<Page>


                                                                     EXHIBIT 4.4






                           DADE BEHRING HOLDINGS, INC.



                                       AND



                          MELLON INVESTOR SERVICES LLC


                                 AS RIGHTS AGENT





                                RIGHTS AGREEMENT
                           DATED AS OF OCTOBER 3, 2002



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                                TABLE OF CONTENTS

<Table>
<Caption>

                                                                           PAGE
                                                                           ----

<S>                                                                        <C>
Section 1. Certain Definitions..............................................1

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

Section 3. Issuance of Right Certificates...................................4

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

Section 5. Countersignature and Registration................................7

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....8

Section 8. Cancellation and Destruction of Right Certificates...............9

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

Section 10. Preferred Stock Record Date.....................................10

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

Section 12. Certificate of Adjusted Purchase Price or Number of Shares......18

Section 13. Consolidation, Merger or Sale or Transfer of Assets or
            Earnings Power..................................................18

Section 14. Fractional Rights and Fractional Shares.........................22

Section 15. Rights of Action................................................23

Section 16. Agreement of Right Holders......................................23

Section 17. Right Certificate Holder Not Deemed a Stockholder...............24

SECTION 18. CONCERNING THE RIGHTS AGENT.....................................24

Section 19. Merger or Consolidation or Change of Name of Rights Agent.......25

Section 20. Duties of Rights Agent..........................................25

Section 21. Change of Rights Agent..........................................28

Section 22. Issuance of New Right Certificates..............................28


                                       -i-
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Section 23. Redemption......................................................29

Section 24. Exchange........................................................29

Section 25. Notice of Certain Events........................................30

Section 26. Notices.........................................................31

Section 27. Supplements and Amendments......................................32

Section 28. Successors......................................................32

Section 29. Benefits of this Rights Agreement...............................32

Section 30. Determinations and Actions by the Board of Directors............32

Section 31. Severability....................................................33

Section 32. Governing Law...................................................33

Section 33. Counterparts....................................................33

Section 34. Descriptive Headings............................................33


                                    EXHIBITS

Exhibit A         -        Form of Certificate of Designations

Exhibit B         -        Form of Right Certificate

Exhibit C         -        Form of Summary of Rights to Purchase

</Table>
                                      -ii-

<Page>

                             INDEX OF DEFINED TERMS

<Table>
<Caption>
                                                                    PAGE
<S>                                                                   <C>
Acquiring Person..................................................... 1
Affiliate............................................................ 2
Associate............................................................ 2
Authorized Officer...................................................26
Beneficial Owner..................................................... 2
Beneficial Ownership................................................. 2
beneficially own..................................................... 2
Business Day......................................................... 3
close of business.................................................... 3
Common Stock......................................................... 3
Common Stock equivalents.............................................13
Company.............................................................. 1
Current Value........................................................12
Distribution Date.................................................... 5
equivalent preferred shares..........................................13
Exchange Act......................................................... 2
Exchange Ratio.......................................................29
Exempt Person........................................................ 4
Expiration Date...................................................... 8
Final Expiration Date................................................ 8
invalidation time....................................................11
Nasdaq............................................................... 4
Original Rights...................................................... 2
Ownership Statement.................................................. 4
Person............................................................... 4
Preferred Stock...................................................... 4
Principal Party......................................................19
Purchase Price....................................................... 8
Record Date.......................................................... 1
Redemption Date...................................................... 8
Redemption Price.....................................................29
Right................................................................ 1
Right Certificate.................................................... 5
Rights Agent......................................................... 1
Rights Agreement..................................................... 1
Section 11(a)(ii) Trigger Date.......................................13
Securities Act....................................................... 4
Security.............................................................15
Spread...............................................................12
Stock Acquisition Date............................................... 4
Subsidiary........................................................... 4
Substitution Period..................................................13
Summary of Rights.................................................... 5
then outstanding..................................................... 2
Trading Day..........................................................15
</Table>

                                     -iii-
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                                RIGHTS AGREEMENT


          Rights Agreement, dated as of October 3, 2002 (as amended,
supplemented or otherwise modified from time to time, the "RIGHTS AGREEMENT")
between DADE BEHRING HOLDINGS, INC., a Delaware corporation (the "COMPANY"), and
MELLON INVESTOR SERVICES LLC, a New Jersey limited liability company (the
"RIGHTS AGENT").

          On October 3, 2002, a dividend of one preferred share purchase right
(a "RIGHT") for each share of Common Stock (as defined below) of the Company
outstanding as of the consummation of the Plan of Reorganization (the "RECORD
DATE") was authorized and declared, with each Right representing the right to
purchase one one-thousandth (subject to adjustment) of a share of Preferred
Stock (as defined below), upon the terms and subject to the conditions herein
set forth, and 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 earlier of the Distribution Date and the
Expiration Date (as such terms are hereinafter defined) has been further
authorized and directed; 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 Expiration Date in accordance with Section
22.

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

          Section 1. CERTAIN DEFINITIONS. For purposes of this Rights
Agreement, the following terms have the  meaning indicated:

          (a) "ACQUIRING PERSON" shall mean any Person (as defined below) who or
which shall be the Beneficial Owner (as defined below) of 15% or more of the
shares of Common Stock then outstanding, but shall not include an Exempt Person
(as defined below); PROVIDED, HOWEVER, that if the Board of Directors of the
Company determines in good faith that a Person who would otherwise be an
"Acquiring Person" has become such inadvertently (including, without limitation,
because (A) such Person was unaware that it beneficially owned a percentage of
Common Stock that would otherwise cause such Person to be an "Acquiring Person"
or (B) such Person was aware of the extent of its Beneficial Ownership of Common
Stock but had no actual knowledge of the consequences of such Beneficial
Ownership under this Rights Agreement) and without any intention of changing or
influencing control of the Company, then such Person shall not be deemed to be
or to have become an "Acquiring Person" for any purposes of this Rights
Agreement unless and until such Person shall have failed to divest itself, as
soon as practicable, if the Company so requests, of Beneficial Ownership of a
sufficient number of shares of Common Stock so that such Person would no longer
otherwise qualify as an "Acquiring Person". Notwithstanding the foregoing: (i)
if as of the Record Date, any Person is the Beneficial Owner of 15% or more of
the shares of Common Stock then outstanding such Person shall not be deemed to
be or to become an "Acquiring Person" unless and until such time as such Person
shall (A) after the date hereof become the Beneficial Owner of additional shares
of Common Stock (other than pursuant to a dividend or distribution paid or made
by the Company on the outstanding Common Stock or pursuant to a split or
subdivision of the outstanding Common Stock) and (B) upon becoming the
Beneficial Owner of such additional



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shares of Common Stock referred to in clause (A), such Person is then the
Beneficial Owner of 15% or more of the shares of Common Stock then outstanding;
and (ii) no Person shall be deemed an "Acquiring Person" as the result of an
acquisition of shares 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 15% or more of the shares of Common Stock
then outstanding; PROVIDED, HOWEVER, that if a Person shall become the
Beneficial Owner of 15% or more of the shares of Common Stock then outstanding
by reason of such share acquisitions by the Company referred to in this clause
(ii) and thereafter becomes the Beneficial Owner of any additional shares of
Common Stock (other than pursuant to a dividend or distribution paid or made by
the Company on the outstanding Common Stock or pursuant to a split or
subdivision of the outstanding Common Stock), then such Person shall be deemed
to be an "Acquiring Person," subject to the proviso set forth in the first
sentence of this Section 1(a), unless upon the consummation of the acquisition
of such additional shares of Common Stock such Person does not beneficially own
15% or more of the shares of Common Stock then outstanding. The phrase "THEN
OUTSTANDING", when used with reference to a Person's Beneficial Ownership of
securities of the Company, shall mean the number of such securities then issued
and outstanding together with the number of such securities not then actually
issued and outstanding which such Person would be deemed to own beneficially
hereunder.

          (b) "AFFILIATE" and "ASSOCIATE" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under
the Securities Exchange Act of 1934, as amended (the "EXCHANGE ACT"), as in
effect on the date of this Rights Agreement.

          (c) 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 Rights Agreement;

          (ii) which such Person or any of such Person's Affiliates or
     Associates has (A) the right to acquire (whether such right is exercisable
     immediately or only after the passage of time) pursuant to any agreement,
     arrangement or understanding (other than customary agreements with and
     between underwriters and selling group members with respect to a bona fide
     public offering of securities), written or otherwise, or upon the exercise
     of conversion rights, exchange rights, rights (other than the Rights),
     warrants or options, or otherwise; PROVIDED, HOWEVER, that a Person shall
     not be deemed the Beneficial Owner of, or to beneficially own, (x)
     securities tendered pursuant to a tender or exchange offer made by or on
     behalf of such Person or any of such Person's Affiliates or Associates
     until such tendered securities are accepted for purchase or exchange, (y)
     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 (z) 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 or Section 22 hereof (the
     "ORIGINAL RIGHTS") or pursuant to Section 11(i) or Section 11(n) with
     respect to an adjustment to the

                                       - 2 -
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     Original Rights; or (B) the right to vote pursuant to any agreement,
     arrangement or understanding, written or otherwise; 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 (1)
     arises solely from a revocable proxy or consent given to such Person in
     response to a public proxy or consent solicitation made pursuant to, and in
     accordance with, the applicable rules and regulations promulgated under the
     Exchange Act and (2) is not also then reportable on Schedule 13D under the
     Exchange Act (or any comparable or successor report); or

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

PROVIDED, HOWEVER, that (x) no Person who is an officer, director, or employee
of an Exempt Person shall be deemed, solely by reason of such Person's status or
authority as such, to be the "Beneficial Owner" of, to have "Beneficial
Ownership" of or to "beneficially own" any securities that are "beneficially
owned" (as defined in this Section 1(c)), including, without limitation, in a
fiduciary capacity, by an Exempt Person or by any other such officer, director
or employee of an Exempt Person; (y) a Person shall not be deemed the Beneficial
Owner of, to have "Beneficial Ownership" of or to beneficially own, shares of
Common Stock (or securities convertible into, exchangeable into or exercisable
for Common Stock) held by such Person in trust accounts, managed accounts and
the like, or otherwise held in a fiduciary capacity, that are Beneficially Owned
by third Persons who are not Affiliates or Associates of such Person; and (z)
nothing in this Section 1(c) shall cause a Person engaged in business as an
underwriter of securities to be the "Beneficial Owner" of, or to "beneficially
own" any securities acquired through such Person's participation in good faith
in a firm commitment underwriting until the expiration of forty days after the
date of such acquisition, and then only if such securities continue to be owned
by such person at the expiration of forty days.

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

          (e) "CLOSE OF BUSINESS" on any given date shall mean 5:00 P.M.,
Chicago, Illinois time, on such date; PROVIDED, HOWEVER, that if such date is
not a Business Day it shall mean 5:00 P.M., Chicago, Illinois time, on the next
succeeding Business Day.

          (f) "COMMON STOCK" when used with reference to the Company shall mean
the common stock, par value $.01, 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


                                       - 3 -
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Person or, if such other Person is a subsidiary of another Person, the Person or
Persons which ultimately control such first-mentioned Person.

          (g) "EXEMPT PERSON" shall mean the Company, any Subsidiary (as defined
below) of the Company, in each case including, without limitation, in its
fiduciary capacity, or any employee benefit plan of the Company or of any
Subsidiary of the Company or 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.

          (h) "NASDAQ" shall mean The Nasdaq Stock Market's National Market.

          (i) "OWNERSHIP STATEMENT" shall have the meaning set forth in Section
3(a) hereof.

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

          (k) "PREFERRED STOCK" shall mean the Series A Junior Participating
Preferred Stock, par value $.01 per share, of the Company having the rights and
preferences set forth in the Form of Certificate of Designations attached to
this Rights Agreement as Exhibit A.

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

          (m) "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.

          (n) "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.

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

          Section 3. ISSUANCE OF RIGHT CERTIFICATES. (a) Until the close of
business on 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


                                       - 4 -
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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 (other than an Exempt
Person) becoming the Beneficial Owner of 15% or more of the shares of Common
Stock then outstanding (including, in the case of both clause (i) and (ii), any
such date which is after the date of this Rights Agreement and prior to the
issuance of the Rights) (the earlier of such dates being herein referred to as
the "DISTRIBUTION DATE"), (x) the Rights will be evidenced (subject to the
provisions of Section 3(b) hereof) by the certificates for Common Stock
registered in the names of the holders thereof, or by a current ownership
statement issued with respect to uncertificated shares of Common Stock in lieu
of such a certificate (an "OWNERSHIP STATEMENT"), and not by separate Right
Certificates (as defined below), and (y) the Rights 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 and
prepare and execute, the Rights Agent will countersign, and the Company will
send or cause to be sent (and the Rights Agent will, if requested and provided
with all relevant information, send) by first-class, insured, 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 and after the Distribution
Date, the Rights will be evidenced solely by such Right Certificates.

          (b) As promptly as practicable following the Record Date, the Company
will send a copy of a Summary of Rights to Purchase Shares of Preferred Stock,
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 shares of Common Stock
outstanding as of the Record Date, until the Distribution Date, the Rights
associated with such shares will be evidenced by the share certificate for such
shares of Common Stock registered in the names of the holders thereof together
with the Summary of Rights. Until the Distribution Date (or, if earlier, the
Expiration Date), the surrender for transfer of any certificate for Common Stock
outstanding on the Record Date, with or without a copy of the Summary of Rights,
shall also constitute the transfer of the Rights associated with the Common
Stock represented thereby.

          (c) Rights shall be issued in respect of all shares of Common Stock
issued or disposed of (including, without limitation, upon 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 earlier
of the Distribution Date and the Expiration Date, or in certain circumstances
provided in Section 22 hereof, after the Distribution Date. 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 earlier of the Distribution Date and the Expiration
Date shall have impressed on, printed on, written on or otherwise affixed to
them the following legend:


                                       - 5 -
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          This [certificate] [statement] also evidences and entitles the holder
          hereof to certain rights as set forth in a Rights Agreement between
          Dade Behring Holdings, Inc. and Mellon Investor Services LLC, dated as
          of October 3, 2002, as the same may be amended, supplemented or
          otherwise modified 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 Dade Behring
          Holdings, Inc. Under certain circumstances, as set forth in the Rights
          Agreement, such Rights will be evidenced by separate [certificates]
          [statements] and will no longer be evidenced by this [certificate]
          [statement]. Dade Behring Holdings, Inc. 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 transferred to
          any Person who is or 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.

With respect to such certificates or ownership statements containing the
foregoing legend, until the Distribution Date, the Rights associated with the
Common Stock represented by such certificates or ownership statements shall be
evidenced by such certificates alone, and the surrender for transfer of any such
certificate or the transfer of any shares of Common Stock represented by such
ownership statements, except as otherwise 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 cancelled and retired so that the Company
shall not be entitled to exercise any Rights associated with the shares of
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 Rights 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 (but which shall not affect the rights, immunities, duties or
liabilities of the Rights Agent) and as are not inconsistent with the provisions
of this Rights 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 Nasdaq or of any other stock exchange or automated quotation
system 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-thousandths of a share of Preferred Stock as shall be set forth therein at
the Purchase Price (as determined pursuant to Section 7), but the amount and
type of securities purchasable upon the exercise of each Right and the Purchase
Price thereof shall be subject to adjustment as provided herein.


                                       - 6 -
<Page>

          Section 5. COUNTERSIGNATURE AND REGISTRATION. (a) The Right
Certificates shall be executed on behalf of the Company by the Chief Executive
Officer, the President, any of the Vice Presidents or the Treasurer of the
Company, either manually or by facsimile signature, shall have affixed thereto
the Company's seal or a facsimile thereof and shall be attested by the Secretary
or an Assistant Secretary of the Company, either manually or by facsimile
signature. The Right Certificates shall be countersigned by the Rights Agent,
either manually or by facsimile signature, 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 Rights
Agreement any such Person was not such an officer.

          (b) Following the Distribution Date, the Rights Agent will keep or
cause to be kept, at an office or 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 this Rights Agreement, at any time after the close
of business on the Distribution Date, and prior to the close of business on the
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-thousandths of a share of Preferred Stock (or, following such time, other
securities, cash or assets as the case may be) 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, subject to
the provisions of this Rights Agreement, 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 to take any action under any Section of
this Agreement which requires the payment by a Rights holder of applicable taxes
and government charges unless and until the Rights Agent is reasonably satisfied
that all such taxes and/or charges have been paid.

          (b) Subject to the provisions of this Rights Agreement, at any time
after the Distribution Date and prior to the 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


                                       - 7 -
<Page>

Right Certificate, and, in case of loss, theft or destruction, of indemnity or
security reasonably satisfactory to them, and, at the Company's or the Rights
Agent'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-thousandth of a share of
Preferred Stock (or other securities, cash or assets, as the case may be) as to
which the Rights are exercised, at any time which is both after the Distribution
Date and prior to the time (the "EXPIRATION DATE") that is the earliest of (i)
the close of business on tenth (10th) anniversary of the date hereof (the "FINAL
EXPIRATION DATE"), (ii) the time at which the Rights are redeemed as provided in
Section 23 hereof (the "REDEMPTION DATE") or (iii) the time at which such Rights
are exchanged as provided in Section 24 hereof.

          (b) The purchase price (the "PURCHASE PRICE") shall be initially
$80.00 for each one one-thousandth of a share of Preferred Stock purchasable
upon the exercise of a Right. The Purchase Price and the number of one
one-thousandths of a share of Preferred Stock or other securities or property to
be acquired upon exercise of a Right shall be subject to adjustment from time to
time as provided in Sections 11 and 13 hereof and shall be payable in lawful
money of the United States of America in accordance with paragraph (c) 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 number of shares of Preferred Stock 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 6 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) (A) requisition from any
transfer agent of the Preferred Stock (or make available if the Rights Agent is
the transfer agent of the Preferred Stock) certificates for the number of shares
of Preferred Stock to be purchased (and the Company hereby irrevocably
authorizes its transfer agent to comply with all such requests), or (B)
requisition from the depositary agent appointed by the Company depositary
receipts representing interests in such number of one one-thousandths of a share
of Preferred Stock as are to be purchased, in which case certificates for the
Preferred Stock represented by such receipts shall be deposited by the transfer
agent with the depositary agent (and the Company hereby directs the depositary
agent to comply with such request), (ii) when appropriate, requisition from the
Company the amount of cash to be paid in lieu of issuance of fractional shares
in accordance with Section 14 hereof, (iii) promptly after receipt of such
certificates or depositary receipts, cause the same to be delivered to or upon
the order of the registered holder of such Right Certificate, registered in such
name or names as may be designated by such holder and (iv) when


                                       - 8 -
<Page>

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 Sections 6 and 14 hereof.

          (e) Notwithstanding anything in this Rights 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 Right 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 the Rights Agent shall reasonably request.

          Section 8. CANCELLATION AND DESTRUCTION OF RIGHT CERTIFICATES. All
Right Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or to any of its
agents, be delivered to the Rights Agent for cancellation or in cancelled form,
or, if surrendered to the Rights Agent, shall be cancelled by it, and no Right
Certificates shall be issued in lieu thereof except as expressly permitted by
any of the provisions of this Rights 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 cancelled Right Certificates to the Company, or shall, at the written
request of the Company, destroy or cause to be destroyed such cancelled Right
Certificates, and in such case shall deliver a certificate of destruction
thereof to the Company.

          Section 9. AVAILABILITY OF SHARES OF PREFERRED STOCK. (a) The Company
covenants and agrees that it will cause to be reserved and kept available out of
its authorized and unissued shares of Preferred Stock or any shares of Preferred
Stock held in its treasury, the number of shares of Preferred Stock that will be
sufficient to permit the exercise in full of all outstanding Rights.

          (b) So long as the shares of Preferred Stock (and, following the time
that a Person becomes an Acquiring Person, shares of Common Stock and other
securities) issuable upon the exercise of Rights may be listed or admitted to
trading on Nasdaq or listed on any other national securities exchange or
quotation system, the Company shall use its reasonable best efforts to cause,
from and after such time as the Rights become exercisable, all shares reserved
for such issuance to be listed or admitted to trading on Nasdaq or listed on any
other exchange or quotation system upon official notice of issuance upon such
exercise.

          (c) From and after such time as the Rights become exercisable, the
Company shall use its reasonable best efforts, if then necessary to permit the
issuance of shares of Preferred Stock (and following the time that a Person
first becomes an Acquiring Person, shares


                                       - 9 -
<Page>

of Common Stock and other securities) upon the exercise of Rights, to register
and qualify such shares of Preferred Stock (and following the time that a Person
first becomes an Acquiring Person, shares of Common Stock and other securities)
under the Securities Act and any applicable state securities or "Blue Sky" laws
(to the extent exemptions therefrom are not available), cause such registration
statement and qualifications to become effective as soon as possible after such
filing and keep such registration and qualifications effective until the earlier
of (x) the date as of which the Rights are no longer exercisable for such
securities and (y) the Expiration Date. The Company may temporarily suspend, for
a period of time not to exceed ninety (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 (with prompt written notice of
each such announcement to the Rights Agent). Notwithstanding any provision of
this Rights Agreement to the contrary, the Rights shall not be exercisable in
any jurisdiction unless the requisite qualification or exemption 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 shares of Preferred Stock (and, following
the time that a Person becomes an Acquiring Person, shares of Common Stock and
other securities) 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 governmental charges which may be payable in
respect of the issuance or delivery of the Right Certificates or of any shares
of Preferred Stock (or shares of Common Stock 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 Stock (or shares of Common Stock 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 or depositary receipts for Preferred Stock (or shares
of Common Stock or other securities) upon the exercise of any Rights until any
such tax or charge shall have been paid (any such tax or charge 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 or
charge is due.

          Section 10. PREFERRED STOCK RECORD DATE. Each Person in whose name any
certificate for Preferred Stock is issued upon the exercise of Rights shall for
all purposes be deemed to have become the holder of record of the shares of
Preferred Stock 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 Stock 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,



                                       - 10 -
<Page>

the next succeeding Business Day on which such transfer books 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 Stock 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 AND KIND OF SHARES
AND NUMBER OF RIGHTS. The Purchase Price, the number of shares of Preferred
Stock 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.

          (a) (i) In the event the Company shall at any time after the date of
this Agreement (A) declare a dividend on the Preferred Stock payable in shares
of Preferred Stock, (B) subdivide the outstanding shares of Preferred Stock, (C)
combine the outstanding shares of Preferred Stock into a smaller number of
shares of Preferred Stock or (D) issue any shares of its capital stock in a
reclassification of the shares of Preferred Stock (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, as the case may be, 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 Stock 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; PROVIDED, HOWEVER, that
in no event shall the consideration to be paid upon the exercise of one Right be
less than the aggregate par value of the shares of capital stock of the Company
issuable upon exercise of one Right.

          (ii) Subject to Section 24 of this Rights Agreement and except as
     otherwise provided in this Section 11(a)(ii) and Section 11(a)(iii), in the
     event that 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, in accordance with the
     terms of this Rights Agreement and in lieu of shares of Preferred Stock,
     such number of shares of Common Stock (or at the option of the Company,
     such number of one one-thousandths of a share of Preferred Stock) as shall
     equal the result obtained by (x) multiplying the then-current Purchase
     Price by the number of one one-thousandths of a share of Preferred Stock
     for which a Right is then exercisable and dividing that product by (y) 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; PROVIDED, HOWEVER, that the Purchase Price (as so adjusted)
     and the number of shares of Common Stock so receivable upon exercise of a
     Right shall thereafter be subject to further adjustment as appropriate in
     accordance with Section 11(f) hereof. Notwithstanding anything in this
     Rights 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 (x) any Acquiring Person (or any
     Affiliate or Associate of any Acquiring Person), (y) a transferee of any
     Acquiring


                                       - 11 -
<Page>
     Person (or any such Affiliate or Associate) who becomes a transferee after
     the invalidation time or (z) 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 (I) 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, written or otherwise, regarding the transferred Rights or
     (II) a transfer that the Board of Directors has determined is part of a
     continuing agreement, plan, arrangement or understanding, written or
     otherwise, 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 Rights Agreement. The Company shall use all reasonable
     efforts to ensure that the provisions of this Section 11(a)(ii) are
     complied with, but shall have no liability to any holder of Right
     Certificates or other Person as a result of its failure to make any
     determinations with respect to an Acquiring Person or its Affiliates,
     Associates or transferees hereunder. From and after the invalidation time,
     no Right 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 shall be
     cancelled. 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) The Company may at its option substitute for a share of Common
     Stock issuable upon the exercise of Rights in accordance with the foregoing
     subparagraph (ii) such number or fractions of shares of Preferred Stock
     having an aggregate current market value equal to the current per share
     market price of a share of Common Stock. In the event that there shall not
     be sufficient shares of Common Stock issued but not outstanding or
     authorized but unissued (and unreserved) to permit the exercise in full of
     the Rights in accordance with the foregoing subparagraph (ii), the Board of
     Directors shall, with respect to such deficiency, to the extent permitted
     by applicable law and any material agreements then in effect to which the
     Company is a party (A) determine the excess of (x) the value of the shares
     of Common Stock issuable upon the exercise of a Right in accordance with
     the foregoing subparagraph (ii) (the "CURRENT VALUE") over (y) the
     then-current Purchase Price multiplied by the number of one one-thousandths
     of shares of Preferred Stock for which a Right was exercisable immediately
     prior to the time that the Acquiring Person became such (such excess, the
     "SPREAD"), and (B) with respect to each Right (other than Rights which have
     become void pursuant to Section 11(a)(ii)), make adequate provision to
     substitute for the shares of Common Stock issuable in accordance with
     subparagraph (ii) upon exercise of the Right and payment of the applicable
     Purchase Price, (1) cash, (2) a reduction in such Purchase Price, (3)
     shares of Preferred Stock or other equity securities of the Company
     (including, without limitation, shares or fractions of shares of preferred
     stock which, by virtue of having dividend, voting and liquidation rights
     substantially comparable to those of the shares of Common Stock, are deemed
     in good faith by the Board of Directors to have substantially the same
     value as the shares of Common Stock (such shares of preferred stock and
     shares or



                                       - 12 -
<Page>

     fractions of shares of preferred stock are hereinafter referred to as
     "COMMON STOCK EQUIVALENTS")), (4) debt securities of the Company, (5) other
     assets or (6) any combination of the foregoing, having a value which, when
     added to the value of the shares of Common Stock actually issued upon
     exercise of such Right, shall have an aggregate value equal to the Current
     Value (less the amount of any reduction in such Purchase Price), where such
     aggregate value has been determined by the Board of Directors upon the
     advice of a nationally recognized investment banking firm selected in good
     faith by the Board of Directors; PROVIDED, HOWEVER, if the Company shall
     not make adequate provision to deliver value pursuant to clause (B) above
     within thirty (30) days following the date that the Acquiring Person became
     such (the "SECTION 11(a)(ii) TRIGGER DATE"), then the Company shall be
     obligated to deliver, to the extent permitted by applicable law and any
     material agreements then in effect to which the Company is a party, upon
     the surrender for exercise of a Right and without requiring payment of the
     Purchase Price, shares of Common Stock (to the extent available), and then,
     if necessary, such number or fractions of shares of Preferred Stock (to the
     extent available) and then, if necessary, cash, which shares and/or cash
     have an aggregate value equal to the Spread. If within the thirty (30) day
     period referred to above the Board of Directors shall determine in good
     faith that it is likely that sufficient additional shares of Common Stock
     could be authorized for issuance upon exercise in full of the Rights, then,
     if the Board of Directors so elects, such thirty (30) day period may be
     extended to the extent necessary, but not more than ninety (90) days after
     the Section 11(a)(ii) Trigger Date, in order that the Company may seek
     stockholder approval for the authorization of such additional shares (such
     thirty (30) day period, as it may be extended, is hereinafter called the
     "SUBSTITUTION PERIOD"). To the extent that the Company determines that some
     action need be taken pursuant to the second and/or third sentence of this
     Section 11(a)(iii), the Company (x) shall provide, subject to Section
     11(a)(ii) hereof and the last sentence of this Section 11(a)(iii) hereof,
     that such action shall apply uniformly to all outstanding Rights and (y)
     may suspend the exercisability of the Rights until the expiration of the
     Substitution Period in order to seek any authorization of additional shares
     and/or to decide the appropriate form of distribution to be made pursuant
     to such second sentence and to determine the value thereof. In the event of
     any such suspension, the Company shall issue a public announcement stating
     that the exercisability of the Rights has been temporarily suspended, as
     well as a public announcement at such time as the suspension is no longer
     in effect (with prompt written notice of each such announcement to the
     Rights Agent). For purposes of this Section 11(a)(iii), the value of the
     shares of Common Stock shall be the current per share market price (as
     determined pursuant to Section 11(d)(i)) on the Section 11(a)(ii) Trigger
     Date and the per share or fractional value of any Common Stock equivalent
     shall be deemed to equal the current per share market price of the Common
     Stock. The Board of Directors of the Company may, but shall not be required
     to, establish procedures to allocate the right to receive shares of Common
     Stock upon the exercise of the Rights among holders of Rights pursuant to
     this Section 11(a)(iii).

          (b) In case the Company shall fix a record date for the issuance of
rights, options or warrants to all holders of Preferred Stock entitling them
(for a period expiring within 45 calendar days after such record date) to
subscribe for or purchase Preferred Stock (or shares having similar rights,
privileges and preferences as the Preferred Stock ("EQUIVALENT PREFERRED



                                       - 13 -
<Page>

SHARES")) or securities convertible into Preferred Stock or equivalent preferred
shares at a price per share of Preferred Stock or equivalent preferred shares
(or having a conversion price per share, if a security convertible into shares
of Preferred Stock or equivalent preferred shares) less than the then-current
per share market price of the Preferred Stock (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 shares of Preferred Stock and equivalent preferred shares
outstanding on such record date plus the number of shares of Preferred Stock and
equivalent preferred shares which the aggregate offering price of the total
number of such shares so to be offered (and/or the aggregate initial conversion
price of the convertible securities so to be offered) would purchase at such
current market price, and the denominator of which shall be the number of shares
of Preferred Stock and equivalent preferred shares outstanding on such record
date plus the number of additional shares of Preferred Stock and/or equivalent
preferred shares to be offered for subscription or purchase (or into which the
convertible securities so to be offered are initially convertible); PROVIDED,
HOWEVER, that in no event shall the consideration to be paid upon the exercise
of one Right be less than the aggregate par value of the shares of capital stock
of the Company issuable upon exercise of one Right. In case such subscription
price may be paid in a consideration part or all of which shall be in a form
other than cash, the value of such consideration shall be as determined in good
faith by the Board of Directors of the Company, whose determination shall be
described in a statement filed with the Rights Agent and which shall be binding
on the Rights Agent. Shares of Preferred Stock and equivalent preferred shares
owned by or held for the account of the Company shall not be deemed outstanding
for the purpose of any such computation. Such adjustment shall be made
successively whenever such a record date is fixed; and in the event that such
rights, options or warrants are not so issued, the Purchase Price shall be
adjusted to be the Purchase Price which would then be in effect if such record
date had not been fixed.

          (c) In case the Company shall fix a record date for the making of a
distribution to all holders of the Preferred Stock (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 Stock) 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 Stock (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 and
shall be binding on the Rights Agent) of the portion of such assets or evidences
of indebtedness so to be distributed or of such subscription rights or warrants
applicable to one share of Preferred Stock, and the denominator of which shall
be such current per share market price of the Preferred Stock; PROVIDED,
HOWEVER, that in no event shall the consideration to be paid upon the exercise
of one Right be less than the aggregate par value of the shares of capital stock
of the Company to be issued upon exercise of one Right. Such adjustments shall
be made successively whenever such a record date is fixed; and in the event that
such distribution is not so made, the Purchase Price shall again be adjusted to
be the Purchase Price which would then be in effect if such record date had not
been fixed.


                                       - 14 -
<Page>

          (d) (i) 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)(i)) on any date shall be deemed
to be the average of the daily closing prices per share of such Security for the
30 consecutive Trading Days (as such term is hereinafter defined) immediately
prior to 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 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 (w) the principal
consolidated transaction reporting system with respect to securities listed or
admitted to trading on the New York Stock Exchange, Inc. or (x) if the Security
is not listed or admitted to trading on the New York Stock Exchange, Inc., 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 (y) 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, (z) if on any such date the Security is not quoted by any such
organization, the average of the closing bid and asked prices as furnished by a
professional market maker making a market in the Security selected by the Board
of Directors of the Company. The term "TRADING DAY" shall mean a day on which
the principal national securities exchange on which the Security is listed or
admitted to trading is open for the transaction of business or, if the Security
is not listed or admitted to trading on any national securities exchange, a
Business Day.

          (ii) For the purpose of any computation hereunder, if the Preferred
     Stock is publicly traded, the "current per share market price" of the
     Preferred Stock shall be determined in accordance with the method set forth
     in Section 11(d)(i). If the Preferred Stock is not publicly traded but the
     Common Stock is publicly traded, the "current per share market price" of
     the Preferred Stock shall be conclusively deemed to be the current per
     share market price of the Common Stock, as determined pursuant to Section
     11(d)(i), multiplied by one thousand (appropriately adjusted to reflect any
     stock split, stock dividend or similar transaction occurring after the date
     hereof). If neither the Common Stock nor the Preferred Stock is 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 and shall be binding on 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 not required to be made by reason
of this Section 11(e) 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 ten-thousandth of a share of


                                       - 15 -
<Page>

Preferred Stock or share of Common Stock or other share or security as the case
may be. Notwithstanding the first sentence of this Section 11(e), any adjustment
required by this Section 11 shall be made no later than the earlier of (i) three
years from the date of the transaction which requires such adjustment or (ii)
the Expiration Date.

          (f) If as a result of an adjustment made pursuant to Section 11(a)
hereof, the holder of any Right thereafter exercised shall become entitled to
receive any shares of capital stock of the Company other than the Preferred
Stock, thereafter the Purchase Price and 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 Stock contained in Section 11(a),
11(b), 11(c), 11(e), 11(h), 11(i) and 11(m) and the provisions of Sections 7, 9,
10, 13 and 14 hereof with respect to the Preferred Stock 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-thousandths of a
share of Preferred Stock purchasable from time to time hereunder upon exercise
of the Rights, all subject to further adjustment as provided herein.

          (h) Unless the Company shall have exercised its election as provided
in Section 11(i), upon each adjustment of the Purchase Price as a result of the
calculations made in Section 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-thousandths of
a share of Preferred Stock (calculated to the nearest one ten-thousandth of a
share of Preferred Stock) obtained by (i) multiplying (x) the number of one
one-thousandths of a share of Preferred Stock purchasable upon the exercise of a
Right immediately prior to such adjustment by (y) the Purchase Price in effect
immediately prior to such adjustment of the Purchase Price and (ii) dividing the
product so obtained by the Purchase Price in effect immediately after such
adjustment of the Purchase Price.

          (i) The Company may elect on or after the date of any adjustment of
the Purchase Price pursuant to Sections 11(b) or 11(c) hereof to adjust the
number of Rights, in substitution for any adjustment in the number of one
one-thousandths of a share of Preferred Stock 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-thousandths of a share of
Preferred Stock for which a Right was exercisable immediately prior to such
adjustment. Each Right held of record prior to such adjustment of the number of
Rights shall become that number of Rights (calculated to the nearest one
ten-thousandth) obtained by dividing the Purchase Price in effect immediately
prior to adjustment of the Purchase Price by the Purchase Price in effect
immediately after adjustment of the Purchase Price. The Company shall make a
public announcement of its election to adjust the number of Rights, indicating
the record date for the adjustment, and, if known at the time, the amount of the
adjustment to be made, and shall promptly give the Rights Agent a copy of such
announcement.. 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



                                       - 16 -
<Page>

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 as a result of 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-thousandths of a share of Preferred Stock 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-thousandths of a share of Preferred Stock 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 the then par value, if any, of the shares of Preferred
Stock or other 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 shares of Preferred Stock 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 to defer (and shall give prompt written
notice of such election to the Rights Agent) until the occurrence of such event
the issuing to the holder of any Right exercised after such record date the
Preferred Stock, Common Stock or other capital stock or securities of the
Company, if any, issuable upon such exercise over and above the Preferred Stock,
Common Stock or 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) Notwithstanding anything in this Section 11 to the contrary, the
Company shall be entitled to make such adjustments 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 Stock, issuance
(wholly for cash) of any shares of Preferred Stock at less than the current
market price, issuance (wholly for cash) of Preferred Stock or securities which
by their terms are convertible into or exchangeable for Preferred Stock,
dividends on Preferred Stock payable in shares of Preferred Stock or issuance of
rights, options or warrants referred to hereinabove in Section 11(b), hereafter
made by the Company to holders of its Preferred Stock shall not be taxable to
such stockholders.


                                       - 17 -
<Page>

          (n) Notwithstanding anything in this Rights Agreement to the contrary,
in the event that at any time after the date of this Rights 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, the number of
Rights associated with each share of Common Stock then outstanding, or issued or
delivered thereafter, shall be proportionately adjusted so that the number of
Rights thereafter associated with each share of Common Stock following any such
event shall equal the result obtained by multiplying the number of Rights
associated with each share of Common Stock immediately prior to such event by a
fraction the numerator of which shall be the total number of shares of Common
Stock outstanding immediately prior to the occurrence of the event and the
denominator of which shall be the total number of shares of Common Stock
outstanding immediately following the occurrence of such event.

          (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 eliminate the benefits intended to be afforded by the
Rights.

          Section 12. CERTIFICATE OF ADJUSTED PURCHASE PRICE OR NUMBER OF
SHARES. Whenever an adjustment is made as provided in Section 11 and/or 13
hereof, the Company shall promptly (a) prepare a certificate setting forth such
adjustment, and a brief statement of the facts and computations accounting for
such adjustment, (b) file with the Rights Agent and with each transfer agent for
the Common Stock or the Preferred Stock 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 shll have no duty with respect to and shall not
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 merge with and into
any other Person, (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 merger and, in connection with such
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, or (iii) 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 to 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), then, and in each such case, proper provision shall be made so
that:

          (A) 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



                                       - 18 -
<Page>

at a price equal to the then-current Purchase Price multiplied by the number of
one one-thousandths of a share of Preferred Stock for which a Right was
exercisable (whether or not such Right was then exercisable) immediately prior
to the time that any Person first became an Acquiring Person (each as
subsequently adjusted thereafter pursuant to Section 11(a)(i), 11(b), 11(c),
11(h), 11(i) and 11(m)), in accordance with the terms of this Rights Agreement
and in lieu of Preferred Stock, such number of validly issued, fully paid and
non-assessable and freely tradeable shares of Common Stock of the Principal
Party (as defined below) not subject to any liens, encumbrances, rights of first
refusal or other adverse claims, as shall be equal to the result obtained by (1)
multiplying the then-current Purchase Price by the number of one one-thousandths
of a share of Preferred Stock for which a Right was exercisable immediately
prior to the time that any Person first became an Acquiring Person (as
subsequently adjusted thereafter pursuant to Section 11(a)(i), 11(b), 11(c),
11(h), 11(i) and 11(m)) and (2) 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)(i) hereof) on the date of consummation of such
consolidation, merger, sale or transfer; PROVIDED 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 Rights Agreement to reflect any events occurring in respect of such
Principal Party after the date of such consolidation, merger, sale or transfer;

          (B) 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 Rights Agreement;

          (C) the term "Company" shall thereafter be deemed to refer to such
Principal Party; and

          (D) such Principal Party shall take such steps (including, but not
limited to, the reservation of a sufficient number of its shares of its Common
Stock) 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) or (ii) of the
     first sentence of Section 13(a) hereof: (A) the Person that is the issuer
     of the securities into which the


                                       - 19 -
<Page>

     shares of Common Stock are converted in such merger or consolidation, or,
     if there is more than one such issuer, the issuer of the shares of Common
     Stock of which have the greatest aggregate market value of shares
     outstanding, or (B) if no securities are so issued, (x) 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
     (y) 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 (z) the Person resulting from the consolidation; and

          (ii) in the case of any transaction described in (iii) 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 is the issuer of Common Stock having the greatest aggregate
     market value of shares outstanding;

PROVIDED, HOWEVER, that in any such case described in the foregoing clause
(b)(i) or (b)(ii), 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, then (1) 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,
and the Common Stocks of all of such persons have 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 of shares outstanding,
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 consolidation, merger, sale
or transfer referred to in Section 13(a) hereof 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, sale or transfer of assets shall not result in
a default by the Principal Party under this Rights 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



                                       - 20 -
<Page>

     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 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 New York Stock Exchange, Inc.
     or on another 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 New York Stock Exchange, Inc. or such
     securities exchange, or, if the Common Stock of the Principal Party shall
     not be listed or admitted to trading on the New York Stock Exchange 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

          (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 has a provision in any of its
authorized securities or in its certificate of incorporation or by-laws or other
instrument governing its 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 or Common Stock equivalents 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
or Common Stock equivalents 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 Sections 13(a)(i)-(iii) hereof if (x) at the time of or
immediately after such consolidation, merger, 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, (y)
prior to, simultaneously with or immediately after such consolidation, merger,
sale, transfer or other transaction, the stockholders



                                       - 21 -
<Page>

of the Person who constitutes, or would constitute, the Principal Party for
purposes of Section 13(b) hereof shall have received a distribution of Rights
previously owned by such Person or any of its Affiliates or Associates or (z)
the form or nature of organization of the Principal Party would preclude or
limit the exercisability of the Rights.

          Section 14. FRACTIONAL RIGHTS AND FRACTIONAL SHARES. (a) The Company
shall not be required to issue fractions of Rights (except prior to the
Distribution Date in accordance with Section 11(n) hereof) or to distribute
Right Certificates which evidence fractional Rights. In lieu of such fractional
Rights, there shall be paid to the registered holders of the Right Certificates
with regard to which such fractional Rights would otherwise be issuable, an
amount in cash equal to the same fraction of the current market value of a whole
Right. For the purposes of this Section 14(a), the current market value of a
whole Right shall be the closing price of the Rights for the Trading Day
immediately prior to the date on which such fractional Rights would have been
otherwise issuable. The closing price for any day shall be the last sale price,
regular way, or, in case no such sale takes place on such day, the average of
the closing bid and asked prices, regular way, in either case as reported by (w)
the principal consolidated transaction reporting system with respect to
securities listed or admitted to trading on the New York Stock Exchange, Inc.
or, (x) if the Rights are not listed or admitted to trading on the New York
Stock Exchange, Inc., 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,
(y) 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, (z) 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 shares of
Preferred Stock (other than fractions which are integral multiples of one
one-thousandth of a share of Preferred Stock) upon exercise of the Rights or to
distribute certificates which evidence fractional shares of Preferred Stock
(other than fractions which are integral multiples of one one-thousandth of a
share of Preferred Stock). Interests in fractions of Preferred Stock in integral
multiples of one one-thousandth of a share of Preferred Stock 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;
PROVIDED, that 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 Stock represented by such
depositary receipts. In lieu of fractional shares of Preferred Stock that are
not integral multiples of one one-thousandth of a share of Preferred Stock, the
Company shall pay to the registered holders of Right Certificates at the time
such Rights are exercised for shares of Preferred Stock as herein provided an
amount in cash equal to the same fraction of the current market value of one
share of Preferred Stock. For the purposes of this Section 14(b), the current
market value of a share of Preferred Stock shall be the closing price of a share
of Preferred Stock (as determined pursuant to Section 11(d)(ii) hereof) for the
Trading Day immediately prior to the date of such exercise.


                                       - 22 -
<Page>

          (c) The Company shall not be required to issue fractions of shares of
Common Stock or to distribute certificates which evidence fractional shares of
Common Stock upon the exercise or exchange of Rights. In lieu of such fractional
shares of Common Stock, the Company shall pay to the registered holders of the
Right Certificates at the time such Rights are exercised or exchanged for shares
of Common Stock as herein provided an amount in cash equal to the same fraction
of the current market value of a whole share of Common Stock (as determined in
accordance with Section 11(d)(i) hereof) for the Trading Day immediately prior
to the date of such exercise or exchange.

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

          (e) Whenever a payment for fractional Rights or fractional shares is
to be made by the Rights Agent, the Company shall (i) promptly prepare and
deliver to the Rights Agent a certificate setting forth in reasonable detail the
facts related to such payments and the prices and/or formulas utilized in
calculating such payments, and (ii) provide sufficient monies to the Rights
Agent in the form of fully collected funds to make such payments. The Rights
Agent shall be fully protected in relying upon such a certificate and shall have
no duty with respect to, and shall not be deemed to have knowledge of any
payment for fractional Rights or fractional shares unless and until the Rights
Agent shall have received such a certificate and sufficient monies.

          Section 15. RIGHTS OF ACTION. All rights of action in respect of this
Rights 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 such holder's own behalf and for
such holder's 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, such holder's right to exercise the Rights evidenced by such Right
Certificate (or, prior to the Distribution Date, such Common Stock) in the
manner provided in such Right Certificate and in this Rights 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 Rights 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 Rights 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:

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



                                       - 23 -
<Page>

          (ii) 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

          (iii) 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) 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, subject to
     Section 7(e) hereof, shall be affected by any notice to the contrary.

          Section 17. RIGHT CERTIFICATE HOLDER NOT DEEMED A STOCKHOLDER. 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 Stock or any
other securities of the Company which may at any time be issuable on the
exercise or exchange 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 stockholder of
the Company or any right to vote for the election of directors or upon any
matter submitted to stockholders at any meeting thereof, or to give or withhold
consent to any corporate action, or to receive notice of meetings or other
actions affecting stockholders (except as provided in this Rights Agreement), or
to receive dividends or subscription rights, or otherwise, until the Rights
evidenced by such Right Certificate shall have been exercised or exchanged in
accordance with the provisions hereof.

          Section 18. CONCERNING THE RIGHTS AGENT. (a) The Company agrees to pay
to the Rights Agent reasonable compensation for all services rendered by it
hereunder and, from time to time, on demand of the Rights Agent, its reasonable
expenses and counsel fees and other disbursements incurred in the preparation,
delivery, administration, execution and amendment of this Rights Agreement and
the exercise and performance of its duties hereunder. The Company also agrees to
indemnify the Rights Agent for, and to hold it harmless against, any loss,
liability, damage, judgment, fine, penalty, claim, demand, settlement, cost or
expense, incurred without gross negligence, bad faith or willful misconduct (as
determined by a court of competent jurisdiction in a final and non-appealable
decision or as otherwise agreed in writing by the affected parties) 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 Rights
Agreement, including, without limitation, the costs and expenses of defending
against any claim of liability arising therefrom, directly or indirectly. The
costs and expenses incurred in enforcing this right of indemnification shall be
paid by the Company unless the Rights Agent is not entitled to indemnification
due to the Rights Agent's gross negligence, bad faith or willful misconduct (as
determined by a court of competent jurisdiction in a final and non-appealable
decision or as otherwise agreed in writing by the affected parties). The
provisions of this Section 18 and 20 below shall survive the termination of this
Agreement, the exercise or expiration of the Rights and the resignation or
removal of the Rights Agent.

          (b) The Rights Agent shall be authorized and protected and shall incur
no liability for, or in respect of any action taken, suffered or omitted by it
in connection with, its acceptance



                                       - 24 -
<Page>

and administration of this Rights Agreement in reliance upon any Right
Certificate or certificate for the Preferred Stock 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 reasonably 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 knowledge of any event of which it was supposed to receive notice
thereof hereunder, and the Rights Agent shall be fully protected and shall incur
no liability for failing to take any action in connection therewith, unless and
until it has received such notice in writing.

          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 business of the Rights Agent
or any successor Rights Agent, shall be the successor to the Rights Agent under
this Rights Agreement without the execution or filing of any paper or any
further act on the part of any of the parties hereto; PROVIDED, that such 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 Rights Agreement, any of the Right
Certificates shall have been countersigned but not delivered, 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 such successor Rights Agent; and in
all such cases such Right Certificates shall have the full force provided in the
Right Certificates and in this Rights 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 Rights Agreement.

          Section 20. DUTIES OF RIGHTS AGENT. The Rights Agent undertakes only
the duties and obligations imposed by this Rights Agreement (and no implied
duties and obligations) 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 (who may be legal
counsel for the Company), and the opinion of such counsel shall be full and
complete authorization and protection to the Rights Agent and the Rights Agent
shall incur no liability for, or in respect of, any action taken, suffered or
omitted by it in accordance with such opinion.



                                       - 25 -
<Page>

          (b) Whenever in the performance of its duties under this Rights
Agreement the Rights Agent shall deem it necessary or desirable that any fact or
matter be proved or established by the Company prior to taking, suffering or
omitting to take 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
Chief Executive Officer, President, any Vice President, the Treasurer or the
Secretary of the Company (each, an "AUTHORIZED OFFICER") and delivered to the
Rights Agent; and such certificate shall be full authorization and protection to
the Rights Agent for any action taken, suffered or omitted by it under the
provisions of this Rights 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 wilful misconduct
(as determined by a court of competent jurisdiction in a final and
non-appealable decision or as otherwise agreed in writing by the affected
parties). Anything to the contrary notwithstanding, in no event shall the Rights
Agent be liable for special, punitive, 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. Any liability of the Rights Agent under this Rights Agreement
will be limited to the amount of fees paid by the Company to the Rights Agent.

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

          (e) The Rights Agent shall not be under any responsibility or have any
liability in respect of the validity of this Rights 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 Rights Agreement or in
any Right Certificate; nor shall it be responsible for 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 Stock or other
securities to be issued pursuant to this Rights Agreement or any Right
Certificate or as to whether any shares of Preferred Stock 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 Rights Agreement.



                                       - 26 -
<Page>

          (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 Authorized
Officers, and to apply to such Authorized Officers for advice or instructions in
connection with its duties, and such instructions shall be full authorization
and protection to the Rights Agent, and the Rights Agent shall not be liable for
any action taken, suffered or omitted by it in accordance with instructions of
any such Authorized Officer or for any delay in acting while waiting for those
instructions. Any application by the Rights Agent for written instructions from
the Company may, at the option of the Rights Agent, set forth in writing any
action proposed to be taken or omitted by the Rights Agent under this Rights
Agreement and the date on and/or after which such action shall be taken or such
omission shall be effective. The Rights Agent shall not be liable for any action
taken by, or omission of, the Rights Agent in accordance with a proposal
included in any such application on or after the date specified in such
application (which date shall not be less than five Business Days after the date
any Authorized Officer of the Company actually receives such application, unless
any such Authorized Officer shall have consented in writing to an earlier date)
unless, prior to taking any such action (or the effective date in the case of an
omission), the Rights Agent shall have received written instructions in response
to such application specifying the action to be taken, suffered or omitted.

          (h) The Rights Agent and any stockholder, 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 Rights Agreement. Nothing herein shall preclude the
Rights Agent from acting in any other capacity for the Company or for any other
Person.

          (i) The Rights Agent may execute and exercise any of the rights or
powers hereby vested in it or perform any duty hereunder either itself or by or
through its attorneys or agents, and the Rights Agent shall not be answerable or
accountable for any act, default, neglect or misconduct of any such attorneys or
agents or for any loss to the Company resulting from any such act, default,
neglect or misconduct absent gross negligence, bad faith or willful misconduct
(as determined by a court of competent jurisdiction in a final and
non-appealable decision or as otherwise agreed in writing by the affected
parties) in the selection and continued employment thereof.

          (j) If, with respect to any Right 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) or a transferee thereof,
the Rights Agent shall not take any further action with respect to such
requested exercise or transfer without first consulting with the Company.

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




                                       - 27 -
<Page>

          Section 21. CHANGE OF RIGHTS AGENT. The Rights Agent or any successor
Rights Agent may resign and be discharged from its duties under this Rights
Agreement upon 30 days' notice in writing mailed to the Company and to each
transfer agent of the Common Stock or Preferred Stock by registered or certified
mail, and, following the Distribution Date, to the holders of the Right
Certificates by first-class mail. The Company may remove the Rights Agent or any
successor Rights Agent upon 30 days' notice in writing, mailed to the Rights
Agent or successor Rights Agent, as the case may be, and to each transfer agent
of the Common Stock or Preferred Stock by registered or certified mail, and,
following the Distribution Date, to the holders of the Right Certificates by
first-class mail. If the Rights Agent shall resign or be removed or shall
otherwise become incapable of acting, the Company shall appoint a successor to
the Rights Agent. If the Company shall fail to make such appointment within a
period of 30 days after giving notice of such removal or after it has been
notified in writing of such resignation or incapacity by the resigning or
incapacitated Rights Agent or by the holder of a Right Certificate (who shall,
with such notice, submit his Right Certificate for inspection by the Company),
then the registered holder of any Right Certificate may apply to any court of
competent jurisdiction for the appointment of a new Rights Agent. Any successor
Rights Agent, whether appointed by the Company or by such a court, shall be (A)
a Person organized and doing business under the laws of the United States or any
State thereof, which is authorized under such laws to exercise corporate trust
or stock transfer powers and is subject to supervision or examination by federal
or state authority and which has at the time of its appointment as Rights Agent
a combined capital and surplus of at least $50 million or (B) an affiliate of a
corporation 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 appointment the
Company shall file notice thereof in writing with the predecessor Rights Agent
and each transfer agent of the Common Stock or Preferred Stock, 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 Rights 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 Rights Agreement. In addition, in
connection with the issuance or sale of Common Stock following the Distribution
Date and prior to the 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) 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 Right Certificates representing the appropriate number
of Rights in connection with such issuance or sale.



                                       - 28 -
<Page>

          Section 23. REDEMPTION. (a) The Board of Directors of the Company may,
at any time prior to such time as any Person first becomes an Acquiring Person,
redeem all but not less than all the then-outstanding Rights at a redemption
price of $.01 per Right, appropriately adjusted to reflect any stock split,
stock dividend or similar transaction occurring after the date hereof (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 as determined pursuant to
Section 11(d)(i) hereof) 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 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 effectiveness of such redemption), the Company
shall give prompt written notice of such redemption to the Rights Agent and
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 not become effective or 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 (such amount per Right 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 an Acquiring Person becomes the Beneficial Owner of shares of Common
Stock aggregating 50% or more of the shares of Common Stock then outstanding.
From and after the occurrence of an event specified in Section 13(a) hereof, any
Rights that theretofore have not been exchanged pursuant to this Section 24(a)
shall thereafter be exercisable only in accordance with Section 13 and may not
be exchanged pursuant to this Section 24(a). The exchange of the Rights by the
Board of Directors 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.

          (b) Immediately upon the effectiveness of the action of the Board of
Directors of the Company ordering the exchange of any Rights pursuant to
paragraph (a) of this Section 24



                                       - 29 -
<Page>

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 (with prompt
written 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 all
of the holders of the Rights so exchanged 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) The Company may at its option substitute and, in the event that
there shall not be sufficient shares of Common Stock issued but not outstanding
or authorized but unissued (and unreserved) to permit an exchange of Rights as
contemplated in accordance with this Section 24, the Company shall substitute to
the extent of such insufficiency, for each share of Common Stock that would
otherwise be issuable upon exchange of a Right, a number of shares of Preferred
Stock or fraction thereof (or equivalent preferred shares as such term is
defined in Section 11(b)) such that the current per share market price
(determined pursuant to Section 11(d) hereof) of one share of Preferred Stock
(or equivalent preferred share) multiplied by such number or fraction is equal
to the current per share market price of one share of Common Stock (determined
pursuant to Section 11(d) hereof) as of the date of such exchange.

          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 Stock or to make any other distribution to the holders
of its Preferred Stock (other than a regular quarterly cash dividend), (ii) to
offer to the holders of its Preferred Stock rights or warrants to subscribe for
or to purchase any additional shares of Preferred Stock or shares of stock of
any class or any other securities, rights or options, (iii) to effect any
reclassification of its Preferred Stock (other than a reclassification involving
only the subdivision or combination of outstanding Preferred Stock), (iv) to
effect the liquidation, dissolution or winding up of the Company, or (v) 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 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 or offering of rights or warrants, or the date on
which such liquidation, dissolution, reclassification, subdivision, combination,
consolidation or winding up is to take place and the date of participation
therein by the holders of the Common Stock and/or Preferred Stock, 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 Stock for purposes of such action, and
in the case of any such other action, at least 10



                                       - 30 -
<Page>

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 Stock,
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 the
Rights Agent and 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 Rights
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) or by facsimile transmission as follows:

                  Dade Behring Holdings, Inc.
                  1717 Deerfield Road
                  P.O. Box 778
                  Deerfield, Illinois 60015-0778
                  Attention:  Louise Pearson, General Counsel
                  Facsimile No.: (847) 267-5376

Subject to the provisions of Section 21 hereof, any notice or demand authorized
by this Rights 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) or by facsimile transmission as
follows:

                  Mellon Investor Services LLC
                  150 N. Wacker Drive, Suite 2120
                  Chicago, Illinois 60606
                  Attention: Relationship Manager
                  Facsimile No:  (312) 704-7111

         with a copy to:

                  Mellon Investor Services LLC
                  85 Challenger Road
                  Ridgefield Park, New Jersey 07660
                  Attention:  General Counsel
                  Facsimile No.: (201) 296-4004

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



                                       - 31 -
<Page>

          Section 27. SUPPLEMENTS AND AMENDMENTS. Except as otherwise provided
in this Section 27, for so long as the Rights are then redeemable, the Company
may in its sole and absolute discretion, and the Rights Agent shall if the
Company so directs but subject to the other provisions of this Section,
supplement or amend any provision of this Rights Agreement in any respect
without the approval of any holders of the Rights. At any time when the Rights
are no longer redeemable, except as otherwise provided in this Section 27, the
Company may, and the Rights Agent shall, if the Company so directs but subject
to the other provisions of this Section, supplement or amend this Rights
Agreement without the approval of any holders of Right Certificates in order to
(i) cure any ambiguity, (ii) correct or supplement any provision contained
herein which may be defective or inconsistent with any other provisions herein,
(iii) shorten or lengthen any time period hereunder, or (iv) change or
supplement the provisions hereunder in any manner which the Company may deem
necessary or desirable; PROVIDED, HOWEVER, that no such supplement or amendment
shall adversely affect the interests of the holders of Right Certificates as
such (other than an Acquiring Person or an Affiliate or Associate of an
Acquiring Person), and no such amendment may cause the Rights again to become
redeemable or cause this Rights Agreement again to become amendable other than
in accordance with this sentence. Notwithstanding anything contained in this
Rights Agreement to the contrary, no supplement or amendment shall be made which
decreases the Redemption Price. Upon the delivery of a certificate from an
appropriate officer of the Company which states that the supplement or amendment
is in compliance with the terms of this Section 27 and provided such supplement
or amendment does not change the Rights Agent's rights, immunities, duties or
liabilities, the Rights Agent shall execute such supplement or amendment;
PROVIDED that any supplement or amendment that does not amend Sections 18, 19,
20 or 21 hereof in a manner adverse to the Rights Agent shall become effective
immediately upon execution by the Company, whether or not also executed by the
Rights Agent.

          Section 28. SUCCESSORS. All the covenants and provisions of this
Rights 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 RIGHTS AGREEMENT. Nothing in this Rights
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 Rights Agreement; but this Rights 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. DETERMINATIONS AND ACTIONS BY THE BOARD OF DIRECTORS. The
Board of Directors of the Company shall have the exclusive power and authority
to administer this Rights Agreement and to exercise the rights and powers
specifically granted to the Board of Directors of the Company or to the Company,
or as may be necessary or advisable in the administration of this Rights
Agreement, including, without limitation, the right and power to (i) interpret
the provisions of this Rights Agreement and (ii) make all determinations deemed
necessary or advisable for the administration of this Rights Agreement
(including, without limitation, a determination to redeem or not redeem the
Rights or to amend this Rights Agreement). All such actions, calculations,
interpretations and determinations (including, for



                                       - 32 -
<Page>

purposes of clause (y) below, all omissions with respect to the foregoing) that
are done or made by the Board of Directors of the Company in good faith, shall
(x) be final, conclusive and binding on the Company, the Rights Agent, the
holders of the Rights, as such, and all other parties, and (y) not subject the
Board of Directors to any liability to the holders of the Rights. The Rights
Agent shall always be entitled to assume that the Company's Board of Directors
have acted in good faith and shall be fully protected and incur no liability to
the Company in reliance thereon.

          Section 31. SEVERABILITY. If any term, provision, covenant or
restriction of this Rights Agreement or applicable to this Rights 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 Rights Agreement shall remain in full force and effect and
shall in no way be affected, impaired or invalidated.

          Section 32. GOVERNING LAW. This Rights Agreement and each Right
Certificate issued hereunder shall be deemed to be a contract made under the
laws of the State of Delaware 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 all
provisions regarding the rights, duties, liabilities 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 made and to be performed entirely
within such State.

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

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







                                       - 33 -
<Page>


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


                                                DADE BEHRING HOLDINGS, INC.




Attest: /s/ Louise S. Pearson                   By:  /s/ John M. Duffey
        ---------------------                       -----------------------
                                                Name:  John M. Duffey
                                                Title: Senior Vice President and
                                                       Chief Financial Officer



                                                MELLON INVESTOR SERVICES LLC




Attest:                                         By:  /s/ Georg Drake
         --------------------                       -------------------------
                                                Name:  Georg Drake
                                                Title: Assistant Vice President





<Page>


                                                                       EXHIBIT A



                                      FORM

                                       OF

                           CERTIFICATE OF DESIGNATIONS

                                       OF

                  SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

                                       OF

                           DADE BEHRING HOLDINGS, INC.

                         (Pursuant to Section 151 of the
                General Corporation Law of the State of Delaware)

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

          Dade Behring Holdings, Inc., a corporation organized and existing
under the General Corporation Law of the State of Delaware (the "COMPANY"),
hereby certifies that the following resolution was duly adopted by the Board of
Directors of the Company as required by Section 151 of the General Corporation
Law of the State of Delaware:

          RESOLVED, that pursuant to the authority vested in the Board of
Directors of the Company (hereinafter being referred to as the "BOARD OF
DIRECTORS" or the "BOARD") in accordance with the provisions of the Company's
Amended and Restated Certificate of Incorporation (hereinafter being referred to
as the "CERTIFICATE OF INCORPORATION"), the Board of Directors hereby ratifies
the creation of a series of Preferred Stock, par value $.01 per share, of the
Company, to be designated the "Series A Junior Participating Preferred Stock"
and hereby adopts the resolution establishing the designations, number of
shares, preferences, voting powers and other rights and the restrictions and
limitations thereof, of the shares of such series as set forth below:

          Section 1. DESIGNATION AND AMOUNT. The shares of such series shall be
designated as "Series A Junior Participating Preferred Stock" (the "SERIES A
PREFERRED STOCK") and the number of shares constituting the Series A Preferred
Stock shall be 50,000. Such number of shares may be increased or decreased by
resolution of the Board of Directors; PROVIDED, that no decrease shall reduce
the number of shares of Series A Preferred Stock to a number less than the
number of shares then outstanding plus the number of shares reserved for
issuance upon the exercise of outstanding options, rights or warrants or upon
the conversion of any outstanding securities issued by the Company convertible
into Series A Preferred Stock.

          Section 2. DIVIDENDS AND DISTRIBUTIONS



                                       A-1
<Page>

          (A) Subject to the rights of the holders of any shares of any series
     of Preferred Stock of the Company (the "PREFERRED STOCK") (or any similar
     stock) ranking prior and superior to the Series A Preferred Stock with
     respect to dividends, the holders of shares of Series A Preferred Stock, in
     preference to the holders of Common Stock, par value $.01 per share, of the
     Company (the "COMMON STOCK") and of any other stock of the Company ranking
     junior to the Series A Preferred 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 last day of
     March, June, September and December in each year (each such date being
     referred to herein as a "DIVIDEND PAYMENT DATE"), commencing on the first
     Dividend Payment Date after the first issuance of a share or fraction of a
     share of Series A Preferred Stock (the "ISSUE DATE"), in an amount per
     share (rounded to the nearest cent) equal to the greater of (a) $1 or (b)
     subject to the provision for adjustment hereinafter set forth, 1,000 times
     the aggregate per share amount of all cash dividends, and 1,000 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, declared on the Common Stock since the immediately preceding
     Dividend Payment Date or, with respect to the first Dividend Payment Date,
     since the first issuance of any share or fraction of a share of Series A
     Preferred Stock. In the event the Company shall at any time after the Issue
     Date declare and pay any dividend on the Common Stock payable in shares of
     Common Stock, or effect a subdivision or combination or consolidation of
     the outstanding shares of Common Stock (by reclassification or otherwise
     than by payment of a dividend in shares of Common Stock) into a greater or
     lesser number of shares of Common Stock, then in each such case the amount
     to which holders of shares of Series A Preferred Stock were entitled
     immediately prior to such event under clause (b) of the preceding sentence
     shall be adjusted by multiplying such amount by a fraction, the numerator
     of which is the number of shares of Common Stock outstanding immediately
     after such event and the denominator of which is the number of shares of
     Common Stock that were outstanding immediately prior to such event.

          (B) The Company shall declare a dividend or distribution on the Series
     A Preferred Stock as provided in paragraph (A) of this Section immediately
     after it declares a dividend or distribution on the Common Stock (other
     than a dividend payable in shares of Common Stock); PROVIDED that, in the
     event no dividend or distribution shall have been declared on the Common
     Stock during the period between any Dividend Payment Date and the next
     subsequent Dividend Payment Date, a dividend of $1 per share on the Series
     A Preferred Stock shall nevertheless be payable, when, as and if declared,
     on such subsequent Dividend Payment Date.

          (C) Dividends shall begin to accrue and be cumulative, whether or not
     earned or declared, on outstanding shares of Series A Preferred Stock from
     the Dividend Payment Date next preceding the date of issue of such shares,
     unless the date of issue of such shares is prior to the record date for the
     first Dividend Payment Date, in which case dividends on such shares shall
     begin to accrue from the date of issue of such shares, or unless the date
     of issue is a Dividend Payment Date or is a date after the record date for
     the determination of holders of shares of Series A Preferred Stock entitled
     to receive a quarterly dividend and before such Dividend Payment Date, in
     either of which events


                                       A-2
<Page>

     such dividends shall begin to accrue and be cumulative from such Dividend
     Payment Date. Accrued but unpaid dividends shall not bear interest.
     Dividends paid on the shares of Series A Preferred Stock in an amount less
     than the total amount of such dividends at the time accrued and payable on
     such shares shall be allocated pro rata on a share-by-share basis among all
     such shares at the time outstanding. The Board of Directors may fix a
     record date for the determination of holders of shares of Series A
     Preferred Stock entitled to receive payment of a dividend or distribution
     declared thereon, which record date shall be not more than 60 days prior to
     the date fixed for the payment thereof.

          Section 3. VOTING RIGHTS. The holders of shares of Series A Preferred
Stock shall have the following voting rights:

          (A) Subject to the provision for adjustment hereinafter set forth and
     except as otherwise provided in the Certificate of Incorporation or
     required by law, each share of Series A Preferred Stock shall entitle the
     holder thereof to 1,000 votes on all matters upon which the holders of the
     Common Stock of the Company are entitled to vote. In the event the Company
     shall at any time after the Issue Date declare or pay any dividend on the
     Common Stock payable in shares of Common Stock, or effect a subdivision or
     combination or consolidation of the outstanding shares of Common Stock (by
     reclassification or otherwise than by payment of a dividend in shares of
     Common Stock) into a greater or lesser number of shares of Common Stock,
     then in each such case the number of votes per share to which holders of
     shares of Series A Preferred Stock were entitled immediately prior to such
     event shall be adjusted by multiplying such number by a fraction, the
     numerator of which is the number of shares of Common Stock outstanding
     immediately after such event and the denominator of which is the number of
     shares of Common Stock that were outstanding immediately prior to such
     event.

          (B) Except as otherwise provided herein, in the Certificate of
     Incorporation or in any other Certificate of Designations creating a series
     of Preferred Stock or any similar stock, and except as otherwise required
     by law, the holders of shares of Series A Preferred Stock and the holders
     of shares of Common Stock and any other capital stock of the Company having
     general voting rights shall vote together as one class on all matters
     submitted to a vote of stockholders of the Company.

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

          (D) If, at the time of any annual meeting of stockholders for the
     election of directors, the equivalent of six quarterly dividends (whether
     or not consecutive) payable on any share or shares of Series A Preferred
     Stock are in default, the number of directors constituting the Board of
     Directors of the Company shall be increased by two. In addition to voting
     together with the holders of Common Stock for the election of other
     directors of the Company, the holders of record of the Series A Preferred
     Stock, voting separately as a class to the exclusion of the holders of
     Common Stock, shall be entitled at said meeting of stockholders (and at
     each subsequent annual meeting of stockholders), unless all


                                       A-3
<Page>


     dividends in arrears on the Series A Preferred Stock have been paid or
     declared and set apart for payment prior thereto, to vote for the election
     of two directors of the Company, the holders of any Series A Preferred
     Stock being entitled to cast a number of votes per share of Series A
     Preferred Stock as is specified in paragraph (A) of this Section 3. Each
     such additional director shall serve until the next annual meeting of
     stockholders for the election of directors, or until his successor shall be
     elected and shall qualify, or until his right to hold such office
     terminates pursuant to the provisions of this Section 3(D). Until the
     default in payments of all dividends which permitted the election of said
     directors shall cease to exist, any director who shall have been so elected
     pursuant to the provisions of this Section 3(D) may be removed at any time,
     without cause, only by the affirmative vote of the holders of the shares of
     Series A Preferred Stock at the time entitled to cast a majority of the
     votes entitled to be cast for the election of any such director at a
     special meeting of such holders called for that purpose, and any vacancy
     thereby created may be filled by the vote of such holders. If and when such
     default shall cease to exist, the holders of the Series A Preferred Stock
     shall be divested of the foregoing special voting rights, subject to
     revesting in the event of each and every subsequent like default in
     payments of dividends. Upon the termination of the foregoing special voting
     rights, the terms of office of all persons who may have been elected
     directors pursuant to said special voting rights shall forthwith terminate,
     and the number of directors constituting the Board of Directors shall be
     reduced by two. The voting rights granted by this Section 3(D) shall be in
     addition to any other voting rights granted to the holders of the Series A
     Preferred Stock in this Section 3.

          Section 4. CERTAIN RESTRICTIONS.

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

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

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



                                       A-4
<Page>

          and upon dissolution, liquidation or winding up) to the Series A
          Preferred Stock or rights, warrants or options to acquire such junior
          stock; or

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

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

          Section 5. REACQUIRED SHARES. Any shares of Series A Preferred Stock
purchased or otherwise acquired by the Company in any manner whatsoever shall be
retired and cancelled promptly after the acquisition thereof. All such shares
shall upon their retirement become authorized but unissued shares of Preferred
Stock and may be reissued as part of a new series of Preferred Stock to be
created by resolution or resolutions of the Board of Directors, subject to any
conditions and restrictions on issuance set forth herein.

          Section 6. LIQUIDATION, DISSOLUTION OR WINDING UP. Upon any
liquidation, dissolution or winding up of the Company, no distribution shall be
made (A) to the holders of the Common Stock or of shares of any other stock of
the Company ranking junior, upon liquidation, dissolution or winding up, to the
Series A Preferred Stock unless, prior thereto, the holders of shares of Series
A Preferred Stock shall have received $100 per share, plus an amount equal to
accrued and unpaid dividends and distributions thereon, whether or not earned or
declared, to the date of such payment, provided that the holders of shares of
Series A Preferred Stock shall be entitled to receive an aggregate amount per
share, subject to the provision for adjustment hereinafter set forth, equal to
1,000 times the aggregate amount to be distributed per share to holders of
shares of Common Stock, or (B) to the holders of shares of stock ranking on a
parity upon liquidation, dissolution or winding up with the Series A Preferred
Stock, except distributions made ratably on the Series A Preferred Stock and all
such parity stock in proportion to the total amounts to which the holders of all
such shares are entitled upon such liquidation, dissolution or winding up. In
the event, however, that there are not sufficient assets available to permit
payment in full of the Series A liquidation preference and the liquidation
preferences of all other classes and series of stock of the Company, if any,
that rank on a parity with the Series A Preferred Stock in respect thereof, then
the assets available for such distribution shall be distributed ratably to the
holders of the Series A Preferred Stock and the holders of such parity shares in
the proportion to their respective liquidation preferences. In the event the
Company shall at any time after the Issue Date declare or pay any dividend on
the Common Stock payable in shares of Common Stock, or effect a subdivision or
combination or consolidation of the outstanding shares of Common Stock (by
reclassification or otherwise than by payment of a


                                       A-5
<Page>

dividend in shares of Common Stock) into a greater or lesser number of shares of
Common Stock, then in each such case the aggregate amount to which holders of
shares of Series A Preferred Stock were entitled immediately prior to such event
under the proviso in clause (A) 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.

          Neither the merger or consolidation of the Company into or with
another entity nor the merger or consolidation of any other entity into or with
the Company (nor the sale of all or substantially all of the assets of the
Company) shall be deemed to be a liquidation, dissolution or winding up of the
Company within the meaning of this Section 6.

          Section 7. CONSOLIDATION, MERGER, ETC. In case the Company shall enter
into any consolidation, merger, combination or other transaction in which the
shares of Common Stock are converted into, exchanged for or changed into other
stock or securities, cash and/or any other property, then in any such case each
share of Series A Preferred Stock shall at the same time be similarly converted
into, exchanged for or changed into an amount per share (subject to the
provision for adjustment hereinafter set forth) equal to 1,000 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 converted, exchanged or converted. In the event the Company shall at any time
after the Issue Date declare or pay any dividend on the Common Stock payable in
shares of Common Stock, or effect a subdivision or combination or consolidation
of the outstanding shares of Common Stock (by reclassification or otherwise than
by payment of a dividend in shares of Common Stock) into a greater or lesser
number of shares of Common Stock, then in each such case the amount set forth in
the preceding sentence with respect to the conversion, exchange or change of
shares of Series A Preferred Stock shall be adjusted by multiplying such amount
by a fraction, the numerator of which is the number of shares of Common Stock
outstanding immediately after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

          Section 8. NO REDEMPTION. The shares of Series A Preferred Stock shall
not be redeemable from any holder.

          Section 9. RANK. The Series A Preferred Stock shall rank, with respect
to the payment of dividends and the distribution of assets upon liquidation,
dissolution or winding up of the Company, junior to all other series of
Preferred Stock and senior to the Common Stock.

          Section 10. AMENDMENT. If any proposed amendment to the Certificate of
Incorporation (including this Certificate of Designations) would alter, change
or repeal any of the preferences, powers or special rights given to the Series A
Preferred Stock so as to affect the Series A Preferred Stock adversely, then the
holders of the Series A Preferred Stock shall be entitled to vote separately as
a class upon such amendment, and the affirmative vote of two-thirds of the
outstanding shares of the Series A Preferred Stock, voting separately as a
class, shall be necessary for the adoption thereof, in addition to such other
vote as may be required by the General Corporation Law of the State of Delaware.

                                       A-6
<Page>

          Section 11. FRACTIONAL SHARES. Series A Preferred Stock may be issued
in fractions of a share that shall entitle the holder, in proportion to such
holder's fractional shares, to exercise voting rights, receive dividends,
participate in distributions and to have the benefit of all other rights of
holders of Series A Preferred Stock.







                                       A-7
<Page>



          IN WITNESS WHEREOF, this Certificate of Designations is executed on
behalf of the Company by its ______________ and attested by its Secretary this
__th day of _________ __, 2002.


                                      -----------------------------
                                      Name:
                                      Title:


Attest:



----------------------
Secretary




                                       A-8
<Page>


                                                                       EXHIBIT B

                            FORM OF RIGHT CERTIFICATE




Certificate No. R- ____                                              ___ Rights


         NOT EXERCISABLE AFTER TENTH ANNIVERSARY OF DATE OF RIGHTS AGREEMENT OR
         EARLIER IF REDEMPTION OR EXCHANGE OCCURS. THE RIGHTS ARE SUBJECT TO
         REDEMPTION AT $.01 PER RIGHT AND TO EXCHANGE ON THE TERMS SET FORTH IN
         THE RIGHTS AGREEMENT. UNDER CERTAIN CIRCUMSTANCES, AS SET FORTH IN THE
         RIGHTS AGREEMENT, RIGHTS OWNED BY OR TRANSFERRED TO ANY PERSON WHO IS
         OR 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

                           DADE BEHRING HOLDINGS, INC.

          This certifies that ___________ or registered assigns, is the
registered owner of the number of Rights set forth above, each of which entitles
the owner thereof, subject to the terms, provisions and conditions of the Rights
Agreement, dated as of October 3, 2002 as the same may be amended from time to
time (the "RIGHTS AGREEMENT"), between Dade Behring Holdings, Inc., a Delaware
corporation (the "COMPANY"), and Mellon Investor Services LLC, a New Jersey
limited liability company (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., Chicago, Illinois time, on tenth anniversary
of the date of the Rights Agreement at the office or agency of the Rights Agent
designated for such purpose, or of its successor as Rights Agent, one
one-thousandth of a fully paid non-assessable share of Series A Junior
Participating Preferred Stock, par value $.01 per share (the "PREFERRED STOCK"),
of the Company, at a purchase price of $80.00 per one one-thousandth of a share
of Preferred Stock (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-thousandths 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-thousandths 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

                                       B-1
<Page>

reference and made a part hereof and to which Rights Agreement reference is
hereby made for a full description of the rights, limitations of rights,
obligations, duties and immunities hereunder of the Rights Agent, the Company
and the holders of the Right Certificates. Copies of the Rights Agreement are on
file at the principal executive offices of the Company. 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.

          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 $.01 per Right or (ii) may be exchanged in whole or in part for shares
of Preferred Stock or shares of the Company's Common Stock, par value $.01 per
share.

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

          No holder of this Right Certificate, 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 or exchange 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 stockholder of the Company or any right to vote for
the election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (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 or exchanged 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>


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

ATTEST:                                            DADE BEHRING HOLDINGS, INC.



By:  _________________________                     By:   ______________________






Countersigned:


_____________________________,
as Rights Agent



By:  _________________________
     Authorized Signatory




                                       B-3
<Page>


                    Form of Reverse Side of Right Certificate

                               FORM OF ASSIGNMENT

                (TO BE EXECUTED BY THE REGISTERED HOLDER IF SUCH
                HOLDER DESIRES TO TRANSFER THE RIGHT CERTIFICATE)


          FOR VALUE RECEIVED _________________________ hereby sells, assigns and
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 a bank, trust company, broker, dealer
or other eligible institution participating in a recognized signature guarantee
medallion program.

          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 sold, assigned or transferred to, an
Acquiring Person or an Affiliate or Associate thereof (as defined in the Rights
Agreement).

                                                  _____________________________
                                                            Signature


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


                                       B-4
<Page>


             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 the Rights Agent:

          The undersigned hereby irrevocably elects to exercise ________________
Rights represented by this Right Certificate to purchase the
shares of Preferred Stock (or 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 delivered 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 a bank, trust company, broker, dealer
or other eligible institution participating in a recognized signature guarantee
medallion program.

          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 sold, assigned or transferred to, an
Acquiring Person or an Affiliate or Associate thereof (as defined in the Rights
Agreement).

                                                 _______________________________
                                                            Signature

                                       B-5

<Page>


             Form of Reverse Side of Right Certificate -- CONTINUED


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

                                     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>


                                                                      EXHIBIT C

          UNDER CERTAIN CIRCUMSTANCES, AS SET FORTH IN THE RIGHTS AGREEMENT,
          RIGHTS OWNED BY OR TRANSFERRED TO ANY PERSON WHO IS OR 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
                            Shares of Preferred Stock

          The Board of Directors of Dade Behring Holdings, Inc. (the "COMPANY")
ratified the declaration of a dividend of one preferred share purchase right (a
"RIGHT") for each outstanding share of common stock, par value $.01 per share,
of the Company (the "COMMON STOCK"). The dividend is payable on October 3, 2002
(the "RECORD DATE") to the stockholders of record on that date. Each Right
entitles the registered holder to purchase from the Company one one-thousandth
of a share of Series A Junior Participating Preferred Stock, par value $.01 per
share (the "PREFERRED STOCK") of the Company at a price of $80.00 per one
one-thousandth of a share of Preferred Stock (as the same may be adjusted, the
"PURCHASE PRICE"). The description and terms of the Rights are set forth in a
Rights Agreement dated as of October 3, 2002 (as the same may be amended from
time to time, the "RIGHTS AGREEMENT"), between the Company and Mellon Investor
Services LLC, as Rights Agent (the "RIGHTS AGENT").

          Until the close of business on the earlier of (i) the tenth day after
the first date of a public announcement 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 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 or group of affiliated persons becomes an
Acquiring Person) after the date of commencement of, or the first public
announcement of an intention to commence, 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 (the earlier of
such dates being called the "DISTRIBUTION DATE"), the Rights will be evidenced
by the Common Stock certificates or by a current ownership statement issued with
respect to uncertificated shares of Common Stock in lieu of such a certificate
(an "Ownership Statement"). The Rights Agreement does not restrict any person
who beneficially owns 15% or more of the Common Stock as of the date of the
Rights Agreement so long as such person does not become the beneficial owner of
additional shares of Common Stock and, upon becoming the beneficial owner of
such additional shares, such person is still (or again becomes) the beneficial
owner of 15% or more of the shares of Common Stock then outstanding.

          The Rights Agreement provides that, until the Distribution Date (or
earlier redemption or expiration of the Rights), the Rights will be transferable
only in connection with the transfer of Common Stock. Until the Distribution
Date (or earlier redemption or expiration of the Rights), the surrender for
transfer of any certificates for shares of Common Stock, or the transfer of any
shares of Common Stock represented by an Ownership Statement, outstanding as of
the Record Date, even without a notation incorporating the Rights Agreement by
reference or a copy of this Summary of Rights, will also constitute the transfer
of the Rights associated with the shares of Common Stock represented by such
certificate or Ownership Statement. As soon as practicable following the
Distribution Date, separate certificates evidencing the Rights ("RIGHT


                                      C-1

<Page>

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 tenth anniversary of the date of the Rights Agreement (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).

          The Rights are also subject to adjustment in the event of 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, when, as and
if declared, to a minimum preferential quarterly dividend payment of the greater
of (a) $1 per share and (b) an amount equal to 1,000 times the dividend declared
per share of Common Stock. In the event of liquidation, dissolution or winding
up of the Company, the holders of the Preferred Stock will be entitled to a
minimum preferential liquidation payment of $100 per share (plus any accrued but
unpaid dividends) but will be entitled to an aggregate 1,000 times the payment
made per share of Common Stock. Each share of Preferred Stock will have 1,000
votes, voting together with the Common Stock. Finally, in the event of any
merger, consolidation or other transaction in which shares of Common Stock are
converted or exchanged, each share of Preferred Stock will be entitled to
receive 1,000 times the amount received per share of Common Stock. These rights
are protected by customary antidilution provisions.

          Because of the nature of the Preferred Stock's dividend, liquidation
and voting rights, the value of the one one-thousandth interest in a share of
Preferred Stock purchasable upon exercise of each Right should approximate the
value of one share 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 and payment
of the Purchase Price, that number of shares of Common Stock having a market
value of two times the Purchase Price.


                                       C-2
<Page>

          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 thereof 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 (or
its parent), which number of shares at the time of such transaction will have a
market value of two times the Purchase Price.

          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,
or a fractional share of Preferred Stock (or of a share of a similar class or
series of the Company's preferred stock having similar rights, preferences and
privileges) of equivalent value, per Right (subject to adjustment).

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

          At any time prior to the time 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 $.01 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 the Rights are then redeemable, the Company may, except
with respect to the Redemption Price, amend the Rights Agreement in any manner.
After the Rights are no longer redeemable, the Company may, except with respect
to the Redemption Price, amend the Rights Agreement in any manner that does not
adversely affect the interests of holders of the Rights.

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

          A copy of the Rights Agreement is available free of charge from the
Company. 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-3