Document:

EX-4.1

PORTFOLIO RECOVERY ASSOCIATES, INC.

(Issuer)

and

WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Trustee

INDENTURE

Dated as of August 13, 2013

3.00% Convertible Senior Notes due 2020

	 	 	 	 	 	 	 	 	 
	.
ARTICLE I
	 	DEFINITIONS
	 		1	
	Section 1.01
	 	Definitions
	 		1	
	Section 1.02
	 	References to Interest
	 		11	
	ARTICLE II
	 	ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES
	 		11	
	Section 2.01
	 	Designation and Amount
	 		11	
	Section 2.02
	 	Form of Notes
	 		11	
	Section 2.03
	 	Date and Denomination of Notes; Payments of Interest and Defaulted Amounts
	 		12	
	Section 2.04
	 	Execution, Authentication and Delivery of Notes
	 		13	
	Section 2.05
	 	Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary
	 		14	
	Section 2.06
	 	Mutilated, Destroyed, Lost or Stolen Notes
	 		19	
	Section 2.07
	 	Temporary Notes
	 		20	
	Section 2.08
	 	Cancellation of Notes Paid, Converted, Etc
	 		20	
	Section 2.09
	 	CUSIPNumbers
	 		21	
	Section 2.10
	 	Additional Notes; Repurchases
	 		21	
	ARTICLE III
	 	SATISFACTION AND DISCHARGE
	 		21	
	Section 3.01
	 	Satisfaction and Discharge
	 		21	
	ARTICLE IV
	 	PARTICULAR COVENANTS OF THE COMPANY
	 		22	
	Section 4.01
	 	Payment of Principal and Interest
	 		22	
	Section 4.02
	 	Maintenance of Office or Agency
	 		22	
	Section 4.03
	 	Appointments to Fill Vacancies in Trustee’s Office
	 		22	
	Section 4.04
	 	Provisions as to Paying Agent
	 		22	
	Section 4.05
	 	Existence
	 		24	
	Section 4.06
	 	Rule 144A Information Requirement and Annual Reports
	 		24	
	Section 4.07
	 	Stay, Extension and Usury Laws
	 		25	
	Section 4.08
	 	Compliance Certificate; Statements as to Defaults
	 		26	
	ARTICLE V
	 	LISTS OF HOLDERS AND REPORTS BY THE COMPANY AND THE TRUSTEE
	 		26	
	Section 5.01
	 	Lists of Holders
	 		26	
	Section 5.02
	 	Preservation and Disclosure of Lists
	 		26	
	ARTICLE VI
	 	DEFAULTS AND REMEDIES
	 		26	
	Section 6.01
	 	Events of Default
	 		26	
	Section 6.02
	 	Acceleration; Rescission and Annulment
	 		28	
	Section 6.03
	 	Additional Interest in Lieu of Reporting Default
	 		28	
	Section 6.04
	 	Payments of Notes on Default; Suit Therefor
	 		29	
	Section 6.05
	 	Application of Monies Collected by Trustee
	 		31	
	Section 6.06
	 	Proceedings by Holders
	 		31	
	Section 6.07
	 	Proceedings by Trustee
	 		32	
	Section 6.08
	 	Remedies Cumulative and Continuing
	 		32	
	Section 6.09
	 	Direction of Proceedings and Waiver of Defaults by Majority of Holders
	 		32	
	Section 6.10
	 	Notice of Defaults
	 		33	
	Section 6.11
	 	Undertaking to Pay Costs
	 		33	
	ARTICLE VII
	 	CONCERNING THE TRUSTEE
	 		34	
	Section 7.01
	 	Duties and Responsibilities of Trustee
	 		34	
	Section 7.02
	 	Reliance on Documents, Opinions, Etc
	 		35	
	Section 7.03
	 	No Responsibility for Recitals, Etc
	 		37	
	Section 7.04
	 	Trustee, Paying Agents, Conversion Agents, Bid Solicitation Agent or Note Registrar May Own Notes
	 		37	
	Section 7.05
	 	Monies and Shares of Common Stock to Be Held in Trust
	 		37	
	Section 7.06
	 	Compensation and Expenses of Trustee
	 		37	
	Section 7.07
	 	Eligibility of Trustee
	 		38	
	Section 7.08
	 	Resignation or Removal of Trustee
	 		38	
	Section 7.09
	 	Acceptance by Successor Trustee
	 		39	
	Section 7.10
	 	Succession by Merger, Etc
	 		40	
	Section 7.11
	 	Trustee’s Application for Instructions from the Company
	 		40	
	ARTICLE VIII
	 	CONCERNING THE HOLDERS
	 		40	
	Section 8.01
	 	Action by Holders
	 		40	
	Section 8.02
	 	Proof of Execution by Holders
	 		41	
	Section 8.03
	 	Who Are Deemed Absolute Owners
	 		41	
	Section 8.04
	 	Company-Owned Notes Disregarded
	 		41	
	Section 8.05
	 	Revocation of Consents; Future Holders Bound
	 		42	
	ARTICLE IX
	 	HOLDERS’ MEETINGS
	 		42	
	Section 9.01
	 	Purpose of Meetings
	 		42	
	Section 9.02
	 	Call of Meetings by Trustee
	 		42	
	Section 9.03
	 	Call of Meetings by Company or Holders
	 		43	
	Section 9.04
	 	Qualifications for Voting
	 		43	
	Section 9.05
	 	Regulations
	 		43	
	Section 9.06
	 	Voting
	 		43	
	Section 9.07
	 	No Delay of Rights by Meeting
	 		44	
	ARTICLE X
	 	SUPPLEMENTAL INDENTURES
	 		44	
	Section 10.01
	 	Supplemental Indentures Without Consent of Holders
	 		44	
	Section 10.02
	 	Supplemental Indentures with Consent of Holders
	 		45	
	Section 10.03
	 	Effect of Supplemental Indentures
	 		46	
	Section 10.04
	 	Notation on Notes
	 		46	
	Section 10.05
	 	Evidence of Compliance of Supplemental Indenture to Be Furnished Trustee
	 		46	
	ARTICLE XI
	 	CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE
	 		46	
	Section 11.01
	 	Company May Consolidate, Etc
	 		46	
	Section 11.02
	 	[Reserved]	 		47	
	Section 11.03
	 	Successor Corporation to Be Substituted
	 		47	
	Section 11.04
	 	Evidence to Be Given to Trustee
	 		48	
	ARTICLE XII
	 	NO PERSONAL LIABILITY OF DIRECTORS, OFFICERS, EMPLOYEES OR STOCKHOLDERS
	 		48	
	Section 12.01
	 	Indenture and Notes Solely Corporate Obligations
	 		48	
	ARTICLE XIII
	 	CONVERSION OF NOTES
	 		48	
	Section 13.01
	 	Conversion Privilege
	 		48	
	Section 13.02
	 	Conversion Procedure; Settlement Upon Conversion
	 		50	

	 	 	Section 13.03 Increased Conversion Rate Applicable to Certain Notes Surrendered in Connection with
Make-Whole Fundamental Changes 54

	 	 	 	 	 	 	 	 	 
	Section 13.04
	 	Adjustment of Conversion Rate	 	 	55	 
	Section 13.05
	 	Adjustments of Prices	 	 	63	 
	Section 13.06
	 	Shares to Be Fully Paid	 	 	63	 
	Section 13.07
	 	Effect of Recapitalizations, Reclassifications and Changes of the Common Stock	 	 	63	 
	Section 13.08
	 	Certain Covenants	 	 	65	 
	Section 13.09
	 	Responsibility of Trustee	 	 	65	 
	Section 13.10
	 	Stockholder Rights Plans	 	 	65	 
	Section 13.11
	 	Limit of Issuance of Common Stock Upon Conversion	 	 	66	 
	Section 13.12
	 	Withholding Taxes for Adjustments in Conversation Rate	 	 	66	 
	ARTICLE XIV
	 	REPURCHASE OF NOTES AT OPTION OF HOLDERS	 	 	66	 
	Section 14.01
	 	Repurchase at Option of Holders Upon a Fundamental Change	 	 	66	 
	Section 14.02
	 	Withdrawal of Fundamental Change Repurchase Notice	 	 	68	 
	Section 14.03
	 	Deposit of Fundamental Change Repurchase Price	 	 	69	 
	Section 14.04
	 	Covenant to Comply with Applicable Laws Upon Repurchase of Notes	 	 	69	 
	ARTICLE XV
	 	[RESERVED]	 	 	69	 
	ARTICLE XVI
	 	MISCELLANEOUS PROVISIONS	 	 	70	 
	Section 16.01
	 	Provisions Binding on Company’s Successors	 	 	70	 
	Section 16.02
	 	Official Acts by Successor Corporation	 	 	70	 
	Section 16.03
	 	Addresses for Notices, Etc	 	 	70	 
	Section 16.04
	 	Governing Law; Jury Trial Waiver	 	 	70	 
	Section 16.05
	 	Evidence of Compliance with Conditions Precedent; Certificates and Opinions of Counsel to Trustee	 	 	71	 
	Section 16.06
	 	Legal Holidays	 	 	71	 
	Section 16.07
	 	No Security Interest Created	 	 	71	 
	Section 16.08
	 	Benefits of Indenture	 	 	71	 
	Section 16.09
	 	Table of Contents, Headings, Etc	 	 	71	 
	Section 16.10
	 	Authenticating Agent	 	 	71	 
	Section 16.11
	 	Execution in Counterparts	 	 	72	 
	Section 16.12
	 	Severability	 	 	73	 
	Section 16.13
	 	Force Majeure	 	 	73	 
	Section 16.14
	 	Calculations	 	 	73	 
	Section 16.15
	 	USA PATRIOT Act	 	 	73	 
	Section 16.16
	 	No Adverse Interpretation of Other Agreements	 	 	73	 

EXHIBIT

Exhibit A Form of Note A-1

INDENTURE, dated as of August 13, 2013, between PORTFOLIO RECOVERY ASSOCIATES,
INC., a Delaware corporation, as issuer (the “Company,” as more fully set forth in Section 1.01)
and WELLS FARGO BANK, NATIONAL ASSOCIATION, a national banking association, as trustee (the
“Trustee,” as more fully set forth in Section 1.01).

W I T N E S S E T H:

WHEREAS, for its lawful corporate purposes, the Company has duly authorized the issuance
of the Company’s 3.00% Convertible Senior Notes due 2020 (the “Notes”), initially in an aggregate
principal amount not to exceed $250,000,000 (as increased by an amount equal to the aggregate
principal amount of up to $37,500,000 of additional Notes purchased by the Initial Purchasers
pursuant to the exercise of their option to purchase additional Notes as set forth in the Purchase
Agreement), and the Company has duly authorized the execution and delivery of this Indenture.

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

That in order to declare the terms and conditions upon which the Notes are, and are to be,
authenticated, issued and delivered, and in consideration of the premises and of the purchase and
acceptance of the Notes by the Holders thereof, the Company covenants and agrees with the Trustee
for the equal and proportionate benefit of the respective Holders from time to time of the Notes
(except as otherwise provided below), as follows:

ARTICLE I

Definitions

Section 1.01 Definitions. The terms defined in this Section 1.01 (except as herein
otherwise expressly provided or unless the context otherwise requires) for all purposes of this
Indenture and of any indenture supplemental hereto shall have the respective meanings specified in
this Section 1.01. The words “herein,” “hereof,” “hereunder,” and words of similar import refer to
this Indenture as a whole and not to any particular Article, Section or other subdivision. The
terms defined in this Article include the plural as well as the singular.

“Additional Interest” means all amounts, if any, payable pursuant to Section 4.06(d),
Section 4.06(e) and Section 6.03, as applicable.

“Additional Shares” shall have the meaning specified in Section 13.03.

“Affiliate” of any specified Person means any other Person directly or indirectly controlling
or controlled by or under direct or indirect common control with such specified Person. For the
purposes of this definition, “control,” when used with respect to any specified Person means the
power to direct or cause the direction of the management and policies of such Person, directly or
indirectly, whether through the ownership of voting securities, by contract or otherwise; and the
terms “controlling” and “controlled” have meanings correlative to the foregoing.

“Averaging Period” shall have the meaning specified in Section 13.04(e).

“Bid Solicitation Agent” means the Company or the Person appointed by the Company to solicit
bids for the Trading Price of the Notes in accordance with Section 13.01(b)(i). The Company shall
initially act as the Bid Solicitation Agent.

“Board of Directors” means the board of directors of the Company or a committee of such board
duly authorized to act for it hereunder.

“Board Resolution” means a copy of a resolution certified by the Secretary or an Assistant
Secretary of the Company to have been duly adopted by the Board of Directors, and to be in full
force and effect on the date of such certification, and delivered to the Trustee.

“Business Day” means, with respect to any Note, any day other than a Saturday, a Sunday or a
day on which the Federal Reserve Bank of New York is authorized or required by law or executive
order to close or be closed.

“Capital Stock” means, for any entity, any and all shares, interests, rights to purchase,
warrants, options, participations or other equivalents of or interests in (however designated)
stock issued by that entity.

“Cash Settlement” shall have the meaning specified in Section 13.02(a).

“close of business” means 5:00 p.m. (New York City time).

“Combination Settlement” shall have the meaning specified in Section 13.02(a).

“Commission” means the U.S. Securities and Exchange Commission.

“Common Equity” of any Person means Capital Stock of such Person that is generally entitled
(a) to vote in the election of directors of such Person or (b) if such Person is not a corporation,
to vote or otherwise participate in the selection of the governing body, partners, managers or
others that will control the management or policies of such Person.

“Common Stock” means the common stock of the Company, par value $0.01 per share, at the date
of this Indenture.

“Company” shall have the meaning specified in the first paragraph of this Indenture, and
subject to the provisions of Article XI, shall include its successors and assigns.

“Company Order” means a written order of the Company, signed by (a) the Company’s Chief
Executive Officer, Chief Financial Officer, President, Executive or Senior Vice President, or any
Vice President (whether or not designated by a number or numbers or word or words added before or
after the title “Vice President”) and (b) any such other Officer designated in clause (a) of this
definition or the Company’s Treasurer or any Assistant Treasurer or Secretary or any Assistant
Secretary, and delivered to the Trustee.

“Conversion Agent” shall have the meaning specified in Section 4.02.

“Conversion Date” shall have the meaning specified in Section 13.02(c).

“Conversion Obligation” shall have the meaning specified in Section 13.01(a).

“Conversion Price” means as of any date, $1,000 divided by the Conversion Rate as of such
date.

“Conversion Rate” shall have the meaning specified in Section 13.01(a).

“Corporate Trust Office” means the designated office of the Trustee at which at any time its
corporate trust business shall be administered, which office at the date hereof is located at 7000
Central Parkway NE, Suite 550, Atlanta, GA 30328, Attention: Corporate Trust Services, or such
other address as the Trustee may designate from time to time by notice to the Holders and the
Company, or the designated corporate trust office of any successor trustee (or such other address
as such successor trustee may designate from time to time by notice to the Holders and the
Company).

“Custodian” means the Trustee, as custodian for DTC, with respect to the Global Notes, or any
successor entity thereto.

“Daily Conversion Value” means, for each of the 40 consecutive Trading Days during the
Observation Period, 2.5% of the product of (a) the Conversion Rate on such Trading Day and (b) the
Daily VWAP on such Trading Day.

“Daily Measurement Value” means, the Specified Dollar Amount divided by 40.

“Daily Settlement Amount” for each of the 40 consecutive Trading Days during the Observation
Period, shall consist of:

(a) cash equal to the lesser of (i) the Daily Measurement Value and (ii) the Daily Conversion
Value; and

(b) to the extent the Daily Conversion Value on such Trading Day exceeds the Daily Measurement
Value, a number of shares of Common Stock equal to (1) the difference between the Daily Conversion
Value and the Daily Measurement Value, divided by (2) the Daily VWAP for such Trading Day.

“Daily VWAP” means, for each of the 40 consecutive Trading Days during the applicable
Observation Period, the per share volume-weighted average price as displayed under the heading
“Bloomberg VWAP” on Bloomberg page “PRAA <equity> AQR” (or its equivalent successor if such
page is not available) in respect of the period from the scheduled open of trading until the
scheduled close of trading of the primary trading session on such Trading Day (or if such
volume-weighted average price is unavailable, the market value of one share of the Common Stock on
such Trading Day determined, using a volume-weighted average method, by a nationally recognized
independent investment banking firm retained for this purpose by the Company). The “Daily VWAP”
shall be determined without regard to after-hours trading or any other trading outside of the
regular trading session trading hours.

“Default” means any event that is, or after notice or passage of time, or both, would be, an
Event of Default.

“Defaulted Amounts” means any amounts on any Note (including, without limitation, the
Fundamental Change Repurchase Price, principal and interest) that are payable but are not
punctually paid or duly provided for.

“Depositary” means, with respect to each Global Note, the Person specified in Section 2.05(c)
as the Depositary with respect to such Notes, until a successor shall have been appointed and
become such pursuant to the applicable provisions of this Indenture, and thereafter, “Depositary”
shall mean or include such successor.

“Distributed Property” shall have the meaning specified in Section 13.04(c).

“DTC” means The Depository Trust Company.

“Effective Date” shall have the meaning specified in Section 13.03(c); provided that, solely
for purposes of Section 13.04, “Effective Date” means the first date on which shares of Common
Stock trade on the applicable exchange or in the applicable market, regular way, reflecting the
relevant share split or share combination, as applicable.

“Event of Default” shall have the meaning specified in Section 6.01.

“Ex-Dividend Date” means the first date on which shares of the Common Stock trade on the
applicable exchange or in the applicable market, regular way, without the right to receive the
issuance, dividend or distribution in question, from the Company or, if applicable, from the seller
of Common Stock on such exchange or market (in the form of due bills or otherwise) as determined by
such exchange or market.

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and
regulations promulgated thereunder.

“Form of Assignment and Transfer” means the “Form of Assignment and Transfer” in substantially
the form attached as Attachment 3 to the Form of Note attached hereto as Exhibit A.

“Form of Fundamental Change Repurchase Notice” means the “Form of Fundamental Change
Repurchase Notice” in substantially the form attached as Attachment 2 to the form of Note attached
hereto as Exhibit A.

“Form of Notice of Conversion” means the “Form of Notice of Conversion” in substantially the
form attached as Attachment 1 to the form of Note attached hereto as Exhibit A.

“Fundamental Change” shall be deemed to have occurred at the time after the Notes are
originally issued if any of the following occurs:

(a) a “person” or “group” within the meaning of Section 13(d) of the Exchange Act, other than
the Company, its Subsidiaries and the employee benefit plans of the Company and its Subsidiaries,
files a Schedule TO or any schedule, form or report under the Exchange Act disclosing that such
person or group has become the “beneficial owner,” as defined in Rule 13d-3 under the Exchange Act,
of the Company’s Common Equity representing more than 50% of the voting power of the Company’s
Common Equity;

(b) the consummation of (A) any recapitalization, reclassification or change of the Common
Stock (other than changes resulting from a subdivision or combination) as a result of which the
Common Stock would be converted into, or exchanged for, stock, other securities, other property or
assets; (B) any share exchange, consolidation or merger of the Company pursuant to which the Common
Stock will be converted into cash, securities or other property, other than a merger of the Company
solely for the purpose of changing the Company’s jurisdiction of incorporation, that results in a
reclassification, conversion or exchange of outstanding shares of the Common Stock solely into
shares of common stock of the surviving entity; or (C) any sale, lease or other transfer in one
transaction or a series of transactions of all or substantially all of the consolidated assets of
the Company and its Subsidiaries, taken as a whole, to any Person other than one of the Company’s
Subsidiaries; provided, however, that a transaction described in clause (B) in which the holders of
all classes of the Company’s Common Equity immediately prior to such transaction own, directly or
indirectly, more than 50% of all classes of Common Equity representing more than 50% of the total
voting power of the continuing or surviving corporation or transferee or the parent thereof
immediately after such transaction in substantially the same proportions as such ownership
immediately prior to such transaction shall not be a fundamental change pursuant to this clause
(b) (this proviso, the “Majority Ownership Exception”); or

(c) the Common Stock (or other common stock or ordinary shares underlying the Notes) ceases to
be listed or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market or The
NASDAQ Global Market (or any of their respective successors);

provided, however, that a transaction or transactions described in clauses (a) or (b) above
shall not constitute a Fundamental Change if at least 90% of the consideration received or to be
received by the common stockholders of the Company, excluding cash payments for fractional shares
and cash payments made in respect of dissenters’ appraisal rights, in connection with such
transaction or transactions consists of shares of common stock or ordinary shares that are listed
or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ
Global Market (or any of their respective successors) or will be so listed or quoted when issued or
exchanged in connection with such transaction or transactions, and, as a result thereof, the Notes
become convertible into such consideration, excluding cash payments for fractional shares pursuant
to Section 13.02 (this proviso, the “Listed Stock Exception”).

“Fundamental Change Company Notice” shall have the meaning specified in Section 14.01(c).

“Fundamental Change Repurchase Date” shall have the meaning specified in Section 14.01.

“Fundamental Change Repurchase Notice” shall have the meaning specified in
Section 14.01(b)(i).

“Fundamental Change Repurchase Price” shall have the meaning specified in Section 14.01.

“Global Note” shall have the meaning specified in Section 2.05(b).

“Holder,” as applied to any Note, or other similar terms (but excluding the term “beneficial
holder,” “beneficial owner” or “owner of a beneficial interest” or terms of similar import), means
any Person in whose name at the time a particular Note is registered on the Note Register.

“Indenture” means this instrument as originally executed or, if amended or supplemented as
herein provided, as so amended or supplemented.

“Initial Purchasers” means William Blair & Company, LLC, JMP Securities LLC, SunTrust Robinson
Humphrey, Inc. and Raymond James & Associates, Inc.

“Interest Payment Date” means each February 1 and August 1 of each year, beginning on
February 1, 2014.

“Last Reported Sale Price” of the Common Stock on any date means the closing sale price per
share (or if no closing sale price is reported, the average of the bid and ask prices or, if more
than one in either case, the average of the average bid and the average ask prices) on that date as
reported in composite transactions for the principal U.S. national or regional securities exchange
on which the Common Stock is traded. If the Common Stock is not listed for trading on a U.S.
national or regional securities exchange on the relevant date, the “Last Reported Sale Price” shall
be the last quoted bid price for the Common Stock in the over-the-counter market on the relevant
date as reported by OTC Markets Group Inc. or a similar organization. If the Common Stock is not
so quoted, the “Last Reported Sale Price” shall be the average of the mid-point of the last bid and
ask prices for the Common Stock on the relevant date from each of at least three nationally
recognized independent investment banking firms selected by the Company for this purpose.

“Listed Stock Exception” shall have the meaning specified in the definition of Fundamental
Change in this Section 1.01.

“Majority Ownership Exception” shall have the meaning specified in the definition of
Fundamental Change in this Section 1.01.

“Make-Whole Fundamental Change” means any transaction or event that constitutes a Fundamental
Change (as defined above and determined after giving effect to any exceptions to or exclusions from
such definition, but without regard to the Majority Ownership Exception).

“Market Disruption Event” means:

(i) for purposes of determining whether the Notes will be convertible pursuant to
Section 13.01(b)(i), the occurrence or existence during the one-half hour period ending on the
scheduled close of trading on the principal U.S. national or regional securities exchange on which
the Common Stock is listed for trading of any material suspension or limitation imposed on trading
(by reason of movements in price exceeding limits permitted by the stock exchange or otherwise) in
the Common Stock or in any options contracts or future contracts relating to the Common Stock; and

(ii) for purposes of determining any Observation Period only, (x) a failure by the primary
U.S. national or regional securities exchange or market on which the Common Stock is listed or
admitted for trading to open for trading during its regular trading session or (y) the occurrence
or existence prior to 1:00 p.m., New York City time, on any Scheduled Trading Day for the Common
Stock for more than one half-hour period in the aggregate during regular trading hours of any
suspension or limitation imposed on trading (by reason of movements in price exceeding limits
permitted by the relevant stock exchange or otherwise) in the Common Stock or in any options,
contracts or future contracts relating to the Common Stock.

“Maturity Date” means August 1, 2020.

“Measurement Period” shall have the meaning specified in Section 13.01(b)(i).

“Merger Event” shall have the meaning specified in Section 13.07(a).

“Note” or “Notes” shall have the meaning specified in the first paragraph of the recitals of
this Indenture.

“Note Register” shall have the meaning specified in Section 2.05(a).

“Note Registrar” shall have the meaning specified in Section 2.05(a).

“Notice of Conversion” shall have the meaning specified in Section 13.02(b).

“Observation Period,” with respect to any Note surrendered for conversion, means: (i) if the
relevant Conversion Date occurs prior to February 1, 2020, the 40 consecutive Trading-Day period
beginning on, and including, the second Trading Day after such Conversion Date; and (ii) if the
relevant Conversion Date occurs on or after February 1, 2020, the 40 consecutive Trading Days
beginning on, and including, the 42nd Scheduled Trading Day immediately preceding the Maturity
Date.

“Offering Memorandum” means (a) with respect to the Original Notes, the Original Offering
Memorandum and (b) with respect to any additional Notes issued pursuant to Section 2.10, the
offering memorandum, prospectus or similar offering document relating to the offering and sale of
such additional Notes.

“Original Notes” means the $250,000,000 aggregate principal amount of Notes (as increased by
an amount equal to the aggregate principal amount of any additional Notes purchased by the Initial
Purchasers pursuant to the exercise of their option to purchase additional Notes as set forth in
the Purchase Agreement), covered by the Original Offering Memorandum.

“Original Offering Memorandum” means the preliminary offering memorandum dated August 6, 2013,
as supplemented by the pricing term sheet dated August 7, 2013, relating to the offering and sale
of the Notes.

“Officer” means, with respect to the Company, the Chief Executive Officer, the Chief Financial
Officer, the President, the Treasurer, any Assistant Treasurer, the Secretary, any Assistant
Secretary, any Executive or Senior Vice President or any Vice President (whether or not designated
by a number or numbers or word or words added before or after the title “Vice President”).

“Officer’s Certificate,” when used with respect to the Company, means a certificate that is
delivered to the Trustee and that is signed by an Officer of the Company. Each such certificate
shall include the statements provided for in Section 16.05 if and to the extent required by the
provisions of such Section. The Officer giving an Officer’s Certificate pursuant to Section 4.08
shall be the principal executive, financial or accounting officer of the Company.

“open of business” means 9:00 a.m. (New York City time).

“Opinion of Counsel” means an opinion in writing signed by legal counsel, who may be an
employee of or counsel to the Company that is delivered to the Trustee, which opinion may contain
customary exceptions and qualifications as to the matters set forth therein. Each such opinion
shall include the statements provided for in Section 16.05 if and to the extent required by the
provisions of such Section 16.05.

“outstanding,” when used with reference to Notes, shall, subject to the provisions of
Section 8.04, mean, as of any particular time, all Notes authenticated and delivered by the Trustee
under this Indenture, except:

(a) Notes theretofore canceled by the Trustee or accepted by the Trustee for cancellation;

(b) Notes, or portions thereof, that have become due and payable and in respect of which
monies in the necessary amount shall have been deposited in trust with the Trustee or with any
Paying Agent (other than the Company) or shall have been set aside and segregated in trust by the
Company (if the Company shall act as its own Paying Agent);

(c) Notes that have been paid pursuant to Section 2.06 or Notes in lieu of which, or in
substitution for which, other Notes shall have been authenticated and delivered pursuant to the
terms of Section 2.06 unless proof satisfactory to the Trustee is presented that any such Notes are
held by protected purchasers in due course;

(d) Notes converted pursuant to Article XIII and required to be cancelled pursuant to
Section 2.08; and

(e) Notes repurchased pursuant to the penultimate sentence of Section 2.10.

“Paying Agent” shall have the meaning specified in Section 4.02.

“Person” means an individual, a corporation, a limited liability company, an association, a
partnership, a joint venture, a joint stock company, a trust, an unincorporated organization or a
government or an agency or a political subdivision thereof.

“Physical Notes” means permanent certificated Notes in registered form issued in denominations
of $1,000 principal amount and multiples thereof.

“Physical Settlement” shall have the meaning specified in Section 13.02(a).

“Predecessor Note” of any particular Note means every previous Note evidencing all or a
portion of the same debt as that evidenced by such particular Note; and, for the purposes of this
definition, any Note authenticated and delivered under Section 2.06 in lieu of or in exchange for a
mutilated, lost, destroyed or stolen Note shall be deemed to evidence the same debt as the
mutilated, lost, destroyed or stolen Note that it replaces.

“Purchase Agreement” means that certain Purchase Agreement, dated as of August 7, 2013 among
the Company and the Initial Purchasers relating to the issuance and sale of the Original Notes.

“Reference Property” shall have the meaning specified in Section 13.07(a).

“Regular Record Date,” with respect to any Interest Payment Date, means the January 15 or
July 15 (whether or not such day is a Business Day) immediately preceding the applicable February 1
or August 1 Interest Payment Date, respectively.

“Resale Restriction Termination Date,” (i) with respect to the Notes, shall have the meaning
specified in the legend set forth in Section 2.05(c), and (ii) with respect to the Common Stock
issued upon conversion of the Notes, shall have the meaning specified in the legend set forth in
Section 2.05(d).

“Responsible Officer” means, when used with respect to the Trustee, any officer within the
corporate trust department of the Trustee, including any vice president, any assistant vice
president, any trust officer or assistant trust officer or any other officer of the Trustee who
customarily performs functions similar to those performed by the persons who at the time shall be
such officers, respectively, or to whom any corporate trust matter is referred because of such
person’s knowledge of and familiarity with the particular subject and who shall have direct
responsibility for the administration of this Indenture.

“Restricted Securities” shall have the meaning specified in Section 2.05(c).

“Rule 144” means Rule 144 as promulgated under the Securities Act.

“Rule 144A” means Rule 144A as promulgated under the Securities Act.

“Scheduled Trading Day” means a day that is scheduled to be a Trading Day on the principal
U.S. national or regional securities exchange or market on which the Common Stock is listed or
admitted for trading. If the Common Stock is not so listed or admitted for trading, “Scheduled
Trading Day” means a Business Day.

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations
promulgated thereunder.

“Settlement Amount” has the meaning specified in Section 13.02(a)(ii).

“Settlement Method” means, with respect to any conversion of Notes, Physical Settlement, Cash
Settlement or Combination Settlement, as elected (or deemed to have been elected) by the Company.

“Settlement Notice” has the meaning specified in Section 13.02(a)(i).

“Shelf Registration Statement” means a registration statement of the Company filed with the
Commission on either (i) Form S-3 (or any successor form or other appropriate form under the
Securities Act) or (ii) if the Company is not permitted to file a registration statement on Form
S-3, an evergreen registration statement on Form S-1 (or any successor form or other appropriate
form under the Securities Act), in each case for an offering to be made on a continuous or delayed
basis pursuant to Rule 415 under the Securities Act covering Notes and any Common Stock issuable
upon conversion thereof.

“Significant Subsidiary” means a Subsidiary of the Company that meets the definition of
“significant subsidiary” in Article 1, Rule 1-02(w) of Regulation S-X under the Exchange Act;
provided that, for purposes of Section 6.01(i) and Section 6.01(j), in the case of a Subsidiary of
the Company that meets the criteria of clause (3) of the definition thereof but not clause (1) or
(2) thereof, such Subsidiary shall not be deemed to be a Significant Subsidiary unless the
Subsidiary’s income from continuing operations before income taxes, extraordinary items and
cumulative effect of a change in accounting principle exclusive of amounts attributable to any
non-controlling interests for the last completed fiscal year prior to the date of such
determination exceeds $25,000,000.

“Specified Dollar Amount” means the maximum cash amount per $1,000 principal amount of Notes
being converted to be received upon conversion as specified in the Settlement Notice.

“Spin-Off” shall have the meaning specified in Section 13.04(c).

“Stock Price” shall have the meaning specified in Section 13.03(c).

“Subsidiary” means, with respect to any Person, any corporation, association, partnership or
other business entity of which more than 50% of the total voting power of shares of Capital Stock
or other interests (including partnership interests) entitled (without regard to the occurrence of
any contingency) to vote in the election of directors, managers, general partners or trustees
thereof is at the time owned or controlled, directly or indirectly, by (i) such Person; (ii) such
Person and one or more Subsidiaries of such Person; or (iii) one or more Subsidiaries of such
Person.

“Successor Company” shall have the meaning specified in Section 11.01(a).

“Trading Day” means a day on which (i) trading in the Common Stock (or other security for
which a closing sale price must be determined) generally occurs on The NASDAQ Global Select Market
or, if the Common Stock is not then listed on The NASDAQ Global Select Market, on the principal
other U.S. national or regional securities exchange on which the Common Stock (or such other
security) is then listed or, if the Common Stock (or such other security) is not then listed on a
U.S. national or regional securities exchange, on the principal other market on which the Common
Stock (or such other security) is then listed or admitted for trading, (ii) there is no Market
Disruption Event and (iii) a Last Reported Sale Price for the Common Stock (or closing price for
such other security) is available on such securities exchange or market; provided that if the
Common Stock (or such other security) is not so listed or traded, “Trading Day” means a Business
Day; and provided, further, that for purposes of determining amounts due upon any conversion for
which Cash Settlement or Combination Settlement is applicable only, “Trading Day” means a day on
which (x) there is no Market Disruption Event and (y) trading in the Common Stock generally occurs
on The NASDAQ Global Select Market or, if the Common Stock is not then listed on The NASDAQ Global
Select Market, on the principal other U.S. national or regional securities exchange on which the
Common Stock is then listed or, if the Common Stock is not then listed on a U.S. national or
regional securities exchange, on the principal other market on which the Common Stock is then
listed or admitted for trading, except that if the Common Stock is not so listed or admitted for
trading, “Trading Day” means a Business Day.

“Trading Price” of the Notes on any date of determination means the average of the secondary
market bid quotations obtained by the Bid Solicitation Agent for $5,000,000 principal amount of
Notes at approximately 3:30 p.m., New York City time, on such determination date from three
independent nationally recognized securities dealers the Company selects for this purpose; provided
that if three such bids cannot reasonably be obtained by the Bid Solicitation Agent but two such
bids are obtained, then the average of such two bids shall be used, and if only one such bid can
reasonably be obtained by the Bid Solicitation Agent, that one bid shall be used. If the Bid
Solicitation Agent cannot reasonably obtain at least one bid for $5,000,000 principal amount of
Notes from a nationally recognized securities dealer on any determination date, then the Trading
Price per $1,000 principal amount of Notes on such determination date shall be deemed to be less
than 98% of the product of the Last Reported Sale Price of the Common Stock and the applicable
Conversion Rate.

“transfer” shall have the meaning specified in Section 2.05(c).

“Trust Indenture Act” means the Trust Indenture Act of 1939, as amended, as it was in force at
the date of execution of this Indenture; provided, however, that in the event the Trust Indenture
Act of 1939 is amended after the date hereof, the term “Trust Indenture Act” shall mean, to the
extent required by such amendment, the Trust Indenture Act of 1939, as so amended.

“Trustee” means the Person named as the “Trustee” in the first paragraph of this Indenture
until a successor trustee shall have become such pursuant to the applicable provisions of this
Indenture, and thereafter, “Trustee” shall mean or include each Person who is then a Trustee
hereunder.

“unit of Reference Property” shall have the meaning specified in Section 13.07(a).

“Valuation Period” shall have the meaning specified in Section 13.04(c).

Section 1.02 References to Interest. Unless the context otherwise requires, any reference to
interest on, or in respect of, any Note in this Indenture shall be deemed to include Additional
Interest if, in such context, Additional Interest is, was or would be payable pursuant to any of
Section 4.06(d), Section 4.06(e) and Section 6.03. Unless the context otherwise requires, any
express mention of Additional Interest in any provision hereof shall not be construed as excluding
Additional Interest in those provisions hereof where such express mention is not made.

ARTICLE II

Issue, Description, Execution, Registration and Exchange of Notes

Section 2.01 Designation and Amount. The Notes shall be designated as the “3.00%
Convertible Senior Notes due 2020.” The aggregate principal amount of Notes that may be
authenticated and delivered under this Indenture is initially limited to $250,000,000 (as increased
by the aggregate principal amount of up to $37,500,000 of additional Notes purchased by the Initial
Purchasers pursuant to the exercise of their option to purchase additional Notes as set forth in
the Purchase Agreement), subject to Section 2.10 and except for Notes authenticated and delivered
upon registration or transfer of, or in exchange for, or in lieu of other Notes pursuant to
Section 2.05, Section 2.06, Section 2.07, Section 10.04, Section 13.02 and Section 14.03.

Section 2.02 Form of Notes. The Notes and the Trustee’s certificate of authentication to be
borne by such Notes shall be substantially in the respective forms set forth in Exhibit A, the
terms and provisions of which shall constitute, and are hereby expressly incorporated in and made a
part of this Indenture. To the extent applicable, the Company and the Trustee, by their execution
and delivery of this Indenture, expressly agree to such terms and provisions and to be bound
thereby.

Any Global Note may be endorsed with or have incorporated in the text thereof such legends or
recitals or changes not inconsistent with the provisions of this Indenture as may be required by
the Custodian or the Depositary, or as may be required to comply with any applicable law or any
regulation thereunder or with the rules and regulations of any securities exchange or automated
quotation system upon which the Notes may be listed or traded or designated for issuance or to
conform with any usage with respect thereto, or to indicate any special limitations or restrictions
to which any particular Notes are subject.

Any of the Notes may have such letters, numbers or other marks of identification and such
notations, legends or endorsements as the Officers executing the same may approve (execution
thereof to be conclusive evidence of such approval) and as are not inconsistent with the provisions
of this Indenture, or as may be required to comply with any law or with any rule or regulation made
pursuant thereto or with any rule or regulation of any securities exchange or automated quotation
system on which the Notes may be listed or designated for issuance, or to conform to usage or to
indicate any special limitations or restrictions to which any particular Notes are subject.

Each Global Note shall represent such principal amount of the outstanding Notes as shall be
specified therein and shall provide that it shall represent the aggregate principal amount of
outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of
outstanding Notes represented thereby may from time to time be increased or reduced to reflect
repurchases, cancellations, conversions, transfers or exchanges permitted hereby. Any endorsement
of a Global Note to reflect the amount of any increase or decrease in the amount of outstanding
Notes represented thereby shall be made by the Trustee or the Custodian, at the direction of the
Trustee, in such manner and upon written instructions given by the Holder of such Notes in
accordance with this Indenture. Payment of principal (including the Fundamental Change Repurchase
Price, if applicable) of, and accrued and unpaid interest on, a Global Note shall be made to the
Holder of such Note on the date of payment, unless a record date or other means of determining
Holders eligible to receive payment is provided for herein.

Section 2.03 Date and Denomination of Notes; Payments of Interest and Defaulted Amounts. (a)
The Notes shall be issuable in registered form without coupons in denominations of $1,000 principal
amount and integral multiples thereof. Each Note shall be dated the date of its authentication and
shall bear interest from the date specified on the face of the form of Note attached as Exhibit A
hereto. Accrued interest on the Notes shall be computed on the basis of a 360-day year composed of
twelve 30-day months and, for partial months, on the basis of actual days elapsed over a 30-day
month.

(b) The Person in whose name any Note (or its Predecessor Note) is registered on the Note
Register at the close of business on any Regular Record Date with respect to any Interest Payment
Date shall be entitled to receive the interest payable on such Interest Payment Date. Interest
shall be payable at the office or agency of the Company maintained by the Company for such
purposes, which shall initially be the Corporate Trust Office, or any other office so designated by
the Trustee. The Company shall pay, or cause the Paying Agent to pay, interest (i) on any Physical
Notes (A) to Holders holding Physical Notes having an aggregate principal amount of $5,000,000 or
less, by check mailed to the Holders of these Notes at their address as it appears in the Note
Register and (B) to Holders holding Physical Notes having an aggregate principal amount of more
than $5,000,000, either by check mailed to such Holders or, upon application by such a Holder to
the Note Registrar not later than the relevant Regular Record Date, by wire transfer in immediately
available funds to that Holder’s account within the United States, which application shall remain
in effect until the Holder notifies, in writing, the Note Registrar to the contrary or (ii) on any
Global Note by wire transfer of immediately available funds to the account of the Depositary or its
nominee.

(c) Any Defaulted Amounts shall forthwith cease to be payable to the Holder on the relevant
payment date but shall accrue interest per annum at the rate borne by the Notes, subject to the
enforceability thereof under applicable law, from, and including, such relevant payment date to,
but excluding, the date on which such Defaulted Amounts together with such interest thereon shall
be paid by the Company, at its election in each case, as provided in clause (i) or (ii) below:

(i) The Company may elect to make payment of any Defaulted Amounts to the Persons in whose
names the Notes (or their respective Predecessor Notes) are registered at the close of business on
a special record date for the payment of such Defaulted Amounts, which shall be fixed in the
following manner. The Company shall notify the Trustee in writing of the amount of the Defaulted
Amounts proposed to be paid on each Note and the date of the proposed payment (which shall be not
less than 25 days after the receipt by the Trustee of such notice, unless the Trustee shall consent
in writing to an earlier date), and at the same time the Company shall deposit with the Trustee an
amount of money equal to the aggregate amount to be paid in respect of such Defaulted Amounts or
shall make arrangements satisfactory to the Trustee for such deposit on or prior to the date of the
proposed payment, such money when deposited to be held in trust for the benefit of the Persons
entitled to such Defaulted Amounts as in this clause provided. Thereupon the Company shall fix a
special record date for the payment of such Defaulted Amounts which shall be not more than 15 days
and not less than 10 days prior to the date of the proposed payment, and not less than 10 days
after the receipt by the Trustee of the notice of the proposed payment. The Company shall promptly
notify the Trustee in writing of such special record date and the Trustee, in the name and at the
expense of the Company, shall cause notice of the proposed payment of such Defaulted Amounts and
the special record date therefor to be mailed, first-class postage prepaid, to each Holder at its
address as it appears in the Note Register, not less than 10 days prior to such special record
date. Notice of the proposed payment of such Defaulted Amounts and the special record date
therefor having been so mailed, such Defaulted Amounts shall be paid to the Persons in whose names
the Notes (or their respective Predecessor Notes) are registered at the close of business on such
special record date and shall no longer be payable pursuant to the following clause (ii) of this
Section 2.03(c).

(ii) The Company may make payment of any Defaulted Amounts in any other lawful manner not
inconsistent with the requirements of any securities exchange or automated quotation system on
which the Notes may be listed or designated for issuance, and upon such notice as may be required
by such exchange or automated quotation system, if, after written notice given by the Company to
the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed
practicable by the Trustee.

Section 2.04 Execution, Authentication and Delivery of Notes. The Notes shall be signed in
the name and on behalf of the Company by the manual or facsimile signature of its Chief Executive
Officer, President, Chief Financial Officer, Treasurer, Secretary or any of its Executive or Senior
Vice Presidents.

At any time and from time to time after the execution and delivery of this Indenture, the
Company may deliver Notes executed by the Company to the Trustee for authentication, together with
a Company Order for the authentication and delivery of such Notes, and the Trustee in accordance
with such Company Order shall authenticate and deliver such Notes, without any further action by
the Company hereunder.

Only such Notes as shall bear thereon a certificate of authentication substantially in the
form set forth on the form of Note attached as Exhibit A hereto, executed manually by an authorized
signatory of the Trustee (or an authenticating agent appointed by the Trustee as provided by
Section 16.10), shall be entitled to the benefits of this Indenture or be valid or obligatory for
any purpose. Such certificate by the Trustee (or such an authenticating agent) upon any Note
executed by the Company shall be conclusive evidence that the Note so authenticated has been duly
authenticated and delivered hereunder and that the Holder is entitled to the benefits of this
Indenture.

In case any Officer of the Company who shall have signed any of the Notes shall cease to be
such Officer before the Notes so signed shall have been authenticated and delivered by the Trustee,
or disposed of by the Company, such Notes nevertheless may be authenticated and delivered or
disposed of as though the Person who signed such Notes had not ceased to be such Officer of the
Company; and any Note may be signed on behalf of the Company by such Persons as, at the actual date
of the execution of such Note, shall be the Officers of the Company, although at the date of the
execution of this Indenture any such person was not such an Officer.

Section 2.05 Exchange and Registration of Transfer of Notes; Restrictions on Transfer;
Depositary. (a) The Company shall cause to be kept at the Corporate Trust Office a register (the
register maintained in such office or in any other office or agency of the Company designated
pursuant to Section 4.02, the “Note Register”) in which, subject to such reasonable regulations as
it may prescribe, the Company shall provide for the registration of Notes and of transfers of
Notes. Such register shall be in written form or in any form capable of being converted into
written form within a reasonable period of time. The Trustee is hereby initially appointed the
“Note Registrar” for the purpose of registering Notes and transfers of Notes as herein provided.
The Company may appoint one or more co-Note Registrars in accordance with Section 4.02.

Upon surrender for registration of transfer of any Note to the Note Registrar or any co-Note
Registrar, and satisfaction of the requirements for such transfer set forth in this Section 2.05,
the Company shall execute, and the Trustee shall authenticate and deliver, in the name of the
designated transferee or transferees, one or more new Notes of any authorized denominations and of
a like aggregate principal amount and bearing such restrictive legends as may be required by this
Indenture.

Notes may be exchanged for other Notes of any authorized denominations and of a like aggregate
principal amount, upon surrender of the Notes to be exchanged at any such office or agency
maintained by the Company pursuant to Section 4.02. Whenever any Notes are so surrendered for
exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Notes that
the Holder making the exchange is entitled to receive, bearing registration numbers not
contemporaneously outstanding.

All Notes presented or surrendered for registration of transfer or for exchange, repurchase or
conversion shall (if so required by the Company, the Trustee, the Note Registrar or any co-Note
Registrar) be duly endorsed, or be accompanied by a written instrument or instruments of transfer
in form satisfactory to the Company and duly executed, by the Holder thereof or its
attorney-in-fact duly authorized in writing.

No service charge shall be imposed by the Company, the Trustee, the Note Registrar, any
co-Note Registrar or any Paying Agent for any exchange or registration of transfer of Notes, but
the Company or the Trustee may require a Holder to pay a sum sufficient to cover any documentary,
stamp or similar issue or transfer tax or other similar governmental charge required by law or
permitted pursuant to Section 13.02(d) or Section 13.02(e).

None of the Company, the Trustee, the Note Registrar or any co-Note Registrar shall be
required to exchange or register a transfer of (i) any Notes surrendered for conversion or, if a
portion of any Note is surrendered for conversion, such portion thereof surrendered for conversion
or (ii) any Notes, or a portion of any Note, surrendered for repurchase (and not withdrawn) in
accordance with Article XIV.

All Notes issued upon any registration of transfer or exchange of Notes in accordance with
this Indenture shall be the valid and binding obligations of the Company, evidencing the same debt,
and entitled to the same benefits under this Indenture as the Notes surrendered upon such
registration of transfer or exchange.

(b) So long as the Notes are eligible for book-entry settlement with the Depositary, unless
otherwise required by law, subject to the fourth paragraph from the end of Section 2.05(c) all
Notes shall be represented by one or more Notes in global form (each, a “Global Note”) registered
in the name of the Depositary or a nominee of the Depositary. The transfer and exchange of
beneficial interests in a Global Note that does not involve the issuance of a Physical Note shall
be effected through the Depositary (but not the Trustee or the Custodian) in accordance with this
Indenture (including the restrictions on transfer set forth herein) and the procedures of the
Depositary therefor.

(c) Every Note that bears or is required under this Section 2.05(c) to bear the legend set
forth in this Section 2.05(c) (together with any Common Stock issued upon conversion of the Notes
and required to bear the legend set forth in Section 2.05(d), collectively, the “Restricted
Securities”) shall be subject to the restrictions on transfer set forth in this Section 2.05(c)
(including those contained in the legend set forth below), unless such restrictions on transfer
shall be eliminated or otherwise waived by written consent of the Company with written notice to
the Trustee as provided below. The Holder of each such Restricted Security, by such Holder’s
acceptance thereof, agrees to be bound by all such restrictions on transfer. As used in this
Section 2.05(c) and Section 2.05(d), the term “transfer” encompasses any sale, pledge, transfer or
other disposition whatsoever of any Restricted Security.

Until the Resale Restriction Termination Date, any certificate evidencing a Note (and all
securities issued in exchange therefor or substitution thereof, other than Common Stock, if any,
issued upon conversion thereof which shall bear the legend set forth in Section 2.05(d), if
applicable) shall bear a legend in substantially the following form (unless such Notes have been
transferred pursuant to a registration statement that has become or been declared effective under
the Securities Act and that continues to be effective at the time of such transfer, or sold
pursuant to the exemption from registration provided by Rule 144 or any similar provision then in
force under the Securities Act, or unless otherwise agreed by the Company in writing, with notice
thereof to the Trustee):

THE SALE OF THIS NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS
AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, PRIOR TO THE RESALE RESTRICTION TERMINATION DATE
(AS DEFINED BELOW), THIS NOTE AND ANY SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THIS NOTE
(AND ANY BENEFICIAL INTEREST HEREIN OR THEREIN) MAY NOT BE OFFERED, RESOLD OR OTHERWISE
TRANSFERRED, EXCEPT:

	 	(A)	 	TO THE COMPANY OR ANY OF ITS SUBSIDIARIES;

	 	(B)	 	PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE
SECURITIES ACT;

	 	(C)	 	TO A PERSON THAT YOU REASONABLY BELIEVE TO BE A QUALIFIED INSTITUTIONAL BUYER
IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT; OR

	 	(D)	 	UNDER ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT (INCLUDING, IF AVAILABLE, THE EXEMPTION PROVIDED BY RULE 144 UNDER THE
SECURITIES ACT).

THE “RESALE RESTRICTION TERMINATION DATE” MEANS THE DATE: (A) THAT IS AT LEAST ONE YEAR AFTER
THE LAST ORIGINAL ISSUANCE DATE OF THE NOTES (INCLUDING ANY ISSUANCE OF ANY ADDITIONAL NOTES
PURSUANT TO THE EXERCISE OF THE INITIAL PURCHASERS’ OPTION TO PURCHASE ADDITIONAL NOTES); AND
(B) ON WHICH THE COMPANY HAS INSTRUCTED THE TRUSTEE THAT THIS LEGEND WILL NO LONGER APPLY IN
ACCORDANCE WITH THE PROCEDURES DESCRIBED IN THE INDENTURE.

PRIOR TO ANY TRANSFER PURSUANT TO THE FOREGOING CLAUSES (C) AND (D), THE COMPANY AND THE
TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH CERTIFICATIONS, LEGAL OPINIONS (WITH
RESPECT TO CLAUSE (D) ONLY) OR OTHER INFORMATION AS THEY MAY REASONABLY REQUIRE AND RELY UPON TO
CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT
SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

DURING THE PERIOD ENDING ONE YEAR AFTER THE LAST DATE OF ORIGINAL ISSUANCE OF THE NOTES, NO
“AFFILIATE” (AS DEFINED IN RULE 144) WILL BE PERMITTED TO RESELL ANY OF THE NOTES THAT CONSTITUTE
“RESTRICTED SECURITIES” UNDER RULE 144 THAT HAVE BEEN REACQUIRED BY ANY OF THEM.

No transfer of any Note prior to the Resale Restriction Termination Date will be registered by
the Note Registrar unless the applicable box on the Form of Assignment and Transfer has been
checked.

Any Note (or security issued in exchange or substitution therefor) as to which such
restrictions on transfer shall have expired in accordance with their terms may, upon surrender of
such Note for exchange to the Note Registrar in accordance with the provisions of this
Section 2.05, be exchanged for a new Note or Notes, of like tenor and aggregate principal amount,
which shall not bear the restrictive legend required by this Section 2.05(c) and shall not be
assigned a restricted CUSIP number. The Company shall be entitled to instruct the Custodian in
writing to so surrender any Global Note as to which such restrictions on transfer shall have
expired in accordance with their terms for exchange, and, upon such instruction, the Custodian
shall so surrender such Global Note for exchange; and any new Global Note so exchanged therefor
shall not bear the restrictive legend specified in this Section 2.05(c) and shall not be assigned a
restricted CUSIP number. The Company shall promptly notify the Trustee in writing upon the
occurrence of the Resale Restriction Termination Date. Upon such notice, the legend set forth
above shall be deemed removed from the Note, with no further action required by the Company, the
Trustee, or, if applicable, the Depositary. The Company shall promptly notify the Trustee and the
Holders in writing after a registration statement, if any, with respect to the Notes or any Common
Stock issued upon conversion of the Notes has been declared effective under the Securities Act.

Notwithstanding any other provisions of this Indenture (other than the provisions set forth in
this Section 2.05(c)), a Global Note may not be transferred as a whole or in part except (i) by the
Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or
another nominee of the Depositary or by the Depositary or any such nominee to a successor
Depositary or a nominee of such successor Depositary and (ii) for transfers of portions of a Global
Note in certificated form made upon request of a member of, or a participant in, the Depositary
(for itself or on behalf of a beneficial owner) by written notice given to the Trustee by or on
behalf of the Depositary in accordance with customary procedures of the Depositary and in
compliance with this Section 2.05(c).

The Depositary shall be a clearing agency registered under the Exchange Act. The Company
initially appoints DTC to act as Depositary with respect to each Global Note. Initially, each
Global Note shall be issued to the Depositary, registered in the name of Cede & Co., as the nominee
of the Depositary, and deposited with the Trustee as custodian for Cede & Co.

If (i) the Depositary notifies the Company at any time that the Depositary is unwilling or
unable to continue as depositary for the Global Notes and a successor depositary is not appointed
within 90 days, (ii) the Depositary ceases to be registered as a clearing agency under the Exchange
Act and a successor depositary is not appointed within 90 days, (iii) an Event of Default with
respect to the Notes has occurred and is continuing and a beneficial owner of any Note requests
that its beneficial interest therein be issued as a Physical Note or (iv) the Company and a
beneficial owner of any Note so agree, the Company shall execute, and the Trustee, upon receipt of
an Officer’s Certificate and a Company Order for the authentication and delivery of Notes, shall
authenticate and deliver (x) in the case of clause (iii) or (iv), a Physical Note to such
beneficial owner in a principal amount equal to the principal amount of such Note corresponding
such beneficial owner’s beneficial interest and (y) in the case of clause (i) or (ii), Physical
Notes to each beneficial owner of the related Global Notes (or a portion thereof) in an aggregate
principal amount equal to the aggregate principal amount of such Global Notes in exchange for such
Global Notes, and upon delivery of the Global Notes to the Trustee such Global Notes shall be
canceled.

Physical Notes issued in exchange for all or a part of the Global Note pursuant to this
Section 2.05(c) shall be registered in such names and in such authorized denominations as the
Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall
instruct the Trustee. Upon execution and authentication, the Trustee shall deliver such Physical
Notes to the Persons in whose names such Physical Notes are so registered.

At such time as all interests in a Global Note have been converted, canceled, repurchased or
transferred, such Global Note shall be, upon receipt thereof, canceled by the Trustee in accordance
with its customary procedures. At any time prior to such cancellation, if any interest in a Global
Note is exchanged for Physical Notes, converted, canceled, repurchased or transferred to a
transferee who receives Physical Notes therefor or any Physical Note is exchanged or transferred
for part of such Global Note, the principal amount of such Global Note shall, in accordance with
the Trustee’s customary procedures, be appropriately reduced or increased, as the case may be, and
an endorsement shall be made on the Schedule of Exchanges of such Global Note, by the Trustee or
the Custodian, at the direction of the Trustee, to reflect such reduction or increase.

The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance
with any restrictions on transfer imposed under this Indenture or under applicable law with respect
to any transfer of any interest in any Note (including any transfers between or among Depositary
participants or beneficial owners of interests in any Global Note) other than to require delivery
of such certificates and other documentation or evidence as are expressly required by, and to do so
if and when expressly required by the terms of, this Indenture, and to examine the same to
determine substantial compliance as to form with the express requirements hereof.

Neither the Trustee nor any agent of the Trustee shall have any responsibility or liability
for any actions taken or not taken by the Depositary.

Neither the Company, the Trustee nor any agent of the Company or the Trustee shall have any
responsibility or liability for any aspect of the records relating to or payments made on account
of beneficial ownership interests of a Global Note or maintaining, supervising or reviewing any
records relating to such beneficial ownership interests.

The Trustee shall have the right to decline to authenticate and deliver any Notes under this
Section if the Trustee, being advised by counsel, determines that such action may not lawfully be
taken or if the Trustee in good faith shall determine that such action would expose the Trustee to
personal liability to existing Holders.

(d) Until the Resale Restriction Termination Date, any stock certificate representing Common
Stock issued upon conversion of such Note shall bear a legend in substantially the following form
(unless the Note or such Common Stock has been transferred pursuant to a registration statement
that has become or been declared effective under the Securities Act and that continues to be
effective at the time of such transfer, or pursuant to the exemption from registration provided by
Rule 144 or any similar provision then in force under the Securities Act, or such Common Stock has
been issued upon conversion of Notes that have been transferred pursuant to a registration
statement that has become or been declared effective under the Securities Act and that continues to
be effective at the time of such transfer, or pursuant to the exemption from registration provided
by Rule 144 or any similar provision then in force under the Securities Act, or unless otherwise
agreed by the Company with written notice thereof to the Trustee and any transfer agent for the
Common Stock):

THE SALE OF THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS
AMENDED (THE “SECURITIES ACT”), AND ACCORDINGLY, PRIOR TO THE RESALE RESTRICTION TERMINATION
DATE (AS DEFINED BELOW), THIS SECURITY (AND ANY BENEFICIAL INTEREST HEREIN) MAY NOT BE
OFFERED, RESOLD, OR OTHERWISE TRANSFERRED, EXCEPT:

	 	(A)	 	TO THE COMPANY OR ANY OF THEIR RESPECTIVE SUBSIDIARIES;

	 	(B)	 	PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE
SECURITIES ACT; OR

	 	(C)	 	UNDER ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT (INCLUDING, IF AVAILABLE, THE EXEMPTION PROVIDED BY RULE 144 UNDER THE
SECURITIES ACT).

THE “RESALE RESTRICTION TERMINATION DATE” MEANS THE DATE: (A) THAT IS AT LEAST ONE YEAR
AFTER THE LAST ORIGINAL ISSUANCE DATE OF THE COMPANY’S 3.00% CONVERTIBLE SENIOR NOTES DUE
2020 (INCLUDING THE LAST DATE OF ISSUANCE OF ANY ADDITIONAL NOTES PURSUANT TO THE EXERCISE
OF THE INITIAL PURCHASERS’ OPTION TO PURCHASE ADDITIONAL NOTES); AND (B) ON WHICH THE
COMPANY HAS INSTRUCTED THE TRUSTEE THAT THIS LEGEND WILL NO LONGER APPLY, IN ACCORDANCE WITH
THE PROCEDURES DESCRIBED IN THE INDENTURE FOR THE NOTES.

PRIOR TO ANY TRANSFER PURSUANT TO THE FOREGOING CLAUSE (C), THE COMPANY AND THE TRANSFER
AGENT RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH CERTIFICATIONS, LEGAL OPINIONS OR
OTHER INFORMATION AS THEY MAY REASONABLY REQUIRE AND RELY UPON TO CONFIRM THAT SUCH TRANSFER
IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE
REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

DURING THE PERIOD ENDING ONE YEAR AFTER THE LAST DATE OF ORIGINAL ISSUANCE OF THE NOTES, NO
“AFFILIATE” (AS DEFINED IN RULE 144) WILL BE PERMITTED TO RESELL ANY SHARES OF COMMON STOCK
ISSUED UPON CONVERSION OF THE NOTES THAT CONSTITUTE “RESTRICTED SECURITIES” UNDER RULE 144
THAT HAVE BEEN REACQUIRED BY ANY OF THEM.

Any such Common Stock as to which such restrictions on transfer shall have expired in
accordance with their terms may, upon surrender of the certificates representing such shares of
Common Stock for exchange in accordance with the procedures of the transfer agent for the Common
Stock, be exchanged for a new certificate or certificates for a like aggregate number of shares of
Common Stock, which shall not bear the restrictive legend required by this Section 2.05(d).

(e) The Company shall not, and shall not permit any of its controlled “affiliates” (as defined
in Rule 144) to, resell any of the Notes or any shares of Common Stock issued upon conversion of
any Note that constitute “restricted securities” under Rule 144 that have been reacquired by any of
them, unless such Note is registered under the Securities Act or resold pursuant to an exemption
from the registration requirements of the Securities Act in a transaction that results in such Note
no longer being “restricted securities” under Rule 144.

Section 2.06 Mutilated, Destroyed, Lost or Stolen Notes. In case any Note shall become
mutilated or be destroyed, lost or stolen, the Company in its discretion may execute, and upon its
written request in a Company Order, the Trustee or an authenticating agent appointed by the Trustee
shall authenticate and deliver a new Note, bearing a registration number not contemporaneously
outstanding, in exchange and substitution for the mutilated Note, or in lieu of and in substitution
for the Note so destroyed, lost or stolen. In every case the applicant for a substituted Note
shall furnish to the Company, to the Trustee and, if applicable, to such authenticating agent such
security or indemnity as may be required by them to save each of them harmless from any loss,
liability, cost or expense caused by or connected with such substitution, and, in every case of
destruction, loss or theft, the applicant shall also furnish to the Company, to the Trustee and, if
applicable, to such authenticating agent evidence to their satisfaction of the destruction, loss or
theft of such Note and of the ownership thereof.

The Trustee or such authenticating agent may authenticate any such substituted Note and
deliver the same upon the receipt of such security or indemnity as the Trustee, the Company and, if
applicable, such authenticating agent may require. No service charge shall be imposed by the
Company, the Trustee, the Note Registrar or any co-Note Registrar for any exchange or registration
of transfer of any substitute Note, but, upon the issuance of any substitute Note, the Company or
the Trustee may require the payment by the Holder of a sum sufficient to cover any tax, assessment
or other governmental charge that may be imposed in relation thereto and any other expenses
connected therewith. In case any Note that has matured or is about to mature or has been
surrendered for required repurchase or is about to be converted in accordance with Article XIII
shall become mutilated or be destroyed, lost or stolen, the Company may, in its sole discretion,
instead of issuing a substitute Note, pay or authorize the payment of or convert or authorize the
conversion of the same (without surrender thereof except in the case of a mutilated Note), as the
case may be, if the applicant for such payment or conversion shall furnish to the Company, to the
Trustee and, if applicable, to such authenticating agent such security or indemnity as may be
required by them to save each of them harmless for any loss, liability, cost or expense caused by
or connected with such substitution, and, in every case of destruction, loss or theft, evidence
satisfactory to the Company, the Trustee and, if applicable, any Paying Agent or Conversion Agent
of the destruction, loss or theft of such Note and of the ownership thereof.

Every substitute Note issued pursuant to the provisions of this Section 2.06 by virtue of the
fact that any Note is destroyed, lost or stolen shall constitute an additional contractual
obligation of the Company, whether or not the destroyed, lost or stolen Note shall be found at any
time, and shall be entitled to all the benefits of (but shall be subject to all the limitations set
forth in) this Indenture equally and proportionately with any and all other Notes duly issued
hereunder. To the extent permitted by law, all Notes shall be held and owned upon the express
condition that the foregoing provisions are exclusive with respect to the replacement or payment or
conversion or repurchase of mutilated, destroyed, lost or stolen Notes and shall preclude any and
all other rights or remedies notwithstanding any law or statute existing or hereafter enacted to
the contrary with respect to the replacement or payment or conversion of negotiable instruments or
other securities without their surrender.

Section 2.07 Temporary Notes. Pending the preparation of Physical Notes, the Company may
execute and the Trustee or an authenticating agent appointed by the Trustee shall, upon written
request of the Company in a Company Order, authenticate and deliver temporary Notes (printed or
lithographed). Temporary Notes shall be issuable in any authorized denomination, and substantially
in the form of the Physical Notes but with such omissions, insertions and variations as may be
appropriate for temporary Notes, all as may be determined by the Company. Every such temporary
Note shall be executed by the Company and authenticated by the Trustee or such authenticating agent
upon the same conditions and in substantially the same manner, and with the same effect, as the
Physical Notes. Without unreasonable delay, the Company shall execute and deliver to the Trustee
or such authenticating agent Physical Notes (other than any Global Note) and thereupon any or all
temporary Notes (other than any Global Note) may be surrendered in exchange therefor, at each
office or agency maintained by the Company pursuant to Section 4.02 and the Trustee or such
authenticating agent shall authenticate and deliver in exchange for such temporary Notes an equal
aggregate principal amount of Physical Notes. Such exchange shall be made by the Company at its
own expense and without any charge therefor. Until so exchanged, the temporary Notes shall in all
respects be entitled to the same benefits and subject to the same limitations under this Indenture
as Physical Notes authenticated and delivered hereunder.

Section 2.08 Cancellation of Notes Paid, Converted, Etc. The Company shall cause all Notes
surrendered for the purpose of payment, repurchase, registration of transfer or exchange or
conversion, if surrendered to the Company or the Company’s agents, Subsidiaries or Affiliates, to
be surrendered to the Trustee for cancellation. All Notes delivered to the Trustee shall be
canceled promptly by it, and no Notes shall be authenticated in exchange thereof except as
expressly permitted by any of the provisions of this Indenture. The Trustee shall dispose of
canceled Notes in accordance with its customary procedures and, after such disposition, shall
deliver a certificate of such disposition to the Company upon the written request of the Company.
If the Company shall acquire any of the Notes, such acquisition shall not operate as a redemption,
repurchase or satisfaction of the indebtedness represented by such Notes unless and until the same
are delivered to the Trustee for cancellation.

Section 2.09 CUSIP Numbers. The Company in issuing the Notes may use “CUSIP” numbers (if then
generally in use), and, if so, the Trustee shall use “CUSIP” numbers in all notices issued to
Holders as a convenience to such Holders; provided that any such notice may state that no
representation is made as to the correctness of such numbers either as printed on the Notes or on
such notice and that reliance may be placed only on the other identification numbers printed on the
Notes, and any such redemption shall not be affected by any defect in or omission of such numbers.
The Company shall promptly notify the Trustee in writing of any change in the “CUSIP” numbers.

Section 2.10 Additional Notes; Repurchases. The Company may, without the consent of the
Holders and notwithstanding Section 2.01, reopen this Indenture and issue additional Notes
hereunder with the same terms and with the same CUSIP number as the Notes initially issued
hereunder in an unlimited aggregate principal amount; provided that if any such additional Notes
are not fungible with the Notes initially issued hereunder for U.S. federal income tax purposes,
such additional Notes shall have a separate CUSIP number. Prior to the issuance of any such
additional Notes, the Company shall deliver to the Trustee a Company Order, an Officer’s
Certificate and an Opinion of Counsel, such Officer’s Certificate and Opinion of Counsel to cover
such matters required by Section 16.05, and such Opinion of Counsel to include a customary legal
opinion as to the enforceability under New York law of such additional Notes, which opinion may
contain customary exceptions and qualifications. In addition, the Company may, to the extent
permitted by law, and directly or indirectly (regardless of whether such Notes are surrendered to
the Company), repurchase Notes in the open market or otherwise, whether by the Company or its
Subsidiaries or through a private or public tender or exchange offer or through counterparties to
private agreements, including by cash-settled swaps or other derivatives. The Company shall cause
any Notes so repurchased (other than Notes repurchased pursuant to cash-settled swaps or other
derivatives) to be surrendered to the Trustee for cancellation in accordance with Section 2.08.

ARTICLE III

Satisfaction and Discharge

Section 3.01 Satisfaction and Discharge. This Indenture shall, upon request of the
Company contained in an Officer’s Certificate cease to be of further effect, and the Trustee, at
the expense and written request of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when (a) (i) all Notes theretofore authenticated and
delivered (other than (x) Notes which have been destroyed, lost or stolen and which have been
replaced or paid as provided in Section 2.06 and (y) Notes for whose payment money has theretofore
been deposited in trust or segregated and held in trust by the Company and thereafter repaid to the
Company or discharged from such trust, as provided in Section 4.04(d)) have been delivered to the
Trustee for cancellation; or (ii) the Company has deposited with the Trustee or delivered to
Holders, as applicable, after the Notes have become due and payable, whether at the Maturity Date,
any Fundamental Change Repurchase Date, upon conversion or otherwise, cash, shares of Common Stock
or a combination thereof (at the Company’s election), if any (solely to satisfy the Company’s
Conversion Obligation, if applicable), sufficient to pay all of the outstanding Notes and all other
sums due and payable under this Indenture by the Company; and (b) the Company has delivered to the
Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions
precedent herein provided for relating to the satisfaction and discharge of this Indenture have
been complied with. Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 7.06 shall survive.

ARTICLE IV

Particular Covenants of the Company

Section 4.01 Payment of Principal and Interest. The Company covenants and agrees that it
will cause to be paid the principal (including the Fundamental Change Repurchase Price, if
applicable) of, and accrued and unpaid interest on, each of the Notes at the places, at the
respective times and in the manner provided herein and in the Notes.

Notwithstanding anything to the contrary contained in this Indenture, the Company may, to the
extent it is required to do so by law, deduct or withhold income or other similar taxes imposed by
the United States of America from principal, premium or interest (including any Additional
Interest) payments hereunder.

Section 4.02 Maintenance of Office or Agency. An office will be maintained on behalf of the
Company in Minneapolis, Minnesota, or any other office located in the United States of America so
designated by the Trustee, where the Notes may be surrendered for registration of transfer or
exchange or for presentation for payment or repurchase (“Paying Agent”) or for conversion
(“Conversion Agent”) and where notices and demands to or upon the Company in respect of the Notes
and this Indenture may be served. The Company will give prompt written notice to the Trustee of
the location, and any change in the location, of such office or agency. If at any time the Company
shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with
the address thereof, such presentations, surrenders, notices and demands may be made or served at
the Corporate Trust Office or the office or agency of the Trustee in Minneapolis, Minnesota, or any
other office located in the United States of America so designated by the Trustee as a place where
Notes may be presented for payment or for registration of transfer.

The Company may also from time to time designate as co-Note Registrars one or more other
offices or agencies located in the United States of America where the Notes may be presented or
surrendered for any or all such purposes and may from time to time rescind such designations;
provided that no such designation or rescission shall in any manner relieve the Trustee of its
obligation to maintain an office in Minneapolis, Minnesota, or any other office located in the
United States of America so designated by the Trustee as a place for such purposes. The Company
will give prompt written notice to the Trustee of any such designation or rescission and of any
change in the location of any such other office or agency. The terms “Paying Agent” and
“Conversion Agent” include any such additional or other offices or agencies, as applicable.

The Company hereby initially designates the Trustee as the Paying Agent, Note Registrar,
Custodian and Conversion Agent and the Corporate Trust Office and the office of the Trustee in
Minneapolis, Minnesota, or any other office located in the United States of America so designated
by the Trustee, each shall be considered as one such office or agency of the Company for each of
the aforesaid purposes.

Section 4.03 Appointments to Fill Vacancies in Trustee’s Office. The Company, whenever
necessary to avoid or fill a vacancy in the office of Trustee, will appoint, in the manner provided
in Section 7.08, a Trustee, so that there shall at all times be a Trustee hereunder.

Section 4.04 Provisions as to Paying Agent. (a) If the Company shall appoint a Paying Agent
other than the Trustee, the Company will cause such Paying Agent to execute and deliver to the
Trustee an instrument in which such agent shall agree with the Trustee, subject to the provisions
of this Section 4.04:

(i) that it will hold all sums held by it as such agent for the payment of the principal
(including the Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid
interest on, the Notes in trust for the benefit of the Holders of the Notes;

(ii) that it will give the Trustee prompt written notice of any failure by the Company to make
any payment of the principal (including the Fundamental Change Repurchase Price, if applicable) of,
and accrued and unpaid interest on, the Notes when the same shall be due and payable; and

(iii) that at any time during the continuance of an Event of Default, upon request of the
Trustee, it will forthwith pay to the Trustee all sums so held in trust.

The Company shall, on or before each due date of the principal (including the Fundamental
Change Repurchase Price, if applicable) of, or accrued and unpaid interest on, the Notes, deposit
with the Paying Agent a sum sufficient to pay such principal (including the Fundamental Change
Repurchase Price, if applicable) or accrued and unpaid interest, and (unless such Paying Agent is
the Trustee) the Company will promptly notify the Trustee in writing of any failure to take such
action; provided that if such deposit is made on the due date, such deposit must be received by the
Paying Agent by 11:00 a.m., New York City time, on such date.

(b) If the Company shall act as its own Paying Agent, it will, on or before each due date of
the principal (including the Fundamental Change Repurchase Price, if applicable) of, and accrued
and unpaid interest on, the Notes, set aside, segregate and hold in trust for the benefit of the
Holders of the Notes a sum sufficient to pay such principal (including the Fundamental Change
Repurchase Price, if applicable) and accrued and unpaid interest so becoming due and will promptly
notify the Trustee in writing of any failure to take such action and of any failure by the Company
to make any payment of the principal (including the Fundamental Change Repurchase Price, if
applicable) of, or accrued and unpaid interest on, the Notes when the same shall become due and
payable.

(c) Anything in this Section 4.04 to the contrary notwithstanding, the Company may, at any
time, for the purpose of obtaining a satisfaction and discharge of this Indenture, or for any other
reason, pay, cause to be paid or deliver to the Trustee all sums or amounts held in trust by the
Company or any Paying Agent hereunder as required by this Section 4.04, such sums or amounts to be
held by the Trustee upon the trusts herein contained and upon such payment or delivery by the
Company or any Paying Agent to the Trustee, the Company or such Paying Agent shall be released from
all further liability but only with respect to such sums or amounts.

(d) Any money and shares of Common Stock deposited with the Trustee or any Paying Agent, or
then held by the Company, in trust for the payment of the principal (including the Fundamental
Change Repurchase Price, if applicable) of, and accrued and unpaid interest on and the
consideration due upon conversion of, any Note and remaining unclaimed for two years after such
principal (including the Fundamental Change Repurchase Price, if applicable), interest or
consideration due upon conversion has become due and payable shall be paid to the Company on
request of the Company contained in an Officer’s Certificate, or (if then held by the Company)
shall be discharged from such trust; and the Holder of such Note shall thereafter, as an unsecured
general creditor, look only to the Company for payment thereof, and all liability of the Trustee or
such Paying Agent with respect to such trust money and shares of Common Stock, and all liability of
the Company as trustee thereof, shall thereupon cease.

Section 4.05 Existence. Subject to Article XI, the Company shall do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate existence.

Section 4.06 Rule 144A Information Requirement and Annual Reports. (a) At any time the
Company is not subject to Sections 13 or 15(d) of the Exchange Act, the Company shall, so long as
any of the Notes (or any shares of Common Stock issuable upon conversion thereof) shall, at such
time, constitute “restricted securities” within the meaning of Rule 144(a)(3) under the Securities
Act, upon written request, provide to the Trustee, any Holder, beneficial owner or prospective
purchaser of such Notes or shares of Common Stock, the information required to be delivered
pursuant to Rule 144A(d)(4) under the Securities Act to facilitate the resale of such Notes
pursuant to Rule 144A under the Securities Act.

(b) The Company shall file with the Trustee within 15 days after the same are required to be
filed with the Commission (taking into account any applicable grace periods provided thereunder),
copies of any documents or reports that the Company is required to file with the Commission
pursuant to Section 13 or 15(d) of the Exchange Act (excluding any such information, documents or
reports, or portions thereof, subject to confidential treatment and any correspondence with the
Commission). Any such document or report that the Company files with the Commission via the
Commission’s EDGAR system shall be deemed to be filed with the Trustee for purposes of this
Section 4.06(b) at the time such documents are filed via the EDGAR system, it being understood that
the Trustee shall not be responsible for determining whether such filings have been made.

(c) Delivery of the reports and documents described in subsection (b) above to the Trustee is
for informational purposes only, and the Trustee’s receipt of such shall not constitute
constructive notice of any information contained therein or determinable from information contained
therein, including the Company’s compliance with any of its covenants hereunder (as to which the
Trustee is entitled to conclusively rely on an Officer’s Certificate).

(d) If, at any time during the six-month period beginning on, and including, the date that is
six months after the last date of original issuance of the Notes offered pursuant to the applicable
Offering Memorandum, the Company fails to timely file any document or report that it is required to
file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, as applicable (after
giving effect to all applicable grace periods thereunder and other than reports on Form 8-K), or
such Notes are not otherwise freely tradable by Holders other than the Company’s Affiliates (as a
result of restrictions pursuant to U.S. securities law or the terms of this Indenture or such
Notes), the Company shall pay Additional Interest on such Notes. Such Additional Interest shall
accrue on such Notes at the rate of 0.50% per annum of the principal amount of such Notes
outstanding for each day during such period for which the Company’s failure to file has occurred
and is continuing. As used in this Section 4.06(d), documents or reports that the Company is
required to “file” with the Commission pursuant to Section 13 or 15(d) of the Exchange Act do not
include documents or reports that the Company furnishes to the Commission pursuant to Section 13 or
15(d) of the Exchange Act.

(e) If, and for so long as, the restrictive legend on the Notes offered pursuant to the
applicable Offering Memorandum specified in Section 2.05(c) has not been removed (or deemed removed
pursuant to this Indenture), such Notes are assigned a restricted CUSIP number or such Notes are
not otherwise freely tradable by Holders other than the Company’s Affiliates (without restrictions
pursuant to U.S. securities law or the terms of this Indenture or the Notes) as of the 380th day
after the last date of original issuance of such Notes, the Company shall pay Additional Interest
on such Notes at a rate equal to 0.50% per annum of the principal amount of such Notes outstanding
until the restrictive legend on such Notes has been removed in accordance with Section 2.05(c),
such Notes are assigned an unrestricted CUSIP number and such Notes are freely tradable by Holders
other than the Company’s Affiliates (without restrictions pursuant to U.S. securities law or the
terms of this Indenture or such Notes).

(f) Notwithstanding the foregoing, no Additional Interest will accrue or be payable under
Section 4.06(e) on any date on which (i) (w) the Company has filed a Shelf Registration Statement
for the resale of the Notes and any shares of Common Stock issuable upon conversion of such Notes,
(x) such Shelf Registration Statement is effective and usable by Holders identified therein as
selling security Holders for the resale of such Notes and any shares of Common Stock issued upon
exchange of such Notes, (y) the Holders may register the resale of such Notes held by them under
such Shelf Registration Statement on terms customary for the resale of convertible or exchangeable
securities offered in reliance on Rule 144A, and (z) such Notes and/or shares of Common Stock sold
pursuant to such Shelf Registration Statement become freely tradable as a result of such sale; or
(ii) after the Company has complied with the requirements set forth in clause (i) above for a
period of two years, no further Additional Interest shall be payable under Section 4.06(e).

(g) Additional Interest will be payable in arrears on each Interest Payment Date following
accrual in the same manner as regular interest on the Notes.

(h) The Additional Interest that is payable in accordance with Section 4.06(d) or
Section 4.06(e) shall be in addition to, and not in lieu of, any Additional Interest that may be
payable as a result of the Company’s election pursuant to Section 6.03. Notwithstanding the
foregoing, in no event shall Additional Interest accrue under the terms of this Indenture
(aggregating any Additional Interest payable pursuant to Section 4.06(d) or Section 4.06(e) with
any Additional Interest payable pursuant to Section 6.03) at a rate per year in excess of 0.50%,
regardless of the number of events or circumstances giving rise to the requirement to pay such
Additional Interest.

(i) If Additional Interest is payable by the Company pursuant to Section 4.06(d) or
Section 4.06(e), the Company shall deliver to the Trustee an Officer’s Certificate to that effect
stating (i) the amount of such Additional Interest that is payable and (ii) the date on which such
Additional Interest is payable. Unless and until a Responsible Officer of the Trustee receives at
the Corporate Trust Office such a certificate, the Trustee may assume without inquiry that no such
Additional Interest is payable. If the Company has paid Additional Interest directly to the
Persons entitled to it, the Company shall deliver to the Trustee an Officer’s Certificate setting
forth the particulars of such payment.

(j) For the avoidance of doubt, in the event additional Notes are issued under this Indenture
pursuant to Section 2.10, for purposes of determining whether Additional Interest shall be payable
pursuant to Section 4.06(d) or Section 4.06(e) with respect to any Notes issued under this
Indenture, all Notes that do not have the same CUSIP number or were not offered by the same
Offering Memorandum shall be considered separately.

Section 4.07 Stay, Extension and Usury Laws. The Company covenants (to the extent that it may
lawfully do so) that it shall not at any time insist upon, plead, or in any manner whatsoever claim
or take the benefit or advantage of, any stay, extension or usury law or other law that would
prohibit or forgive the Company from paying all or any portion of the principal of or interest on
the Notes as contemplated herein, wherever enacted, now or at any time hereafter in force, or that
may affect the covenants or the performance of this Indenture; and the Company (to the extent it
may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants
that it will not, by resort to any such law, hinder, delay or impede the execution of any power
herein granted to the Trustee, but will suffer and permit the execution of every such power as
though no such law had been enacted.

Section 4.08 Compliance Certificate; Statements as to Defaults. The Company shall deliver to
the Trustee within 120 days after the end of each fiscal year of the Company (beginning with the
fiscal year ending on December 31, 2013) an Officer’s Certificate stating whether or not the
signers thereof have knowledge of any failure by the Company to comply with all conditions and
covenants then required to be performed under this Indenture and, if so, specifying each such
failure and the nature thereof.

In addition, the Company shall deliver to the Trustee, within 30 days after the Company
becomes aware of the occurrence of any Event of Default or Default, an Officer’s Certificate
setting forth the details of such Event of Default or Default, its status and the action that the
Company is taking or proposing to take in respect thereof.

ARTICLE V

Lists of Holders and Reports by the Company and the Trustee

Section 5.01 Lists of Holders. For so long as there are any Physical Notes, the Company
covenants and agrees that it will furnish or cause to be furnished to the Trustee, semi-annually,
not more than 15 days after each January 15 and July 15 in each year beginning with January 15,
2014, and at such other times as the Trustee may request in writing, within 30 days after receipt
by the Company of any such request (or such lesser time as the Trustee may reasonably request in
order to enable it to timely provide any notice to be provided by it hereunder), a list in such
form as the Trustee may reasonably require of the names and addresses of the Holders as of a date
not more than 15 days (or such other date as the Trustee may reasonably request in order to so
provide any such notices) prior to the time such information is furnished, except that no such list
need be furnished so long as the Trustee is acting as Note Registrar.

Section 5.02 Preservation and Disclosure of Lists. The Trustee shall preserve, in as current
a form as is reasonably practicable, all information as to the names and addresses of the Holders
contained in the most recent list furnished to it as provided in Section 5.01 or maintained by the
Trustee in its capacity as Note Registrar, if so acting. The Trustee may destroy any list
furnished to it as provided in Section 5.01 upon receipt of a new list so furnished.

ARTICLE VI

Defaults and Remedies

Section 6.01 Events of Default. The following events shall be “Events of Default” with
respect to the Notes:

(a) default, by the Company, in any payment of interest on any Note when due and payable, and
the default continues for a period of 30 days;

(b) default, by the Company, in the payment of principal (including the Fundamental Change
Repurchase Price, if applicable) of any Note when due and payable on the Maturity Date, upon any
required repurchase, upon declaration of acceleration or otherwise;

(c) failure by the Company to comply with its obligation to convert the Notes in accordance
with this Indenture upon exercise of a Holder’s conversion right, and such failure continues for a
period of five Business Days;

(d) failure by the Company to issue a Fundamental Change Company Notice in accordance with
Section 14.01(c) or notice of a specified corporate event in accordance with Section 13.01(b)(ii)
or Section 13.01(b)(iii), in each case when due;

(e) failure by the Company to comply with its obligations under Article XI;

(f) failure by the Company for 60 days after written notice from the Trustee or the Holders of
at least 25% in principal amount of the Notes then outstanding has been received by the Company to
comply with any of its other agreements contained in the Notes or this Indenture;

(g) default (x) by the Company or any Significant Subsidiary of the Company in the payment
when due, after the expiration of any applicable grace period, of principal of, or premium, if any,
or interest on, any indebtedness for money borrowed in the aggregate principal amount then
outstanding of $25,000,000 or more, or (y) resulting in the acceleration of the Company’s or the
Company’s Subsidiaries’ indebtedness for money borrowed having an aggregate principal amount of
$25,000,000 or more so that it becomes due and payable before the date on which it would otherwise
have become due and payable, if such default is not cured or waived, or such acceleration is not
rescinded, as the case may be, within 30 days after written notice to the Company from the Trustee
or to the Company and the Trustee from the Holders of at least 25% in principal amount of Notes
then outstanding in accordance with this Indenture;

(h) a final judgment for the payment of $25,000,000 or more (excluding any amounts covered by
insurance) rendered against the Company or any Significant Subsidiary of the Company, which
judgment is not discharged or stayed within 60 days after (i) the date on which the right to appeal
thereof has expired if no such appeal has commenced, or (ii) the date on which all rights to appeal
have been extinguished;

(i) the Company or any Significant Subsidiary shall commence a voluntary case or other
proceeding seeking liquidation, reorganization or other relief with respect to the Company or any
such Significant Subsidiary or its debts under any bankruptcy, insolvency or other similar law now
or hereafter in effect or seeking the appointment of a trustee, receiver, liquidator, custodian or
other similar official of the Company or any such Significant Subsidiary or any substantial part of
its property, or shall consent to any such relief or to the appointment of or taking possession by
any such official in an involuntary case or other proceeding commenced against it, or shall make a
general assignment for the benefit of creditors, or shall fail generally to pay its debts as they
become due; or

(j) an involuntary case or other proceeding shall be commenced against the Company or any
Significant Subsidiary seeking liquidation, reorganization or other relief with respect to the
Company or such Significant Subsidiary or its debts under any bankruptcy, insolvency or other
similar law now or hereafter in effect or seeking the appointment of a trustee, receiver,
liquidator, custodian or other similar official of the Company or such Significant Subsidiary or
any substantial part of its property, and such involuntary case or other proceeding shall remain
undismissed and unstayed for a period of 60 consecutive days.

Section 6.02 Acceleration; Rescission and Annulment. In case one or more Events of Default
shall have occurred and be continuing (whatever the reason for such Event of Default and whether it
shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment,
decree or order of any court or any order, rule or regulation of any administrative or governmental
body), then, and in each and every such case (other than an Event of Default specified in
Section 6.01(i) or Section 6.01(j) with respect to the Company), unless the principal of all of the
Notes shall have already become due and payable, either the Trustee or the Holders of at least 25%
in aggregate principal amount of the Notes then outstanding determined in accordance with
Section 8.04, by notice in writing to the Company (and to the Trustee if given by Holders), may
declare 100% of the principal of, and accrued and unpaid interest, if any, on, all the Notes to be
due and payable immediately, and upon any such declaration the same shall become and shall
automatically be immediately due and payable, anything contained in this Indenture or in the Notes
to the contrary notwithstanding. If an Event of Default specified in Section 6.01(i) or
Section 6.01(j) with respect to the Company occurs and is continuing, 100% of the principal of, and
accrued and unpaid interest, if any, on, all Notes shall become and shall automatically be
immediately due and payable.

The immediately preceding paragraph, however, is subject to the conditions that if, at any
time after the principal of the Notes shall have been so declared due and payable, and before any
judgment or decree for the payment of the monies due shall have been obtained or entered as
hereinafter provided, the Company shall pay or shall deposit with the Trustee a sum sufficient to
pay installments of accrued and unpaid interest upon all Notes and the principal of any and all
Notes that shall have become due otherwise than by acceleration (with interest on overdue
installments of accrued and unpaid interest to the extent that payment of such interest is
enforceable under applicable law, and on such principal at the rate borne by the Notes) and amounts
due to the Trustee pursuant to Section 7.06, and if (1) rescission would not conflict with any
judgment or decree of a court of competent jurisdiction and (2) any and all existing Events of
Default under this Indenture, other than the nonpayment of the principal of and accrued and unpaid
interest, if any, on Notes that shall have become due solely by such acceleration, shall have been
cured or waived pursuant to Section 6.09, then and in every such case (except as provided in the
immediately succeeding sentence) the Holders of a majority in aggregate principal amount of the
Notes then outstanding, by written notice to the Company and to the Trustee, may waive all Defaults
or Events of Default with respect to the Notes and rescind and annul such declaration and its
consequences and such Default shall cease to exist, and any Event of Default arising therefrom
shall be deemed to have been cured for every purpose of this Indenture; but no such waiver or
rescission and annulment shall extend to or shall affect any subsequent Default or Event of
Default, or shall impair any right consequent thereon. Notwithstanding anything to the contrary
herein, no such waiver or rescission and annulment shall extend to or shall affect any Default or
Event of Default resulting from (i) the nonpayment of the principal of, or accrued and unpaid
interest on, any Notes or (ii) a failure to pay or deliver, as the case may be, the consideration
due upon conversion of the Notes.

Section 6.03 Additional Interest in Lieu of Reporting Default. Notwithstanding anything in
this Indenture or in the Notes to the contrary, to the extent the Company elects, the sole remedy
for Event of Default relating to the Company’s failure to comply with its obligations as set forth
in Section 4.06(b) shall after the occurrence of such an Event of Default consist exclusively of
the right to receive Additional Interest on the Notes at a rate equal to 0.25% per annum of the
principal amount of the Notes outstanding for each day during the 365-day period on which such
Event of Default is continuing beginning on, and including, the calendar day on which such an Event
of Default first occurs to, but excluding, the 365th day following such Event of Default (or, if
earlier, the date on which such Event of Default is cured or waived as provided for in this
Indenture). Additional Interest payable pursuant to this Section 6.03 shall be in addition to, not
in lieu of, any Additional Interest payable pursuant to Section 4.06(d) or Section 4.06(e). If the
Company so elects, such Additional Interest shall be payable in the same manner and on the same
dates as regular interest on the Notes. On the 366th day after such Event of Default (if the Event
of Default relating to the Company’s failure to comply with its obligations as set forth in
Section 4.06(b) is not cured or waived prior to such 366th day), the Notes will be subject to
acceleration as provided in Section 6.02. In the event the Company does not elect to pay
Additional Interest following an Event of Default in accordance with this Section 6.03, or the
Company elects to pay such Additional Interest but the Company, if applicable, does not pay such
Additional Interest when due, the Notes shall be immediately subject to acceleration as provided in
Section 6.02.

In order to elect to pay Additional Interest as the sole remedy during the first 365 days
after the occurrence of any Event of Default described in the immediately preceding paragraph, the
Company must notify in writing all Holders of the Notes, the Trustee and the Paying Agent of such
election prior to the beginning of such 365-day period. Upon the failure to timely give such
notice, the Notes shall be immediately subject to acceleration as provided in Section 6.02.

In no event shall Additional Interest accrue under the terms of this Indenture (aggregating
any Additional Interest payable pursuant to this Section 6.03 with any Additional Interest payable
pursuant to Section 4.06(d) or Section 4.06(e)) at a rate per year in excess of 0.50%, regardless
of the number of events or circumstances giving rise to the requirement to pay such Additional
Interest.

The Trustee shall not at any time be under any duty or responsibility to any Holder to
determine Additional Interest, or with respect to the nature, extent or calculation of the amount
of Additional Interest owed, or with respect to the method employed in such calculation of
Additional Interest.

Section 6.04 Payments of Notes on Default; Suit Therefor. If an Event of Default described in
clause (a) or (b) of Section 6.01 shall have occurred, the Company shall, upon demand of the
Trustee, pay to the Trustee, for the benefit of the Holders of the Notes, the whole amount then due
and payable on the Notes for principal and interest, if any, with interest on any overdue principal
and interest, if any, at the rate borne by the Notes at such time, and, in addition thereto, such
further amount as shall be sufficient to cover any amounts due to the Trustee under Section 7.06.
If the Company shall fail to pay such amounts forthwith upon such demand, the Trustee, in its own
name and as trustee of an express trust, may institute a judicial proceeding for the collection of
the sums so due and unpaid, may prosecute such proceeding to judgment or final decree and may
enforce the same against the Company or any other obligor upon the Notes and collect the moneys
adjudged or decreed to be payable in the manner provided by law out of the property of the Company
or any other obligor upon the Notes, wherever situated.

In the event there shall be pending proceedings for the bankruptcy or for the reorganization
of the Company or any other obligor on the Notes under Title 11 of the United States Code, or any
other applicable law, or in case a receiver, assignee or trustee in bankruptcy or reorganization,
liquidator, sequestrator or similar official shall have been appointed for or taken possession of
the Company or such other obligor, the property of the Company or such other obligor, or in the
event of any other judicial proceedings relative to the Company or such other obligor upon the
Notes, or to the creditors or property of the Company or such other obligor, the Trustee,
irrespective of whether the principal of the Notes shall then be due and payable as therein
expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made
any demand pursuant to the provisions of this Section 6.04, shall be entitled and empowered, by
intervention in such proceedings or otherwise, to file and prove a claim or claims for the whole
amount of principal and accrued and unpaid interest, if any, in respect of the Notes, and, in case
of any judicial proceedings, to file such proofs of claim and other papers or documents and to take
such other actions as it may deem necessary or advisable in order to have the claims of the Trustee
(including any claim for the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel) and of the Holders allowed in such judicial proceedings relative
to the Company or any other obligor on the Notes, its or their creditors, or its or their property,
and to collect and receive any monies or other property payable or deliverable on any such claims,
and to distribute the same after the deduction of any amounts due to the Trustee under
Section 7.06; and any receiver, assignee or trustee in bankruptcy or reorganization, liquidator,
custodian or similar official is hereby authorized by each of the Holders to make such payments to
the Trustee, as administrative expenses, and, in the event that the Trustee shall consent to the
making of such payments directly to the Holders, to pay to the Trustee any amount due it for
reasonable compensation, expenses, advances and disbursements, including agents and counsel fees,
and including any other amounts due to the Trustee under Section 7.06, incurred by it up to the
date of such distribution. To the extent that such payment of reasonable compensation, expenses,
advances and disbursements out of the estate in any such proceedings shall be denied for any
reason, payment of the same shall be secured by a lien on, and shall be paid out of, any and all
distributions, dividends, monies, securities and other property that the Holders of the Notes may
be entitled to receive in such proceedings, whether in liquidation or under any plan of
reorganization or arrangement or otherwise.

Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to
or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or
composition affecting such Holder or the rights of any Holder thereof, or to authorize the Trustee
to vote in respect of the claim of any Holder in any such proceeding.

All rights of action and of asserting claims under this Indenture, or under any of the Notes,
may be enforced by the Trustee without the possession of any of the Notes, or the production
thereof at any trial or other proceeding relative thereto, and any such suit or proceeding
instituted by the Trustee shall be brought in its own name as trustee of an express trust, and any
recovery of judgment shall, after provision for the payment of the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable
benefit of the Holders of the Notes.

In any proceedings brought by the Trustee (and in any proceedings involving the interpretation
of any provision of this Indenture to which the Trustee shall be a party), the Trustee shall be
held to represent all the Holders of the Notes, and it shall not be necessary to make any Holders
of the Notes parties to any such proceedings.

In case the Trustee shall have proceeded to enforce any right under this Indenture and such
proceedings shall have been discontinued or abandoned because of any waiver pursuant to
Section 6.09 or any rescission and annulment pursuant to Section 6.02 or for any other reason or
shall have been determined adversely to the Trustee, then and in every such case the Company, the
Holders, and the Trustee shall, subject to any determination in such proceeding, be restored
respectively to their several positions and rights hereunder, and all rights, remedies and powers
of the Company, the Holders, and the Trustee shall continue as though no such proceeding had been
instituted.

Section 6.05 Application of Monies Collected by Trustee. Any monies collected by the Trustee
pursuant to this Article VI with respect to the Notes shall be applied in the following order, at
the date or dates fixed by the Trustee for the distribution of such monies, upon presentation of
the several Notes, and stamping thereon the payment, if only partially paid, and upon surrender
thereof, if fully paid:

First, to the payment of all amounts due the Trustee under Section 7.06;

Second, in case the principal of the outstanding Notes shall not have become due and be
unpaid, to the payment of interest on, and any cash due upon conversion of, the Notes in default in
the order of the due date of the payments of such interest and cash due upon conversion, as the
case may be, with interest (to the extent that such interest has been collected by the Trustee)
upon such overdue payments at the rate borne by the Notes at such time, such payments to be made
ratably to the Persons entitled thereto;

Third, in case the principal of the outstanding Notes shall have become due, by declaration or
otherwise, and be unpaid to the payment of the whole amount (including, if applicable, the payment
of the Fundamental Change Repurchase Price and any cash due upon conversion) then owing and unpaid
upon the Notes for principal and interest, if any, with interest on the overdue principal and, to
the extent that such interest has been collected by the Trustee, upon overdue installments of
interest at the rate borne by the Notes at such time, and in case such monies shall be insufficient
to pay in full the whole amounts so due and unpaid upon the Notes, then to the payment of such
principal (including, if applicable, the Fundamental Change Repurchase Price and the cash due upon
conversion) and interest without preference or priority of principal over interest, or of interest
over principal or of any installment of interest over any other installment of interest, or of any
Note over any other Note, ratably to the aggregate of such principal (including, if applicable, the
Fundamental Change Repurchase Price and any cash due upon conversion) and accrued and unpaid
interest; and

Fourth, to the payment of the remainder, if any, to the Company.

Section 6.06 Proceedings by Holders. Except to enforce the right to receive payment of
principal (including, if applicable, the Fundamental Change Repurchase Price) or interest when due,
or the right to receive payment or delivery of the consideration due upon conversion, no Holder of
any Note shall have any right by virtue of or by availing of any provision of this Indenture to
institute any suit, action or proceeding in equity or at law upon or under or with respect to this
Indenture, or for the appointment of a receiver, trustee, liquidator, custodian or other similar
official, or for any other remedy hereunder, unless:

(a) such Holder previously shall have given to the Trustee written notice of an Event of
Default and of the continuance thereof, as herein provided;

(b) Holders of at least 25% in aggregate principal amount of the Notes then outstanding shall
have made written request upon the Trustee to pursue such remedy hereunder;

(c) such Holders shall have offered to the Trustee such security or indemnity satisfactory to
it against any loss, liability or expense to be incurred therein or thereby;

(d) the Trustee for 60 days after its receipt of the request and offer of security or
indemnity, had not complied with such request; and

(e) no direction that, in the opinion of the Trustee, is inconsistent with such written
request shall have been given to the Trustee by the Holders of a majority of the aggregate
principal amount of the Notes then outstanding within such 60-day period pursuant to Section 6.09,

it being understood and intended, and being expressly covenanted by the taker and Holder of every
Note with every other taker and Holder and the Trustee that no one or more Holders shall have any
right in any manner whatever by virtue of or by availing of any provision of this Indenture to
affect, disturb or prejudice the rights of any other Holder, or to obtain or seek to obtain
priority over or preference to any other such Holder, or to enforce any right under this Indenture,
except in the manner herein provided and for the equal, ratable and common benefit of all Holders
(except as otherwise provided herein) (it being understood that the Trustee does not have an
affirmative duty to ascertain whether or not such actions or forbearances are unduly prejudicial to
such Holders). For the protection and enforcement of this Section 6.06, each and every Holder and
the Trustee shall be entitled to such relief as can be given either at law or in equity.

Notwithstanding any other provision of this Indenture and any provision of any Note, the right
of any Holder to receive payment or delivery, as the case may be, of (x) the principal (including
the Fundamental Change Repurchase Price, if applicable) of, (y) accrued and unpaid interest, if
any, on, and (z) the consideration due upon conversion of, such Note, on or after the respective
due dates expressed or provided for in such Note or in this Indenture, or to institute suit for the
enforcement of any such payment or delivery, as the case may be, on or after such respective dates
against the Company shall not be impaired or affected without the consent of such Holder.

Section 6.07 Proceedings by Trustee. In case of an Event of Default the Trustee may in its
discretion (subject to the provisions of Section 7.01) proceed to protect and enforce the rights
vested in it by this Indenture by such appropriate judicial proceedings as are necessary to protect
and enforce any of such rights, either by suit in equity or by action at law or by proceeding in
bankruptcy or otherwise, whether for the specific enforcement of any covenant or agreement
contained in this Indenture or in aid of the exercise of any power granted in this Indenture, or to
enforce any other legal or equitable right vested in the Trustee by this Indenture or by law.

Section 6.08 Remedies Cumulative and Continuing. Except as provided in the last paragraph of
Section 2.06, all powers and remedies given by this Article VI to the Trustee or to the Holders
shall, to the extent permitted by law, be deemed cumulative and not exclusive of any thereof or of
any other powers and remedies available to the Trustee or the Holders of the Notes, by judicial
proceedings or otherwise, to enforce the performance or observance of the covenants and agreements
contained in this Indenture, and no delay or omission of the Trustee or of any Holder of any of the
Notes to exercise any right or power accruing upon any Default or Event of Default shall impair any
such right or power, or shall be construed to be a waiver of any such Default or Event of Default
or any acquiescence therein; and, subject to the provisions of Section 6.06, every power and remedy
given by this Article VI or by law to the Trustee or to the Holders may be exercised from time to
time, and as often as shall be deemed expedient, by the Trustee or by the Holders.

Section 6.09 Direction of Proceedings and Waiver of Defaults by Majority of Holders. The
Holders of a majority of the aggregate principal amount of the Notes at the time outstanding
determined in accordance with Section 8.04 shall have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee or exercising any trust
or power conferred on the Trustee with respect to Notes; provided, however, that such direction
shall not be in conflict with any rule of law or with this Indenture, and the Trustee may take any
other action deemed proper by the Trustee that is not inconsistent with such direction. The
Trustee may refuse to follow any direction that it determines is unduly prejudicial to the rights
of any other Holder or that would involve the Trustee in personal liability. The Holders of a
majority in aggregate principal amount of the Notes at the time outstanding determined in
accordance with Section 8.04 may on behalf of the Holders of all of the Notes waive any past
Default or Event of Default hereunder and its consequences except (i) a default in the payment of
accrued and unpaid interest, if any, on, or the principal (including any Fundamental Change
Repurchase Price) of, the Notes when due that has not been cured pursuant to the provisions of
Section 6.01, (ii) a failure by the Company to pay or deliver, as the case may be, the
consideration due upon conversion of the Notes or (iii) a default in respect of a covenant or
provision hereof which under Article X cannot be modified or amended without the consent of each
Holder of an outstanding Note affected. Upon any such waiver the Company, the Trustee and the
Holders of the Notes shall be restored to their former positions and rights hereunder, but no such
waiver shall extend to any subsequent or other Default or Event of Default or impair any right
consequent thereon. Whenever any Default or Event of Default hereunder shall have been waived as
permitted by this Section 6.09, said Default or Event of Default shall for all purposes of the
Notes and this Indenture be deemed to have been cured and to be not continuing; but no such waiver
shall extend to any subsequent or other Default or Event of Default or impair any right consequent
thereon.

Section 6.10 Notice of Defaults. The Trustee shall, within 90 days after a Responsible
Officer of the Trustee receives written notice of the occurrence and continuance of a Default, send
to all Holders as the names and addresses of such Holders appear upon the Note Register, notice of
all such Defaults, unless such Defaults shall have been cured or waived before the giving of such
notice; provided that, except in the case of a Default in the payment of the principal of
(including the Fundamental Change Repurchase Price, if applicable), or accrued and unpaid interest
on, any of the Notes or a Default in the payment or delivery of the consideration due upon
conversion, the Trustee shall be protected in withholding such notice if and so long as it in good
faith determines that the withholding of such notice is in the interests of the Holders.

Section 6.11 Undertaking to Pay Costs. All parties to this Indenture agree, and each Holder
of any Note by its acceptance thereof shall be deemed to have agreed, that any court may, in its
discretion, require, in any suit for the enforcement of any right or remedy under this Indenture,
or in any suit against the Trustee for any action taken or omitted by it as Trustee, the filing by
any party litigant in such suit of an undertaking to pay the costs of such suit and that such court
may in its discretion assess reasonable costs, including reasonable attorneys’ fees and expenses,
against any party litigant in such suit, having due regard to the merits and good faith of the
claims or defenses made by such party litigant; provided that the provisions of this Section 6.11
(to the extent permitted by law) shall not apply to any suit instituted by the Trustee, to any suit
instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal
amount of the Notes at the time outstanding determined in accordance with Section 8.04, or to any
suit instituted by any Holder for the enforcement of the payment of the principal of or accrued and
unpaid interest, if any, on any Note (including, but not limited to, the Fundamental Change
Repurchase Price with respect to the Notes being repurchased as provided in this Indenture) on or
after the due date expressed or provided for in such Note or to any suit for the enforcement of the
right to convert any Note in accordance with the provisions of Article XIII.

ARTICLE VII

Concerning the Trustee

Section 7.01 Duties and Responsibilities of Trustee. The Trustee, prior to the
occurrence of an Event of Default and after the curing or waiver of all Events of Default that may
have occurred, undertakes to perform such duties and only such duties as are specifically set forth
in this Indenture. In case an Event of Default has occurred that has not been cured or waived the
Trustee shall exercise such of the rights and powers vested in it by this Indenture, and use the
same degree of care and skill in their exercise, as a prudent person would exercise or use under
the circumstances in the conduct of such person’s own affairs; provided that if an Event of Default
occurs and is continuing, the Trustee will be under no obligation to exercise any of the rights or
powers under this Indenture at the request or direction of any of the Holders unless such Holders
have offered to the Trustee indemnity or security satisfactory to the Trustee against the costs,
expenses and liabilities that might be incurred by it in compliance with such request or direction.

No provision of this Indenture shall be construed to relieve the Trustee from liability for
its own grossly negligent action, its own grossly negligent failure to act, its own willful
misconduct or its own bad faith, except that:

(a) prior to the occurrence of an Event of Default and after the curing or waiving of all
Events of Default that may have occurred:

(i) the duties and obligations of the Trustee shall be determined solely by the express
provisions of this Indenture, and the Trustee shall not be liable except for the performance of
such duties and obligations as are specifically set forth in this Indenture and no implied
covenants or obligations shall be read into this Indenture against the Trustee; and

(ii) in the absence of bad faith on the part of the Trustee, the Trustee may conclusively
rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon
any certificates or opinions furnished to the Trustee and conforming to the requirements of this
Indenture; but, in the case of any such certificates or opinions that by any provisions hereof are
specifically required to be furnished to the Trustee, the Trustee shall be under a duty to examine
the same to determine whether or not they conform to the requirements of this Indenture (but need
not confirm or investigate the accuracy of any mathematical calculations or other facts stated
therein);

(b) the Trustee shall not be liable for any error of judgment made in good faith by a
Responsible Officer or Officers of the Trustee, unless it shall be proved that the Trustee was
grossly negligent in ascertaining the pertinent facts;

(c) the Trustee shall not be responsible or liable for any action it takes, suffers or omits
to take in good faith that it believes to be authorized or within the rights or powers conferred
upon it by this Indenture;

(d) the Trustee shall not be liable with respect to any action taken or omitted to be taken by
it in good faith in accordance with the direction of the Holders of not less than a majority of the
aggregate principal amount of the Notes at the time outstanding determined as provided in
Section 8.04 relating to the time, method and place of conducting any proceeding for any remedy
available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this
Indenture;

(e) whether or not therein provided, every provision of this Indenture relating to the conduct
or affecting the liability of, or affording protection to, the Trustee shall be subject to the
provisions of this Section;

(f) the Trustee shall not be liable in respect of any payment (as to the correctness of
amount, entitlement to receive or any other matters relating to payment) or notice effected by the
Company or any Paying Agent or any records maintained by any co-Note Registrar with respect to the
Notes;

(g) if any party fails to deliver a notice relating to an event the fact of which, pursuant to
this Indenture, requires notice to be sent to the Trustee, the Trustee may conclusively rely on its
failure to receive such notice as reason to act as if no such event occurred, unless a Responsible
Officer of the Trustee had actual knowledge of such event;

(h) in the absence of written investment direction from the Company, all cash received by the
Trustee shall be placed in a non-interest bearing trust account, and in no event shall the Trustee
be liable for the selection of investments or for investment losses, fees, taxes or other costs
incurred with respect thereto or for losses incurred as a result of the liquidation of any such
investment prior to its maturity date or the failure of the party directing such investments prior
to its maturity date or the failure of the party directing such investment to provide timely
written investment direction, and the Trustee shall have no obligation to invest or reinvest any
amounts held hereunder in the absence of such written investment direction from the Company; and

(i) in the event that the Trustee is also acting as Custodian, Note Registrar, Paying Agent,
Conversion Agent, Bid Solicitation Agent or transfer agent hereunder, the rights and protections
afforded to the Trustee pursuant to this Article VII, including, without limitation, the right to
be indemnified, shall also be afforded to such Custodian, Note Registrar, Paying Agent, Conversion
Agent, Bid Solicitation Agent or transfer agent.

None of the provisions contained in this Indenture shall require the Trustee to expend or risk
its own funds or otherwise incur personal financial liability in the performance of any of its
duties or in the exercise of any of its rights or powers.

Section 7.02 Reliance on Documents, Opinions, Etc. Except as otherwise provided in
Section 7.01:

(a) the Trustee may conclusively rely and shall be fully protected in acting or refraining
from acting upon any resolution, certificate, statement, instrument, opinion, report, notice,
request, consent, order, bond, note, coupon or other paper or document believed by it in good faith
to be genuine and to have been signed or presented by the proper party or parties;

(b) before the Trustee acts or refrains from acting, it may require an Officer’s Certificate
or an Opinion of Counsel or both. The Trustee will not be liable for any action it takes or omits
to take in good faith in reliance on such Officer’s Certificate or Opinion of Counsel;

(c) any request, direction, order or demand of the Company mentioned herein shall be
sufficiently evidenced by an Officer’s Certificate (unless other evidence in respect thereof be
herein specifically prescribed); and any Board Resolution may be evidenced to the Trustee by a copy
thereof certified by the Secretary or an Assistant Secretary of the Company;

(d) the Trustee may consult with counsel of its selection and require an Opinion of Counsel
and any advice of such counsel or Opinion of Counsel shall be full and complete authorization and
protection or reliance on in respect of any action taken, suffered or omitted by it hereunder in
good faith and in accordance with such advice or Opinion of Counsel;

(e) the Trustee shall not be bound to make any investigation into the facts or matters stated
in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction,
consent, order, bond, debenture or other paper or document, but the Trustee, in its discretion, may
make such further inquiry or investigation into such facts or matters as it may see fit, and, if
the Trustee shall determine to make such further inquiry or investigation, it shall be entitled to
examine the books, records and premises of the Company, personally or by agent or attorney at the
expense of the Company and shall incur no liability of any kind by reason of such inquiry or
investigation;

(f) the Trustee shall not be required to give any bond or surety in respect of the performance
of its powers and duties hereunder;

(g) the rights, privileges, protections, immunities and benefits given to the Trustee,
including, without limitation, its right to be indemnified, are extended to, and shall be
enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and
other Person employed to act hereunder;

(h) the Trustee may request that the Company deliver a certificate setting forth the names of
individuals and/or titles of officers authorized at such time to take specified actions pursuant to
this Indenture (i.e., an incumbency certificate);

(i) the Trustee may execute any of the trusts or powers hereunder or perform any duties
hereunder either directly or by or through agents, custodians, nominees or attorneys and the
Trustee shall not be responsible for any misconduct or negligence on the part of any agent,
custodian, nominee or attorney appointed by it with due care hereunder;

(j) the permissive rights of the Trustee enumerated herein shall not be construed as duties;
and

(k) the Trustee shall be under no obligation to exercise any of the rights or powers vested in
it by this Indenture at the request or direction of any of the Holders pursuant to this Indenture,
unless such Holders shall have offered to the Trustee security or indemnity satisfactory to it
against the costs, expenses and liabilities which might be incurred by it in compliance with such
request or direction.

In no event shall the Trustee be responsible or liable for any special, indirect, punitive or
consequential loss or damage of any kind whatsoever (including, but not limited to, lost profits),
even if the Trustee has been advised of the likelihood of such loss or damage and regardless of the
form of action. The Trustee shall not be charged with knowledge of any Default or Event of Default
with respect to the Notes, unless either (1) a Responsible Officer shall have actual knowledge of
such Default or Event of Default or (2) written notice of such Default or Event of Default is
received by the Trustee at the Corporate Trust Office of the Trustee, and such notice references
the Notes and this Indenture.

Section 7.03 No Responsibility for Recitals, Etc. The recitals contained herein and in the
Notes (except in the Trustee’s certificate of authentication) shall be taken as the statements of
the Company, and the Trustee assumes no responsibility for the correctness of the same. The
Trustee makes no representations as to the validity or sufficiency of this Indenture or of the
Notes. The Trustee shall not be accountable for the use or application by the Company of any Notes
or the proceeds of any Notes authenticated and delivered by the Trustee in conformity with the
provisions of this Indenture.

Section 7.04 Trustee, Paying Agents, Conversion Agents, Bid Solicitation Agent or Note
Registrar May Own Notes. The Trustee, any Paying Agent (if other than the Company), any Conversion
Agent, Bid Solicitation Agent (if other than the Company) or Note Registrar, in its individual or
any other capacity, may become the owner or pledgee of Notes with the same rights it would have if
it were not the Trustee, Paying Agent, Conversion Agent, Bid Solicitation Agent or Note Registrar.

Section 7.05 Monies and Shares of Common Stock to Be Held in Trust. All monies and any shares
of Common Stock received by the Trustee shall, until used or applied as herein provided, be held in
trust for the purposes for which they were received. Money and any shares of Common Stock held by
the Trustee in trust hereunder need not be segregated from other funds or property except to the
extent required by law. The Trustee shall be under no liability for interest on any money or
shares of any Common Stock received by it hereunder except as may be agreed from time to time in
writing by the Company and the Trustee.

Section 7.06 Compensation and Expenses of Trustee. The Company covenants and agrees to pay to
the Trustee from time to time, and the Trustee shall be entitled to, such compensation for all
services rendered by it hereunder in any capacity (which shall not be limited by any provision of
law in regard to the compensation of a trustee of an express trust) as mutually agreed to in
writing between the Trustee and the Company, and the Company will pay or reimburse the Trustee upon
its request for all reasonable expenses, disbursements and advances reasonably incurred or made by
the Trustee in accordance with any of the provisions of this Indenture in any capacity thereunder
(including the reasonable compensation and the expenses and disbursements of its agents and counsel
and of all Persons not regularly in its employ) except any such expense, disbursement or advance as
shall have been caused by its gross negligence, willful misconduct or bad faith. The Company also
covenants to indemnify the Trustee or any predecessor Trustee in any capacity under this Indenture
and any other document or transaction entered into in connection herewith and their agents and any
authenticating agent for, and to hold them harmless against, any loss, claim (whether asserted by
the Company, any Holder or any other Person), damage, liability or expense incurred without gross
negligence, willful misconduct or bad faith on the part of the Trustee, its officers, directors,
agents or employees, or such agent or authenticating agent, as the case may be, and arising out of
or in connection with the acceptance or administration of this trust or in any other capacity
hereunder, including the costs and expenses of defending themselves against any claim of liability
in the premises. The obligations of the Company under this Section 7.06 to compensate or indemnify
the Trustee and to pay or reimburse the Trustee for expenses, disbursements and advances shall be
secured by a senior claim to which the Notes are hereby made subordinate on all money or property
held or collected by the Trustee, except, subject to the effect of Section 6.05, funds held in
trust herewith for the benefit of the Holders of particular Notes. The Trustee’s right to receive
payment of any amounts due under this Section 7.06 shall not be subordinate to any other liability
or indebtedness of the Company. The obligations of the Company under this Section 7.06 shall
survive the satisfaction and discharge of this Indenture and the earlier resignation or removal of
the Trustee. The Company need not pay for any settlement made without its consent, which consent
shall not be unreasonably withheld. The indemnification provided in this Section 7.06 shall extend
to the officers, directors, agents and employees of the Trustee.

Without prejudice to any other rights available to the Trustee under applicable law, when the
Trustee and its agents and any authenticating agent incur expenses or render services after an
Event of Default specified in Section 6.01(i) or Section 6.01(j) occurs, the expenses (including
the reasonable charges and expenses of its counsel) and the compensation for the services are
intended to constitute expenses of administration under any bankruptcy, insolvency or similar laws.

Section 7.07 Eligibility of Trustee. There shall at all times be a Trustee hereunder which
shall be a Person that is eligible pursuant to the Trust Indenture Act to act as such and has a
combined capital and surplus of at least $50,000,000. If such Person publishes reports of
condition at least annually, pursuant to law or to the requirements of any supervising or examining
authority, then for the purposes of this Section, the combined capital and surplus of such Person
shall be deemed to be its combined capital and surplus as set forth in its most recent report of
condition so published. If at any time the Trustee shall cease to be eligible in accordance with
the provisions of this Section, it shall resign immediately in the manner and with the effect
hereinafter specified in this Article.

Section 7.08 Resignation or Removal of Trustee. (a) The Trustee may at any time resign by
giving written notice of such resignation to the Company and by mailing notice thereof to the
Holders at their addresses as they shall appear on the Note Register. Upon receiving such notice
of resignation, the Company shall promptly appoint a successor trustee by written instrument, in
duplicate, executed by order of the Board of Directors, one copy of which instrument shall be
delivered to the resigning Trustee and one copy to the successor trustee. If no successor trustee
shall have been so appointed and have accepted appointment within 30 days after the mailing of such
notice of resignation to the Holders, the resigning Trustee may, at the expense of the Company,
petition any court of competent jurisdiction for the appointment of a successor trustee, or any
Holder who has been a bona fide holder of a Note or Notes for at least six months may, subject to
the provisions of Section 6.11, on behalf of himself or herself and all others similarly situated,
petition any such court for the appointment of a successor trustee. Such court may thereupon,
after such notice, if any, as it may deem proper and prescribe, appoint a successor trustee.

(b) In case at any time any of the following shall occur:

(i) the Trustee shall cease to be eligible in accordance with the provisions of Section 7.07
and shall fail to resign after written request therefor by the Company or by any such Holder, or

(ii) the Trustee shall become incapable of acting, or shall be adjudged a bankrupt or
insolvent, or a receiver of the Trustee or of its property shall be appointed, or any public
officer shall take charge or control of the Trustee or of its property or affairs for the purpose
of rehabilitation, conservation or liquidation,

then, in either case, the Company may by a Board Resolution remove the Trustee and appoint a
successor trustee by written instrument, in duplicate, executed by order of the Board of Directors,
one copy of which instrument shall be delivered to the Trustee so removed and one copy to the
successor trustee, or, subject to the provisions of Section 6.11, any Holder who has been a bona
fide holder of a Note or Notes for at least six months may, on behalf of himself or herself and all
others similarly situated, at the expense of the Company, petition any court of competent
jurisdiction for the removal of the Trustee and the appointment of a successor trustee. Such court
may thereupon, after such notice, if any, as it may deem proper and prescribe, remove the Trustee
and appoint a successor trustee. If no successor trustee shall have been so appointed and have
accepted appointment within 30 days after the mailing of such notice of removal to the Holders, the
Trustee being removed may, at the expense of the Company, petition any court of competent
jurisdiction for the appointment of a successor trustee with respect to the Notes.

(c) The Holders of a majority in aggregate principal amount of the Notes at the time
outstanding, as determined in accordance with Section 8.04, may at any time remove the Trustee and
nominate a successor trustee by so notifying the Trustee and the Company in writing not less than
30 days prior to the effective date of such removal. If within ten days after notice to the
Company of such nomination the Company objects thereto, the Trustee so removed or any Holder, upon
the terms and conditions and otherwise as in Section 7.08 provided, may petition any court of
competent jurisdiction for an appointment of a successor trustee.

(d) Any resignation or removal of the Trustee and appointment of a successor trustee pursuant
to any of the provisions of this Section 7.08 shall become effective upon acceptance of appointment
by the successor trustee as provided in Section 7.09.

Section 7.09 Acceptance by Successor Trustee. Any successor trustee appointed as provided in
Section 7.08 shall execute, acknowledge and deliver to the Company and to its predecessor trustee
an instrument accepting such appointment hereunder, and thereupon the resignation or removal of the
predecessor trustee shall become effective and such successor trustee, without any further act,
deed or conveyance, shall become vested with all the rights, powers, duties and obligations of its
predecessor hereunder, with like effect as if originally named as Trustee herein; but,
nevertheless, on the written request of the Company or of the successor trustee, the trustee
ceasing to act shall, upon payment of any amounts then due it pursuant to the provisions of
Section 7.06, execute and deliver an instrument transferring to such successor trustee all the
rights and powers of the trustee so ceasing to act. Upon request of any such successor trustee,
the Company shall execute any and all instruments in writing for more fully and certainly vesting
in and confirming to such successor trustee all such rights and powers. Any trustee ceasing to act
shall, nevertheless, retain a senior claim to which the Notes are hereby made subordinate on all
money or property held or collected by such trustee as such, except for funds held in trust for the
benefit of Holders of particular Notes, to secure any amounts then due it pursuant to the
provisions of Section 7.06.

No successor trustee shall accept appointment as provided in this Section 7.09 unless at the
time of such acceptance such successor trustee shall be eligible under the provisions of
Section 7.07.

Upon acceptance of appointment by a successor trustee as provided in this Section 7.09, each
of the Company and the successor trustee, at the written direction and at the expense of the
Company shall mail or cause to be mailed notice of the succession of such trustee hereunder to the
Holders at their addresses as they shall appear on the Note Register. If the Company fails to mail
such notice within ten days after acceptance of appointment by the successor trustee, the successor
trustee shall cause such notice to be mailed at the expense of the Company.

The Trustee shall have no responsibility or liability for the action or inaction of a
successor trustee.

Section 7.10 Succession by Merger, Etc. Any corporation or other entity into which the
Trustee may be merged or converted or with which it may be consolidated, or any corporation or
other entity resulting from any merger, conversion or consolidation to which the Trustee shall be a
party, or any corporation or other entity succeeding to all or substantially all of the corporate
trust business of the Trustee (including the administration of this Indenture), shall be the
successor to the Trustee hereunder without the execution or filing of any paper or any further act
on the part of any of the parties hereto; provided that in the case of any corporation or other
entity succeeding to all or substantially all of the corporate trust business of the Trustee such
corporation or other entity shall be eligible under the provisions of Section 7.07.

In case at the time such successor to the Trustee shall succeed to the trusts created by this
Indenture, any of the Notes shall have been authenticated but not delivered, any such successor to
the Trustee may adopt the certificate of authentication of any predecessor trustee or
authenticating agent appointed by such predecessor trustee, and deliver such Notes so
authenticated; and in case at that time any of the Notes shall not have been authenticated, any
successor to the Trustee or an authenticating agent appointed by such successor trustee may
authenticate such Notes either in the name of any predecessor trustee hereunder or in the name of
the successor trustee; and in all such cases such certificates shall have the full force which it
is anywhere in the Notes or in this Indenture provided that the certificate of the Trustee shall
have; provided, however, that the right to adopt the certificate of authentication of any
predecessor trustee or to authenticate Notes in the name of any predecessor trustee shall apply
only to its successor or successors by merger, conversion or consolidation.

Section 7.11 Trustee’s Application for Instructions from the Company. Any application by the
Trustee for written instructions from the Company (other than with regard to any action proposed to
be taken or omitted to be taken by the Trustee that affects the rights of the Holders of the Notes
under this Indenture) may, at the option of the Trustee, set forth in writing any action proposed
to be taken or omitted by the Trustee under this Indenture and the date on and/or after which such
action shall be taken or such omission shall be effective. The Trustee shall not be liable for any
action taken by, or omission of, the Trustee in accordance with a proposal included in such
application on or after the date specified in such application (which date shall not be less than
three Business Days after the date any officer that the Company has indicated to the Trustee should
receive such application actually receives such application, unless any such officer shall have
consented in writing to any earlier date), unless, prior to taking any such action (or the
effective date in the case of any omission), the Trustee shall have received written instructions
in accordance with this Indenture in response to such application specifying the action to be taken
or omitted.

ARTICLE VIII

Concerning the Holders

Section 8.01 Action by Holders. Whenever in this Indenture it is provided that the
Holders of a specified percentage of the aggregate principal amount of the Notes may take any
action (including the making of any demand or request, the giving of any notice, consent or waiver
or the taking of any other action), the fact that at the time of taking any such action, the
Holders of such specified percentage have joined therein may be evidenced by (a) any instrument or
any number of instruments of similar tenor executed by Holders in person or by agent or proxy
appointed in writing, or (b) the record of the Holders voting in favor thereof at any meeting of
Holders duly called and held in accordance with the provisions of Article IX, or (c) a combination
of such instrument or instruments and any such record of such a meeting of Holders. Whenever the
Company or the Trustee solicits the taking of any action by the Holders of the Notes, the Company
or the Trustee may, but shall not be required to, fix in advance of such solicitation, a date as
the record date for determining Holders entitled to take such action. The record date if one is
selected shall be not more than fifteen days prior to the date of commencement of solicitation of
such action.

Section 8.02 Proof of Execution by Holders. Subject to the provisions of Section 7.01,
Section 7.02 and Section 9.05, proof of the execution of any instrument by a Holder or its agent or
proxy shall be sufficient if made in accordance with such reasonable rules and regulations as may
be prescribed by the Trustee or in such manner as shall be satisfactory to the Trustee. The
holding of Notes shall be proved by the Note Register or by a certificate of the Note Registrar.
The record of any Holders’ meeting shall be proved in the manner provided in Section 9.06.

Section 8.03 Who Are Deemed Absolute Owners. The Company, the Trustee, any authenticating
agent, any Paying Agent, any Conversion Agent and any Note Registrar may deem the Person in whose
name a Note shall be registered upon the Note Register to be, and may treat it as, the absolute
owner of such Note (whether or not such Note shall be overdue and notwithstanding any notation of
ownership or other writing thereon made by any Person other than the Company or any Note Registrar)
for the purpose of receiving payment of or on account of the principal of and (subject to
Section 2.03) accrued and unpaid interest on such Note, for conversion of such Note and for all
other purposes under this Indenture; and neither the Company nor the Trustee nor any Paying Agent
nor any Conversion Agent nor any Note Registrar shall be affected by any notice to the contrary.
The sole registered holder of a Global Note shall be the Depositary or its nominee. All such
payments or deliveries so made to any Holder for the time being, or upon its order, shall be valid,
and, to the extent of the sums or shares of Common Stock so paid or delivered, effectual to satisfy
and discharge the liability for monies payable or shares deliverable upon any such Note.
Notwithstanding anything to the contrary in this Indenture or the Notes following an Event of
Default, any owner of a beneficial interest in a Global Note may directly enforce against the
Company, without the consent, solicitation, proxy, authorization or any other action of the
Depositary or any other Person, such owner’s right to exchange such beneficial interest for a Note
in certificated form in accordance with the provisions of this Indenture.

Section 8.04 Company-Owned Notes Disregarded. In determining whether the Holders of the
requisite aggregate principal amount of Notes have concurred in any direction, consent, waiver or
other action under this Indenture, Notes that are owned by the Company, by any Subsidiary thereof
or by any Person directly or indirectly controlling or controlled by or under direct or indirect
common control with the Company or any Subsidiary thereof shall be disregarded and deemed not to be
outstanding for the purpose of any such determination; provided that for the purposes of
determining whether the Trustee shall be protected in conclusively relying on any such direction,
consent, waiver or other action only Notes that a Responsible Officer actually knows are so owned
shall be so disregarded. Notes so owned that have been pledged in good faith may be regarded as
outstanding for the purposes of this Section 8.04 if the pledgee shall establish to the
satisfaction of the Trustee the pledgee’s right to so act with respect to such Notes and that the
pledgee is not the Company, a Subsidiary thereof or a Person directly or indirectly controlling or
controlled by or under direct or indirect common control with the Company or a Subsidiary thereof.
In the case of a dispute as to such right, any decision or indecision by the Trustee taken upon the
advice of counsel shall be full protection to the Trustee. The Company shall furnish to the
Trustee promptly an Officer’s Certificate listing and identifying all Notes, if any, known by the
Company to be owned or held by or for the account of any of the above described Persons; and,
subject to Section 7.01, the Trustee shall be entitled to accept such Officer’s Certificate as
conclusive evidence of the facts therein set forth and of the fact that all Notes not listed
therein are outstanding for the purpose of any such determination.

Section 8.05 Revocation of Consents; Future Holders Bound. At any time prior to (but not
after) the evidencing to the Trustee, as provided in Section 8.01, of the taking of any action by
the Holders of the percentage of the aggregate principal amount of the Notes specified in this
Indenture in connection with such action, any Holder of a Note that is shown by the evidence to be
included in the Notes the Holders of which have consented to such action may, by filing written
notice with the Trustee at its Corporate Trust Office and upon proof of holding as provided in
Section 8.02, revoke such action so far as concerns such Note. Except as aforesaid, any such
action taken by the Holder of any Note shall be conclusive and binding upon such Holder and upon
all future Holders and owners of such Note and of any Notes issued in exchange or substitution
therefor or upon registration of transfer thereof, irrespective of whether any notation in regard
thereto is made upon such Note or any Note issued in exchange or substitution therefor or upon
registration of transfer thereof.

ARTICLE IX

Holders’ Meetings

Section 9.01 Purpose of Meetings. A meeting of Holders may be called at any time and
from time to time pursuant to the provisions of this Article IX for any of the following purposes:

(a) to give any notice to the Company or to the Trustee or to give any directions to the
Trustee permitted under this Indenture, or to consent to the waiving of any Default or Event of
Default hereunder (in each case, as permitted under this Indenture) and its consequences, or to
take any other action authorized to be taken by Holders pursuant to any of the provisions of
Article VI;

(b) to remove the Trustee and nominate a successor trustee pursuant to the provisions of
Article VII;

(c) to consent to the execution of an indenture or indentures supplemental hereto pursuant to
the provisions of Section 10.02; or

(d) to take any other action authorized to be taken by or on behalf of the Holders of any
specified aggregate principal amount of the Notes under any other provision of this Indenture or
under applicable law.

Section 9.02 Call of Meetings by Trustee. The Trustee may at any time call a meeting of
Holders to take any action specified in Section 9.01, to be held at such time and at such place as
the Trustee shall determine. Notice of every meeting of the Holders, setting forth the time and
the place of such meeting and in general terms the action proposed to be taken at such meeting and
the establishment of any record date pursuant to Section 8.01, shall be mailed to Holders of such
Notes at their addresses as they shall appear on the Note Register. Such notice shall also be
mailed to the Company. Such notices shall be mailed not less than 20 nor more than 90 days prior
to the date fixed for the meeting.

Any meeting of Holders shall be valid without notice if the Holders of all Notes then
outstanding are present in person or by proxy or if notice is waived before or after the meeting by
the Holders of all Notes then outstanding, and if the Company and the Trustee are either present by
duly authorized representatives or have, before or after the meeting, waived notice.

Section 9.03 Call of Meetings by Company or Holders. In case at any time the Company,
pursuant to a Board Resolution, or the Holders of at least 10% of the aggregate principal amount of
the Notes then outstanding, shall have requested the Trustee to call a meeting of Holders, by
written request setting forth in reasonable detail the action proposed to be taken at the meeting,
and the Trustee shall not have mailed the notice of such meeting within 20 days after receipt of
such request, then the Company or such Holders may determine the time and the place for such
meeting and may call such meeting to take any action authorized in Section 9.01, by mailing notice
thereof as provided in Section 9.02.

Section 9.04 Qualifications for Voting. To be entitled to vote at any meeting of Holders a
Person shall (a) be a Holder of one or more Notes on the record date pertaining to such meeting or
(b) be a Person appointed by an instrument in writing as proxy by a Holder of one or more Notes on
the record date pertaining to such meeting. The only Persons who shall be entitled to be present
or to speak at any meeting of Holders shall be the Persons entitled to vote at such meeting and
their counsel and any representatives of the Trustee and its counsel and any representatives of the
Company and its counsel.

Section 9.05 Regulations. Notwithstanding any other provisions of this Indenture, the Trustee
may make such reasonable regulations as it may deem advisable for any meeting of Holders, in regard
to proof of the holding of Notes and of the appointment of proxies, and in regard to the
appointment and duties of inspectors of votes, the submission and examination of proxies,
certificates and other evidence of the right to vote, and such other matters concerning the conduct
of the meeting as it shall think fit.

The Trustee shall, by an instrument in writing, appoint a temporary chairman of the meeting,
unless the meeting shall have been called by the Company or by Holders as provided in Section 9.03,
in which case the Company or the Holders calling the meeting, as the case may be, shall in like
manner appoint a temporary chairman. A permanent chairman and a permanent secretary of the meeting
shall be elected by vote of the Holders of a majority in aggregate principal amount of the Notes
represented at the meeting and entitled to vote at the meeting.

Subject to the provisions of Section 8.04, at any meeting of Holders each Holder or
proxyholder shall be entitled to one vote for each $1,000 principal amount of Notes held or
represented by him or her; provided, however, that no vote shall be cast or counted at any meeting
in respect of any Note challenged as not outstanding and ruled by the chairman of the meeting to be
not outstanding. The chairman of the meeting shall have no right to vote other than by virtue of
Notes held by it or instruments in writing as aforesaid duly designating it as the proxy to vote on
behalf of other Holders. Any meeting of Holders duly called pursuant to the provisions of
Section 9.02 or Section 9.03 may be adjourned from time to time by the Holders of a majority of the
aggregate principal amount of Notes represented at the meeting, whether or not constituting a
quorum, and the meeting may be held as so adjourned without further notice.

Section 9.06 Voting. The vote upon any resolution submitted to any meeting of Holders shall
be by written ballot on which shall be subscribed the signatures of the Holders or of their
representatives by proxy and the outstanding aggregate principal amount of the Notes held or
represented by them. The permanent chairman of the meeting shall appoint two inspectors of votes
who shall count all votes cast at the meeting for or against any resolution and who shall make and
file with the secretary of the meeting their verified written reports in duplicate of all votes
cast at the meeting. A record in duplicate of the proceedings of each meeting of Holders shall be
prepared by the secretary of the meeting and there shall be attached to said record the original
reports of the inspectors of votes on any vote by ballot taken thereat and affidavits by one or
more Persons having knowledge of the facts setting forth a copy of the notice of the meeting and
showing that said notice was mailed as provided in Section 9.02. The record shall show the
aggregate principal amount of the Notes voting in favor of or against any resolution. The record
shall be signed and verified by the affidavits of the permanent chairman and secretary of the
meeting and one of the duplicates shall be delivered to the Company and the other to the Trustee to
be preserved by the Trustee, the latter to have attached thereto the ballots voted at the meeting.

Any record so signed and verified shall be conclusive evidence of the matters therein stated.

Section 9.07 No Delay of Rights by Meeting. Nothing contained in this Article IX shall be
deemed or construed to authorize or permit, by reason of any call of a meeting of Holders or any
rights expressly or impliedly conferred hereunder to make such call, any hindrance or delay in the
exercise of any right or rights conferred upon or reserved to the Trustee or to the Holders under
any of the provisions of this Indenture or of the Notes. Nothing contained in this Article IX
shall be deemed or construed to limit any Holder’s actions pursuant to the applicable procedures of
the Depositary so long as the Notes are issued in global form.

ARTICLE X

Supplemental Indentures

Section 10.01 Supplemental Indentures Without Consent of Holders. The Company, when
authorized by the resolutions of the Board of Directors and the Trustee, at the Company’s expense,
may from time to time and at any time enter into an indenture or indentures supplemental hereto for
one or more of the following purposes:

(a) to cure any ambiguity, omission, defect or inconsistency in this Indenture as evidenced by
an Officer’s Certificate;

(b) to provide for the assumption by a Successor Company of the obligations of the Company
under this Indenture pursuant to Article XI;

(c) to add guarantees with respect to the Notes;

(d) to secure the Notes;

(e) to add to the covenants for the benefit of the Holders or surrender any right or power
conferred upon the Company;

(f) to make any change that does not adversely affect the rights of any Holder;

(g) to increase the Conversion Rate as provided in this Indenture;

(h) to irrevocably elect a Settlement Method or a Specified Dollar Amount;

(i) to conform this Indenture to the requirements of the Trust Indenture Act as then in
effect;

(j) to provide for the acceptance of appointment by a successor trustee pursuant to
Section 7.09 or to facilitate the administration of the trusts by more than one trustee; or

(k) to conform the provisions of this Indenture, or the Notes, to the “Description of Notes”
in the Original Offering Memorandum, to the extent such provision in the “Description of Notes” was
intended to be a verbatim recitation of a provision of this Indenture, as evidenced by an Officer’s
Certificate.

Upon the written request of the Company, the Trustee is hereby authorized to join with the
Company in the execution of any such supplemental indenture, to make any further appropriate
agreements and stipulations that may be therein contained, but the Trustee shall not be obligated
to, but may in its discretion, enter into any supplemental indenture that affects the Trustee’s own
rights, duties or immunities under this Indenture or otherwise.

Any supplemental indenture authorized by the provisions of this Section 10.01 may be executed
by the Company and the Trustee without the consent of the Holders of any of the Notes at the time
outstanding, notwithstanding any of the provisions of Section 10.02.

Section 10.02 Supplemental Indentures with Consent of Holders. With the consent (evidenced as
provided in Article VIII) of the Holders of at least a majority of the aggregate principal amount
of Notes then outstanding (determined in accordance with Article VIII and including, without
limitation, consents obtained in connection with a repurchase of, or tender or exchange offer for,
Notes), the Company, when authorized by the resolutions of the Board of Directors and the Trustee,
at the Company’s expense, may from time to time and at any time enter into an indenture or
indentures supplemental hereto for the purpose of adding any provisions to or changing in any
manner or eliminating any of the provisions of this Indenture or any supplemental indenture or of
modifying in any manner the rights of the Holders; provided, however, that, without the consent of
each Holder of an outstanding Note affected, no such supplemental indenture shall:

(a) reduce the amount of Notes whose Holders must consent to an amendment;

(b) reduce the rate of or extend the stated time for payment of interest (other than
Additional Interest) on any Note;

(c) reduce the principal of or extend the Maturity Date of any Note;

(d) make any change that adversely affects the conversion rights of any Notes;

(e) reduce the Fundamental Change Repurchase Price of any Note or amend or modify in any
manner adverse to the Holders the Company’s obligation to make such payments, whether through an
amendment or waiver of provisions in the covenants, definitions or otherwise;

(f) make any Note payable in money other than that stated in the Note;

(g) change the ranking of the Notes;

(h) impair the right of any Holder to receive payment of principal of (including the
Fundamental Change Repurchase Price, if applicable) and interest on such Holder’s Notes on or after
the due dates therefor or to institute suit for the enforcement of any payment on or with respect
to such Holder’s Note;

(i) make any change in this Article X that requires each Holder’s consent or in the waiver
provisions in Section 6.01 or Section 6.09; or

Upon the written request of the Company, and upon the filing with the Trustee of evidence of
the consent of Holders as aforesaid and subject to Section 10.05, the Trustee shall join with the
Company in the execution of such supplemental indenture unless such supplemental indenture affects
the Trustee’s own rights, duties or immunities under this Indenture or otherwise, in which case the
Trustee may in its discretion, but shall not be obligated to, enter into such supplemental
indenture.

Holders do not need, under this Section 10.02, to approve the particular form of any proposed
supplemental indenture. It shall be sufficient if such Holders approve the substance thereof.
After any such supplemental indenture becomes effective, the Company shall mail to the Holders a
notice briefly describing such supplemental indenture. However, the failure to give such notice to
all the Holders, or any defect in the notice, will not impair or affect the validity of the
supplemental indenture.

Section 10.03 Effect of Supplemental Indentures. Upon the execution of any supplemental
indenture pursuant to the provisions of this Article X, this Indenture shall be and be deemed to be
modified and amended in accordance therewith and the respective rights, limitation of rights,
obligations, duties and immunities under this Indenture of the Trustee, the Company and the Holders
shall thereafter be determined, exercised and enforced hereunder subject in all respects to such
modifications and amendments and all the terms and conditions of any such supplemental indenture
shall be and be deemed to be part of the terms and conditions of this Indenture for any and all
purposes.

Section 10.04 Notation on Notes. Notes authenticated and delivered after the execution of any
supplemental indenture pursuant to the provisions of this Article X may, at the Company’s expense,
bear a notation in form approved by the Trustee as to any matter provided for in such supplemental
indenture. If the Company or the Trustee shall so determine, new Notes so modified as to conform,
in the opinion of the Trustee and the Board of Directors, to any modification of this Indenture
contained in any such supplemental indenture may, at the Company’s expense, be prepared and
executed by the Company, authenticated by the Trustee (or an authenticating agent duly appointed by
the Trustee pursuant to Section 16.10) and delivered in exchange for the Notes then outstanding,
upon surrender of such Notes then outstanding.

Section 10.05 Evidence of Compliance of Supplemental Indenture to Be Furnished Trustee. In
addition to the documents required by Section 16.05, the Trustee shall receive and shall be fully
protected in conclusively relying upon an Officer’s Certificate and an Opinion of Counsel as
conclusive evidence that any supplemental indenture executed pursuant hereto complies with the
requirements of this Article X, is permitted or authorized by this Indenture, such Opinion of
Counsel to include a customary legal opinion as to the enforceability under New York law of such
supplemental indenture, which opinion may contain customary exceptions and qualifications.

ARTICLE XI

Consolidation, Merger, Sale, Conveyance and Lease

Section 11.01 Company May Consolidate, Etc. on Certain Terms. Subject to the provisions
of Section 11.03, the Company shall not consolidate with, merge with or into, or sell, convey,
transfer or lease all or substantially all of its properties and assets to another Person, as the
case may be, unless:

(a) the resulting, surviving or transferee Person (the “Successor Company”), if not the
Company, shall be a corporation organized and existing under the laws of the United States of
America, any State thereof or the District of Columbia, and the Successor Company (if not the
Company) shall expressly assume all of the obligations of the Company under the Notes and this
Indenture; and

(b) immediately after giving effect to such transaction, no Default or Event of Default shall
have occurred and be continuing under this Indenture; and

(c) the Company has delivered to the Trustee the Officer’s Certificate and Opinion of Counsel
pursuant to Section 11.04.

For purposes of this Section 11.01, the sale, conveyance, transfer or lease of the properties
and assets of one or more Subsidiaries of the Company substantially as an entirety to another
Person, which properties and assets, if held by the Company instead of such Subsidiaries, would
constitute the properties and assets of the Company substantially as an entirety on a consolidated
basis, shall be deemed to be the sale, conveyance, transfer or lease of the properties and assets
of the Company substantially as an entirety to another Person.

Section 11.02 [Reserved]

Section 11.03 Successor Corporation to Be Substituted. In case of any such consolidation,
merger, sale, conveyance, transfer or lease and upon the assumption by the Successor Company, as
the case may be, of the due and punctual payment of the principal of and accrued and unpaid
interest on all of the Notes, the due and punctual delivery or payment, as the case may be, of any
consideration due upon conversion of the Notes and the due and punctual performance of all of the
covenants and conditions of this Indenture to be performed by the Company, such Successor Company
(if not the Company, as the case may be) shall succeed to, and may exercise every right and power
of, the Company, as the case may be, under this Indenture, and the Company, as the case may be,
will be discharged from the obligations of the Company under the Notes and this Indenture, as
applicable, except in the case of any such lease.

Such Successor Company thereupon may cause to be signed, and may issue either in its own name
or in the name of the Company any or all of the Notes issuable hereunder which theretofore shall
not have been signed by the Company and delivered to the Trustee; and, upon the order of such
Successor Company instead of the Company and subject to all the terms, conditions and limitations
in this Indenture prescribed, the Trustee shall authenticate and shall deliver, or cause to be
authenticated and delivered, any Notes that previously shall have been signed and delivered by the
Officers of the Company to the Trustee for authentication, and any Notes that such Successor
Company thereafter shall cause to be signed and delivered to the Trustee for that purpose. All the
Notes so issued shall in all respects have the same legal rank and benefit under this Indenture as
the Notes theretofore or thereafter issued in accordance with the terms of this Indenture as though
all of such Notes had been issued at the date of the execution hereof. In the event of any such
consolidation, merger, sale, conveyance or transfer (but not in the case of a lease), upon
compliance with this Article XI the Person named as the “Company” in the first paragraph of this
Indenture (or any successor that shall thereafter have become such in the manner prescribed in this
Article XI) may be dissolved, wound up and liquidated at any time thereafter and, except in the
case of a lease, such Person shall be released from its liabilities as obligor and maker of the
Notes and from its obligations under this Indenture and the Notes.

In case of any such consolidation, merger, sale, conveyance, transfer or lease, such changes
in phraseology and form (but not in substance) may be made in the Notes thereafter to be issued as
may be appropriate.

Section 11.04 Evidence to Be Given to Trustee. No consolidation, merger, sale, conveyance,
transfer or lease pursuant to this Article XI shall be effective unless the Trustee shall receive
an Officer’s Certificate and an Opinion of Counsel as conclusive evidence that any such
consolidation, merger, sale, conveyance, transfer or lease and any such assumption and, if a
supplemental indenture is required in connection with such transaction, such supplemental
indenture, complies with the provisions of this Article XI.

ARTICLE XII

No Personal Liability of Directors, Officers, Employees or Stockholders

Section 12.01 Indenture and Notes Solely Corporate Obligations. None of the Company’s
past, present or future directors, officers, employees or stockholders, as such, will have any
liability for any of the obligations under the Notes or this Indenture or for any claim based on,
or in respect or by reason of, such obligations or their creation. By accepting a Note, each
Holder waives and releases all such liability. This waiver and release is part of the
consideration for the issue of the Notes.

ARTICLE XIII

Conversion of Notes

Section 13.01 Conversion Privilege. (a) Subject to and upon compliance with the
provisions of this Article XIII, each Holder of a Note shall have the right, at such Holder’s
option, to convert all or any portion (if the portion to be converted is $1,000 principal amount or
an integral multiple thereof) of such Note (i) subject to satisfaction of the conditions described
in Section 13.01(b), at any time prior to the close of business on the Business Day immediately
preceding February 1, 2020, under the circumstances and during the periods set forth in
Section 13.01(b), and (ii) irrespective of the conditions described in Section 13.01(b), on or
after February 1, 2020, and prior to the close of business on the second Scheduled Trading Day
immediately preceding the Maturity Date, in each case, at an initial conversion rate of 15.2172
shares of Common Stock (subject to adjustment as provided in Section 13.04, the “Conversion Rate”)
per $1,000 principal amount of Notes (subject to the settlement provisions of Section 13.02, the
“Conversion Obligation”).

(b) (i) Prior to the close of business on the Business Day immediately preceding February 1,
2020, the Notes may be surrendered for conversion during the five Business-Day period immediately
after any ten consecutive Trading-Day period (the “Measurement Period”) in which the Trading Price
per $1,000 principal amount of Notes, as determined following a request by a Holder of Notes in
accordance with this subsection (b)(i), for each Trading Day of the Measurement Period was less
than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate
on each such Trading Day. The Trading Prices shall be determined by the Bid Solicitation Agent
pursuant to this subsection (b)(i) and the definition of Trading Price set forth in this Indenture.
The Company shall provide written notice to the Bid Solicitation Agent (if other than the Company)
of the three independent nationally recognized securities dealers selected by the Company pursuant
to the definition of Trading Price, along with appropriate contact information for each. The Bid
Solicitation Agent (if other than the Company) shall have no obligation to determine the Trading
Price per $1,000 principal amount of Notes unless the Company has requested such determination, and
the Company shall have no obligation to make such request (or, if the Company is acting as Bid
Solicitation Agent, the Company shall have no obligation to determine the Trading Price per $1,000
principal amount of Notes) unless a Holder of at least $5,000,000 aggregate principal amount of
Notes provides the Company with reasonable evidence that the Trading Price per $1,000 principal
amount of Notes would be less than 98% of the product of the Last Reported Sale Price of the Common
Stock and the Conversion Rate, at which time the Company shall instruct the Bid Solicitation Agent
(if other than the Company) to determine, or if the Company is acting as Bid Solicitation Agent,
the Company shall determine, the Trading Price per $1,000 principal amount of Notes beginning on
the next Trading Day and on each successive Trading Day until the Trading Price per $1,000
principal amount of Notes is greater than or equal to 98% of the product of the Last Reported Sale
Price of the Common Stock and the Conversion Rate. If (x) the Company is not acting as Bid
Solicitation Agent, and the Company does not instruct the Bid Solicitation Agent to determine the
Trading Price per $1,000 principal amount of Notes when obligated as provided in the preceding
sentence, or if the Company instructs the Bid Solicitation Agent to obtain bids and the Bid
Solicitation Agent fails to make such determination, or (y) the Company is acting as Bid
Solicitation Agent and the Company fails to make such determination when obligated as provided in
the preceding sentence, then, in either case, the Trading Price per $1,000 principal amount of
Notes shall be deemed to be less than 98% of the product of the Last Reported Sale Price of the
Common Stock and the Conversion Rate on each Trading Day of such failure. If the Trading Price
condition set forth above has been met, the Company shall so notify the Holders, the Trustee and
the Conversion Agent (if other than the Trustee) in writing. If, at any time after the Trading
Price condition set forth above has been met, the Trading Price per $1,000 principal amount of
Notes is greater than or equal to 98% of the product of the Last Reported Sale Price of the Common
Stock and the applicable Conversion Rate, the Company shall so notify the Holders of the Notes, the
Trustee and the Conversion Agent (if other than the Trustee) in writing.

(ii) If, prior to the close of business on the Business Day immediately preceding February 1,
2020, the Company elects to:

(A) issue to all or substantially all holders of its Common Stock any rights, options or
warrants entitling them, for a period of not more than 45 calendar days after the announcement date
of such issuance, to subscribe for or purchase shares of its Common Stock at a price per share that
is less than the average of the Last Reported Sale Prices of the Common Stock for the 10
consecutive Trading-Day period ending on, and including, the Trading Day immediately preceding the
date of announcement of such issuance; or

(B) distribute to all or substantially all holders of its Common Stock the Company’s assets,
debt securities or rights to purchase securities of the Company, which distribution has a per share
value, as reasonably determined by the Board of Directors, exceeding 10% of the Last Reported Sale
Price of the Common Stock on the Trading Day preceding the date of announcement for such
distribution,

then, in either case, the Company shall notify all Holders of the Notes, the Trustee and the
Conversion Agent (if other than the Trustee) at least 45 Scheduled Trading Days prior to the
Ex-Dividend Date for such issuance or distribution. Once the Company has given such notice, the
Notes may be surrendered for conversion at any time until the earlier of (1) the close of business
on the Business Day immediately preceding the Ex-Dividend Date for such issuance or distribution
and (2) the Company’s announcement that such issuance or distribution will not take place, even if
the Notes are not otherwise convertible at such time. For purposes of this Section 13.01(b)(ii)(A)
and Section 13.04(b), in determining whether any rights, options or warrants entitle the holders to
subscribe for or purchase shares of the Common Stock at less than such average of the Last Reported
Sale Prices of the Common Stock for the 10 consecutive Trading-Day period ending on, and including,
the Trading Day immediately preceding the date of announcement for such issuance, and in
determining the aggregate offering price of such shares of Common Stock, there shall be taken into
account any consideration received by the Company for such rights, options or warrants and any
amount payable on exercise or conversion thereof, the value of such consideration, if other than
cash, to be determined by the Board of Directors.

(iii) If a transaction or event that (x) constitutes a Fundamental Change occurs, (y)
constitutes a Make-Whole Fundamental Change occurs or (z) if the Company is a party to a
consolidation, merger, binding share exchange, or transfer or lease of all or substantially all of
the Company’s assets, pursuant to which the Common Stock would be converted into cash, securities
or other assets not set forth in (x) and (y) above, in each case prior to the close of business on
the Business Day immediately preceding February 1, 2020, regardless of whether a Holder has the
right to require the Company to repurchase the Notes pursuant to Section 14.01, then the Notes may
be surrendered for conversion at any time from or after the effective date of the transaction or
event until the earlier of (A) 35 Trading Days after the actual effective date of such transaction
or event (or, if later, the date on which the Company provides notice of such transaction or event)
or, if such transaction or event also constitutes a Fundamental Change, until the related
Fundamental Change Repurchase Date, and (B) the second Scheduled Trading Day immediately preceding
the Maturity Date. The Company shall notify Holders, the Trustee and the Conversion Agent (if
other than the Trustee) in writing as promptly as practicable following the date the Company
publicly announces such transaction or event and in no event later than the actual effective date
of such transaction or event.

(iv) Prior to the close of business on the Business Day immediately preceding February 1,
2020, the Notes may be surrendered for conversion during any calendar quarter commencing after the
calendar quarter ending on September 30, 2013 (and only during such calendar quarter), if the Last
Reported Sale Price of the Common Stock for at least 20 Trading Days (whether or not consecutive)
during the period of 30 consecutive Trading Days ending on the last Trading Day of the immediately
preceding calendar quarter is greater than 130% of the Conversion Price on each applicable Trading
Day. Neither the Trustee nor the Conversion Agent shall have any duty to monitor such sale price.

Section 13.02 Conversion Procedure; Settlement Upon Conversion.

(a) Except as provided in Section 13.03(b) and Section 13.07(a), upon conversion of any Note,
the Company shall pay or deliver, as the case may be, cash (“Cash Settlement”), shares of Common
Stock, together with cash, if applicable, in lieu of delivering any fractional share of Common
Stock in accordance with subsection (j) of this Section 13.02 (“Physical Settlement”) or a
combination of cash and shares of Common Stock, together with cash, if applicable, in lieu of
delivering any fractional share of Common Stock in accordance with subsection (j) of this
Section 13.02 (“Combination Settlement”), at the Company’s election, as the case may be, as
described below.

(i) All conversions occurring on or after February 1, 2020, shall be settled using the same
Settlement Method. Prior to February 1, 2020, the Company shall use the same Settlement Method for
all conversions occurring on the same Conversion Date, but the Company shall not have any
obligation to use the same Settlement Method with respect to conversions that occur on different
Conversion Dates. If the Company elects a Settlement Method, the Company shall inform converting
Holders in writing, through the Trustee upon its receipt of a written instruction from the Company
to send such notification, of the Settlement Method it has selected (the “Settlement Notice”) no
later than the close of business on the Trading Day immediately following the related Conversion
Date (or, in the case of any conversions occurring on or after February 1, 2020, no later than the
close of business on the Scheduled Trading Day immediately preceding February 1, 2020. If the
Company does not so elect a Settlement Method prior to the deadline set forth in the immediately
preceding sentence, the Company shall no longer have the right to elect Cash Settlement or Physical
Settlement and the Company shall be deemed to have elected Combination Settlement in respect to its
Conversion Obligation, and the Specified Dollar Amount per $1,000 principal amount of Notes will be
equal to $1,000. If the Company elects Combination Settlement, but does not timely notify
converting holders of the Specified Dollar Amount per $1,000 principal amount of Notes, such
Specified Dollar Amount will be deemed to be $1,000.

At any time on or prior to the 42nd scheduled Trading Day prior to the Maturity Date, the
Company may irrevocably elect (a “Net Share Settlement Election”) to satisfy the conversion
obligation with respect to any Notes to be converted after the date of such election through
Combination Settlement with a Specified Dollar Amount of $1,000 per $1,000 principal amount of
Notes. The Company may make a Net Share Settlement Election at its sole discretion without the
consent of the Holders. Upon making a Net Share Settlement Election, the Company will promptly (i)
use reasonable efforts to post such information on its website or otherwise publicly disclose such
information and (ii) provide written notice to the Holders by mailing such notice to Holders at
their address in the Register (in the case of a Physical Note), or through the facilities of the
Depositary (in the case of a Global Note).

(ii) The cash, shares of Common Stock or combination of cash and shares of Common Stock in
respect of any conversion of Notes (the “Settlement Amount”) shall be computed as follows:

(A) If the Company elects Physical Settlement, the Company will deliver to converting holdings
in respect of each $1,000 principal amount of notes being converted a number of shares of the
Company’s Common Stock equal to the Conversion Rate;

(B) If the Company elects Cash Settlement, the Company will pay to converting holders in
respect of each $1,000 principal amount of notes being converted cash in an amount equal to the sum
of the Daily Conversion Values for each of the 40 consecutive Trading Days in the relevant
Observation Period; and

(C) If the Company elects (or is deemed to have elected) Combination Settlement, the Company
will pay or deliver, as the case may be, to converting holders in respect of each $1,000 principal
amount of Notes being converted a Settlement Amount equal to the sum of the Daily Settlement
Amounts for each of the 40 consecutive Trading Days in the relevant Observation Period.

(iii) The Daily Settlement Amounts (if applicable) and the Daily Conversion Values (if
applicable) shall be determined by the Company promptly following the last day of the applicable
Observation Period. Promptly after such determination of the Daily Settlement Amounts or the Daily
Conversion Values, as the case may be, and the amount of cash payable in lieu of any fractional
share, the Company shall notify the Trustee and the Conversion Agent (if other than the Trustee) in
writing of the Daily Settlement Amounts or the Daily Conversion Values, as the case may be, and the
amount of cash payable in lieu of fractional shares of Common Stock. The Trustee and the
Conversion Agent (if other than the Trustee) shall have no responsibility for any such
determination.

(b) Subject to Section 13.02(e), before any Holder of a Note shall be entitled to convert a
Note as set forth above, such Holder shall (i) in the case of a Global Note, comply with the
procedures of the Depositary in effect at that time and, if required, pay funds equal to interest
payable on the next Interest Payment Date to which such Holder is not entitled as set forth in
Section 13.02(h) and, if required, pay all transfer and similar taxes, if any as provided in
Sections 13.02(d) or (e), and (ii) in the case of a Physical Note (1) complete, manually sign and
deliver an irrevocable notice to the Conversion Agent as set forth in the Form of Notice of
Conversion (or a facsimile thereof) (a “Notice of Conversion”) at the office of the Conversion
Agent and state in writing therein the principal amount of Notes to be converted and the name or
names (with addresses) in which such Holder wishes the certificate or certificates for any shares
of Common Stock to be delivered upon settlement of the Conversion Obligation to be registered, (2)
surrender such Notes, duly endorsed to the Company or in blank (and accompanied by appropriate
endorsement and transfer documents), at the office of the Conversion Agent, (3) if required,
furnish appropriate endorsements and transfer documents, (4) if required, pay all transfer or
similar taxes and (5) if required, pay funds equal to interest payable on the next Interest Payment
Date to which such Holder is not entitled as set forth in Section 13.02(h). The Trustee (and, if
different, the Conversion Agent) shall notify the Company of any conversion pursuant to this
Article XIII on the Conversion Date for such conversion. No Notice of Conversion with respect to
any Notes may be surrendered by a Holder thereof if such Holder has also delivered a Fundamental
Change Repurchase Notice to the Company in respect of such Notes and not validly withdrawn such
Fundamental Change Repurchase Notice in accordance with Section 14.02. Nothing herein shall
preclude any withholding of tax required by law.

If more than one Note shall be surrendered for conversion at one time by the same Holder, the
Conversion Obligation with respect to such Notes shall be computed on the basis of the aggregate
principal amount of the Notes (or specified portions thereof to the extent permitted thereby) so
surrendered.

(c) A Note shall be deemed to have been converted immediately prior to the close of business
on the date (the “Conversion Date”) that the Holder has complied with the requirements set forth in
subsection (b) above. The Company shall pay or deliver, as the case may be, the consideration due
in respect of the Conversion Obligation on the third Business Day immediately following the
relevant Conversion Date, if the Company elects Physical Settlement, or on the third Business Day
immediately following the last Trading Day of the Observation Period, in the case of any other
Settlement Method; provided that, for any Conversion Date on or after February 1, 2020 for which
Physical Settlement is applicable, settlement will occur on the Maturity Date. If any shares of
Common Stock are due to converting Holders, the Company shall issue or cause to be issued, and
deliver to the Conversion Agent or to such Holder, or such Holder’s nominee or nominees,
certificates or a book-entry transfer through the Depositary for the full number of shares of
Common Stock to which such Holder shall be entitled in satisfaction of the Company’s Conversion
Obligation.

(d) In case any Note shall be surrendered for partial conversion, the Company shall execute
and the Trustee shall authenticate and deliver to or upon the written order of the Holder of the
Note so surrendered a new Note or Notes in authorized denominations in an aggregate principal
amount equal to the unconverted portion of the surrendered Note, without payment of any service
charge by the converting Holder but with payment of a sum sufficient to cover any transfer tax or
similar governmental charge required by law or that may be imposed in connection therewith as a
result of the name of the Holder of the new Notes issued upon such conversion being different from
the name of the Holder of the old Notes surrendered for such conversion.

(e) If a Holder submits a Note for conversion, the Company shall pay any documentary, stamp or
similar issue or transfer tax due on the issue of any shares of Common Stock upon conversion,
unless the tax is due because the Holder requests such shares to be issued in a name other than the
Holder’s name, in which case the Holder shall pay that tax. The Conversion Agent may refuse to
deliver the certificates representing the shares of Common Stock being issued in a name other than
the Holder’s name until the Trustee receives a sum sufficient to pay any tax that is due by such
Holder in accordance with the immediately preceding sentence.

(f) Except as provided in Section 13.04, no adjustment shall be made for dividends on any
shares issued upon the conversion of any Note as provided in this Article XIII.

(g) Upon the conversion of an interest in a Global Note, the Trustee, or the Custodian at the
direction of the Trustee, shall make a notation on such Global Note as to the reduction in the
principal amount represented thereby. The Company shall notify the Trustee in writing of any
conversion of Notes effected through any Conversion Agent other than the Trustee.

(h) Upon conversion, a Holder shall not receive any separate cash payment for accrued and
unpaid interest, if any, except as set forth below. The Company’s settlement of the Conversion
Obligation shall be deemed to satisfy in full its obligation to pay the principal amount of the
Note and accrued and unpaid interest, if any, to, but excluding, the relevant Conversion Date. As
a result, accrued and unpaid interest, if any, to, but excluding, such Conversion Date shall be
deemed to be paid in full rather than cancelled, extinguished or forfeited. Upon a conversion of
Notes into a combination of cash and shares of the Company’s Common Stock, accrued and unpaid
interest will be deemed to be paid first out of the cash paid upon such conversion.
Notwithstanding the foregoing, if Notes are converted after the close of business on a Regular
Record Date, Holders of such Notes as of the close of business on such Regular Record Date will
receive the full amount of interest payable on such Notes on the corresponding Interest Payment
Date notwithstanding the conversion. Notes surrendered for conversion during the period from the
close of business on any Regular Record Date to the open of business on the immediately following
Interest Payment Date must be accompanied by funds equal to the amount of interest payable on the
Notes so converted; provided that no such payment shall be required (1) for conversions following
the Regular Record Date immediately preceding the Maturity Date; (2) if the Company has specified a
Fundamental Change Repurchase Date that is after a Regular Record Date and on or prior to the
Business Day immediately following the corresponding Interest Payment Date; or (3) to the extent of
any Defaulted Amounts, if any Defaulted Amounts exists at the time of conversion with respect to
such Note. Therefore, for the avoidance of doubt, all Holders of Notes on the Regular Record Date
immediately preceding the Maturity Date and the Fundamental Change Repurchase Date described in (1)
and (2) of this paragraph will receive the full interest payment due on the Maturity Date or other
applicable Interest Payment Date, regardless of whether their Notes have been converted following
such Regular Record Date.

(i) The Person in whose name the certificate for any shares of Common Stock delivered upon
conversion is registered shall be treated as a stockholder of record as of the close of business on
the relevant Conversion Date (if the Company elects to satisfy the related Conversion Obligation by
Physical Settlement) or the last Trading Day of the relevant Observation Period (if the Company
elects (or is deemed to have elected) to satisfy the related Conversion Obligation by Combination
Settlement), as the case may be, subject to Sections 13.04(c) and 13.04(e). Upon a conversion of
Notes, such Person shall no longer be a Holder of such Notes surrendered for conversion.

(j) The Company shall not issue any fractional share of Common Stock upon conversion of the
Notes and shall instead pay cash in lieu of any fractional share of Common Stock issuable upon
conversion based on, in the case of Combination Settlement, the Daily VWAP on the Last Trading Day
of the applicable Observation Period, or, in the case of Physical Settlement, based on the daily
VWAP on the relevant Conversion Date. For each Note surrendered for conversion, if the Company has
elected (or is deemed to have elected) Combination Settlement, the full number of shares that shall
be issued upon conversion thereof, shall be computed on the basis of the aggregate Daily Settlement
Amounts for the applicable Observation Period, and any fractional shares remaining after such
computation shall be paid in cash.

Section 13.03 Increased Conversion Rate Applicable to Certain Notes Surrendered in Connection
with Make-Whole Fundamental Changes. (a) If a Make-Whole Fundamental Change occurs prior to the
Maturity Date and a Holder elects to convert its Notes in connection with such Make-Whole
Fundamental Change, the Company shall, under the circumstances described below, increase the
Conversion Rate for the Notes so surrendered for conversion by a number of additional shares of
Common Stock (the “Additional Shares”), as described below. A conversion of Notes shall be deemed
for these purposes to be “in connection with” such Make-Whole Fundamental Change if the applicable
Conversion Date occurs during the period from, and including, the Effective Date of the Make-Whole
Fundamental Change up to, and including, the Business Day immediately prior to the related
Fundamental Change Repurchase Date (or, in the case of a Make-Whole Fundamental Change that would
have been a Fundamental Change but for the Majority Ownership Exception, the 35th Trading Day
immediately following the Effective Date of such Make-Whole Fundamental Change).

(b) Upon surrender of Notes for conversion in connection with a Make-Whole Fundamental Change
pursuant to Section 13.01(b)(iii), the Company shall, at its option, satisfy the related Conversion
Obligation by Physical Settlement, Cash Settlement or Combination Settlement in accordance with
Section 13.02 based on the Conversion Rate as increased to reflect the Additional Shares pursuant
to the table below; provided, however, that if, at the effective time of a Make-Whole Fundamental
Change described in clause (b) of the definition of Fundamental Change, the Reference Property
following such Make-Whole Fundamental Change is composed entirely of cash, for any conversion of
Notes following the Effective Date of such Make-Whole Fundamental Change, the Conversion Obligation
shall be calculated based solely on the Stock Price for the transaction and shall be deemed to be
an amount of cash per $1,000 principal amount of converted Notes equal to the Conversion Rate
(including any adjustment for Additional Shares), multiplied by such Stock Price. In such event,
the Conversion Obligation will be determined and shall be paid to Holders in cash on the third
Business Day following the Conversion Date. The Company shall notify the Holders of Notes of the
Effective Date of any Make-Whole Fundamental Change no later than five Business Days after such
Effective Date.

(c) The number of Additional Shares, if any, by which the Conversion Rate shall be increased
shall be determined by reference to the table below, based on the date on which the Make-Whole
Fundamental Change occurs or becomes effective (the “Effective Date”) and the price (the “Stock
Price”) paid (or deemed to be paid) per share of the Common Stock in the Make-Whole Fundamental
Change. If the holders of the Common Stock receive in exchange for their Common Stock only cash in
a Make-Whole Fundamental Change described in clause (b) of the definition of Fundamental Change,
the Stock Price shall be the cash amount paid per share. Otherwise, the Stock Price shall be the
average of the Last Reported Sale Prices of the Common Stock over the ten Trading-Day period ending
on, and including, the Trading Day immediately preceding the Effective Date of the Make-Whole
Fundamental Change. The Board of Directors shall make appropriate adjustments to the Stock Price,
in its good faith determination, to account for any adjustment to the Conversion Rate that becomes
effective, or any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date
of the event occurs, during such five consecutive Trading-Day period.

(d) The Stock Prices set forth in the column headings of the table below shall be adjusted as
of any date on which the Conversion Rate of the Notes is otherwise adjusted. The adjusted Stock
Prices shall equal the Stock Prices applicable immediately prior to such adjustment, multiplied by
a fraction, the numerator of which is the Conversion Rate immediately prior to such adjustment
giving rise to the Stock Price adjustment and the denominator of which is the Conversion Rate as so
adjusted. The number of Additional Shares set forth in the table below shall be adjusted in the
same manner and at the same time as the Conversion Rate as set forth in Section 13.04.

(e) The following table sets forth the number of Additional Shares to be received per $1,000
principal amount of Notes pursuant to this Section 13.03 for each Stock Price and Effective Date
set forth below:

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Stock Price
	Effective Date	 	$ 50.55	 	$60.00	 	$70.00	 	$80.00	 	$90.00	 	$100.00	 	$125.00	 	$150.00	 	$200.00
	August 13, 2013

	 	$	4.5652	 	 	 	3.3262	 	 	 	2.5143	 	 	 	1.9858	 	 	 	1.6213	 	 	 	1.3575	 	 	 	0.9343	 	 	 	0.6793	 	 	 	0.3785	 
	August 1, 2014

	 	$	4.5652	 	 	 	3.0397	 	 	 	2.2463	 	 	 	1.7483	 	 	 	1.4148	 	 	 	1.1773	 	 	 	0.8067	 	 	 	0.5865	 	 	 	0.3274	 
	August 1, 2015

	 	$	4.5652	 	 	 	2.7426	 	 	 	1.9669	 	 	 	1.4992	 	 	 	1.1985	 	 	 	0.9910	 	 	 	0.6766	 	 	 	0.4922	 	 	 	0.2756	 
	August 1, 2016

	 	$	4.5652	 	 	 	2.4584	 	 	 	1.6855	 	 	 	1.2465	 	 	 	0.9809	 	 	 	0.8044	 	 	 	0.5474	 	 	 	0.4001	 	 	 	0.2252	 
	August 1, 2017

	 	$	4.5652	 	 	 	2.1975	 	 	 	1.4027	 	 	 	0.9886	 	 	 	0.7582	 	 	 	0.6166	 	 	 	0.4209	 	 	 	0.3095	 	 	 	0.1753	 
	August 1, 2018

	 	$	4.5652	 	 	 	1.9482	 	 	 	1.0902	 	 	 	0.7057	 	 	 	0.5213	 	 	 	0.4217	 	 	 	0.2894	 	 	 	0.2145	 	 	 	0.1239	 
	August 1, 2019

	 	$	4.5652	 	 	 	1.6783	 	 	 	0.6877	 	 	 	0.3704	 	 	 	0.2643	 	 	 	0.2145	 	 	 	0.1504	 	 	 	0.1125	 	 	 	0.0656	 
	August 1, 2020

	 	$	4.5652	 	 	 	1.4509	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 

(f) The exact Stock Prices and Effective Dates may not be set forth in the table above,
in which case:

(i) if the Stock Price is between two Stock Prices in the table above or the Effective Date is
between two Effective Dates in the table above, the number of Additional Shares shall be determined
by a straight-line interpolation between the number of Additional Shares set forth for the higher
and lower Stock Prices and the earlier and later Effective Dates, as applicable, based on a 365-day
year;

(ii) if the Stock Price is greater than $200.00 per share (subject to adjustment in the same
manner as the Stock Prices set forth in the column headings of the table above pursuant to
subsection (d) above), no Additional Shares shall be added to the Conversion Rate; and

(iii) if the Stock Price is less than $50.55 per share (subject to adjustment in the same
manner as the Stock Prices set forth in the column headings of the table above pursuant to
subsection (d) above), no Additional Shares shall be added to the Conversion Rate.

Notwithstanding the foregoing, in no event shall the Conversion Rate exceed 19.7824 per $1,000
principal amount of Notes, subject to adjustment in the same manner as the Conversion Rate pursuant
to Section 13.04.

(g) Nothing in this Section 13.03 shall prevent an adjustment to the Conversion Rate pursuant
to Section 13.04 in respect of a Make-Whole Fundamental Change.

Section 13.04 Adjustment of Conversion Rate. The Conversion Rate shall be adjusted from time
to time by the Company if any of the following events occurs, except that the Company shall not
make any adjustments to the Conversion Rate if Holders of the Notes participate (other than in the
case of a share split or share combination), at the same time and upon the same terms as holders of
the Common Stock and solely as a result of holding the Notes, in any of the transactions described
in this Section 13.04, without having to convert their Notes, as if they held a number of shares of
Common Stock equal to the Conversion Rate, multiplied by the principal amount (expressed in
thousands) of Notes held by such Holder.

(a) If the Company exclusively issues shares of Common Stock as a dividend or distribution on
shares of its Common Stock, or if the Company effects a share split or share combination, the
Conversion Rate shall be adjusted based on the following formula:

CR’ = CR0 × (OS’/OS0)

where,

	 	 	CR0=the Conversion Rate in effect immediately prior to the open of business on the
Ex-Dividend Date of such dividend or distribution, or immediately prior to the open of
business on the Effective Date of such share split or share combination, as applicable;

	 	 	CR’=the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date
or Effective Date;

	 	 	OS0=the number of shares of Common Stock outstanding immediately prior to the open of
business on such Ex-Dividend Date or Effective Date; and

	 	 	OS’=the number of shares of Common Stock outstanding immediately after giving effect to such
dividend, distribution, share split or share combination.

Any adjustment made under this Section 13.04(a) shall become effective immediately after the open
of business on the Ex-Dividend Date for such dividend or distribution, or immediately after the
open of business on the Effective Date for such share split or share combination, as applicable.
If any dividend or distribution of the type described in this Section 13.04(a) is declared but not
so paid or made, the Conversion Rate shall be immediately readjusted, effective as of the date the
Board of Directors determines not to pay such dividend or distribution, to the Conversion Rate that
would then be in effect if such dividend or distribution had not been declared.

(b) If the Company issues to all or substantially all holders of its Common Stock any rights,
options or warrants entitling them, for a period of not more than 45 calendar days after the
announcement date of such issuance, to subscribe for or purchase shares of the Common Stock at a
price per share that is less than the average of the Last Reported Sale Prices of the Common Stock
for the 10 consecutive Trading-Day period ending on, and including, the Trading Day immediately
preceding the date of announcement of such issuance, the Conversion Rate shall be increased based
on the following formula:

CR’ = CR0 × ((OS0+X)/(OS0+Y))

where,

	 	 	CR0=the Conversion Rate in effect immediately prior to the open of business on the
Ex-Dividend Date for such issuance;

	 	 	CR’=the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date;

	 	 	OS0=the number of shares of Common Stock outstanding immediately prior to the open of
business on such Ex-Dividend Date;

	 	 	X=the total number of shares of Common Stock issuable pursuant to such rights, options or
warrants; and

	 	 	Y=the number of shares of Common Stock equal to the aggregate price payable to exercise such
rights, options or warrants, divided by the average of the Last Reported Sale Prices of the
Common Stock over the 10 consecutive Trading-Day period ending on, and including, the Trading
Day immediately preceding the date of announcement of the issuance of such rights, options or
warrants.

Any increase made under this Section 13.04(b) shall be made successively whenever any such rights,
options or warrants are issued and shall become effective immediately after the open of business on
the Ex-Dividend Date for such issuance. To the extent that shares of the Common Stock are not
delivered after the expiration of such rights, options or warrants, the Conversion Rate shall be
decreased to the Conversion Rate that would then be in effect had the increase with respect to the
issuance of such rights, options or warrants been made on the basis of delivery of only the number
of shares of Common Stock actually delivered. If such rights, options or warrants are not so
issued, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect
if such Ex-Dividend Date for such issuance had not occurred.

For purposes of this Section 13.04(b) and Section 13.01(b)(ii)(A), in determining whether any
rights, options or warrants entitle the holders to subscribe for or purchase shares of the Common
Stock at less than such average of the Last Reported Sale Prices of the Common Stock for the 10
consecutive Trading-Day period ending on, and including, the Trading Day immediately preceding the
date of announcement for such issuance, and in determining the aggregate offering price of such
shares of Common Stock, there shall be taken into account any consideration received by the Company
for such rights, options or warrants and any amount payable on exercise or conversion thereof, the
value of such consideration, if other than cash, to be determined by the Board of Directors.

(c) If the Company distributes shares of its Capital Stock, evidences of its indebtedness,
other assets or property or rights, options or warrants to acquire its Capital Stock or other
securities, to all or substantially all holders of the Common Stock, excluding (i) dividends,
distributions or issuances as to which an adjustment was effected pursuant to Section 13.04(a) or
Section 13.04(b), (ii) dividends or distributions paid exclusively in cash as to which an
adjustment was effected pursuant to Section 13.04(d), (iii) distributions of Reference Property in
a transaction described in Section 13.07; and (iv) Spin-Offs as to which the provisions set forth
below in this Section 13.04(c) shall apply (any of such shares of Capital Stock, evidences of
indebtedness, other assets or property or rights, options or warrants to acquire Capital Stock or
other securities of the Company, the “Distributed Property”), then the Conversion Rate shall be
increased based on the following formula:

CR’ = CR0 × (SP0/(SP0-FMV))

where,

	 	 	CR0=the Conversion Rate in effect immediately prior to the open of business on the
Ex-Dividend Date for such distribution;

	 	 	CR’=the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date;

	 	 	SP0=the average of the Last Reported Sale Prices of the Common Stock over the 10
consecutive Trading-Day period ending on, and including, the Trading Day immediately preceding
the Ex-Dividend Date for such distribution; and

	 	 	FMV=the fair market value (as determined by the Board of Directors) of the Distributed Property
with respect to each outstanding share of the Common Stock on the Ex-Dividend Date for such
distribution.

Any increase made under the portion of this Section 13.04(c) above shall become effective
immediately after the open of business on the Ex-Dividend Date for such distribution.

Notwithstanding the foregoing, if “FMV” (as defined above) is equal to or greater than
“SP0” (as defined above), in lieu of the foregoing increase, each Holder of a Note shall
receive, in respect of each $1,000 principal amount thereof, at the same time and upon the same
terms as holders of the Common Stock receive the Distributed Property, the amount and kind of
Distributed Property such Holder would have received if such Holder owned a number of shares of
Common Stock equal to the Conversion Rate in effect on the Ex-Dividend Date for the distribution.
If the Board of Directors determines the “FMV” (as defined above) of any distribution for purposes
of this Section 13.04(c) by reference to the actual or when-issued trading market for any
securities, it shall in doing so consider the prices in such market over the same period used in
computing the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading-Day
period ending on, and including, the Trading Day immediately preceding the Ex-Dividend Date for
such distribution.

With respect to an adjustment pursuant to this Section 13.04(c) where there has been a payment
of a dividend or other distribution on the Common Stock of shares of Capital Stock of any class or
series, or similar equity interest, of or relating to a Subsidiary or other business unit of the
Company, that are, or, when issued, will be, listed or admitted for trading on a U.S. national
securities exchange (a “Spin-Off”), the Conversion Rate shall be increased based on the following
formula:

	 	 	 
	where,
	 	CR’ = CR0 × ((FMV0+MP0)/MP0)

	CR0=the Conversion Rate in effect immediately prior to the close of business on the Effective Date of the Spin-Off;
	CR’=the Conversion Rate in effect immediately after the close of business on the Effective Date of the Spin-Off;
	FMV0=
	 	the average of the Last Reported Sale Prices of the Capital Stock or similar equity interest distributed to

holders of the Common Stock applicable to one share of the Common Stock (determined by reference to the

definition of Last Reported Sale Price as set forth in Section 1.01 as if references therein to Common Stock

were to such Capital Stock or similar equity interest) over the first 10 consecutive Trading-Day period

after, and including, the Ex-Dividend Date of the Spin-Off (the “Valuation Period”); and

	 	 	MP0=the average of the Last Reported Sale Prices of the Common Stock over the Valuation
Period.

The adjustment to the Conversion Rate under the preceding paragraph will be calculated as of
the open of business on the last Trading Day of the Valuation Period, but shall be given effect as
of the close of business on the Effective Date of the Spin-Off. If the Conversion Date (in the
case of Physical Settlement) or the last Trading Day of an Observation Period (in the case of Cash
Settlement or Combination Settlement) occurs during the related Valuation Period, the Company will
pay or deliver, as the case may be, the cash, shares of its Common Stock or a combination of cash
and shares of its Common Stock, if any, on the third Business Day immediately following the last
day of the Valuation Period, and the Person in whose name the certificate for any shares of Common
Stock delivered upon conversion is registered shall be treated as a stockholder of record as of the
close of business on the last Trading Day of the Valuation Period. If any distribution of the type
described in this Section 13.04(c) is declared but not so made, the conversion rate shall be
immediately readjusted, effective as of the date the Board of Directors or a committee thereof
determines not to make such distribution, to the conversion rate that would then be in effect if
such distribution had not been declared.

(d) If any cash dividend or distribution is made to all or substantially all holders of the
Common Stock, the Conversion Rate shall be adjusted based on the following formula:

CR’ = CR0 × (SP0/(SP0-C))

where,

	 	 	CR0=the Conversion Rate in effect immediately prior to the open of business on the
Ex-Dividend Date for such dividend or distribution;

	 	 	CR’=the Conversion Rate in effect immediately after the open of business on the Ex-Dividend Date
for such dividend or distribution;

	 	 	SP0=the average of the Last Reported Sale Prices of the Common Stock over the 10
consecutive Trading Day period ending on, and including, the Trading Day immediately preceding
the Ex-Dividend Date for such dividend or distribution; and

	 	 	C=the amount in cash per share the Company distributes to all or substantially all holders of its
Common Stock.

Any increase pursuant to this Section 13.04(d) shall become effective immediately after the
open of business on the Ex-Dividend Date for such dividend or distribution. If such dividend or
distribution is not so paid, the Conversion Rate shall be decreased, effective as of the date the
Board of Directors determines not to make or pay such dividend or distribution, to be the
Conversion Rate that would then be in effect if such dividend or distribution had not been
declared.

Notwithstanding the foregoing, if “C” (as defined above) is equal to or greater than
“SP0” (as defined above), in lieu of the foregoing increase, each Holder of a Note shall
receive, in respect of each $1,000 principal amount of Notes, at the same time and upon the same
terms as holders of shares of the Common Stock, the amount of cash that such Holder would have
received if such Holder owned a number of shares of Common Stock equal to the Conversion Rate on
the Ex-Dividend Date for such cash dividend or distribution.

(e) If the Company makes or any of its Subsidiaries makes a payment to holders of the Common
Stock in respect of a tender or exchange offer, other than an odd-lot offer, for the Common Stock,
to the extent that the cash and value of any other consideration included in the payment per share
of the Common Stock exceeds the average of the Last Reported Sale Price of the Common Stock over
the 10 consecutive Trading Days commencing on, and including, the Trading Day immediately following
the last date on which tenders or exchanges may be made pursuant to such tender or exchange offer,
the Conversion Rate shall be increased based on the following formula:

CR’ = CR0 × ((AC+(SP’×OS’))/(OS0×SP))

	 	 	CR0=the Conversion Rate in effect immediately prior to the close of business on the
Trading Day next succeeding the date such tender or exchange offer expires;

	 	 	CR’=the Conversion Rate in effect immediately after the close of business on the Trading Day next
succeeding the date such tender or exchange offer expires;

	 	 	AC=the aggregate value of all cash and any other consideration (as determined by the Board of
Directors) paid or payable for shares of Common Stock purchased in such tender or exchange
offer;

	 	 	OS0=the number of shares of Common Stock outstanding immediately prior to the date such
tender or exchange offer expires (prior to giving effect to the purchase of all shares of
Common Stock accepted for purchase or exchange in such tender or exchange offer);

	 	 	OS’=the number of shares of Common Stock outstanding immediately after the date such tender or
exchange offer expires (after giving effect to the purchase of all shares of Common Stock
accepted for purchase or exchange in such tender or exchange offer); and

	 	 	SP’=the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive
Trading-Day period (the “Averaging Period”) commencing on, and including, the Trading Day next
succeeding the date such tender or exchange offer expires.

The adjustment to the Conversion Rate under this Section 13.04(e) shall be calculated as of
the open of business on the Trading Day immediately following the last day of the Averaging Period
but will be given effect immediately after the open of business on the Trading Day next succeeding
the last date on which tenders or exchanges may be made pursuant to such tender or exchange offer.
If the Conversion Date (in the case of Physical Settlement) or the last Trading Day of an
Observation Period (in the case of Cash Settlement or Combination Settlement) occurs during the
related Averaging Period, the Company will pay or deliver, as the case may be, the cash, shares of
its Common Stock or a combination of cash and of its Common Stock, if any, on the third Business
Day immediately following the last day of the Averaging Period, and the Person in whose name the
certificate for any shares of Common Stock delivered upon conversion is registered shall be treated
as a stockholder of record as of the close of business on the last Trading Day of the Averaging
Period.

(f) Notwithstanding this Section 13.04 or any other provision of this Indenture or the Notes,
if a Conversion Rate adjustment becomes effective on any Ex-Dividend Date, and a Holder that has
converted its Notes on or after such Ex-Dividend Date and on or prior to the related Record Date
would be treated as the record holder of the shares of Common Stock as of the related Conversion
Date as described under Section 13.02(i) based on an adjusted Conversion Rate for such Ex-Dividend
Date, then, notwithstanding the Conversion Rate adjustment provisions in this Section 13.04, the
Conversion Rate adjustment relating to such Ex-Dividend Date shall not be made for such converting
Holder. Instead, such Holder shall be treated as if such Holder were the record owner of the
shares of Common Stock on an unadjusted basis and participate in the related dividend, distribution
or other event giving rise to such adjustment.

(g) Except as stated herein, the Company shall not adjust the Conversion Rate for the issuance
of shares of its Common Stock or any securities convertible into or exchangeable for shares of its
Common Stock or the right to purchase shares of its Common Stock or such convertible or
exchangeable securities (including as consideration for a merger, purchase or similar transaction).

(h) In addition to those adjustments required by clauses (a), (b), (c), (d) and (e) of this
Section 13.04, and to the extent permitted by applicable law and subject to the applicable rules of
The NASDAQ Global Select Market, the Company from time to time may increase the Conversion Rate by
any amount for a period of at least 20 Business Days if the Board of Directors determines that such
increase would be in the Company’s best interest. In addition, to the extent permitted by
applicable law and subject to the applicable rules of The NASDAQ Global Select Market, the Company
may (but is not required to) increase the Conversion Rate to avoid or diminish any income tax to
holders of Common Stock or rights to purchase Common Stock in connection with a dividend or
distribution of shares (or rights to acquire shares) or similar event. Whenever the Conversion
Rate is increased pursuant to either of the preceding two sentences, the Company shall mail to the
Holder of each Note at its last address appearing on the Note Register a notice of the increase at
least 15 days prior to the date the increased Conversion Rate takes effect, and such notice shall
state the increased Conversion Rate and the period during which it will be in effect.

(i) Notwithstanding anything to the contrary in this Article XIII, the Conversion Rate shall
not be adjusted:

(i) upon the issuance of any shares of Common Stock pursuant to any present or future plan
providing for the reinvestment of dividends or interest payable on the Company’s securities and the
investment of additional optional amounts in shares of Common Stock under any plan;

(ii) upon the issuance of any shares of Common Stock or options or rights to purchase those
shares pursuant to any present or future employee, director or consultant benefit plan or program
of or assumed by the Company or any of the Company’s Subsidiaries;

(iii) upon the repurchase of any shares of Common Stock pursuant to an open-market share
repurchase program or other buy-back transaction that is not a tender offer or exchange offer of
the nature described under Section 13.04(e);

(iv) for a third-party tender offer (other than a tender offer by any Subsidiary of the
Company as described under Section 13.04(e));

(v) upon the issuance of any shares of the Common Stock pursuant to any option, warrant, right
or exercisable, exchangeable or convertible security not described in clause (ii) of this
subsection and outstanding as of the date the Notes were first issued;

(vi) solely for a change in the par value of the Common Stock; or

(vii) for accrued and unpaid interest, if any.

The Company shall not be required to make an adjustment pursuant to clauses (a), (b), (c),
(d) or (e) of this Section 13.04 unless such adjustment would result in a change of at least 1% of
the then effective Conversion Rate. However, the Company shall carry forward any adjustment that
the Company would otherwise have to make and take that adjustment into account in any subsequent
adjustment. Notwithstanding the foregoing, all such carried-forward adjustments shall be made with
respect to the Notes (i) in connection with any subsequent adjustment to the Conversion Rate of at
least 1% of the Conversion Rate (when such carried-forward adjustments are taken into account),
(ii) on the occurrence of any Fundamental Change or Make-Whole Fundamental Change and (iii) on any
Conversion Date (in the case of Physical Settlement) or on each Trading Day of any Observation
Period (in the case of Cash Settlement or Combination Settlement). All calculations and other
determinations under this Article XIII shall be made by the Company and shall be made to the
nearest one-ten thousandth (1/10,000) of a share.

(j) Whenever the Conversion Rate is adjusted as herein provided, the Company shall promptly
file with the Trustee (and the Conversion Agent if not the Trustee) an Officer’s Certificate
setting forth the Conversion Rate after such adjustment and setting forth a brief statement of the
facts requiring such adjustment. Unless and until a Responsible Officer of the Trustee shall have
received such Officer’s Certificate, the Trustee shall not be deemed to have knowledge of any
adjustment of the Conversion Rate and may assume without inquiry that the last Conversion Rate of
which it has knowledge is still in effect. Promptly after delivery of such certificate, the
Company shall prepare a notice of such adjustment of the Conversion Rate setting forth the adjusted
Conversion Rate and the date on which each adjustment becomes effective and shall mail such notice
of such adjustment of the Conversion Rate to each Holder at its last address appearing on the Note
Register of this Indenture. Failure to deliver such notice shall not affect the legality or
validity of any such adjustment.

(k) For purposes of this Section 13.04, the number of shares of Common Stock at any time
outstanding shall not include shares held in the treasury of the Company so long as the Company
does not pay any dividend or make any distribution on shares of Common Stock held in the treasury
of the Company, but shall include shares issuable in respect of scrip certificates issued in lieu
of fractions of shares of Common Stock.

(l) For purposes of this Section 13.04, “Effective Date” means the first date on which the
shares of the Common Stock trade on the applicable exchange or in the applicable market, regular
way, reflecting the relevant share split or share combination, as applicable.

Section 13.05 Adjustments of Prices. Whenever any provision of this Indenture requires the
Company to calculate the Last Reported Sale Prices, the Daily VWAPs, the Daily Conversion Values,
the Daily Settlement Amounts over a span of multiple days (including an Observation Period and the
period for determining the Stock Price for purposes of a Make-Whole Fundamental Change), the
Company shall make appropriate adjustments to each to account for any adjustment to the Conversion
Rate that becomes effective, or any event requiring an adjustment to the Conversion Rate where the
Ex-Dividend Date of the event occurs, at any time during the period when such Last Reported Sale
Prices, Daily VWAPs, Daily Conversion Values or Daily Settlement Amounts are to be calculated.

Section 13.06 Shares to Be Fully Paid. The Company shall provide, free from preemptive
rights, out of its authorized but unissued shares or shares held in treasury, sufficient shares of
Common Stock to provide for conversion of the Notes from time to time as such Notes are presented
for conversion (assuming that at the time of computation of such number of shares, all such Notes
would be converted by a single Holder) and that Physical Settlement is applicable.

Section 13.07 Effect of Recapitalizations, Reclassifications and Changes of the Common Stock.

(a) In the case of:

(i) any recapitalization, reclassification or change of the Common Stock (other than changes
in par value or from no par value or resulting from a subdivision or combination),

(ii) any consolidation, merger or combination involving the Company,

(iii) any sale, lease or other transfer to a third party of the consolidated assets of the
Company and the Company’s Subsidiaries substantially as an entirety or

(iv) any statutory share exchange,

in each case, as a result of which the Common Stock would be converted into, or exchanged for,
stock, other securities, other property or assets (including cash or any combination thereof) (any
such event, a “Merger Event”), then, at and after the effective time of such Merger Event, the
right to convert each $1,000 principal amount of Notes shall be changed into a right to convert
such principal amount of Notes into the kind and amount of shares of stock, other securities or
other property or assets (including cash or any combination thereof) that a holder of a number of
shares of Common Stock equal to the Conversion Rate immediately prior to such Merger Event would
have owned or been entitled to receive (the “Reference Property,” with each “unit of Reference
Property” meaning the kind and amount of Reference Property that a holder of one share of Common
Stock is entitled to receive) upon such Merger Event and, prior to or at the effective time of such
Merger Event, the Company or the successor or purchasing Person, as the case may be, shall execute
with the Trustee a supplemental indenture permitted under Section 10.01(f) providing for such
change in the right to convert each $1,000 principal amount of Notes; provided, however, that at
and after the effective time of the Merger Event the Conversion Obligation shall be calculated and
settled in accordance with Section 13.02 such that (A) any amount otherwise payable in cash upon
conversion of the Notes as set forth under Section 13.02 shall continue to be payable in cash,
(B) the Company shall continue to have the right to elect to determine the form of consideration to
be paid or delivered, as the case may be, upon conversion of the Notes, as set forth under
Section 13.02, (C) any shares of Common Stock, that the Company would have been required to deliver
upon conversion of the Notes in accordance with Section 13.02 shall instead be deliverable in the
amount and type of Reference Property that a holder of that number of shares of Common Stock would
have received in such Merger Event and (D) the Daily VWAP shall be calculated based on the value of
a unit of Reference Property.

If the Merger Event causes the Common Stock to be converted into, or exchanged for, the right
to receive more than a single type of consideration (determined based in part upon any form of
stockholder election), then (i) the Reference Property into which the Notes will be convertible
shall be deemed to be the weighted average of the types and amounts of consideration received by
the holders of Common Stock that affirmatively make such an election, and (ii) the unit of
Reference Property for purposes of the immediately preceding paragraph shall refer to the
consideration referred to in clause (i) attributable to one share of Common Stock. If the holders
receive only cash in such Merger Event, then for all conversions that occur after the effective
date of such Merger Event (x) the consideration due upon conversion of each $1,000 principal amount
of Notes shall be solely cash in an amount equal to the Conversion Rate in effect on the Conversion
Date (as may be increased by any Additional Shares pursuant to Section 13.03), multiplied by the
price paid per share of Common Stock in such Merger Event and (y) the Company shall satisfy the
Conversion Obligation by paying cash to converting Holders on the third Business Day immediately
following the Conversion Date. The Company shall notify Holders, the Trustee and the Conversion
Agent (if other than the Trustee) of such weighted average as soon as practicable after such
determination is made.

Such supplemental indenture described in the second immediately preceding paragraph shall
provide for anti-dilution and other adjustments that shall be as nearly equivalent as is possible
to the adjustments provided for in this Article XIII. If, in the case of any Merger Event, the
Reference Property includes shares of stock, securities or other property or assets (including cash
or any combination thereof) of a Person other than the successor or purchasing corporation, as the
case may be, in such Merger Event, then such supplemental indenture shall also be executed by such
other Person and shall contain such additional provisions to protect the interests of the Holders
of the Notes as the Board of Directors shall reasonably consider necessary by reason of the
foregoing, including the provisions providing for the purchase rights set forth in Article XIV.

(b) In the event the Company shall execute a supplemental indenture pursuant to subsection
(a) of this Section 13.07, the Company shall promptly file with the Trustee an Officer’s
Certificate briefly stating the reasons therefor, the kind or amount of cash, securities or
property or asset that will comprise a unit of Reference Property after any such Merger Event, any
adjustment to be made with respect thereto and that all conditions precedent have been complied
with, and shall promptly mail notice thereof to all Holders. The Company shall cause notice of the
execution of such supplemental indenture to be mailed to each Holder, at its address appearing on
the Note Register provided for in this Indenture, within 20 days after execution thereof. Failure
to deliver such notice shall not affect the legality or validity of such supplemental indenture.

(c) The above provisions of this Section shall similarly apply to successive Merger Events.

Section 13.08 Certain Covenants. (a) The Company covenants that any shares of Common Stock
issued upon conversion of Notes will be validly issued, fully paid and non-assessable by the
Company and free from all taxes, liens and charges with respect to the issue thereof.

(b) The Company further covenants that if at any time the Common Stock shall be listed on any
national securities exchange or automated quotation system, the Company will use commercially
reasonable efforts to list and keep listed, so long as the Common Stock shall be so listed on such
exchange or automated quotation system, any Common Stock issuable upon conversion of the Notes.

Section 13.09 Responsibility of Trustee. The Trustee and any other Conversion Agent shall not
at any time be under any duty or responsibility to any Holder to determine the Conversion Rate (or
any adjustment thereto) or whether any facts exist that may require any adjustment (including any
increase) of the Conversion Rate, or with respect to the nature or extent or calculation of any
such adjustment when made, or with respect to the method employed, or herein or in any supplemental
indenture provided to be employed, in making the same. The Trustee and any other Conversion Agent
shall not be accountable with respect to the validity or value (or the kind or amount) of any
shares of Common Stock, or of any securities, property or cash that may at any time be issued or
delivered upon the conversion of any Note; and the Trustee and any other Conversion Agent make no
representations with respect thereto. Neither the Trustee nor any Conversion Agent shall be
responsible for any failure of the Company to issue, transfer or deliver any shares of Common Stock
or stock certificates or other securities or property or cash upon the surrender of any Note for
the purpose of conversion or to comply with any of the duties, responsibilities or covenants of the
Company contained in this Article. Without limiting the generality of the foregoing, neither the
Trustee nor any Conversion Agent shall be under any responsibility to determine the correctness of
any provisions contained in any supplemental indenture entered into pursuant to Section 13.07
relating either to the kind or amount of shares of stock or securities or property (including cash)
receivable by Holders upon the conversion of their Notes after any event referred to in such
Section 13.07 or to any adjustment to be made with respect thereto, but, subject to the provisions
of Section 7.01, may accept (without any independent investigation) as conclusive evidence of the
correctness of any such provisions, and shall be protected in conclusively relying upon, the
Officer’s Certificate (which the Company shall be obligated to file with the Trustee prior to the
execution of any such supplemental indenture) with respect thereto. Neither the Trustee nor the
Conversion Agent shall be responsible for determining whether any event contemplated by
Section 13.01(b) has occurred that makes the Notes eligible for conversion or no longer eligible
therefor until the Company has delivered to the Trustee and the Conversion Agent the notices
referred to in Section 13.01(b) with respect to the commencement or termination of such conversion
rights, on which notices the Trustee and the Conversion Agent may conclusively rely, and the
Company agrees to deliver such notices to the Trustee and the Conversion Agent immediately after
the occurrence of any such event or at such other times as shall be provided for in
Section 13.01(b). The Conversion Agent (if other than the Company or an Affiliate of the Company)
shall have the same protection under this Section 13.09 as the Trustee.

Section 13.10 Stockholder Rights Plans. To the extent that the Company has a rights plan in
effect upon conversion of the Notes, each share of Common Stock, if any, issued upon such
conversion shall be entitled to receive the appropriate number of rights, if any, and the
certificates representing the Common Stock issued upon such conversion shall bear such legends, if
any, in each case as may be provided by the terms of any such stockholder rights plan, as the same
may be amended from time to time. If at the time of conversion, however, the rights have separated
from the shares of Common Stock in accordance with the provisions of the applicable stockholder
rights plan so that the Holders would not be entitled to receive any rights in respect of Common
Stock, if any, issuable upon conversion of the Notes, the Conversion Rate shall be adjusted at the
time of separation as if the Company distributed to all or substantially all holders of the Common
Stock Distributed Property as provided in Section 13.04(c), subject to readjustment in the event of
the expiration, termination or redemption of such rights.

Section 13.11 Limit of Issuance of Common Stock Upon Conversion. The Company will not take
any voluntary action that would result in an adjustment to the Conversion Rate pursuant to
Sections 13.04(b), 13.04(c) 13.04(d) or 13.04(e) without complying, if applicable, with the
stockholder approval rules of The NASDAQ Global Select Market, or any similar rule of any stock
exchange on which the Common Stock is listed at the relevant time. In accordance with such listing
standards, this restriction will apply at any time when the Notes are outstanding, regardless of
whether the Company then has a class of securities listed on The NASDAQ Global Select Market.

Section 13.12 Withholding Taxes for Adjustments in Conversation Rate. If the Company pays
withholding taxes on behalf of a Holder or beneficial owner as a result of an adjustment to the
Conversion Rate, the Company may, at its option, set off such payments against payments of cash and
shares of Common Stock on the Notes.

ARTICLE XIV

Repurchase of Notes at Option of Holders

Section 14.01 Repurchase at Option of Holders Upon a Fundamental Change. (a) If a
Fundamental Change occurs at any time, each Holder shall have the right, at such Holder’s option,
to require the Company to repurchase for cash all of such Holder’s Notes, or any portion thereof
that is equal to $1,000 or an integral multiple of $1,000, on the date (the “Fundamental Change
Repurchase Date”) specified by the Company that is not less than 20 Business Days or more than 30
Business Days following the date of the Fundamental Change Company Notice at a repurchase price
equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to, but
excluding, the Fundamental Change Repurchase Date (the “Fundamental Change Repurchase Price”),
unless the Fundamental Change Repurchase Date falls after a Regular Record Date but on or prior to
the Interest Payment Date to which such Regular Record Date relates, in which case the Company
shall instead pay the full amount of accrued and unpaid interest to Holders of record as of such
Regular Record Date, and the Fundamental Change Repurchase Price shall be equal to 100% of the
principal amount of Notes to be repurchased pursuant to this Article XIV.

(b) Repurchases of Notes under this Section 14.01 shall be made, at the option of the Holder
thereof, upon:

(c) delivery to the Paying Agent by a Holder of a duly completed notice (the “Fundamental
Change Repurchase Notice”) substantially in the form set forth in Attachment 2 to the Form of Note
attached hereto as Exhibit A, if the Notes are Physical Notes, or in compliance with the
Depositary’s procedures for surrendering interests in Global Notes, if the Notes are Global Notes,
in each case on or before the close of business on the Business Day immediately preceding the
Fundamental Change Repurchase Date; and

(i) delivery of the Notes, if the Notes are Physical Notes, to the Paying Agent at any time
after delivery of the Fundamental Change Repurchase Notice (together with all necessary
endorsements for transfer) at the Corporate Trust Office of the Paying Agent, or book-entry
transfer of the Notes, if the Notes are Global Notes, in compliance with the procedures of the
Depositary, in each case such delivery being a condition to receipt by the Holder of the
Fundamental Change Repurchase Price therefor.

The Fundamental Change Repurchase Notice in respect of any Notes to be repurchased shall
state:

(i) in the case of Physical Notes, the certificate numbers of the Notes to be delivered for
repurchase;

(ii) the portion of the principal amount of Notes to be repurchased, which must be $1,000 or
an integral multiple thereof; and

(iii) that the Notes are to be repurchased by the Company pursuant to the applicable
provisions of the Notes and this Indenture;

provided, however, that if the Notes are Global Notes, the Fundamental Change Repurchase Notice
must comply with appropriate Depositary procedures.

Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the
Fundamental Change Repurchase Notice contemplated by this Section 14.01 shall have the right to
withdraw, in whole or in part, such Fundamental Change Repurchase Notice at any time prior to the
close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date
by delivery of a written notice of withdrawal to the Paying Agent in accordance with Section 14.02.

The Paying Agent shall promptly notify the Company of the receipt by it of any Fundamental
Change Repurchase Notice or written notice of withdrawal thereof.

(b) On or before the 20th calendar day after the occurrence of a Fundamental Change, the
Company shall provide to all Holders of Notes and the Trustee and the Paying Agent (in the case of
a Paying Agent other than the Trustee) a written notice (the “Fundamental Change Company Notice”)
of the occurrence of the Fundamental Change and of the repurchase right at the option of the
Holders arising as a result thereof. In the case of Physical Notes, such notice shall be by first
class mail or, in the case of Global Notes, such notice shall be delivered in accordance with the
applicable procedures of the Depositary. Each Fundamental Change Company Notice shall specify:

(i) the events causing the Fundamental Change;

(ii) the date of the Fundamental Change;

(iii) the last date on which a Holder may exercise the repurchase right pursuant to this
Article XIV;

(iv) the Fundamental Change Repurchase Price;

(v) the Fundamental Change Repurchase Date;

(vi) the name and address of the Paying Agent and the Conversion Agent, if applicable;

(vii) if applicable, the Conversion Rate and any adjustments to the Conversion Rate;

(viii) if applicable, that the Notes with respect to which a Fundamental Change Repurchase
Notice has been delivered by a Holder may be converted only if the Holder withdraws the Fundamental
Change Repurchase Notice in accordance with the terms of this Indenture;

(ix) the procedures that Holders must follow to require the Company to repurchase their Notes.

No failure of the Company to give the foregoing notices and no defect therein shall limit the
Holders’ repurchase rights or affect the validity of the proceedings for the repurchase of the
Notes pursuant to this Section 14.01.

At the Company’s written request and upon 15 days prior notice, the Trustee shall give such
notice in the Company’s name and at the Company’s expense; provided, however, that, in all cases,
the text of such Fundamental Change Company Notice shall be prepared by the Company.

(c) Notwithstanding the foregoing, no Notes may be repurchased by the Company on any date at
the option of the Holders upon a Fundamental Change if the principal amount of the Notes has been
accelerated, and such acceleration has not been rescinded, on or prior to such date (except in the
case of an acceleration resulting from a Default by the Company in the payment of the Fundamental
Change Repurchase Price with respect to such Notes). The Paying Agent will promptly return to the
respective Holders thereof any Physical Notes held by it during the acceleration of the Notes
(except in the case of an acceleration resulting from a Default by the Company in the payment of
the Fundamental Change Repurchase Price with respect to such Notes), or any instructions for
book-entry transfer of the Notes in compliance with the procedures of the Depositary shall be
deemed to have been cancelled, and, upon such return or cancellation, as the case may be, the
Fundamental Change Repurchase Notice with respect thereto shall be deemed to have been withdrawn.

Section 14.02 Withdrawal of Fundamental Change Repurchase Notice. (a) A Fundamental Change
Repurchase Notice may be withdrawn (in whole or in part) by means of a written notice of withdrawal
delivered to the Paying Agent in accordance with this Section 14.02 at any time prior to the close
of business on the Business Day immediately preceding the Fundamental Change Repurchase Date,
specifying:

(i) the principal amount of the Notes with respect to which such notice of withdrawal is being
submitted,

(ii) if Physical Notes have been issued, the certificate number of the Note in respect of
which such notice of withdrawal is being submitted, and

(iii) the principal amount, if any, of such Note that remains subject to the original
Fundamental Change Repurchase Notice, which portion must be in principal amounts of $1,000 or an
integral multiple of $1,000;

provided, however, that if the Notes are Global Notes, the notice must comply with appropriate
procedures of the Depositary.

Section 14.03 Deposit of Fundamental Change Repurchase Price. (a) The Company will deposit
with the Trustee (or other Paying Agent appointed by the Company, or if the Company is acting as
its own Paying Agent, set aside, segregate and hold in trust as provided in Section 4.04) on or
prior to 11:00 a.m., New York City time, on the Fundamental Change Repurchase Date an amount of
money sufficient to repurchase all of the Notes to be repurchased at the appropriate Fundamental
Change Repurchase Price. Subject to receipt of funds and/or Notes by the Trustee (or other Paying
Agent appointed by the Company), payment for Notes surrendered for repurchase (and not withdrawn
prior to the close of business on the Business Day immediately preceding the Fundamental Change
Repurchase Date) will be made on the later of (i) the Fundamental Change Repurchase Date with
respect to such Note (provided the Holder has satisfied the conditions in Section 14.01) and
(ii) the time of book-entry transfer or the delivery of such Note to the Trustee (or other Paying
Agent appointed by the Company) by the Holder thereof in the manner required by Section 14.01 by
mailing checks for the amount payable to the Holders of such Notes entitled thereto as they shall
appear in the Note Register; provided, however, that payments to the Depositary shall be made by
wire transfer of immediately available funds to the account of the Depositary or its nominee. The
Trustee shall, promptly after such payment and upon written demand by the Company, return to the
Company any funds in excess of the Fundamental Change Repurchase Price. Nothing herein shall
preclude any withholding tax required by law.

(b) If by 11:00 a.m. New York City time, on the Fundamental Change Repurchase Date, the
Trustee (or other Paying Agent appointed by the Company) holds money sufficient to pay the
Fundamental Change Repurchase Price of all the Notes or portions thereof that are to be repurchased
on such Fundamental Change Repurchase Date, then (i) such Notes will cease to be outstanding,
(ii) interest will cease to accrue on such Notes (whether or not book-entry transfer of the Notes
has been made or the Notes have been delivered to the Trustee or Paying Agent) and (iii) all other
rights of the Holders of such Notes will terminate (other than the right to receive the Fundamental
Change Repurchase Price).

(c) Upon surrender of a Note that is to be repurchased in part pursuant to Section 14.01, the
Company shall execute and the Trustee shall authenticate and deliver to the Holder a new Note in an
authorized denomination equal in principal amount to the unrepurchased portion of the Note
surrendered.

Section 14.04 Covenant to Comply with Applicable Laws Upon Repurchase of Notes. In connection
with any repurchase offer pursuant to a Fundamental Change Repurchase Notice, the Company will, if
required:

(a) comply with the provisions of Rule 13e-4, Rule 14e-1 and any other tender offer rules
under the Exchange Act that may then be applicable;

(b) file a Schedule TO or any other required schedule under the Exchange Act; and

(c) otherwise comply with all federal and state securities laws in connection with any offer
by the Company to repurchase the Notes;

in each case, so as to permit the rights and obligations under this Article XIV to be
exercised in the time and in the manner specified in this Article XIV.

ARTICLE XV

[Reserved]

ARTICLE XVI

Miscellaneous Provisions

Section 16.01 Provisions Binding on Company’s Successors. All the covenants,
stipulations, promises and agreements of the Company contained in this Indenture shall bind its
successors and assigns whether so expressed or not.

Section 16.02 Official Acts by Successor Corporation. Any act or proceeding by any provision
of this Indenture authorized or required to be done or performed by any board, committee or Officer
of the Company shall and may be done and performed with like force and effect by the like board,
committee or officer of any corporation or other entity that shall at the time be the lawful sole
successor of the Company.

Section 16.03 Addresses for Notices, Etc. Any notice or demand that by any provision of this
Indenture is required or permitted to be given or served by the Trustee or by the Holders on the
Company shall be deemed to have been sufficiently given or made, for all purposes if given or
served by being deposited postage prepaid by registered or certified mail in a post office letter
box addressed (until another address is filed by the Company with the Trustee) to Portfolio
Recovery Associates, Inc., 120 Corporate Boulevard, Suite 100, Norfolk, Virginia, 23502, Attention:
General Counsel or sent electronically in PDF format. Any notice, direction, request or demand
hereunder to or upon the Trustee shall be deemed to have been sufficiently given or made, for all
purposes, if given or served by being deposited postage prepaid by registered or certified mail in
a post office letter box addressed to the Corporate Trust Office or sent electronically in PDF
format.

The Trustee, by notice to the Company, may designate additional or different addresses for
subsequent notices or communications.

Any notice or communication mailed to a Holder shall be mailed to it by first class mail,
postage prepaid, at its address as it appears on the Note Register and shall be sufficiently given
to it if so mailed within the time prescribed; provided that notices given to Holders holding Notes
in book-entry form may be given through the facilities of the Depository.

Failure to mail a notice or communication to a Holder or any defect in it shall not affect its
sufficiency with respect to other Holders. If a notice or communication is mailed in the manner
provided above, it is duly given, whether or not the addressee receives it.

In case by reason of the suspension of regular mail service or by reason of any other cause it
shall be impracticable to give such notice to Holders by mail, then such notification as shall be
made with the approval of the Trustee shall constitute a sufficient notification for every purpose
hereunder.

Section 16.04 Governing Law; Jury Trial Waiver. THIS INDENTURE, THE NOTES, AND ANY CLAIM,
CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO THIS INDENTURE OR THE NOTES SHALL BE GOVERNED
BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO THE
CONFLICTS OF LAWS PROVISIONS THEREOF OTHER THAN SECTIONS 5-1401 AND 5-1402 OF THE GENERAL
OBLIGATIONS LAW). EACH OF THE COMPANY, THE HOLDERS AND THE TRUSTEE HEREBY IRREVOCABLY WAIVES, TO
THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL
PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTION CONTEMPLATED
HEREBY.

The Company irrevocably consents and agrees, for the benefit of the Holders from time to time
of the Notes and the Trustee, that any legal action, suit or proceeding against it with respect to
obligations, liabilities or any other matter arising out of or in connection with this Indenture or
the Notes may be brought in the courts of the State of New York or the courts of the United States
located in the Borough of Manhattan, New York City, New York and, until amounts due and to become
due in respect of the Notes have been paid, hereby irrevocably consents and submits to the
non-exclusive jurisdiction of each such court in personam, generally and unconditionally with
respect to any action, suit or proceeding for itself in respect of its properties, assets and
revenues.

The Company irrevocably and unconditionally waives, to the fullest extent permitted by law,
any objection which it may now or hereafter have to the laying of venue of any of the aforesaid
actions, suits or proceedings arising out of or in connection with this Indenture or the Notes
brought in the courts of the State of New York or the courts of the United States located in the
Borough of Manhattan, New York City, New York and hereby further irrevocably and unconditionally
waives and agrees not to plead or claim in any such court that any such action, suit or proceeding
brought in any such court has been brought in an inconvenient forum.

Section 16.05 Evidence of Compliance with Conditions Precedent; Certificates and Opinions of
Counsel to Trustee. Upon any application or demand by the Company to the Trustee to take any
action under any of the provisions of this Indenture other than an Opinion of Counsel with respect
to an action to be taken on the date hereof in connection with the initial issuance of the Notes,
the Company shall furnish to the Trustee an Officer’s Certificate and an Opinion of Counsel stating
that such action is permitted by the terms of this Indenture. Such Opinion of Counsel shall be in
form and substance reasonably satisfactory to the Trustee.

Each Officer’s Certificate provided for, by or on behalf of the Company in this Indenture and
delivered to the Trustee with respect to compliance with this Indenture (other than the Officer’s
Certificates provided for in Section 4.08) shall include (a) a statement that the Person making
such certificate is familiar with the requested action and this Indenture; (b) a brief statement as
to the nature and scope of the examination or investigation upon which the statement contained in
such certificate is based; (c) a statement that, in the judgment of such person, he or she has made
such examination or investigation as is necessary to enable him or her to express an informed
judgment as to whether or not such action is permitted by this Indenture; and (d) a statement as to
whether or not, in the judgment of such Person, such action is permitted by this Indenture.

Section 16.06 Legal Holidays. In any case where any Interest Payment Date, Fundamental Change
Repurchase Date, Conversion Date or Maturity Date is not a Business Day, then any action to be
taken on such date need not be taken on such date, but may be taken on the next succeeding Business
Day with the same force and effect as if taken on such date, and no interest shall accrue in
respect of the delay.

Section 16.07 No Security Interest Created. Nothing in this Indenture or in the Notes,
expressed or implied, shall be construed to constitute a security interest under the Uniform
Commercial Code or similar legislation, as now or hereafter enacted and in effect, in any
jurisdiction.

Section 16.08 Benefits of Indenture. Nothing in this Indenture or in the Notes, expressed or
implied, shall give to any Person, other than the parties hereto, any Paying Agent, any Conversion
Agent, any authenticating agent, any Note Registrar and their successors hereunder or the Holders,
any benefit or any legal or equitable right, remedy or claim under this Indenture.

Section 16.09 Table of Contents, Headings, Etc. The table of contents and the titles and
headings of the articles and sections of this Indenture have been inserted for convenience of
reference only, are not to be considered a part hereof, and shall in no way modify or restrict any
of the terms or provisions hereof.

Section 16.10 Authenticating Agent. The Trustee may appoint an authenticating agent that
shall be authorized to act on its behalf and subject to its direction in the authentication and
delivery of Notes in connection with the original issuance thereof and transfers and exchanges of
Notes hereunder, including under Section 2.04, Section 2.05, Section 2.06, Section 2.07,
Section 10.04 and Section 14.03 as fully to all intents and purposes as though the authenticating
agent had been expressly authorized by this Indenture and those Sections to authenticate and
deliver Notes. For all purposes of this Indenture, the authentication and delivery of Notes by the
authenticating agent shall be deemed to be authentication and delivery of such Notes “by the
Trustee” and a certificate of authentication executed on behalf of the Trustee by an authenticating
agent shall be deemed to satisfy any requirement hereunder or in the Notes for the Trustee’s
certificate of authentication. Such authenticating agent shall at all times be a Person eligible
to serve as trustee hereunder pursuant to Section 7.07.

Any corporation or other entity into which any authenticating agent may be merged or converted
or with which it may be consolidated, or any corporation or other entity resulting from any merger,
consolidation or conversion to which any authenticating agent shall be a party, or any corporation
or other entity succeeding to all or substantially all the corporate trust business of any
authenticating agent, shall be the successor of the authenticating agent hereunder, if such
successor corporation or other entity is otherwise eligible under this Section, without the
execution or filing of any paper or any further act on the part of the parties hereto or the
authenticating agent or such successor corporation or other entity.

Any authenticating agent may at any time resign by giving written notice of resignation to the
Trustee and to the Company. The Trustee may at any time terminate the agency of any authenticating
agent by giving written notice of termination to such authenticating agent and to the Company.
Upon receiving such a notice of resignation or upon such a termination, or in case at any time any
authenticating agent shall cease to be eligible under this Section, the Trustee may appoint a
successor authenticating agent (which may be the Trustee), shall give written notice of such
appointment to the Company and shall mail notice of such appointment to all Holders as the names
and addresses of such Holders appear on the Note Register.

The Company agrees to pay to the authenticating agent from time to time such compensation for
its services as agreed in writing although the Company may terminate the authenticating agent (if
other than the Trustee), if it determines such authenticating agent’s fees to be unreasonable.

The provisions of Section 7.02, Section 7.03, Section 7.04, Section 8.03 and this
Section 16.10 shall be applicable to any authenticating agent.

If an authenticating agent is appointed pursuant to this Section, the Notes may have endorsed
thereon, in addition to the Trustee’s certificate of authentication, an alternative certificate of
authentication in the following form:

        ,

as Authenticating Agent, certifies that this is one of the Notes described in

the within-named Indenture.

By:

Authorized Signatory

Section 16.11 Execution in Counterparts. This Indenture may be executed in any number of
counterparts, each of which shall be an original, but such counterparts shall together constitute
but one and the same instrument. The exchange of copies of this Indenture and of signature pages
by facsimile or PDF transmission shall constitute effective execution and delivery of this
Indenture as to the parties hereto and may be used in lieu of the original Indenture for all
purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be
their original signatures for all purposes.

Section 16.12 Severability. In the event any provision of this Indenture or in the Notes
shall be invalid, illegal or unenforceable, then (to the extent permitted by law) the validity,
legality or enforceability of the remaining provisions shall not in any way be affected or
impaired.

Section 16.13 Force Majeure. In no event shall the Trustee be responsible or liable for any
failure or delay in the performance of its obligations hereunder arising out of or caused by,
directly or indirectly, forces beyond its control, including, without limitation, strikes, work
stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural
catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications
or computer (software and hardware) services; it being understood that the Trustee shall use
reasonable efforts that are consistent with accepted practices in the banking industry to resume
performance as soon as practicable under the circumstances.

Section 16.14 Calculations. Except as otherwise provided herein, the Company shall be
responsible for making all calculations called for under the Notes. These calculations include,
but are not limited to, determinations of the Last Reported Sale Prices of the Common Stock, the
Daily VWAPs, the Daily Settlement Amounts, the Daily Conversion Values, accrued interest payable on
the Notes and the Conversion Rate of the Notes. The Company shall make all these calculations in
good faith and, absent manifest error, the Company’s calculations shall be final and binding on
Holders. The Company shall provide a schedule of its calculations to each of the Trustee and the
Conversion Agent, and each of the Trustee and Conversion Agent is entitled to rely conclusively
upon the accuracy of the Company’s calculations without independent verification. The Trustee will
forward the Company’s calculations to any Holder upon the written request of that Holder at the
sole cost and expense of the Company.

Section 16.15 USA PATRIOT Act. The parties hereto acknowledge that in accordance with
Section 326 of the USA PATRIOT Act, the Trustee, like all financial institutions and in order to
help fight the funding of terrorism and money laundering, is required to obtain, verify and record
information that identifies each person or legal entity that establishes a relationship or opens an
account with the Trustee. The parties to this Indenture agree that they will provide the Trustee
with such information as it may request in order for the Trustee to satisfy the requirements of the
USA PATRIOT Act.

Section 16.16 No Adverse Interpretation of Other Agreements. Other than the Notes and any
supplemental indenture hereto, this Indenture may not be used to interpret any other indenture,
loan or debt agreement of the Company or any of its Subsidiaries or of any other Person. Any such
indenture, loan or debt agreement may not be used to interpret this Indenture.

[Signature page follows.]

IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed as of
the date first written above.

PORTFOLIO RECOVERY ASSOCIATES, INC.

By: /s/ Kevin P. Stevenson—

Name: Kevin P. Stevenson

Title: Chief Financial and Administrative

Officer, Executive Vice President, Treasurer and

Assistant Secretary

WELLS FARGO BANK, NATIONAL ASSOCIATION, as Trustee

By: /s/ Stefan Victory—

Name: Stefan Victory

Title: Vice President

EXHIBIT A

[FORM OF FACE OF NOTE]

[INCLUDE FOLLOWING LEGEND IF A GLOBAL NOTE]

[UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER,
EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY
TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]

[INCLUDE FOLLOWING LEGEND IF A RESTRICTED SECURITY]

[THE SALE OF THIS NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS
AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, PRIOR TO THE RESALE RESTRICTION TERMINATION DATE
(AS DEFINED BELOW), THIS NOTE AND ANY SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THIS NOTE
(AND ANY BENEFICIAL INTEREST HEREIN OR THEREIN) MAY NOT BE OFFERED, RESOLD OR OTHERWISE
TRANSFERRED, EXCEPT:

	 	(A)	 	TO THE COMPANY OR ANY OF THEIR RESPECTIVE SUBSIDIARIES;

	 	(B)	 	PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE
SECURITIES ACT;

	 	(C)	 	TO A PERSON THAT YOU REASONABLY BELIEVE TO BE A QUALIFIED INSTITUTIONAL BUYER
IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT; OR

	 	(D)	 	UNDER ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT (INCLUDING, IF AVAILABLE, THE EXEMPTION PROVIDED BY RULE 144 UNDER THE
SECURITIES ACT).

THE “RESALE RESTRICTION TERMINATION DATE” MEANS THE DATE: (A) THAT IS AT LEAST ONE YEAR AFTER
THE LAST ORIGINAL ISSUANCE DATE OF THE NOTES (INCLUDING ISSUANCE OF ANY ADDITIONAL NOTES PURSUANT
TO THE EXERCISE OF THE INITIAL PURCHASERS’ OPTION TO PURCHASE ADDITIONAL NOTES); AND (B) ON WHICH
THE COMPANY HAS INSTRUCTED THE TRUSTEE THAT THIS LEGEND WILL NO LONGER APPLY IN ACCORDANCE WITH THE
PROCEDURES DESCRIBED IN THE INDENTURE.

PRIOR TO ANY TRANSFER PURSUANT TO THE FOREGOING CLAUSES (C) AND (D), THE COMPANY AND THE
TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH CERTIFICATIONS, LEGAL OPINIONS (WITH
RESPECT TO CLAUSE (D) ONLY) OR OTHER INFORMATION AS THEY MAY REASONABLY REQUIRE AND RELY UPON TO
CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT
SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

DURING THE PERIOD ENDING ONE YEAR AFTER THE LAST DATE OF ORIGINAL ISSUANCE OF THE NOTES, NO
“AFFILIATE” (AS DEFINED IN RULE 144) WILL BE PERMITTED TO RESELL ANY OF THE NOTES THAT CONSTITUTE
“RESTRICTED SECURITIES” UNDER RULE 144 THAT HAVE BEEN REACQUIRED BY ANY OF THEM.]1

Portfolio Recovery Associates, Inc.

3.00% Convertible Senior Note due 2020

No.    Initially $     

CUSIP No. 73640Q AA32

PORTFOLIO RECOVERY ASSOCIATES, INC., a corporation duly organized and validly existing under
the laws of the State of Delaware (the “Company,” which term includes any successor corporation or
other entity under the Indenture referred to on the reverse hereof), for value received hereby
promises to pay to [CEDE & CO.]3 [—]4, or registered assigns, the principal
sum [as set forth in the “Schedule of Exchanges of Notes” attached hereto]5[of
$(DOLLARS)]6, which amount, taken together with the principal amounts of all other
outstanding Notes, shall not, unless permitted by the Indenture, exceed $250,000,000 in aggregate
at any time (or $287,500,000 if the Initial Purchasers exercise their option to purchase additional
Notes in full as set forth in the Purchase Agreement), in accordance with the rules and procedures
of the Depositary, on the Maturity Date, and interest thereon as set forth below.

This Note shall accrue interest at the rate of 3.00% per year from August 13, 2013, or from
the most recent date for which interest has been paid or provided for to, but excluding, the next
scheduled Interest Payment Date until the Maturity Date. Accrued interest on this Note shall be
computed on the basis of a 360-day year composed of twelve 30-day months and, for partial months,
on the basis of actual days elapsed over a 30-day month. Interest is payable semi-annually in
arrears on each February 1 and August 1, commencing on February 1, 2014, to Holders of record at
the close of business on the preceding January 15 and July 15 (whether or not such day is a
Business Day), respectively. Additional Interest will be payable as set forth in Section 4.06(d),
Section 4.06(e) and Section 6.03 of the within-mentioned Indenture, and any reference to interest
on, or in respect of, any Note therein shall be deemed to include Additional Interest if, in such
context, Additional Interest is, was or would be payable pursuant to any of such Section 4.06(d),
Section 4.06(e) or Section 6.03 and any express mention of the payment of Additional Interest in
any provision therein shall not be construed as excluding Additional Interest in those provisions
thereof where such express mention is not made.

Any Defaulted Amounts shall accrue interest per annum at the rate borne by the Notes, subject
to the enforceability thereof under applicable law, from, and including, the relevant payment date
to, but excluding, the date on which such Defaulted Amounts shall have been paid by the Company, at
its election, in accordance with Section 2.03(c) of the Indenture.

The Company shall pay the principal of and interest on this Note, if and so long as such Note
is a Global Note, in immediately available funds in lawful money of the United States at the time
to the Depositary or its nominee, as the case may be, as the registered Holder of such Note. As
provided in and subject to the provisions of the Indenture, the Company shall pay the principal of
any Notes (other than Notes that are Global Notes) at the office or agency designated by the
Company for that purpose. The Company has initially designated the Trustee as its Paying Agent and
Note Registrar in respect of the Notes and the Trustee’s office in Minneapolis, Minnesota as a
place where Notes may be presented for payment or for registration of transfer and exchange.

Reference is made to the further provisions of this Note set forth on the reverse hereof,
including, without limitation, provisions giving the Holder of this Note the right to convert this
Note into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as
applicable, on the terms and subject to the limitations set forth in the Indenture. Such further
provisions shall for all purposes have the same effect as though fully set forth at this place.

This Indenture, the Notes, and any claim, controversy or dispute arising under or related to
this Indenture or the Notes, shall be governed by, and construed in accordance with, the laws of
the State of New York (without regard to the conflicts of laws provisions thereof other than
Sections 5-1401 and 5-1402 of the General Obligations Law).

In the case of any conflict between this Note and the Indenture, the provisions of the
Indenture shall control and govern.

This Note shall not be valid or become obligatory for any purpose until the certificate of
authentication hereon shall have been manually signed by the Trustee or a duly authorized
authenticating agent under the Indenture.

1This legend (other than the first paragraph
hereof) shall be deemed removed from the face of this Security without further
action of the Company, the Trustee, or the holders of this Security at such
time as the Company instructs the Trustee to remove such legend pursuant to
Section 2.05(c) of the Indenture.

2At such time as the Company notifies the
Trustee to remove the legend (other than the first paragraph thereof) pursuant
to Section 2.05(c) of the Indenture, the CUSIP number for this Security shall
be deemed to be CUSIP No. 73640Q AB1.

3Include for a Global Note.

4Include for a Physical Note.

5Include for a Global Note.

6Include for a Physical Note.

1

IN WITNESS WHEREOF, the Company has caused this Note to be duly executed.

PORTFOLIO RECOVERY ASSOCIATES, INC.

By:

Name:

Title:

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Trustee, certifies that this is one of the Notes described

in the within-named Indenture.

By:

Authorized Signatory

Dated:

[FORM OF REVERSE OF NOTE]

Portfolio Recovery Associates, Inc.

3.00% Convertible Senior Note due 2020

This Note is one of a duly authorized issue of Notes of the Company, designated as its 3.00%
Convertible Senior Notes due 2020 (the “Notes”), initially limited to the aggregate principal
amount of $250,000,000 (as increased by the aggregate principal amount of up to $37,500,000 of
additional Notes that may be purchased by the Initial Purchasers pursuant to the exercise of their
option to purchase additional Notes as set forth in the Purchase Agreement), all issued or to be
issued under and pursuant to an Indenture dated as of August 13, 2013 (the “Indenture”), between
the Company and Wells Fargo Bank, National Association (the “Trustee”), to which Indenture and all
indentures supplemental thereto reference is hereby made for a description of the rights,
limitations of rights, obligations, duties and immunities thereunder of the Trustee, the Company
and the Holders of the Notes. Additional Notes may be issued in an unlimited aggregate principal
amount, subject to certain conditions specified in the Indenture. Capitalized terms used in this
Note and not defined in this Note shall have the respective meanings set forth in the Indenture.

In the event of certain Events of Default (other than an Event of Default specified in
Section 6.01(i) or Section 6.01(j) of the Indenture with respect to the Company or any of its
Significant Subsidiaries) shall have occurred and be continuing, the principal of, and interest on,
all Notes may be declared, by either the Trustee or Holders of at least 25% in aggregate principal
amount of the Notes then outstanding, and upon said declaration shall become, due and payable, in
the manner, with the effect and subject to the conditions and certain exceptions set forth in the
Indenture.

Subject to the terms and conditions of the Indenture, the Company will make all payments and
deliveries in respect of the Fundamental Change Repurchase Price on the applicable Fundamental
Change Repurchase Date and the principal amount on the Maturity Date, as the case may be, to the
Holder who surrenders a Note to a Paying Agent to collect such payments in respect of the Note.
The Company will pay cash amounts in money of the United States that at the time of payment is
legal tender for payment of public and private debts.

The Indenture contains provisions permitting the Company and the Trustee in certain
circumstances, without the consent of the Holders of the Notes, and in certain other circumstances,
with the consent of the Holders of not less than a majority in aggregate principal amount of the
Notes at the time outstanding, evidenced as in the Indenture provided, to execute supplemental
indentures modifying the terms of the Indenture and the Notes as described therein. It is also
provided in the Indenture that, subject to certain exceptions, the Holders of a majority in
aggregate principal amount of the Notes at the time outstanding may on behalf of the Holders of all
of the Notes waive any past Default or Event of Default under the Indenture and its consequences.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall
alter or impair the obligation of the Company, which is absolute and unconditional, to pay or
deliver, as the case may be, the principal (including the Fundamental Change Repurchase Price, if
applicable) of, accrued and unpaid interest on, and the consideration due upon conversion of, this
Note at the place, at the respective times, at the rate and in the lawful money herein prescribed.

The Notes are issuable in registered form without coupons in denominations of $1,000 principal
amount and integral multiples thereof. At the office or agency of the Company referred to on the
face hereof, and in the manner and subject to the limitations provided in the Indenture, Notes may
be exchanged for a like aggregate principal amount of Notes of other authorized denominations,
without payment of any service charge but, if required by the Company or Trustee, with payment of a
sum sufficient to cover any transfer or similar tax that may be imposed in connection therewith as
a result of the name of the Holder of the new Notes issued upon such exchange of Notes being
different from the name of the Holder of the old Notes surrendered for such exchange.

The Notes are not subject to redemption through the operation of any sinking fund or
otherwise.

Upon the occurrence of a Fundamental Change, the Holder has the right, at such Holder’s
option, to require the Company to repurchase for cash all of such Holder’s Notes or any portion
thereof (in principal amounts of $1,000 or integral multiples thereof) on the Fundamental Change
Repurchase Date at a price equal to the Fundamental Change Repurchase Price.

Subject to the provisions of the Indenture, the Holder hereof has the right, at its option,
during certain periods and upon the occurrence of certain conditions specified in the Indenture,
prior to the close of business on the second Scheduled Trading Day immediately preceding the
Maturity Date, to convert any Notes or portion thereof that is $1,000 or an integral multiple
thereof, into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as
applicable, at the Conversion Rate specified in the Indenture, as adjusted from time to time as
provided in the Indenture.

Terms used in this Note and defined in the Indenture are used herein as therein defined.

ABBREVIATIONS

The following abbreviations, when used in the inscription of the face of this Note, shall be
construed as though they were written out in full according to applicable laws or regulations:

TEN COM = as tenants in common

UNIF GIFT MIN ACT = Uniform Gifts to Minors Act

CUST = Custodian

TEN ENT = as tenants by the entireties

JT TEN = joint tenants with right of survivorship and not as tenants in common

Additional abbreviations may also be used though not in the above list.

SCHEDULE A

SCHEDULE OF EXCHANGES OF NOTES

Portfolio Recovery Associates, Inc.

3.00% Convertible Senior Notes due 2020

The initial principal amount of this Global Note is [ ] DOLLARS ($[ ]). The following
increases or decreases in this Global Note have been made:

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	 	 	Principal amount of	 	Signature of
	 	 	 	 	 	 	 	 	 	 	 	 	this Global Note	 	authorized
	 	 	 	 	Amount of decrease	 	Amount of increase	 	following such	 	signatory of
	 	 	 	 	in principal amount	 	in principal amount	 	decrease or	 	Trustee or
	Date of exchange	 	of this Global Note	 	of this Global Note	 	increase	 	Custodian

ATTACHMENT 1

[FORM OF NOTICE OF CONVERSION]

	 	 	 
	To:

To:

	 	Portfolio Recovery Associates, Inc.

Wells Fargo Bank, National Association, 7000 Central Parkway NE, Suite

550, Atlanta, GA 30328

The undersigned registered owner of this Note hereby exercises the option to convert this
Note, or the portion hereof (that is $1,000 principal amount or an integral multiple thereof) below
designated, into cash, shares of Common Stock or a combination of cash and shares of Common Stock,
as applicable, in accordance with the terms of the Indenture referred to in this Note, and directs
that any cash payable and any shares of Common Stock issuable and deliverable upon such conversion,
together with any cash for any fractional share, and any Notes representing any unconverted
principal amount hereof, be issued and delivered to the registered Holder hereof unless a different
name has been indicated below. If any shares of Common Stock or any portion of this Note not
converted are to be issued in the name of a Person other than the undersigned, the undersigned will
pay all documentary, stamp or similar issue or transfer taxes, if any in accordance with
Section 13.02(d) and Section 13.02(e) of the Indenture. Any amount required to be paid to the
undersigned on account of interest accompanies this Note.

Dated:

Signature(s)

Signature Guarantee

Signature(s) must be guaranteed

by an eligible Guarantor Institution

(banks, stock brokers, savings and

loan associations and credit unions)

with membership in an approved

signature guarantee medallion program

pursuant to Securities and Exchange

Commission Rule 17Ad-15 if shares

of Common Stock are to be issued, or

Notes are to be delivered, other than

to and in the name of the registered holder.

2

Fill in for registration of shares if

to be issued, and Notes if to

be delivered, other than to and in the

name of the registered holder:

(Name)

(Street Address)

(City, State and Zip Code)

Please print name and address

Principal amount to be converted (if less than all):

$     ,000

NOTICE: The above signature(s) of the Holder(s)
hereof must correspond with the name as written upon
the face of the Note in every particular without
alteration or enlargement or any change whatever.

Social Security or Other Taxpayer

Identification Number

ATTACHMENT 2

[FORM OF FUNDAMENTAL CHANGE REPURCHASE NOTICE]

	 	 	 
	To:

To:

	 	Portfolio Recovery Associates, Inc.

Wells Fargo Bank, National Association, 7000 Central Parkway NE, Suite

550, Atlanta, GA 30328

The undersigned registered owner of this Note hereby acknowledges receipt of a notice from
Portfolio Recovery Associates, Inc. (the “Company”) as to the occurrence of a Fundamental Change
with respect to the Company and specifying the Fundamental Change Repurchase Date and requests and
instructs the Company to pay to the registered holder hereof in accordance with Section 14.01 of
the Indenture referred to in this Note (1) the entire principal amount of this Note, or the portion
thereof (that is $1,000 principal amount or an integral multiple thereof) below designated, and
(2) if such Fundamental Change Repurchase Date does not fall during the period after a Regular
Record Date and on or prior to the Business Day immediately following the corresponding Interest
Payment Date, accrued and unpaid interest, if any, thereon to, but excluding, such Fundamental
Change Repurchase Date.

In the case of Physical Notes, the certificate numbers of the Notes to be repurchased are as
set forth below:

Dated:

Signature(s)

Social Security or Other Taxpayer

Identification Number

Principal amount to be repurchased by the
Company (if less than all): $     ,000

NOTICE: The above signature(s) of the
Holder(s) hereof must correspond with the name
as written upon the face of the Note in every
particular without alteration or enlargement
or any change whatever.

ATTACHMENT 3

[FORM OF ASSIGNMENT AND TRANSFER]

Wells Fargo Bank, National Association,

as Trustee and Registrar

7000 Central Parkway NE

Suite 550

Atlanta, GA 30328

For value received        hereby sell(s), assign(s) and transfer(s) unto
     (Please insert social security or Taxpayer Identification Number of assignee) the
within Note, and hereby irrevocably constitutes and appoints        attorney to transfer the
said Note on the books of the Company, with full power of substitution in the premises.

In connection with any transfer of the within Note occurring prior to the Resale Restriction
Termination Date, as defined in the Indenture governing such Note, the undersigned confirms that
such Note is being transferred:

	 	•	 	to Portfolio Recovery Associates, Inc. or a subsidiary thereof; or

	 	•	 	Pursuant to a registration statement that has become or been declared effective
under the Securities Act of 1933, as amended; or

	 	•	 	Pursuant to and in compliance with Rule 144A under the Securities Act of 1933,
as amended; or

	 	•	 	Under any other available exemption from the registration requirements of the
Securities Act of 1933, as amended (including, if available, the exemption provided by
Rule 144 under the Securities Act of 1933, as amended, or any other available exemption
from the registration requirements of the Securities Act of 1933, as amended.

Dated:

3

Signature(s)

Signature Guarantee

Signature(s) must be guaranteed by an

eligible Guarantor Institution (banks, stock

brokers, savings and loan associations and

credit unions) with membership in an approved

signature guarantee medallion program pursuant

to Securities and Exchange Commission

Rule 17Ad-15 if Notes are to be delivered, other

than to and in the name of the registered holder.

NOTICE: The signature on the assignment must correspond with the name as written upon the face of
the Note in every particular without alteration or enlargement or any change whatever.

4cbmg_ex1031.htm

EXHIBIT 10.18

 

 

  

 

  

 

 

  

 

  

 

 

  

 

  

 

 

  

 

  

 

 

  

 

  

 

 

  

 

  

 

7

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