Document:

Rights Agreement, dated as of September 24, 2010

 Exhibit 4.1 

RIGHTS AGREEMENT 

THIS RIGHTS AGREEMENT, dated as of September 24, 2010, is made by and between IRIS International, Inc., a Delaware corporation (the
“Company”), and Continental Stock Transfer & Trust Company, as Rights Agent (the “Rights Agent”). 

WITNESSETH 

WHEREAS, effective September 24, 2010 (the “Declaration Date”) the Board of Directors of the Company
authorized and declared a dividend distribution of one right (a “Right”) for each share of the Common Stock, par value $0.01 per share, of the Company (the “Common Stock”) outstanding at the Close of Business on
October 8, 2010 (the “Record Date”) and has further authorized the issuance of one Right (as such number may hereafter be adjusted pursuant to the provisions of this Rights Agreement) with respect to each share of Common
Stock issued between the Record Date and the earliest of the Distribution Date and the Expiration Date (as such terms are hereinafter defined). Each Right shall represent the right to purchase, upon the terms and subject to the conditions
hereinafter set forth, one one-thousandth (1/1000th) of a share (subject to adjustment) of the Series A Preferred Stock, par value $0.01 per share, of the Company (the “Preferred Stock”) having the rights and preferences
set forth in the form of Certificate of Designation of Rights, Preferences and Privileges of Series A Preferred Stock attached hereto as Exhibit A; 

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

 Section 1. Certain Definitions. For purposes of this Agreement, the following terms have the
meanings indicated: 
 “Acquiring Person” shall mean (i) any Person (as hereinafter defined) who is
an Adverse Person (as hereinafter defined), or (ii) any Person who or which, together with all Affiliates (as hereinafter defined) and Associates (as hereinafter defined) of such Person, shall, subsequent to the Declaration Date, become the
Beneficial Owner (as hereinafter defined) of 20% or more of the shares of Common Stock then outstanding, but shall not include (x) any Exempt Person (as hereinafter defined), (y) any Permitted Holder, or (z) any Person who becomes a
Beneficial Owner of 20% or more of the shares of Common Stock then outstanding solely because (1) of a change in the aggregate number of shares of Common Stock outstanding since the last date on which such Person acquired Beneficial Ownership
of any shares of Common Stock, or (2) it acquired such Beneficial Ownership in the good faith belief that such acquisition would not (A) cause such Beneficial Ownership to equal or exceed 20% of the shares of Common Stock then outstanding
(or in the case of a Permitted Holder, the percentage the Permitted Holder may hold without ceasing to be a Permitted Holder) and such Person relied in good faith in computing the percentage of its Beneficial Ownership on publicly filed reports or
documents of the Company which are inaccurate or out-of-date, or (B) otherwise cause a Distribution Date or the adjustment provided for in Section 14 to occur. Notwithstanding clause (z) of the prior sentence, if any Person
that is not an Acquiring Person because of the operation of such clause (z) does not reduce its Beneficial Ownership of shares of Common Stock to less than 20% (or in the case of a Permitted Holder, the percentage the Permitted Holder may hold

 
without ceasing to be a Permitted Holder) by the Close of Business on the fifth Business Day after notice from the Company (the date of notice being the first day) that such Person’s
Beneficial Ownership of Common Stock equals or exceeds 20% (or in the case of a Permitted Holder, the percentage the Permitted Holder may hold without ceasing to be a Permitted Holder), such Person shall, at the end of such five Business Day period,
become an Acquiring Person (and clause (z) shall no longer apply to such Person). For purposes of this definition, the determination whether any Person acted in “good faith” shall be conclusively determined by the Board of Directors,
acting by a vote of those directors of the Company whose approval would be required to redeem the Rights under Section 25. 

“Adverse Person” shall mean any Person other than an Exempt Person who is declared to be an Adverse Person by the
Board of Directors of the Company upon a determination that such Person, alone or together with its Affiliates and Associates, has, at any time after the Declaration Date, become the Beneficial Owner of a number of shares of Common Stock that the
Board of Directors determines to be substantial (which amount shall in no event be less than 10% of the shares of Common Stock then outstanding) and a determination by a majority of the Board of Directors after reasonable inquiry and investigation,
including consultation with such Persons as the Board of Directors shall deem appropriate, that (i) such Beneficial Ownership by such Person is intended to cause the Company to repurchase the shares of Common Stock beneficially owned by such
Person or to cause pressure on the Company to take action or enter into a transaction or series of transactions intended to provide such Person with short-term financial gain under circumstances where the Board of Directors determines that the best
long-term interest of the Company and its stockholders would not be served by taking such action or entering into such transaction or series of transactions at that time, or (ii) such Beneficial Ownership is causing or reasonably likely to
cause a material adverse impact on the business or prospects of the Company. 
 “Affiliate” and
“Associate” shall have the respective meanings ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as
in effect on the date hereof. 
 A Person shall be deemed the “Beneficial Owner” of, and shall be deemed
to “beneficially own,” and shall be deemed to have “Beneficial Ownership” of, any securities: 
 (i) which
such Person or any of such Person’s Affiliates or Associates, directly or indirectly, is deemed to beneficially own (as determined pursuant to Rule 13d-3 of the General Rules and Regulations under the Exchange Act as in effect on the date of
this Agreement) or has the right to dispose of; 
 (ii) which such Person or any of such Person’s Affiliates or Associates
has, directly or indirectly, (A) the right to acquire (whether such right is exercisable immediately or only after the passage of time) pursuant to any agreement (other than customary agreements with and between underwriters and selling group
members with respect to a bona fide public offering of securities), arrangement or understanding (whether or not in writing), or upon the exercise of conversion rights, exchange rights, rights (other than the Rights), warrants or options, or
otherwise; provided, however, that a Person shall not be deemed the “Beneficial Owner” of or to “beneficially own,” or to have the “Beneficial Ownership” of, (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 payment or exchange; or
(2) securities issuable upon exercise of Rights at any time prior to the occurrence of the Distribution Date, (B) the right to vote, including pursuant to any agreement, arrangement or understanding (whether or not in writing);
provided, however, that a Person shall not be deemed the “Beneficial Owner” of or to “beneficially own,” or to have the “Beneficial Ownership” of, any security under this clause (ii)(B) as a result of an
agreement, arrangement or understanding to vote such security if such agreement, arrangement or understanding (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 under the Exchange Act, and (2) is not also then reportable by such Person 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 (other than customary agreements with and between underwriters and selling group members with respect to a bona fide public offering of securities), arrangement or
understanding (whether or not in writing) for the purpose of acquiring, holding, voting (except pursuant to a revocable proxy as described in clause (B) of subparagraph (ii) of this definition) or disposing of any voting securities of the
Company. 
 “Board of Directors” shall mean the Board of Directors of the Company or any duly authorized
committee thereof. 
 “Business Day” shall mean any day other than a Saturday, Sunday or a day on which
banking institutions in the State of California are authorized or obligated by law or executive order to close. 

“Certificate of Designation” shall mean the Certificate of Designation of Rights, Preferences and Privileges of
Series A Preferred Stock, a copy of which is attached hereto as Exhibit A. 
 “Close of Business”
on any given date shall mean 5:00 P.M., Pacific time, on such date; provided, however, that if such date is not a Business Day, “Close of Business” shall mean 5:00 P.M., Pacific time, on the next succeeding Business Day.

 “Common Stock” when used with reference to the Company shall mean the shares of Common Stock,
presently par value $0.01 per share, of the Company, or any other shares of capital stock of the Company into which the Common Stock shall be reclassified or changed. “Common Stock” when used with reference to any Person other than the
Company shall mean the Common Stock (or, in the case of a trust, partnership or other unincorporated entity, the equivalent equity interest) with the greatest voting power of such Person (or, (i) if such Person is a Subsidiary of another
Person, the Person which ultimately controls such first-mentioned Person, or (ii) if such Person is ultimately controlled by two or more Persons, the controlling Person having Common Stock or equivalent equity interests with the greatest
aggregate current market value (determined by reference to the Current Market Price of such Common Stock or equivalent equity interests), together with all rights and benefits (however 

 
denominated or constituted) relating to such Common Stock (including, without limitation, any rights or warrants to acquire additional shares of such Common Stock or other securities or assets,
or to participate in any trust for the benefit of holders of such shares, or to share in the benefits of any agreements or other arrangements for the benefit of such holders), whether or not such rights are yet exercisable, and together with any
other securities which are represented by the certificates for such shares or are transferred in connection with transfers of such shares. 

“Current Market Price” per share of Common Stock or Preferred Stock (“Stock”) on any date
shall be deemed to be the average of the daily closing price per share of Stock for the 30 consecutive Trading Days (as such term is hereinafter defined) immediately prior to such date; provided, however, that in the event that the
Current Market Price per share of Stock is determined during a period following the announcement by the issuer of such Stock of (A) a dividend or distribution on such Stock, or (B) any subdivision, combination or reclassification of such
Stock, and prior to the expiration of 30 Trading Days after the ex-dividend date for such dividend or distribution, or the record date for such subdivision, combination or reclassification of such Stock, then, and in such case, the “Current
Market Price” shall be proportionately adjusted to take into account ex-dividend or ex-distribution trading. 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 Stock 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 or the principal national securities exchange on which the Stock is listed or
admitted to trading or, if the Stock is not listed or admitted to trading on any national securities exchange, the last price or, if not so quoted, the average of the closing bid and asked prices per share for the securities in the over-the-counter
market, as reported by the Financial Industry Regulatory Authority, Inc. (“FINRA”) or such other system then in use, or, if on any such date the security is not quoted by such organization, the average of the closing bid and asked prices
as furnished by a professional market maker making a market in the Stock selected by the Board of Directors. If on any such date no market maker is making a market in the Stock the fair value of such shares on such date as determined in good faith
by the Board of Directors shall be used. The term “Trading Day” shall mean a day on which the principal national securities exchange on which the shares of the Stock are listed or admitted to trading or traded is open for the transaction
of business or, if the Stock is not listed or admitted to trading on any national securities exchange, a Business Day. If the Common Stock is not publicly held or not so listed or traded, “Current Market Price” per share shall mean the
fair value per share of Common Stock as determined in good faith by the Board of Directors. 
 If the Current Market Price per
share of Preferred Stock cannot be determined in the manner provided above or if the Preferred Stock is not publicly traded, the “Current Market Price” per share of the Preferred Stock shall be conclusively deemed to be an amount equal to
the Current Market Price per share of the Common Stock as determined pursuant to the immediately preceding paragraph, multiplied by the Formula Number. If neither the Common Stock nor the Preferred Stock are publicly held or so listed or traded, the
“Current Market Price” per share of the Preferred Stock shall mean the fair value per share as determined in good faith by the Board of Directors, whose determination shall be described in a statement filed with the Rights Agent and shall
be conclusive and binding for all purposes. For all purposes of this Rights Agreement, the Current Market Price of one one-thousandth of a share of Preferred Stock shall be equal to the Current Market Price of one share of Preferred Stock divided by
1,000. 

 “Distribution Date” shall have the meaning set forth in
Section 3 hereof. 
 “Exchange Act” shall mean the Securities Exchange Act of 1934, as in
effect on the date in question, unless otherwise specifically provided. 
 “Exempt Person” shall include
(i) the Company, (ii) any Subsidiary (as hereinafter defined) of the Company, (iii) any employee benefit plan of the Company or any of its Subsidiaries, or any entity holding shares of Common Stock which was organized, appointed or
established by the Company or any Subsidiary of the Company for or pursuant to the terms of any such plan. 

“Permitted Acquisition” shall mean an acquisition of shares of Common Stock by a Person in a transaction or
series of transactions, which has been previously approved by a majority of the Board of Directors. 
 “Permitted
Holder” shall mean a Person who acquires Beneficial Ownership of the Common Stock of the Company pursuant to a Permitted Acquisition; provided, however, a Permitted Holder shall remain a Permitted Holder so long as the
aggregate Beneficial Ownership of Common Stock held by such Person does not exceed that number of shares of Common Stock held by such Person immediately following the Permitted Acquisition pursuant to which such Person became a Permitted Holder
(reduced by the number of shares of Common Stock from time to time disposed of by such Person) plus a number of additional shares of Common Stock equal to 1% of the then outstanding shares of Common Stock of the Company; provided,
however, any shares of Common Stock issued or issuable to a Permitted Holder pursuant to employee benefit plans maintained by the Company for the benefit of its employees, directors and consultants shall be disregarded and not counted for
purposes of calculating the limitations imposed by the immediately preceding sentence. 
 “Person” shall
mean any individual, firm, corporation, trust, partnership or other entity, whether similar or dissimilar to the foregoing. 

“Preferred Stock” shall mean the Series A Preferred Stock, par value $0.01 per share, of the Company having the
rights and preferences set forth in the form of Certificate of Designation. 
 “Purchase Price” with
respect to each Right shall mean $100.00, as such amount may from time to time be adjusted as provided herein, and shall be payable in lawful money of the United States of America. All references herein to the Purchase Price shall mean the Purchase
Price as in effect at the time in question. 
 “Record Date” shall mean October 8, 2010.

 “Redemption Date” shall have the meaning set forth in Section 25. 

 “Redemption Price” with respect to each Right shall mean $0.001, as
such amount may from time to time be adjusted in accordance with Section 25. All references herein to the Redemption Price shall mean the Redemption Price in effect at the time in question. 

“Right Certificate” shall mean a certificate representing a Right in substantially the form attached hereto as
Exhibit B. 
 “Rights” shall mean the rights to purchase shares of Preferred Stock, Common Stock
and/or other securities, as the case may be, as provided in this Rights Agreement. 
 “Securities Act”
shall mean the Securities Act of 1933, as in effect on the date in question, unless otherwise specifically provided. 

“Stock Acquisition Date” shall mean 5:00 P.M., Pacific time, on the first date of public announcement by the
Company or an Acquiring Person that an Acquiring Person has become such. 
 “Subsidiary” shall mean,
with respect to any Person, any other Person of which securities or other ownership interests having ordinary voting power, in the absence of contingencies, to elect a majority of the board of directors of such Person (if such Person is a
corporation) or to participate in the management and control of such Person (if such Person is not a corporation), are at the time directly or indirectly owned by such first Person. 

The terms set forth below are defined in the Sections indicated below: 

 

					
	 Term
	 	  	  	Section
			
	Declaration Date	 		  	RECITAL
	Distribution Date	 		  	3(a)
	Exchange Consideration	 		  	16
	Expiration Date	 		  	7(a)
	Final Expiration Date	 		  	7(a)
	Formula Number	 		  	Exhibit A
	Principal Party	 		  	14(b)
	Summary of Rights	 		  	3(b)

Section 2. Appointment of Rights Agent. The Company hereby appoints the Rights Agent to act as agent for the
Company in accordance with the terms and conditions hereof, and the Rights Agent hereby accepts such appointment. The Company may from time to time appoint such co-Rights Agents as it may deem necessary or desirable. In the event the Company
appoints one or more co-Rights Agents, the respective duties of the Rights Agent and any co-Rights Agents shall be as the Company shall determine. 

Section 3. Issuance of Right Certificates. 

(a) Until the earlier of (i) the Close of Business on the tenth day after the Stock Acquisition Date (including any such date which
is after the Declaration Date and prior to the issuance of the Rights), and (ii) the Close of Business on the tenth day (or such later day as 

 
may be determined by action of the Board of Directors) after the date of the first public announcement (as defined in Rule 14d-2 under the Exchange Act) of a tender or exchange offer by any
Person (other than an Exempt Person) to acquire (when added to any equity securities as to which such Person is the Beneficial Owner immediately prior to such commencement) Beneficial Ownership of that number of shares of the issued and outstanding
Common Stock which would cause such Person to become an Acquiring Person pursuant to the terms of this Agreement (including any such date which is after the Declaration Date and prior to the issuance of the Rights) (the earlier of such dates
referred to in clauses (i) and (ii) of this Section 3(a) being herein referred to as the “Distribution Date”), (A) the Rights will be evidenced (subject to the provisions of Section 3(b)
hereof) by the certificates for the Common Stock registered in the names of the holders of the Common Stock (which certificates for shares of Common Stock shall also be deemed to be Right Certificates (as such term is hereinafter defined)) and not
by separate Right Certificates, and (B) the Rights (and the right to receive Right Certificates) will be transferable only in connection with the transfer of the underlying Common Stock; provided, that if the Distribution Date would be
prior to the Record Date, the Record Date shall be the Distribution Date, and provided, further, that (x) if, following the occurrence of the Stock Acquisition Date and prior to the Distribution Date, (1) a Person who is an
Acquiring Person shall have transferred or otherwise disposed of a number of shares of Common Stock of the Company in one transaction or a series of transactions (not directly or indirectly involving the Company or any of its Subsidiaries) such that
such Person is thereafter the Beneficial Owner of less than 20% (or (a) in the case of a Permitted Holder, the percentage the Permitted Holder may hold without ceasing to be a Permitted Holder, and (b) in the case of an Adverse Person, the
percentage such Person may hold as determined by the Board of Directors, which in no event may the Board of Directors require to be less than 10% of the shares of Common Stock then outstanding, so that the Board of Directors no longer declares such
Person to be an Adverse Person) of the outstanding Common Stock of the Company, (2) there are no other Persons, immediately following the occurrence of the event described in clause (1), who are Acquiring Persons, and (3) the Board of
Directors of the Company shall so approve, then, for purposes of this Agreement, the Stock Acquisition Date shall be deemed never to have occurred, and (y) if a tender or exchange offer referred to in clauses (ii) or (iii) above is
canceled or withdrawn prior to the Distribution Date, such offer shall be deemed, for purposes of this Agreement, never to have been made. As soon as practicable after the Company has notified the Rights Agent of the occurrence of the Distribution
Date, the Rights Agent will send, by first-class, insured, postage prepaid mail, to each record holder of the Common Stock as of the Close of Business on the Distribution Date, at the address of such holder shown on the records of the Company, one
or more Right Certificates, evidencing one Right for each share of Common Stock so held, subject to adjustment as herein provided. As of and after the Distribution Date, the Rights will be evidenced solely by such Right Certificates. 

(b) On the Record Date or as soon as practicable thereafter, the Company will send a copy of a Summary of Rights to Purchase Preferred
Stock, in substantially the form of Exhibit C hereto (the “Summary of Rights”), by first-class, postage prepaid mail, to each record holder of the Common Stock on the Record Date, as shown by the records of the
Company, at the address of such holder shown on the records of the Company. With respect to certificates for Common Stock outstanding as of the Record Date, until the Distribution Date (or the earlier redemption, exchange, expiration or termination
of the Rights), the Rights will be evidenced solely by such certificates for Common Stock registered in the names of the holders of the 

 
Common Stock and the registered holders of the Common Stock shall also be registered holders of the associated Rights. Until the Distribution Date (or the earlier redemption, exchange, expiration
or termination of the Rights), the surrender for transfer of any certificate for Common Stock in respect of which Rights have been issued shall also constitute the transfer of the Rights associated with the Common Stock represented by such
certificates. 
 (c) The Company will mail to any record holder of a Right (including, prior to the Distribution Date, a record
holder of Common Stock) a copy of this Rights Agreement, without charge, within ten Business Days of receipt of a written request therefor. 

(d) Rights shall be issued in respect of all shares of Common Stock which are issued or sold out of treasury after the Record Date but
prior to the Distribution Date (or the earlier redemption, exchange, expiration or termination of the Rights). All certificates for Common Stock issued or sold after the Record Date but prior to the earlier of the Distribution Date and the
Expiration Date shall be deemed also to be certificates for Rights and shall have impressed on, printed on, written on or otherwise affixed to them the following legend: 

This certificate also evidences and entitles the holder hereof to certain Rights as set forth in a Rights Agreement between IRIS
International, Inc. (the “Company”) and Continental Stock Transfer & Trust Company as Rights Agent, dated as of September 24, 2010, as it may from time to time be supplemented or amended pursuant to its terms (the
“Rights Agreement”), the terms of which are hereby incorporated herein by reference and a copy of which is on file at the principal executive offices of the Company. Under certain circumstances, as set forth in the Rights Agreement, such
Rights may be redeemed, may expire, or may be evidenced by separate certificates and no longer be evidenced by this certificate. The Company will mail to the holder of record of this certificate a copy of the Rights Agreement without charge within
ten business days after receipt of a written request therefor. Under certain circumstances, as set forth in the Rights Agreement, Rights issued to, or held by, any Person who is, was or becomes an Acquiring Person or an 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 certificates containing the foregoing legend, until the Distribution Date (or the earlier redemption, exchange, expiration or termination
of the Rights) the Rights associated with the Common Stock represented by such certificates shall be evidenced by such certificates alone, and the surrender for transfer of any of such certificates shall also constitute the transfer of the Rights
associated with the Common Stock represented by such certificates. Notwithstanding this clause (d), the omission of a legend shall not affect the enforceability of any part of this Rights Agreement or the rights of any holder of Rights. 

Section 4. Form of Right Certificates. The Right Certificates (and the forms of election to purchase 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 Rights Agreement, or as may 

 
be required to comply with any applicable law, rule or regulation or with any rule or regulation of any stock exchange or quotation system on which the Rights may from time to time be listed, or
to conform to usage. Subject to the provisions of Section 7, Section 11 and Section 24 hereof, the Right Certificates, whenever issued, shall be dated as of the Distribution Date, and on their face shall entitle
the holders thereof to purchase such number of one one-thousandth (1/1000th) of one share of Preferred Stock as shall be set forth therein at the Purchase Price set forth therein, but the number and type of shares of Preferred Stock, Common
Stock and other securities purchasable upon the exercise of each Right and the Purchase Price thereof shall be subject to adjustment as provided herein. To the extent provided in Section 7(f) hereof, certain Rights Certificates shall
contain the legend provided for therein. 
 Section 5. Execution, Countersignature and Registration. 

 (a) The Right Certificates shall be executed on behalf of the Company by its Chairman of the Board, its Chief Executive
Officer, President, Chief Operating Officer, Chief Financial Officer or any Vice President, either manually or by facsimile signature. The Right Certificates shall be countersigned by the Rights Agent via manual or facsimile signature and shall not
be valid for any purpose unless so countersigned. In case any officer of the Company whose manual or facsimile signature is affixed to the Right Certificates shall cease to be such officer of the Company before countersignature by the Rights Agent
and issuance and delivery by the Company, such Right Certificates, nevertheless, may be countersigned by the Rights Agent, issued and delivered with the same force and effect as though the Person who signed such Right Certificates had not ceased to
be such officer of the Company. Any Right Certificate may be signed on behalf of the Company by any Person who, at the actual date of the execution of such Right Certificate, shall be a proper officer of the Company to sign such Right Certificate,
although at the date of the execution of this Rights Agreement any such Person was not such an officer. 
 (b) Following the
Distribution Date, the Rights Agent will keep or cause to be kept, at its principal office or offices designated as the appropriate place for surrender of Right Certificates upon exercise or transfer, books for registration and transfer of the Right
Certificates issued hereunder. Such books shall show the names and addresses of the respective holders of the Right Certificates, the number of Rights evidenced on its face by each of the Right Certificates and the date of each of the Right
Certificates. 
 Section 6. Transfer, Split Up, Combination and Exchange of Right Certificates; Mutilated,
Destroyed, Lost or Stolen Right Certificates. 
 (a) Subject to the provisions of Section 7(f) and
Section 15 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 Right Certificate or Right Certificates (other than Right Certificates representing
Rights that have become null and void pursuant to Section 7(f) hereof or that have been exchanged pursuant to Section 16 hereof) may be transferred, split up, combined or exchanged for another Right Certificate or Right
Certificates, representing, in the aggregate, the same number of Rights as the Right Certificate or Right Certificates surrendered then represented. Any registered holder desiring to transfer, split up, combine or exchange any Right Certificate or
Certificates shall make such request in writing delivered to the Rights Agent, and 

 
shall surrender the Right Certificate or Right Certificates to be transferred, split up, combined or exchanged at the principal office or offices of the Rights Agent designated for such purpose.
Neither the Rights Agent nor the Company shall be obligated to take any action whatsoever with respect to the transfer of any such surrendered Right Certificate or Right Certificates until the registered holder shall have completed and signed the
certificate contained in the form of assignment on the reverse side of such Right Certificate and shall have provided such additional evidence of the identity of the Beneficial Owner, former Beneficial Owner and transferee Beneficial Owner (and
Associates and Affiliates of the foregoing) as the Company shall reasonably request. Thereupon the Rights Agent shall, subject to Section 7(f) and Section 15 hereof, countersign and deliver to the Person entitled thereto a
Right Certificate or Right Certificates, as the case may be, as so requested. The Company may require payment by such holder of a sum sufficient to cover any tax or governmental charge that may be imposed in connection with any transfer, split up,
combination or exchange of Right Certificates. 
 (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 Right Certificate, and, in case of loss, theft or destruction, of indemnity or security reasonably satisfactory to them, and reimbursement to the Company and the Rights Agent of
all reasonable expenses incidental thereto, and upon surrender to the Rights Agent and cancellation of the Right Certificate if mutilated, the Company will execute and deliver a new Right Certificate of like tenor to the Rights Agent for
countersignature and delivery to the registered owner in lieu of the Right Certificate so lost, stolen, destroyed or mutilated. 

(c) Notwithstanding any other provision hereof, the Company and the Rights Agent may amend this Rights Agreement to provide for
uncertificated Rights in addition to or in place of Rights evidenced by Right Certificates. 
 Section 7.
Exercise of Rights; Purchase Price; Expiration Date of Rights. 
 (a) Subject to Section 7(f), each Right
shall entitle the registered holder thereof, upon exercise thereof as provided herein, to purchase for the Purchase Price at any time after the Distribution Date and prior to the earlier of (i) the Close of Business on September 24, 2020
(the “Final Expiration Date”), (ii) the Redemption Date and (iii) the time at which all exercisable Rights are exchanged pursuant to Section 16 hereof (the earlier of (i), (ii) and (iii) being
herein referred to as the “Expiration Date”), one one-thousandth (1/1000th) of a share of Preferred Stock, subject to adjustment from time to time as provided in Sections 11, 12 and 14 hereof.

 (b) The registered holder of any Right Certificate may exercise the Rights evidenced thereby (except as otherwise provided
herein) in whole or in part at any time after the Distribution Date, upon surrender of the Right Certificate, with the form of election to purchase on the reverse side thereof duly executed, to the Rights Agent at the principal office of the Rights
Agent, together with payment of the Purchase Price for each one one-thousandth (1/1000th) of a share of Preferred Stock as to which the Rights are exercised, at or prior to the Expiration Date. 

 (c) The Purchase Price for each one one-thousandth (1/1000th) of a share of Preferred
Stock pursuant to the exercise of a Right shall initially be $100.00, shall be subject to adjustment from time to time as provided in Sections 11, 12 and 14 hereof and shall, except as otherwise provided in this
Section 7(c), be payable in lawful money of the United States of America in accordance with Section 7(d) below. In lieu of the cash payment referred to in the immediately preceding sentence, following the occurrence of a
Distribution Date, the registered holder of a Right Certificate may exercise the Rights evidenced thereby (except as otherwise provided herein) in whole or in part upon surrender of the Right Certificate together with an election to exercise such
Rights without payment of cash on the reverse side thereof duly completed. With respect to any such Rights as to which such an election is made, the holder shall receive a number of one one-thousandths (1/1000ths) of a share of Preferred Stock,
Common Stock and/or other securities, as the case may be, having a value equal to the difference between (i) the value of the Preferred Stock, Common Stock and/or other securities, as the case may be, that would have been issuable upon payment
of the Purchase Price and (ii) the Purchase Price. For purposes of this Section 7(c), the value of any securities shall be the Current Market Price thereof (or of the security to which such security is deemed for purposes of this
Agreement to be an equivalent) on the Trading Day immediately preceding the Distribution Date. 
 (d) Upon receipt of a Right
Certificate representing exercisable Rights, with the form of election to purchase and the certificate duly executed, accompanied by payment, with respect to each Right so exercised, of the Purchase Price per one one-thousandth (1/1000th) of a
share of Preferred Stock, Common Stock and/or other securities, as the case may be, to be purchased, and an amount equal to any applicable transfer tax, in cash or by certified check or bank draft payable to the order of the Company, or a duly
completed election to exercise without payment of cash, the Rights Agent shall, subject to Section 22(k) hereof, thereupon promptly (i)(A) requisition from any transfer agent of the Preferred Stock, Common Stock and/or other securities,
as the case may be, (or make available, if the Rights Agent is the transfer agent) certificates for the total number of shares of Preferred Stock, Common Stock and/or other securities, as the case may be, to be purchased or acquired and/or
(B) requisition from the depositary agent depositary receipts representing such number of fractional shares of Preferred Stock, Common Stock and/or other securities, as the case may be, as are to be purchased, in which case certificates for the
fractional shares of Preferred Stock, Common Stock and/or other securities, as the case may be, so represented shall be deposited with the depositary agent (and the Company hereby irrevocably authorizes and directs its transfer agent and any such
depositary agent to comply with all such requests), (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 15 hereof, (iii) promptly
after receipt of such certificates or depositary receipts, cause the same to be delivered to or upon the order of the registered holder of such Right Certificate, registered in such name or names as may be designated by such holder, and
(iv) when appropriate, after receipt thereof, promptly deliver any such cash to or upon the order of the registered holder of such Right Certificate. In the event that the Company is obligated to issue other securities (including Common Stock
of the Company) and/or distribute cash or other property pursuant to Sections 9, 11, 12 or 14 hereof, the Company will make all arrangements necessary so that such other securities, cash or other property are available
for distribution by the Rights Agent, if and when appropriate. 
 (e) In case the registered holder of any Right Certificate
shall exercise less than all the Rights evidenced thereby, a new Right Certificate evidencing Rights equivalent to the Rights remaining unexercised shall be issued by the Rights Agent and delivered to, or upon the order of, the registered holder of
such Right Certificate, registered in such name or names as may be designated by such holder, subject to the provisions of Section 15 hereof. 

 (f) Notwithstanding anything in this Rights Agreement to the contrary, from and after the
Distribution Date, any Rights beneficially owned by (i) an Acquiring Person or any Affiliate or Associate thereof, (ii) a transferee of an Acquiring Person or any Affiliate or Associate thereof, (iii) a transferee of an Acquiring
Person (or Associate or Affiliate thereof) who becomes the transferee of such Rights concurrently with such Acquiring Person becoming such or at any time thereafter, or (iv) a transferee of an Acquiring Person (or Associate of Affiliate
thereof) who becomes a transferee prior to the Acquiring Person becoming such and receives the Rights pursuant to either (A) a transfer (whether or not for consideration) by the Acquiring Person to holders of its stock or other equity
securities or to any Person with whom the Acquiring Person has any continuing agreement, arrangement or understanding regarding the transferred Rights or (B) a transfer which the Board of Directors has determined is part of a plan, arrangement
or understanding which has as a primary purpose or effect the avoidance of this Section 7(f), shall be null and void, and any existing or subsequent holder of any such Right shall not have any right to exercise or transfer any such
Right. Any Right Certificate issued pursuant to this Rights Agreement that represents Rights beneficially owned by any Person referred to in clause (A) or (B) above, and any Right Certificate issued upon transfer, exchange, replacement or
adjustment of any other Right Certificate referred to in this sentence, shall contain (to the extent feasible) the following legend: 

The Rights represented by this Right Certificate are or were beneficially owned by a Person who is, was or became an
Acquiring Person or an Affiliate or an Associate of an Acquiring Person (as those terms are defined in the Rights Agreement). This Right Certificate and the Rights represented hereby may become null and void in the circumstances specified in the
Rights Agreement. 
 The Company shall use all reasonable efforts to comply with this Section 7(f), but neither it
nor the Rights Agent shall have any liability to any Person as a result of the failure to make any determination with respect to an Acquiring Person, or its Associates, Affiliates or any transferees of the foregoing. 

(g) Notwithstanding anything in this Agreement to the contrary, neither the Rights Agent nor the Company shall be obligated to undertake
any action whatsoever with respect to a registered holder of Rights upon the occurrence of any purported exercise as set forth in this Section 7 unless such registered holder shall have (i) completed and signed the certificate
contained in the form of election to purchase set forth on the reverse side of the Right Certificate surrendered for such exercise and (ii) provided such additional evidence of the identity of the Beneficial Owner (or former Beneficial Owner)
or Affiliates or Associates thereof as the Company shall reasonably request. 
 Section 8. Cancellation and
Destruction of Right Certificates. All Right Certificates surrendered or presented for the purpose of exercise, transfer, split-up, combination or exchange shall, and any Right Certificate representing Rights that have become null and void
and non-transferable pursuant to Section 7(f) surrendered or presented for any purpose shall, if surrendered to the Company or to any of its agents, be delivered to the Rights Agent for

 
cancellation or in canceled form, or, if surrendered to the Rights Agent, shall be canceled by it, and no Right Certificates shall be issued in lieu thereof except as expressly permitted by any
of the provisions of this Rights Agreement. The Company shall deliver to the Rights Agent for cancellation and retirement, and the Rights Agent shall so cancel and retire, any Right Certificate purchased or acquired by the Company. Subject to
applicable law and regulation, the Rights Agent shall maintain in a retrievable database electronic records of all cancelled or destroyed Rights Certificates which have been cancelled or destroyed by the Rights Agent. The Rights Agent shall maintain
such electronic records or physical records for the time period required by applicable law and regulation. Upon written request of the Corporation (and at the expense of the Corporation), the Rights Agent shall provide to the Corporation or its
designee copies of such electronic records or physical records relating to Rights Certificates cancelled or destroyed by the Rights Agent. 

Section 9. Reservation and Availability of Shares. 

(a) The Company covenants and agrees that it shall use its best efforts to at all times cause to be reserved and kept available out of its
authorized and unissued shares of Preferred Stock, Common Stock and/or other securities, as the case may be, the number of shares of Preferred Stock, Common Stock and/or other securities, as the case may be, that, as provided in this Agreement, will
be sufficient to permit the exercise in full of all outstanding Rights. 
 (b) In the event that there shall not be sufficient
shares of Preferred Stock, Common Stock and/or other securities, as the case may be, issued but not outstanding or authorized but unissued to permit the exercise or exchange of Rights in accordance with Section 7 and
Section 16, the Company covenants and agrees that it will take all such action as may be necessary to authorize additional Preferred Stock, Common Stock and/or other securities, as the case may be, for issuance upon the exercise or
exchange of Rights pursuant to Section 7 and Section 16; provided, however, that if the Company is unable to cause the authorization of additional shares of Preferred Stock, Common Stock and/or other securities,
as the case may be, then the Company shall, or in lieu of seeking any such authorization, the Company may, to the extent necessary and permitted by applicable law and any agreements or instruments in effect prior to the Distribution Date to which it
is a party, (A) upon surrender of a Right, pay cash equal to the Purchase Price in lieu of issuing Preferred Stock, Common Stock and/or other securities, as the case may be, and requiring payment therefor, (B) upon due exercise of a Right
and payment of the Purchase Price due and payable with respect to each Right which is exercised, distribute a combination of Preferred Stock, Common Stock, cash and/or other equity securities and/or debt securities having an aggregate value equal to
the value of the Preferred Stock, Common Stock and/or other securities, as the case may be, which otherwise would have been issuable pursuant to Section 7 or Section 16. To the extent that any legal or contractual
restrictions (pursuant to agreements or instruments in effect prior to the Distribution Date to which it is party) prevent the Company from paying the full amount payable in accordance with the foregoing sentence, the Company shall pay to holders of
the Rights as to which such payments are being made all amounts which are not then restricted on a pro rata basis as such payments become permissible under such legal or contractual restrictions until such payments have been paid in full.

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

(e) So long as the shares of Preferred Stock, Common Stock and/or other securities, as the case may be, issuable upon the exercise of the
Rights may be listed on any national securities exchange or quoted by FINRA, the Company shall use its best efforts to cause, from and after such time as the Rights become exercisable, all shares reserved for such issuance to be listed on such
exchange or quoted by FINRA upon official notice of issuance of such exercise. 
 (f) The Company shall, unless an appropriate
exemption from the provisions of the Act is available, use its best efforts (i) to file, as soon as practicable following the Stock Acquisition Date or at such earlier date as may be required by law, as the case may be, a registration statement
under the 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 Act and the rules and regulations promulgated by the Securities Exchange Commission thereunder) until the earlier of (A) the date as of
which the Rights are no longer exercisable for such securities and (B) the expiration of the Rights. The Company will also take such action as may be appropriate to ensure compliance with the securities or “blue sky” laws of the
various states in connection with the exercisability of the Rights. The Company may temporarily suspend, for a period of time not to exceed 90 days after the date set forth in clause (i) of the first sentence of this Section 9(f),
the exercisability of the Rights in order to prepare and file such registration statement and permit it to become effective; provided, however, that no such suspension shall remain effective after, and the Rights without any further action by the
Company or any other Person become exercisable immediately upon, the effectiveness of such Registration Statement. Upon any such suspension, the Company shall issue a public announcement stating that the exercisability of the Rights has been
temporarily suspended, as well as a public announcement at such time as the suspension is 

 
no longer in effect. Notwithstanding any provision of this Agreement to the contrary, the Rights shall not be exercisable (x) unless and until the registration statement under the Act
referred to above shall have been declared effective by the Securities and Exchange Commission, (y) in any jurisdiction, unless and until any requisite state securities or “blue sky” qualification in such jurisdiction shall have been
obtained, and (z) in a jurisdiction in which the exercise of such Right shall not then be permitted under applicable law. 

Section 10. Record Date. Each Person (other than the Company) in whose name any certificate or depository
receipt for Preferred Stock, Common Stock and/or other securities, as the case may be, is issued upon the exercise of Rights shall for all purposes be deemed to have become the holder of record of such Preferred Stock, Common Stock and/or other
securities, as the case may be, represented thereby on, and such certificate or depository receipt shall be dated the date upon which the Right Certificate evidencing such Rights was duly surrendered and payment of the Purchase Price (and any
applicable 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 for the Preferred Stock, Common Stock and/or other securities are closed,
such Person shall be deemed to have become the record holder of such shares of Preferred Stock, Common Stock and/or other securities on, and such certificate or depository receipt shall be dated, the next succeeding Business Day on which the
transfer books of the Company for the Preferred Stock, Common Stock and/or other securities are open. Prior to the exercise of the Rights evidenced thereby, the holder of a Right Certificate shall not be entitled to any rights of a holder of shares
of Preferred Stock, Common Stock and/or other securities of the Company with respect to 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. Adjustments to Purchase Price, Number and Kind of Shares or Number of Rights. The Purchase Price,
the number and kind of shares subject to purchase upon exercise of each Right and the number of Rights outstanding are subject to adjustment from time to time as provided in this Section 11. 

(a)(i) In the event that the Company shall at any time after the date of this Rights Agreement (A) declare or pay a dividend on the
Preferred Stock which is payable in shares of Preferred Stock or other securities of the Company, (B) subdivide or split the outstanding shares of Preferred Stock into a greater number of shares, (C) combine or consolidate the outstanding
shares of Preferred Stock into a smaller number of shares of Preferred Stock or effect a reverse split of the outstanding shares of Preferred Stock or (D) issue any shares of its capital stock in a reclassification of the Preferred Stock
(including any such reclassification in connection with a consolidation or merger in which the Company is the continuing or surviving entity), except as otherwise provided in this Section 7(f) or 11, the Purchase Price in effect
at the time of the record date for such dividend or the effective date of such subdivision, combination or reclassification, and the number and kind of shares of Preferred Stock or capital stock or interests therein issuable upon exercise of a Right
on such date, shall be proportionately adjusted so that the holder of any Right exercised after such time shall be entitled to receive, upon payment of an amount equal to (x) the Purchase Price in effect immediately prior to the record date or
effective date of such dividend, subdivision, combination or reclassification multiplied by (y) the number of one one-thousandth (1/1000th) of a share of 

 
Preferred Stock, or the number of shares of capital stock, as the case may be, as to which a Right was exercisable immediately prior to such date, the aggregate number and kind of shares of
Preferred Stock or of capital stock or interests therein which, if such Right had been exercised immediately prior to such date he would have owned upon such exercise and been entitled to receive, or would be deemed to have owned, by virtue of such
dividend, subdivision, combination or reclassification. If an event occurs which would require an adjustment under both this Section 11(a)(i) and Section 11(a)(ii) hereof, the adjustment provided for in this
Section 11(a)(i) shall be in addition to, and shall be made prior to, any adjustment required pursuant to Section 11(a)(ii) hereof. 

(ii) Subject to the second proviso of the first sentence of Section 3(a), and Sections 14(a) and 16 of this
Agreement, in the event that the Stock Acquisition Date occurs, then, subject to the last sentence of Section 25(b) hereof, and in each such case, proper provision shall be made so that each holder of a Right (except as otherwise
provided in Section 7(f) hereof) thereafter (or if the Distribution Date has not occurred, upon the Distribution Date) shall have the right to receive, upon exercise thereof at a price equal to the current Purchase Price in accordance
with this Rights Agreement, such number of one one-thousandth (1/1000th) of a share of Preferred Stock as shall equal the result obtained by multiplying the Purchase Price by a fraction, the numerator of which is the number of one
one-thousandth (1/1000th) of a share of Preferred Stock for which a Right is then exercisable, and the denominator of which is 50% of the then Current Market Price of the Common Stock on the Stock Acquisition Date. 

(b) In case the Company shall fix a record date for the issuance of rights, options or warrants to all holders of shares of Preferred
Stock entitling them (for a period expiring within 45 calendar days after such record date) to subscribe for or purchase Preferred Stock (or securities having the same rights, privileges and preferences as the Preferred Stock (“Equivalent
Shares”)) or securities convertible into Preferred Stock or Equivalent Shares at a price per share of Preferred Stock or per Equivalent Share (or having a conversion or exercise price per share of Preferred Stock, if a security
convertible into or exercisable for Preferred Shares or Equivalent Shares) less than the Current Market Price per share of Preferred Stock on such record date, the Purchase Price to be in effect after such record date shall be determined by
multiplying the Purchase Price in effect immediately prior to such date by a fraction, the numerator of which shall be the sum of (i) the number of shares of Preferred Stock and Equivalent Shares outstanding on such record date, plus
(ii) the number of shares of Preferred Stock which the aggregate offering price of the total number of shares of Preferred Stock and/or Equivalent Shares to be so offered (and/or the aggregate initial conversion price of the convertible
securities so to be offered) would purchase at such Current Market Price and the denominator of which shall be the sum of (A) the number of shares of Preferred Stock and Equivalent Shares outstanding on such record date plus (B) the number
of additional shares of Preferred Stock and/or Equivalent Shares to be offered for subscription or purchase (or into which the convertible securities so to be offered are initially convertible). In case such subscription price may be paid by
delivery of consideration part or all of which shall be in a form other than cash, the value of such consideration shall be as determined in good faith by the Board of Directors of the Company, whose determination shall be described in a statement
filed with the Rights Agents and shall be conclusive and binding on the Rights Agent and the holders of Rights. Shares of Preferred Stock owned by or held for the account of the Company shall not be deemed outstanding for the purpose of any such
computation. Such adjustment shall be made successively whenever such a record date is fixed; and in the event that such rights, options or warrants are not so issued, the Purchase Price shall be adjusted to be the Purchase Price which would then be
in effect if such record date had not been fixed. 

 (c) In case the Company shall fix a record date for the making of a distribution to all
holders of shares of Preferred Stock (including any such distribution made in connection with a consolidation or merger in which the Company is the continuing or surviving entity) of evidences of indebtedness or assets (other than a regular periodic
cash dividend or a dividend payable in shares of Preferred Stock), or convertible securities, subscription rights or warrants (excluding those referred to in Section 11(b) hereof), the Purchase Price to be in effect after such record
date shall be determined by multiplying the Purchase Price in effect immediately prior to such record date by a fraction, the numerator of which shall be the difference between (i) the Current Market Price per share of Preferred Stock on such
record date, minus (ii) the fair market value (as determined in good faith by the Board of Directors of the Company, whose determination shall be described in a statement filed with the Rights Agent and shall be conclusive and binding on the
Rights Agent and the holder of Rights) of the portion of the assets or evidences of indebtedness to be so distributed or of such convertible securities, subscription rights or warrants applicable to one share of Preferred Stock and the denominator
of which shall be such Current Market Price per share of Preferred Stock. Such adjustments shall be made successively whenever such a record date is fixed; and in the event that such distribution is not so made, the Purchase Price shall again be
adjusted to the Purchase Price which would then be in effect if such record date had not been fixed. 
 (d) Anything herein to
the contrary notwithstanding, no adjustment to the Purchase Price shall be required unless such adjustment would require an increase or decrease of at least 1% to the Purchase 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
one one-millionth of a share of Preferred Stock, or one one-thousandth interest in any other share or security, as the case may be, whichever is of lesser value. 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 years from the date of the transaction which mandates such adjustment or (ii) the Expiration Date. 

(e) In the event that at any time, as a result of an adjustment made pursuant to Sections 11, 12 or 14 hereof, the
holder of any Right thereafter exercised shall be entitled to receive upon exercise of such Right any securities other than shares of Preferred Stock or interests therein, thereafter the number or amount of such other securities so receivable upon
exercise of any Right and the Purchase 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 Stock contained in
Section 11(a), (b), (c), (d), (f), (g), (h), (i), (j) and (l), and the provisions of Sections 7, 9, 10, 12, 14 and 15 hereof
with respect to the Preferred Stock shall apply on like terms to any such other securities. 
 (f) All Rights originally issued
by the Company subsequent to any adjustment made to the Purchase Price hereunder shall evidence the right to purchase, at the adjusted Purchase Price, the number of one one-thousandth (1/1000th) of a share of Preferred Stock purchasable from
time to time hereunder upon exercise of the Rights, all subject to further adjustments as provided herein. 

 (g) Unless the Company shall have exercised its election as provided in
Section 11(h) hereof, upon each adjustment of the Purchase Price as a result of the calculations made in Section 11(a), (b) and (c) hereof, each Right outstanding immediately prior to the making of
such adjustment shall thereafter evidence the right to purchase, at the adjusted Purchase Price, that number of one one-thousandth (1/1000th) of a share of Preferred Stock (calculated to the nearest one one-millionth of a share of Preferred
Stock) obtained by (i) multiplying (A) the number of one one-thousandth (1/1000th) of a share of Preferred Stock covered by a Right immediately prior to this adjustment by (B) the Purchase Price in effect immediately prior to
such adjustment of the Purchase Price and (ii) dividing the product so obtained by the Purchase Price in effect immediately after such adjustment of the Purchase Price. 

(h) The Company may elect on or after the date of any adjustment of the Purchase Price to adjust the number of Rights, in lieu of any
adjustment in the number of one one-thousandth (1/1000th) of a share of Preferred Stock purchasable upon the exercise of a Right. Each of the Rights outstanding after such adjustment of the number of Rights shall be exercisable for the number
of one one-thousandth (1/1000th) of a share of Preferred Stock for which such 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 one-millionth of a share of Preferred Stock) obtained by dividing the Purchase Price in effect immediately prior to adjustment of the Purchase Price by the Purchase Price in effect immediately after adjustment
of the Purchase Price. The Company shall make a public announcement of its election to adjust the number of Rights, indicating the record date for the adjustment, and, if known at the time, the amount of the adjustment to be made. This record date
may be the date on which the Purchase Price is adjusted or any day thereafter, but, if the Right Certificates have been issued, shall be at least 10 days later than the date of the public announcement. If Right Certificates have been issued, upon
each adjustment of the number of Rights pursuant to this Section 11(h), the Company shall, as promptly as practicable, cause to be distributed to holders of record of Right Certificates on such record date Right Certificates evidencing,
subject to Section 15 hereof, the additional Rights to which such holders shall be entitled as a result of such adjustment, or, at the option of the Company, shall cause to be distributed to such holders of record in substitution and
replacement for the Right Certificates held by such holders prior to the date of adjustment, and upon surrender thereof, if required by the Company, new Right Certificates evidencing all the Rights to which such holder shall be entitled after such
adjustment. Right Certificates so to be distributed shall be issued, executed and countersigned in the manner provided for herein (and may bear, at the option of the Company, the adjusted Purchase Price) and shall be registered in the names of the
holders of record of Right Certificates on the record date specified in the public announcement. 
 (i) Irrespective of any
adjustment or change in the Purchase Price or the number of one one-thousandth (1/1000th) of a share of Preferred Stock issuable upon the exercise of the Rights, the Right Certificates theretofore and thereafter issued may continue to express
the Purchase Price and the number of one one-thousandth (1/1000th) of a share of Preferred Stock which were expressed in the initial Right Certificates issued hereunder. 

 (j) Before taking any action that would cause an adjustment reducing the Purchase Price
below the then par or stated value, if any, of the Preferred Stock issuable upon exercise of the Rights, the Company shall take any 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, such number of shares of Preferred Stock at such adjusted Purchase Price. 
 (k) In any
case in which this Section 11 shall require that an adjustment in the Purchase Price be made effective as of a record date for a specified event, the Company may elect to defer until the occurrence of such event the issuing to the holder
of any Right exercised after such record date the number of shares of Preferred Stock and other securities of the Company, if any, issuable upon such exercise on the basis of 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 of Preferred Stock upon the occurrence of the event requiring such adjustment. 

(l) Anything in this Section 11 to the contrary notwithstanding, the Company shall be entitled to make such reductions in the
Purchase Price, in addition to those adjustments expressly required by this Section 11, as and to the extent that it in its sole discretion shall determine to be advisable in order that any (i) consolidation or subdivision of the
Preferred Stock, (ii) issuance wholly for cash of any shares of Preferred Stock at less than the Current Market Price, (iii) issuance wholly for cash of shares of Preferred Stock or securities which by their terms are convertible into or
exchangeable for shares of Preferred Stock, (iv) dividends on the Preferred Stock payable solely in Preferred Stock or (v) issuance of rights, options or warrants referred to hereinabove in this Section 11, hereafter made by
the Company to the holders of its Preferred Stock, shall not be taxable to such stockholders. 
 (m) The Company covenants and
agrees that it shall not at any time after the Distribution Date (i) consolidate with, (ii) merge with or into, or (iii) sell or transfer, in one transaction or a series of related transactions, assets or earning power aggregating
more than 50% of the assets or earning power of the Company and its Subsidiaries taken as a whole, to any other Person or Persons (other than any of its subsidiaries in one or more transactions each of which complies with Section 11(o)
hereof) if (A) at the time or immediately after such consolidation, merger or sale there are any rights, warrants or other instruments outstanding or agreements or arrangements in effect which would substantially diminish or otherwise eliminate
the benefits intended to be afforded by the Rights or (B) prior to, simultaneously with or immediately after such consolidation, merger or sale, the stockholders of a Person who constitutes, or would constitute, the “Principal Party”
for the purposes of Section 14(a) hereof shall have received a distribution of Rights previously owned by such Person or any of its Affiliates and Associates. 

(n) In the event that at any time after the date of this Agreement and prior to the Distribution Date, the Company shall (i) declare
or pay any dividend on the Common Stock payable in Common Stock or (ii) effect a subdivision, combination or consolidation of the Common Stock (by reclassification or otherwise then by payment of dividends in Common Stock) into a greater or
lesser number of shares of Common Stock, then in any such case (i) the number of one one-thousandth (1/1000th) of shares of Preferred Stock purchasable after such event upon proper exercise of each Right shall be determined by multiplying
the number of one 

 
one-thousandth (1/1000th) of a share of Preferred Stock so purchasable immediately prior to such event by a fraction, the numerator of which is the number of shares of Common Stock
outstanding immediately before such event and the denominator of which is the number of shares of Common Stock outstanding immediately after such event, and (ii) each share of Common Stock outstanding immediately after such event shall be
issued with respect to it that number of rights which each share of Common Stock outstanding immediately prior to such event has issued with respect to it. The adjustments provided for in this Section 11(n) shall be made successively
whenever such a dividend is declared or paid or such a subdivision, combination or consolidation is effected. 
 (o) The Company
covenants and agrees that after the Distribution Date it will not, except as permitted by Section 25 or Section 28 hereof, take (or permit any Subsidiary to take) any action if at the time such action is taken it is
reasonably foreseeable that such action will substantially diminish or otherwise eliminate the benefits intended to be afforded by the Rights. 

Section 12. Certain Adjustments. 

(a) To preserve the actual or potential economic value of the Rights, if at any time after the date of this Rights Agreement there shall
be any change in the Common Stock or the Preferred Stock, whether by reason of stock dividends, stock splits, recapitalizations, mergers, consolidations, combinations or exchanges of securities, split-ups, split-offs, spin-offs, liquidations, other
similar changes in capitalization, any distribution or issuance of cash, assets, evidences of indebtedness or stock subscription rights, options or warrants to holders of the Common Stock or Preferred Stock, as the case may be or otherwise (other
than a distribution of the Rights or regular quarterly cash dividends or event described in Section 11 or 14), then in such event the Board of Directors of the Company shall make such appropriate adjustments in the number of
shares of Preferred Stock, Common Stock or other securities, as applicable issuable upon exercise of each Right, the Purchase Price and Redemption Price in effect at such time and the number of Rights outstanding at such time (including the number
of Rights or fractional Rights associated with each share of Common Stock) such that following such adjustment such event shall not have had the effect of reducing or limiting the benefits the holders of the Rights would have had absent such event.

 (b) All Rights originally issued by the Company subsequent to any adjustment made to the amount of Preferred Stock or other
securities relating to a right shall evidence the right to purchase, for the Purchase Price, the adjusted number and kind of securities purchasable from time to time hereunder upon exercise of the Rights, all subject to further adjustment as
provided herein. 
 (c) Irrespective of any adjustment or change in the Purchase Price or the number of shares of Preferred
Stock or number or kind of other securities issuable upon the exercise of the Rights, the Right Certificates theretofore and thereafter issued may continue to express the terms which were expressed in the initial Right Certificates issued hereunder.

 (d) In any case in which action taken pursuant to Section 12(a) requires that an
adjustment 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 the Preferred Stock and/or other
securities, if any, issuable upon such exercise over and above the Preferred Stock and/or other securities, if any, issuable before giving effect 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 securities upon the occurrence of the event requiring such adjustment. 

Section 13. Certificate of Adjusted Purchase Price or Number of Shares. Whenever an adjustment is made as
provided in Section 11, 12 or 14 hereof, the Company shall (a) promptly prepare a certificate setting forth such adjustment and a brief statement of the facts accounting for such adjustment, (b) promptly file with
the Rights Agent and with each transfer agent for the Preferred Stock and Common Stock a copy of such certificate, and (c) mail a brief summary thereof to each holder of a Right Certificate (or, if prior to the Distribution Date, to each holder
of a certificate representing Common Stock) in accordance with Section 26 hereof. The Rights Agent shall be fully protected in relying on any such certificate and on any adjustment therein contained. 

Section 14. Consolidation, Merger or Sale or Transfer of Assets or Earning Power. 

(a) In the event that, directly or indirectly, (x) the Company shall consolidate with, or merge with and into, any other Person
(other than the Company or a Subsidiary of the Company in one or more transactions each of which complies with Section 11(o) hereof), and the Company shall not be the continuing or surviving entity of such consolidation or merger,
(y) any Person (other than a Subsidiary of the Company in one or more transactions each of which complies with Section 11(o) hereof) shall consolidate with, or merge with and into the Company, and the Company shall be the continuing
or surviving entity of such merger and, in connection with such merger, all or part of the Common Stock shall be changed into or exchanged for stock or other securities of any other Person or cash or any other property, or (z) the Company shall
sell or otherwise transfer (or one or more of its Subsidiaries shall sell or otherwise transfer), in one transaction or a series of related transactions, assets or earning power aggregating more than 50% of the assets or earning power of the Company
and its Subsidiaries (taken as a whole and calculated on the basis of the Company’s most recent regularly prepared financial statements) to any other Person or Persons (other than a Subsidiary of the Company in one or more transactions each of
which complies with Section 11(o) hereof), then, and in each such case, appropriate provision shall be made so that (i) each holder of a Right, except as provided in Section 7(f) hereof, shall thereafter have the right
to receive, upon the exercise thereof at the then current Purchase Price, in accordance with the terms of this Agreement, such number of validly authorized and issued, fully paid and nonassessable shares of freely tradable Common Stock of the
Principal Party (as hereinafter defined, including the Company as successor thereto or as the surviving entity), not subject to any rights of call or first refusal, liens, encumbrances or other claims, as shall be equal to the result obtained by
(A) multiplying the then current Purchase Price by the number of one one-thousandth (1/1000th) of a share of Preferred Stock for which a Right is exercisable immediately prior to the first occurrence of any event described in
Section 14(a)(x), (y) or (z) hereof, and (B) dividing that product (which, following the first occurrence of any event referred to in Section 14(a)(x), (y) or (z), shall be
referred to as the “Purchase Price” for each Right and for all purposes of this Agreement) by 50% of the Current Market Price per 

 
share of Common Stock of such Principal Party on the date of consummation of such consolidation, merger, sale or transfer; (ii) the Principal Party shall thereafter be liable for, and shall
assume, by virtue of such consolidation, merger, sale or transfer, all the obligations and duties of the Company pursuant to this Agreement; (iii) the term “Company” shall thereafter be deemed to refer to such Principal Party, it
being specifically intended that the provisions of Section 11 hereof shall apply to such Principal Party and (iv) such Principal Party shall take such steps (including, but not limited to, the authorization and reservation of a
sufficient number of shares of its Common Stock to permit exercise of all outstanding Rights in accordance with this Section 14(a)) in connection with such consummation as may be necessary to assure that the provisions hereof shall
thereafter be applicable, as nearly as reasonably may be, in relation to the shares of its Common Stock thereafter deliverable upon the exercise of the Rights, provided, that upon the subsequent occurrence of any merger, consolidation, sale
of all or substantially all of the assets, recapitalization, reclassification of shares, reorganization or other extraordinary transaction in respect of such Principal Party, each holder of the Right shall thereupon be entitled to receive, upon
exercise of a Right and payment of the Purchase Price, such cash, shares, rights, warrants and other property which holder would have been entitled to receive had he, at the time of such transaction, owned the shares of Common Stock of the Principal
Party purchasable upon the exercise of a Right, 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 and (v) the provisions of Section 11(a)(ii) hereof shall be of no effect following the occurrence of any event described in Section 14(a)(x),
(y) or (z). 
 (b) “Principal Party” shall mean 

(i) in the case of any transaction described in clause (x) or (y) of Section 14(a) hereof: (A) the Person
that is the issuer of any securities into which shares of Common Stock of the Company are converted in such merger or consolidation, or, if there is more than one such issuer, the issuer the Common Stock of which has 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, or, if there is more than one such Person, the Person the Common Stock of which has 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 corporation if it survives) or (z) the Person resulting from the
consolidation; and 
 (ii) in the case of any transaction described in clause (z) of Section 14(a) hereof, the
Person that is the party receiving the greatest portion of the assets or earning power transferred pursuant to such transaction or transactions or, if each person that is a party to such transaction or transactions receives the same portion of the
assets or earning power so transferred or if the Person receiving the greatest portion of the assets or earning power cannot be determined, whichever of such Persons as is the issuer of Common Stock having the greatest aggregate market value of
shares outstanding; provided, however, that in any such case described in the foregoing clause (b)(i) or (ii), (A) if the Common Stock of such Person is not at such time and has not been continuously over the preceding 12-month
period registered under Section 12 of the Exchange Act, and such Person is a direct or indirect Subsidiary of another Person the Common Stock of which is and has been so registered, “Principal Party” shall refer to such other

 
Person; and (B) if such Person is a Subsidiary, directly or indirectly, of more than one Person, the Common Stock of two or more of which are and have been so registered, “Principal
Party” shall refer to whichever of such Persons is the issuer of the Common Stock having the greatest aggregate market value of shares outstanding, or (C) 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 (A) and (B) 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 14 in the same ratio as its interest in such Person bears to the total of such interests.

 (c) The Company shall not enter into any transaction of the kind referred to in this Section 14 if at the time of
such transaction there are 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. The Company shall not agree to consummate or consummate any such consolidation, merger, sale or transfer unless the Principal Party shall have a sufficient number of authorized shares of its Common Stock which have not been
issued or reserved for issuance to permit the exercise in full of the Rights in accordance with this Section 14 and unless prior thereto the Company and such Principal Party shall have executed and delivered to the Rights Agent a
supplemental agreement so providing, confirming that the requirements of Sections 14(a) and (b) hereof shall promptly be performed in accordance with their terms and that such consolidation, merger, sale or transfer of assets
shall not result in a default by the Principal Party under this Agreement as the same shall have been assumed by the Principal Party pursuant to Sections 14(a) and (b) hereof and further providing that, as soon as practicable
after the date of any consolidation, merger or sale of assets mentioned in Section 14(a), the Principal Party will: 

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

(ii) use its best efforts, if the Common Stock of the Principal Party shall become listed on a national securities exchange, to list (or
continue the listing of) the Rights and the securities purchasable upon exercise of the Rights on such securities exchange and, if the Common Stock of the Principal Party shall not be listed on a national securities exchange, to cause the Rights and
the securities purchasable upon exercise of the Rights to be reported by FINRA or such other system then in use; and 
 (iii)
deliver to holders of the Rights historical financial statements for the Principal Party and each of its Affiliates which comply in all respects with the requirements for registration on Form 10 (or any successor form) under the Exchange Act; and

 (iv) obtain waivers of any rights of first refusal or preemptive rights in respect of the
shares of the Common Stock of the Principal Party subject to purchase upon exercise of outstanding Rights. 
 The provisions of
this Section 14 shall similarly apply to successive mergers or consolidations or sales or other transfers. If any event described in this Section 14 shall occur at any time after the occurrence of a Stock Acquisition Date,
the Rights which have not theretofore been exercised shall thereafter become exercisable in the manner described in Section 14(a) hereof. 

(d) If the Principal Party which is to be a party to a transaction referred to in this Section 14 has a provision in any of
its authorized securities or in its Certificate of Incorporation or Bylaws or other instrument governing its corporate affairs, which provision would have the effect of (i) causing such Principal Party to issue, in connection with or as a
consequence of, the consummation of the transaction referred to in this Section 14, shares of Common Stock of such Principal Party at less than the Current Market Price per share or securities exercisable for, or convertible into, Common
Stock of such Principal Party at less than such then Current Market Price (other than to holders of Rights pursuant to this Section 14) or (ii) providing for any special payment, tax or similar provisions in connection with the
issuance of the Common Stock of such Principal Party pursuant to the provisions of Section 14, 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. 

Section 15. Fractional Rights and Fractional Shares. 

(a) The Company shall not be required to issue fractions of Rights or to distribute Right Certificates which evidence fractional Rights.
In lieu of such fractional Rights existing or arising subsequent to the Distribution Date, there shall be paid to the registered holders of the Right Certificates with regard to which such fractional Rights would otherwise be issuable, an amount in
cash equal to the same fraction of the Current Market Value of a whole Right. For the purposes of this Section 15(a), the Current Market Value of a whole Right shall be the closing price of the Rights for the Trading Day immediately
prior to the date on which such fractional Rights would have been otherwise issuable. The closing price of the Rights for any day shall be the last sale price, regular way, or, in case no such sale takes place on such day, the average of the closing
bid and asked prices, regular way, in either case as reported in the principal consolidated transaction reporting system with respect to securities listed or admitted to trading on the New York Stock Exchange or, if the Rights are not listed or
admitted to trading on the New York Stock Exchange, as reported in the principal consolidated transaction reporting system with respect to securities listed on the principal national securities exchange on which the Rights are listed or admitted to
trading or, if the Rights are not listed or admitted to trading on any national securities exchange, the last quoted price, or, if not so quoted, the average of the bid and asked prices in the over-the-counter market, as reported by FINRA or such
other system then in use or, if on any such date the Rights are not quoted by any such organization, the average of 

 
the closing bid and asked prices as furnished by a professional market maker making a market in the Rights selected by the Board of Directors of the Company. If on any such date Rights are not
quoted by any such organization and no professional market maker is making such a market in the Rights, the fair value of the Rights on such date as determined in good faith by the Board of Directors shall be used. 

(b) The Company shall not be required to issue fractional interests in the shares of Preferred Stock (other than fractional interests
which are integral multiples of one one-thousandth (1/1000th) of a share of Preferred Stock) upon exercise of the Rights or to distribute certificates which evidence fractional interests in shares of Preferred Stock (other than fractions which
are integral multiples of one one-thousandth (1/1000th) of a share of Preferred Stock). Fractional interests in shares of Preferred Stock in integral multiples of one one-thousandth (1/1000th) of a share of Preferred Stock may, at the
election of the Company, be evidenced by depositary receipts, pursuant to an appropriate agreement between the Company and a depositary selected by it; provided, that such agreement shall provide that the holders of such depositary receipts
shall have all the rights, privileges and preferences to which they are entitled as beneficial owners of the Preferred Stock represented by such depositary receipts. In lieu of fractional interests in shares of Preferred Stock, the Company shall pay
to the registered holders of Right Certificates at the time such Right Certificates are exercised as herein provided an amount in cash equal to the same fraction of the Current Market Value of one share of Preferred Stock or other securities of the
Company on the date of exercise. 
 (c) The Company shall not be required to issue fractions of shares of Common Stock upon
exercise of the Rights or to distribute certificates which evidence fractional shares of Common Stock. In lieu of fractional shares of Common Stock the Company may 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 one share of Common Stock on the date of exercise. 

(d) The holder of a Right by the acceptance of the Rights expressly waives his right to receive any fractional Rights subsequent to the
Distribution Date, or any fractional share of Preferred Stock upon exercise of Rights (except as provided above). 

Section 16. Exchange. 

(a) The Board of Directors of the Company may, at its option, at any time after a Stock Acquisition Date (and, if the Distribution Date
has not then occurred, after the Distribution Date), exchange all or part of the then outstanding and exercisable Rights (which shall not include Rights that shall have become null and void and nontransferable pursuant to the provisions of
Section 7(f) hereof) for consideration per Right consisting of one-half of the securities that would be issuable at such time upon the exercise of one Right in accordance with Section 11(a) (the consideration issuable per
Right pursuant to this Section 16 being the “Exchange Consideration”). The Board of Directors of the Company may, at its option, issue, in substitution for Preferred Stock, shares of Common Stock in an amount per
whole share of Preferred Stock equal to the Formula Number if there are sufficient shares of Common Stock issued but not outstanding or authorized but unissued. If the Board of Directors elects to exchange all the Rights for Exchange Consideration
pursuant to this Section 16 prior to the 

 
physical distribution of the Rights Certificates, the Company may distribute the Exchange Consideration in lieu of distributing Right Certificates, in which case for purposes of this Rights
Agreement holders of Rights shall be deemed to have simultaneously received and surrendered for exchange Rights Certificates on the date of such distribution. Notwithstanding the foregoing, the Board of Directors shall not be empowered to effect
such exchange at any time after any Person (other than an Exempt Person or a Permitted Holder) which, together with all Affiliates and Associates of such Person, becomes the beneficial owner of 50% or more of the Common Stock outstanding.

 (b) Any action of the Board of Directors of the Company ordering the exchange of any Rights pursuant to
Section 16(a) shall be irrevocable and, immediately upon the taking of such action and without any further action and without any notice, the right to exercise any such Right shall terminate and the only right thereafter of a holder of
such Right shall be to receive the Exchange Consideration in exchange for each such Right held by such holder. The Company shall promptly give public notice of any such exchange; provided, however, that the failure to give, or any
defect in, such notice shall not affect the validity of such exchange. The Company promptly shall mail a notice of any such exchange to all 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 Rights for the Exchange Consideration 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 shall have become null and void and
nontransferable pursuant to the provisions of Section 7(f)) held by each holder of Rights. 

Section 17. Rights of Action. All rights of action in respect of this Rights Agreement, to the extent any such
rights exist, are vested in the respective registered holders of the Right Certificates (and, prior to the Distribution Date, the registered holders of Common Stock); and any registered holder of any Right Certificate (or, prior to the Distribution
Date, of the Common Stock), without the consent of the Rights Agent or of the holder of any other Right Certificate (or, prior to the Distribution Date, of the Common Stock), may, in his own behalf and for his own benefit, enforce, and may institute
and maintain any suit, action or proceeding against the Company to enforce, or otherwise act in respect of, his right to exercise the Rights evidenced by such Right Certificate in the manner provided in such Right Certificate and in this Rights
Agreement. Without limiting the foregoing or any remedies available to the holders of Rights, it is specifically acknowledged that the holders of Rights would not have an adequate remedy at law for any breach of this Rights Agreement and will be
entitled to specific performance of the obligations under, and injunctive relief against actual or threatened violations of the obligations of any Person subject to, this Rights Agreement. 

Section 18. Agreement of Right Holders. Every holder of a Right by accepting the same consents and agrees with
the Company and the Rights Agent and with every other holder of a Right that: 
 (a) prior to the Distribution Date, the Rights
will be transferable only in connection with the transfer of Common Stock; 

 (b) after the Distribution Date, the Right Certificates are transferable only on the
registry books of the Rights Agent if surrendered at the 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 certificates fully
executed; 
 (c) subject to Sections 6 and 7(g) hereof, the Company and the Rights Agent may deem and treat the
Person in whose name the Right Certificate (or, prior to the Distribution Date, the associated Common Stock certificate) is registered as the absolute owner thereof and of the Rights evidenced thereby (notwithstanding any notations of ownership or
writing on the Right Certificates or the associated Common Stock certificate made by anyone other than the Company or the Rights Agent) for all purposes whatsoever, and neither the Company nor the Rights Agent, shall be affected by any notice to the
contrary; and 
 (d) notwithstanding anything in this Rights Agreement to the contrary, neither the Company nor the Rights Agent
shall have any liability to any holder of a Right or other Person as a result of its inability to perform any of its obligations under this Agreement by reason of any preliminary or permanent injunction or other order, decree or ruling issued by a
court of competent jurisdiction or by a governmental, regulatory or administrative agency or commission, or any statute, rule, regulation or executive order promulgated or enacted by any governmental authority prohibiting or otherwise restraining
performance of such obligation; provided, however, the Company must use its best efforts to have any such order, decree or ruling lifted or otherwise overturned as soon as possible. 

Section 19. Right Certificate Holder Not Deemed a Stockholder. No holder, as such, of any Right Certificate
shall be entitled to vote, receive dividends or be deemed for any purpose the holder of the number of shares of Preferred Stock or any interest therein or any other securities of the Company which may at any time be issuable on the exercise of the
Rights represented thereby, nor shall anything contained herein or in any Right Certificate be construed to confer upon the holder of any Right Certificate, as such, any of the rights of a 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
Section 26 hereof), or to receive dividends or subscription rights, or otherwise, until the Right or Rights evidenced by such Right Certificate shall have been exercised in accordance with the provisions hereof. 

Section 20. Concerning the Rights Agent. 

(a) In the event that the Rights Agent is not the Company, 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 disbursements and other disbursements incurred in the administration and execution of this Agreement and the
exercise and performance of its duties hereunder. 
 (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 its capacity as Rights Agent in reliance upon any Right Certificate or certificate for

 
Common Stock or Preferred Stock or for other securities of the Company, instrument of assignment or transfer, power of attorney, endorsement, affidavit, letter, notice, direction, consent,
certificate, statement, or other paper or document believed by it to be genuine and to be signed, executed and, where necessary, verified or acknowledged, by the proper Person or Persons. 

Section 21. Merger or Consolidation or Change of Name of Rights Agent. 

(a) Any trust, corporation or other entity into which the Rights Agent or any successor Rights Agent may be merged or with which it may be
consolidated, or any trust, corporation or other entity resulting from any merger or consolidation to which the Rights Agent or any successor Rights Agent shall be a party or any trust, corporation or other entity succeeding to the corporate trust
business of the Rights Agent, shall be the successor to the Rights Agent under this Rights Agreement without the execution or filing of any paper or any further action on the part of any of the parties hereto, provided that such trust, corporation
or other entity would be eligible for appointment as a successor Rights Agent under the provisions of Section 23 hereof. In case at the time such successor Rights Agent shall succeed to the agency created by this Agreement, any of the
Right Certificates shall have been countersigned but not delivered, any such successor Rights Agent may adopt the countersignature of the predecessor Rights Agent and deliver such Right Certificates so countersigned; and in case at that time any of
the Right Certificates shall not have been countersigned, any successor Rights Agent may countersign such Right Certificates either in the name of the predecessor Rights Agent or in the name of the successor Rights Agent; and in all such cases such
Right Certificates shall have the full force provided in the Right Certificates and in this Rights Agreement. 
 (b) In case at
any time the name of the Rights Agent shall be changed and at such time any of the Right Certificates shall have been countersigned but not delivered, the Rights Agent may adopt the countersignature under its prior name and deliver Right
Certificates so countersigned; and in case at that time any of the Right Certificates shall not have been countersigned, the Rights Agent may countersign such Right Certificates either in its prior name or in its changed name; and in all such cases
such Right Certificates shall have the full force provided in the Right Certificates and in this Rights Agreement. 

Section 22. Duties of Rights Agent. The Rights Agent undertakes the duties and obligations expressly set forth
in this Rights Agreement and no implied duties or obligations shall be read into this Rights Agreement against the Rights Agent. The Rights Agent undertakes the duties and obligations imposed by this Rights Agreement upon the following terms and
conditions, by all of which the Company and the holders of Right Certificates, by their acceptance thereof, shall be bound; 

(a) The Rights Agent may consult with legal counsel (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 Rights Agreement the Rights Agent
shall deem it necessary or desirable that any fact or matter (including, without limitation, the identity of any Acquiring Person or any Affiliate or Associate thereof and the determination of Current 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 the
Chairman of the Board, the President, the Chief Operating Officer or any Vice President and by the Chief Financial Officer, Treasurer or the Secretary of the Company and delivered to the Rights Agent; and such certificate shall be full authorization
to the Rights Agent for any action taken or suffered in good faith by it under the provisions of this Rights Agreement in reliance upon such certificate. 

(c) The Rights Agent shall be liable hereunder 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 Rights Agreement
or in the Right Certificates (except its countersignature thereof) or be required to verify the same, but all such statements and recitals are and shall be deemed to have been made by the Company only. 

(e) The Rights Agent shall not be under any responsibility in respect of the validity of this Rights Agreement or the execution and
delivery hereof (except the due execution hereof by the Rights Agent) or in respect of the validity or execution of any Right Certificate (except its countersignature thereof); nor shall it be responsible for any breach by the Company of any
covenant or condition contained in this Rights Agreement or in any Right Certificate; nor shall it be responsible for any change in the exercisability of the Rights (including certain of the Rights becoming void pursuant to Section 7(f)
hereof) or any adjustment in the terms of the Rights (including the manner, method or amount thereof) provided for in Sections 3, 11, 12, 14, 16 or 25 hereof, or the ascertaining of the existence of facts
that would require any such adjustment (except with respect to the exercise of Rights evidenced by Right Certificates after actual notice of any such adjustment); nor shall it by any act hereunder be deemed to make any representation or warranty as
to the authorization or reservation of any shares of Preferred Stock, Common Stock and/or other securities, as the case may be, to be issued pursuant to this Rights Agreement or any Right Certificate or as to whether any shares of Preferred Stock,
Common Stock and/or other securities, as the case may be, will, when issued, be validly authorized and issued, fully paid and nonassessable. 

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

(g) The Rights Agent is hereby authorized and directed to accept instructions with respect to the performance of its duties hereunder
from the Chairman of the Board, the Chief Executive Officer, the President, the Chief Operating Officer, the Chief Financial Officer or any Vice President or the Treasurer or the 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 to be taken by it in good faith in accordance with instructions of any such officer. 

 (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 the Rights Agent under this Rights Agreement. Nothing herein shall preclude the Rights Agent from acting in any other capacity for the Company or for any other 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 Rights Agreement shall require the Rights Agent to expend or risk its own funds or otherwise incur any financial liability in the performance of any of its duties hereunder or in the exercise of its rights if there shall be
reasonable grounds for believing that repayment of such funds or adequate indemnification against such risk or liability is not reasonably assured to it. 

(k) If, with respect to any Right Certificate surrendered to the Rights Agent for exercise or transfer, the certificate attached to the
form of assignment or form of election to purchase, as the case may be, has 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 of transfer without first consulting with the Company. 
 (l) The Company agrees to indemnify and to hold the
Rights Agent harmless against any loss, liability, damage or expense (including reasonable fees and expenses of counsel) which the Rights Agent may incur resulting from its actions as Rights Agent pursuant to this Rights Agreement; provided,
however, that the Rights Agent shall not be indemnified or held harmless with respect to any such loss, liability, damage or expense incurred by the Rights Agent as a result of, or arising out of, its own gross negligence, bad faith or
willful misconduct. In no case shall the Company be liable with respect to any action, proceeding, suit or claim against the Rights Agent unless the Rights Agent shall have notified the Company, by letter or by facsimile confirmed by letter, of the
assertion of an action, proceeding, suit or claim against the Rights Agent, promptly after the Rights Agent shall have notice of any such assertion of an action, proceeding, suit or claim or have been served with the summons or other first legal
process giving information as to the nature and basis of the action, proceeding, suit or claim. The Company shall be entitled to participate at its own expense in the defense of any such action, proceeding, suit or claim, and, if the Company so
elects, the Company shall assume the defense of any such action, proceeding, suit or claim. In the event that the Company assumes such defense, the Company shall not thereafter be liable for the fees and expenses of any additional counsel retained
by the Rights Agent, so long as the Company shall retain counsel satisfactory to the Rights Agent, in the exercise of its reasonable judgment, to defend such action, proceeding, suit or claim. The Rights Agent agrees not to settle any litigation in
connection with any action, proceeding, suit or claim with respect to which it may seek indemnification from the Company without the prior written consent of the Company. 

 Section 23. Change of Rights Agent. The Rights Agent or any
successor Rights Agent may resign and be discharged from its duties under this Rights Agreement upon 30 days’ notice in writing mailed to the Company and to each transfer agent of the shares of Common Stock and Preferred Stock, if any, by
registered or certified mail, and, subsequent to the Distribution Date, to the holders of the Right Certificates by first-class mail. The Company may remove the Rights Agent or any successor Rights Agent upon 30 days’ notice in writing, mailed
to the Rights Agent or successor Rights Agent, as the case may be, and to each transfer agent of the Common Stock and Preferred Stock, if any, by registered or certified mail, and subsequent to the Distribution Date, to the holders of the Right
Certificates by first-class mail. If the Rights Agent shall resign or be removed or shall otherwise become incapable of acting, the Company shall appoint a successor to the Rights Agent. If the Company shall fail to make such appointment within a
period of 30 days after such removal or after it has been notified in writing of such resignation or incapacity by the resigning or incapacitated Rights Agent or by the holder of a Right Certificate (who shall, with such notice, submit his Right
Certificate for inspection by the Company), then the registered holder of any Right Certificate may apply to any court of competent jurisdiction for the appointment of a new Rights Agent. Any successor Rights Agent, whether appointed by the Company
or by such a court, shall be a corporation organized and doing business under the laws of the United States or of any state at the United States, in good standing, having a principal office in the United States of America, which is authorized under
such laws to exercise stock transfer or corporate trust powers and is subject to supervision or examination by federal or state authority. 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 such appointment, the Company shall file notice thereof in writing with the predecessor Rights Agent and each transfer agent of
the Common Stock and the Preferred Stock and, subsequent to the Distribution Date, mail a notice thereof in writing to the registered holders of the Right Certificates. Failure to give any notice provided for in this Section 23, 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 24. Issuance of New Right Certificates. Notwithstanding any of the provisions of this Rights Agreement
or of the Rights to the contrary, the Company may, at its option, issue new Right Certificates evidencing Rights in such form as may be approved by its Board of Directors to reflect any adjustment or change in the Purchase Price and the number or
kind or class of shares of Preferred Stock, Common Stock and/or other securities, as the case may be, purchasable under the Right Certificates made in accordance with the provisions of this Rights Agreement. In addition, if deemed necessary or
appropriate by the Board of Directors of the Company, the Company may issue Right Certificates representing the appropriate number of Rights in connection with the issuance or sale of Common Stock following the Distribution Date but prior to the
Expiration Date; provided, however, that (a) no such Right Certificate shall be issued if, and to the extent that, the Company shall be advised by counsel that such issuance would create a significant risk of material adverse tax
consequences to the Company or the person to whom such Right Certificate would be issued, and (b) no such Right Certificate shall be issued if, and to the extent that, appropriate adjustment shall otherwise have been made in lieu of the
issuance thereof. 

 Section 25. Redemption. 

(a) The Company may, by resolution of the Board of Directors, at its option, at any time prior to the earlier to occur of (i) the
Close of Business on the tenth day following the Stock Acquisition Date, and (ii) the Close of Business on the Final Expiration Date, elect to redeem all but not less than all of the then outstanding Rights at a redemption price of $.001 per
Right (the date of such redemption being the “Redemption Date”), appropriately adjusted to reflect any stock split, stock dividend or similar transaction occurring after the date hereof (such redemption price being
hereinafter referred to as the “Redemption Price”). The Company may, at its option, pay the Redemption Price in cash, shares of Common Stock or Preferred Stock (based on the Current Market Price of the Common Stock or
Preferred Stock, as applicable at the time of redemption) or any other form of consideration deemed appropriate by the Board of Directors. 

(b) If, following the occurrence of a Stock Acquisition Date and prior to the Distribution Date, (i) a Person who is an Acquiring
Person shall have transferred or otherwise disposed of a number of shares of Common Stock of the Company in one transaction, or a series of transactions (not directly or indirectly involving the Company or any of its Subsidiaries), which did not
result in an event described in Section 14 hereof, such that such Person is thereafter a Beneficial Owner of less than 20% (or (a) in the case of a Permitted Holder, the percentage the Permitted Holder may hold without ceasing to be
a Permitted Holder, and (b) in the case of an Adverse Person, the percentage such Person may hold as determined by the Board of Directors, which in no event may the Board of Directors require to be less than 10% of the shares of Common Stock
then outstanding, so that the Board of Directors no longer declares such Person to be an Adverse Person) of the outstanding Common Stock of the Company, (ii) there are no other Persons, immediately following the occurrence of the event
described in clause (i), who are Acquiring Persons, and (iii) the Board of Directors of the Company shall so approve, then the Company’s right of redemption provided in subparagraph (a) of this Section 25 shall be
reinstated and thereafter all outstanding Rights shall again be subject to the provisions of this Section 25. Notwithstanding anything to the contrary contained in this Rights Agreement, the Rights shall not be exercisable after the
first occurrence of a Stock Acquisition Date until such time as the Company’s right of redemption hereunder has expired. 

(c) Immediately upon the action of the Board of Directors of the Company electing to redeem the Rights (or, if such redemption is subject
to conditions, immediately upon satisfaction of such conditions), 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 for each Right so held. Promptly (but, in any event, within ten 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 Stock. Any notice which is mailed in the manner herein provided shall be deemed 

 
given, whether or not the holder receives the notice. Each such notice of redemption 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 as specifically set forth in this Section 25, and other than in connection with the purchase, acquisition or
redemption of Common Stock prior to the Distribution Date. 
 Section 26. Notice of Certain Events.

 (a) In case the Company shall propose, at any time after the Distribution Date, (i) to pay any dividend payable in
securities of the Company of any class to the holders of its shares of Preferred Stock or to make any other distribution to the holders of shares of Preferred Stock (other than a regular periodic cash dividend), or (ii) to offer to the holders
of its shares of Preferred Stock rights, options or warrants to subscribe for or to purchase any additional shares of Preferred Stock or securities convertible into shares of Preferred Stock, or (iii) to effect any reclassification of its
shares of Preferred Stock (other than a reclassification involving only the subdivision of outstanding shares of Preferred Stock), or (iv) to effect any consolidation or merger into or with any other Person, or to effect any sale or other
transfer (or to permit one or more of its Subsidiaries to effect any sale or other transfer), in one transaction or a series of related transactions, of more than 50% of the assets or earning power of the Company and its Subsidiaries (taken as a
whole) to any other Person or Persons, or (v) to effect the liquidation, dissolution or winding up of the Company, then, in each such case, (i) the Company shall give to each holder of a Right, to the extent feasible and in accordance with
Section 26, a notice of such proposed action, which notice shall specify the proposed event and the consequences of the event to the holders of Rights under Section 11(a), Section 12 or Section 14
hereof, as the case may be, and, upon consummating such transaction, shall similarly give notice thereof to each holder of Rights and (ii) all references in the preceding paragraph (a) to Preferred Stock shall be deemed thereafter referred
to Common Stock or other securities, as appropriate warrants, or the date on which such reclassification, consolidation, merger, sale, transfer, liquidation, dissolution, or winding up is to take place and the date of participation therein by the
holders of Common Stock, if any such date is to be fixed, and such notice shall be so given in the case of any action covered by clause (i), (ii) or (v) above at least 20 days prior to the record date for determining holders of Common
Stock for purposes of such action, and in the case of any such other action, at least 20 days prior to the date of the taking of such proposed action or the date of participation therein by the holders of Common Stock, whichever shall be the
earlier. The failure to give notice required by this Section 26 or any defect therein shall not affect the legality or validity of the action taken by the Company or the vote upon any such action. 

(b) Notwithstanding anything in this Rights Agreement to the contrary, prior to the Distribution Date a filing by the Company with the
Securities and Exchange Commission shall constitute sufficient notice to the holders of securities of the Company, including the Rights, for purposes of this Rights Agreement and no other notice need be given. 

 Section 27. Notices. Notices or demands authorized by this Rights
Agreement to be given or made by the Rights Agents or by the holder of any Right Certificate (or, prior to the Distribution Date, of the Common Stock) to or on the Company shall be sufficiently given or made if sent by first-class mail, postage
prepaid, addressed (until another address if filed in writing with the Rights Agent) as follows: 
 IRIS International, Inc.

 9158 Eton Avenue 

Chatsworth, CA 91311 

Attention: Chief Executive Officer 

Subject to the provisions of Section 23 hereof, any notice or demand authorized by this Rights Agreement to be given or made by the Company
or by the holder of any Right Certificate to or on the Rights Agent shall be sufficiently given or made if sent by first-class mail, postage prepaid, addressed (until another address is filed in writing with the Company) as follows: 

Continental Stock Transfer & Trust Company 

17 Battery Place 

New York, NY 10004 

Attention: Compliance Department 

Notices or demands authorized by this Rights Agreement to be given or made by the Company or the Rights Agent to the holder of any Right Certificate (or,
prior to the Distribution Date, to the holder of any certificate representing Common Stock) 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 28. Supplements and Amendments. Prior to the Distribution
Date, the Company may and the Rights Agent shall, if the Company so directs, supplement or amend any provision of this Rights Agreement (including, without limitation, the date on which the Distribution Date shall occur, the definition of Acquiring
Person or Adverse Person, the time during which the Rights may be redeemed or any provision of the Certificate of Designation) without the approval of any holders of certificates representing shares of Common Stock. From and after the Distribution
Date and subject to the penultimate sentence of this Section 28, the Company and the Rights Agent shall, if the Company so directs, supplement or amend this Rights Agreement without the approval of any holders of Rights Certificates in
order (a) to cure any ambiguity, (b) to correct or supplement any provision contained herein which may be defective or inconsistent with any other provisions herein, (c) to shorten or lengthen any time period hereunder or (d) to
change or supplement the provisions hereof in any manner which the Company may deem necessary or desirable and which shall not adversely affect the interests of the holders of Rights Certificate (other than an Acquiring Person or an Affiliate or
Associate of an Acquiring Person); provided, however, that this Rights Agreement may not be supplemented or amended to lengthen, pursuant to clause (c) of this sentence, (i) a time period relating to when the Rights may be
redeemed at such time as the Rights are not then redeemable or (ii) any other time period unless such lengthening is for the purposes of protecting, enhancing or clarifying the rights of, and/or the benefits to, the holders of Rights. Upon the
delivery of a certificate from an appropriate officer of the Company which states that the proposed supplement or amendment is in compliance with the terms of this Section 28, 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 Stock. 

 Section 29. Successors. All the covenants and provisions of this
Rights Agreement by or for the benefit of the Company or the Rights Agent shall bind and inure to the benefit of their respective successors and assigns hereunder. 

Section 30. Determinations and Actions by the Board of Directors, etc. For all purposes of this Rights
Agreement, any calculation of the number of shares of Common Stock outstanding at any particular time, including for purposes of determining the particular percentage of such outstanding shares of Common Stock 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. Except as explicitly otherwise provided herein, the Board of Directors of the Company shall have the
exclusive power and authority to administer this Rights Agreement and to exercise all rights and powers specifically granted to the Board of Directors or to the Company, or as may be necessary or advisable in the administration of this Rights
Agreement, including without limitation, the right and power to (a) interpret the provisions of this Rights Agreement and (b) make all determinations deemed necessary or advisable for the administration of this Rights Agreement (including
a determination to redeem or not redeem the Rights or to amend the Rights Agreement and a determination of whether there is an Acquiring Person). All such actions, calculations, interpretations and determinations (including, for purposes of clause
(ii) below, all omissions with respect to the foregoing) which are done or made by the Board of Directors in good faith, shall (i) be final, conclusive and binding on the Company, the Rights Agent, the holders of the Rights and all other
parties, and (ii) not subject the Board of Directors to any liability to the holders of the Rights. 

Section 31. Benefits of This Rights Agreement. Nothing in this Rights Agreement shall be construed to give to
any Person other than the Company, the Rights Agent and the registered holders of the Right Certificates (and, prior to the Distribution Date, the Common Stock) any legal or equitable right, remedy or claim under this Rights Agreement; but this
Rights Agreement shall be for the sole and exclusive benefit of the Company, the Rights Agent and the registered holders of the Right Certificates (and, prior to the Distribution Date, the Common Stock). 

Section 32. Severability. If any term, provision, covenant or restriction of this Rights Agreement is held by a
court of competent jurisdiction or other authority to be invalid, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions of this Rights Agreement shall remain in full force and effect and shall in no way be
affected, impaired or invalidated. 
 Section 33. Governing Law. This Rights Agreement, each right and
each right certificate issued hereunder shall be deemed to be a contract made under the laws of the State of Delaware and for all purposes shall be governed by and construed in accordance with the laws of such state applicable to contracts to be
made and performed entirely within such state. 
 Section 34. Counterparts; Effectiveness. This Rights
Agreement may be executed in any number of counterparts and each of such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall together constitute one and the same instrument. This Rights Agreement shall be
effective as of the Close of Business on the date hereof. 

 Section 35. Descriptive Headings. The captions herein are included
for convenience of reference only, do not constitute a part of this Rights Agreement and shall be ignored in the construction and interpretation hereof. 

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

							
		 		  	 IRIS INTERNATIONAL, INC.,

a Delaware corporation

				
		 		  	By:	  	 /s/ Cesar M. Garcia

		 		  		  	Cesar M. Garcia
		 		  	Title:	  	President and Chief Executive Officer
			
	Attest:	 		  	 Continental Stock Transfer & Trust Company,

as Rights Agent

				
		 		  	By:	  	 /s/ Alexandra Albrecht

		 		  		  	Alexandra Albrecht
		 		  	Title:	  	Vice President

 Exhibit A 

Certificate Of Designation of 

Rights, Preferences, and Privileges 

of Series A Preferred Stock 

of 
 IRIS
International, Inc. 
 (Pursuant to § 151 of the 

Delaware General Corporation Law) 

I, Todd Graham, Secretary of IRIS International, Inc. (the “Corporation”), a corporation organized and existing
under the General Corporation Law of the State of Delaware, in accordance with the provisions of Section 103 thereof, DO HEREBY CERTIFY: 

That pursuant to the authority conferred upon the Board of Directors of the Corporation by the Certificate of Incorporation of the
Corporation, the said Board of Directors on September 24, 2010, adopted the following resolutions creating a series of the Corporation’s Preferred Stock designated as Series A Preferred Stock: 

RESOLVED, that pursuant to the authority granted to and vested in the Board of Directors of the Corporation in accordance with the
provisions of the Certificate of Incorporation of the Corporation, the Board of Directors hereby creates a series of Series A Preferred Stock, with a par value of $0.01 per share, of the Corporation and hereby states the designation and number of
shares, and fixes the relative rights, preferences and limitations thereof as follows (the following provisions being intended to operate in addition to any other provisions of said Certificate of Incorporation applicable to any series of Preferred
Stock): 
 Series A Preferred Stock 

Section 1. Designation and Amount. The shares of such series shall be designated as “Series A Preferred Stock” (the
“Series A Preferred Stock”) and the number of shares constituting the Series A Preferred Stock shall be 250,000 shares of Series A Preferred Stock, par value $0.01 per share. Such number of shares may be increased or
decreased by resolution of the Board of Directors; provided, that no decrease shall reduce the number of shares of Series A Preferred Stock to a number less than the number of shares then outstanding plus the number of shares reserved for
issuance upon the exercise of outstanding options, rights or warrants or upon the conversion of any outstanding securities issued by the Corporation convertible into Series A Preferred Stock. 

Section 2. Dividends and Distributions 

(a) Subject to the rights of the holders of any shares of any series of Preferred Stock (or any similar stock) ranking prior and superior
to the Series A Preferred Stock with respect to dividends, the holders of shares of Series A Preferred Stock, in preference to the holders of Common Stock, par value $0.01 per share (the “Common Stock”), of the Corporation,
and of any other junior stock, shall be entitled to receive, when, as and if declared by the Board of Directors out of funds legally available for the purpose, (i) cash dividends in an amount per

 
whole share (rounded to the nearest cent) equal to the Formula Number (as defined below) then in effect, times the aggregate per share amount of all cash dividends declared or paid on the Common
Stock, and (ii) a preferential cash dividend (a “Preferential Dividend”), if any, on the first day of April, July, October and January 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 A Preferred Stock, in an amount per share (rounded to the nearest cent) equal to $1.00
per share of Series A Preferred Stock less the per share amount of all cash dividends declared on the Series A Preferred Stock pursuant to clause (i) of this sentence 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 A Preferred Stock. In addition, if the Corporation shall pay any dividend or make any distribution on the Common Stock
payable in assets, securities or other forms of noncash consideration (other than dividends or distributions solely in shares of Common Stock), then, in each such case, the Corporation shall simultaneously pay or make on each whole outstanding share
of Series A Preferred Stock, a dividend or distribution in like kind equal to the Formula Number then in effect times such dividend or distribution on each share of the Common Stock. The dividends and distributions on the Series A Preferred Stock to
which holders thereof are entitled pursuant to clause (i) of the first sentence of this paragraph and the second sentence of this paragraph are hereinafter referred to as “Participating Dividends.” As used herein, the
“Formula Number” shall be 1,000; provided, however, that if at any time after September 24, 2010, the Corporation shall (i) declare or pay any dividend or make any distribution on the Common Stock, payable in shares
of Common Stock, (ii) subdivide (by a stock split or otherwise), the outstanding shares of Common Stock into a larger number of shares of Common Stock, or (iii) combine (by a reverse stock split or otherwise) the outstanding shares of
Common Stock into a smaller number of shares of Common Stock, then in each such case the Formula Number in effect immediately prior to such event shall be adjusted to a number determined by multiplying the Formula Number then in effect by a
fraction, the numerator of which is the number of shares of Common Stock outstanding immediately after such event and the denominator of which is the number of shares of Common Stock that were outstanding immediately prior to such event (and
rounding the result to the nearest whole number); and provided further, that, if at any time after September 24, 2010 the Corporation shall issue any shares of its capital stock in a merger, reclassification, or change of the outstanding shares
of Common Stock, then in each such event the Formula Number shall be appropriately adjusted to reflect such merger, reclassification, or change so that each share of Series A Preferred Stock continues to be the economic equivalent of a Formula
Number of shares of Common Stock prior to such merger, reclassification or change. 
 (b) The Corporation shall declare each
Participating Dividend immediately prior to or at the same time it declares any cash or non-cash dividend or distribution on the Common Stock in respect of which a Participating Dividend is required to be paid. No cash or non-cash dividend or
distribution on the Common Stock in respect of which a Participating Dividend is required shall be paid or set aside for payment on the Common Stock unless a Participating Dividend in respect of such dividend shall have been paid. 

(c) Dividends shall begin to accrue and be cumulative on outstanding shares of Series A Preferred Stock from the Quarterly Dividend
Payment Date preceding the date of issue of such shares, unless the date of issue of such shares is prior to the record date for the first 

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

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

 (a) Each holder of Series A Preferred Stock shall be entitled to a number of votes equal to the Formula Number then in
effect, for each share of Series A Preferred Stock held of record on each matter on which holders of the Common Stock or stockholders generally are entitled to vote, multiplied by the maximum number of votes per share which any holder of the Common
Stock or stockholders generally then have with respect to such matter (assuming any holding period or other requirement to vote a greater number of shares is satisfied). 

(b) Except as otherwise provided herein, in any other Certificate of Amendment creating a series of Preferred Stock or any similar stock,
or by law, the holders of shares of Series A Preferred Stock and the holders of shares of Common Stock and any other capital stock of the Corporation having general voting rights shall vote together as one class on all matters submitted to a vote of
stockholders of the Corporation. 
 (c) Except as set forth herein, or as otherwise provided by law, holders of Series A
Preferred Stock shall have no special voting rights and their consent shall not be required (except to the extent they are entitled to vote with holders of Common Stock as set forth herein) for taking any corporate action. 

Section 4. Certain Restrictions. 

(a) Whenever Preferential Dividends or Participating Dividends are in arrears or the Corporation shall be in default in payment thereof,
thereafter and until all accrued and unpaid Participating Dividends and Preferential Dividends, whether or not declared, on shares of Series A Preferred Stock outstanding shall have been paid or set aside for payment in full, the Corporation shall
not: 
 (i) declare or pay dividends, or 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 A Preferred Stock; 

 (ii) declare or pay dividends, or make any other distributions, on the shares of stock
ranking on a parity (either as to dividends or upon liquidation, dissolution or winding up) with the Series A Preferred Stock, except dividends paid ratably on the Series A Preferred Stock and all such parity stock on which dividends are payable or
in arrears in proportion to the total amounts to which the holders of all such shares are then entitled; 
 (iii) redeem or
purchase or otherwise acquire for consideration shares of any stock ranking junior or on a parity (either as to dividends or upon liquidation, dissolution or winding up) to or with the Series A Preferred Stock, provided that the Corporation may at
any time redeem, purchase or otherwise acquire shares of any such junior or 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 A
Preferred Stock; or 
 (iv) redeem or purchase or otherwise acquire for consideration shares of Series A Preferred Stock, or
any shares of stock ranking on a parity with the Series A Preferred Stock, except in accordance with a purchase offer made in writing or by publication (as determined by the Board of Directors) to all holders of such shares upon such terms as the
Board of Directors, after consideration of the respective annual dividend rates and other relative rights and preferences of the respective series and classes, shall determine in good faith will result in fair and equitable treatment among the
respective series or classes. 
 (b) The Corporation shall not permit any subsidiary of the Corporation to purchase or otherwise
acquire for consideration any shares of stock of the Corporation unless the Corporation could, under paragraph (a) of this Section 4, purchase or otherwise acquire such shares at such time and in such manner. 

Section 5. Reacquired Shares. Any shares of Series A 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 subject to the conditions and restrictions on issuance set forth herein, in the Certificate of Incorporation, or in any other Certificate of Amendment or Certificate of Designation creating a series of Preferred Stock or any similar
stock or as otherwise required by law. 
 Section 6. Liquidation, Dissolution or Winding Up. Upon any voluntary or
involuntary liquidation, dissolution or winding up of the Corporation, no distribution shall be made (a) to the holders of shares of stock ranking junior (either as to dividends or upon liquidation, dissolution or winding up) to the Series A
Preferred Stock unless, prior thereto, the holders of shares of Series A Preferred Stock shall have received an amount equal to the accrued and unpaid dividends and distributions thereon, whether or not declared, to the date of such payment, plus an
amount equal to the greater of (i) $0.01 per whole share, or (ii) an aggregate amount per share equal to the Formula Number then in effect times the aggregate amount to be distributed per share to holders of Common Stock, or (b) to
the holders of shares of stock ranking on a parity (either as to dividends or upon liquidation, dissolution or winding up) with the Series A Preferred Stock, unless simultaneously therewith distributions are made ratably on the Series A Preferred
Stock and all such parity stock in proportion to the total amounts to which the holders of Series A Preferred Stock shares are entitled under clause (a)(i) of this sentence and to which the holders of such parity shares are entitled in each case
upon such liquidation, dissolution or winding up. 

 Section 7. Consolidation, Merger, etc. If the Corporation shall enter into any
consolidation, merger, combination or other transaction in which the shares of Common Stock are exchanged for or changed into other stock or securities, cash and/or any other property, then in any such case each share of Series A Preferred Stock
shall at the same time be similarly exchanged or changed into an amount per share equal to the Formula Number then in effect times the aggregate amount of stock, securities, cash and/or any other property (payable in kind), as the case may be, into
which or for which each share of Common Stock is changed or exchanged. In the event that both this Section 7 and Section 2 appear to apply to a transaction, this Section 7 shall control. 

Section 8. Effective Time of Adjustments. 

(a) Adjustments to the Series A Preferred Stock required by the provisions hereof shall be effective as of the time at which the event
requiring such adjustments occurs. 
 (b) The Corporation shall give prompt written notice to each holder of a share of Series A
Preferred Stock of the effect on any such shares of any adjustment to the dividend rights or rights upon liquidation, dissolution or winding up of the Corporation required by the provisions hereof. Notwithstanding the foregoing sentence, the failure
of the Corporation to give such notice shall not affect the validity of or the force or effect of or the requirement for such adjustment. 

Section 9. No Redemption. The shares of Series A Preferred Stock shall not be redeemable. 

Section 10. Rank. Unless otherwise provided in the Articles of Incorporation or a Certificate of Designation relating to a
subsequent series of Preferred Stock of the Corporation, the Series A Preferred Stock shall rank, with respect to the payment of dividends and the distribution of assets, junior to all series of any other class of the Corporation’s Preferred
Stock. 
 Section 11. Fractional Shares. The Series A Preferred Stock shall be issuable upon exercise of the Rights
issued pursuant to the Rights Agreement in whole shares or in any fraction of a share that is one one-thousandth (1/1000th) of a share or any integral multiple of such fraction which shall entitle the holder, in proportion to such holder’s
fractional shares, to receive dividends, exercise voting rights, participate in distributions and to have the benefit of all other rights of holders of Series A Preferred Stock. In lieu of fractional shares, the Corporation, prior to the first
issuance of a share or a fraction of a share of Series A Preferred Stock, may elect (1) to make a cash payment as provided in the Rights Agreement for fractions of a share other than one one-thousandth (1/1000th) of a share or any integral
multiple thereof, or (2) to issue depository receipts evidencing such authorized fraction of a share of Series A Preferred Stock pursuant to an appropriate agreement between the Corporation and a depository selected by the Corporation; provided
that such agreement shall provide that the holders of such depository receipts shall have the rights, privileges and preferences to which they are entitled as holders of the Series A Preferred Stock. 

 Section 12. Amendment. The Certificate of Incorporation of the Corporation shall
not be amended in any manner which would materially alter or change the powers, preferences or special rights of the Series A Preferred Stock so as to affect them adversely without the affirmative vote of the holders of a majority of the outstanding
shares of Series A Preferred Stock, voting together as a single class. 
 RESOLVED, that the proper officers of the Corporation
be, and each of them hereby is, authorized to execute a Certificate of Designation with respect to the Series A Preferred Stock pursuant to Section 151 of the General Corporation Law of the State of Delaware and to take all appropriate action
to cause such Certificate to become effective, including, but not limited to, the filing and recording of such Certificate with and/or by the Secretary of State of the State of Delaware. 

 IN WITNESS WHEREOF, I have executed and subscribed to this Certificate
and do affirm the foregoing as true under penalty of perjury this
24th day of September, 2010. 

 

			
	By:	 	  

		 	Todd Graham
	Its: 	 	Secretary

 Exhibit B 

FORM OF RIGHTS CERTIFICATE 
  

			
	Certificate No. R-	  	                     Rights

NOT EXERCISABLE AFTER SEPTEMBER 24, 2020 OR EARLIER IF REDEEMED OR EXCHANGED BY THE COMPANY. THE RIGHTS ARE SUBJECT TO REDEMPTION, AT THE
OPTION OF THE COMPANY, AT $.001 PER RIGHT ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN CIRCUMSTANCES, RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING PERSON (AS SUCH TERM IS DEFINED IN THE RIGHTS AGREEMENT) AND ANY SUBSEQUENT HOLDER OF
SUCH RIGHTS MAY BECOME NULL AND VOID AND NON-TRANSFERABLE. 
 Right Certificate 

IRIS INTERNATIONAL, INC. 

This certifies that
                                    , or registered assigns,
is the registered owner of the number of Rights set forth above, each of which entitles the owner thereof, subject to the terms, provisions and conditions of the Rights Agreement dated as of September 24, 2010 (the “Rights Agreement”)
between IRIS International, Inc., a Delaware corporation (the “Company”), and Continental Stock Transfer & Trust Company, as Rights Agent (the “Rights Agent”), unless the rights evidenced hereby shall have been
previously redeemed by the Company, 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. Pacific time on September 24, 2020, at the principal office or
offices of the Rights Agent designated for such purpose, or at the office of its successor as Rights Agent or its successors as Rights Agent, one one-thousandth (1/1000th) of a fully paid and non-assessable share of Series A Preferred Stock,
par value $0.01 per share, of the Company (the “Preferred Stock”), at a cash purchase price of $100.00 per one one-thousandth (1/1000th) of a share of Preferred Stock, as the same may from time to time be adjusted in accordance with
the Rights Agreement (the “Purchase Price”), upon presentation and surrender of this Right Certificate with the form of election to purchase and the related certificate duly executed. The number of Rights evidenced by this Right
Certificate (and the number of fractional shares of Preferred Stock which may be purchased upon exercise thereof) set forth above, and the Purchase Price set forth above, are the number and Purchase Price as of
                         ,          based on the shares of Preferred
Stock as constituted at such date. 
 As provided in the Rights Agreement, the Purchase Price and the number of shares of
Preferred Stock which may be purchased upon the exercise of the Rights evidenced by this Right Certificate are subject to modification and adjustment upon the happening of certain events, and in certain circumstances may be exercised to purchase
securities other than shares of Preferred Stock or securities of issuers other than the Company. 

 If the Rights evidenced by this Rights Certificate are at any time beneficially owned by an
Acquiring Person or an Affiliate or Associate of an Acquiring Person (as such terms are defined in the Rights Agreement), such Rights shall be null and void and nontransferable and the holder of any such Right (including any purported transferee or
subsequent holder) shall not have any right to exercise or transfer any such Right. 
 This Right Certificate is subject to all
of the terms, provisions and conditions of the Rights Agreement, which terms, provisions and conditions are hereby incorporated herein by reference and made a part hereof and to which Rights Agreement reference is hereby made for a full description
of the rights, limitations of rights, obligations, duties and immunities thereunder of the Rights Agent, the Company and the holders of the Right 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 office of the Company and the Rights Agent and are also available free of charge upon written request mailed to the
Rights Agent at: 
 Continental Stock Transfer & Trust Company 

17 Battery Place 

New York, NY 10004 

Attention: Compliance Department 

This Right Certificate, with or without other Right Certificates, upon surrender at the office or offices of the Rights Agent designated
for such purpose, may be exchanged for another Right Certificate or Right Certificates of like tenor and date evidencing Rights entitling the holder to purchase a like aggregate number of shares of Preferred Stock as the Rights evidenced by the
Right Certificate or Right Certificates surrendered shall have entitled such holder to purchase. If this Right Certificate shall be exercised in part, the holder shall be entitled to receive upon surrender hereof another Right Certificate or Right
Certificates for the number of whole Rights not exercised. 
 Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Right Certificate may be redeemed by the Board of Directors at a redemption price of $.001 per Right (payable in cash or other consideration) appropriately adjusted as provided in the Rights Agreement at any time prior to the
earlier to occur of (i) 10 days after a Stock Acquisition Date (as defined in the Rights Agreement), and (ii) the Final Expiration Date. 

No fractional shares of Preferred Stock (other than integral multiples of one one-thousandths (1/1000ths) of a share, which may, at
the election of the Company, be evidenced by depositary receipts) 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 Right Certificate, as such, shall be entitled to vote or receive dividends or be deemed for any purpose the holder of
shares of Preferred Stock or of any other securities of the Company which may at any time be issuable on the exercise hereof, nor shall anything contained in the Rights Agreement or herein be construed to confer upon the holder hereof, as such, any
of the rights of a 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 give or 

 
withhold consent to any corporate action, or to receive notice of meetings or other actions affecting stockholders (except as provided in the Rights Agreement), or to receive dividends or
subscription rights, or otherwise, until the Right or Rights evidenced by this Right Certificate shall have been exercised as provided in the Rights Agreement. 

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

 WITNESS the facsimile signature of the proper officers of the Company. 

 

							
	Dated as of                         ,
        	  		  	IRIS INTERNATIONAL, INC.
				
	  
	  		  	By:	 	  

	Secretary	  		  		 	Title:

 Countersigned: 

Continental Stock Transfer & Trust Company, 

as Rights Agent 
  

			
	By: 	 	  

		 	Title:
		
	By:	 	  

		 	Title:

 [On Reverse Side of Rights Certificate] 

FORM OF ELECTION TO PURCHASE 

(To be executed if holder desires to exercise 

Rights represented by the Right Certificate) 
  

	To:	IRIS INTERNATIONAL, INC. 

 The
undersigned hereby irrevocably elects to exercise                                 
Rights represented by this Right Certificate to purchase one one-thousandth (1/1000th) of a share of Preferred Stock issuable upon the exercise of the Rights (or such other securities of the Company or of any other Person which may be issuable
upon the exercise of the Rights) and requests that certificates for such securities be issued in the name of and delivered to: 
 Please insert
social security 
 or other identifying number 

              

 
 (Please print name and address)

  
  

 
 If such number of Rights shall not
be all the Rights evidenced by this Right Certificate, a new Right Certificate for the balance 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)

  
  

 
 Optional Election to Exercise Without Payment
of Cash: 
 With respect to the exercise of
                                 of the Rights specified above, the undersigned
hereby elects to exercise such Rights without payment of cash and to receive a number of one one-thousandth (1/1000th) of a share of Preferred Stock or other securities having a value (as determined pursuant to the Rights Agreement) equal to
the difference between (i) the value of the Preferred Stock or other securities that would have been issuable upon exercise thereof upon payment of the Purchase Price as provided in the Rights Agreement, and (ii) the amount of such
Purchase Price. 
  

					
	Dated:
                                ,
        	  		  	  

		  		  	Signature

 Signature Medallion Guaranteed: 

 Certificate 

The undersigned hereby certifies by checking the appropriate boxes that: 

1. the Rights evidenced by this Right 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 Acquiring 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 Right Certificate from any Person who
is, was or became an Acquiring Person or an Affiliate or Associate of an Acquiring Person. 
  

					
	Dated:
                                ,
        	  		  	  

		  		  	Signature

 Signature Medallion Guaranteed: 

NOTICE 

The signature to the foregoing Election to Purchase and Certificate must correspond to the name as written upon the face of this Right
Certificate in every particular, without alteration or enlargement or any change whatsoever. 
 FORM OF ASSIGNMENT 

 (To be executed by the registered holder if such 

holder desires to transfer the Right Certificate) 

FOR VALUE RECEIVED
                                 hereby sells, assigns and transfers unto

               

 
 (Please print name and address of
transferee) 
  
  

 
 this Right Certificate, together with all right,
title and interest therein, and does hereby irrevocably constitute and appoint
                                 Attorney, to transfer the within Right
Certificate on the books of IRIS International, Inc., with full power of substitution. 
  

					
	Dated:
                                ,
        	  		  	  

		  		  	Signature

 Signature Medallion Guaranteed: 

 Certificate 

The undersigned hereby certifies by checking the appropriate boxes that: 

1. the Rights evidenced by this Right Certificate              are
             are 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 Acquiring 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 Right Certificate from any Person who
is, was or subsequently became an Acquiring Person or an Affiliate or Associate of an Acquiring Person. 
  

					
	Dated:
                                ,
        	  		  	  

		  		  	Signature

 Signature Medallion Guaranteed: 

NOTICE 

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

 Exhibit C 

SUMMARY OF RIGHTS TO PURCHASE PREFERRED STOCK 

Distribution of Rights: Effective September 24, 2010, the Board of Directors (the “Board”) of IRIS International,
Inc., a Delaware corporation (the “Company”) authorized and declared a dividend of one right (a “Right”) for each issued and outstanding share of the Common Stock, par value $0.01 per share (the “Common Stock”) of the
Company. The dividend is payable to the stockholders of record on October 8, 2010 (the “Record Date”). All Rights are issued pursuant to, and will be subject to the terms and conditions of, the Rights Agreement between the Company and
Continental Stock Transfer & Trust Company, as Rights Agent, dated as of September 24, 2010. The following is a brief summary of the terms of the Rights. 

Each Right, when exercisable, will entitle the registered holder thereof to purchase from the Company one one-thousandth
(1/1000th) of a share of the Series A Preferred Stock, par value $0.01 per share, of the Company (the “Preferred Stock”) at a Purchase Price of $100.00 per one one-thousandth (1/1000th) of a share of Preferred Stock (the
“Purchase Price”), subject to certain adjustments. 
 Exercise of Rights: The Rights will initially be
represented by the certificates evidencing the Common Stock and will not be exercisable, or transferable apart from the Common Stock, until the earliest to occur of (i) the close of business on the tenth day after the acquisition by a person or
group of affiliated or associated persons (other than an Exempt Person or, in certain cases, a Permitted Holder) of beneficial ownership of 20% or more of the outstanding Common Stock; provided, that if within said ten-day period the
Acquiring Person reduces his beneficial ownership to less than 20%, then he shall be deemed not to be an Acquiring Person and the Stock Acquisition Date (as defined below) shall be deemed not to have occurred; (ii) the close of business on the
tenth day after the commencement of a tender or exchange offer the consummation of which would result in the beneficial ownership by a person or group of affiliated or associated persons of 20% or more of the outstanding Common Stock;
provided, that if within said ten day period the person withdraws the tender or exchange offer, then such offer shall be deemed not to have been made; and (iii) the close of business on the tenth day after the date on which the Board
declares any person or group of affiliated or associated persons which beneficially owns 10% or more of the outstanding Common Stock to be an “Adverse Person” (as described below) (the earliest of these dates is referred to as the
“Distribution Date”). Under the Rights Agreement, any person or group described in items (i) or (iii) above is referred to as an “Acquiring Person,” and the date upon which a person or group first becomes an Acquiring
Person is referred to as the “Stock Acquisition Date.” 
 An “Adverse Person” is any person or group of
affiliated or associated persons (other than an Exempt Person and a Permitted Holder) beneficially owning 10% or more of the outstanding Common Stock, if the Board determines (i) that the person or group is holding the shares of Common Stock in
order to cause the Company to repurchase their Common Stock or to take any other actions intended to provide them with short-term financial gain, in circumstances where the Board determines that the actions to be taken are not in the best long-term
interests of the Company or its stockholders, or (ii) that beneficial ownership of the Common Stock by the person or group is causing or reasonably likely to cause a material adverse impact on the business or prospects of the Company.

 An “Exempt Person” is defined as the Company, a subsidiary of the Company, and an
employee benefit plan of the Company, or any of its subsidiaries. 
 A “Permitted Holder” shall mean a Person who
acquires beneficial ownership of the Common Stock of the Company pursuant to a Permitted Acquisition; provided, however, a Permitted Holder shall remain a Permitted Holder so long as the aggregate beneficial ownership of Common Stock
held by such Person does not exceed that number of shares of Common Stock held by such Person immediately following the Permitted Acquisition pursuant to which such Person became a Permitted Holder (reduced by the number of shares of Common Stock
from time to time disposed of by such Person) plus a number of additional shares of Common Stock equal to 1% of the then outstanding shares of Common Stock of the Company; provided, however, any shares of Common Stock issued or
issuable to a Permitted Holder pursuant to employee benefit plans maintained by the Company for the benefit of its employees, directors and consultants shall be disregarded and not counted for purposes of calculating the limitations imposed by the
immediately preceding sentence. 
 “Permitted Acquisition” shall mean an acquisition of shares of Common Stock by a
Person in a transaction or series of transactions which has been previously approved by a majority of the Board of Directors. 

The Rights (unless sooner redeemed) will first become exercisable on the Distribution Date, at which time the Company will distribute
separate Right Certificates representing the Rights to its then current stockholders, and it is expected that the Rights could then begin trading separately from the Common Stock. The Rights will expire on September 24, 2020 (the “Final
Expiration Date”), unless the Final Expiration Date is extended or unless the Rights are earlier redeemed or exchanged by the Company. 

Anti-Takeover Provisions: Following the Distribution Date, the Rights would give holders (other than the Acquiring Person, its
affiliates and transferees) the right to purchase from the Company, for the Purchase Price, that number of one one-thousandth (1/1000th) of a share of Preferred Stock (or, in certain circumstances, Common Stock, cash, property or other
securities of the Company) having a market value of twice the Purchase Price of the Right. Notwithstanding any of the foregoing, following the Stock Acquisition Date, all Rights that are, or (under certain circumstances specified in the Rights
Agreement) were, beneficially owned by any Acquiring Person will be null and void. 
 Further, in a merger, consolidation or
sale or transfer of 50% or more of the consolidated assets or earning power of the Company, each Right will be converted into the right to purchase, for the Purchase Price, that number of shares of common stock of the surviving entity or (in certain
circumstances) its parent corporation, which at the time of such transaction will have a market value of twice the Purchase Price of the Right. 

Following the Distribution Date, exercisable Rights may be exercised, at the option of the holder thereof, without the payment of the
Purchase Price in cash. In any such case, the number of securities which such person would otherwise be entitled to receive upon the exercise of such Rights will be reduced by the amount of the Purchase Price. 

 Preferred Stock purchasable upon exercise of the Rights will not be redeemable. Each one
one-thousandth (1/1000th) of a share of Preferred Stock will be entitled to participating dividends per one one-thousandth (1/1000th) of a share equal to dividends which may from time to time be declared on a share of Common Stock. In the
event of liquidation, the Preferred Stock holders will be entitled to a preferential liquidation payment. These rights are protected by customary anti-dilution provisions. 

Redemption of Rights: At any time prior to the earlier to occur of (i) the close of business on the tenth day following the
Stock Acquisition Date and (ii) the close of business on the Final Expiration Date, the Board may redeem the outstanding Rights at a price of $.001 per Right, and may amend the Rights Agreement in any and all respects and particulars. If during
said ten-day period the Acquiring Person reduces his beneficial ownership to less than 20%, the Rights will again be redeemable. Subsequent to ten days following the Stock Acquisition Date, the Rights are not redeemable and the Board may amend the
Rights Agreement only to eliminate ambiguities or to provide additional benefits to the holders of the Rights (other than any Acquiring Person). 

Voting or Dividend Rights: Until a Right is exercised, the holder thereof, as such, will have no rights as a stockholder of the
Company, including, without limitation, the right to vote or to receive dividends. 
 Effect of Rights: The Rights have
certain anti-takeover effects. The Rights may cause substantial dilution to a person or group that attempts to acquire the Company on terms not approved by the Board. The Rights should not interfere with any merger or other business combination
approved by the Board prior to the time that holders of the Rights become entitled to exercise their Rights for Common Stock (or common stock of the surviving entity in a merger with the Company), since until that time the Rights may be redeemed by
the Board at $.001 per Right. 
 Amendment: Any of the provisions of the Rights Agreement may be amended by the Board
prior to the Distribution Date. After the Distribution Date, the provisions of the Rights Agreement may be amended by the Board in order to cure any ambiguity, to make changes which do not adversely affect the interests of holders of Rights or to
shorten or lengthen any time period under the Rights Agreement; provided, however, that no amendment to adjust the time period governing redemption shall be made at such time as the Rights are not redeemable. 

Rights Agreement: A copy of the Rights Agreement is being filed with the Securities and Exchange Commission as an Exhibit to a
Current Report on Form 8-K dated on or about September 29, 2010. A copy of the Rights Agreement is available free of charge from the Company. This summary description of the Rights does not purport to be complete and is qualified in its
entirety by reference to the Rights Agreement, which is incorporated herein by reference.Agreement and Plan of Merger, dated as of September 23, 2010

 Exhibit 10.1 

EXECUTION COPY 

AGREEMENT AND PLAN OF MERGER 

This AGREEMENT AND PLAN OF MERGER (this “Agreement”), dated as of September 23, 2010, is entered into by and
between Sun Healthcare Group, Inc., a Delaware corporation (“Sun”), and Sabra Health Care REIT, Inc., a Maryland corporation and a direct, wholly-owned subsidiary of Sun (“Sabra”). 

RECITALS 

WHEREAS, the Board of Directors of Sun has determined that it is appropriate and desirable to separate Sun and its subsidiaries into two
publicly-owned companies so that (i) the assets and liabilities relating to substantially all of Sun’s owned real property are allocated to Sabra and (ii) the other assets and liabilities relating to the historical operations of Sun
are allocated to SHG Services, Inc., a Delaware corporation and a direct, wholly-owned subsidiary of Sun (“New Sun”); 

WHEREAS, in order to effectuate the foregoing, Sun, New Sun and Sabra will enter into a Distribution Agreement (the “Distribution
Agreement”), which will provide for, among other things, subject to the conditions and upon the terms set forth therein, the transfer of certain assets and ownership interests to Sabra, the assumption by New Sun and Sabra of certain
liabilities, the distribution of New Sun common stock to Sun stockholders as of a certain record date (the “Distribution”) and the execution and delivery of certain other agreements in order to facilitate and provide for the
foregoing; 
 WHEREAS, the respective Boards of Directors of Sun and Sabra have approved this Agreement and the merger of Sun
with and into Sabra immediately following the Distribution (the “Merger”), with Sabra being the surviving entity (the “Surviving Company”), subject to the conditions and upon the terms contained in this Agreement
and in accordance with the Delaware General Corporation Law (the “DGCL”) and the Maryland General Corporation Law (the “MGCL”); 

WHEREAS, Sun, as the sole stockholder of Sabra, has approved the Merger; 

WHEREAS, the Board of Directors of Sun unanimously determined to recommend to its stockholders the adoption of this Agreement; and

 WHEREAS, it is intended that, for United States federal income tax purposes, (a) the Merger shall qualify as a
reorganization within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as amended (the “Code”), and the rules and regulations promulgated thereunder, and (b) this Agreement will be, and hereby is,
adopted as a plan of reorganization. 
  

 1 

 NOW THEREFORE, for valid consideration the sufficiency of which is hereby acknowledged and
in consideration of the foregoing and the mutual agreements contained in this Agreement, the parties hereby agree as follows: 

ARTICLE 1 

THE MERGER 

1.1 The Merger. In accordance with the DGCL and the MGCL, subject to the conditions and upon the terms contained in this
Agreement, at the Effective Time (as hereinafter defined), Sun shall be merged with and into Sabra, the separate corporate existence of Sun shall cease and Sabra shall continue as the Surviving Company. At the Effective Time, the effect of the
Merger shall be as provided in Section 259 of the DGCL and Section 3-114 of the MGCL. 
 1.2 Effective Time.
The Merger shall be effected by the filing of a certificate of merger (the “Certificate of Merger”) with the Secretary of State of the State of Delaware in accordance with Section 252 of the DGCL and the filing of articles of
merger (the “Articles of Merger”) with the State Department of Assessments and Taxation of Maryland (the “SDAT”) in accordance with Section 3-107 of the MGCL. The “Effective Time” means the
close of business on the later of the date upon which the Certificate of Merger is accepted for record by the Secretary of State of the State of Delaware or the Articles of Merger are accepted for record by the SDAT, or such later time which the
parties hereto shall have agreed upon and designated in such filings in accordance with the DGCL and the MGCL as the effective time of the Merger but not to exceed thirty (30) days after the later of the Certificate of Merger is accepted for
record by the Secretary of State of the State of Delaware or the Articles of Merger are accepted for record by the SDAT. 
 1.3
Organizational Documents of the Surviving Company. 
 1.3.1 From and after the Effective Time, the charter of Sabra, as in
effect immediately prior to the Effective Time, shall continue in full force and effect as the charter of the Surviving Company (the “Surviving Company Charter”) until thereafter amended as provided therein or by law. 

1.3.2 From and after the Effective Time, the Bylaws of Sabra as in effect immediately prior to the Effective Time, shall be the bylaws of
the Surviving Company (the “Surviving Company Bylaws”) until thereafter amended as provided therein or by applicable law. 

1.4 Directors. The directors of Sabra immediately prior to the Effective Time shall be the initial directors of the Surviving
Company and will hold office from the Effective Time until their successors are duly elected or appointed and qualified in the manner provided in the Surviving Company Charter and the Surviving Company Bylaws or as otherwise provided by law.

 1.5 Officers. The officers of Sabra immediately prior to the Effective Time shall be the initial officers of the
Surviving Company and will hold office from the Effective Time until their successors are duly elected or appointed and qualified in the manner provided in the Surviving Company Bylaws or as otherwise provided by law. 

1.6 Additional Actions. Subject to the terms of this Agreement, the parties hereto shall take all such reasonable and lawful
action as may be necessary or appropriate in order to effectuate the Merger. If, at any time after the Effective Time, the Surviving Company shall consider or be advised that any deeds, bills of sale, assignments, assurances or any other actions or
things are necessary or desirable to vest, perfect or confirm, of record or otherwise, in the Surviving Company its right, title or interest in, to or under any of the rights, properties or assets of Sun acquired or to be acquired by the Surviving
Company as a result of, or in connection with, the Merger or otherwise to carry out this Agreement, the officers of the Surviving Company shall be authorized to execute and deliver, in the name and on behalf of Sun, all such deeds, bills of sale,
assignments and 
  

 2 

 
assurances and to take and do, in the name and on behalf of Sun or otherwise, all such other actions and things as may be necessary or desirable to vest, perfect or confirm any and all right,
title and interest in, to and under such rights, properties or assets in the Surviving Company or otherwise to carry out this Agreement. 

1.7 Conversion of Securities. At the Effective Time, by virtue of the Merger and without any action on the part of Sabra, Sun or
the holder of any of the following securities: 
 1.7.1 Every three shares of common stock of Sun, par value
$0.01 per share (“Sun Common Stock”), issued and outstanding immediately prior to the Effective Time shall be converted into one validly issued, fully paid and nonassessable share of common stock of Sabra, par value $0.01 per share
(“Sabra Common Stock”). Such shares of Sabra Common Stock shall be uncertificated and American Stock Transfer & Trust Company, LLC, as exchange agent, shall electronically issue shares of Sabra Common Stock to holders of
Sun Common Stock who hold such shares at the Effective Time, or to such stockholders’ bank, broker or other nominee on such stockholders’ behalf by way of direct registration in book-entry form. 

1.7.2 From and after the Effective Time, holders of certificates formerly evidencing Sun Common Stock shall cease to have
any rights as stockholders of Sun, except as provided by law; provided, however, that such holders shall have the rights set forth in Section 1.7 herein. 

1.7.3 Notwithstanding anything herein to the contrary, no fractional shares of Sabra Common Stock shall be issued in
connection with the Merger. In lieu of any fractional shares of Sabra Common Stock, each holder of Sun Common Stock who, but for the provisions of this Section 1.7.3, would be entitled to receive a fractional share of Sabra Common Stock
pursuant to the Merger shall receive cash without any interest thereon. American Stock Transfer & Trust Company, LLC, as exchange agent, shall aggregate all fractional shares that would otherwise have been distributed to Sun stockholders
into whole shares, sell such whole shares in the open market at prevailing market prices and distribute the net cash proceeds from these sales to those Sun stockholders who would have been entitled to receive fractional shares. This payment shall be
made from these sales on a pro rata basis based on the fractional interest in a share of Sabra Common Stock that the Sun stockholder would have otherwise been entitled to receive. Such fractional share interests shall not entitle the owner thereof
to any rights of a stockholder of the Surviving Company. Sabra shall be obligated to pay any brokerage or other fees in connection with the sale of aggregated fractional shares of Sabra Common Stock. 

1.8 Sun Common Stock Certificates. Each outstanding certificate that, immediately prior to the Effective Time, evidenced Sun
Common Stock shall, from the Effective Time, be deemed cancelled and shall no longer represent any ownership interest. 
 1.9
Plan of Reorganization. Each party hereto shall use its commercially reasonable efforts to cause the Merger to qualify, and will not knowingly take any actions or cause any actions to be taken which could reasonably be expected to prevent the
Merger from qualifying, as a reorganization within the meaning of Section 368(a) of the Code. 
 ARTICLE 2

 CONDITIONS OF MERGER 

2.1 Conditions Precedent. The obligations of the parties to this Agreement to consummate the Merger and the transactions
contemplated by this Agreement shall be subject to fulfillment or waiver by the parties hereto at or prior to the Effective Time of each of the following conditions: 

2.1.1 The Distribution shall have been completed; 

2.1.2 Sabra’s listing application with the NASDAQ Global Select Market shall have been approved, subject to official
notice of issuance; 
  

 3 

 2.1.3 No stop order shall be in effect with respect to Sabra’s
Registration Statement on Form S-4 filed with the Securities and Exchange Commission to register under the Securities Act of 1933, as amended, the issuance of shares of Sabra Common Stock in the Merger; 

2.1.4 No preliminary or permanent injunction or other order, decree or ruling issued by a court of competent jurisdiction
or by a government, regulatory or administrative agency or commission, and no statute, rule, regulation or executive order promulgated or enacted by any governmental authority, shall be in effect preventing the consummation of the Merger; and

 2.1.5 No litigation or proceeding challenging or seeking to restrain the Merger shall be pending or
threatened. 
 ARTICLE 3 

TERMINATION AND AMENDMENT 

3.1 Termination. This Agreement may be terminated and the Merger contemplated hereby may be abandoned at any time prior to the
Effective Time if the Board of Directors of Sun should determine that for any reason the completion of the transactions provided for herein would be inadvisable or not in the best interest of Sun or its stockholders. In the event of such termination
and abandonment, this Agreement shall become void and neither Sun or Sabra nor their respective stockholders, members, directors or officers shall have any liability with respect to such termination and abandonment. 

3.2 Amendment. At any time prior to the Effective Time, this Agreement may, to the extent permitted by the DGCL and the MGCL, be
supplemented, amended or modified by a written document with the mutual consent of the parties to this Agreement. 
 ARTICLE 4

 MISCELLANEOUS PROVISIONS 

4.1 Governing Law. This Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware (other
than the laws regarding choice of laws and conflicts of laws) as to all matters, including matters of validity, construction, effect, performance and remedies. 

4.2 Counterparts. This Agreement may be executed by facsimile signatures and in any number of counterparts with the same effect as
if all signatory parties had signed the same document. All counterparts shall be construed together and shall constitute one and the same instrument. 

4.3 Complete Agreement. This Agreement shall constitute the entire agreement among the parties hereto with respect to the subject
matter hereof and shall supersede all previous contracts or agreements, whether oral or written, with respect to such subject matter. 

4.4 Severability. Any provision of this Agreement which is prohibited or unenforceable in any jurisdiction shall, as to such
jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof. Any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such
provision in any other jurisdiction. 
 4.5 No Third Party Beneficiaries. Nothing contained in this Agreement is intended
by the parties hereto to expand the rights and remedies of any person or entity not party hereto against any party hereto as compared to the rights and remedies which such person or entity would have had against any party hereto had the parties
hereto not consummated the transactions contemplated hereby. 
 * * * 

 

 4 

 IN WITNESS WHEREOF, Sabra and Sun have caused this Agreement to be executed as of the date first written
above by their respective officers thereunto duly authorized. 
  

			
	SUN HEALTHCARE GROUP, INC.
		
	By:	 	/S/    RICHARD K.
MATROS        
	Name:	 	Richard K. Matros
	Title:	 	Chairman of the Board and Chief Executive Officer
	
	SABRA HEALTH CARE REIT, INC.
		
	By:	 	/S/    RICHARD K.
MATROS        
	Name:	 	Richard K. Matros
	Title:	 	Chief Executive Officer and President

  

 5

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