MIRAVANT MEDICAL TECHNOLOGIES
8-A12G, EX-4, 2000-07-18
PHARMACEUTICAL PREPARATIONS
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                          Miravant Medical Technologies

                                       and

                        U.S. Stock Transfer Corporation,

                                 as Rights Agent

                        PREFERRED STOCK RIGHTS AGREEMENT

                            Dated as of July 13, 2000


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                                TABLE OF CONTENTS
<TABLE>
<CAPTION>
<S>                                                                                                              <C>


                                                                                                                     Page

Section 1.        Certain Definitions.................................................................................1


Section 2.        Appointment of Rights Agent.........................................................................7


Section 3.        Issuance of Rights Certificates.....................................................................7


Section 4.        Form of Rights Certificates.........................................................................9


Section 5.        Countersignature and Registration...................................................................9


Section 6.        Transfer, Split Up, Combination and Exchange of Rights Certificates; Mutilated, Destroyed, Lost or
                  Stolen Rights Certificates.........................................................................10


Section 7.        Exercise of Rights; Exercise Price; Expiration Date of Rights......................................11


Section 8.        Cancellation and Destruction of Rights Certificates................................................13


Section 9.        Reservation and Availability of Preferred Shares...................................................13


Section 10.       Record Date........................................................................................14


Section 11.       Adjustment of Exercise Price, Number of Shares or Number of Rights.................................15


Section 12.       Certificate of Adjusted Exercise Price or Number of Shares.........................................21


Section 13.       Consolidation, Merger or Sale or Transfer of Assets or Earning Power...............................21


Section 14.       Fractional Rights and Fractional Shares............................................................25


Section 15.       Rights of Action...................................................................................26


Section 16.       Agreement of Rights Holders........................................................................26


Section 17.       Rights Certificate Holder Not Deemed a Stockholder.................................................27


Section 18.       Concerning the Rights Agent........................................................................27


Section 19.       Merger or Consolidation or Change of Name of Rights Agent..........................................27


Section 20.       Duties of Rights Agent.............................................................................28


Section 21.       Change of Rights Agent.............................................................................30


Section 22.       Issuance of New Rights Certificates................................................................31


Section 23.       Redemption.........................................................................................31


Section 24.       Exchange...........................................................................................32


Section 25.       Notice of Certain Events...........................................................................34


Section 26.       Section Notices....................................................................................34


Section 27.       Supplements and Amendments.........................................................................35


Section 28.       Successors.........................................................................................36


Section 29.       Determinations and Actions by the Board of Directors, etc..........................................36


Section 30.       Benefits of this Agreement.........................................................................36


Section 31.       Severability.......................................................................................36


Section 32.       Governing Law......................................................................................37


Section 33.       Counterparts.......................................................................................37


Section 34.       Descriptive Headings...............................................................................37
</TABLE>


EXHIBITS

Exhibit A.........Form of Certificate of Designation

Exhibit B.........Form of Rights Certificate

Exhibit C.........Summary of Rights


<PAGE>



                        PREFERRED STOCK RIGHTS AGREEMENT

     This  Preferred  Stock  Rights  Agreement,  is dated  as of July 13,  2000,
between Miravant Medical Technologies,  a Delaware  corporation,  and U.S. Stock
Transfer Corporation.

     On July 13, 2000 (the "Rights  Dividend  Declaration  Date"),  the Board of
Directors of the Company  authorized  and  declared a dividend of one  Preferred
Share Purchase Right (a "Right") for each Common Share (as hereinafter  defined)
of the Company outstanding as of the Close of Business (as hereinafter  defined)
on July 31,  2000 (the  "Record  Date"),  each Right  representing  the right to
purchase one one-thousandth  (0.001) of a share of Series B Junior Participating
Preferred  Stock (as such number may be adjusted  pursuant to the  provisions of
this Agreement),  having the rights, preferences and privileges set forth in the
form of  Certificate of  Designation  of Rights,  Preferences  and Privileges of
Series B Junior Participating Preferred Stock attached hereto as Exhibit A, upon
the terms and subject to the conditions herein set forth, and further authorized
and directed the issuance of one Right (as such number may be adjusted  pursuant
to the  provisions  of this  Agreement)  with  respect to each Common Share 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), and in certain circumstances after the Distribution Date.

     NOW, THEREFORE,  in consideration of the promises and the mutual agreements
herein set forth, the parties hereby agree as follows:

     Section 1.........Certain  Definitions. For purposes of this Agreement, the
following terms have the meanings indicated:

     (a) "Acquiring Person" shall mean any Person,  who or which,  together with
all Affiliates and Associates of such Person,  shall be the Beneficial  Owner of
20% or more of the Common  Shares  then  outstanding,  but shall not include the
Company,  any  Subsidiary  of the Company or any  employee  benefit  plan of the
Company or of any Subsidiary of the Company, or any entity holding Common Shares
for or pursuant to the terms of any such plan. Notwithstanding the foregoing, no
Person shall be deemed to be an Acquiring Person as the result of an acquisition
of  Common  Shares  by the  Company  which,  by  reducing  the  number of shares
outstanding,  increases the proportionate number of shares beneficially owned by
such Person to 20% or more of the Common Shares of the Company then outstanding;
provided,  however, that if a Person shall become the Beneficial Owner of 20% or
more of the Common  Shares of the Company  then  outstanding  by reason of share
purchases by the Company and shall,  after such share  purchases by the Company,
become the  Beneficial  Owner of any  additional  Common  Shares of the  Company
(other than pursuant to a dividend or  distribution  paid or made by the Company
on the  outstanding  Common  Shares in Common  Shares or  pursuant to a split or
subdivision of the outstanding Common Shares),  then such Person shall be deemed
to be an Acquiring  Person  unless upon  becoming the  Beneficial  Owner of such
additional  Common Shares of the Company such Person does not  beneficially  own
20%  or  more  of  the  Common   Shares  of  the   Company   then   outstanding.
Notwithstanding  the  foregoing,   (i)  if  the  Company's  Board  of  Directors
determines  in good  faith that a Person who would  otherwise  be an  "Acquiring
Person," as defined pursuant to the foregoing  provisions of this paragraph (a),
has become such inadvertently (including,  without limitation,  because (A) such
Person was unaware that it beneficially  owned a percentage of the Common Shares
that would otherwise  cause such Person to be an "Acquiring  Person," as defined
pursuant to the foregoing  provisions of this  paragraph (a), or (B) such Person
was aware of the extent of the Common  Shares it  beneficially  owned but had no
actual  knowledge of the  consequences of such  beneficial  ownership under this
Agreement) and without any intention of changing or  influencing  control of the
Company,  and if such Person  divested or divests as promptly as  practicable  a
sufficient  number of Common  Shares so that such  Person  would no longer be an
"Acquiring  Person," as defined  pursuant to the  foregoing  provisions  of this
paragraph  (a),  then such Person shall not be deemed to be or to have become an
"Acquiring  Person" for any purposes of this  Agreement;  and (ii) if, as of the
date  hereof,  any Person is the  Beneficial  Owner of 20% or more of the Common
Shares outstanding, such Person shall not be or become an "Acquiring Person," as
defined  pursuant to the foregoing  provisions of this paragraph (a), unless and
until such time as such Person shall become the  Beneficial  Owner of additional
Common Shares (other than pursuant to a dividend or distribution paid or made by
the Company on the  outstanding  Common Shares in Common Shares or pursuant to a
split or subdivision of the outstanding  Common Shares),  unless,  upon becoming
the Beneficial Owner of such additional  Common Shares,  such Person is not then
the Beneficial Owner of 20% or more of the Common Shares then outstanding.

     (b)  "Adjustment  Fraction"  shall  have the  meaning  set forth in Section
11(a)(i) hereof.

     (c) "Affiliate" and "Associate" shall have the respective meanings ascribed
to such  terms in Rule  12b-2 of the  General  Rules and  Regulations  under the
Exchange Act, as in effect on the date of this Agreement.

     (d) A Person shall be deemed the "Beneficial  Owner" of and shall be deemed
to "beneficially own" any securities:

          (i) which such Person or any of such Person's Affiliates or Associates
     beneficially owns, directly or indirectly, for purposes of Section 13(d) of
     the Exchange Act and Rule 13d-3  thereunder (or any comparable or successor
     law or regulation);

          (ii)  which  such  Person  or  any  of  such  Person's  Affiliates  or
     Associates has (A) the right to acquire  (whether such right is exercisable
     immediately  or only after the passage of time)  pursuant to any agreement,
     arrangement  or  understanding  (other than customary  agreements  with and
     between  underwriters and selling group members with respect to a bona fide
     public offering of securities),  or upon the exercise of conversion rights,
     exchange rights,  rights (other than the Rights),  warrants or options,  or
     otherwise; provided, however, that a Person shall not be deemed pursuant to
     this Section  1(d)(ii)(A) to be the Beneficial Owner of, or to beneficially
     own, (1) securities tendered pursuant to a tender or exchange offer made by
     or on  behalf  of  such  Person  or  any of  such  Person's  Affiliates  or
     Associates  until such  tendered  securities  are  accepted for purchase or
     exchange,  or (2)  securities  which  a  Person  or any  of  such  Person's
     Affiliates  or  Associates  may be  deemed  to have the  right  to  acquire
     pursuant to any merger or other  acquisition  agreement between the Company
     and such Person (or one or more of its  Affiliates or  Associates)  if such
     agreement  has been approved by the Board of Directors of the Company prior
     to there being an Acquiring  Person;  or (B) the right to vote  pursuant to
     any agreement,  arrangement or  understanding;  provided,  however,  that a
     Person shall not be deemed the Beneficial Owner of, or to beneficially own,
     any security under this Section  1(d)(ii)(B) 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  of 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,  whether  or not  in  writing  (other  than
     customary  agreements  with and  between  underwriters  and  selling  group
     members with respect to a bona fide public  offering of securities) for the
     purpose of acquiring, holding, voting (except to the extent contemplated by
     the proviso to Section  1(d)(ii)(B))  or disposing of any securities of the
     Company; provided, however, that in no case shall an officer or director of
     the  Company  be  deemed  (x)  the  Beneficial   Owner  of  any  securities
     beneficially  owned by another officer or director of the Company solely by
     reason of actions  undertaken by such persons in their capacity as officers
     or directors of the Company or (y) the Beneficial  Owner of securities held
     of record by the trustee of any employee benefit plan of the Company or any
     Subsidiary of the Company for the benefit of any employee of the Company or
     any  Subsidiary  of the  Company,  other than the officer or  director,  by
     reason of any  influence  that such  officer or director  may have over the
     voting of the securities held in the plan.

     (e)  "Business  Day" shall mean any day other than a Saturday,  Sunday or a
day on which banking institutions in New York are authorized or obligated by law
or executive order to close.

     (f) "Close of  Business"  on any given date shall mean 5:00 P. M., New York
time, on such date; provided,  however,  that if such date is not a Business Day
it shall mean 5:00 P.M., New York time, on the next succeeding Business Day.

     (g) "Common  Shares" when used with reference to the Company shall mean the
shares of Common Stock of the Company,  par value $0.01 per share. Common Shares
when used with  reference  to any Person  other than the Company  shall mean the
capital stock (or equity  interest) with the greatest voting power of such other
Person or, if such other Person is a Subsidiary of another Person, the Person or
Persons which ultimately control such first-mentioned Person.

     (h) "Common Stock  Equivalents" shall have the meaning set forth in Section
11(a)(iii) hereof.

(i) "Company" shall mean Miravant Medical Technologies,  a Delaware corporation,
subject to the terms of Section  13(a)(iii)(C)  hereof.

     (j)  "Current Per Share Market  Price" of any  security (a  "Security"  for
purposes  of this  definition),  for all  computations  other  than  those  made
pursuant  to Section  11(a)(iii)  hereof,  shall  mean the  average of the daily
closing  prices  per share of such  Security  for the  thirty  (30)  consecutive
Trading Days  immediately  prior to such date, and for purposes of  computations
made pursuant to Section  11(a)(iii)  hereof, the Current Per Share Market Price
of any  Security  on any date  shall be  deemed to be the  average  of the daily
closing prices per share of such Security for the ten (10)  consecutive  Trading
Days immediately prior to such date; provided,  however,  that in the event that
the Current Per Share Market Price of the Security is determined during a period
following the  announcement  by the issuer of such Security of (i) a dividend or
distribution  on such Security  payable in shares of such Security or securities
convertible   into  such  shares  or  (ii)  any   subdivision,   combination  or
reclassification of such Security, and prior to the expiration of the applicable
thirty (30)  Trading Day or ten (10) Trading Day period,  after the  ex-dividend
date for such dividend or distribution, or the record date for such subdivision,
combination  or  reclassification,  then, and in each such case, the Current Per
Share Market Price shall be appropriately adjusted to reflect the current market
price per share  equivalent  of such  Security.  The closing  price for each day
shall be the last sale price,  regular way, or, in case no such sale takes place
on such day,  the average of the closing bid and asked  prices,  regular way, in
either case as  reported in the  principal  consolidated  transaction  reporting
system with respect to securities  listed or admitted to trading on the New York
Stock  Exchange  or, if the Security is not listed or admitted to trading on the
New York Stock Exchange, as reported in the principal  consolidated  transaction
reporting  system with respect to securities  listed on the  principal  national
securities  exchange on which the  Security is listed or admitted to trading or,
if the Security is not listed or admitted to trading on any national  securities
exchange,  the last sale price or, if such last sale price is not reported,  the
average of the high bid and low asked prices in the over-the-counter  market, as
reported by Nasdaq or such other system then in use, or, if on any such date the
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.  If on any such
date no market maker is making a market in the Security,  the fair value of such
shares on such date as determined in good faith by the Board of Directors of the
Company  shall be used.  If the Preferred  Shares are not publicly  traded,  the
Current Per Share Market  Price of the  Preferred  Shares shall be  conclusively
deemed to be the product of (x) the Current Per Share Market Price of the Common
Shares as determined pursuant to this Section 1(j), as appropriately adjusted to
reflect any stock split, stock dividend or similar  transaction  occurring after
the date hereof, multiplied by (y) 1000. If the Security is not publicly held or
so listed or traded,  Current Per Share  Market  Price shall mean the fair value
per share as  determined in good faith by the Board of Directors of the Company,
whose  determination  shall be  described  in a statement  filed with the Rights
Agent and shall be conclusive for all purposes.

     (k) "Current Value" shall have the meaning set forth in Section  11(a)(iii)
hereof.

     (l) "Distribution Date" shall mean the earlier of (i) the Close of Business
on the  tenth  day (or such  later  date as may be  determined  by action of the
Company's  Board of  Directors)  after the Shares  Acquisition  Date (or, if the
tenth day after the Shares  Acquisition  Date occurs before the Record Date, the
Close of Business on the Record Date) or (ii) the Close of Business on the tenth
Business Day (or such later date as may be determined by action of the Company's
Board of Directors) after the date that a tender or exchange offer by any Person
(other than the Company,  any  Subsidiary of the Company,  any employee  benefit
plan of the Company or of any Subsidiary of the Company, or any Person or entity
organized,  appointed or established by the Company for or pursuant to the terms
of any such plan) is first published or sent or given within the meaning of Rule
14d-2(a)  of the General  Rules and  Regulations  under the  Exchange  Act,  if,
assuming the successful  consummation thereof, such Person would be an Acquiring
Person.

     (m) "Equivalent  Shares" shall mean Preferred Shares and any other class or
series of capital  stock of the Company  which is  entitled to the same  rights,
privileges and preferences as the Preferred Shares.

     (n)  "Exchange  Act" shall mean the  Securities  Exchange  Act of 1934,  as
amended.

     (o)  "Exchange  Ratio"  shall have the meaning  set forth in Section  24(a)
hereof.

     (p)  "Exercise  Price"  shall have the  meaning  set forth in Section  4(a)
hereof.

     (q) "Expiration Date" shall mean the earliest to occur of: (i) the Close of
Business on the Final  Expiration  Date, (ii) the Redemption  Date, or (iii) the
time at which  the Board of  Directors  orders  the  exchange  of the  Rights as
provided in Section 24 hereof.

     (r) "Final Expiration Date" shall mean July 31, 2010.

     (s) "Nasdaq"  shall mean the National  Association  of Securities  Dealers,
Inc. Automated Quotations System.

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

     (u)  "Post-Event  Transferee"  shall have the  meaning set forth in Section
7(e) hereof.

     (v) "Preferred  Shares" shall mean shares of Series B Junior  Participating
Preferred Stock, par value $0.01 per share, of the Company.

     (w) "Pre-Event Transferee" shall have the meaning set forth in Section 7(e)
hereof.

     (x)  "Principal  Party"  shall have the meaning set forth in Section  13(b)
hereof.

     (y) "Record  Date" shall have the meaning set forth in the  recitals at the
beginning of this Agreement.

     (z)  "Redemption  Date" shall have the  meaning set forth in Section  23(a)
hereof.

     (aa)  "Redemption  Price" shall have the meaning set forth in Section 23(a)
hereof.

(bb) "Rights  Agent" shall mean (i) U.S. Stock  Transfer  Corporation.  (ii) its
successor or  replacement  as provided in Sections 19 and 21 hereof or (iii) any
additional  Person  appointed  pursuant  to  Section  2  hereof.

     (cc) "Rights  Certificate"  shall mean a certificate  substantially  in the
form attached hereto as Exhibit B.

     (dd) "Rights Dividend Declaration Date" shall have the meaning set forth in
the recitals at the beginning of this Agreement.

     (ee) "Section  11(a)(ii)  Trigger Date" shall have the meaning set forth in
Section 11(a)(iii) hereof.

     (ff) "Section 13 Event" shall mean any event  described in clause (i), (ii)
or (iii) of Section 13(a) hereof.

     (gg) "Securities Act" shall mean the Securities Act of 1933, as amended.

     (hh)  "Shares  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) under the Exchange Act) by
the Company or an  Acquiring  Person that an  Acquiring  Person has become such;
provided  that,  if such Person is  determined  not to have become an  Acquiring
Person pursuant to Section 1(a) hereof, then no Shares Acquisition Date shall be
deemed to have occurred.

     (ii)  "Spread"  shall  have the  meaning  set forth in  Section  11(a)(iii)
hereof.

     (jj)  "Subsidiary" of any Person shall mean any corporation or other entity
of which an amount of voting  securities  sufficient  to elect a majority of the
directors  or Persons  having  similar  authority of such  corporation  or other
entity is beneficially  owned,  directly or indirectly,  by such Person,  or any
corporation or other entity otherwise controlled by such Person.

     (kk)  "Substitution  Period"  shall have the  meaning  set forth in Section
11(a)(iii) hereof.

     (ll)  "Summary  of  Rights"   shall  mean  a  summary  of  this   Agreement
substantially in the form attached hereto as Exhibit C.

(mm)  "Total  Exercise  Price"  shall have the  meaning  set forth in
Section 4(a) hereof.

     (nn)  "Trading  Day"  shall  mean a day on  which  the  principal  national
securities  exchange  on which a  referenced  security  is listed or admitted to
trading is open for the transaction of business or, if a referenced  security is
not listed or  admitted  to  trading  on any  national  securities  exchange,  a
Business Day.

     (oo) A "Triggering  Event" shall be deemed to have occurred upon any Person
becoming an Acquiring Person.

     Section  2.........Appointment of Rights Agent. The Company hereby appoints
the Rights  Agent to act as agent for the  Company and the holders of the Rights
(who, in accordance with Section 3 hereof,  shall prior to the Distribution Date
also be the  holders of the  Common  Shares)  in  accordance  with the terms and
conditions  hereof,  and the Rights Agent hereby accepts such  appointment.  The
Company  may from  time to time  appoint  such  co-Rights  Agents as it may deem
necessary or desirable,  upon ten (10) days' prior written  notice to the Rights
Agent.  The Rights Agent shall have no duty to supervise,  and shall in no event
be liable for, the acts or omissions of any co-Rights Agent.

     Section 3.........Issuance of Rights Certificates.

     (a) Until the Distribution  Date, (i) the Rights will be evidenced (subject
to the  provisions  of Sections  3(b) and 3(c) hereof) by the  certificates  for
Common Shares registered in the names of the holders thereof (which certificates
shall  also be deemed  to be Rights  Certificates)  and not by  separate  Rights
Certificates  and  (ii)  the  right  to  receive  Rights  Certificates  will  be
transferable  only in connection  with the transfer of Common Shares.  Until the
earlier of the  Distribution  Date or the  Expiration  Date,  the  surrender for
transfer of  certificates  for Common Shares shall also constitute the surrender
for  transfer  of the  Rights  associated  with the  Common  Shares  represented
thereby.  As soon as practicable  after the Distribution  Date, the Company will
prepare and  execute,  the Rights Agent will  countersign,  and the Company will
send or cause to be sent (and the Rights  Agent  will,  if  requested,  send) by
first-class,  postage-prepaid mail, to each record holder of Common Shares as of
the Close of Business on the  Distribution  Date,  at the address of such holder
shown on the records of the Company, a Rights  Certificate  evidencing one Right
for each Common Share so held,  subject to adjustment as provided herein. In the
event that an  adjustment in the number of Rights per Common Share has been made
pursuant to Section 11 hereof,  then at the time of  distribution  of the Rights
Certificates,  the Company  shall make the necessary  and  appropriate  rounding
adjustments   (in   accordance   with  Section  14(a)  hereof)  so  that  Rights
Certificates  representing only whole numbers of Rights are distributed and cash
is paid in lieu of any  fractional  Rights.  As of the  Distribution  Date,  the
Rights  will  be  evidenced  solely  by  such  Rights  Certificates  and  may be
transferred  by the transfer of the Rights  Certificates  as  permitted  hereby,
separately and apart from any transfer of Common Shares, and the holders of such
Rights  Certificates  as listed in the  records of the  Company or any  transfer
agent or registrar for the Rights shall be the record holders thereof.

     (b) On the Record Date or as soon as  practicable  thereafter,  the Company
will send a copy of the Summary of Rights by first-class,  postage-prepaid mail,
to each record holder of Common Shares as of the Close of Business on the Record
Date,  at the  address of such  holder  shown on the  records  of the  Company's
transfer agent and  registrar.  With respect to  certificates  for Common Shares
outstanding as of the Record Date, until the Distribution  Date, the Rights will
be evidenced by such certificates registered in the names of the holders thereof
together with the Summary of Rights.

     (c) Unless the Board of  Directors by  resolution  adopted at or before the
time of the issuance of any Common Shares after the Record Date but prior to the
earlier  of the  Distribution  Date  or the  Expiration  Date  (or,  in  certain
circumstances  provided  in  Section  22 hereof,  after the  Distribution  Date)
specifies  to the  contrary,  Rights  shall be issued in  respect  of all Common
Shares that are so issued,  and  Certificates  representing  such Common  Shares
shall also be deemed to be certificates for Rights, and shall bear the following
legend:

     THIS  CERTIFICATE  ALSO EVIDENCES AND ENTITLES THE HOLDER HEREOF TO CERTAIN
     RIGHTS  AS  SET  FORTH  IN A  RIGHTS  AGREEMENT  BETWEEN  Miravant  Medical
     Technologies  AND U.S.  STOCK  TRANSFER  CORPORATION,  AS THE RIGHTS AGENT,
     DATED AS OF JULY 13, 2000, (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 MIRAVANT  MEDICAL  TECHNOLOGIES  UNDER
     CERTAIN  CIRCUMSTANCES,  AS SET FORTH IN THE RIGHTS AGREEMENT,  SUCH RIGHTS
     WILL BE EVIDENCED BY SEPARATE  CERTIFICATES AND WILL NO LONGER BE EVIDENCED
     BY THIS CERTIFICATE.  Miravant Medical Technologies 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  SET
     FORTH IN THE RIGHTS AGREEMENT, RIGHTS ISSUED TO, OR HELD BY, ANY PERSON WHO
     IS,  WAS OR BECOMES  AN  ACQUIRING  PERSON OR ANY  AFFILIATE  OR  ASSOCIATE
     THEREOF  (AS SUCH  TERMS ARE  DEFINED  IN THE  RIGHTS  AGREEMENT),  WHETHER
     CURRENTLY HELD BY OR ON BEHALF OF SUCH PERSON OR BY ANY SUBSEQUENT  HOLDER,
     MAY BECOME NULL AND VOID.

With respect to such  certificates  containing the foregoing  legend,  until the
earlier of the Distribution  Date or the Expiration Date, the Rights  associated
with the Common Shares  represented by such  certificates  shall be evidenced by
such certificates  alone, and the surrender for transfer of any such certificate
shall also  constitute  the  transfer of the Rights  associated  with the Common
Shares represented thereby.

     (d) In the event that the Company  purchases or acquires any Common  Shares
after the Record Date but prior to the Distribution  Date, any Rights associated
with such Common Shares shall be deemed canceled and retired so that the Company
shall not be entitled to exercise any Rights  associated  with the Common Shares
which are no longer outstanding.

     Section 4.........Form of Rights Certificates.

     (a) The Rights  Certificates  (and the forms of election to purchase Common
Shares  and of  assignment  to be  printed  on the  reverse  thereof)  shall  be
substantially  in the form of  Exhibit  B  hereto  and may  have  such  marks of
identification  or  designation  and such  legends,  summaries  or  endorsements
printed thereon as the Company may deem  appropriate and as are not inconsistent
with the provisions of this Agreement,  or as may be required to comply with any
applicable law or with any rule or regulation made pursuant  thereto or with any
rule or regulation of any stock exchange or a national  market system,  on which
the Rights may from time to time be listed or included,  or to conform to usage.
Subject  to the  provisions  of Section  11 and  Section  22 hereof,  the Rights
Certificates,  whenever distributed, shall be dated as of the Record Date (or in
the case of Rights  issued with respect to Common  Shares  issued by the Company
after the Record Date, as of the date of issuance of such Common  Shares) and on
their  face  shall  entitle  the  holders  thereof to  purchase  such  number of
one-thousandths  of a Preferred Share as shall be set forth therein at the price
set forth therein (such  exercise  price per one  one-thousandth  of a Preferred
Share being  hereinafter  referred to as the "Exercise  Price" and the aggregate
Exercise Price of all Preferred Shares issuable upon exercise of one Right being
hereinafter  referred to as the "Total Exercise Price"), but the number and type
of securities purchasable upon the exercise of each Right and the Exercise Price
shall be subject to adjustment as provided herein.

     (b) Any Rights  Certificate  issued  pursuant to Section 3(a) or Section 22
hereof that represents Rights  beneficially owned by: (i) an Acquiring Person or
any Associate or Affiliate of an Acquiring Person, (ii) a Post-Event Transferee,
(iii)  a  Pre-Event  Transferee  or (iv)  any  subsequent  transferee  receiving
transferred  Rights from a  Post-Event  Transferee  or a  Pre-Event  Transferee,
either directly or through one or more intermediate transferees,  and any Rights
Certificate  issued  pursuant to Section 6 or Section 11 hereof  upon  transfer,
exchange,  replacement or adjustment of any other Rights Certificate referred to
in this sentence, shall contain (to the extent feasible) the following legend:

THE RIGHTS REPRESENTED BY THIS RIGHTS CERTIFICATE ARE OR WERE BENEFICIALLY OWNED
BY A PERSON WHO WAS OR BECAME AN  ACQUIRING  PERSON OR AN AFFILIATE OR ASSOCIATE
OF AN  ACQUIRING  PERSON  (AS SUCH TERMS ARE  DEFINED IN THE RIGHTS  AGREEMENT).
ACCORDINGLY,  THIS  RIGHTS  CERTIFICATE  AND THE RIGHTS  REPRESENTED  HEREBY MAY
BECOME  NULL AND VOID IN THE  CIRCUMSTANCES  SPECIFIED  IN  SECTION  7(e) OF THE
RIGHTS AGREEMENT.

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

     (a) The Rights  Certificates  shall be executed on behalf of the Company by
its Chairman of the Board,  its Chief  Executive  Officer,  its Chief  Financial
Officer,  its President or any Vice  President,  either manually or by facsimile
signature, and by the Secretary or an Assistant Secretary of the Company, either
manually or by facsimile signature, and shall have affixed thereto the Company's
seal (if any) or a facsimile thereof.  The Rights Certificates shall be manually
countersigned  by the Rights Agent and shall not be valid for any purpose unless
countersigned.  In case any  officer of the Company who shall have signed any of
the Rights  Certificates  shall cease to be such  officer of the Company  before
countersignature  by the Rights  Agent and issuance and delivery by the Company,
such Rights 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 Rights  Certificates on behalf of the Company had not
ceased to be such  officer of the  Company;  and any Rights  Certificate  may be
signed on behalf of the  Company by any person  who,  at the actual  date of the
execution of such Rights  Certificate,  shall be a proper officer of the Company
to sign such Rights  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 its office designated for such purposes,  books for registration and
transfer of the Rights Certificates issued hereunder.  Such books shall show the
names and addresses of the respective  holders of the Rights  Certificates,  the
number of Rights  evidenced on its face by each of the Rights  Certificates  and
the date of each of the Rights Certificates.

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

     (a) Subject to the  provisions of Sections  7(e), 14 and 24 hereof,  at any
time after the Close of Business on the  Distribution  Date,  and at or prior to
the Close of Business on the Expiration  Date, any Rights  Certificate or Rights
Certificates  may be  transferred,  split up,  combined or exchanged for another
Rights  Certificate or Rights  Certificates,  entitling the registered holder to
purchase a like number of  one-thousandths of a Preferred Share (or, following a
Triggering Event, other securities, cash or other assets, as the case may be) as
the Rights  Certificate or Rights  Certificates  surrendered  then entitled such
holder to  purchase.  Any  registered  holder  desiring to  transfer,  split up,
combine or exchange any Rights  Certificate  or Rights  Certificates  shall make
such request in writing  delivered to the Rights Agent,  and shall surrender the
Rights Certificate or Rights Certificates to be transferred,  split up, combined
or  exchanged  at the office of the Rights Agent  designated  for such  purpose.
Neither the Rights  Agent nor the Company  shall be obligated to take any action
whatsoever  with  respect  to  the  transfer  of  any  such  surrendered  Rights
Certificate  until the  registered  holder shall have  completed  and signed the
certificate  contained  in the form of  assignment  on the reverse  side of such
Rights  Certificate  and shall have  provided  such  additional  evidence of the
identity of the Beneficial Owner (or former  Beneficial  Owner) or Affiliates or
Associates thereof as the Company shall reasonably request. Thereupon the Rights
Agent shall, subject to Sections 7(e), 14 and 24 hereof, countersign and deliver
to the person entitled thereto a Rights Certificate or Rights  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 Rights
Certificates.

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

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

     (a) Subject to Sections 7(e), 23(b) and 24(b) hereof, the registered holder
of any Rights  Certificate may exercise the Rights evidenced  thereby (except as
otherwise  provided  herein)  in  whole  or  in  part  at  any  time  after  the
Distribution  Date and prior to the Close of Business on the Expiration  Date by
surrender  of the Rights  Certificate,  with the form of election to purchase on
the reverse side thereof duly executed, to the Rights Agent at the office of the
Rights Agent designated for such purpose,  together with payment of the Exercise
Price for each  one-thousandth of a Preferred Share (or,  following a Triggering
Event,  other  securities,  cash or other assets as the case may be) as to which
the Rights are exercised.

     (b) The  Exercise  Price  for  each  one-thousandth  of a  Preferred  Share
issuable  pursuant to the  exercise of a Right  shall  initially  be One Hundred
Eighty Dollars  ($180.00),  shall be subject to adjustment  from time to time as
provided in  Sections  11 and 13 hereof and shall be payable in lawful  money of
the United States of America in accordance with paragraph (c) below.

     (c) Upon receipt of a Rights Certificate  representing  exercisable Rights,
with the form of election to purchase duly  executed,  accompanied by payment of
the Exercise Price for the number of  one-thousandths  of a Preferred Share (or,
following a Triggering Event, other securities, cash or other assets as the case
may be) to be  purchased  and an amount  equal to any  applicable  transfer  tax
required to be paid by the holder of such Rights  Certificate in accordance with
Section 9(e) hereof,  the Rights Agent shall,  subject to Section  20(k) hereof,
thereupon  promptly (i) (A) requisition from any transfer agent of the Preferred
Shares (or make  available,  if the Rights Agent is the  transfer  agent for the
Preferred   Shares)  a   certificate   or   certificates   for  the   number  of
one-thousandths  of a Preferred Share (or,  following a Triggering Event,  other
securities,  cash or other  assets as the case may be) to be  purchased  and the
Company hereby irrevocably authorizes its transfer agent to comply with all such
requests or (B) if the Company shall have elected to deposit the total number of
one-thousandths  of a Preferred Share (or,  following a Triggering Event,  other
securities,  cash or other assets as the case may be) issuable  upon exercise of
the Rights  hereunder with a depositary  agent,  requisition from the depositary
agent  depositary  receipts  representing  such number of  one-thousandths  of a
Preferred Share (or,  following a Triggering Event,  other  securities,  cash or
other  assets  as  the  case  may  be) as are to be  purchased  (in  which  case
certificates for the Preferred Shares (or,  following a Triggering Event,  other
securities,  cash or  other  assets  as the  case  may be)  represented  by such
receipts shall be deposited by the transfer agent with the depositary agent) and
the Company  hereby  directs the  depositary  agent to comply with such request,
(ii) when  appropriate,  requisition  from the  Company the amount of cash to be
paid in lieu of issuance of  fractional  shares in  accordance  with  Section 14
hereof, (iii) after receipt of such certificates or depositary  receipts,  cause
the same to be delivered to or upon the order of the  registered  holder of such
Rights  Certificate,  registered  in such name or names as may be  designated by
such holder and (iv) when appropriate,  after receipt thereof, deliver such cash
to or upon the order of the registered  holder of such Rights  Certificate.  The
payment of the Exercise Price (as such amount may be reduced (including to zero)
pursuant to Section  11(a)(iii)  hereof) and an amount  equal to any  applicable
transfer  tax  required to be paid by the holder of such Rights  Certificate  in
accordance  with Section 9(e) hereof,  may be made in cash or by certified  bank
check, cashier's check or bank draft payable to the order of the Company. In the
event that the Company is obligated  to issue  securities  of the Company  other
than Preferred  Shares,  pay cash and/or  distribute other property  pursuant to
Section 11(a) hereof,  the Company will make all arrangements  necessary so that
such other securities, cash and/or other property are available for distribution
by the Rights Agent, if and when appropriate.

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

     (e)  Notwithstanding  anything in this Agreement to the contrary,  from and
after the first occurrence of a Triggering Event, any Rights  beneficially owned
by (i) an Acquiring Person or an Associate or Affiliate of an Acquiring  Person,
(ii) a transferee of an Acquiring Person (or of any such Associate or Affiliate)
who becomes a transferee  after the Acquiring Person becomes such (a "Post-Event
Transferee"),  (iii)  a  transferee  of an  Acquiring  Person  (or of  any  such
Associate or Affiliate) who becomes a transferee  prior to or concurrently  with
the Acquiring  Person  becoming such and receives such Rights pursuant to either
(A) a transfer (whether or not for  consideration)  from the Acquiring Person to
holders of equity  interests in such Acquiring Person or to any Person with whom
the Acquiring Person has any continuing agreement,  arrangement or understanding
regarding the transferred  Rights or (B) a transfer which the Company's Board of
Directors has determined is part of a plan,  arrangement or understanding  which
has as a primary  purpose  or  effect  the  avoidance  of this  Section  7(e) (a
"Pre-Event  Transferee") or (iv) any subsequent transferee receiving transferred
Rights from a Post-Event Transferee or a Pre-Event  Transferee,  either directly
or through  one or more  intermediate  transferees,  shall  become null and void
without  any further  action and no holder of such Rights  shall have any rights
whatsoever  with respect to such  Rights,  whether  under any  provision of this
Agreement or otherwise.  The Company shall use all reasonable  efforts to ensure
that the  provisions  of this  Section 7(e) and Section 4(b) hereof are complied
with, but shall have no liability to any holder of Rights Certificates or to any
other Person as a result of its failure to make any determinations  with respect
to an Acquiring Person or any of such Acquiring Person's Affiliates,  Associates
or transferees hereunder.

     (f) Notwithstanding anything in this Agreement to the contrary, neither the
Rights Agent nor the Company  shall be  obligated  to undertake  any action with
respect to a registered holder upon the occurrence of any purported  exercise as
set forth in this Section 7 unless such registered  holder shall, in addition to
having  complied with the  requirements  of Section 7(a), have (i) completed and
signed the  certificate  contained in the form of election to purchase set forth
on the reverse side of the Rights Certificate  surrendered for such exercise and
(ii) provided such additional  evidence of the identity of the Beneficial  Owner
(or former Beneficial Owner) or Affiliates or Associates  thereof as the Company
shall  reasonably  request.  Section  8.........Cancellation  and Destruction of
Rights  Certificates.  All Rights  Certificates  surrendered  for the purpose of
exercise,  transfer,  split up, combination or exchange shall, if surrendered to
the  Company or to any of its  agents,  be  delivered  to the  Rights  Agent for
cancellation or in canceled form, or, if surrendered to the Rights Agent,  shall
be canceled by it, and no Rights  Certificates  shall be issued in lieu  thereof
except as expressly  permitted by any of the provisions of this  Agreement.  The
Company shall deliver to the Rights Agent for cancellation  and retirement,  and
the Rights Agent shall so cancel and retire, any Rights Certificate purchased or
acquired by the Company  otherwise  than upon the exercise  thereof.  The Rights
Agent shall deliver all canceled Rights  Certificates to the Company,  or shall,
at  the  written   request  of  the  Company,   destroy  such  canceled   Rights
Certificates,  and in such case  shall  deliver  a  certificate  evidencing  the
destruction thereof to the Company.

     Section 9.........Reservation and Availability of Preferred Shares.

     (a) The Company  covenants  and agrees that it will use its best efforts to
cause to be reserved  and kept  available  out of its  authorized  and  unissued
Preferred Shares not reserved for another purpose (and, following the occurrence
of a Triggering  Event,  out of its authorized and unissued Common Shares and/or
other securities), the number of Preferred Shares (and, following the occurrence
of the Triggering  Event,  Common Shares and/or other  securities)  that will be
sufficient to permit the exercise in full of all outstanding Rights.

     (b) If the Company shall  hereafter  list any of its Preferred  Shares on a
national  securities  exchange,  then  so  long as the  Preferred  Shares  (and,
following  the  occurrence  of a Triggering  Event,  Common  Shares and/or other
securities)  issuable and deliverable  upon exercise of the Rights may be listed
on such  exchange,  the Company  shall use its best  efforts to cause,  from and
after such time as the Rights become exercisable (but only to the extent that it
is reasonably likely that the Rights will be exercised), all shares reserved for
such issuance to be listed on such  exchange  upon  official  notice of issuance
upon such exercise.

     (c) The  Company  shall  use  its  best  efforts  to (i)  file,  as soon as
practicable  following  the  earliest  date  after  the  first  occurrence  of a
Triggering Event in which the  consideration to be delivered by the Company upon
exercise of the Rights is described in Section  11(a)(ii) or Section  11(a)(iii)
hereof, or as soon as is required by law following the Distribution Date, as the
case may be, a registration  statement  under the Securities Act with respect to
the securities  purchasable upon exercise of the Rights on an appropriate  form,
(ii)  cause  such  registration   statement  to  become  effective  as  soon  as
practicable  after such filing and (iii) cause such  registration  statement  to
remain effective (with a prospectus at all times meeting the requirements of the
Securities  Act) until the earlier of (A) the date as of which the Rights are no
longer  exercisable  for such  securities  and (B) the date of expiration of the
Rights. The Company may temporarily  suspend,  for a period not to exceed ninety
(90) days after the date set forth in clause (i) of the first  sentence  of this
Section 9(c), the exercisability of the Rights in order to prepare and file such
registration  statement  and  permit  it to  become  effective.  Upon  any  such
suspension,  the Company shall issue a public announcement  stating,  and notify
the Rights Agent,  that the  exercisability  of the Rights has been  temporarily
suspended, as well as a public announcement and notification to the Rights Agent
at such time as the  suspension  is no longer in effect.  The Company  will also
take such action as may be appropriate  under, or to ensure compliance with, the
securities  or "blue  sky" laws of the  various  states in  connection  with the
exercisability of the Rights. Notwithstanding any provision of this Agreement to
the contrary,  the Rights shall not be exercisable in any  jurisdiction,  unless
the requisite qualification in such jurisdiction shall have been obtained, or an
exemption therefrom shall be available,  and until a registration  statement has
been declared and remains effective.

     (d) The Company  covenants  and agrees that it will take all such action as
may be necessary to ensure that all Preferred Shares (or other securities of the
Company) delivered upon exercise of Rights shall, at the time of delivery of the
certificates for such securities  (subject to payment of the Exercise Price), be
duly and validly authorized and issued and fully paid and nonassessable. (e) The
Company  further  covenants and agrees that it will pay when due and payable any
and all federal  and state  transfer  taxes and charges  which may be payable in
respect of the original  issuance or delivery of the Rights  Certificates  or of
any Preferred  Shares (or other  securities of the Company) upon the exercise of
Rights.  The Company  shall not,  however,  be required to pay any  transfer tax
which  may be  payable  in  respect  of  any  transfer  or  delivery  of  Rights
Certificates to a person other than, or the issuance or delivery of certificates
or  depositary  receipts for the  Preferred  Shares (or other  securities of the
Company)  in a name  other  than that of,  the  registered  holder of the Rights
Certificate evidencing Rights surrendered for exercise or to issue or to deliver
any  certificates  or  depositary   receipts  for  Preferred  Shares  (or  other
securities  of the  Company)  upon the exercise of any Rights until any such tax
shall have been paid (any such tax being  payable  by the holder of such  Rights
Certificate  at the time of surrender) or until it has been  established  to the
Company's satisfaction that no such tax is due.

     Section  10........Record  Date.  Each Person in whose name any certificate
for a number of one-thousandths of a Preferred Share (or other securities of the
Company) is issued upon the  exercise of Rights shall for all purposes be deemed
to have become the holder of record of Preferred  Shares (or other securities of
the Company)  represented  thereby on, and such certificate  shall be dated, the
date  upon  which  the  Rights  Certificate  evidencing  such  Rights  was  duly
surrendered  and payment of the Total  Exercise  Price with respect to which the
Rights  have  been  exercised  (and any  applicable  transfer  taxes)  was made;
provided, however, that if the date of such surrender and payment is a date upon
which the transfer books of the Company are closed,  such Person shall be deemed
to have become the record holder of such shares on, and such  certificate  shall
be dated,  the next  succeeding  Business Day on which the transfer books of the
Company are open.  Prior to the exercise of the Rights  evidenced  thereby,  the
holder of a Rights  Certificate  shall not be entitled to any rights of a holder
of Preferred  Shares (or other  securities  of the Company) for which the Rights
shall be  exercisable,  including,  without  limitation,  the right to vote,  to
receive dividends or other  distributions or to exercise any preemptive  rights,
and shall not be  entitled  to  receive  any  notice of any  proceedings  of the
Company, except as provided herein.

     Section  11........Adjustment of Exercise Price, Number of Shares or Number
of Rights.  The Exercise Price,  the number and kind of shares or other property
covered  by each  Right and the  number of Rights  outstanding  are  subject  to
adjustment from time to time as provided in this Section 11.

     (a) (i)......Anything in this Agreement to the contrary notwithstanding, in
the event that the  Company  shall at any time after the date of this  Agreement
(A) declare a dividend on the Preferred Shares payable in Preferred Shares,  (B)
subdivide  the  outstanding   Preferred  Shares,  (C)  combine  the  outstanding
Preferred  Shares (by reverse stock split or otherwise) into a smaller number of
Preferred   Shares,  or  (D)  issue  any  shares  of  its  capital  stock  in  a
reclassification of the Preferred Shares (including any such reclassification in
connection with a consolidation or merger in which the Company is the continuing
or  surviving  corporation),  then,  in each such  event,  except  as  otherwise
provided in this Section 11 and Section 7(e) hereof:  (1) the Exercise  Price in
effect at the time of the record date for such dividend or of the effective date
of such subdivision,  combination or reclassification  shall be adjusted so that
the Exercise Price  thereafter  shall equal the result  obtained by dividing the
Exercise  Price in  effect  immediately  prior to such time by a  fraction  (the
"Adjustment  Fraction"),  the  numerator  of which shall be the total  number of
Preferred Shares (or shares of capital stock issued in such  reclassification of
the  Preferred  Shares)  outstanding  immediately  following  such  time and the
denominator of which shall be the total number of Preferred  Shares  outstanding
immediately prior to such time;  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 such  Right;  and (2) the number of  one-thousandths  of a Preferred
Share (or share of such other capital stock)  issuable upon the exercise of each
Right shall equal the number of  one-thousandths  of a Preferred Share (or share
of  such  other  capital  stock)  as  was  issuable  upon  exercise  of a  Right
immediately prior to the occurrence of the event described in clauses (A)-(D) of
this Section 11(a)(i), multiplied by the Adjustment Fraction; provided, however,
that, no such adjustment  shall be made pursuant to this Section 11(a)(i) to the
extent  that there shall have  simultaneously  occurred  an event  described  in
clause (A),  (B), (C) or (D) of Section  11(n) with a  proportionate  adjustment
being made thereunder.  Each Common Share that shall become outstanding after an
adjustment has been made pursuant to this Section 11(a)(i) shall have associated
with it the  number of Rights,  exercisable  at the  Exercise  Price and for the
number of  one-thousandths of a Preferred Share (or shares of such other capital
stock) as one Common Share has  associated  with it  immediately  following  the
adjustment made pursuant to this Section 11(a)(i).

     (ii)  Subject  to  Section  24 of  this  Agreement,  in  the  event  that a
Triggering  Event shall have occurred,  then promptly  following such Triggering
Event each holder of a Right,  except as provided in Section 7(e) hereof,  shall
thereafter  have the right to receive for each Right,  upon exercise  thereof in
accordance with the terms of this Agreement and payment of the Exercise Price in
effect immediately prior to the occurrence of the Triggering Event, in lieu of a
number of  one-thousandths of a Preferred Share, such number of Common Shares of
the Company as shall  equal the  quotient  obtained by dividing  (A) the product
obtained by multiplying  (1) the Exercise Price in effect  immediately  prior to
the occurrence of the Triggering Event by (2) the number of one-thousandths of a
Preferred  Share  for  which  a  Right  was  exercisable  (or  would  have  been
exercisable  if the  Distribution  Date had occurred)  immediately  prior to the
first  occurrence  of a  Triggering  Event,  by (B) 50% of the Current Per Share
Market  Price for  Common  Shares on the date of  occurrence  of the  Triggering
Event;  provided,  however,  that the  Exercise  Price and the  number of Common
Shares of the Company so receivable upon exercise of a Right shall be subject to
further  adjustment as  appropriate  in accordance  with Section 11(e) hereof to
reflect  any events  occurring  in respect of the Common  Shares of the  Company
after the occurrence of the Triggering Event.

     (iii) In lieu of issuing Common Shares in accordance with Section 11(a)(ii)
hereof,  the Company may, if the Company's  Board of Directors  determines  that
such action is  necessary  or  appropriate  and not  contrary to the interest of
holders of Rights and, in the event that the number of Common  Shares  which are
authorized by the Company's  Certificate of Incorporation but not outstanding or
reserved for issuance  for purposes  other than upon  exercise of the Rights are
not sufficient to permit the exercise in full of the Rights, or if any necessary
regulatory approval for such issuance has not been obtained by the Company,  the
Company  shall:  (A)  determine the excess of (1) the value of the Common Shares
issuable  upon  the  exercise  of a Right  (the  "Current  Value")  over (2) the
Exercise  Price (such excess,  the "Spread") and (B) with respect to each Right,
make adequate  provision to substitute for such Common Shares,  upon exercise of
the Rights,  (1) cash, (2) a reduction in the Exercise  Price,  (3) other equity
securities of the Company  (including,  without  limitation,  shares or units of
shares of any series of preferred  stock which the Company's  Board of Directors
has  deemed to have the same  value as Common  Shares  (such  shares or units of
shares of preferred stock are herein called "Common Stock Equivalents")), except
to the extent that the Company has not obtained  any  necessary  stockholder  or
regulatory  approval  for such  issuance,  (4) debt  securities  of the Company,
except to the extent that the Company has not obtained any necessary stockholder
or  regulatory  approval  for  such  issuance,  (5)  other  assets  or  (6)  any
combination  of the  foregoing,  having an aggregate  value equal to the Current
Value,  where such aggregate value has been determined by the Company's Board of
Directors based upon the advice of a nationally  recognized  investment  banking
firm selected by the Company's Board of Directors;  provided,  however,  that if
the Company shall not have made adequate  provision to deliver value pursuant to
clause (B) above within  thirty (30) days  following  the later of (x) the first
occurrence of a Triggering  Event and (y) the date on which the Company's  right
of redemption  pursuant to Section 23(a) expires (the later of (x) and (y) being
referred to herein as the "Section  11(a)(ii)  Trigger Date"),  then the Company
shall be obligated to deliver,  upon the  surrender  for exercise of a Right and
without  requiring  payment of the Exercise Price,  Common Shares (to the extent
available), except to the extent that the Company has not obtained any necessary
stockholder or regulatory  approval for such  issuance,  and then, if necessary,
cash,  which shares and/or cash have an aggregate value equal to the Spread.  If
the Company's Board of Directors shall determine in good faith that it is likely
that sufficient  additional  Common Shares could be authorized for issuance upon
exercise in full of the Rights or that any  necessary  regulatory  approval  for
such issuance  will be obtained,  the thirty (30) day period set forth above 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 or take
action to obtain such regulatory  approval (such period,  as it may be extended,
the "Substitution  Period"). To the extent that the Company determines that some
action  need be taken  pursuant to the first  and/or  second  sentences  of this
Section  11(a)(iii),  the Company  (x) shall  provide,  subject to Section  7(e)
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, to
take any action to obtain any required  regulatory approval and/or to decide the
appropriate  form of distribution to be made pursuant to such first 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. For purposes of this Section  11(a)(iii),
the value of the Common  Shares  shall be the Current Per Share  Market Price of
the Common  Shares on the Section  11(a)(ii)  Trigger  Date and the value of any
Common  Stock  Equivalent  shall be deemed to have the same  value as the Common
Shares on such date.

     (b) In  case  the  Company  shall,  at any  time  after  the  date  of this
Agreement,  fix a record date for the issuance of rights, options or warrants to
all holders of Preferred  Shares  entitling such holders (for a period  expiring
within forty-five (45) calendar days after such record date) to subscribe for or
purchase  Preferred Shares or Equivalent  Shares or securities  convertible into
Preferred  Shares  or  Equivalent  Shares  at a price  per  share  (or  having a
conversion  price per share, if a security  convertible into Preferred Shares or
Equivalent  Shares)  less than the then  Current Per Share  Market  Price of the
Preferred  Shares or Equivalent  Shares on such record date,  then, in each such
case,  the  Exercise  Price to be in effect  after  such  record  date  shall be
determined by multiplying the Exercise Price in effect immediately prior to such
record  date by a  fraction,  the  numerator  of which  shall be the  number  of
Preferred Shares and Equivalent Shares (if any) outstanding on such record date,
plus the number of Preferred  Shares or Equivalent  Shares,  as the case may be,
which the aggregate  offering  price of the total number of Preferred  Shares or
Equivalent  Shares,  as the case may be, to be  offered  or issued  (and/or  the
aggregate initial  conversion price of the convertible  securities to be offered
or issued) would purchase at such current market price,  and the  denominator of
which shall be the number of  Preferred  Shares and  Equivalent  Shares (if any)
outstanding on such record date, plus the number of additional  Preferred Shares
or  Equivalent  Shares,  as the case may be, 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  Company's
Board of Directors,  whose determination shall be described in a statement filed
with the Rights  Agent and shall be binding on the Rights  Agent and the holders
of the Rights.  Preferred Shares and Equivalent  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 Exercise  Price shall be adjusted to be the  Exercise  Price
which would then be in effect if such record date had not been fixed.

     (c) In  case  the  Company  shall,  at any  time  after  the  date  of this
Agreement,  fix a record date for the making of a distribution to all holders of
the Preferred Shares or of any class or series of Equivalent  Shares  (including
any such distribution made in connection with a consolidation or merger in which
the  Company  is the  continuing  or  surviving  corporation)  of  evidences  of
indebtedness or assets (other than a regular quarterly cash dividend, if any, or
a dividend  payable in  Preferred  Shares) or  subscription  rights,  options or
warrants  (excluding  those  referred to in Section  11(b)),  then, in each such
case,  the  Exercise  Price to be in effect  after  such  record  date  shall be
determined by multiplying the Exercise Price in effect immediately prior to such
record date by a fraction, the numerator of which shall be the Current Per Share
Market Price of a Preferred  Share or an  Equivalent  Share on such record date,
less  the  fair  market  value  per  Preferred  Share or  Equivalent  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) of
the  portion  of  the  cash,  assets  or  evidences  of  indebtedness  so  to be
distributed or of such subscription rights or warrants applicable to a Preferred
Share or  Equivalent  Share,  as the case may be, and the  denominator  of which
shall be such Current Per Share Market Price of a Preferred  Share or Equivalent
Share  on such  record  date;  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. 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 Exercise  Price shall be adjusted to be the Exercise  Price which would have
been in effect if such record date had not been fixed.

     (d) Anything herein to the contrary  notwithstanding,  no adjustment in the
Exercise  Price  shall be  required  unless  such  adjustment  would  require an
increase  or  decrease of at least one  percent  (1.0%) of the  Exercise  Price;
provided,  however,  that any adjustments  which by reason of this Section 11(d)
are not  required to be made shall be carried  forward and taken into account in
any subsequent adjustment.  All calculations under this Section 11 shall be made
to the nearest cent or to the nearest  ten-thousandth of a Common Share or other
share  or one  hundred-thousandth  of a  Preferred  Share,  as the  case may be.
Notwithstanding  the  first  sentence  of this  Section  11(d),  any  adjustment
required by this Section 11 shall be made no later than the earlier of (i) three
(3) years from the date of the  transaction  which  requires such  adjustment or
(ii) the Expiration Date.

     (e) If as a result of an  adjustment  made  pursuant  to  Section  11(a) or
Section 13(a) hereof, the holder of any Right thereafter  exercised shall become
entitled to receive any shares of capital  stock  other than  Preferred  Shares,
thereafter  the number of such other shares so  receivable  upon exercise of any
Right  and,  if  required,  the  Exercise  Price  thereof,  shall be  subject to
adjustment  from time to time in a manner and on terms as nearly  equivalent  as
practicable to the provisions with respect to the Preferred  Shares contained in
Sections 11(a),  11(b),  11(c),  11(d),  11(g),  11(h),  11(i), 11(j), 11(k) and
11(l),  and the  provisions  of Sections 7, 9, 10, 13 and 14 with respect to the
Preferred  Shares  shall apply on like terms to any such other  shares.

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

     (g) Unless the Company  shall have  exercised  its  election as provided in
Section  11(h),  upon each  adjustment of the Exercise  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  Exercise  Price,  that number of  Preferred  Shares
(calculated to the nearest one  hundred-thousandth  of a share)  obtained by (i)
multiplying  (x) the number of Preferred  Shares covered by a Right  immediately
prior to this adjustment,  by (y) the Exercise Price in effect immediately prior
to such  adjustment  of the  Exercise  Price,  and (ii)  dividing the product so
obtained by the Exercise Price in effect  immediately  after such  adjustment of
the Exercise Price.

     (h) The  Company  may elect on or after the date of any  adjustment  of the
Exercise Price as a result of the  calculations  made in Section 11(b) or (c) to
adjust the number of Rights, in substitution for any adjustment in the number of
Preferred Shares  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-thousandths  of a  Preferred  Share for which a Right was
exercisable  immediately  prior to such  adjustment.  Each  Right held of record
prior to such  adjustment  of the number of Rights  shall  become that number of
Rights (calculated to the nearest one  hundred-thousandth)  obtained by dividing
the Exercise  Price in effect  immediately  prior to  adjustment of the Exercise
Price by the  Exercise  Price in  effect  immediately  after  adjustment  of the
Exercise 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.  This record date
may be the date on which the Exercise  Price is adjusted or any day  thereafter,
but, if any Rights  Certificates  have been  issued,  shall be at least ten (10)
days later than the date of the public announcement. If Rights Certificates have
been  issued,  upon each  adjustment  of the number of Rights  pursuant  to this
Section  11(h),  the Company  shall,  as promptly  as  practicable,  cause to be
distributed  to holders of record of Rights  Certificates  on such  record  date
Rights  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 Rights  Certificates  held by
such holders prior to the date of  adjustment,  and upon surrender  thereof,  if
required by the Company,  new Rights  Certificates  evidencing all the Rights to
which such holders shall be entitled after such adjustment.  Rights Certificates
so to be distributed  shall be issued,  executed and countersigned in the manner
provided for herein (and may bear,  at the option of the  Company,  the adjusted
Exercise Price) and shall be registered in the names of the holders of record of
Rights Certificates on the record date specified in the public announcement.

     (i)  Irrespective  of any adjustment or change in the Exercise Price or the
number of Preferred Shares issuable upon the exercise of the Rights,  the Rights
Certificates  theretofore  and  thereafter  issued may  continue  to express the
Exercise  Price per one  one-thousandth  of a Preferred  Share and the number of
one-thousandths  of a Preferred Share which were expressed in the initial Rights
Certificates issued hereunder.

     (j) Before  taking any action that would cause an  adjustment  reducing the
Exercise  Price  below  the par or  stated  value,  if  any,  of the  number  of
one-thousandths  of a Preferred Share 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 as
fully  paid  and  nonassessable  shares  such  number  of  one-thousandths  of a
Preferred Share at such adjusted Exercise Price.

     (k) In any case in which this Section 11 shall  require that an  adjustment
in the  Exercise  Price be made  effective  as of a record  date for a specified
event,  the Company may elect to defer  until the  occurrence  of such event the
issuing  to the holder of any Right  exercised  after  such  record  date of the
number of  one-thousandths  of a  Preferred  Share and  other  capital  stock or
securities  of the Company,  if any,  issuable upon such exercise over and above
the number of  one-thousandths  of a Preferred  Share and other capital stock or
securities of the Company,  if any,  issuable upon such exercise on the basis of
the Exercise 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
(fractional  or  otherwise)  upon the  occurrence  of the event  requiring  such
adjustment.

(l)  Anything in this Section 11 to the
contrary  notwithstanding,  prior to the Distribution Date, the Company shall be
entitled to make such  reductions  in the Exercise  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 (i)
consolidation  or subdivision  of the Preferred or Common Shares,  (ii) issuance
wholly  for cash of any  Preferred  or Common  Shares  at less than the  current
market price,  (iii)  issuance  wholly for cash of Preferred or Common Shares or
securities  which  by their  terms  are  convertible  into or  exchangeable  for
Preferred  or Common  Shares,  (iv) stock  dividends  or (v) issuance of rights,
options or  warrants  referred  to in this  Section  11,  hereafter  made by the
Company to holders of its  Preferred  or Common  Shares  shall not be taxable to
such  stockholders.

     (m) The Company covenants and agrees that, after the Distribution  Date, it
will not,  except as permitted by Sections 23, 24 or 27 hereof,  take (or permit
to be taken)  any  action if at the time such  action is taken it is  reasonably
foreseeable that such action will diminish  substantially or otherwise eliminate
the benefits intended to be afforded by the Rights.

     (n) In the event that the Company  shall at any time after the date of this
Agreement (A) declare a dividend on the Common Shares  payable in Common Shares,
(B) subdivide the outstanding  Common Shares, (C) combine the outstanding Common
Shares (by reverse  stock split or  otherwise)  into a smaller  number of Common
Shares,  or (D) issue any shares of its capital stock in a  reclassification  of
the Common Shares  (including  any such  reclassification  in connection  with a
consolidation  or merger in which the  Company is the  continuing  or  surviving
corporation),  then,  in each such event,  except as otherwise  provided in this
Section  11(a) and Section  7(e)  hereof:  (1) each  Common  Share (or shares of
capital stock issued in such  reclassification of the Common Shares) outstanding
immediately  following  such time  shall have  associated  with it the number of
Rights  as were  associated  with  one  Common  Share  immediately  prior to the
occurrence of the event  described in clauses  (A)-(D)  above;  (2) the Exercise
Price in  effect  at the time of the  record  date for such  dividend  or of the
effective date of such  subdivision,  combination or  reclassification  shall be
adjusted so that the Exercise Price  thereafter  shall equal the result obtained
by multiplying the Exercise Price in effect  immediately prior to such time by a
fraction,  the  numerator  of which shall be the total  number of Common  Shares
outstanding  immediately  prior to the event described in clauses (A)-(D) above,
and the  denominator  of which  shall  be the  total  number  of  Common  Shares
outstanding  immediately after such event;  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 such  Right;  and  (3) the  number  of  one-thousandths  of a
Preferred  Share (or  shares of such  other  capital  stock)  issuable  upon the
exercise  of each Right  outstanding  after such event shall equal the number of
one-thousandths  of a Preferred Share (or shares of such other capital stock) as
were issuable with respect to one Right  immediately  prior to such event.  Each
Common Share that shall become  outstanding  after an  adjustment  has been made
pursuant  to this  Section  11(n)  shall have  associated  with it the number of
Rights,  exercisable at the Exercise Price and for the number of one-thousandths
of a Preferred Share (or shares of such other capital stock) as one Common Share
has  associated  with it immediately  following the adjustment  made pursuant to
this Section 11(n).  If an event occurs which would require an adjustment  under
both this Section 11(n) and Section  11(a)(ii) hereof,  the adjustment  provided
for in this  Section  11(n) shall be in addition to, and shall be made prior to,
any adjustment required pursuant to Section 11(a)(ii) hereof.

     Section  12........Certificate  of  Adjusted  Exercise  Price or  Number of
Shares. Whenever an adjustment is made as provided in Sections 11 and 13 hereof,
the  Company  shall  promptly  (a)  prepare a  certificate  setting  forth  such
adjustment and a brief  statement of the facts  accounting for such  adjustment,
(b) file with the Rights Agent and with each  transfer  agent for the  Preferred
Shares a copy of such  certificate  and (c) mail a brief summary thereof to each
holder  of  a  Rights   Certificate  in  accordance   with  Section  26  hereof.
Notwithstanding the foregoing sentence,  the failure of the Company to make such
certification  or give  such  notice  shall  not  affect  the  validity  of such
adjustment or the force or effect of the  requirement for such  adjustment.  The
Rights Agent shall be fully protected in relying on any such  certificate and on
any  adjustment  contained  therein and shall not be deemed to have knowledge of
such adjustment unless and until it shall have received such certificate.

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

     (a)  In  the  event  that,  following  a  Triggering  Event,   directly  or
indirectly:

          (i) the Company shall  consolidate  with, or merge with and into,  any
     other  Person  (other than a  wholly-owned  Subsidiary  of the Company in a
     transaction  the  principal  purpose  of which is to  change  the  state of
     incorporation of the Company and which complies with Section 11(m) hereof);

          (ii) any Person shall consolidate with the Company,  or merge with and
     into the Company  and the  Company  shall be the  continuing  or  surviving
     corporation of such  consolidation  or merger and, in connection  with such
     merger, all or part of the Common Shares shall be changed into or exchanged
     for stock or other securities of any other person (or the Company); 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 50% or more of the assets
     or earning power of the Company and its Subsidiaries  (taken as a whole) to
     any other  Person or Persons  (other than the Company or one or more of its
     wholly  owned  Subsidiaries  in one or more  transactions,  each  of  which
     individually (and together) complies with Section 11(m) hereof),

                                    then, concurrent with and in each such case,

     (A) each  holder of a Right  (except as provided  in Section  7(e)  hereof)
shall thereafter have the right to receive, upon the exercise thereof at a price
equal to the Total Exercise Price applicable immediately prior to the occurrence
of the Section 13 Event in  accordance  with the terms of this  Agreement,  such
number of validly  authorized and issued,  fully paid,  nonassessable and freely
tradeable Common Shares of the Principal Party (as hereinafter defined), free of
any liens,  encumbrances,  rights of first refusal or other adverse  claims,  as
shall be equal to the result  obtained by dividing such Total  Exercise Price by
an amount equal to fifty  percent (50%) of the Current Per Share Market Price of
the Common Shares of such Principal  Party on the date of  consummation  of such
Section 13 Event,  provided,  however, that the Exercise Price and the number of
Common Shares of such  Principal  Party so  receivable  upon exercise of a Right
shall be subject to further adjustment as appropriate in accordance with Section
11(e) hereof;

     (B) such Principal Party shall  thereafter be liable for, and shall assume,
by virtue  of such  Section  13 Event,  all the  obligations  and  duties of the
Company pursuant to this Agreement;

     (C) the  term  "Company"  shall  thereafter  be  deemed  to  refer  to such
Principal Party, it being  specifically  intended that the provisions of Section
11  hereof  shall  apply  only to  such  Principal  Party  following  the  first
occurrence of a Section 13 Event;

     (D) such Principal Party shall take such steps (including,  but not limited
to, the  reservation of a sufficient  number of its Common Shares) in connection
with the consummation of any such transaction as may be necessary to ensure that
the provisions  hereof shall  thereafter be applicable,  as nearly as reasonably
may be,  in  relation  to its  Common  Shares  thereafter  deliverable  upon the
exercise of the Rights; and

     (E) 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 Total  Exercise 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 Shares of the Principal Party receivable upon
the exercise of such 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.

     (F) For  purposes  hereof,  the  "earning  power"  of the  Company  and its
Subsidiaries  shall  be  determined  in good  faith  by the  Company's  Board of
Directors on the basis of the operating income of each business  operated by the
Company and its Subsidiaries during the three fiscal years preceding the date of
such  determination (or, in the case of any business not operated by the Company
or any Subsidiary during three full fiscal years preceding such date, during the
period such business was operated by the Company or any Subsidiary).

     (b) For purposes of this Agreement, the term "Principal Party" shall mean:

          (i) in the case of any transaction  described in clause (i) or (ii) of
     Section 13(a) hereof:  (A) the Person that is the issuer of the  securities
     into which the Common Shares are converted in such merger or consolidation,
     or, if there is more than one such issuer,  the issuer the Common Shares 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  Common  Shares 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  clause  (iii) of
     Section 13(a) hereof,  the Person that is the party  receiving the greatest
     portion  of the  assets  or  earning  power  transferred  pursuant  to such
     transaction or transactions, or, if more than one Person that is a party to
     such transaction or transactions receives the same portion of the assets or
     earning power so transferred  and each such portion would,  were it not for
     the other equal portions,  constitute the greatest 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 Shares  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
     Shares of such  Person  are not at such time or have 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 Shares of which are and have been so registered,
     the term "Principal Party" shall refer to such other Person, or (2) if such
     Person is a Subsidiary,  directly or  indirectly,  of more than one Person,
     the  Common  Shares  of which  are and have  been so  registered,  the term
     "Principal Party" shall refer to whichever of such Persons is the issuer of
     Common  Shares  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 ration as its
     interest in such Person bears to the total of such interests.

     (c) The  Company  shall not  consummate  any  Section  13 Event  unless the
Principal Party shall have a sufficient  number of authorized Common Shares that
have not been issued or reserved  for issuance to permit the exercise in full of
the Rights in  accordance  with this  Section 13 and unless  prior  thereto  the
Company and such issuer shall have  executed and delivered to the Rights Agent a
supplemental   agreement  confirming  that  such  Principal  Party  shall,  upon
consummation of such Section 13 Event,  assume this Agreement in accordance with
Sections 13(a) and 13(b) hereof,  that all rights of first refusal or preemptive
rights in respect of the issuance of Common Shares of such Principal  Party upon
exercise  of  outstanding  Rights  have been  waived,  that there are no rights,
warrants,   instruments   or  securities   outstanding   or  any  agreements  or
arrangements  which, as a result of the consummation of such transaction,  would
eliminate or substantially  diminish the benefits intended to be afforded by the
Rights and that such transaction shall not result in a default by such Principal
Party under this Agreement,  and further  providing that, as soon as practicable
after the date of such Section 13 Event,  such Principal Party will: (i) prepare
and file a registration  statement  under the Securities Act with respect to the
Rights  and  the  securities  purchasable  upon  exercise  of the  Rights  on an
appropriate form, use its best efforts to cause such  registration  statement to
become  effective  as soon as  practicable  after  such  filing and use its best
efforts  to cause  such  registration  statement  to  remain  effective  (with a
prospectus at all times meeting the  requirements  of the Securities  Act) until
the Expiration Date, and similarly comply with applicable state securities laws;
(ii) use its best  efforts to list (or  continue  the listing of) the Rights and
the securities  purchasable upon exercise of the Rights on a national securities
exchange or to meet the  eligibility  requirements  for  quotation on Nasdaq and
list (or continue the listing of) the Rights and the securities purchasable upon
exercise  of the  Rights on Nasdaq;  and (iii)  deliver to holders of the Rights
historical  financial  statements for such  Principal  Party which comply in all
respects with the  requirements  for  registration  on Form 10 (or any successor
form) under the Exchange Act.

         In the event  that at any time  after the  occurrence  of a  Triggering
Event some or all of the Rights  shall not have been  exercised at the time of a
transaction  described in this Section 13, the Rights which have not theretofore
been  exercised  shall  thereafter  be  exercisable  in the manner  described in
Section  13(a)  (without  taking into account any prior  adjustment  required by
Section 11(a)(ii)).

     (d) In case the "Principal  Party" for purposes of Section 13(b) hereof has
provision  in  any  of  its  authorized  securities  or in  its  certificate  of
incorporation  or by-laws or other instrument  governing its corporate  affairs,
which  provision  would have the effect of (i) causing such  Principal  Party to
issue  (other  than to holders of Rights  pursuant  to  Section 13  hereof),  in
connection with, or as a consequence of, the consummation of a Section 13 Event,
Common Shares or Equivalent Shares of such Principal Party at less than the then
Current  Per Share  Market  Price  thereof or  securities  exercisable  for,  or
convertible  into, Common Shares or Equivalent Shares of such Principal Party at
less than such then Current Per Share Market  Price,  or (ii)  providing for any
special payment, tax or similar provision in connection with the issuance of the
Common Shares of such  Principal  Party pursuant to the provisions of Section 13
hereof,  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
the Distribution Date, effect or permit to occur any Section 13 Event, if (i) at
the time or  immediately  after  such  Section  13 Event  there are any  rights,
warrants or other instruments or securities  outstanding or agreements in effect
which would substantially  diminish or otherwise eliminate the benefits intended
to be afforded by the Rights, (ii) prior to,  simultaneously with or immediately
after such Section 13 Event, the stockholders 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 (iii) the form or nature of  organization
of the Principal Party would preclude or limit the exercisability of the Rights.

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

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

     (a) The Company  shall not be required to issue  fractions  of Rights or to
distribute Rights Certificates which evidence fractional Rights. In lieu of such
fractional  Rights,  there shall be paid to the registered holders of the Rights
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,  as determined pursuant to the second sentence of
Section 1(j) hereof.

     (b) The  Company  shall not be  required to issue  fractions  of  Preferred
Shares (other than fractions that are integral  multiples of one  one-thousandth
of a Preferred Share) upon exercise of the Rights or to distribute  certificates
which  evidence  fractional  Preferred  Shares  (other than  fractions  that are
integral  multiples of one  one-thousandth of a Preferred  Share).  Interests in
fractions of Preferred Shares in integral  multiples of one  one-thousandth of a
Preferred Share may, at the election of the Company,  be evidenced by depositary
receipts,  pursuant  to an  appropriate  agreement  between  the  Company  and a
depositary selected by it; 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
Shares represented by such depositary receipts.  In lieu of fractional Preferred
Shares that are not  integral  multiples  of one  one-thousandth  of a Preferred
Share, the Company shall pay to the registered holders of Rights Certificates at
the time such Rights are exercised as herein provided an amount in cash equal to
the same fraction of the current market value of a Preferred Share. For purposes
of this Section 14(b),  the current  market value of a Preferred  Share shall be
the product equal to (x) one thousandth multiplied by (y) the closing price of a
Common  Share (as  determined  pursuant to the second  sentence of Section  1(j)
hereof) for the Trading Day immediately prior to the date of such exercise.

     (c) The Company  shall not be required to issue  fractions of Common Shares
or to distribute  certificates which evidence  fractional Common Shares upon the
exercise or exchange of Rights.  In lieu of such fractional  Common Shares,  the
Company shall pay to the registered  holders of Rights  Certificates at the time
such Rights are exercised as herein provided an amount in cash equal to the same
fraction of the current  market  value of a Common  Share.  For purposes of this
Section  14(c),  the current market value of a Common Share shall be the closing
price of a Common  Share (as  determined  pursuant  to the  second  sentence  of
Section 1(j) hereof) for the Trading Day  immediately  prior to the date of such
exercise.

     (d) The holder of a Right by the acceptance of the Right  expressly  waives
his or her right to  receive  any  fractional  Rights or any  fractional  shares
(other than fractions  that are integral  multiples of one  one-thousandth  of a
Preferred Share) upon exercise of a Right.

     Section 15........Rights of Action. All rights of action in respect of this
Agreement,  excepting the rights of action given to the Rights Agent pursuant to
Section 18 hereof, are vested in the respective registered holders of the Rights
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Shares);  and any registered holder of any Rights  Certificate (or, prior
to the  Distribution  Date,  of the Common  Shares),  without the consent of the
Rights Agent or of the holder of any other Rights  Certificate (or, prior to the
Distribution Date, of the Common Shares),  may, in his or her own behalf and for
his or her own benefit, enforce, and may institute and maintain any suit, action
or  proceeding  against the Company to enforce,  or otherwise act in respect of,
his or her right to exercise the Rights evidenced by such Rights  Certificate in
the manner provided in such Rights  Certificate  and in this Agreement.  Without
limiting the foregoing or any remedies available to the holders of Rights, it is
specifically  acknowledged that the holders of Rights would not have an adequate
remedy at law for any breach of this  Agreement and will be entitled to specific
performance of the obligations  under,  and injunctive  relief against actual or
threatened  violations  of,  the  obligations  of any  Person  subject  to  this
Agreement.

     Section  16........Agreement of Rights Holders. Every holder of a Right, by
accepting  the same,  consents  and agrees with the Company and the Rights Agent
and with every other holder of a Right that: (a) prior to the Distribution Date,
the Rights will be  transferable  only in  connection  with the  transfer of the
Common Shares;  (b) after the  Distribution  Date, the Rights  Certificates  are
transferable  only on the registry  books of the Rights Agent if  surrendered at
the  principal  office  or  offices  of the  Rights  Agent  designated  for such
purposes,  duly endorsed or accompanied  by a proper  instrument of transfer and
with the appropriate forms and certificates  fully executed;  and (c) subject to
Sections  6(a) and 7(f)  hereof,  the Company and the Rights  Agent may deem and
treat  the  person  in  whose  name the  Rights  Certificate  (or,  prior to the
Distribution  Date, the associated  Common Shares  certificate) is registered as
the absolute owner thereof and of the Rights evidenced thereby  (notwithstanding
any  notations  of  ownership  or  writing  on the  Rights  Certificates  or the
associated  Common Shares  certificate  made by anyone other than the Company or
the Rights Agent) for all purposes  whatsoever,  and neither the Company nor the
Rights Agent shall be affected by any notice to the contrary.

     Section  17........Rights  Certificate Holder Not Deemed a Stockholder.  No
holder, as such, of any Rights  Certificate  shall be entitled to vote,  receive
dividends or be deemed for any purpose to be the holder of the Preferred  Shares
or any other  securities of the Company which may at any time be issuable on the
exercise of the Rights represented  thereby, nor shall anything contained herein
or in any  Rights  Certificate  be  construed  to confer  upon the holder of any
Rights  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  specifically  provided  in Section 25  hereof),  or to
receive  dividends or  subscription  rights,  or  otherwise,  until the Right or
Rights  evidenced  by such  Rights  Certificate  shall  have been  exercised  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 administration and execution of this Agreement and
the exercise and performance of its duties hereunder. The Company also agrees to
indemnify  the Rights  Agent for,  and to hold it  harmless  against,  any loss,
liability or expense,  incurred without gross  negligence,  bad faith or willful
misconduct on the part of the Rights Agent,  for anything done or omitted by the
Rights  Agent in  connection  with the  acceptance  and  administration  of this
Agreement,  including  the costs and expenses of defending  against any claim of
liability  in the  premises.  In no event  will the  Rights  Agent be liable for
special,  indirect,  incidental  or  consequential  loss or  damage  of any kind
whatsoever, even if the Rights Agent has been advised of the possibility of such
loss or damage.

     (b) The Rights Agent shall be protected  and shall incur no liability  for,
or in respect of any action taken, suffered or omitted by it in connection with,
its  administration of this Agreement in reliance upon any Rights Certificate or
certificate for the Preferred Shares or Common Shares or for other securities of
the  Company,   instrument  of  assignment  or  transfer,   power  of  attorney,
endorsement,   affidavit,  letter,  notice,  direction,   consent,  certificate,
statement or other paper or document 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.

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

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

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

     Section  20........Duties  of Rights Agent. The Rights Agent undertakes the
duties and  obligations  imposed by this Agreement upon the following  terms and
conditions,  by all of which the Company and the holders of Rights 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 as to any action taken
or omitted by it in good faith and in accordance with such opinion.

     (b)  Whenever in the  performance  of its duties under this  Agreement  the
Rights  Agent  shall  deem it  necessary  or  desirable  that any fact or matter
(including,  without  limitation,  the identity of any Acquiring  Person and the
determination of Current Per Share Market Price) be proved or established by the
Company prior to taking or suffering any action  hereunder,  such fact or matter
(unless other evidence in respect thereof be herein specifically prescribed) may
be deemed to be conclusively  proved and established by a certificate  signed by
any  one  of the  Chairman  of the  Board,  the  Chief  Executive  Officer,  the
President, any Vice President, the Chief Financial Officer, the Secretary or any
Assistant  Secretary of the Company and delivered to the Rights Agent;  and such
certificate shall be full authorization to the Rights Agent for any action taken
or  suffered  in good  faith by it under the  provisions  of this  Agreement  in
reliance upon such certificate.

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

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

     (e) The Rights  Agent shall not be under any  responsibility  in respect of
the validity of this Agreement or the execution and delivery  hereof (except the
due  execution  hereof by the Rights  Agent) or in respect  of the  validity  or
execution of any Rights Certificate (except its countersignature  thereof);  nor
shall it be  responsible  for any  breach  by the  Company  of any  covenant  or
condition contained in this Agreement or in any Rights Certificate; nor shall it
be  responsible  for any  change  in the  exercisability  of the  Rights  or any
adjustment in the terms of the Rights  (including  the manner,  method or amount
thereof)  provided for in Sections 3, 11, 13, 23 or 24, 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 Rights  Certificates  after
receipt by the Rights Agent 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 Preferred  Shares to be issued  pursuant to this Agreement or
any Rights  Certificate or as to whether any Preferred Shares will, when issued,
be validly authorized and issued, fully paid and nonassessable.

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

     (g)  The  Rights  Agent  is  hereby   authorized  and  directed  to  accept
instructions  with respect to the  performance of its duties  hereunder from any
one of the Chairman of the Board,  the Chief Executive  Officer,  the President,
any Vice President,  the Chief Financial Officer, the Secretary or any Assistant
Secretary  of the  Company,  and  to  apply  to  such  officers  for  advice  or
instructions in connection  with its duties,  and it shall not be liable for any
action taken or suffered by it in good faith in accordance with  instructions of
any  such  officer  or  for  any  delay  in  acting  while   waiting  for  those
instructions.  Any application by the Rights Agent for written instructions from
the  Company  may, at the option of the Rights  Agent,  set forth in writing any
action  proposed  to be taken or omitted by the Rights  Agent  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 (5) Business Days after the
date on which any officer of the Company  actually  receives  such  application,
unless any such  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 or omitted.

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

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

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

     (k) If, with respect to any Rights  Certificate  surrendered  to the Rights
Agent  for  exercise  or  transfer,  the  certificate  attached  to the  form of
assignment  or form of election to purchase,  as the case may be, has either not
been  completed  or  indicates  an  affirmative  response  to  clause 1 and/or 2
thereof, the Rights Agent shall not take any further action with respect to such
requested exercise or transfer without first consulting with the Company.


     Section 21........Change of Rights Agent. The Rights Agent or any successor
Rights Agent may resign and be discharged  from its duties under this  Agreement
upon  thirty  (30) days'  notice in writing  mailed to the  Company  and to each
transfer  agent of the  Preferred  Shares and the Common Shares by registered or
certified  mail,  and to the holders of the Rights  Certificates  by first-class
mail. The Company may remove the Rights Agent or any successor Rights Agent upon
thirty (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 Preferred
Shares and the Common Shares by registered or certified mail, and to the holders
of the Rights 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 thirty  (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
Rights  Certificate  (who  shall,  with such  notice,  submit  his or her Rights
Certificate  for inspection by the Company),  then the registered  holder of any
Rights  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  corporation  organized and doing
business  under the laws of the  United  States  or of any  state of the  United
States,  in good  standing,  which is  authorized  under  such laws to  exercise
corporate trust or stockholder  services 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 $100
million. 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  Preferred
Shares  and the  Common  Shares,  and mail a notice  thereof  in  writing to the
registered  holders  of the  Rights  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 Rights Certificates.  Notwithstanding any
of the  provisions  of this  Agreement  or of the  Rights to the  contrary,  the
Company may, at its option,  issue new Rights Certificates  evidencing Rights in
such form as may be approved by its Board of Directors to reflect any adjustment
or change  in the  Exercise  Price and the  number or kind or class of shares or
other securities or property  purchasable under the Rights  Certificates made in
accordance  with the provisions of this  Agreement.  In addition,  in connection
with the issuance or sale of Common Shares following the  Distribution  Date and
prior to the redemption or expiration of the Rights, the Company (a) shall, with
respect to Common  Shares so issued or sold  pursuant  to the  exercise of stock
options  or  under  any  employee  plan or  arrangement  or upon  the  exercise,
conversion  or exchange of other  securities of the Company  outstanding  at the
date  hereof  or  upon  the  exercise,  conversion  or  exchange  of  securities
hereinafter  issued by the Company  and (b) may,  in any other  case,  if deemed
necessary or appropriate by the Board of Directors of the Company,  issue Rights
Certificates  representing  the appropriate  number of Rights in connection with
such issuance or sale;  provided,  however,  that (i) no such Rights Certificate
shall be issued  and this  sentence  shall be null and void ab initio if, and to
the extent that, such issuance or this sentence would create a significant  risk
of or result in material  adverse tax  consequences to the Company or the Person
to whom such Rights  Certificate  would be issued or would create a  significant
risk of or result in such options' or employee plans' or  arrangements'  failing
to qualify for otherwise available special tax treatment and (ii) no such Rights
Certificate shall be issued if, and to the extent that,  appropriate  adjustment
shall otherwise have been made in lieu of the issuance thereof.

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

     (a) The Company  may,  at its option and with the  approval of the Board of
Directors,  at any time prior to the Close of Business on the earlier of (i) the
fifth day  following the Shares  Acquisition  Date (or such later date as may be
determined by action of the Company's Board of Directors and publicly  announced
by the Company) and (ii) the Final Expiration Date, redeem all but not less than
all the then  outstanding  Rights at a  redemption  price of $0.  001 per Right,
appropriately  adjusted to reflect any stock  split,  stock  dividend or similar
transaction  occurring after the date hereof (such redemption price being herein
referred to as the "Redemption  Price") and the Company may, at its option,  pay
the  Redemption  Price either in Common  Shares  (based on the Current Per Share
Market Price thereof at the time of redemption) or cash.  Such redemption of the
Rights by the Company 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 date on which the Board of Directors elects to make the redemption effective
shall be referred to as the "Redemption Date."

     (b)  Immediately  upon the action of the Board of  Directors of the Company
ordering the  redemption of the Rights,  evidence of which shall have been filed
with the Rights  Agent,  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 ten (10) days after the action of the Board
of  Directors  ordering the  redemption  of the Rights,  the Company  shall give
notice  of such  redemption  to the  Rights  Agent and the  holders  of the then
outstanding  Rights by  mailing  such  notice to all such  holders at their last
addresses as they appear upon the  registry  books of the Rights Agent or, prior
to the  Distribution  Date, on the registry  books of the transfer agent for the
Common Shares. Any notice which is mailed in the manner herein provided shall be
deemed given, whether or not the holder receives the notice. Each such notice of
redemption  will state the method by which the payment of the  Redemption  Price
will be made.  Neither the Company nor any of its  Affiliates or Associates  may
redeem, acquire or purchase for value any Rights at any time in any manner other
than that specifically set forth in this Section 23 or in Section 24 hereof, and
other  than in  connection  with the  purchase  of  Common  Shares  prior to the
Distribution Date.

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

     (a)  Subject to  applicable  laws,  rules and  regulations,  and subject to
subsection 24(c) below,  the Company may, at its option,  by action of the Board
of Directors,  at any time after the occurrence of a Triggering Event,  exchange
all or part of the then  outstanding  and  exercisable  Rights  (which shall not
include  Rights that have become void pursuant to the provisions of Section 7(e)
hereof) for Common  Shares at an exchange  ratio of one Common  Share per Right,
appropriately  adjusted to reflect any stock  split,  stock  dividend or similar
transaction   occurring  after  the  date  hereof  (such  exchange  ratio  being
hereinafter referred to as the "Exchange Ratio"). Notwithstanding the foregoing,
the Board of Directors  shall not be  empowered  to effect such  exchange at any
time after any Person  (other than the Company,  any  Subsidiary of the Company,
any employee benefit plan of the Company or any such  Subsidiary,  or any entity
holding  Common Shares for or pursuant to the terms of any such plan),  together
with all Affiliates and Associates of such Person,  becomes the Beneficial Owner
of 50% or more of the Common Shares then outstanding.

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

     (c) In the event that there shall not be  sufficient  Common  Shares issued
but not  outstanding or authorized but unissued to permit any exchange of Rights
as contemplated in accordance with Section 24(a),  the Company shall either take
such  action as may be  necessary  to  authorize  additional  Common  Shares for
issuance  upon  exchange  of the  Rights or  alternatively,  at the  option of a
majority of the Board of  Directors,  with respect to each Right (i) pay cash in
an amount  equal to the  Current  Value  (as  hereinafter  defined),  in lieu of
issuing  Common  Shares  in  exchange  therefor,  or (ii)  issue  debt or equity
securities or a combination thereof,  having a value equal to the Current Value,
in lieu of issuing  Common  Shares in exchange  for each such  Right,  where the
value  of  such  securities  shall  be  determined  by a  nationally  recognized
investment banking firm selected by majority vote of the Board of Directors,  or
(iii)  deliver any  combination  of cash,  property,  Common Shares and/or other
securities having a value equal to the Current Value in exchange for each Right.
For  purposes  of this  Section  24(c) only,  the  Current  Value shall mean the
product of the Current Per Share  Market  Price of Common  Shares on the date of
the occurrence of the event described above in subparagraph  (a),  multiplied by
the number of Common Shares for which the Right  otherwise would be exchangeable
if there  were  sufficient  shares  available.  To the extent  that the  Company
determines that some action need be taken pursuant to clauses (i), (ii) or (iii)
of this  Section  24(c),  the Board of  Directors  may  temporarily  suspend the
exercisability of the Rights for a period of up to sixty (60) days following the
date on which the event described in Section 24(a) shall have occurred, in order
to seek any  authorization  of  additional  Common  Shares  and/or to decide the
appropriate  form of distribution to be made pursuant to the above provision 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.

     (d) The Company  shall not be required to issue  fractions of Common Shares
or to distribute  certificates which evidence  fractional Common Shares. In lieu
of such fractional Common Shares,  there shall be paid to the registered holders
of the Rights  Certificates  with regard to which such fractional  Common Shares
would otherwise be issuable, an amount in cash equal to the same fraction of the
current  market  value of a whole Common  Share (as  determined  pursuant to the
second sentence of Section 1(j) hereof).

     (e) The  Company  may,  at its  option,  by  majority  vote of the Board of
Directors,  at any time  before  any  Person  has  become an  Acquiring  Person,
exchange all or part of the then outstanding  Rights for rights of substantially
equivalent  value, as determined  reasonably and with good faith by the Board of
Directors based upon the advice of one or more nationally  recognized investment
banking firms.

     (f)  Immediately  upon the action of the Board of  Directors  ordering  the
exchange  of any Rights  pursuant  to  subsection  24(e) of this  Section 24 and
without any further  action and without any notice,  the right to exercise  such
Rights shall terminate and the only right  thereafter of a holder of such Rights
shall be to  receive  that  number of rights in  exchange  therefor  as has been
determined by the Board of Directors in accordance with subsection  24(e) above.
The Company shall give public notice of any such  exchange;  provided,  however,
that the failure to give,  or any defect in,  such  notice  shall not affect the
validity of such exchange.  The Company shall mail a notice of any such exchange
to all of the holders of such Rights at their last addresses as they appear upon
the registry  books of the transfer  agent for the Common Shares of the Company.
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 Rights will be effected.

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

     (a) In case the  Company  shall  propose  to  effect or permit to occur any
Triggering  Event or Section 13 Event,  the Company shall give notice thereof to
each holder of Rights in accordance  with Section 26 hereof at least twenty (20)
days prior to occurrence of such Triggering Event or such Section 13 Event.

     (b) In case any Triggering Event or Section 13 Event shall occur,  then, in
any such case, the Company shall as soon as practicable  thereafter give to each
holder of a Rights  Certificate,  in accordance with Section 26 hereof, a notice
of the  occurrence  of  such  event,  which  shall  specify  the  event  and the
consequences  of the event to holders of Rights under Sections  11(a)(ii) and 13
hereof.

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

                                    Miravant Medical Technologies
                                    336 Bollay Drive
                                    Santa Barbara, California 93117
                                    Attn.: Gary S. Kledzik, CEO

                                    with copies to:

                                    Nida & Maloney
                                    800 Anacapa Street
                                    Santa Barbara, California 93101
                                    Attn.: Joseph E. Nida, Esq.

                                    and

                                    Wilson Sonsini Goodrich & Rosati
                                    Professional Corporation
                                    650 Page Mill Road
                                    Palo Alto, California 94304-1050
                                    Attn.: Ignacio E. Salceda, Esq.

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

                                    U.S. Stock Transfer Corporation.
                                    1745 Gardena Avenue
                                    Glendale, California 91204-2991

                                    Attention: William Garza

Notices  or  demands  authorized  by this  Agreement  to be given or made by the
Company or the Rights  Agent to the  holder of any Rights  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.

     Section  27........Supplements and Amendments. Prior to the occurrence of a
Distribution  Date,  the Company may  supplement or amend this  Agreement in any
respect  without  the  approval  of any  holders of Rights and the Rights  Agent
shall, if the Company so directs, execute such supplement or amendment. From and
after the  occurrence of a  Distribution  Date, the Company and the Rights Agent
may from time to time supplement or amend this Agreement without the approval of
any  holders  of  Rights 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) to change or supplement the provisions hereunder in any manner
that the Company may deem  necessary or desirable  and that shall not  adversely
affect the interests of the holders of Rights (other than an Acquiring Person or
an Affiliate or Associate of an Acquiring Person);  provided, this Agreement may
not be  supplemented  or amended to  lengthen,  pursuant to clause (iii) of this
sentence,  (A) a time period relating to when the Rights may be redeemed at such
time as the Rights are not then  redeemable  or (B) any other time period unless
such  lengthening is for the purpose of protecting,  enhancing or clarifying the
rights  of,  and/or  the  benefits  to, the  holders  of Rights  (other  than an
Acquiring Person or an Affiliate or Associate of an Acquiring Person).  Upon the
delivery of a certificate from an appropriate officer of the Company that states
that the proposed  supplement  or amendment is in  compliance  with the terms of
this Section 27, the Rights Agent shall  execute such  supplement  or amendment.
Prior to the Distribution  Date, the interests of the holders of Rights shall be
deemed coincident with the interests of the holders of Common Shares.

     Section  28........Successors.  All the  covenants  and  provisions of this
Agreement  by or for the benefit of the  Company or the Rights  Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

     Section  29........Determinations  and  Actions by the Board of  Directors,
etc. For all purposes of this Agreement, any calculation of the number of Common
Shares outstanding at any particular time, including for purposes of determining
the particular  percentage of such outstanding Common Shares of which any Person
is the Beneficial  Owner,  shall be made in accordance with the last sentence of
Rule 13d-3(d)(1)(i) of the General Rules and Regulations under the Exchange Act.
The  Board of  Directors  of the  Company  shall  have the  exclusive  power and
authority to  administer  this  Agreement  and to exercise all rights and powers
specifically  granted to the Board,  or the  Company,  or as may be necessary or
advisable  in  the   administration  of  this  Agreement,   including,   without
limitation,  the  right  and  power  (i) to  interpret  the  provisions  of this
Agreement and (ii) to make all determinations  deemed necessary or advisable for
the administration of this Agreement (including a determination to redeem or not
redeem the Rights or to amend the  Agreement).  All such actions,  calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
in good faith,  shall (x) be final,  conclusive and binding on the Company,  the
Rights Agent,  the holders of the Rights  Certificates and all other parties and
(y) not subject the Board or the  Continuing  Directors to any  liability to the
holders of the Rights.

     Section  30........Benefits  of this  Agreement.  Nothing in this Agreement
shall be  construed  to give to any Person  other than the  Company,  the Rights
Agent and the registered  holders of the Rights  Certificates (and, prior to the
Distribution  Date, the Common Shares) any legal or equitable  right,  remedy or
claim pursuant to this  Agreement;  but this Agreement shall be for the sole and
exclusive benefit of the Company, the Rights Agent and the registered holders of
the  Rights  Certificates  (and,  prior to the  Distribution  Date,  the  Common
Shares).

     Section  31........Severability.   If  any  term,  provision,  covenant  or
restriction  of this Agreement is held by a court of competent  jurisdiction  or
other  authority  to be invalid,  void or  unenforceable,  the  remainder of the
terms, provisions,  covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected,  impaired or invalidated;
provided,  however,  that  notwithstanding  anything  in this  Agreement  to the
contrary, if any such term,  provision,  covenant or restriction is held by such
court  or  authority  to be  invalid,  void or  unenforceable  and the  Board of
Directors of the Company determines in its good faith judgment that severing the
invalid  language  from this  Agreement  would  adversely  affect the purpose or
effect of this Agreement, the right of redemption set forth in Section 23 hereof
shall be  reinstated  and shall not expire  until the Close of  Business  on the
tenth day following the date of such determination by the Board of Directors.

     Section  32........Governing  Law.  This  Agreement and each Right and each
Rights  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.

     Section  33........Counterparts.  This  Agreement  may be  executed  in any
number of counterparts and each of such  counterparts  shall for all purposes be
deemed to be an original,  and all such counterparts  shall together  constitute
but  one  and  the  same  instrument.  Section  34........Descriptive  Headings.
Descriptive  headings of the several Sections of this Agreement are inserted for
convenience  only and shall not control or affect the meaning or construction of
any of the provisions hereof.

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

"COMPANY"
                                        Miravant Medical Technologies

                                        By:   /s/ Gary S. Kledzik

                                        Name:  Gary S. Kledzik

                                        Title: Chief Executive Officer

"RIGHTS AGENT"                          U.S. STOCK TRANSFER CORPORATION

                                        By:  /s/ William Garza

                                        Name:  William Garza

                                        Title: Assistant Vice President


<PAGE>



                                    EXHIBIT A

                CERTIFICATE OF DESIGNATION OF RIGHTS, PREFERENCES

                                AND PRIVILEGES OF

                  SERIES B JUNIOR PARTICIPATING PREFERRED STOCK

                        OF MIRAVANT MEDICAL TECHNOLOGIES

     The undersigned,  Gary S. Kledzik and Joseph E. Nida do hereby certify:  1.
That they are the duly elected and acting President and Secretary, respectively,
of Miravant Medical Technologies, a Delaware corporation (the "Corporation"). 2.
That  pursuant to the  authority  conferred  upon the Board of  Directors by the
Restated Certificate of Incorporation of the said Corporation, the said Board of
Directors on July 13, 2000 adopted the following resolution creating a series of
50,000 shares of Preferred  Stock  designated  as Series B Junior  Participating
Preferred Stock:

     "RESOLVED,  that pursuant to the authority vested in the Board of Directors
of the corporation by the Restated  Certificate of  Incorporation,  the Board of
Directors  does hereby  provide for the issue of a series of Preferred  Stock of
the   Corporation  and  does  hereby  fix  and  herein  state  and  express  the
designations,  powers, preferences and relative and other special rights and the
qualifications,  limitations and  restrictions of such series of Preferred Stock
as follows:

     Section 1.  Designation  and  Amount.  The shares of such  series  shall be
designated  as "Series B Junior  Participating  Preferred  Stock."  The Series B
Junior Participating  Preferred Stock shall have a par value of $0.01 per share,
and the number of shares constituting such series shall be 50,000.

     Section 2. Proportional Adjustment. In the event that the Corporation shall
at any time  after  the  issuance  of any  share or  shares  of  Series B Junior
Participating  Preferred  Stock (i) declare any  dividend on Common Stock of the
Corporation  ("Common Stock") payable in shares of Common Stock,  (ii) subdivide
the outstanding  Common Stock or (iii) combine the outstanding Common Stock into
a  smaller  number of  shares,  then in each  such  case the  Corporation  shall
simultaneously  effect a  proportional  adjustment to the number of  outstanding
shares of Series B Junior Participating Preferred Stock.

     Section 3. Dividends and Distributions.

     (a) Subject to the prior and superior right of the holders of any shares of
any series of Preferred Stock ranking prior and superior to the shares of Series
B Junior Participating Preferred Stock with respect to dividends, the holders of
shares of Series B Junior  Participating  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  February,  May,  August  and  November  in each year  (each  such date being
referred to herein as a "Quarterly  Dividend  Payment Date"),  commencing on the
first  Quarterly  Dividend  Payment Date after the first  issuance of a share or
fraction  of a share of Series B Junior  Participating  Preferred  Stock,  in an
amount  per  share  (rounded  to the  nearest  cent)  equal to 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 or a
subdivision of the outstanding  shares of Common Stock (by  reclassification  or
otherwise),  declared  on the  Common  Stock  since  the  immediately  preceding
Quarterly  Dividend  Payment  Date,  or,  with  respect  to the first  Quarterly
Dividend  Payment Date,  since the first  issuance of any share or fraction of a
share of Series B Junior  Participating  Preferred  Stock.

     (b) The Corporation  shall declare a dividend or distribution on the Series
B Junior  Participating  Preferred  Stock as  provided  in  paragraph  (a) above
immediately  after it declares a dividend or  distribution  on the Common  Stock
(other than a dividend payable in shares of Common Stock).

     (c)  Dividends  shall  begin to  accrue on  outstanding  shares of Series B
Junior  Participating  Preferred Stock from the Quarterly  Dividend Payment Date
next preceding the date of issue of such shares of Series B Junior Participating
Preferred Stock,  unless the date of issue of such shares is prior to the record
date for the first Quarterly  Dividend  Payment Date, in which case dividends on
such  shares  shall begin to accrue  from the date of issue of such  shares,  or
unless the date of issue is a Quarterly Dividend Payment Date or is a date after
the record  date for the  determination  of holders of shares of Series B Junior
Participating  Preferred  Stock  entitled  to receive a quarterly  dividend  and
before such  Quarterly  Dividend  Payment  Date,  in either of which events such
dividends  shall  begin to accrue from such  Quarterly  Dividend  Payment  Date.
Accrued but unpaid  dividends  shall not bear  interest.  Dividends  paid on the
shares of Series B Junior  Participating  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 B  Junior  Participating
Preferred  Stock  entitled  to receive  payment of a  dividend  or  distribution
declared  thereon,  which record date shall be no more than 30 days prior to the
date fixed for the payment thereof.

     Section  4.  Voting  Rights.  The  holders  of  shares  of  Series B Junior
Participating Preferred Stock shall have the following voting rights:

     (a) Each  share of  Series B Junior  Participating  Preferred  Stock  shall
entitle the holder thereof to 1,000 votes on all matters  submitted to a vote of
the stockholders of the Corporation.

     (b) Except as otherwise provided herein or by law, the holders of shares of
Series B Junior  Participating  Preferred  Stock  and the  holders  of shares of
Common Stock shall vote together as one class on all matters submitted to a vote
of stockholders of the Corporation.

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

     Section 5. Certain Restrictions.

     (a)  The   Corporation   shall  not  declare  any  dividend  on,  make  any
distribution  on, or redeem or purchase or otherwise  acquire for  consideration
any shares of Common Stock after the first  issuance of a share or fraction of a
share of  Series B Junior  Participating  Preferred  Stock  unless  concurrently
therewith  it shall  declare a  dividend  on the  Series B Junior  Participating
Preferred Stock as required by Section 3 hereof.

     (b)  Whenever  quarterly  dividends  or other  dividends  or  distributions
payable on the Series B Junior  Participating  Preferred  Stock as  provided  in
Section 3 are in arrears,  thereafter and until all accrued and unpaid dividends
and  distributions,  whether  or not  declared,  on  shares  of  Series B Junior
Participating  Preferred  Stock  outstanding  shall have been paid in full,  the
Corporation  shall  not  (i)  declare  or  pay  dividends  on,  make  any  other
distributions  on, or redeem or purchase or otherwise  acquire for consideration
any shares of stock ranking junior (either as to dividends or upon  liquidation,
dissolution or winding up) to the Series B Junior Participating Preferred Stock;
(ii) declare or pay dividends on, 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 B Junior  Participating  Preferred
Stock,  except  dividends  paid  ratably  on the  Series B Junior  Participating
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 on a parity (either as to dividends or
upon  liquidation,   dissolution  or  winding  up)  with  the  Series  B  Junior
Participating  Preferred  Stock,  provided that the  Corporation may at any time
redeem,  purchase  or  otherwise  acquire  shares  of any such  parity  stock in
exchange for shares of any stock of the Corporation ranking junior (either as to
dividends or upon dissolution, liquidation or winding up) to the Series B Junior
Participating   Preferred  Stock;   (iv)  purchase  or  otherwise   acquire  for
consideration  any shares of Series B Junior  Participating  Preferred Stock, or
any shares of stock  ranking on a parity with the Series B Junior  Participating
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 B Juniornd  classes,  shall  determine in good faith will
result in fair and equitable treatment among the respective series or classes.

     (c) The  Corporation  shall not permit any subsidiary of the Corporation to
purchase  or  otherwise  acquire  for  consideration  any shares of stock of the
Corporation unless the Corporation could, under paragraph (a) of this Section 5,
purchase or otherwise acquire such shares at such time and in such manner.

     Section 6. Reacquired Shares.  Any shares of Series B Junior  Participating
Preferred Stock purchased or otherwise acquired by the Corporation in any manner
whatsoever shall be retired and canceled promptly after the acquisition thereof.
All such shares shall upon their  cancellation  become  authorized  but unissued
shares  of  Preferred  Stock  and may be  reissued  as part of a new  series  of
Preferred  Stock to be  created by  resolution  or  resolutions  of the Board of
Directors,  subject to the  conditions  and  restrictions  on issuance set forth
herein and in the Restated Certificate of Incorporation, as then amended.

     Section 7.  Liquidation,  Dissolution or Winding Up. Upon any  liquidation,
dissolution or winding up of the Corporation,  the holders of shares of Series B
Junior  Participating  Preferred Stock shall be entitled to receive an aggregate
amount per share equal to 1,000 times the aggregate amount to be distributed per
share to holders of shares of Common  Stock plus an amount  equal to any accrued
and unpaid dividends on such shares of Series B Junior  Participating  Preferred
Stock.

     Section 8. Consolidation,  Merger, etc. In case the Corporation shall enter
into any  consolidation,  merger,  combination or other transaction in which the
shares  of  Common  Stock are  exchanged  for or  changed  into  other  stock or
securities,  cash and/or any other property, then in any such case the shares of
Series  B  Junior  Participating  Preferred  Stock  shall  at the  same  time be
similarly  exchanged  or changed in an amount per share 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 changed or exchanged.

     Section  9. No  Redemption.  The  shares of  Series B Junior  Participating
Preferred Stock shall not be redeemable.

     Section 10.  Ranking.  The Series B Junior  Participating  Preferred  Stock
shall rank junior to all other series of the Corporation's Preferred Stock as to
the payment of dividends and the distribution of assets, unless the terms of any
such series shall provide otherwise.

     Section 11.  Amendment.  The Restated  Certificate of  Incorporation of the
Corporation  shall not be further  amended in any manner which would  materially
alter or change the powers,  preference or special rights of the Series B Junior
Participating  Preferred  Stock  so as to  affect  them  adversely  without  the
affirmative  vote of the  holders of a  majority  of the  outstanding  shares of
Series B Junior Participating Preferred Stock, voting separately as a series.

     Section 12.  Fractional  Shares.  Series B Junior  Participating  Preferred
Stock may be issued in fractions of a share which 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 B Junior Participating Preferred Stock.



     RESOLVED  FURTHER,  that the  Chief  Executive  Officer,  President,  Chief
Financial  Officer,  or any Vice  President  and the  Secretary or any Assistant
Secretary of this  corporation be, and they hereby are,  authorized and directed
to prepare and file a Certificate  of  Designation  of Rights,  Preferences  and
Privileges in accordance  with the foregoing  resolution  and the  provisions of
Delaware law and to take such actions as they may deem  necessary or appropriate
to carry out the intent of the foregoing resolution."

     We further  declare  under penalty of perjury that the matters set forth in
the  foregoing  Certificate  of  Designation  are  true and  correct  of our own
knowledge.

         Executed at Santa Barbara, California on July 13, 2000.



                                    /s/ Gary S. Kledzik
                                    -------------------
                                    Chief Executive Officer


                                    /s/ Joe E. Nida
                                    ---------------
                                    Secretary



                                    EXHIBIT B

                           FORM OF RIGHTS CERTIFICATE

Certificate No. R-                                      _________ Rights


         NOT  EXERCISABLE  AFTER THE EARLIER OF (i) JULY 31, 2010, (ii) THE DATE
         TERMINATED  BY THE COMPANY OR (iii) THE DATE THE COMPANY  EXCHANGES THE
         RIGHTS  PURSUANT  TO THE RIGHTS  AGREEMENT.  THE RIGHTS ARE  SUBJECT TO
         REDEMPTION,  AT THE OPTION OF THE  COMPANY,  AT $0.001 PER RIGHT ON THE
         TERMS SET FORTH IN THE RIGHTS AGREEMENT.  UNDER CERTAIN  CIRCUMSTANCES,
         RIGHTS  BENEFICIALLY  OWNED BY AN  ACQUIRING  PERSON OR AN AFFILIATE OR
         ASSOCIATE  OF AN  ACQUIRING  PERSON (AS SUCH  TERMS ARE  DEFINED IN THE
         RIGHTS  AGREEMENT) AND ANY SUBSEQUENT  HOLDER OF SUCH RIGHTS MAY BECOME
         NULL AND VOID. [THE RIGHTS  REPRESENTED BY THIS RIGHTS  CERTIFICATE ARE
         OR WERE  BENEFICIALLY  OWNED BY A PERSON WHO WAS OR BECAME AN ACQUIRING
         PERSON OR AN AFFILIATE  OR  ASSOCIATE  OF AN ACQUIRING  PERSON (AS SUCH
         TERMS ARE DEFINED IN THE RIGHTS  AGREEMENT).  ACCORDINGLY,  THIS RIGHTS
         CERTIFICATE AND THE RIGHTS  REPRESENTED HEREBY MAY BECOME NULL AND VOID
         IN  THE  CIRCUMSTANCES   SPECIFIED  IN  SECTION  7(e)  OF  SUCH  RIGHTS
         AGREEMENT.]1

                               RIGHTS CERTIFICATE

                          Miravant Medical Technologies

         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 July 13,  2000,  (the  "Rights
Agreement"),  between Miravant Medical Technologies, a Delaware corporation (the
"Company"),  and U.S.  Stock  Transfer  Corporation  (the  "Rights  Agent"),  to
purchase from the Company at any time after the Distribution  Date (as such term
is defined in the Rights  Agreement)  and prior to 5:00 P.M.,  New York time, on
July 31, 2010 at the office of the Rights Agent designated for such purpose,  or
at the office of its successor as Rights Agent, one one-thousandth  (1/1,000) of
a fully paid and non-assessable share of Series B Junior Participating Preferred
Stock, par value $0.01 per share (the "Preferred Shares"), of the Company, at an
Exercise Price of one hundred eighty dollars  ($180.00) per  one-thousandth of a
Preferred Share (the "Exercise Price"),  upon presentation and surrender of this
Rights Certificate with the Form of Election to Purchase and related Certificate
duly executed.  The number of Rights  evidenced by this Rights  Certificate (and
the number of  one-thousandths  of a Preferred Share which may be purchased upon
exercise  hereof) set forth above are the number and  Exercise  Price as of July
31, 2000 based on the Preferred  Shares as constituted at such date. As provided
in the Rights Agreement, the Exercise Price and the number and kind of Preferred
Shares or other  securities  which may be  purchased  upon the  exercise  of the
Rights  evidenced by this Rights  Certificate  are subject to  modification  and
adjustment upon the happening of certain events.

                  This  Rights  Certificate  is  subject  to all  of the  terms,
provisions and conditions of the Rights Agreement,  which terms,  provisions and
conditions  are hereby  incorporated  herein by reference and made a part hereof
and to which Rights Agreement reference is hereby made for a full description of
the rights, limitations of rights, obligations,  duties and immunities hereunder
of the Rights  Agent,  the Company  and the holders of the Rights  Certificates,
which   limitations   of  rights   include  the  temporary   suspension  of  the
exercisability of such Rights under the specific  circumstances set forth in the
Rights  Agreement.  Copies of the Rights  Agreement are on file at the principal
executive  offices of the Company and the  above-mentioned  office of the Rights
Agent.

                  Subject to the provisions of the Rights Agreement,  the Rights
evidenced by this Rights Certificate (i) may be redeemed by the Company,  at its
option, at a redemption price of $0.01 per Right or (ii) may be exchanged by the
Company in whole or in part for Common Shares,  substantially  equivalent rights
or other consideration as determined by the Company.

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

                  No  fractional  portion of less than one  one-thousandth  of a
Preferred  Share  will be  issued  upon the  exercise  of any  Right  or  Rights
evidenced hereby but in lieu thereof a cash payment will be made, as provided in
the Rights Agreement.

                  No  holder  of this  Rights  Certificate,  as  such,  shall be
entitled to vote or receive dividends or be deemed for any purpose the holder of
the Preferred  Shares or of any other securities of the Company which may at any
time be issuable on the exercise  hereof,  nor shall  anything  contained in the
Rights  Agreement or herein be construed  to confer upon the holder  hereof,  as
such, any of the rights of a 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  Rights
Certificate shall have been exercised as provided in the Rights Agreement.

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

         WITNESS the facsimile  signature of the proper  officers of the Company
and its corporate seal. Dated as of July __, 2000.

ATTEST:                                            Miravant Medical Technologies

                                                   By:
------------------------------------------------
Secretary

                                                   Its:

Countersigned:

U.S. STOCK TRANSFER CORPORATION

as Rights Agent

By:


Its:




<PAGE>



                   Form of Reverse Side of Rights Certificate

                               FORM OF ASSIGNMENT

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

                  FOR                        VALUE   RECEIVED    _______________
                                             hereby sells, assigns and transfers
                                             unto (Please print name and address
                                             of transferee)

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

Dated: _______________, ____




                                    Signature

Signature Guaranteed:

         Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.


<PAGE>



                                   CERTIFICATE

         The  undersigned  hereby  certifies by checking the  appropriate  boxes
that:

                  (1) this  Rights  Certificate  [ ] is [ ] is not  being  sold,
assigned and  transferred by or on behalf of a Person who is or was an Acquiring
Person,  or an  Affiliate  or  Associate  of any such  Person (as such terms are
defined in the Rights Agreement);

                  (2)  after  due  inquiry  and to  the  best  knowledge  of the
undersigned,  it [ ] did [ ] did not acquire the Rights evidenced by this Rights
Certificate  from any  Person who is, was or  subsequently  became an  Acquiring
Person or an Affiliate or Associate of any such Person.

Dated: _______________, ____




                                    Signature

Signature Guaranteed:

         Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.


<PAGE>



             Form of Reverse Side of Rights Certificate -- continued

                          FORM OF ELECTION TO PURCHASE

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


To:___________________________

                  The  undersigned   hereby   irrevocably   elects  to  exercise
_________________________  Rights  represented  by this  Rights  Certificate  to
purchase the number of  one-thousandths  of a Preferred  Share issuable upon the
exercise  of such  Rights and  requests  that  certificates  for such  number of
one-thousandths of a Preferred Share issued in the name of:

Please insert social security
or other identifying number


                                                 (Please print name and address)


If such number of Rights  shall not be all the Rights  evidenced  by this Rights
Certificate,  a new Rights  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 Guaranteed:

         Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.


<PAGE>



                                   CERTIFICATE

         The  undersigned  hereby  certifies by checking the  appropriate  boxes
that:

         (1) the Rights evidenced by this Rights Certificate [ ] are [ ] are not
being exercised by or on behalf of a Person who is or was an Acquiring Person or
an  Affiliate  or Associate of any such Person (as such terms are defined in the
Rights Agreement);

         (2) after due inquiry and to the best knowledge of the undersigned,  it
[ ] did [ ] did not acquire the Rights evidenced by this Rights Certificate from
any  Person  who is,  was or  subsequently  became  an  Acquiring  Person  or an
Affiliate or Associate of any such Person.

Dated: _______________, ____




                                    Signature

Signature Guaranteed:

         Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.


<PAGE>



             Form of Reverse Side of Rights Certificate -- continued

                                     NOTICE

                  The  signature  in  the  foregoing  Forms  of  Assignment  and
Election  must  conform  to the name as  written  upon  the face of this  Rights
Certificate in every particular, without alteration or enlargement or any change
whatsoever.


<PAGE>


                                    EXHIBIT C

                             STOCKHOLDER RIGHTS PLAN

                          Miravant Medical Technologies

                                Summary of Rights

<TABLE>
<CAPTION>
<S>                                         <C>                                 <C>


Distribution and                            The Board of Directors  has declared a dividend of one Right for each share of
Transfer of Rights;                         Common Stock of Miravant  Medical  Technologies  (the "Company")  outstanding.
Rights Certificate:                         Prior  to the  Distribution  Date  referred  to  below,  the  Rights  will  be
                                            evidenced  by  and  trade  with  the
                                            certificates  for the Common  Stock.
                                            After  the  Distribution  Date,  the
                                            Company     will     mail     Rights
                                            certificates    to   the   Company's
                                            stockholders  and  the  Rights  will
                                            become  transferable  apart from the
                                            Common Stock.

Distribution Date:                          Rights will  separate from the Common Stock and become  exercisable  following
                                            (a) the tenth day (or such later date as may be  determined  by the  Company's
                                            Board of Directors) after a person or group acquires  beneficial  ownership of
                                            20% or more of the Company's  Common Stock or (b) the  tenth  business day (or
                                            such later date as may be  determined  by the  Company's  Board of  Directors)
                                            after  a  person  or  group  announces  a  tender  or  exchange   offer,   the
                                            consummation  of which would  result in  ownership by a person or group of 20%
                                            or more of the Company's Common Stock.

Preferred Stock                             After the Distribution  Date, each Right will entitle the holder to purchase
Purchasable Upon                            for $180 (the "Exercise  Price"),  a fraction of a share of the Company's
Exercise of Rights:                         Preferred Stock with economic terms similar to that of one share of the
                                            Company's Common Stock.

Flip-In:                                    If  an   acquiror   (an   "Acquiring
                                            Person")  obtains 20% or more of the
                                            Company's  Common  Stock,  then each
                                            Right (other than Rights owned by an
                                            Acquiring  Person or its affiliates)
                                            will  entitle the holder  thereof to
                                            purchase,  for the Exercise Price, a
                                            number of  shares  of the  Company's
                                            Common Stock  having a  then-current
                                            market  value of twice the  Exercise
                                            Price.

Flip-Over:                                  If,  after an Acquiring  Person  obtains 20% or more of the  Company's  Common
                                            Stock,  (a) the Company merges into another entity,  (b) an  acquiring  entity
                                            merges  into  the  Company  or  (c) the  Company  sells  more  than 50% of the
                                            Company's  assets or earning  power,  then each Right (other than Rights owned
                                            by an Acquiring  Person or its affiliates)  will entitle the holder thereof to
                                            purchase,  for the Exercise  Price,  a number of shares of Common Stock of the
                                            person  engaging in the  transaction  having a then  current  market  value of
                                            twice the Exercise Price.

Exchange Provision:                         At any time after the date on which an  Acquiring  Person  obtains 20% or more
                                            of the Company's  Common Stock and prior to the  acquisition  by the Acquiring
                                            Person of 50% of the  outstanding  Common  Stock,  a majority  of the Board of
                                            Directors  and the Board of  Directors  of the Company may exchange the Rights
                                            (other than Rights owned by the Acquiring Person or its affiliates),  in whole
                                            or in part,  for shares of Common Stock of the Company at an exchange ratio of
                                            one share of Common Stock per Right (subject to adjustment).

Redemption of the                           Rights will be redeemable at the Company's  option for $0.001 per Right at any
Rights:                                     time on or prior to the fifth day (or such later date as may be  determined by
                                            the  Company's  Board of  Directors)
                                            after  public  announcement  that  a
                                            Person   has   acquired   beneficial
                                            ownership  of  20%  or  more  of the
                                            Company's  Common Stock (the "Shares
                                            Acquisition Date").

Expiration of the                           The Rights  expire on the  earliest  of (a) July 31, 2010 or  (b) exchange  or
Rights:                                     redemption of the Rights as described above.

Amendment of Terms of                       The  terms of the  Rights  and the  Rights  Agreement  may be  amended  in any
Rights:                                     respect  without  the  consent  of  the  Rights  holders  on or  prior  to the
                                            Distribution Date;  thereafter,  the
                                            terms of the  Rights  and the Rights
                                            Agreement may be amended without the
                                            consent  of the  Rights  holders  in
                                            order to cure any  ambiguities or to
                                            make changes  which do not adversely
                                            affect  the   interests   of  Rights
                                            holders  (other  than the  Acquiring
                                            Person).

Voting Rights:                              Rights will not have any voting rights.

Anti-Dilution                               Rights will have the benefit of certain  customary  anti-dilution provisions.
Provisions:

Taxes:                                      The  Rights  distribution  should  not  be  taxable  for  federal  income  tax
                                            purposes.  However,  following an event which  renders the Rights  exercisable
                                            or upon redemption of the Rights, stockholders may recognize taxable income.

The foregoing is a summary of certain principal terms of the Stockholder  Rights
Plan. It may be amended from time to time. A copy of the Rights  Agreement  will
be filed  with  the  Securities  and  Exchange  Commission  as an  Exhibit  to a
Registration  Statement  on Form 8-A dated July 18,  2000. A copy of the
Rights Agreement is available free of charge from the Company.



</TABLE>



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