                      -23-
<PAGE>   27

the execution or filing of any paper or any further act on the part of any of
the parties hereto; provided, that such Person 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.

         (b) 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 only the duties and obligations expressly
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 advice or opinion of such counsel
shall be full and complete authorization and protection to the Rights Agent and
the Rights Agent shall incur no liability for or in respect of any action taken,
suffered or omitted by it in good faith and in accordance with such advice or
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
(including without limitation the identity of any Acquiring Person and the
determination of current market price) be proved or established by the Company
prior to taking, suffering or omitting any 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 President, any Vice President, the
Treasurer or the Secretary of the Company and delivered to the Rights Agent; and
such certificate shall be full authorization and protection to the Rights Agent
and the Rights Agent shall incur no liability for or in respect of any action
taken, suffered or omitted 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.



                                      -24-
<PAGE>   28

         (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 have any liability for, nor 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 transfer to an Acquiring Person
(unless the Company has delivered written notice of such Acquiring Person prior
to such transfer) or any change in the exercisability of the Rights (including
the Rights becoming null and 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 and 24, 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 furnished pursuant to Section 12, 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 shares
of Preferred Shares or other securities to be issued pursuant to this Agreement
or any Right Certificate or as to whether any Preferred Shares or other
securities 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
person reasonably believed by the Rights Agent to be one of the Chairman of the
Board, the President, 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, suffered or
omitted by it in good faith in accordance with instructions of any such officer
or for any delay in acting while waiting for those instructions.

         (h) The Rights Agent and any shareholder, affiliate, 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 Person
or legal entity.



                                      -25-
<PAGE>   29

         (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 or any other Person resulting from any
such act, default, neglect or misconduct absent gross negligence, bad faith or
willful misconduct.

         (j) If, with respect to any Rights Certificate surrendered to the
Rights Agent for exercise or transfer, the certificate contained in the form of
assignment or the form of election to purchase set forth on the reverse thereof,
as the case may be, has not been completed to certify the holder is not an
Acquiring Person (or an Affiliate or Associate thereof), 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 of the Common Stock and
Preferred Shares by registered or certified mail, and, following the
Distribution Date, to the holders of the Right Certificates by United States
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 of the Common Stock by
registered or certified mail, and following the Distribution Date, to the
holders of the Right Certificates by United States 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 or other entity organized and
doing business under the laws of the United States or the State of Washington or
New York (or of any other state of the United States so long as such corporation
is authorized to do business in the State of Washington or New York), in good
standing, having an office or depositary drop in the State of Washington or New
York, which is authorized to exercise corporate trust or stock transfer powers
and is subject to supervision or examination by federal or state authority and
which has or is a subsidiary of a corporation which has at the time of its
appointment as Rights Agent a combined capital and surplus of at least $50
million, or (b) an Affiliate of a corporation or other entity described in
clause (a) of this sentence. 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 



                                      -26-
<PAGE>   30

appointment the Company shall file notice thereof in writing with the
predecessor Rights Agent and each transfer agent of the Common Stock and
Preferred Shares, and, following the Distribution Date, 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.

         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 forms 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 Stock
following the Distribution Date and prior to the earlier of the Redemption Date
and the Final Expiration Date, the Company may with respect to shares of Common
Stock so issued or sold pursuant to (i) the exercise of stock options, (ii)
under any employee plan or arrangement, (iii) upon the exercise, conversion or
exchange of securities notes or debentures issued by the Company or (iv) a
contractual obligation of the Company in each case existing prior to the
Distribution Date, issue Rights Certificates representing the appropriate number
of Rights in connection with such issuance or sale.

         SECTION 23.  REDEMPTION.

         (a) The Board of Directors of the Company may, at any time prior to the
earlier of (i) the close of business on the tenth day following the Stock
Acquisition Date, subject to extension by the Board of Directors as provided in
Section 27 hereof, or (ii) the close of business on the Final Expiration Date,
redeem all but not less than all the then outstanding Rights at a redemption
price of $0.0001 per Right, appropriately adjusted to reflect any stock split,
stock dividend or similar transaction occurring after the date hereof (the
redemption price being hereinafter referred to as the "REDEMPTION PRICE"). The
redemption of the Rights may be made effective at such time, on such basis and
with such conditions as the Board of Directors in its sole discretion may
establish. The Company may, at its option, pay the Redemption Price in cash,
shares of Common Stock (based on the current market price of the Common Stock at
the time of redemption) or any other form of consideration deemed appropriate by
the Board of Directors.

         (b) Immediately upon the action of the Board of Directors ordering the
redemption of the Rights pursuant to paragraph (a) of this Section 23 (or at
such later time as the Board of Directors may establish for the effectiveness of
such redemption), 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 (including prompt notice thereof to the Rights
Agent) 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 (or such later time as the Board of Directors may
establish for the 



                                      -27-
<PAGE>   31

effectiveness of such redemption), 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
Stock. 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 shall state the method by which the payment of the Redemption Price
will be made.

         SECTION 24.  EXCHANGE.

         (a) The Board of Directors of the Company may, at its option, at any
time after any Person first becomes an Acquiring Person, exchange all or part of
the then outstanding and exercisable Rights (which shall not include Rights that
have become null and void pursuant to the provisions of Section 11(a)(ii)
hereof) for shares of Common Stock at an exchange ratio of one share of Common
Stock per Right, appropriately adjusted to reflect any stock split, stock
dividend or similar transaction occurring after the date hereof and subject to
adjustment as set forth in clause (c) below (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 an Exempt Person), together with all
Affiliates and Associates of such Person, becomes the Beneficial Owner of shares
of Common Stock aggregating 50% or more of the shares of Common Stock then
outstanding.

         (b) Immediately upon the action of the Board of Directors of the
Company ordering the exchange of any Rights pursuant to paragraph (a) of this
Section 24 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 shares of Common Stock 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 (and
prompt notice thereof to the Rights Agent); provided, however, that the failure
to give, or any defect in, such notice shall not affect the validity of such
exchange. The Company shall promptly mail a notice of any such exchange to the
Rights Agent and to all of the holders of such Rights at their last addresses as
they appear upon the registry books of the Rights Agent. 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 shares of Common Stock for Rights will be effected
and, in the event of any partial 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 the event that there shall not be sufficient shares of Common
Stock issued but not outstanding or authorized but unissued to permit any
exchange of Rights as contemplated in accordance with this Section 24, the
Company may, in its discretion, take such action as may be necessary to
authorize additional shares of Common Stock for issuance upon exchange of the
Rights. In the event that the Company shall determine not to take such action or
shall, after good faith effort, be unable to take such action as may be
necessary to authorize such additional shares of Common Stock, the Board of
Directors, at its option shall (i) adjust the Exchange Ratio to 



                                      -28-
<PAGE>   32

permit the Company to use all of its issued but not outstanding and its
authorized but unissued Common Stock to effectuate a full exchange of all of the
then outstanding and exercisable Rights or (ii) substitute, for each Common
Share that would otherwise be issuable upon exchange of a Right, a number of
Preferred Shares or fraction thereof such that the current per share market
price of one Preferred Share multiplied by such number or fraction is equal to
the current per share market price of one Common Share as of the date of
issuance of such Preferred Shares or fraction thereof.

         (d) The Company shall not, in connection with any exchange pursuant to
this Section 24, be required to issue fractions of shares of Common Stock or to
distribute certificates which evidence fractional shares of Common Stock. In
lieu of such fractional shares of Common Stock, there shall be paid to the
registered holders of the Right Certificates with regard to which such
fractional shares of Common Stock 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 paragraph (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)) for the Trading Day
immediately prior to the date of exchange pursuant to this Section 24.

         SECTION 25.  NOTICE OF CERTAIN EVENTS.

         (a) In case the Company shall at any time after the earlier of the
Distribution Date or the Stock Acquisition Date 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) or (iv) to effect any consolidation or merger into or with, or to effect
any sale or other transfer (or 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 any statutory share exchange with the
outstanding Common Stock of the Company being exchanged for stock or other
securities of any other corporation or cash or other property, (vi) to effect
the liquidation, dissolution or winding up of the Company or (vii) to declare or
pay any dividend on the Common Stock payable in Common Stock or to effect a
subdivision, combination or consolidation of the Common Stock (by
reclassification or otherwise than by payment of dividends in Common Stock),
then, in each such case, the Company shall give to the Rights Agent and 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 purposes of
such stock dividend, or distribution of rights or warrants, or the date on which
such liquidation, dissolution or winding up is to take place and the date of
participation therein by the holders of the Common Stock and/or 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



                                      -29-
<PAGE>   33

days prior to the date of the taking of such proposed action or the date of
participation therein by the holders of the Common Stock and/or Preferred
Shares, whichever shall be the earlier.

         (b) In case any event described in Section 11(a)(ii) or Section 13
shall occur then the Company shall as soon as practicable thereafter give to
each holder of a Right Certificate (or if occurring prior to the Distribution
Date, the holders of the Common Stock) in accordance with Section 26 hereof, a
notice of the occurrence of such event, which notice shall describe such event
and the consequences of such event to holders of Rights under Section 11(a)(ii)
and Section 13 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:

                           SeaMED Corporation
                           14500 NE 87th Street
                           Redmond, WA  98052-3431
                           Attention:  Chief Financial Officer

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:

                           ChaseMellon Shareholder Services, L.L.C.
                           Seattle Administration
                           520 Pike Street, Suite 1220
                           Seattle, WA  98101

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 United States mail, postage prepaid,
addressed to such holder at the address of such holder as shown on the registry
books of the Company.

         SECTION 27.  SUPPLEMENTS AND AMENDMENTS.

         The Company may from time to time supplement or amend this Agreement
without the approval of the Rights Agent or any holders of Right Certificates in
order (i) to extend the Final Expiration Date or, provided that at the time of
such amendment no Person has become an Acquiring Person, the period during which
the Rights may be redeemed, (ii) to cure any ambiguity, to correct or supplement
any provision contained herein which may be defective or inconsistent with any
other provisions of this Agreement, (iii) prior to the time that any Person




                                      -30-
<PAGE>   34

becomes an Acquiring Person, to otherwise change or supplement any provision in
this Agreement in any manner which the Company may deem necessary or desirable,
or (iv) subject to clause (i) of this Section 27, from and after the time that
any Person become an Acquiring Person, to otherwise change or supplement any
provision in this Agreement in any manner which the Company may deem necessary
or desirable and which shall not adversely affect the interests of the Rights
Agent or holders of Rights Certificates (other than an Acquiring Person or an
Affiliate or Associate of an Acquiring Person). Upon the delivery of a
certificate from an appropriate officer of the Company and, if requested by the
Rights Agent, an opinion of counsel, 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.

         SECTION 28.  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 29.  BENEFITS OF THIS AGREEMENT.

         Nothing in this Agreement shall be construed to give to any Person
other than the Company, the Rights Agent and the registered holders of the Right
Certificates (and, prior to the Distribution Date, the Common Stock) 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 Stock).

         SECTION 30.  SEVERABILITY.

         If any term, provision, covenant or restriction of this Agreement or
applicable to 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 31.  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 Washington 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; provided, however, that the effect of any provision on the rights, duties
and obligations of the Rights Agent shall be governed by and construed in
accordance with the laws of the State of New York applicable to contracts to be
made and performed entirely within such State.



                                      -31-
<PAGE>   35

         SECTION 32.  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 33.  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.


              [the remainder of this page intentionally left blank]



                                      -32-
<PAGE>   36

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and attested, all as of the day and year first above written.

                                            SeaMED CORPORATION


                                            By    /s/ W. Robert Berg
                                               ---------------------------------
                                            Name:     W. Robert Berg
                                                 -------------------------------
                                            Title:    President
                                                  ------------------------------

                                            CHASEMELLON SHAREHOLDER 
                                            SERVICES, L.L.C.


                                            By    /s/ Pauline F. Skudler
                                               ---------------------------------
                                            Name:     Pauline F. Skudler
                                                 -------------------------------
                                            Title:    Assistant Vice President
                                                  ------------------------------



                                      -33-
<PAGE>   37
                                    EXHIBIT A

           FORM OF ARTICLES OF AMENDMENT OF ARTICLES OF INCORPORATION

                              ARTICLES OF AMENDMENT
                                       OF
                              AMENDED AND RESTATED
                            ARTICLES OF INCORPORATION
                                       OF
                               SEAMED CORPORATION

        Articles of Amendment of Amended and Restated Articles of Incorporation
of SeaMED Corporation (the "Corporation"), are herein executed by said
Corporation, pursuant to the provisions of RCW 23B.10.060, as follows:

        FIRST:  The name of the Corporation is SeaMED Corporation.

        SECOND: Article V of the Amended and Restated Articles of Incorporation
is amended to add a new section 5.__, as follows:

        5._.   SERIES A JUNIOR PARTICIPATING PREFERRED STOCK.

        Out of the five million (5,000,000) shares of Preferred Stock, no par
value per share, authorized under Section 5.2, a series of preferred stock of
the Corporation is created, and the designation and amount thereof and the
relative rights and preferences of the shares of such series, are as follows:

               5._.1. DESIGNATION AND AMOUNT.

        The shares of such series shall be designated as "Series A Junior
Participating Preferred Stock" (the "PREFERRED SHARES") and the number of shares
constituting the Preferred Shares shall be [600,000]. Such number of shares may
be increased or decreased by resolution of the Board of Directors and any
necessary shareholder approval; provided, however, that no decrease shall reduce
the number of shares of Preferred Shares 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 Preferred
Shares.

               5._.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
Preferred Shares with respect to dividends, the holders of Preferred Shares, in
preference to the holders of Common Stock, 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



                                      A-1
<PAGE>   38

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 Preferred Shares, in an amount per share (rounded to the nearest
cent) equal to the greater of (i) $1.00 or (ii) 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 Preferred Shares. In the event the Corporation
shall at any time after __________, 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) into a greater or lesser number of shares of Common Stock, then in
each such case the amount to which holders of shares of Preferred Shares were
entitled immediately prior to such event under clause (ii) 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
Preferred Shares 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 or a subdivision of the outstanding
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 subsequent Quarterly Dividend Payment Date, a
dividend of $1.00 per share on the Preferred Shares shall nevertheless be
payable, out of funds legally available for such purpose, on such subsequent
Quarterly Dividend Payment Date.

        (c)    Dividends shall begin to accrue and be cumulative on outstanding
shares of Preferred Shares from their date of issue. Accrued but unpaid
dividends shall not bear interest. Dividends paid on the shares of Preferred
Shares 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 Preferred
Shares 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.

               5._.3. VOTING RIGHTS.

        (a)    Subject to the provision for adjustment hereinafter set forth,
each Preferred Share 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 after __________, 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



                                      A-2
<PAGE>   39

reclassification or otherwise) 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 Preferred Shares 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 or by law, the holders of
Preferred Shares and the holders 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.

        (c)    Except as set forth herein or required by law, holders of
Preferred Shares 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.

               5._.4. CERTAIN RESTRICTIONS.

        (a)    Whenever quarterly dividends or other dividends or distributions
payable on the Preferred Shares as provided in Section 5._.2 are in arrears,
thereafter and until all accrued and unpaid dividends and distributions, whether
or not declared, on shares of Preferred Shares 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 Preferred Shares;

               (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 Preferred Shares, except
dividends paid ratably on the Preferred Shares 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 Preferred Shares; provided, however, 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 Preferred Shares; or

               (iv)   redeem or purchase or otherwise acquire for consideration
any Preferred Shares, or any stock ranking on a parity with the Preferred
Shares, 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



                                      A-3
<PAGE>   40

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 5._.4, purchase or otherwise acquire such shares at such time and
in such manner.

               5._.5. REACQUIRED SHARES.

        Any Preferred Shares 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 Amended and Restated Articles of
Incorporation, or in any other certificate of designation creating a series of
preferred stock or any similar stock or as otherwise required by law.

               5._.6. LIQUIDATION, DISSOLUTION OR WINDING UP.

        Upon any liquidation, dissolution or winding up of the Corporation, no
distribution shall be made (a) to the holders of shares of stock ranking junior
(either as to dividends or upon liquidation, dissolution or winding up) to the
Preferred Shares unless, prior thereto, the holders of Preferred Shares shall
have received the greater of (i) $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 (ii) 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 Common Stock, or (b) to the
holders of stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with the Preferred Shares, except
distributions made ratably on the Preferred Shares 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 after _________, 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) 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 Preferred Shares were entitled immediately prior to such event under
clause (a)(ii) 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.



                                      A-4
<PAGE>   41

               5._.7. CONSIDERATION, 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 Preferred Shares 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 Corporation shall at any time after
__________, 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) 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 Preferred Shares 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.

               5._.8. NO REDEMPTION.

        The shares of Preferred Shares shall not be redeemable.

               5._.9. RANK.

        The Preferred Shares shall rank, with respect to the payment of
dividends and the distribution of assets, junior to all series of any other
class of the Corporation's preferred stock.

               5._.10. FRACTIONAL SHARES.

        Preferred Shares may be issued in fractions of a share which are
integral multiples of one one-hundredth of a share which shall entitle the
holder, in proportion to such holder's fractional shares, to receive dividends,
participate in distributions and to have the benefit of all other rights of
holders of Preferred Shares.

               5._.11. AMENDMENT.

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

        THIRD: This amendment was adopted by resolution of the Board of
Directors on __________, without shareholder approval, which, in accordance with
RCW 23B.06.020, such approval was not required.



                                      A-5
<PAGE>   42

        The foregoing is executed under penalty of perjury by the undersigned,
who is authorized to do so on behalf of the Corporation.

        DATED this _______ day of _________________.

                                       SeaMED CORPORATION


                                       By ______________________________________
                                                     [Name and Title]




                                      A-6
<PAGE>   43

                                    EXHIBIT B

                            FORM OF RIGHT CERTIFICATE

Certificate No. R- _____                                              ___ Rights


NOT EXERCISABLE AFTER JANUARY 27, 2008 OR EARLIER IF REDEMPTION OR EXCHANGE
OCCURS. THE RIGHTS ARE SUBJECT TO REDEMPTION AT $0.0001 PER RIGHT AND TO
EXCHANGE ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN
CIRCUMSTANCES, AS SET FORTH IN THE RIGHTS AGREEMENT, RIGHTS OWNED BY OR
TRANSFERRED TO ANY PERSON WHO BECOMES AN ACQUIRING PERSON (AS DEFINED IN THE
RIGHTS AGREEMENT) AND CERTAIN TRANSFEREES THEREOF WILL BECOME NULL AND VOID AND
WILL NO LONGER BE TRANSFERABLE.


                                RIGHT CERTIFICATE

                               SEAMED CORPORATION

        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 January 27, 1998, as the same may be amended from time to
time (the "Rights Agreement"), between SeaMED Corporation, a Washington
corporation (the "Company"), and ChaseMellon Shareholder Services, L.L.C., a
New Jersey limited liability company, as Rights Agent (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., Seattle time, on
January 27, 2008 at the office or agency of the Rights Agent designated for such
purpose, or of its successor as Rights Agent, one one-hundredth of a share of
Series A Junior Participating Preferred Stock, no par value per share (the
"Preferred Stock"), of the Company, at a purchase price of $_____ (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
Rights Certificate (and the number of one one-hundredths of a share of Preferred
Stock 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 Stock as constituted at such
date. As provided in the Rights Agreement, the Purchase Price, the number of one
one-hundredths of a share of Preferred Stock (or other securities or property)
which may be purchased upon the exercise of the Rights and the number of 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, 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



                                      B-1
<PAGE>   44

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 office or agency of the
Rights Agent. The Company will mail to the holder of this Right Certificate a
copy of the Rights Agreement without charge after receipt of a written request
therefor.

        From and after the date that any Person becomes an Acquiring Person, any
rights that are or were acquired or beneficially owned by an Acquiring Person
(or any Associate or Affiliate of such Acquiring Person) (as such terms are
defined in the Rights Agreement) shall be void and any holder of such Rights
shall thereafter have no right to exercise such Rights under any provision of
this Right Certificate.

        This Right Certificate, with or without other Right Certificates, upon
surrender at the office or agency 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 shares of Preferred Stock 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
$0.0001 per Right or (ii) may be exchanged in whole or in part for shares of
Common Stock.

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

        No holder of this Right Certificate, as such, shall be entitled to vote
or receive dividends or be deemed for any purpose the holder of the Preferred
Stock 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 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.




                                      B-2
<PAGE>   45

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

ATTEST:                                SeaMED CORPORATION



By                                     By_______________________________________

                                         Its____________________________________



Countersigned:

_________________________________,
as Rights Agent



By________________________________

  Its_____________________________








                                      B-3
<PAGE>   46

                    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 transfer unto

________________________________________________________________________________

________________________________________________________________________________
                  (Please print name and address of transferee)

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

Dated: _________________



                                       _________________________________________
                                                       Signature

Signature Guaranteed:


Signatures must be guaranteed by an eligible guarantor institution (a bank,
stockbroker, savings and loan association or credit union with membership in an
approved signature guarantee medallion program) pursuant to Rule 17Ad-15 of the
Securities Exchange Act of 1934.


________________________________________________________________________________
                                (To be completed)

The undersigned hereby certifies that the Rights evidenced by this Right
Certificate are not beneficially owned by, were not acquired by the undersigned
from, and are not being assigned to an Acquiring Person or an Affiliate or
Associate thereof (as defined in the Rights Agreement).



                                       _________________________________________
                                                       Signature






                                      B-4
<PAGE>   47

              FORM OF REVERSE SIDE OF RIGHT CERTIFICATE - CONTINUED

                          FORM OF ELECTION TO PURCHASE

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

To SeaMED CORPORATION:

The undersigned hereby irrevocably elects to exercise __________________ Rights
represented by this Right Certificate to purchase the shares of Preferred Stock
(or such other securities or property) issuable upon the exercise of such Rights
and requests that certificates for such shares of Preferred Stock (or such other
securities) be issued in the name of:

________________________________________________________________________________
                         (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 delivery to:

Please insert social security
or other identifying number


________________________________________________________________________________
                         (Please print name and address)

________________________________________________________________________________



Dated:  ____________________


                                       _________________________________________
                                                       Signature
                                           (Signature must conform to holder
                                            specified on Right Certificate)

Signature Guaranteed:

Signatures must be guaranteed by an eligible guarantor institution (a bank,
stockbroker, savings and loan association or credit union with membership in an
approved signature guarantee medallion program) pursuant to Rule 17Ad-15 of the
Securities Exchange Act of 1934.






                                      B-5
<PAGE>   48

              FORM OF REVERSE SIDE OF RIGHT CERTIFICATE - CONTINUED

                                (To be completed)


________________________________________________________________________________

        The undersigned certifies that the Rights evidenced by this Right
Certificate are not beneficially owned by, and were not acquired by the
undersigned from, an Acquiring Person or an Affiliate or Associate thereof (as
defined in the Rights Agreement)


                                       _________________________________________
                                                       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, such
Assignment or Election to Purchase will not be honored.







                                      B-6
<PAGE>   49


                                    EXHIBIT C

                            FORM OF SUMMARY OF RIGHTS


UNDER CERTAIN CIRCUMSTANCES, AS SET FORTH IN THE RIGHTS AGREEMENT, RIGHTS OWNED
BY OR TRANSFERRED TO ANY PERSON WHO BECOMES AN ACQUIRING PERSON (AS DEFINED IN
THE RIGHTS AGREEMENT) AND CERTAIN TRANSFEREES THEREOF WILL BECOME NULL AND VOID
AND WILL NO LONGER BE TRANSFERABLE.

                          SUMMARY OF RIGHTS TO PURCHASE
                                PREFERRED SHARES

        On January 27, 1998, the Board of Directors of SeaMED Corporation (the
"Company") declared a dividend of one preferred share purchase right (a "Right")
for each outstanding share of common stock, no par value per share, of the
Company (the "Common Stock"). The dividend is payable on February 16, 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,
no par value per share, of the Company (the "Preferred Stock") at a price of
$110 per one one-hundredth of a share of Preferred Stock (the "Purchase Price"),
subject to adjustment. The description and terms of the Rights are set forth in
a Rights Agreement dated as of January 27, 1998, as the same may be amended from
time to time (the "Rights Agreement"), between the Company and ChaseMellon
Shareholder Services, L.L.C., as Rights Agent (the "Rights Agent").

        Until the earlier to occur of (i) 10 days following a public
announcement or awareness by the Board of Directors that a person or group of
affiliated or associated persons (an "Acquiring Person") have acquired
beneficial ownership of 15% or more of the outstanding shares of Common Stock,
other than pursuant to a Permitted Offer (as defined below) 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 group of affiliated persons
becomes an Acquiring Person) following the commencement of, or announcement of
an intention to make, a tender offer or exchange offer the consummation of which
would result in the beneficial ownership by a person or group of 15% or more of
the outstanding shares of Common Stock, other than pursuant to a Permitted Offer
(the earlier of such dates being called the "Distribution Date"), the Rights
will be evidenced, with respect to any of the Common Stock certificates
outstanding as of the Record Date, by such Common Stock certificate.
Notwithstanding the foregoing, R. Scott Asen, who owns more than 15% of the
outstanding shares of the Common Stock, will not be deemed an Acquiring Person
for any purposes of the Rights Agreement unless and until, after first falling
below a 15% ownership interest, he once again becomes the beneficial owner of
more than 15% of the outstanding shares of the Common Stock.




                                      C-1
<PAGE>   50

        A "Permitted Offer" is a tender offer or an exchange offer for all
outstanding shares of Common Stock of the Company at a price and on terms
determined by the Board of Directors of the Company, after receiving advice from
one or more investment banking firms, to be (i) fair to shareholders (taking
into account all factors which the Board of Directors deems relevant) and (ii)
otherwise in the best interests of the Company and its shareholders and which
the Board of Directors determines to recommend to the shareholders of the
Company.

        The Rights Agreement provides that, until the Distribution Date (or
earlier redemption or expiration of the Rights), the Rights will be transferred
with and only with the Common Stock. Until the Distribution Date (or earlier
redemption or expiration of the Rights), new Common Stock certificates issued
after the Record Date upon transfer or new issuances of Common Stock will
contain a notation incorporating the Rights Agreement by reference. Until the
Distribution Date (or earlier redemption or expiration of the Rights), the
surrender for transfer of any certificates for shares of Common Stock
outstanding as of the Record Date, will also constitute the transfer of the
Rights associated with the shares of Common Stock 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 Stock as of the close of business on the
Distribution Date and such separate Right Certificates alone will evidence the
Rights.

        The Rights are not exercisable until the Distribution Date. The Rights
will expire on January 27, 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.

        The Purchase Price payable, and the number of shares of Preferred Stock
or other securities or property issuable, 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 Stock, (ii) upon the grant to holders of the Preferred Stock of
certain rights or warrants to subscribe for or purchase Preferred Stock at a
price, or securities convertible into Preferred Stock with a conversion price,
less than the then-current market price of the Preferred Stock or (iii) upon the
distribution to holders of the Preferred Stock of evidences of indebtedness or
assets (excluding regular periodic cash dividends or dividends payable in
Preferred Stock) or of subscription rights or warrants (other than those
referred to above). With certain exceptions, no adjustment in the Purchase Price
will be required until cumulative adjustments require an adjustment of at least
1% in the Purchase Price.

        No fraction of a share of Preferred Stock (other than fractions in
integral multiples of one one-hundredth of a share) will be issued and, in lieu
thereof, an adjustment in cash will be made based on the closing price on the
last trading date prior to the date of exercise.

        The number of outstanding Rights and the number of one one-hundredths of
a share of Preferred Stock issuable upon exercise of each Right are also subject
to adjustment in the event of a stock split of the Common Stock or a stock
dividend on the Common Stock payable in shares of




                                      C-2
<PAGE>   51

Common Stock or subdivisions, consolidations or combinations of the Common Stock
occurring, in any such case, prior to the Distribution Date.

        Shares of Preferred Stock purchasable upon exercise of the Rights will
not be redeemable. Each share of Preferred Stock will be entitled to a minimum
preferential quarterly dividend payment of $1.00 per share but will be entitled
to an aggregate dividend of 100 times the dividend declared per share of Common
Stock. In the event of liquidation, the holder of shares of Preferred Stock will
be entitled to a minimum preferential liquidation payment of $100.00 per share
but will entitled to an aggregate payment of 100 times the payment made per
share of Common Stock. Each share of Preferred Stock will have 100 votes, voting
together with the shares of Common Stock. Finally, in the event of any merger,
consolidation or other transaction in which shares of Common Stock are
exchanged, each share of Preferred Stock will be entitled to receive 100 times
the amount received per share of Common Stock. These rights are subject to
adjustment in the event of a stock dividend on the shares of Common Stock or a
subdivision, combination or consolidation of the shares of Common Stock.

        In the event that any person or group of affiliated or associated
persons becomes an Acquiring Person, each holder of a Right, other than Rights
beneficially owned by the Acquiring Person (which will thereupon become void),
will thereafter have the right to receive upon exercise of a Right at the then
current exercise price of the Right, that number of shares of Common Stock (or,
in lieu of Common Stock, such number or fraction of shares of Preferred Stock
equivalent in value to such number of shares of Common Stock) having a market
value of two times the exercise price of the Right.

        In the event that, after a person or group has become an Acquiring
Person, 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,
proper provision will be made so that each holder of a Right (other than Rights
beneficially owned by an Acquiring Person which will have become void) will
thereafter have the right to receive, upon the exercise of the Right at the then
current exercise price of the Right, that number of shares of common stock of
the person with whom the Company has engaged in the foregoing transaction which
number of shares at the time of such transaction will have a market value of two
times the exercise price of the Right.

        At any time after any person or group becomes an Acquiring Person and
prior to the acquisition by such person or group of 50% or more of the
outstanding shares of Common Stock or the occurrence of an event described in
the prior paragraph, 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 share of Common Stock
per Right (subject to adjustment).

        At any time prior to the close of business on the day 10 days after an
Acquiring Person becomes such, the Board of Directors of the Company may redeem
the Rights in whole, but not in part, at a price of $.0001 per Right (the
"Redemption Price"). The redemption of the Rights may be made effective at such
time, on such basis and with such conditions as the Board of Directors in its
sole discretion may establish. Immediately upon any redemption of the Rights,
the right to




                                      C-3
<PAGE>   52

exercise the Rights will terminate and the only right of the holders of Rights
will be to receive the Redemption Price.

        For so long as no person has become an Acquiring Person, the Company may
amend the Rights in any manner. After a person has become an Acquiring Person,
the Company may amend the Rights in any manner that does not adversely affect
the interests of holders of the Rights.

        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.

        A copy of the Rights Agreement has been filed with the Securities and
Exchange Commission as an Exhibit to a Registration Statement on Form 8-A. A
copy of the Rights Agreement is available free of charge from the Company.

                               SEAMED CORPORATION
                           14500 NORTHEAST 87TH STREET
                         REDMOND, WASHINGTON 98052-3431
                          ATTN: CHIEF FINANCIAL OFFICER
                                 (425) 867-1818

This summary description of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Rights Agreement, as the same may
be amended from time to time, which is hereby incorporated herein by reference.






                                       C-4

<PAGE>   1


FOR IMMEDIATE RELEASE


CONTACT:  Ed Rampy                              Cathy Corley
          Chief Financial Officer               Investor Relations
          SeaMED Corporation                    Fi.Comm
          (425) 867-1818                        (206) 467-6732



                SeaMED CORPORATION ADOPTS SHAREHOLDER RIGHTS PLAN


        Redmond, Washington -- January 27, 1998 -- SeaMED Corporation (Nasdaq:
SEMD) today announced that its Board of Directors has adopted a Shareholder
Rights Plan. The Rights provide protection against coercive or unfair takeover
tactics, and should encourage anyone seeking to acquire the Company to first
negotiate with the Company's Board of Directors. The Rights Plan is similar to
plans adopted by many public companies and should provide a sound and reasonable
means of safeguarding the interests of all shareholders should an effort be made
to acquire the Company at a price not reflective of its fair value.

        In connection with the adoption of the Rights Plan, the Board declared a
dividend of one Preferred Stock Purchase Right for each outstanding share of the
Company's Common Stock. Each Right, which is not presently exercisable, entitles
the holder to purchase one one-hundredth of a share of the Company's Series A
Junior Participating Preferred Stock (the "Preferred Stock") at an exercise
price of $110. In the event that any person acquires 15% or more of the
outstanding shares of Company's Common Stock, each holder of a Right (other than
the acquiring person or group) will be entitled to receive, upon payment of the
exercise price, that number of shares of Preferred Stock having a market value
equal to two times the exercise price.

        The distribution of the Rights will be made on February 16, 1998,
payable to shareholders of record at the close of business on that date. The
Rights will expire on January 27, 2008. The Rights distribution is not taxable
to shareholders.

        Details of the Rights distribution are contained in a "Summary of Rights
to Purchase Preferred Shares", which is being mailed to all shareholders of the
Company.

        SeaMED Corporation designs and manufactures advanced electronic
instruments for medical and commercial technology companies. With its
combination of engineering, manufacturing and regulatory expertise, the Company
assists its customers in developing and commercializing their complex products.
SeaMED is headquartered in Redmond, Washington and has approximately 435
employees.


                                       END



                                      -1-


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