Document:

Exhibit 10.1

EXHIBIT 10.1

FOURTH AMENDMENT TO THE

CREDIT CARD PROGRAM AGREEMENT

This Fourth Amendment to the Credit Card Program Agreement (“Fourth Amendment”) is made and
entered into as of July 30, 2010 by and between HSBC Bank Nevada, National Association (“HSBC” or
“Bank”), and The Bon-Ton Stores, Inc. (“Bon-Ton”) and amends that certain Credit Card Program
Agreement dated as of June 20, 2005, as previously amended (“Agreement”).

WHEREAS, the undersigned parties desire to amend the Agreement.

NOW THEREFORE, in consideration of the mutual promises, covenants and agreements set forth
below and other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, HSBC and Bon-Ton do hereby agree as follows:

	1.	 	Section 20 of the Third Amendment to the Credit Card Program Agreement is deleted and
replaced in its entirety to read as follows:

	 	(20)	 	Subject to the provisions of Schedule 3-20, attached hereto, (a) either
party may terminate this Third Amendment (the “Opt Out Right”) by providing written
notice to the other party (the “Opt Out Notice”) no earlier than April 1, 2010 and no
later than August 31, 2010, and (b) this Third Amendment shall terminate and be of no
further force or effect on the 14th day following delivery of the Opt Out
Notice (the “Opt Out Effective Date”). The entry into and, if applicable, subsequent
termination of this Third Amendment in accordance with this paragraph shall not
impact any rights of any party to the Agreement existing prior to the date of this
Third Amendment.

2. All capitalized terms not otherwise defined herein shall have the same meaning afforded them in
the Agreement, as amended.

3. Except as otherwise modified herein, the terms and conditions of the Agreement, as amended,
remain in full force and effect.

IN WITNESS WHEREOF, the parties hereby execute this Fourth Amendment by their authorized
representatives.

	 	 	 	 	 	 	 
	The Bon-Ton Stores, Inc.	 	HSBC Bank Nevada, National Association
	 
	 	 	 	 	 	 
	By:

	 	/s/ BYRON L. BERGREN
	 	By:
	 	/s/ BRIAN D. HUGHES
	 

	 	 
	 	 	 	 
	 

	 	Authorized Signature
	 	 	 	Authorized Signature

	 	 	 
	Byron L. Bergren

	 	Brian D. Hughes
	Name (Type or Print)

	 	Name (Type or Print)

	 	 	 
	President & Chief Executive Officer

	 	Executive Vice President
	Title

	 	Titleexv4w01

Exhibit 4.01

 

 

CADENCE DESIGN SYSTEMS, INC.

as Issuer

and

DEUTSCHE BANK TRUST COMPANY AMERICAS

as Trustee

INDENTURE

Dated as of June 15, 2010

2.625% Cash Convertible Senior Notes due 2015

 

 

 

 

Table of Contents

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	ARTICLE 1
	Definitions
	 
	 	 	 	 	 	 
	Section 1.01.

	 	Definitions
	 	 	1	 
	Section 1.02.

	 	Incorporation by Reference of Trust Indenture Act
	 	 	13	 
	 
	 	 	 	 	 	 
	ARTICLE 2
	Issue, Description, Execution, Registration and Exchange of Notes
	 
	 	 	 	 	 	 
	Section 2.01.

	 	Designation and Amount
	 	 	13	 
	Section 2.02.

	 	Form of Notes
	 	 	14	 
	Section 2.03.

	 	Date and Denomination of Notes; Payments of Interest
	 	 	14	 
	Section 2.04.

	 	Execution, Authentication and Delivery of Notes
	 	 	16	 
	Section 2.05.

	 	Exchange and Registration of Transfer of Notes; Restrictions on Transfer;
Depositary
	 	 	17	 
	Section 2.06.

	 	Mutilated, Destroyed, Lost or Stolen Notes
	 	 	22	 
	Section 2.07.

	 	Temporary Notes
	 	 	23	 
	Section 2.08.

	 	Cancellation of Notes Paid, Converted, etc
	 	 	23	 
	Section 2.09.

	 	CUSIP Numbers
	 	 	23	 
	Section 2.10.

	 	Additional Notes, Repurchases
	 	 	24	 
	 
	 	 	 	 	 	 
	ARTICLE 3
	Particular Covenants of the Company
	 
	 	 	 	 	 	 
	Section 3.01.

	 	Payment of Principal and Interest
	 	 	24	 
	Section 3.02.

	 	Maintenance of Office or Agency
	 	 	25	 
	Section 3.03.

	 	Appointments to Fill Vacancies in Trustee’s Office
	 	 	25	 
	Section 3.04.

	 	Provisions as to Paying Agent
	 	 	26	 
	Section 3.05.

	 	Existence
	 	 	27	 
	Section 3.06.

	 	Rule 144A Information Requirement
	 	 	27	 
	Section 3.07.

	 	Stay, Extension and Usury Laws
	 	 	27	 
	Section 3.08.

	 	Compliance Certificate; Statements as to Defaults
	 	 	27	 
	Section 3.09.

	 	Further Instruments and Acts
	 	 	28	 
	 
	 	 	 	 	 	 
	ARTICLE 4
	Lists of Noteholders and Reports by the Company and the Trustee
	 
	 	 	 	 	 	 
	Section 4.01.

	 	Lists of Noteholders
	 	 	28	 
	Section 4.02.

	 	Preservation and Disclosure of Lists
	 	 	28	 
	Section 4.03.

	 	Reports by Trustee
	 	 	29	 
	Section 4.04.

	 	Reports by Company
	 	 	29	 

i

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	ARTICLE 5
	Defaults and Remedies
	 
	 	 	 	 	 	 
	Section 5.01.

	 	Events of Default
	 	 	29	 
	Section 5.02.

	 	Additional Interest
	 	 	32	 
	Section 5.03.

	 	Payments of Notes on Default; Suit Therefor
	 	 	33	 
	Section 5.04.

	 	Application of Monies Collected by Trustee
	 	 	35	 
	Section 5.05.

	 	Proceedings by Noteholders
	 	 	36	 
	Section 5.06.

	 	Proceedings by Trustee
	 	 	36	 
	Section 5.07.

	 	Remedies Cumulative and Continuing
	 	 	37	 
	Section 5.08.

	 	Direction of Proceedings and Waiver of Defaults by Majority of Noteholders
	 	 	37	 
	Section 5.09.

	 	Notice of Defaults
	 	 	38	 
	Section 5.10.

	 	Undertaking to Pay Costs
	 	 	38	 
	 
	 	 	 	 	 	 
	ARTICLE 6
	Concerning the Trustee
	 
	 	 	 	 	 	 
	Section 6.01.

	 	Duties and Responsibilities of Trustee
	 	 	38	 
	Section 6.02.

	 	Reliance on Documents, Opinions, etc
	 	 	40	 
	Section 6.03.

	 	No Responsibility for Recitals, etc
	 	 	42	 
	Section 6.04.

	 	Trustee, Paying Agents, Conversion Agents or Registrar May Own Notes
	 	 	42	 
	Section 6.05.

	 	Monies to be Held in Trust
	 	 	43	 
	Section 6.06.

	 	Compensation and Expenses of Trustee
	 	 	43	 
	Section 6.07.

	 	Officers’ Certificate as Evidence
	 	 	44	 
	Section 6.08.

	 	Conflicting Interests of Trustee
	 	 	44	 
	Section 6.09.

	 	Eligibility of Trustee
	 	 	44	 
	Section 6.10.

	 	Resignation or Removal of Trustee
	 	 	44	 
	Section 6.11.

	 	Acceptance by Successor Trustee
	 	 	46	 
	Section 6.12.

	 	Succession by Merger, etc
	 	 	46	 
	Section 6.13.

	 	Limitation on Rights of Trustee as Creditor
	 	 	47	 
	Section 6.14.

	 	Trustee’s Application for Instructions from the Company
	 	 	47	 
	Section 6.15.

	 	Authorization of Trustee to Take Other Action
	 	 	47	 
	 
	 	 	 	 	 	 
	ARTICLE 7
	Concerning the Noteholders
	 
	 	 	 	 	 	 
	Section 7.01.

	 	Action by Noteholders
	 	 	48	 
	Section 7.02.

	 	Proof of Execution by Noteholders
	 	 	48	 
	Section 7.03.

	 	Who Are Deemed Absolute Owners
	 	 	49	 
	Section 7.04.

	 	Company-owned Notes Disregarded
	 	 	49	 
	Section 7.05.

	 	Revocation of Consents; Future Holders Bound
	 	 	50	 

ii

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	ARTICLE 8
	Noteholders’ Meetings
	 
	 	 	 	 	 	 
	Section 8.01.

	 	Purpose of Meetings
	 	 	50	 
	Section 8.02.

	 	Call of Meetings by Trustee
	 	 	50	 
	Section 8.03.

	 	Call of Meetings by Company or Noteholders
	 	 	51	 
	Section 8.04.

	 	Qualifications for Voting
	 	 	51	 
	Section 8.05.

	 	Regulations
	 	 	51	 
	Section 8.06.

	 	Voting
	 	 	52	 
	Section 8.07.

	 	No Delay of Rights by Meeting
	 	 	52	 
	 
	 	 	 	 	 	 
	ARTICLE 9
	Supplemental Indentures
	 
	 	 	 	 	 	 
	Section 9.01.

	 	Supplemental Indentures Without Consent of Noteholders
	 	 	53	 
	Section 9.02.

	 	Supplemental Indentures With Consent of Noteholders
	 	 	54	 
	Section 9.03.

	 	Effect of Supplemental Indentures
	 	 	55	 
	Section 9.04.

	 	Notation on Notes
	 	 	55	 
	Section 9.05.

	 	Evidence of Compliance of Supplemental Indenture to be Furnished to Trustee
	 	 	56	 
	 
	 	 	 	 	 	 
	ARTICLE 10
	Consolidation, Merger, Sale, Conveyance and Lease
	 
	 	 	 	 	 	 
	Section 10.01.

	 	Company May Consolidate, etc. on Certain Terms
	 	 	56	 
	Section 10.02.

	 	Successor Corporation to be Substituted
	 	 	56	 
	Section 10.03.

	 	Officers’ Certificate and Opinion of Counsel to be Given to Trustee
	 	 	57	 
	 
	 	 	 	 	 	 
	ARTICLE 11
	Satisfaction and Discharge of Indenture
	 
	 	 	 	 	 	 
	Section 11.01.

	 	Discharge of Indenture
	 	 	57	 
	Section 11.02.

	 	Deposited Monies to be Held in Trust by Trustee
	 	 	58	 
	Section 11.03.

	 	Paying Agent to Repay Monies Held
	 	 	58	 
	Section 11.04.

	 	Return of Unclaimed Monies
	 	 	58	 
	Section 11.05.

	 	Reinstatement
	 	 	59	 
	 
	 	 	 	 	 	 
	ARTICLE 12
	Immunity of Incorporators, Stockholders, Officers and Directors
	 
	 	 	 	 	 	 
	Section 12.01.

	 	Indenture and Notes Solely Corporate Obligations
	 	 	59	 
	 
	 	 	 	 	 	 
	ARTICLE 13
	Conversion of Notes
	 
	 	 	 	 	 	 
	Section 13.01.

	 	Conversion Privilege
	 	 	59	 

iii

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	Section 13.02.

	 	Adjustments to Cash Due Upon Conversion Upon a Make-Whole Fundamental
Change
	 	 	62	 
	Section 13.03.

	 	Conversion Procedure
	 	 	64	 
	Section 13.04.

	 	Adjustment of Conversion Rate
	 	 	66	 
	Section 13.05.

	 	Adjustments Of Prices
	 	 	76	 
	Section 13.06.

	 	Effect of Reclassification, Consolidation, Merger or Sale
	 	 	76	 
	Section 13.07.

	 	Responsibility of Trustee
	 	 	77	 
	Section 13.08.

	 	Notice to Holders Prior to Certain Actions
	 	 	78	 
	Section 13.09.

	 	Exchange in Lieu of Conversion
	 	 	79	 
	 
	 	 	 	 	 	 
	ARTICLE 14
	Repurchase of Notes at Option of Holders
	 
	 	 	 	 	 	 
	Section 14.01.

	 	Repurchase at Option of Holders Upon a Fundamental Change
	 	 	80	 
	Section 14.02.

	 	Covenant To Comply With Applicable Laws Upon Repurchase Of Notes
	 	 	84	 
	 
	 	 	 	 	 	 
	ARTICLE 15
	Miscellaneous Provisions
	 
	 	 	 	 	 	 
	Section 15.01.

	 	Provisions Binding on Company’s Successors
	 	 	84	 
	Section 15.02.

	 	Official Acts by Successor Corporation
	 	 	85	 
	Section 15.03.

	 	Addresses for Notices, Etc
	 	 	85	 
	Section 15.04.

	 	Governing Law
	 	 	85	 
	Section 15.05.

	 	Evidence of Compliance with Conditions Precedent; Certificates and
Opinions of Counsel to Trustee
	 	 	85	 
	Section 15.06.

	 	Legal Holidays
	 	 	86	 
	Section 15.07.

	 	No Security Interest Created
	 	 	86	 
	Section 15.08.

	 	Benefits of Indenture
	 	 	86	 
	Section 15.09.

	 	Table of Contents, Headings, etc
	 	 	86	 
	Section 15.10.

	 	Authenticating Agent
	 	 	86	 
	Section 15.11.

	 	Execution in Counterparts
	 	 	87	 
	Section 15.12.

	 	USA PATRIOT Act
	 	 	87	 

iv

 

     INDENTURE dated as of June 15, 2010 between Cadence Design Systems, Inc., a Delaware
corporation, as issuer (hereinafter sometimes called the “Company”, as more fully set forth in
Section 1.01), and Deutsche Bank Trust Company Americas, a New York banking corporation, as trustee
(hereinafter sometimes called the “Trustee”, as more fully set forth in Section 1.01).

WITNESSETH:

     WHEREAS, for its lawful corporate purposes, the Company has duly authorized the issue of its
2.625% Cash Convertible Senior Notes due 2015 (the “Notes”), initially in an aggregate principal
amount not to exceed $300,000,000, and in order to provide the terms and conditions upon which the
Notes are to be authenticated, issued and delivered, the Company has duly authorized the execution
and delivery of this Indenture; and

     WHEREAS, the Notes, the certificate of authentication to be borne by the Notes, a Form of
Assignment and Transfer, a Form of Fundamental Change Repurchase Notice and a Form of Notice of
Conversion are to be substantially in the forms hereinafter provided for; and

     WHEREAS, all acts and things necessary to make the Notes, when executed by the Company and
authenticated and delivered by the Trustee or a duly authorized authenticating agent, as in this
Indenture provided, the valid, binding and legal obligations of the Company, and this Indenture a
valid agreement according to its terms, have been done and performed, and the execution of this
Indenture and the issue hereunder of the Notes have in all respects been duly authorized.

     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 1

Definitions

     Section 1.01. Definitions.

     (a) 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. All other
terms used in this Indenture,

 

 

which are defined in the Trust Indenture Act or which are by reference therein defined in the
Securities Act (except as herein otherwise expressly provided or unless the context otherwise
requires) shall have the meanings assigned to such terms in said Trust Indenture Act and in said
Securities Act as in force at the date of the execution of this Indenture. If any provision hereof
limits, qualifies or conflicts with another provision hereof which is required to be included in
this Indenture by any of the provisions of the Trust Indenture Act, such required provision shall
control. 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 additional interest then owing pursuant to Section 5.02.

     “Additional Notes” means any Notes (other than the Initial Notes) issued under this Indenture
in accordance with Section 2.10 hereof, as part of the same series and with the same CUSIP number
as the Initial Notes.

     “Adjustment Determination Date” shall have the meaning specified in Section 13.04(j).

     “Adjustment Event” shall have the meaning specified in Section 13.04(j).

     “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.

     “Beneficial Owner” and “Beneficial Ownership” means as determined in accordance with Rule
13d-3 under the Exchange Act.

     “Board of Directors” means the Board of Directors of the Company or, unless the context
otherwise requires, a committee of such Board of Directors 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, or a duly authorized
committee thereof (to the extent permitted by applicable law), and to be in full force and effect
on the date of such certification, and delivered to the Trustee.

2

 

     “Business Day” means any day, except a Saturday, Sunday or legal holiday on which banking
institutions in The City of New York or the city in
which the Corporate Trust Office is located are authorized or obligated by law or executive
order to close.

     “Capital Lease” means a lease that, in accordance with accounting principles generally
accepted in the United States of America, would be recorded as a capital lease on the balance sheet
of the lessee.

     “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 Make-Whole Premium” shall have the meaning specified in Section 13.02.

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

     “Code” means the Internal Revenue Code of 1986, as amended.

     “Commission” means the Securities and Exchange Commission.

     “Common Stock” means, subject to Section 13.06, shares of common stock of the Company, par
value $0.01 per share, at the date of this Indenture or shares of any class or classes resulting
from any reclassification or reclassifications thereof and that have no preference in respect of
dividends or of amounts payable in the event of any voluntary or involuntary liquidation,
dissolution or winding up of the Company and that are not subject to redemption by the Company;
provided that if at any time there shall be more than one such resulting class, the shares of each
such class then so issuable shall be substantially in the proportion which the total number of
shares of such class resulting from all such reclassifications bears to the total number of shares
of all such classes resulting from all such reclassifications.

     “Company” means Cadence Design Systems, Inc., a Delaware corporation, and subject to the
provisions of Article 10 and Section 13.06, its successors and assigns.

     “Company Order” means a written order of the Company, signed by (a) the Company’s Chief
Executive Officer, President, Executive or Senior Vice President, Managing Director 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 (a) or the Company’s
Treasurer or Assistant Treasurer or Secretary or any Assistant Secretary, and delivered to the
Trustee.

     “Conversion Agent” shall have the meaning specified in Section 3.02.

3

 

     “Conversion Date” shall have the meaning specified in Section 13.03(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” or other similar term means the principal corporate trust office of
the Trustee at which at any particular time its corporate trust business shall be principally
administered, which office is, at the date as of which this Indenture is dated, located at 60 Wall
Street — Mail Stop NYC60-2710, New York, New York 10005, Attention: Trust and Securities Services;
Re: Cadence Design Systems, Inc., with a copy to:

Deutsche Bank Trust Company Americas

c/o Deutsche Bank National Trust Company

Trust & Securities Services

100 Plaza One, Mailstop JCY03-0699

Jersey City, New Jersey 07311

Attn: Corporates Team Deal Manager — Cadence Design Systems Inc.

Tel: 201-593-3543

Fax: 732-578-4635

     “Custodian” means Deutsche Bank Trust Company Americas, as custodian for The Depository Trust
Company, with respect to the Notes in global form, or any successor entity thereto.

     “Daily Conversion Value” means, for each of the 35 consecutive Trading Days during the
Observation Period, one thirty-fifth (1/35) of the product of (a) the applicable Conversion Rate on
such day and (b) the Daily VWAP of the Common Stock (or the Reference Property pursuant to Section
13.06) on such day, as determined by the Company.

     “Daily VWAP” for the Common Stock means, for each of the 35 consecutive Trading Days during
the Observation Period, the per share volume-weighted average price as displayed under the heading
“Bloomberg VWAP” on Bloomberg (or any successor service) page CDNS.UQ <equity> AQR in respect
of the period from 9:30 a.m. to 4:00 p.m. (New York City time) on such Trading Day (or if such
volume-weighted average price is unavailable, the market value of one share of Common Stock on such
Trading Day as determined by the Board of Directors in good faith using a volume-weighted method or
by a nationally recognized independent investment banking firm retained for this purpose by the
Company).

4

 

     “Day” or “day” means a calendar day unless the context otherwise requires or as expressly
stated.

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

     “Defaulted Interest” shall have the meaning specified in Section 2.03.

     “Depositary” means, with respect to the Notes issuable or issued in whole or in part in global
form, the person specified in Section 2.05(d) 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).

     “effective date” shall have the meaning specified in Section 13.04(f).

     “Event of Default” means, with respect to the Notes, any event specified in Section 5.01,
continued for the period of time, if any, and after the giving of notice, if any, therein
designated.

     “Ex-Dividend Date” means with respect to any issuance, dividend, or distribution on the Common
Stock, the first date on which shares of Common Stock trade on the applicable exchange or in the
applicable market, regular way, without the right to receive such issuance, dividend or
distribution from the Company, whether directly or indirectly by due bills or otherwise.

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

     “Financial Institution” shall have the meaning specified in Section 13.10(a).

     “Form of Assignment and Transfer” shall mean the “Form of Assignment and Transfer” attached as
Attachment 3 to the Form of Note.

     “Form of Fundamental Change Repurchase Notice” shall mean the “Form of Fundamental Change
Repurchase Notice” attached as Attachment 2 to the Form of Note.

     “Form of Note” shall mean the “Form of Note” attached hereto as Exhibit A.

     “Form of Notice of Conversion” shall mean the “Form of Notice of Conversion” attached as
Attachment 1 to the Form of Note.

5

 

     “Fundamental Change” means the occurrence of any of the following: (1) a “person” or “group”
within the meaning of Section 13(d) of the Exchange Act other than the Company, its Subsidiaries
and the Company and its Subsidiaries’ employee benefit plans, files a Schedule TO or any schedule,
form or report under the Exchange Act, disclosing that such person or group has become the direct
or indirect Beneficial Owner of our common equity representing more than 50% of the voting power of
the common equity of the Company; (2) 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 or (B) any share exchange, consolidation or merger of the
Company pursuant to which the Common Stock will be converted into cash, securities or other assets
or 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 the Subsidiaries, taken as a whole,
to any Person other than the Company or any of its Subsidiaries; provided, however, that a
transaction where (i) the Common Stock is not changed or exchanged except to the extent necessary
to reflect a change in the Company’s jurisdiction of incorporation or (ii) the holders of more than
50% of all classes of the common equity of the Company immediately prior to such transaction own,
directly or indirectly, more than 50% of the aggregate voting power of the common equity of the
continuing or surviving corporation or transferee or the parent thereof immediately after such
event shall not constitute a Fundamental Change; (3) the stockholders of the Company approve any
plan or proposal for the liquidation or dissolution of the Company; or (4) the Common Stock (or
other common stock constituting, in whole or in part, the Reference Property) ceases to be listed
or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market, The NASDAQ Global
Market (or any of their respective successors) or an alternate exchange of equivalent or greater
liquidity with respect to the Common Stock (or other common stock constituting, in whole or in
part, the Reference Property).

     Notwithstanding the foregoing, a transaction or transactions described in clause (2) above
will not constitute a Fundamental Change, if at least 90% of the consideration received or to be
received by holders of the Common Stock, excluding cash payments for fractional shares and cash
payments made pursuant to dissenters’ appraisal rights, in connection with such transaction or
transactions consists of shares of common stock 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 of such transaction or transactions the value of
such consideration determines the amount payable upon conversion of the notes, excluding cash
payments for fractional shares and cash payments made pursuant to dissenters’ appraisal rights
(subject to the provisions of Section 13.03).

6

 

     “Fundamental Change Expiration Time” shall have the meaning specified in Section 14.01(a)(i).

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

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

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

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

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

     “Indebtedness” as applied to any Person, means (i) obligations, contingent or otherwise, for
money borrowed (other than unamortized debt discount or premium); (ii) reimbursement and other
obligations pertaining to letters of credit issued for the account of such Person; (iii)
obligations under any swap, cap, collar, forward purchase contract, derivatives contract or other
similar agreement pursuant to which such Person hedges risks related to interest rates, currency
exchange rates, commodity prices, financial market conditions or other risks incurred by such
Person in the operation of its business; (iv) obligations evidenced by bonds, debentures,
promissory notes or other instruments or arrangements; (v) obligations as lessee under a Capital
Lease; and (vi) obligations of such Person under any amendments, renewals, extensions,
modifications and refundings of any such Indebtedness or obligations listed in clause (i), (ii),
(iii), (iv) or (v) above. All Indebtedness of any type described in the immediately preceding
sentence which is secured by a lien upon property owned by such Person, although such Person has
not assumed or become liable for the payment of such Indebtedness, shall for all purposes be deemed
to be Indebtedness of such Person. All Indebtedness for borrowed money incurred by any other
Persons which is directly guaranteed as to payment of principal by such Person shall for all
purposes be deemed to be Indebtedness of such Person, but no other contingent obligation of such
Person in respect of Indebtedness incurred by any other Persons shall for any purpose be deemed to
be Indebtedness of such Person.

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

     “Initial Notes” means Notes in an aggregate principal amount of $300,000,000, initially issued
under this Indenture.

     “Initial Purchasers” means J.P. Morgan Securities Inc., Morgan Stanley & Co. Incorporated,
Merrill, Lynch, Fenner & Smith Incorporated.

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     “Interest” means (i) Regular Interest and (ii) Additional Interest, if any.

     “Interest Payment Date” means June 1 and December 1 of each year, beginning on December 1,
2010.

     “Last Reported Sale Price” means, with respect to the Common Stock or any other security for
which a Last Reported Sale Price must be determined, on any date, the closing sale price per share
of the Common Stock or unit of such other security (or, if no closing sale price is reported, the
average of the closing bid and closing ask prices or, if more than one in either case, the average
of the average closing bid and the average closing ask prices) on such date as reported in
composite transactions for the principal U.S. national or regional securities exchange on which the
Common Stock or such other security is traded. If the Common Stock or such other security 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 closing quoted bid price per share of Common Stock or such
other security in the over-the-counter market on the relevant date, as reported by Pink OTC Markets
Inc. or a similar organization. In the absence of such quotation, the Last Reported Sale Price
shall be the average of the mid-point of the closing bid and ask prices for the Common Stock or
such other security on the relevant date from each of at least three nationally recognized
independent investment banking firms (which may include any or all of the Initial Purchasers)
selected from time to time by the Company for that purpose. The Last Reported Sale Price shall be
determined without reference to extended or after hours trading.

     “Make-Whole Effective Date” shall have the meaning specified in Section 13.02(a).

     “Make-Whole Fundamental Change” shall have the meaning specified in Section 13.02(a).

     “Make-Whole Fundamental Change Notice” shall have the meaning specified in Section 13.02(b).

     “Make-Whole Fundamental Change Notice” shall have the meaning specified in Section 13.02(c).

     “Market Disruption Event” means the occurrence or existence for more than a one-half hour
period in the aggregate on any Scheduled Trading Day for the Common Stock of any 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 such suspension or limitation occurs or exists at any time before
1:00 p.m. (New York City time) on such day.

     “Maturity Date” means June 1, 2015.

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

     “NASDAQ Global Select Market” shall mean the NASDAQ Global Select Market of The NASDAQ Stock
Market, Inc. and any successor market or exchange.

     “National Securities Exchange” means a securities exchange that has registered with the
Commission under Section 6 of the Exchange Act, or any successor provision.

     “Note” or “Notes” means any note or notes, as the case may be, authenticated and delivered
under this Indenture.

     “Noteholder” or “Holder,” as applied to any Note, or other similar terms (but excluding the
term “Beneficial Holder”), means any person in whose name at the time a particular Note is
registered on the Note Register.

     “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 13.03(c).

     “Observation Period” means:

     (i) for Notes that are converted on or after the 40th Scheduled Trading Day prior to the
Maturity Date, the 35 consecutive Trading Day period beginning on the 37th Scheduled Trading Day
prior to the Maturity Date; and

     (ii) in all other instances, the 35 consecutive Trading Day period beginning on and including
the third Trading Day after the related Conversion Date in respect of such Note.

     “Officers’ Certificate,” when used with respect to the Company, means a certificate delivered
to the Trustee and signed by (a) one of the President, the Chief Executive Officer, any Executive
or Senior Vice President, Managing Director or any Vice President (whether or not designated by a
number or numbers or word added before or after the title “Vice President”) and (b) by any such
other officer designated in (a) or by one of the Treasurer or any Assistant Treasurer, Secretary or
any Assistant Secretary or Controller of the Company. Each such certificate shall include the
statements provided for in Section 15.05 if and to the extent required by the provisions of such
Section. One of the officers giving an Officers’ Certificate pursuant to Section 3.08 shall be the
principal executive, financial or accounting officer of the Company.

     “Opening of Business” means 9:00 a.m. (New York City Time).

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     “Opinion of Counsel” means an opinion in writing signed by legal counsel, who may be an
employee of or counsel to the Company, or other counsel acceptable to the Trustee, which is
delivered to the Trustee. Each such opinion shall include the statements provided for in Section
15.05 if and to the extent required by the provisions of such Section.

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

     (i) Notes theretofore canceled by the Trustee or accepted by the Trustee for cancellation for
the Holders of such Notes;

     (ii) Notes, or portions thereof, for the payment or repurchase 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);

     (iii) 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 whose hands such Notes
are valid obligations of the Company; and

     (iv) Notes converted pursuant to Article 13.

     “Paying Agent” shall have the meaning specified in Section 3.02.

     “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, including any syndicate or group that
would be deemed to be a “person” under Section 13(d)(3) of the Exchange Act.

     “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 lost,
destroyed or stolen Note that it replaces.

     “Purchase Agreement” means that certain Purchase Agreement dated June 9, 2010 among the
Company and the Initial Purchasers.

     “record date,” with respect to the payment of interest on any Interest Payment Date, shall
have the meaning specified in Section 2.03.

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     “Reference Property” shall have the meaning specified in Section 13.06(b).

     “Regular Interest” means interest which shall accrue on the Notes from June 15, 2010 at a rate
of 2.625% per annum until the principal thereof is paid or made available for payment, payable
semi-annually in arrears on each Interest Payment Date.

     “Reorganization Event” shall have the meaning specified in Section 13.06.

     “Resale Restriction Termination Date” shall have the meaning specified in Section 2.05.

     “Responsible Officer,” when used with respect to the Trustee, shall mean an officer of the
Trustee in the Corporate Trust Office, having direct responsibility for the administration of this
Indenture, and also, with respect to a particular matter, any other officer to whom such matter is
referred because of such officer’s knowledge of and familiarity with the particular subject.

     “Restricted Securities” has the meaning specified in Section 2.05(e).

     “Rule 144” means Rule 144 under the Securities Act (including any successor rule thereto), as
the same may be amended from time to time.

     “Rule 144A” means Rule 144A under the Securities Act (including any successor rule thereto),
as the same may be amended from time to time.

     “Scheduled Trading Day” means a day that is scheduled to be a Trading Day on the primary U.S.
National 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” shall mean a
Business Day.

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

     “Settlement Amount” means the sum of the Daily Conversion Values for each of the 35 Trading
Days during the Observation Period.

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

     “Significant Subsidiary” means such Subsidiary of the Company as meets the definition of
“significant subsidiary” in Rule 1-02(w) of Regulation S-X promulgated by the Commission.

     “Stock Price” means the price paid (or deemed paid) per share of Common Stock in connection
with a Make-Whole Fundamental Change pursuant

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to which the Conversion Rate shall be increased to reflect the Cash Make-Whole Premium as set
forth in Section 13.01(d) hereof, which shall be equal to (i) if holders of Common Stock receive
only cash in a Make-Whole Fundamental Change described in clause (2) of the definition of
Fundamental Change, the cash amount paid per share of Common Stock and (ii) in all other cases, the
average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day
period ending on, and including, the Scheduled Trading Day immediately preceding the Make-Whole
Effective Date.

     “Subsidiary” means, with respect to any Person, any corporation, limited liability company,
association, partnership or other business entity of which more than 50% of the total voting power
of Capital Stock 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 Corporation” shall have the meaning specified in Section 10.01(a).

     “Trading Day” means a day during which (a) trading in the Common Stock generally occurs, (b)
there is no Market Disruption Event and (c) a Last Reported Sale Price for the Common Stock (other
than a Last Reported Sale Price referred to in the penultimate sentence of the definition of Last
Reported Sale Price) is available for such day.

     “Trading Price” with respect to the Notes, on any date of determination, means the average of
the secondary market bid quotations obtained by the Trustee for $2.0 million 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 selected by the Company (which may include any
or all of the Initial Purchasers); provided that if three such bids cannot reasonably be obtained
by the Trustee, but two such bids are obtained, then the average of the two bids shall be used, and
if only one such bid can reasonably be obtained by the Trustee, that one bid shall be used. If the
Trustee cannot reasonably obtain at least one bid for $2.0 million principal amount of Notes from a
nationally recognized securities dealer, then the Trading Price per $1,000 principal amount of
Notes will be deemed to be less than 98% of the product of the Last Reported Sale Price of the
Common Stock (as provided to the Trustee by the Company) and the Conversion Rate.

     “Trigger Event” shall have the meaning specified in Section 13.04(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

12

 

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 Deutsche Bank Trust Company Americas, and its successors and any corporation
resulting from or surviving any consolidation or merger to which it or its successors may be a
party and any successor trustee at the time serving as successor trustee hereunder.

     “USA PATRIOT Act” shall have the meaning specified in Section 15.12.

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

     Section 1.02. Incorporation by Reference of Trust Indenture Act.

     This Indenture is subject to the mandatory provisions of the Trust Indenture Act, which are
incorporated by reference in and made a part of this Indenture. The following Trust Indenture Act
terms have the following meanings:

     “indenture securities” means the Notes.

     “indenture security holder” means a Noteholder or a Holder.

     “indenture trustee” or “institutional trustee” means the Trustee.

     “obligor” on the indenture securities means the Company and any other obligor on the indenture
securities.

     All other terms in this Indenture that are defined by the Trust Indenture Act, defined by it
by reference to another statute or defined by Commission rule have the meanings assigned to them by
such definitions. If any provision hereof limits, qualifies or conflicts with another provision
hereof which is required to be included in this Indenture by the Trust Indenture Act, such required
provision shall control.

ARTICLE 2

Issue, Description, Execution, Registration and Exchange of Notes

     Section 2.01. Designation and Amount. The Notes shall be designated as the “2.625% Cash
Convertible Senior Notes due 2015.” The aggregate principal amount of Notes that may be
authenticated and delivered under this Indenture is initially limited to $300,000,000, 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 9.04 and
Section 13.03.

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     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 form set forth in Exhibit A.

     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, conversions, transfers or exchanges permitted hereby. Any endorsement of the 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 instructions given by the Holder of such Notes in accordance with this
Indenture. Payment of principal and accrued and unpaid interest on the 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.

     The terms and provisions contained in the Form of Note are incorporated herein and shall
constitute, and are hereby expressly made, a part of this Indenture and 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.

     Section 2.03. Date and Denomination of Notes; Payments of Interest. The Notes shall be
issuable in registered form without coupons in denominations of $2,000 principal amount and
multiples of $1,000 above that amount. 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.
Interest on the Notes shall be computed on the basis of a 360-day year comprised of twelve 30-day
months.

     The Person in whose name any Note (or its Predecessor Note) is registered on the Note Register
at the Close of Business on any 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 of the Company maintained by the Company for such purpose, which shall initially be
the Corporate Trust Office. The Company shall pay Interest (i) on any Notes in

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certificated form by check mailed to the address of the Person entitled thereto as it appears
in the Note Register (or upon written application by such Person to the Note Registrar not later
than the relevant record date, by wire transfer in immediately available funds to such Person’s
account within the United States, if such Person is entitled to Interest on an aggregate principal
in excess of $1,000,000) or (ii) on any Global Note by wire transfer of immediately available funds
to the account of the Depositary or its nominee. The term “record date” with respect to any
Interest Payment Date shall mean the May 15 and November 15 preceding the applicable June 1 or
December 1 Interest Payment Date, respectively.

     Any Interest on any Note which is payable, but is not punctually paid or duly provided for, on
any Interest Payment Date (herein called “Defaulted Interest”) shall forthwith cease to be payable
to the Holder of such Note on the relevant record date by virtue of his having been such Holder,
and such Defaulted Interest shall be paid by the Company, at its election in each case, as provided
in clause (1) or (2) below:

     (1) The Company may elect to make payment of any Defaulted Interest 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 Interest, which shall be fixed in the
following manner. The Company shall notify the Trustee in writing of the amount of Defaulted
Interest proposed to be paid on each Note and the date of the proposed payment (which shall be not
less than twenty-five (25) days after the receipt by the Trustee of such notice, unless the Trustee
shall consent 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 Interest
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 Interest as in this clause provided. Thereupon the Company shall fix a
special record date for the payment of such Defaulted Interest which shall be not more than fifteen
(15) days and not less than ten (10) days prior to the date of the proposed payment, and not less
than ten (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 Interest and the special record date therefor to be mailed, first-class postage prepaid,
to each Holder at his address as it appears in the Note Register, not less than ten (10) days prior
to such special record date. Notice of the proposed payment of such Defaulted Interest and the
special record date therefor having been so mailed, such Defaulted Interest 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 (2) of this Section 2.03.

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     (2) The Company may make payment of any Defaulted Interest 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 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 Chairman or
Vice-Chairman of the Board of Directors, Chief Executive Officer, President, any of its Executive
or Senior Vice Presidents, Managing Director, or any of its Vice Presidents (whether or not
designated by a number or numbers or word or words added before or after the title “Vice
President”).

     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, manually executed by an authorized
officer of the Trustee (or an authenticating agent appointed by the Trustee as provided by Section
15.10), 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 proper officers of the Company, although at the date of
the execution of this Indenture any such person was not such an officer.

     The Trustee shall have the right to decline to authenticate and deliver any Notes under this
Section if the Trustee, being advised by counsel of national reputation, determines that such
action may not lawfully be taken or if the Trustee

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in good faith shall determine that such action would expose the Trustee to personal liability
to existing Noteholders.

     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 and in any other office or agency of the Company designated pursuant to
Section 3.02 being herein sometimes collectively referred to as the “Note Register”) in which,
subject to such reasonable regulations as it may prescribe, the Company shall provide for the
registration of Notes and 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 appointed “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
3.02.

     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 3.02. Whenever any Notes are so surrendered for
exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Notes the
Noteholder 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 Noteholder thereof or his
attorney-in-fact duly authorized in writing.

     No service charge shall be charged to the Noteholder for any exchange or registration of
transfer of Notes, but the Company or the Trustee may require payment of a sum sufficient to cover
any transfer tax or similar governmental charge required by law or permitted by the Indenture that
may be imposed in connection therewith.

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     None of the Company, the Trustee, the Note Registrar or any co-Note Registrar shall be
required to exchange or register a transfer of (a) any Notes surrendered for conversion or, if a
portion of any Note is surrendered for conversion, such portion thereof surrendered for conversion
or (b) any Notes, or a portion of any Note, surrendered for repurchase (and not withdrawn) except
in accordance with Article 13 for conversion and Article 14 for repurchase hereof, respectively.

     All Notes issued upon any registration of transfer or exchange of Notes in accordance with
this Indenture shall be the valid 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, all Notes shall be represented by one or more Notes in global form
without interest coupons (each, a “Global Note”) registered in the name of the Depositary or the
nominee of the Depositary. The transfer and exchange of beneficial interests in a Global Note,
which does not involve the issuance of a definitive 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) 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, the Depositary or by the Financial Industry Regulatory Authority, Inc. 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 admitted
for trading 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.

     Notwithstanding any other provisions of this Indenture, a Global Note may not be transferred
as a whole or in part except 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.

     (d) The Depositary shall be a clearing agency registered under the Exchange Act. The Company
initially appoints The Depository Trust Company to act as Depositary with respect to the Global
Note. Initially, the 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 the
Depositary.

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     If at any time the Depositary for a Global Note (i) notifies the Company that it is unwilling
or unable to continue as Depositary for such Note or (ii) ceases to be registered as a clearing
agency under the Exchange Act, the Company may appoint a successor Depositary with respect to such
Global Note. If (1) a successor Depositary for such Global Note is not appointed by the Company
within ninety (90) days after the Company receives such notice of the Depositary ceasing to be a
registered clearing agency or (2) an Event of Default has occurred and is continuing and the Note
Registrar has received a request from the owner of a beneficial interest in any Global Note for the
issuance of Notes in definitive form in exchange for all or a portion of such interest, the Company
will execute, and the Trustee, upon receipt of an Officers’ Certificate for the authentication and
delivery of Notes, will authenticate and deliver Notes in definitive form in an aggregate principal
amount equal to the principal amount of such interest in such Global Note, in exchange for such
Global Note, and such Global Note shall be reduced by the aggregate principal amount of such
interest so exchanged.

     Definitive Notes issued in exchange for all or a part of the Global Note pursuant to this
Section 2.05(d) 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 definitive
Notes to the persons in whose names such definitive 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 standing procedures and instructions existing between the Depositary and the Custodian. At
any time prior to such cancellation, if any interest in a Global Note is exchanged for definitive
Notes, converted, canceled, repurchased or transferred to a transferee who receives definitive
Notes therefor or any definitive Note is exchanged or transferred for part of such Global Note, the
principal amount of such Global Note shall, in accordance with the standing procedures and
instructions existing between the Depositary and the Custodian, be appropriately reduced or
increased, as the case may be, and an endorsement shall be made on such Global Note, by the Trustee
or the Custodian, at the direction of the Trustee, to reflect such reduction or increase.

     (e) Every Note that bears or is required under this Section 2.05(e) to bear the legend set
forth in this Section 2.05(e) (the “Restricted Securities”) shall be subject to the restrictions on
transfer set forth in this Section 2.05(e) (including those set forth in the legend below) unless
such restrictions on transfer shall be waived by written consent of the Company, and the Holder of
each such Restricted Security, by such Noteholder’s acceptance thereof, agrees to be bound by all
such restrictions on transfer. As used in Section 2.05(e), the term “transfer” means any sale,
pledge, loan, transfer or other disposition whatsoever of any Restricted Security or any interest
therein.

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     Until the date (the “Resale Restriction Termination Date”) that is the later of (1) one year
after the last date of original issuance of such Note, or such shorter period of time as permitted
by Rule 144 under the Securities Act or any successor provision thereto, and (2) such later date,
if any, as may be required by applicable law, any certificate evidencing such Note (and all
securities issued in exchange therefor or substitution thereof) shall bear a legend in
substantially the following form (unless such Note has been sold 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 written notice thereof to the Trustee):

     THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND THE RULES
AND REGULATIONS PROMULGATED THEREUNDER (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD,
PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS
ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER:

     (1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED
INSTITUTIONAL BUYER” (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT
IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND

     (2) AGREES FOR THE BENEFIT OF THE COMPANY THAT IT WILL NOT OFFER, SELL, PLEDGE OR
OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO THE DATE THAT
IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE HEREOF OR SUCH SHORTER
PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY SUCCESSOR
PROVISION THERETO, AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW,
EXCEPT:

     (A) TO CADENCE DESIGN SYSTEMS, INC. (THE “COMPANY”) OR ANY SUBSIDIARY
THEREOF, OR

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

     (C) TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER
THE SECURITIES ACT, OR

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     (D) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER
THE SECURITIES ACT OR ANY SIMILAR PROVISION OF THE SECURITIES ACT.

     PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH (2)(D) ABOVE, THE COMPANY AND THE
TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER
EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING
MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION
IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT.

     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 or as to conditions for
removal of the foregoing legend set forth therein have been satisfied 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(e). If the Restricted Security
surrendered for exchange is represented by a Global Note bearing the legend set forth in this
Section 2.05(e), the principal amount of the legended Global Note shall be reduced by the
appropriate principal amount and the principal amount of a Global Note without the legend set forth
in this Section 2.05(e) shall be increased by an equal principal amount. If a Global Note without
the legend set forth in this Section 2.05(e) is not then outstanding, the Company shall execute and
the Trustee shall authenticate and deliver an unlegended Global Note to the Depositary. The
Company shall promptly notify the Trustee upon the occurrence of the Resale Restriction Termination
Date and promptly after a registration statement, if any, with respect to the Notes has been
declared effective under the Securities Act.

     (f) Any Note that, prior to the Resale Restriction Termination Date, is purchased or owned by
the Company or any Affiliate thereof may not be resold by the Company or such Affiliate unless
registered under the Securities Act or resold pursuant to an exemption from the registration
requirements of the Securities Act in a transaction which results in such Notes, no longer being
“Restricted Securities” (as defined under Rule 144); provided, however, that this Section shall not
apply to any Notes that have previously been sold pursuant to an effective registration statement
or under Rule 144.

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     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
delivery by the Company of a Company Order the Trustee or an authenticating agent appointed by the
Trustee shall authenticate and deliver, a new Note of like tenor (including the same date of
issuance) and principal amount, bearing a 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. Upon the issuance of any substituted 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 which has matured or is about to mature or has been tendered for repurchase
upon a Fundamental Change or for conversion into cash shall become mutilated or be destroyed, lost
or stolen, the Company may, in its sole discretion, instead of issuing a substitute Note in
exchange and substitution for the mutilated Note, or in lieu of a destroyed, lost or stolen Note,
pay or authorize the payment of the amount otherwise due upon such repurchase or conversion
(without surrender thereof except in the case of a mutilated Note), as the case may be, if the
applicant for such payment shall furnish to the Company, to the Trustee and, if applicable, to any
Paying Agent or Conversion 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
payment in lieu of 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

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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 Notes in certificated form, the
Company may execute and the Trustee or an authenticating agent appointed by the Trustee shall, upon
delivery by the Company of 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 Notes in certificated form 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 Notes in certificated form. Without unreasonable delay the Company will
execute and deliver to the Trustee or such authenticating agent Notes in certificated form (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 3.02 and the Trustee or such authenticating agent shall authenticate and deliver in
exchange for such temporary Notes an equal aggregate principal amount of Notes in certificated
form. 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 Notes in certificated form
authenticated and delivered hereunder.

     Section 2.08. Cancellation of Notes Paid, Converted, etc.. All Notes surrendered for the
purpose of payment, repurchase, conversion, exchange or registration of transfer, shall, if
surrendered to the Company or any Paying Agent or any Note Registrar or any Conversion Agent, be
surrendered to the Trustee and promptly canceled by it, or, if surrendered to the Trustee, shall be
promptly canceled by it, and no Notes shall be issued in lieu thereof except as expressly permitted
by any of the provisions of this Indenture. The Trustee shall destroy canceled Notes in accordance
with its customary procedures and, after such destruction, shall deliver a certificate of such
destruction to the Company upon delivery by the Company of a Company Order. If the Company shall
acquire any of the Notes, such acquisition shall not operate as 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 notices to Holders as a
convenience to Holders of the Notes;

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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 in such notice and that reliance may be placed
only on the other identification numbers printed on the Notes. The Company will promptly notify
the Trustee in writing of any change in the CUSIP numbers.

     Any Notes that are, when issued, Restricted Securities shall be issued with a restricted CUSIP
number. Until such time as the Company notifies the Trustee to remove the restrictive legend
specified in Section 2.05(e) from such Notes, the restricted CUSIP shall be the CUSIP number for
such Notes. At such time as the Company notifies the Trustee to remove the restrictive legend
specified in Section 2.05(e) from such Notes, such legend shall for all purposes of this Indenture
and the Notes (including this Section 2.09) be deemed removed from any such Global Notes and an
unrestricted CUSIP number shall be deemed to be the CUSIP number for such Notes.

     Section 2.10. Additional Notes, Repurchases. The Company may, without the consent of the
Noteholders and notwithstanding Section 2.01, reopen the Notes and issue Additional Notes hereunder
with the same terms (except for the date on which interest begins to accrue in respect of such
Additional Notes) and with the same CUSIP number as the Initial Notes hereunder in an unlimited
aggregate principal amount, which will form the same series with the Initial Notes, provided that
no such Additional Notes may be issued unless fungible with the Initial Notes for U.S. federal
income tax purposes. The Company may also from time to time repurchase Notes in tender offers,
open market purchases or negotiated transactions without prior notice to Noteholders. Any Notes
repurchased by the Company shall be cancelled pursuant to Section 2.08 (and, if not cancelled by
the Company shall be deemed to be cancelled) and be deemed to be no longer outstanding under this
Indenture.

ARTICLE 3

Particular Covenants of the Company

     Section 3.01. Payment of Principal and Interest. The Company covenants and agrees that it
will cause to be paid the principal of and accrued and unpaid Interest on each of the Notes and if
applicable, payment of the cash payable upon conversion of the Notes, at the places, at the
respective times and in the manner provided herein and in the Notes. Each installment of accrued
and unpaid Interest on the Notes due on any Interest Payment Date may be paid by mailing checks for
the amount payable to or upon the written order of the Noteholders entitled thereto as they shall
appear on the registry books of the Company, provided that, with respect to any Noteholder with an
aggregate principal amount in excess of $1,000,000, at the application of such Holder in writing to
the Note Registrar not later than the relevant record date accrued and unpaid Interest on such
Holder’s Notes shall be paid by wire transfer in

24

 

immediately available funds to such Holder’s
account in the United States
supplied by such Holder from time to time to the Trustee and Paying Agent (if different from
Trustee); provided further that payment of accrued and unpaid Interest made to the Depositary shall
be paid by wire transfer in immediately available funds in accordance with such wire transfer
instructions and other procedures provided by the Depositary from time to time.

     Section 3.02. Maintenance of Office or Agency. The Company will maintain an office or agency
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 may change the Paying Agent without prior notice to the Noteholders but with notice to the
initial Paying Agent and the Company may act as Paying Agent. The Company will give prompt written
notice to the Trustee of the location, and any change in the location, of such office or agency not
designated or appointed by the Trustee. 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.

     The Company may also from time to time designate one or more other offices or agencies where
the Notes may be presented or surrendered for any or all such purposes and may from time to time
rescind such designations. 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 or agency of the
Trustee in the Borough of Manhattan, The City of New York shall be considered as the initial office
or agency of the Company for each of the aforesaid purposes.

     So long as the Trustee is the Note Registrar, the Trustee (and any successor Trustee, upon
becoming Trustee) agrees to mail, or cause to be mailed, the notices set forth in Section 6.10(a),
and any successor Trustee, upon becoming Trustee, agrees to mail or cause to be mailed, the notices
set forth in the third paragraph of Section 6.11.

     Section 3.03. 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 6.10, a Trustee, so that there shall at all times be a Trustee hereunder.

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     Section 3.04. Provisions as to Paying Agent.

     (a) If the Company shall appoint a Paying Agent other than the Trustee or if the Trustee shall
appoint such a Paying Agent, 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 3.04,

     (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 (whether such sums have been paid to it by the
Company or by any other obligor on the Notes) in trust for the benefit of the Holders of
the Notes;

     (ii) that it will give the Trustee notice of any failure by the Company (or by any
other obligor on the Notes) to make any payment of the principal 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), accrued and unpaid Interest so becoming due and will notify the
Trustee in writing of any failure to take such action and of any failure by the Company (or any
other obligor under the Notes) to make any such payment on the Notes, when the same shall become
due and payable.

     (c) Anything in this Section 3.04 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 or cause to be paid to the Trustee all sums held in trust by the Company or any Paying
Agent hereunder as required by this Section 3.04, such sums to be held by the Trustee upon the
trusts

26

 

herein contained and upon such payment by the Company or any Paying Agent to
the Trustee, the Company or such Paying Agent shall be released from all further liability
with respect to such sums.

     (d) Anything in this Section 3.04 to the contrary notwithstanding, the agreement to hold sums
in trust as provided in this Section 3.04 is subject to Section 11.03 and Section 11.04.

     Section 3.05. Existence. Subject to Article 10, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate existence.

     Section 3.06. Rule 144A Information Requirement. 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 shall, at
such time, constitute “restricted securities” within the meaning of Rule 144(a)(3) under the
Securities Act, promptly provide to the Trustee and shall, upon written request, provide to any
Noteholder, beneficial owner or prospective purchaser of such Notes 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. The Company shall take such further action as any Holder or
beneficial owner of such Notes may reasonably request to the extent from time to time required to
enable such Noteholder or beneficial owner to sell such Notes in accordance with Rule 144A.

     Section 3.07. 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 which
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 which 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 3.08. Compliance Certificate; Statements as to Defaults. The Company shall deliver
to the Trustee within 120 calendar days after the end of each fiscal year of the Company (beginning
with the fiscal year ending on January 1, 2011) an Officers’ Certificate stating whether or not
each signer thereof has knowledge of any Event of Default or Default by the Company under this
Indenture during such fiscal year and, if so, specifying each such failure and the nature thereof.

27

 

     In addition, the Company shall deliver to the Trustee, as soon as practicable and in any event
within 60 days after the Company becomes aware of
the occurrence of any Event of Default or Default, an Officers’ Certificate setting forth the
details of such Event of Default or Default, its status and the action which the Company is taking
or proposes to take with respect thereto.

     Section 3.09. Further Instruments and Acts. Upon request of the Trustee, the Company will
execute and deliver such further instruments and do such further acts as may be reasonably
necessary or proper to carry out more effectively the purposes of this Indenture.

ARTICLE 4

Lists of Noteholders and Reports by the Company and the Trustee

     Section 4.01. Lists of Noteholders. The Company covenants and agrees that it will furnish or
cause to be furnished to the Trustee, semi-annually, not more than fifteen (15) days after each May
15 and November 15 in each year beginning with November 15, 2010, and May 15, 2011, and at such
other times as the Trustee may request in writing, within thirty (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 Noteholders as of a date not more
than fifteen (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 4.02. Preservation and Disclosure of Lists.

     (a) The Trustee shall preserve, in as current a form as is reasonably practicable, all
information as to the names and addresses of the Noteholders contained in the most recent list
furnished to it as provided in Section 4.01 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
4.01 upon receipt of a new list so furnished.

     (b) The rights of Noteholders to communicate with other Noteholders with respect to their
rights under this Indenture or under the Notes and the corresponding rights and duties of the
Trustee, shall be as provided by the Trust Indenture Act.

     (c) Every Noteholder, by receiving and holding the same, agrees with the Company and the
Trustee that neither the Company nor the Trustee nor any agent of either of them shall be held
accountable by reason of any disclosure of information as to names and addresses of Noteholders
made pursuant to the Trust Indenture Act.

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     Section 4.03. Reports by Trustee.

     (a) Within sixty (60) days after May 1 of each year commencing with May 1, 2011, the Trustee
shall transmit to Noteholders such reports dated as of May 1 of each year in which such reports are
made concerning the Trustee and its actions under this Indenture as would be required under
Sections 313(a) and (b) of the Trust Indenture Act (whether or not this Indenture is qualified
thereunder) at the times and in the manner provided pursuant thereto.

     (b) A copy of such reports shall, at the time of such transmission to Noteholders, be filed by
the Trustee with each stock exchange and automated quotation system upon which the Notes are
listed, if any, and with the Company. The Company will notify the Trustee in writing within a
reasonable time when the Notes are listed on any stock exchange or automated quotation system and
when any such listing is discontinued.

     Section 4.04. Reports by Company.

     (a) The Company shall file with the Trustee within 15 days after the same are required to be
filed with the Commission, 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 (giving effect to any grace
period provided by Rule 12b-25 under the Exchange Act). Any such document or report that the
Company files with the Commission via the Commission’s Electronic Data Gathering, Analysis and
Retrieval (“EDGAR”) system (or any successor thereto) shall be deemed to be filed with the Trustee
for purposes of this Section 4.04 as of the time such documents are filed via the EDGAR system.

     (b) Delivery of such reports, information and documents 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 exclusively on an Officers’ Certificate).

ARTICLE 5

Defaults and Remedies

     Section 5.01. Events of Default. The following events shall be events of default (each, an
“Event of Default”) with respect to the Notes:

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

     (b) default in the payment of principal of any Note when due and payable on the Maturity Date,
upon required repurchase or upon declaration;

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     (c) failure by the Company to comply with its obligation to convert the Notes into cash, upon
exercise of a holder’s conversion right;

     (d) failure by the Company to comply with its obligations under Section 10.01;

     (e) failure by the Company to issue a Fundamental Change Repurchase Company Notice in
accordance with Section 14.01(b) when due or to provide a Make-Whole Fundamental Change Notice
pursuant to Section 13.02(b).

     (f) failure by the Company for 60 days to comply with any of its other agreements (other than
a covenant or warranty or Default in whose performance or whose breach is elsewhere in this Section
specifically provided for) contained in the Notes or the Indenture after written notice of such
Default from the Trustee at the written direction of the Holders of at least 25% in principal
amount of the Notes then outstanding, or from the Holders of at least 25% in principal amount of
the Notes then outstanding, has been received by the Company;

     (g) default by the Company or any Subsidiary of the Company in the payment of the principal or
interest on any mortgage, agreement or other instrument under which there may be outstanding, or by
which there may be secured or evidenced, any debt for money borrowed in excess of $50 million in
the aggregate of the Company and/or any such Subsidiary (other than debt for borrowed money secured
only by the real property to which the debt relates and which is non-recourse to the Company or its
Subsidiaries), whether such debt now exists or shall hereafter be created, which default results in
such debt becoming or being declared due and payable, and such acceleration shall not have been
cured, waived, rescinded or annulled within 30 days after written notice of such acceleration has
been received by the Company or such Subsidiary;

     (h) the Company shall commence a voluntary case or other proceeding seeking liquidation,
reorganization or other relief with respect to the Company or any of its Significant Subsidiaries
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 of its Significant Subsidiaries or any substantial part of the property of the
Company or any of its Significant Subsidiaries, 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

     (i) an involuntary case or other proceeding shall be commenced against the Company or any of
its Significant Subsidiaries seeking liquidation, reorganization or other relief with respect to
the Company 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 of its Significant Subsidiaries or any substantial

30

 

part of the property of the Company and its Significant Subsidiaries, taken as a whole, and
such involuntary case or other proceeding shall remain undismissed and unstayed for a period of
ninety (90) consecutive days.

     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 5.01(h) or Section 5.01(i) with respect to the
Company), unless the principal of all of the Notes shall have already become due and payable, the
Trustee may, by notice in writing to the Company, or the Holders of at least 25% in aggregate
principal amount of the Notes then outstanding determined in accordance with Section 7.04 may, by
notice in writing to the Company and to the Trustee, and the Trustee, upon the request of such
Holders, by notice in writing to the Company shall, declare 100% of the principal of, and accrued
and unpaid Interest on, all the Notes to be due and payable immediately, and upon any such
declaration the same shall become and shall be immediately due and payable, anything in this
Indenture or in the Notes contained to the contrary notwithstanding. If an Event of Default
specified in Section 5.01(h) or Section 5.01(i) occurs and is continuing with respect to the
Company, the principal of all the Notes and accrued and unpaid Interest shall be immediately due
and payable. This provision, 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 and amounts due to the Trustee pursuant
to Section 6.06, and if (1) rescission and annulment of the declaration of acceleration would not
conflict with any judgment or decree of a court of competent jurisdiction and (2) any and all
Events of Defaults under this Indenture, other than the nonpayment of principal of and accrued and
unpaid Interest on Notes that shall have become due solely by such acceleration, shall have been
cured or waived pursuant to Section 5.08, then and in every such case 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.

     In case the Trustee shall have proceeded to enforce any right under this Indenture and such
proceedings shall have been discontinued or abandoned

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because of such waiver or rescission and
annulment or for any other reason or
shall have been determined adversely to the Trustee, then and in every such case the Company,
the Noteholders, 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 Noteholders, and the Trustee shall continue as though no such proceeding
had been instituted.

     Section 5.02. Additional Interest. (a) Notwithstanding anything in this Indenture or in the
Notes to the contrary, to the extent the Company elects, the sole remedy for an Event of Default
relating to the Company’s failure to comply with its obligations as set forth in Sections 3.06 and
4.04 shall, for the first 180 days 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:

     i. 0.25% per annum of the principal amount of the Notes outstanding for each day during the
90-day period beginning on, and including, the occurrence of such an Event of Default during which
such Event of Default is continuing; and

     ii. 0.50% per annum of the principal amount of the Notes outstanding for each day during the
90-day period beginning on, and including, the 91st day following, and including, the occurrence of
such an Event of Default during which such Event of Default is continuing.

     Additional Interest payable pursuant to this Section 5.02(a) shall be in addition to, not in
lieu of, any Additional Interest payable pursuant to Section 5.02(b) or Section 5.02(c). If the
Company so elects to pay Additional Interest pursuant to this Section 5.02(a), such Additional
Interest shall be payable in the same manner and on the same dates as Regular Interest on the
Notes. On the 181st 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 3.06 or Section 4.04, as
applicable, is not cured or waived prior to such 181st day), the Notes will be subject to
acceleration as provided in Section 5.01. In the event the Company does not elect to pay
Additional Interest following an Event of Default in accordance with this Section 5.02(a), the
Notes shall be subject to acceleration as provided in Section 5.01. Nothing contained in this
Section 5.02 shall affect the rights of Noteholders in the event of the occurrence of any other
Event of Default.

     In order to elect to pay Additional Interest as the sole remedy during the first 180 days
after the occurrence of any Event of Default relating to the Company’s failure to comply with its
obligations as set forth in Sections 3.06 and 4.04, the Company must notify all Noteholders, the
Trustee and the Paying Agent of such election prior to the beginning of such 180-day period. Upon
the failure to timely give such notice, the Notes shall be immediately subject to acceleration as
provided in Section 5.01.

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     (b) If, at any time during the six-month period beginning on, and including, the date which is
six months after the last date of original issuance of
the Notes, 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), the
Company shall pay Additional Interest on the Notes. Additional Interest will accrue on the Notes
at the rate of 0.50% per annum of the principal amount of Notes outstanding for each day during
such period for which such failure to file has occurred, ending on the date that is one year after
the last original issuance date of such Notes. As used in this Section 5.02(b), documents or
reports that the Company is required to “file” with the Commission pursuant to Section 13 or 15(d)
of the Exchange Act does not include documents or reports that the Company furnishes to the
Commission pursuant to Section 13 or 15(d) of the Exchange Act.

     (c) If, and for so long as, the legend on the Notes specified in Section 2.05(e) has not been
removed or the Notes are not otherwise freely tradable by holders other than the Company’s
Affiliates (without restrictions pursuant to the terms of this Indenture or the Notes) as of the
365th day after the last date of original issuance of the Notes, the Company shall pay Additional
Interest on the Notes at a rate equal to 0.50% per annum of the principal amount of Notes
outstanding until the Notes are freely tradable by Noteholders other than the Company’s Affiliates
(without restrictions pursuant to the terms of this Indenture or the Notes).

     (d) Any Additional Interest payable pursuant to subsections (b) or (c) shall be payable in
arrears on each Interest Payment Date following accrual in the same manner as Regular Interest on
the Notes, and will be in addition to any Additional Interest that may accrue at the Company’s
election as the sole remedy relating to the failure to comply with its reporting obligations
pursuant to Section 5.02(a).

     (e) If Additional Interest is payable by the Company pursuant to this Section 5.02, the
Company shall deliver to the Trustee an Officers’ 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 Officers’ Certificate setting forth the particulars of
such payment.

     Section 5.03. Payments of Notes on Default; Suit Therefor. In the event that the Trustee
has, either upon its own initiative or upon the request of the Holders of not less than 25% in
aggregate principal amount of the Notes then outstanding, declared the principal of, and accrued
and unpaid Interest on the Notes, to be due and payable immediately in accordance with Section
5.01, and

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the Company shall have failed forthwith to pay such amounts, the Trustee, in its own name
and as trustee of an express trust, after being furnished suitable
indemnity pursuant to Section 6.01, shall be entitled and empowered to institute any actions
or proceedings at law or in equity for the collection of the sums so due and unpaid (including such
further amounts as shall be sufficient to cover the costs and expenses of collection, including
compensation to the Trustee, its agents, attorneys and counsel, and any expenses or liabilities
incurred by the Trustee hereunder other than through its negligence or bad faith), and may
prosecute any such action or proceeding to judgment or final degree, and may enforce any such
judgment or final decree against the Company or any other obligor on the Notes and collect in the
manner provided by law out of the property of the Company or any other obligor on the Notes
wherever situated the monies adjudged or decreed to be payable.

     In case there shall be pending proceedings for the bankruptcy or for the reorganization of the
Company or any Significant Subsidiary, as provided in Section 5.01(h) or Section 5.01(i), 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 5.03, 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 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 compensation, expenses, disbursements and advances of the Trustee, its
agents and counsel) and of the Noteholders 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 the Trustee under Section 6.06; and any
receiver, assignee or trustee in bankruptcy or reorganization, liquidator, custodian or similar
official is hereby authorized by each of the Noteholders 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 Noteholders, to pay to the Trustee any amount due it for compensation,
expenses, advances and disbursements, including agents and counsel fees, and including any other
amounts due to the Trustee under Section 6.06 hereof, incurred by it up to the date of such
distribution. To the extent that such payment of 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 which 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.

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

     Section 5.04. Application of Monies Collected by Trustee. Any monies collected by the
Trustee pursuant to this Article 5 with respect to the Notes shall be applied in the order
following, 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 6.06;

     Second, in case the principal of the outstanding Notes shall not have become due and be
unpaid, to the payment of Interest on the Notes in default in the order of the maturity of the
installments of such Interest;

     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, payments in
respect of the Conversion Obligation and Cash Make-Whole Premium) then owing and unpaid upon the
Notes for principal and Interest, 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 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 and accrued and unpaid Interest; and

     Fourth, to the payment of the remainder, if any, to the Company or any other Person lawfully
entitled thereto.

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     Section 5.05. Proceedings by Noteholders. 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 such Holder previously shall have given to the Trustee written
notice of an Event of Default and of the continuance thereof, as hereinbefore provided, and unless
also the Holders of not less than 25% in aggregate principal amount of the Notes then outstanding
shall have made written request upon the Trustee to institute such action, suit or proceeding in
its own name as Trustee hereunder and 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, and
the Trustee for sixty (60) days after its receipt of such notice, request and offer of security or
indemnity, shall have neglected or refused to institute any such action, suit or proceeding and 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 in principal amount of the Notes outstanding
pursuant to Section 5.08; 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). For the protection and
enforcement of this Section 5.05, 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 Noteholder to receive payment of the principal of, and accrued and unpaid Interest on, such
Note, or the Fundamental Change Repurchase Price, if applicable, on or after the respective due
dates expressed in such Note, or the Fundamental Change Repurchase Date, or to institute suit for
the enforcement of any such payment on or after such respective dates against the Company shall not
be impaired or affected without the consent of such Noteholder.

     Anything in this Indenture or the Notes to the contrary notwithstanding, the Holder of any
Note, without the consent of either the Trustee or the Holder of any other Note, in his own behalf
and for his own benefit, may enforce, and may institute and maintain any proceeding suitable to
enforce, his rights to payment of amounts due upon conversion as provided herein.

     Section 5.06. Proceedings by Trustee. In case of an Event of Default the Trustee may in its
discretion 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

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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 5.07. Remedies Cumulative and Continuing. Except as provided in the last paragraph
of Section 2.06, all powers and remedies given by this Article 5 to the Trustee or to the
Noteholders shall, to the extent permitted by law, be deemed cumulative and not exclusive of any
other power or remedy given hereunder or otherwise 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 any acquiescence therein; and, subject to the provisions of Section 5.05, every power
and remedy given by this Article 5 or by law to the Trustee or to the Noteholders may be exercised
from time to time, and as often as shall be deemed expedient by the Trustee or by the Noteholders.

     Section 5.08. Direction of Proceedings and Waiver of Defaults by Majority of Noteholders.
The Holders of a majority in aggregate principal amount of the Notes at the time outstanding
determined in accordance with Section 7.04 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 (a) such direction
shall not be in conflict with any rule of law or with this Indenture, and (b) 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 7.04 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 on, or the principal of, the Notes when due which has not been cured
pursuant to the provisions of Section 5.01, (ii) a failure by the Company to deliver cash upon
conversion of the Notes, or (iii) a Default in respect of a covenant or provisions hereof which
under Article 9 cannot be modified or amended without the consent of each Holder of an outstanding
Note affected thereby. 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 5.08, said Default or Event of Default shall for all purposes of the Notes and this
Indenture be deemed to have

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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 5.09. Notice of Defaults. The Trustee shall, within ninety (90) days after the
occurrence and continuance of a Default of which a Responsible Officer has actual knowledge, mail
to all Noteholders as the names and addresses of such Holders appear upon the Note Register, notice
of all Defaults known to such Responsible Officer, unless such Defaults shall have been cured or
waived before the giving of such notice; and provided that, except in the case of a Default in the
payment of the principal of, and accrued and unpaid Interest on, any of the Notes, in any such
event the Trustee shall be protected in withholding such notice if and so long as a committee of
trust officers of the Trustee in good faith determine that the withholding of such notice is in the
interests of the Noteholders.

     Section 5.10. Undertaking to Pay Costs. All parties to this Indenture agree, and each Holder
of any Note by his 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, 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 5.10 (to the
extent permitted by law) shall not apply to any suit instituted by the Trustee, to any suit
instituted by any Noteholder, or group of Noteholders, holding in the aggregate more than 10% in
principal amount of the Notes at the time outstanding determined in accordance with Section 7.04,
or to any suit instituted by any Noteholder for the enforcement of the payment of the principal of,
and accrued and unpaid Interest on, any Note on or after the due date expressed in such Note or in
the Indenture or to any suit for the enforcement of the payment of the Fundamental Change
Repurchase Price on or after the Fundamental Change Repurchase Date or for payment of amounts due
upon conversion in accordance with the provisions of Article 13.

ARTICLE 6

Concerning the Trustee

     Section 6.01. 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 which 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 (which 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

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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 provided to the Trustee indemnity or security
against loss, liability or expense satisfactory to the Trustee.

     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 or its own willful
misconduct, except that

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

     (i) the duties and obligations of the Trustee shall be determined solely by the
express provisions of this Indenture and, to the extent it has been qualified thereunder,
the Trust Indenture Act, 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 and/or the Trust Indenture Act
against the Trustee; and

     (ii) in the absence of bad faith and willful misconduct 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 which 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 on their face to the requirements of this Indenture;

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

     (c) the Trustee shall not be liable with respect to any action taken or omitted to be taken by
it in good faith and either (i) believed by it to be authorized or within the discretion or rights
or powers conferred upon it by this Indenture, including in accordance with the direction from
Holders of at least 25% in aggregate principal amount of the outstanding Notes pursuant to Sections
5.01, 5.03 and 5.05, or (ii) in accordance with the direction of the Holders of not less than a
majority in principal amount of the Notes at the time outstanding determined as provided in
Section 7.04 relating to the time, method and place of

39

 

conducting any proceeding for any remedy
available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this
Indenture;

     (d) 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;

     (e) 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 effected by the Trustee based upon information and/or calculations
provided by the Company or any Paying Agent or any records maintained by any co-Note Registrar with
respect to the Notes;

     (f) 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 such
Responsible Officer of the Trustee had actual knowledge of such event;

     (g) 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. In no event shall the Trustee be
liable for the selection of investments or for investment losses incurred thereon or for losses
incurred as a result of the liquidation of any such investments prior to its stated maturity or the
failure of the party directing such investments prior to its stated maturity 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

     (h) in the event that the Trustee is also acting as Custodian, Note Registrar, Paying Agent or
Conversion Agent hereunder, the rights and protections afforded to the Trustee pursuant to this
Article 6 shall also be afforded to it in its capacity as such.

     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 6.02. Reliance on Documents, Opinions, etc. Except as otherwise provided in Section
6.01:

     (a) the Trustee may conclusively rely and shall be fully protected in acting upon any
resolution, certificate, statement, instrument, opinion, report, notice, request, consent, order,
bond, note or other paper or document believed by

40

 

it in good faith to be genuine and to have been
signed or presented by the proper party or parties;

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

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

     (d) the Trustee shall be under no obligation to exercise any of the rights or powers vested in
it by this Indenture at the request, order or direction of any of the Noteholders pursuant to the
provisions of this Indenture, unless such Noteholders shall have provided to the Trustee security
or indemnity satisfactory to it against the costs, expenses and liabilities which may be incurred
therein or thereby;

     (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, consent,
order, bond, note 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; provided, however,
that if the payment within a reasonable time to the Trustee of the costs, expenses or liabilities
likely to be incurred by it in the making of such investigation is, in the opinion of the Trustee,
not reasonably assured to the Trustee by the security afforded to it by the terms of this
Indenture, the Trustee may require indemnity satisfactory to the Trustee from the Noteholders
against such expenses or liability as a condition to so proceeding; the reasonable expenses of
every such examination shall be paid by the Company or, if paid by the Trustee or any predecessor
Trustee, shall be repaid by the Company upon demand;

     (f) 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;

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

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     (h) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the
truth of the statements and the correctness of the opinions expressed
therein, upon Officers’ Certificates or Opinions of Counsel furnished to the Trustee and
conforming to the requirements of this Indenture; but in the case of any such certificates or
opinions which 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 on
their face to the requirements of this Indenture (but need not confirm or investigate the accuracy
of mathematical calculations or other facts stated therein); and

     (i) the Trustee may request that the Company deliver an Officers’ Certificate setting forth
the names of individuals and/or titles of officers authorized at such time to take specified
actions pursuant to this Indenture, which Officers’ Certificate shall be signed by any person
authorized to sign Officers’ Certificate, including any person specified as so authorized in any
such certificate previously delivered and not superseded.

     In no event shall the Trustee be liable for any 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 other than through the
Trustee’s willful misconduct or gross negligence. 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 shall have been given to the Trustee by the Company or by any
Holder of the Notes at the Corporate Trust Office of the Trustee, and such notice references the
Notes and this Indenture.

     Section 6.03. 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. The Trustee shall not be responsible or liable for any loss suffered
in connection with any investment of funds made by it in accordance with this Indenture or at the
direction of the Company. Except for information provided by the Trustee concerning the Trustee,
the Trustee shall have no responsibility for any information in any offering memorandum, prospectus
or other disclosure material distributed with respect to the Notes.

     Section 6.04. Trustee, Paying Agents, Conversion Agents or Registrar May Own Notes. The
Trustee, any Paying Agent, any Conversion Agent or Note Registrar, in its individual or any other
capacity, may become the owner or

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pledgee of Notes with the same rights it would have if it were
not Trustee, Paying Agent, Conversion Agent or Note Registrar.

     Section 6.05. Monies to be Held in Trust. Subject to the provisions of Section 11.04, all
monies 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 held by the Trustee in trust hereunder need
not be segregated from other funds except to the extent required by law. The Trustee shall be
under no liability for interest on any money received by it hereunder except as may be agreed from
time to time by the Company and the Trustee.

     Section 6.06. 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, 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 promptly 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
(including the 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 may arise
from its gross negligence, willful misconduct or bad faith. The Company also covenants and agrees
to indemnify the Trustee in any capacity under this Indenture and any other document or transaction
entered into in connection herewith and its agents and any authenticating agent for, and to hold
them harmless against, any loss, 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 6.06 to compensate or indemnify the Trustee and to
pay or reimburse the Trustee for expenses, disbursements and advances shall be secured by a lien
prior to that of the Notes upon all property and funds held or collected by the Trustee as such,
except, subject to the effect of Section 5.04, funds held in trust herewith for the benefit of the
Holders of particular Notes prior to the date of the accrual of such unpaid compensation or
identifiable claim. The Trustee’s right to receive payment of any amounts due under this Section
6.06 shall not be subordinate to any other liability or Indebtedness of the Company. The
obligation of the Company under this Section 6.06 shall survive the satisfaction and discharge of
this Indenture and the earlier resignation or removal or the Trustee. The Company need not pay for
any settlement made without its consent, which consent shall not be unreasonably withheld or
delayed. The indemnification provided in this Section 6.06 shall extend to the officers,
directors, agents and employees of the Trustee.

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     When the Trustee and its agents and any authenticating agent incur expenses or render services
after an Event of Default specified in Section 5.01(h) or Section 5.01(i) occurs, the expenses and
the compensation for the services are
intended to constitute expenses of administration under any bankruptcy, insolvency or similar
laws.

     Section 6.07. Officers’ Certificate as Evidence. Whenever in the administration of the
provisions of this Indenture the Trustee shall deem it necessary or desirable that a matter be
proved or established prior to taking or omitting any action hereunder, such matter (unless other
evidence in respect thereof be herein specifically prescribed) may, in the absence of gross
negligence, willful misconduct, recklessness and bad faith on the part of the Trustee, be deemed to
be conclusively proved and established by an Officers’ Certificate delivered to the Trustee, and
such Officers’ Certificate, in the absence of gross negligence, willful misconduct, recklessness
and bad faith on the part of the Trustee, shall be full warrant to the Trustee for any action taken
or omitted by it under the provisions of this Indenture upon the faith thereof.

     Section 6.08. Conflicting Interests of Trustee. If the Trustee has or shall acquire a
conflicting interest within the meaning of the Trust Indenture Act, the Trustee shall either
eliminate such interest or resign, to the extent and in the manner provided by, and subject to the
provisions of, the Trust Indenture Act and this Indenture.

     Section 6.09. 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 6.10. 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 Noteholders at their addresses as they shall appear on
the Note Register. Upon receiving such notice of resignation, the Company shall promptly, but in
no event later than 60 days after such resignation or removal, 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 sixty (60) days
after the retiring Trustee resigns or is removed, the resigning Trustee may petition any court of
competent jurisdiction

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for the appointment of a successor Trustee, or any Noteholder who has been a
bona fide Holder of a Note or Notes for at least six months may, subject to the provisions of
Section 6.10, on behalf of himself 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) (x) At any time at which no Default or Event of Default has occurred and is continuing or
(y) in case at any time any of the following shall occur:

     (i) the Trustee shall fail to comply with Section 6.08 within a reasonable time after
written request therefor by the Company or by any Noteholder who has been a bona fide
Holder of a Note or Notes for at least six (6) months, or

     (ii) the Trustee shall cease to be eligible in accordance with the provisions of
Section 6.09 and shall fail to resign after written request therefor by the Company or by
any such Noteholder, or

     (iii) 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 any such case of (x) or (y), 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 this Section 6.10, any Noteholder who
has been a bona fide Holder of a Note or Notes for at least six (6) months may, on behalf of
himself and all others similarly situated, 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.

     (c) The Holders of a majority in aggregate principal amount of the Notes at the time
outstanding, as determined in accordance with Section 7.04, may at any time remove the Trustee and
nominate a successor Trustee which shall be deemed appointed as successor Trustee unless within ten
(10) days after notice to the Company of such nomination the Company objects thereto, in which case
the Trustee so removed or any Noteholder, upon the terms and conditions and otherwise as in Section
6.10(a) provided, may petition any court of competent jurisdiction for an appointment of a
successor Trustee.

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     (d) Any resignation or removal of the Trustee and appointment of a successor Trustee pursuant
to any of the provisions of this Section 6.10 shall
become effective upon acceptance of appointment by the successor Trustee as provided in
Section 6.11.

     Section 6.11. Acceptance by Successor Trustee. Any successor Trustee appointed as provided
in Section 6.10 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 6.06, 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 lien upon all property and funds 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 6.06.

     No successor Trustee shall accept appointment as provided in this Section 6.11 unless at the
time of such acceptance such successor Trustee shall be qualified under the provisions of Section
6.08 and be eligible under the provisions of Section 6.09.

     Upon acceptance of appointment by a successor Trustee as provided in this Section 6.11, 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
Noteholders at their addresses as they shall appear on the Note Register. If the Company fails to
mail such notice within ten (10) 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.

     Section 6.12. 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

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the corporate trust business of the Trustee such
corporation or other entity shall be
qualified under the provisions of Section 6.08 and eligible under the provisions of Section
6.09.

     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 6.13. Limitation on Rights of Trustee as Creditor. If and when the Trustee shall be
or become a creditor of the Company (or any other obligor upon the Notes), the Trustee shall be
subject to the provisions of the Trust Indenture Act regarding the collection of the claims against
the Company (or any such other obligor).

     Section 6.14. 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
Noteholders 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 (3) Business Days after the date any officer of the Company 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 response to such proposal specifying the
action to be taken or omitted.

     Section 6.15. Authorization of Trustee to Take Other Action. The Trustee is hereby
authorized and directed to enter into and take any actions or deliver such consents required by or
requested under this Indenture and to take such other actions and enter into such other documents
as directed by the Holders of a majority of outstanding aggregate principal amount of the Notes
(except as expressly stated herein, including as set forth in Sections 5.01, 5.03 5.05 and

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Section 9.02). Subject to Section 9.02, if at any time any action by or the consent
of the Trustee is required under this Indenture or any other document entered into by the
Trustee at the direction of a majority of the Holders of outstanding aggregate principal amount of
the Notes, such action or consent shall be taken or given by the Trustee upon the consent to such
action by the Holders of a majority of outstanding aggregate principal amount of the Notes.

ARTICLE 7

Concerning the Noteholders

     Section 7.01. Action by Noteholders. Whenever in this Indenture it is provided that the
Holders of a specified percentage in 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 (a) by any instrument or any number
of instruments of similar tenor executed by Noteholders in person or by agent or proxy appointed in
writing, or (b) by the record of the Noteholders voting in favor thereof at any meeting of
Noteholders duly called and held in accordance with the provisions of Article 8, or (c) by a
combination of such instrument or instruments and any such record of such a meeting of Noteholders
and, except as herein otherwise expressly provided, such action shall become effective when such
instrument or instruments or such record are delivered to the Trustee and, where it is hereby
expressly required, to the Company. Proof of execution of any such instrument or record or of a
writing appointing any such agent shall be sufficient for any purpose of this Indenture and
conclusive in favor of the Trustee and the Company, if made in the manner provided in this Section.
Whenever the Company or the Trustee solicits the taking of any action by the Noteholders, the
Company or the Trustee may fix, but shall not be required to, in advance of such solicitation, a
date as the record date for determining Noteholders entitled to take such action. The record date
if one is selected shall be not more than fifteen (15) days prior to the date of commencement of
solicitation of such action. Any request, demand, authorization, direction, notice, consent,
waiver or other action by a Holder of any Note shall bind every future Holder of the same Note, and
the Holder of every Note issued upon the registration of transfer thereof or in exchange therefor
or in lieu thereof in respect of anything done, omitted, or suffered to be done by the Trustee or
the Company in reliance thereon, whether or not notation of such action is made upon such Note.

     Section 7.02. Proof of Execution by Noteholders. Subject to the provisions of Section 6.01,
Section 6.02 and Section 8.05, proof of the execution of any instrument by a Noteholder or his
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

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Registrar.
The record of any Noteholders’ meeting shall be proved in the manner provided in Section 8.06.

     Section 7.03. 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 such Note shall be registered upon the Note Register to be, and may treat such person 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
accrued and unpaid Interest on, such Note, upon conversion of such Note and for all other purposes;
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. All such payments so made to any Holder
for the time being, or upon his order, shall be valid, and, to the extent of the sum or sums so
paid, effectual to satisfy and discharge the liability for monies payable upon any such Note.
Notwithstanding anything to the contrary in this Indenture or the Notes, following an Event of
Default, any Holder 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 Holder’s right to exchange such beneficial interest for a Note
in certificated form in accordance with the provisions of this Indenture.

     Section 7.04. 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 or any other obligor on the
Notes or by any person directly or indirectly controlling or controlled by or under direct or
indirect common control with the Company or any other obligor on such Notes 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 relying on any such direction,
consent, waiver or other action, only Notes that a Responsible Officer 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 7.04 if the pledgee shall establish to the satisfaction of the
Trustee the pledgee’s right to vote such Notes and that the pledgee is not the Company, any other
obligor on the Notes or a person directly or indirectly controlling or controlled by or under
direct or indirect common control with the Company or any such other obligor. In the case of a
dispute as to such right, any decision by the Trustee taken upon the advice of counsel shall be
full protection to the Trustee. Upon request of the Trustee, the Company shall furnish to the
Trustee promptly an Officers’ 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 6.01, the Trustee shall be entitled to accept such Officers’ Certificate as

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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 7.05. Revocation of Consents; Future Holders Bound. At any time prior to (but not
after) the evidencing to the Trustee, as provided in Section 7.01, of the taking of any action by
the Holders of the percentage in 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 7.02, 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, irrespective of whether any notation in regard thereto is made upon such Note or any Note
issued in exchange or substitution therefor.

ARTICLE 8

Noteholders’ Meetings

     Section 8.01. Purpose of Meetings. A meeting of Noteholders may be called at any time and
from time to time pursuant to the provisions of this Article 8 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 and its consequences, or to take any other action authorized to be taken by
Noteholders pursuant to any of the provisions of Article 5;

     (b) to remove the Trustee and nominate a successor Trustee pursuant to the provisions of
Article 6;

     (c) to consent to the execution of an indenture or indentures supplemental hereto pursuant to
the provisions of Section 9.02; 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 8.02. Call of Meetings by Trustee. The Trustee may at any time call a meeting of
Noteholders to take any action specified in Section 8.01, to be held at such time and at such place
as the Trustee shall determine. Notice of every meeting of the Noteholders, 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 7.01, shall be mailed to

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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 twenty (20) nor more than ninety (90) days prior to the date fixed for the
meeting.

     Any meeting of Noteholders 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 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 8.03. Call of Meetings by Company or Noteholders. In case at any time the Company,
pursuant to a resolution of its Board of Directors, or the Holders of at least 10% in aggregate
principal amount of the Notes then outstanding, shall have requested the Trustee to call a meeting
of Noteholders, 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
twenty (20) days after receipt of such request, then the Company or such Noteholders may determine
the time and the place for such meeting and may call such meeting to take any action authorized in
Section 8.01, by mailing notice thereof as provided in Section 8.02.

     Section 8.04. Qualifications for Voting. To be entitled to vote at any meeting of
Noteholders 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. The only persons who shall be entitled to be present or to speak at any meeting of
Noteholders 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 8.05. Regulations. Notwithstanding any other provisions of this Indenture, the
Trustee may make such reasonable regulations as it may deem advisable for any meeting of
Noteholders, 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 Noteholders as provided in Section
8.03, in which case the Company or the Noteholders 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 principal amount of the Notes
represented at the meeting and entitled to vote at the meeting.

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     Subject to the provisions of Section 7.04, at any meeting of Noteholders each Noteholder or
proxyholder shall be entitled to one vote for each $1,000 principal amount of Notes held or
represented by him; 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 him or instruments in writing as aforesaid duly designating him as the proxy to vote
on behalf of other Noteholders. Any meeting of Noteholders duly called pursuant to the provisions
of Section 8.02 or Section 8.03 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 8.06. Voting. The vote upon any resolution submitted to any meeting of Noteholders
shall be by written ballot on which shall be subscribed the signatures of the Noteholders or of
their representatives by proxy and the 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 Noteholders 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 8.02 or 8.03, as applicable. The record shall show
the 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 8.07. No Delay of Rights by Meeting. Nothing contained in this Article 8 shall be
deemed or construed to authorize or permit, by reason of any call of a meeting of Noteholders 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 Noteholders
under any of the provisions of this Indenture or of the Notes.

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ARTICLE 9

Supplemental Indentures

     Section 9.01. Supplemental Indentures Without Consent of Noteholders. 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 that does not adversely affect
the Holders to a material extent;

     (b) to provide for the assumption by a Successor Corporation of the obligations of the Company
under the Indenture pursuant to Article 10;

     (c) to provide for uncertificated Notes in addition to or in place of certificated Notes
(provided that the uncertificated Notes are issued in registered form for purposes of Section
163(f) of the Code, or in a manner such that the uncertificated Notes are described in Section
163(f)(2)(A)(iv) and 163(f)(2)(B) of the Code, if then applicable);

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

     (e) to secure the Notes;

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

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

     (h) to comply with any requirements of the Commission in connection with the qualification of
the Indenture under the Trust Indenture Act;

     (i) to provide for a successor Trustee with respect to the Notes; or

     (j) conform the provisions of the Indenture to the “Description of Notes” in the preliminary
offering memorandum for the Notes dated June 9, 2010, as supplemented by the related pricing term
sheet.

     Upon the written request of the Company, accompanied by a Board Resolution authorizing the
execution of such supplemental indenture, 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 which may be therein contained and to accept the conveyance, transfer and assignment
of any property thereunder, but the Trustee shall not be obligated to enter into any supplemental
indenture which affects the Trustee’s own rights, duties or immunities under this Indenture or
otherwise.

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     Any supplemental indenture authorized by the provisions of this Section 9.01 may be executed
by the Company and the Trustee without the consent of the Holders of any of the Notes at the time
outstanding.

     Section 9.02. Supplemental Indentures With Consent of Noteholders. With the consent
(evidenced as provided in Article 7) of the Holders of at least a majority in aggregate principal
amount of the Notes at the time outstanding (determined in accordance with Article 7 and including,
without limitation, consents obtained in connection with a purchase of, or tender offer or exchange
offer for, Notes), the Company, when authorized by the resolutions of the Board of Directors, and
the Trustee 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 of the Notes; provided, however, that no such supplemental
indenture shall, without the consent of each affected Noteholder:

     (a) reduce the percentage in aggregate principal amount of Notes the Holders of which must
consent to an amendment;

     (b) reduce the rate or amount, or extend the stated time for payment, of Interest on any Note;

     (c) reduce the principal, 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 of the Notes the Company’s obligation to make such payments;

     (f) change the place or currency of payment of principal or Interest in respect of any Note;

     (g) 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 Notes;

     (h) change the ranking of the Notes in a manner adverse to any Holder; or

     (i) make any change in the provisions of this Article 9 that require each Holder’s consent or
in the waiver provisions in Section 5.01 and Section 5.08.

in each case without the consent of each Holder of an outstanding Note affected.

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     Upon the written request of the Company, accompanied by a copy of the Board Resolutions
authorizing the execution of any such supplemental indenture, and upon the filing with the Trustee
of evidence of the consent of Noteholders as aforesaid, 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 shall not be obligated to enter into such supplemental indenture.

     It shall not be necessary for the consent of the Noteholders under this Section 9.02 to
approve the particular form of any proposed supplemental indenture, but it shall be sufficient if
such consent shall approve the substance thereof. After an amendment under the Indenture becomes
effective, the Company shall mail to the Holders a notice briefly describing such amendment.
However, the failure to give such notice to all affected Holders, or any defect in the notice, will
not impair or affect the validity of the amendment.

     Section 9.03. Effect of Supplemental Indentures. Any supplemental indenture executed
pursuant to the provisions of this Article 9 shall comply with the Trust Indenture Act, as then in
effect; provided that this Section 9.03 shall not require such supplemental indenture or the
Trustee to be qualified under the Trust Indenture Act prior to the time such qualification is in
fact required under the terms of the Trust Indenture Act, nor shall it constitute any admission or
acknowledgment by any party to such supplemental indenture that any such qualification is required
prior to the time such qualification is in fact required under the terms of the Trust Indenture
Act. Upon the execution of any supplemental indenture pursuant to the provisions of this Article
9, 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, any other obligor hereunder and the Noteholders 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 9.04. Notation on Notes. Notes authenticated and delivered after the execution of
any supplemental indenture pursuant to the provisions of this Article 9 may bear a notation in a
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 15.10) and delivered in exchange for the Notes then outstanding, upon surrender of such
Notes then outstanding.

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     Section 9.05. Evidence of Compliance of Supplemental Indenture to be Furnished to Trustee.
The Trustee is entitled to receive, and will be fully protected in relying upon, an Opinion of
Counsel and Officers’ Certificate stating that the execution of any amendment, supplement or waiver
authorized pursuant to this Article is authorized or permitted by this Indenture.

ARTICLE 10

Consolidation, Merger, Sale, Conveyance and Lease

     Section 10.01. Company May Consolidate, etc. on Certain Terms. Subject to the provisions of
Section 10.02, the Company shall not consolidate with, merge with or into, or convey, transfer,
lease or otherwise dispose of all or substantially all of its assets and properties to another
Person, in a single transaction or a series of transactions, unless:

     (a) the resulting, surviving or transferee Person (the “Successor Corporation”) 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 Corporation (if not the
Company) shall expressly assume, by supplemental indenture, executed and delivered to the Trustee,
in form satisfactory to the Trustee, all 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.

     For purposes of this Section 10.01, the sale, lease, conveyance, assignment, transfer, or
other disposition of all or substantially all of the properties and assets of one or more
Subsidiaries of the Company, which properties and assets, if held by the Company instead of such
Subsidiaries, would constitute all or substantially all of the properties and assets of the Company
on a consolidated basis, shall be deemed to be the transfer of all or substantially all of the
properties and assets of the Company.

     Section 10.02. Successor Corporation to be Substituted. In case of any such consolidation,
merger, conveyance, transfer, lease or other disposition and upon the assumption by the Successor
Corporation, by supplemental indenture, executed and delivered to the Trustee and satisfactory in
form to the Trustee, of the due and punctual payment of the principal of, and accrued and unpaid
Interest on, all of the Notes, the due and punctual payment of amounts 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 Corporation shall succeed to and be substituted for
the Company with the same effect as if the Successor Corporation had been named herein as the
Company and thereafter, except in the case of a lease, the Company shall be relieved of all
obligations under this Indenture and the Notes. Such Successor

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Corporation 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
Corporation 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 which previously shall have been signed and delivered by the
officers of the Company to the Trustee for authentication, and any Notes which such Successor
Corporation 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, conveyance, transfer, lease or other disposition, the person named as
the “Company” in the first paragraph of this Indenture or any successor which shall thereafter have
become such in the manner prescribed in this Article 10 may be dissolved, wound up and liquidated
at any time thereafter and such person shall be released from its liabilities as obligor and maker
of the Notes and from its obligations under this Indenture.

     In case of any such consolidation, merger, conveyance, transfer, lease or other disposition,
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 10.03. Officers’ Certificate and Opinion of Counsel to be Given to Trustee. No
consolidation, merger, conveyance, transfer, lease or other disposition described in Section 10.01
shall be permitted unless the Trustee shall receive an Officers’ Certificate and an Opinion of
Counsel as conclusive evidence that any such consolidation, merger, conveyance, transfer, lease or
other disposition and any such assumption complies with the provisions of this Article 10.

ARTICLE 11

Satisfaction and Discharge of Indenture

     Section 11.01. Discharge of Indenture. When (a) the Company shall deliver to the Trustee for
cancellation all Notes theretofore authenticated (other than any Notes that have been destroyed,
lost or stolen and in lieu of or in substitution for which other Notes shall have been
authenticated and delivered) and not theretofore canceled, or (b) all the Notes not theretofore
canceled or delivered to the Trustee for cancellation shall have become due and payable, whether on
the Maturity Date or on any earlier Fundamental Change Repurchase Date or upon conversion or
otherwise, and the Company shall deposit with the Trustee, in trust, cash sufficient to pay at
maturity all of the Notes (other than any

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Notes that shall have been mutilated, destroyed, lost or
stolen and in lieu of or in
substitution for which other Notes shall have been authenticated and delivered) not
theretofore canceled or delivered to the Trustee for cancellation, including principal and accrued
and unpaid Interest due thereon, and if the Company shall also pay or cause to be paid all other
sums payable hereunder by the Company, then this Indenture shall cease to be of further effect
except as to (i) the right of holders to receive payments of principal of (including the
Fundamental Change Repurchase Price, if applicable), and accrued and unpaid Interest and any unpaid
Conversion Obligation on (including any Cash Make-Whole Premium, if applicable), the Notes and the
other rights, duties and obligations of Noteholders, as beneficiaries hereof with respect to the
amounts, if any, so deposited with the Trustee, (ii) the rights, obligations and immunities of the
Trustee hereunder and (iii) the obligations of the Company under Section 6.06, and the Trustee, on
written demand of the Company accompanied by an Officers’ Certificate and an Opinion of Counsel as
required by Section 15.05 and at the cost and expense of the Company, shall execute proper
instruments acknowledging satisfaction of and discharging this Indenture; the Company, however,
hereby agrees to reimburse the Trustee for any costs or expenses thereafter reasonably incurred by
the Trustee and to compensate the Trustee for any services thereafter reasonably rendered by the
Trustee in connection with this Indenture or the Notes.

     Section 11.02. Deposited Monies to be Held in Trust by Trustee. Subject to Section 11.04,
all monies deposited with the Trustee pursuant to Section 11.01 shall be held in trust and applied
by it to the payment, either directly or through any Paying Agent (including the Company if acting
as its own Paying Agent), to the Holders of the particular Notes for the payment of which such
monies have been deposited with the Trustee, of all sums due thereon for principal and accrued and
unpaid Interest.

     Section 11.03. Paying Agent to Repay Monies Held. Upon the satisfaction and discharge of
this Indenture, all monies then held by any Paying Agent of the Notes (other than the Trustee)
shall, upon written request of the Company, be repaid to it or paid to the Trustee, and thereupon
such Paying Agent shall be released from all further liability with respect to such monies.

     Section 11.04. Return of Unclaimed Monies. Subject to the requirements of applicable law,
any monies deposited with or paid to the Trustee for payment of the principal of (including the
Fundamental Change Repurchase Price, if applicable), or accrued and unpaid Interest on, Notes and
not applied but remaining unclaimed by the Noteholders for two years after the date upon which the
principal of, or such accrued and unpaid Interest or Fundamental Change Repurchase Price, if any,
on, such Notes, as the case may be, shall have become due and payable, shall be repaid to the
Company by the Trustee on written request and all liability of the Trustee shall thereupon cease
with respect to such monies; and the Holder of any of the Notes shall thereafter look only to the
Company for any payment which such Holder may be entitled to collect unless an applicable abandoned
property law designates another person. The Trustee shall, promptly

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after such payment of the
principal of (including the Fundamental Change
Repurchase Price, if applicable), and any accrued and unpaid Interest on, Notes, as described
in this Section 11.04 and upon written request of the Company, return to the Company any funds in
excess of the amount required for such payment.

     Section 11.05. Reinstatement. If (i) the Trustee or the Paying Agent is unable to apply any
money in accordance with Section 11.02 by reason of any order or judgment of any court or
governmental authority enjoining, restraining or otherwise prohibiting such application and (ii)
the Holders of at least a majority in principal amount of the then outstanding Notes so request by
written notice to the Trustee, the Company’s obligations under this Indenture shall be revived and
reinstated as though no deposit had occurred pursuant to Section 11.01 until such time as the
Trustee or the Paying Agent is permitted to apply all such money in accordance with Section 11.02;
provided, however, that if the Company makes any payment of Interest, on, or principal of
(including the Fundamental Change Repurchase Price, if applicable), any Note following the
reinstatement of its obligations, the Company shall be subrogated to the rights of the Noteholders
to receive such payment from the money held by the Trustee or Paying Agent.

ARTICLE 12

Immunity of Incorporators, Stockholders, Officers and Directors

     Section 12.01. Indenture and Notes Solely Corporate Obligations. No recourse for the payment
of the principal of (including the Fundamental Change Repurchase Price, if applicable), or accrued
and unpaid Interest, on, any Note, or for any claim based thereon or otherwise in respect thereof,
and no recourse under or upon any obligation, covenant or agreement of the Company in this
Indenture or in any supplemental indenture or in any Note, or because of the creation of any
Indebtedness represented thereby, shall be had against any past, present or future incorporator,
stockholder, employee, agent, officer or director or Subsidiary of the Company as such or of any
Successor Corporation, either directly or through the Company or any Successor Corporation, whether
by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or
penalty or otherwise; it being expressly understood that all such liability is hereby expressly
waived and released as a condition of, and as a consideration for, the execution of this Indenture
and the issue of the Notes.

ARTICLE 13

Conversion of Notes

     Section 13.01. Conversion Privilege.

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     (a) Subject to the conditions described in clause (i), (ii), and (iii) below, and upon
compliance with the provisions of this Article 13, a Noteholder 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 a multiple thereof) of such Note into cash at
any time prior to the Close of Business on the Scheduled Trading Day immediately preceding March 1,
2015 at a rate (the “Conversion Rate”) of 132.5205 shares of Common Stock (subject to adjustment by
the Company as provided in Section 13.04) per $1,000 principal amount Note into an amount of cash
based on the sum of the Daily Conversion Values of such Notes for each of the 35 consecutive
Trading Days during the relevant Observation Period (subject to the settlement provisions of
Section 13.03, the “Conversion Obligation”) under the circumstances and during the periods set
forth below. On and after March 1, 2015, regardless of the conditions described in clause (i),
(ii), and (iii) below, and upon compliance with the provisions of this Article 13, a Noteholder
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 a multiple thereof) of such Note into cash at the
Conversion Rate at any time prior to the Close of Business on the second Scheduled Trading Day
immediately preceding the Maturity Date.

     (i) The Notes shall be convertible prior to the Close of Business on the Scheduled
Trading Day immediately preceding March 1, 2015, during the ten (10) Business Day period
after any five (5) consecutive Trading Day period (the “Measurement Period”) in which the
Trading Price per $1,000 principal amount of Notes for each day of such Measurement Period
was less than 98% of the product of the Last Reported Sale Price of the Common Stock on
such date and the Conversion Rate on such date, all as determined by the Trustee. The
Trustee shall have no obligation to determine the Trading Price of the Notes unless
requested by the Company to do so in writing, and the Company shall have no obligation to
make such request unless a Noteholder 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 (a) the then-applicable Conversion Rate of the Notes and (b) the Last Reported
Sale Price of the Common Stock at such time, at which time the Company shall instruct the
Trustee to determine the Trading Price of the 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 (a) the then-applicable Conversion
Rate of the Notes and (b) the Last Reported Sale Price of the Common Stock on such date.
If the Trading Price condition set forth above has been met, the Company shall so notify
the Noteholders. 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 98% of
the product of (a) the then-applicable Conversion Rate of the Notes and (b) the Last
Reported Sale Price on such date, the Company shall so notify the Noteholders.

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     (ii) The Notes shall be convertible prior to the Close of Business on the Scheduled
Trading Day immediately preceding March 1, 2015 during any fiscal quarter (and only during
such fiscal quarter)
 commencing after the fiscal quarter ending October 2, 2010, if the Last Reported Sale
Price of the Common Stock for twenty (20) or more Trading Days in a period of thirty (30)
consecutive Trading Days ending on the last Trading Day of the immediately preceding
fiscal quarter exceeds 130% of the applicable Conversion Price in effect on each such
applicable Trading Day.

     (iii) The Notes shall be convertible prior to the Close of Business on the Scheduled
Trading Day immediately preceding March 1, 2015 as provided in Section 13.01(b), Section
13.01(c) and Section 13.01(d).

     (b) In the event that prior to the Close of Business on the Scheduled Trading Day immediately
preceding March 1, 2015 the Company elects to:

     (i) distribute to all or substantially all holders of the Common Stock rights
entitling them to purchase, for a period expiring within 60 days after the record date for
such distribution, Common Stock at a price less than the Last Reported Sale Price of the
Common Stock for the Trading Day immediately preceding the declaration date of such
distribution; or

     (ii) distribute to all or substantially all holders of Common Stock, assets or debt
securities of the Company or rights to purchase the Company’s securities, 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 for the Trading Day
immediately preceding the date of declaration of such distribution,

then, in either case, Holders may surrender the Notes for conversion into cash at any time on and
after the date that the Company provides notice to Holders referred to in the next sentence until
the earlier of the Close of Business on the Business Day immediately preceding the Ex-Dividend Date
for such distribution or the date the Company announces that such distribution will not take place,
even if the Notes are not otherwise convertible at such time. The Company shall notify Holders of
any distribution referred to in either clause (i) or clause (ii) above and of the resulting
conversion right at least twenty (20) Business Days prior to the Ex-Dividend Date for such
distribution.

     (c) If the Company combines or consolidates with or merges with or into another Person or is a
party to a binding share exchange or sells or conveys all or substantially all of its properties
and assets in each case pursuant to which the Common Stock would be converted into cash, securities
and/or other property, then Holders may surrender Notes for conversion into cash at any time from
and

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after the date which is forty (40) Scheduled Trading Days prior to the anticipated effective
date of the transaction until and including the date that is forty (40) Scheduled Trading Days
after the effective date of such transaction (or, if earlier,
the date the Company announces that such transaction will not take place); provided such
transaction does not otherwise constitute a Fundamental Change or a Make-Whole Fundamental Change
to which the provisions of Section 13.01(d) shall apply. The Company will notify Holders of Notes
of the resulting conversion right at least forty (40) Scheduled Trading Days prior to the
anticipated effective date of such transaction; provided, however that if the Company does not have
knowledge of any such transaction at least forty (40) Scheduled Trading Days prior to the
anticipated effective date of such transaction, the Company will notify Holders within one Business
Day of the date upon which it receives notice, or otherwise becomes aware, of such transaction, but
in no event later than the actual effective date of such transaction. The Board of Directors shall
determine in good faith the anticipated effective date of the transaction, and such determination
shall be conclusive and binding on the Holders.

     (d) If the Company is a party to any transaction or event that constitutes a Fundamental
Change or a Make-Whole Fundamental Change, a Holder may surrender Notes for conversion into cash at
any time from and after the date which is forty (40) Scheduled Trading Days prior to the
anticipated effective date of such transaction or event until and including the later of (i) the
date which is forty (40) Scheduled Trading Days after the effective date of such transaction or
event (or, if earlier, the date the Company announces that such transaction or event will not take
place) and (ii) if such transaction or event constitutes a Fundamental Change, the related
Fundamental Change Repurchase Date. The Company shall give notice in writing to all record
Noteholders and the Trustee of the Fundamental Change or Make-Whole Fundamental Change no later
than forty (40) Scheduled Trading Days prior to the anticipated effective date of the Fundamental
Change or the anticipated Make-Whole Effective Date, as applicable; provided, however that if the
Company does not have knowledge of any such transaction or event at least forty (40) Scheduled
Trading Days prior to the anticipated effective date of such Fundamental Change or the anticipated
Make-Whole Effective Date, the Company will notify Holders within one Business Day of the date upon
which it receives notice, or otherwise becomes aware, of such transaction or event, but in no event
later than the actual effective date of such Fundamental Change or Make-Whole Effective Date, as
applicable. The Board of Directors shall determine in good faith the anticipated effective date of
the Fundamental Change or the anticipated Make-Whole Effective Date, and such determination shall
be conclusive and binding on the Holders.

     Section 13.02. Adjustments to Cash Due Upon Conversion Upon a Make-Whole Fundamental Change.

     (a) General. If a Fundamental Change described in clause (1) or clause (2) of the definition
thereof (determined after giving effect to any exceptions to or

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exclusions from such definition, a
“Make-Whole Fundamental Change”) occurs and a Holder converts its Notes in connection with such
Make-Whole Fundamental Change, the Company will, in the circumstances described in this
Section 13.02, increase the Conversion Rate for such Notes by the number of shares of Common
Stock (the “Cash Make-Whole Premium”) described in this Section 13.02. For purposes of this
Section 13.02, a conversion of Notes will be deemed to be “in connection with” a Make-Whole
Fundamental Change if the relevant Notice of Conversion is surrendered to the Conversion Agent
during the period from, and including, the effective date of such Make-Whole Fundamental Change
(the “Make-Whole Effective Date”) up to, and including, the Scheduled Trading Day immediately prior
to the related Fundamental Change Repurchase Date.

     (b) Upon any conversion of Notes in connection with a Make-Whole Fundamental Change, the
Company shall pay solely cash based on the Conversion Rate as increased to reflect the Cash
Make-Whole Premium pursuant to the table set forth in (e) below in accordance with Section 13.03.
If the Holders of Common Stock receive only cash in a Make-Whole Fundamental Change described in
clause (2) of the definition of Fundamental Change (without regard to the proviso to such clause),
the cash due upon conversion will be paid to Holders on the third Scheduled Trading Day following
the relevant Conversion Date. Whenever any Make-Whole Fundamental Change occurs, on or prior to
the fifth Business Day immediately following the Make-Whole Effective Date for such Make-Whole
Fundamental Change, the Company will deliver to each Noteholder notice of such Make-Whole
Fundamental Change and its Make-Whole Effective Date (a “Make-Whole Fundamental Change Notice”) and
issue a press release containing the same.

     (c) The amount, if any, by which the Conversion Rate will be increased if a Noteholder
converts a Note in connection with a Make-Whole Fundamental Change will be determined by reference
to the table in (e) below and will be based on the Make-Whole Effective Date and the Stock Price
for such Make-Whole Fundamental Change.

     (d) The Stock Prices set forth in the first row (i.e., the column headers) of the table set
forth below will be adjusted on each date on which the Conversion Rate is adjusted pursuant to
Section 13.04. The adjusted Stock Prices shall equal the Stock Prices in effect immediately prior
to such adjustment, multiplied by a fraction, the numerator of which is the Conversion Rate in
effect immediately prior to the adjustment giving rise to the Stock Price adjustment, and the
denominator of which is the Conversion Rate as so adjusted. The Cash Make-Whole Premium set forth
in the table in (e) below shall be adjusted in the same manner and at the same time as the
Conversion Rate as set forth in Section 13.04 (other than by operation of an adjustment to the
Conversion Rate pursuant to this Section 13.02).

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     (e) The following table sets forth the amount, if any, by which the Conversion Rate will
be increased for each Stock Price and Make-Whole Effective Date set forth below.

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Stock Price
	Effective date	 	$6.16	 	$6.50	 	$7.00	 	$7.50	 	$8.00	 	$8.50	 	$9.00	 	$10.00	 	$15.00	 	$20.00	 	$30.00	 	$40.00
	June 15, 2010

	 	 	29.8171	 	 	 	26.3242	 	 	 	22.0480	 	 	 	18.6899	 	 	 	16.0231	 	 	 	13.8820	 	 	 	12.1448	 	 	 	9.5395	 	 	 	3.9891	 	 	 	2.1037	 	 	 	0.5864	 	 	 	0.0650	 
	June 1, 2011

	 	 	29.8171	 	 	 	25.6636	 	 	 	21.0543	 	 	 	17.4892	 	 	 	14.7067	 	 	 	12.5150	 	 	 	10.7719	 	 	 	8.2357	 	 	 	3.2903	 	 	 	1.7504	 	 	 	0.4910	 	 	 	0.0457	 
	June 1, 2012

	 	 	29.8171	 	 	 	25.6419	 	 	 	20.4163	 	 	 	16.4411	 	 	 	13.4030	 	 	 	11.0679	 	 	 	9.2616	 	 	 	6.7461	 	 	 	2.4788	 	 	 	1.3362	 	 	 	0.3788	 	 	 	0.0253	 
	June 1, 2013

	 	 	29.8171	 	 	 	24.7145	 	 	 	18.7807	 	 	 	14.3728	 	 	 	11.1106	 	 	 	8.7009	 	 	 	6.9206	 	 	 	4.6207	 	 	 	1.5265	 	 	 	0.8508	 	 	 	0.2439	 	 	 	0.0045	 
	June 1, 2014

	 	 	29.8171	 	 	 	22.7792	 	 	 	15.7637	 	 	 	10.7612	 	 	 	7.2950	 	 	 	4.9531	 	 	 	3.4088	 	 	 	1.7633	 	 	 	0.5132	 	 	 	0.2993	 	 	 	0.0871	 	 	 	0.0000	 
	June 1, 2015

	 	 	29.8171	 	 	 	21.3256	 	 	 	10.3366	 	 	 	0.8128	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 

     (f) If the exact Stock Prices and/or Make-Whole Effective Dates for a Make-Whole
Fundamental Change are not set forth in the table above, then:

     (i) if the Stock Price is between two Stock Prices in the table or the Make-Whole
Effective Date is between two Make-Whole Effective Dates in the table, then the Conversion
Rate adjustment will be determined by a straight-line interpolation between the Conversion
Rate adjustment set forth for the higher and lower Stock Prices and the earlier and later
Make-Whole Effective Dates listed in the table, as applicable, based on a 365-day year;

     (ii) if the Stock Price is greater than $40.00 per share, subject to adjustment in
the same manner and at the same time as the Stock Prices listed in the table, no
adjustment to the Conversion Rate will be made; and

     (iii) if the Stock Price is less than $6.16 per share, subject to adjustment in the
same manner and at the same time as the Stock Prices listed in the table, no adjustment to
the Conversion Rate will be made.

Notwithstanding the foregoing, in no event will the Conversion Rate exceed 162.3376 shares of
Common Stock per $1,000 principal amount of Notes, subject to adjustments in the same manner as the
Conversion Rate as set forth in Section 13.04 hereof.

     Section 13.03. Conversion Procedure.

     (a) Subject to Section 13.03(b) and except as provided in Section 13.02(b), the Company will
satisfy the Conversion Obligation with respect to each $1,000 principal amount of Notes tendered
for conversion in cash, by delivering, on the third Scheduled Trading Day immediately following the
last day of the related Observation Period, cash equal to the Settlement Amount. The

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Settlement Amount shall be determined by the Company promptly following the last day of the
Observation Period.

     (b) Notwithstanding Section 13.03(a), if any information required in order to calculate the
amount of cash payable upon conversion will not be available as of the applicable settlement date,
the Company shall deliver the additional cash conversion consideration, if any, resulting from any
such adjustment on the third Scheduled Trading Day after the earliest Trading Day on which such
calculation can be made.

     (c) Before any Holder of a Note shall be entitled to convert the same as set forth above, such
Holder shall (1) 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 13.03(g) and, if
required, pay all taxes or duties, if any, and (2) in the case of a Note issued in certificated
form, (A) complete and manually sign and deliver an irrevocable written notice to the Conversion
Agent in the form on the reverse of such certificated Note (or a facsimile thereof) (a “Notice of
Conversion”) at the office of the Conversion Agent and shall state in writing therein the principal
amount of Notes to be converted, (B) 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, (C) 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 13.03(g), and (D) if required,
pay all taxes or duties, if any. 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 this Section 13.03(c).

     No Notice of Conversion with respect to any Notes may be tendered by a Holder thereof if such
Holder has also tendered a Fundamental Change Repurchase Notice and not validly withdrawn such
Fundamental Change Repurchase Notice in accordance with the applicable provisions of Section 14.01,
as the case may be.

     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, if any, that shall be payable upon conversion
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.

     (d) Delivery of the amounts owing in satisfaction of the Conversion Obligation shall be made
by the Company in no event later than the date specified in Section 13.03(a), except to the extent
specified in Section 13.03(b). The Company shall make such delivery by paying the cash amount owed
to the Conversion Agent or to the Holder of the Note surrendered for conversion, or such Holder’s
nominee or nominees.

65

 

     (e) 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, without charge to such Holder, a new Note or Notes in authorized denominations
in an aggregate principal amount equal to the unconverted portion of the surrendered Notes.

     (f) 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.

     (g) Upon conversion, a Noteholder will not receive any separate cash payment and the
Conversion Rate shall not be adjusted for accrued and unpaid Interest. The Company’s payment in
cash of the Settlement Amount as described above 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 not
including, the relevant Conversion Date. Notwithstanding the preceding sentence, 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 record date will receive the 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 Opening
of Business on the immediately following Interest Payment Date must be accompanied by payment of an
amount equal to the Interest payable on the Notes so converted; provided, however, that no such
payment need be made (i) in connection with a conversion following the last regular record date
preceding the Maturity Date; (ii) if the Company has specified a Fundamental Change Repurchase Date
that is after a record date and on or prior to the Business Day following the corresponding
Interest Payment Date; or (iii) to the extent of any overdue Interest existing at the time of
conversion with respect to such Notes. Except as described above, no payment or adjustment will be
made for accrued Interest on converted Notes.

     Section 13.04. Adjustment of Conversion Rate. The Conversion Rate shall be adjusted from
time to time by the Company as follows; except that no adjustment shall be made to the Conversion
Rate if Holders participate (other than in the case of a share split or combination), at the same
time and upon the same terms as holders of 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 such Holders held a number of shares of Common Stock equal to the applicable Conversion
Rate, multiplied by the principal amount of Notes held by such Holders, divided by $1,000:

     (a) In case the Company shall exclusively issue shares of Common Stock as a dividend or
distribution on all or substantially all shares of Common

66

 

Stock or shall effect a share split or combination, the Conversion Rate shall be adjusted
based on the following formula:

	 	 	 	 	 

	CR1 = CR0 x

	 	OS1 
OS0
	 	 

     where

			
	CR0       =	 	the Conversion Rate in effect immediately prior to the Opening of
Business on the Ex-Dividend Date for such dividend or distribution or immediately
after the Opening of Business on the effective date of such share split or
combination, as applicable;

			
	CR1       =	 	the Conversion Rate in effect immediately after the Opening of Business
on such Ex-Dividend Date or the effective date, as applicable;

			
	OS0       =	 	the number of shares of Common Stock outstanding immediately prior to the
Opening of Business on such Ex-Dividend Date or effective date, as applicable; and

			
	OS1       =	 	the number of shares of Common Stock outstanding immediately after giving
effect to such dividend, distribution, share split or combination, as applicable.

Any such adjustment shall become effective immediately after the Opening of Business on the
Ex-Dividend Date for such dividend or distribution or immediately after the Opening of Business on
the effective date of such share split or combination. If any dividend or distribution of the type
described in this Section 13.04(a) is declared but not so paid or made, or the outstanding shares
of Common Stock are not split or combined, as the case may be, the Conversion Rate shall be
immediately readjusted, effective as of the date the Board of Directors determines not to pay such
dividend or distribution, or split or combine the outstanding shares of Common Stock, as the case
may be, to the Conversion Rate that would then be in effect if such dividend, distribution, split
or combination had not been declared.

     (b) In case the Company shall issue to all or substantially all holders of its outstanding
shares of Common Stock rights, options or warrants entitling them (for a period of not more than
forty-five (45) calendar days after the announcement date of such issuance) to subscribe for or
purchase shares of Common Stock at a price per share less than the average 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:

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	CR1 = CR0 x

	 	OS0 + X  
OS0 + Y
	 	 

     where

			
	
CR0	= 	the Conversion Rate in effect immediately prior to the Opening of
Business on the Ex-Dividend Date for such event;

			
	
CR1	= 	the Conversion Rate in effect immediately after the opening of Business
on the Ex-Dividend Date for such event;

			
	OS0
	= 	the number of shares of Common Stock outstanding immediately prior to the
Opening 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 or convert such rights, options or warrants divided by the average of the
Last Reported Sale Prices of Common Stock over the 10 consecutive Trading Day period
ending on the Trading Day immediately preceding the date of announcement of the
issuance of such rights, options or warrants.

Any such increase shall be successively made whenever any such rights, option or warrants are
issued and shall become effective immediately after the Opening of Business on the Ex-Dividend Date
for such issuance. If such rights or warrants are not so issued, the Conversion Rate shall be
decreased to be the Conversion Rate that would then be in effect if such Ex-Dividend Date for such
issuance had not occurred. To the extent that such rights, options or warrants are not exercised
prior to their expiration or termination, 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.

     In determining whether any rights, options or warrants entitle the holders to subscribe for or
purchase shares of Common Stock at less than such average of Last Reported Sale Prices for the ten
(10) consecutive Trading Day period ending on 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 in good faith by the Board of Directors.

68

 

     (c) In case the Company shall, by dividend or otherwise, distribute to all or substantially
all holders of its Common Stock shares of any class of Capital Stock of the Company, evidences of
its Indebtedness or other assets or property of
the Company (including rights, options and warrants to acquire Capital Stock or other
securities of the Company but excluding dividends or distributions and rights, options or warrants
as to which an adjustment was effected pursuant to Section 13.04(a), Section 13.04(b) or Section
13.04(e), dividends or distributions paid exclusively in cash as to which Section 13.04(d) shall
apply, distributions as to which this paragraph (c) with respect to Spin-Offs shall apply) and
dividends or distributions as to which Section 13.06(b) shall apply (any of such shares of Capital
Stock, Indebtedness, or other assets or property hereinafter in this Section 13.04(c) called the
“Distributed Property”), then, in each such case the Conversion Rate shall be increased based on
the following formula:

	 	 	 	 	 

	CR1 = CR0 x

	 	
SP0
 

SP0 - FMV
	 	 

     where

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

			
	CR1	= 	the Conversion Rate in effect immediately after the Opening 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 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 distributed with respect to each outstanding share of Common
Stock on the Ex-Dividend Date for such distribution.

Any such increase shall become effective immediately after the Opening of Business on the
Ex-Dividend Date for such distribution; provided that if “FMV” is equal to or greater than
“SP0” as set forth above, in lieu of the foregoing increase, adequate provision shall be
made so that each Noteholder shall have the right to receive, at the same time and upon the same
terms as holders of Common Stock, in respect of each $1,000 principal amount of Notes, the amount
and kind of Distributed Property such Holder would have received had such Holder owned a number of
shares of Common Stock equal to the Conversion Rate in effect immediately prior to the Ex-Dividend
Date for such distribution. If such distribution is not so paid or made, the Conversion Rate shall
be decreased to be

69

 

the Conversion Rate that would then be in effect if such dividend or
distribution had not been declared.

     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 where such Capital Stock
or similar equity interest is listed or quoted (or will be listed or quoted upon consummation of
such payment, dividend or distribution) on a National Securities Exchange, over-the-counter market
or reasonably comparable U.S. equivalent (a “Spin-Off”), the Conversion Rate will be increased
based on the following formula:

	 	 	 	 	 

	CR1 = CR0 x

	 	FMV0 + MP0 
MP0
	 	 

     where

			
	CR0
	= 	the Conversion Rate in effect immediately prior to the end of the
Valuation Period;

			
	CR’
	= 	the Conversion Rate in effect immediately after the end of the Valuation
Period;

			
	FMV0
	= 	the average of the Last Reported Sale Prices of the Capital Stock or
similar equity interest distributed to holders of Common Stock applicable to one
share of Common Stock 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 Common Stock over the
Valuation Period.

Any such adjustment shall occur on the last day of the Valuation Period; provided that in respect
of any conversion during the Valuation Period (or, in respect of a conversion before the
Ex-Dividend Date of any Spin-Off, any calculation of a Daily Conversion Value during the Valuation
Period), references within this paragraph (c) with respect to 10 Trading Days shall be deemed
replaced with such lesser number of Trading Days as have elapsed between the Ex-Dividend Date of
such Spin-Off and the Conversion Date (or the Trading Day of the applicable Observation Period for
which the Daily Conversion Value is to be calculated) in determining the applicable Conversion
Rate.

     Rights, options or warrants distributed by the Company to all Holders of Common Stock,
entitling the holders thereof to subscribe for or purchase shares of the Company’s Capital Stock,
including Common Stock (either initially or

70

 

under certain circumstances), which rights, options or
warrants, until the occurrence of a specified event or events (“Trigger Event”): (i) are deemed to
be transferred with such shares of Common Stock; (ii) are not exercisable; and (iii) are also
issued in respect of future issuances of Common Stock, shall be deemed not to have been distributed
for purposes of this Section 13.04 (and no adjustment to the Conversion Rate under this Section
13.04 will be required) until the occurrence of the earliest Trigger Event, whereupon such rights,
options and warrants shall be deemed to have been distributed and an appropriate adjustment
(if any is required) to the Conversion Rate shall be made under this Section 13.04(c). If any
such right, option or warrant, including any such existing rights, options or warrants distributed
prior to the date of this Indenture, are subject to events, upon the occurrence of which such
rights, options or warrants become exercisable to purchase different securities, evidences of
Indebtedness or other assets, then the date of the occurrence of any and each such event shall be
deemed to be the date of distribution and Ex-Dividend Date with respect to new rights, options or
warrants with such rights (and a termination or expiration of the existing rights, options or
warrants without exercise by any of the holders thereof). In addition, in the event of any
distribution (or deemed distribution) of rights, options or warrants, or any Trigger Event or other
event (of the type described in the preceding sentence) with respect thereto that was counted for
purposes of calculating a distribution amount for which an adjustment to the Conversion Rate under
this Section 13.04 was made, (1) in the case of any such rights, options or warrants that shall all
have been redeemed or repurchased without exercise by any holders thereof, the Conversion Rate
shall be readjusted upon such final redemption or repurchase to give effect to such distribution or
Trigger Event, as the case may be, as though it were a cash distribution, equal to the per share
redemption or repurchase price received by a holder or holders of Common Stock with respect to such
rights, options or warrants (assuming such holder had retained such rights or warrants), made to
all holders of Common Stock as of the date of such redemption or repurchase, and (2) in the case of
such rights, options or warrants that shall have expired or been terminated without exercise by any
holders thereof, the Conversion Rate shall be readjusted as if such rights, options and warrants
had not been issued.

     For purposes of this Section 13.04(c), Section 13.04(a) and Section 13.04(b), any dividend or
distribution to which this Section 13.04(c) is applicable that also includes shares of Common Stock
to which Section 13.04(a) applies or rights, options or warrants to subscribe for or purchase
shares of Common Stock to which Section 13.04(b) applies, shall be deemed instead to be (1) a
dividend or distribution of the evidences of Indebtedness, assets or shares of capital stock other
than such shares of Common Stock or rights, options or warrants to which Section 13.04(b) applies
(and any Conversion Rate adjustment required by this Section 13.04(c) with respect to such
 dividend
or distribution shall then be made) immediately followed by (2) a dividend or distribution of such
shares of Common Stock or such rights, options or warrants (and any further Conversion Rate
adjustment required by Section 13.04(a) and Section 13.04(b) with respect to such 

71

 

dividend or
distribution shall then be made), except (A) the Ex-Dividend Date of such dividend or distribution
shall be substituted as “the Ex-Dividend Date” and “the Ex-Dividend for such dividend or
distribution” or “the Ex-Dividend for such issuance” within the meaning of Section 13.04(a) and
Section 13.04(b) and (B) any shares of Common Stock included in such dividend or distribution shall
not be deemed “outstanding immediately prior to the Opening of Business on the Ex-Dividend Date for
such dividend or distribution” within the meaning of Section 13.04(a).

     (d) In case the Company shall pay a dividend or make a distribution consisting exclusively of
cash to all or substantially all holders of its Common Stock (but excluding distributions covered
by Section 13.04(e)), the Conversion Rate shall be adjusted based on the following formula:

	 	 	 	 	 

	CR1 = CR0 x

	 	SP0 
SP0 - C
	 	 

     where

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

			
	CR1
	= 	the Conversion Rate in effect immediately after the Opening of Business
on the Ex-Dividend Date for such dividend or distribution;

			
	SP0
	= 	the Last Reported Sale Price of the Common Stock on the Trading Day
immediately preceding Ex-Dividend Date for such dividend or distribution; and

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

Any such adjustment shall become effective immediately after the Opening of Business on the
Ex-Dividend Date for such dividend or distribution; provided that if “C” is equal to or greater
than “SP0” as set forth above, in lieu of the foregoing adjustment, adequate provision
shall be made so that each Noteholder shall have the right to receive, at the same time and upon
the same terms as holders of Common Stock for each $1,000 principal amount of Notes, the amount of
cash such Holder would have received had such Holder owned a number of shares of Common Stock equal
to the Conversion Rate in effect immediately prior to Opening of Business on the Ex-Dividend Date
for such dividend or distribution. If such dividend or distribution is not so paid or made, the
Conversion Rate shall be immediately decreased to be the Conversion Rate that would then be in
effect if such dividend or distribution had not been declared.

72

 

     (e) In case the Company or any of its Subsidiaries makes a payment in respect of a tender
offer or exchange offer for all or any portion of the Common Stock (subject to the tender offer
rules of the Exchange Act then applicable), other than an odd-lot offer, to the extent that the
cash and value of any other consideration included in the payment per share of Common Stock exceeds
the Last Reported Sale Price of the Common Stock on the Trading Day next succeeding the last date
on which tenders or exchanges may be made pursuant to such tender or exchange offer under the
Exchange Act (as it may be amended), the Conversion Rate shall be increased based on the following
formula:

	 	 	 	 	 

	CR1 = CR0 x

	 	AC +
(SP1 x
OS1) 
OS0 x SP1
	 	 

     where

			
	CR0	= 	the Conversion Rate in effect immediately prior to the Close of Business
on the 10th Trading Day immediately following, and including, the Trading
Day next succeeding the date such tender or exchange offer expires;

			
	CR1	= 	the Conversion Rate in effect immediately after the Close of Business on
the 10th Trading Day immediately following, and including, 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 accepted for purchase or exchange in such tender offer or exchange offer);

			
	OS1
	= 	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 accepted for purchase or exchange in such tender offer or exchange offer);
and

			
	SP1
	= 	the average of the Last Reported Sale Prices of Common Stock over the 10
consecutive Trading Day period commencing on the Trading Day next succeeding the date
such tender or exchange offer expires.

73

 

Any such adjustment to the Conversion Rate will occur at the Close of Business on the 10th Trading
Day immediately following, and including, the Trading Day next succeeding the date such tender or
exchange offer expires; provided that in respect of any conversion (or, in respect of any
conversion before the expiration date of such tender or exchange offer, any calculation of a Daily
Conversion Value) within the 10 Trading Days immediately following, and including, the expiration
date of any tender or exchange offer, references within this paragraph (e) to 10 Trading Days shall
be deemed replaced with such lesser number of Trading Days as have elapsed between the expiration
date of such tender or exchange offer and the Conversion Date (or the Trading Day of the applicable
Observation Period for which the Daily Conversion Value is to be calculated) in determining the
applicable Conversion Rate.

     (f) As used in this Section 13.04, “effective date” means the first date on which the shares
trade on the applicable exchange or in the applicable market, regular way, reflecting the
transaction.

     (g) In addition to those 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
principal U.S. National Securities Exchange on which Common Stock is traded, 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, the Company may also (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 any dividend or distribution of shares (or rights to acquire shares) or similar event.
Whenever the Conversion Rate is increased pursuant to the preceding sentence, the Company shall
mail to the Holder of each Note at his last address appearing on the Note Register provided for in
Section 2.05 a notice of the increase at least fifteen (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.

     (h) All calculations and other determinations under this Article 13 shall be made by the
Company and shall be made to the nearest cent or to the nearest one-ten thousandth (1/10,000) of a
share, as the case may be. No adjustment shall be made for the Company’s issuance of Common Stock
or convertible or exchangeable securities or rights to purchase Common Stock or convertible or
exchangeable securities, other than as provided in this Section 13.04. No adjustment shall be made
to the Conversion Rate unless such adjustment would require a change of at least 1% in the
Conversion Rate then in effect at such time. The Company shall carry forward any adjustments that
are less than 1% of the Conversion Rate and make such carried forward adjustments, regardless of
whether the aggregate adjustment is less than 1%, (i) upon any subsequent adjustment, (ii) upon any
Conversion Date and (iii) upon each Trading Day of any Observation Period. No adjustment to the
Conversion Rate shall be made

74

 

pursuant to Section 13.04(a)(other than an adjustment to the
Conversion Rate for a share combination), Section 13.04(b), Section 13.04(c), Section 13.04(d) and
Section 13.04(e) if the application of the applicable adjustment formula would result in a decrease
in the Conversion Rate.

     (i) Whenever the Conversion Rate is adjusted as herein provided, the Company shall promptly
file with the Trustee and any Conversion Agent other than the Trustee an Officers’ Certificate
setting forth the Conversion Rate after such adjustment and setting forth a brief statement of the
facts requiring such adjustment. The Trustee and Conversion Agent may conclusively rely on the
accuracy of the Conversion Rate adjustment provided by the Company. Unless and until a Responsible
Officer of the Trustee shall have received such Officers’ 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 became effective and shall mail such notice
of such adjustment of the Conversion Rate to the Holder of each Note at his last address appearing
on the Note Register provided for in Section 2.05 of this Indenture, within twenty (20) days after
the effective date of such adjustment. Failure to deliver such notice shall not affect the
legality or validity of any such adjustment.

     (j) In any case in which this Section 13.04 provides that an adjustment shall become effective
immediately after (1) an Ex-Dividend Date for an event, (2) the date fixed for the determination of
stockholders entitled to receive a dividend or distribution or the effective date of a share split
or combination pursuant to Section 13.04(a), (3) a date fixed for the determination of stockholders
entitled to receive rights or warrants pursuant to Section 13.04(b), or (4) the last date on which
tenders or exchanges may be made pursuant to any tender or exchange offer pursuant to Section
13.04(e) (each an “Adjustment Determination Date”), the Company may elect to defer until the
occurrence of the applicable Adjustment Event (as hereinafter defined) issuing to the Holder of any
Note converted after such Adjustment Determination Date and before the occurrence of such
Adjustment Event, the additional cash or other securities issuable upon such conversion by reason
of the adjustment required by such Adjustment Event over and above the amounts deliverable upon
such conversion before giving effect to such adjustment. For purposes of this Section 13.04(j),
the term “Adjustment Event” shall mean:

     (i) in any case referred to in clause (1) hereof, the occurrence of such event,

     (ii) in any case referred to in clause (2) hereof, the date any such dividend or
distribution is paid or made,

75

 

     (iii) in any case referred to in clause (3) hereof, the date of expiration of
such rights or warrants, and

     (iv) in any case referred to in clause (4) hereof, the date a sale or exchange of
Common Stock pursuant to such tender or exchange offer is consummated and becomes
irrevocable.

     (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 but shall include shares
issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock.

     (l) For the avoidance of doubt, if a Holder converts Notes in connection with a Make-Whole
Fundamental Change and the Make-whole Fundamental Change does not occur, the Holder will not be
entitled to a Cash-Make-Whole Premium in connection with such conversion.

     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 or the Daily Conversion Values
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 from which such Last Reported Sale Prices, the Daily VWAPs or
the Daily Conversion Values are to be calculated.

     Section 13.06. Effect of Reclassification, Consolidation, Merger or Sale.

     If any of the following events occur, namely (i) any recapitalization, reclassification or
change of the outstanding shares of Common Stock (other than a change in par value, or from par
value to no par value, or from no par value to par value, or as a result of a subdivision or
combination), (ii) any consolidation, merger or combination involving the Company, (iii) any sale,
lease or other transfer of all or substantially all of the property and assets of the Company and
the Company’s Subsidiaries to a third party or (iv) any statutory share exchange, in each case as a
result of which holders of Common Stock will receive cash, securities or other property or assets
with respect to or in exchange for such Common Stock (any such event a “Reorganization Event”),
then:

     (a) the Company or the successor or purchasing corporation, partnership, trust or limited
liability company, as the case may be, shall execute with the Trustee a supplemental indenture
(which shall comply with the Trust Indenture Act as in force at the date of execution of such
supplemental indenture if such supplemental indenture is then required to so comply) permitted
under Section 9.01(b) providing for the conversion and settlement of the Notes as set

76

 

forth in this Indenture. Such supplemental indenture shall provide for adjustments which
shall be as nearly equivalent as may be practicable to the adjustments provided for in this Article
and the Trustee may conclusively rely on the determination by the Company of the equivalency of
such adjustments.

     In the event the Company shall execute a supplemental indenture pursuant to this Section
13.06, the Company shall promptly file with the Trustee an Officers’ Certificate briefly stating
the reasons therefor, the kind or amount of cash, securities or property or asset that will
constitute the Reference Property after any such Reorganization Event, any adjustment to be made
with respect thereto and that all conditions precedent have been complied with.

     (b) Subject to the provisions of Section 13.01, at and after the effective time of such
Reorganization Event, upon conversion, the Settlement Amount shall continue to be paid solely in
cash; provided, however, that the Daily VWAP will be calculated based on the value of a unit of the
amount of shares of stock, other securities or other property or assets (including cash or any
combination thereof) that a holder of one share of common stock immediately prior to such
Reorganization Event would have owned or been entitled to receive upon the occurrence of such
transaction (the “Reference Property”). For purposes of the foregoing, if the transaction causes
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), the Reference
Property used to determine the amount of cash into which the Notes will be convertible will 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. The Company will notify Holders, the
Trustee and the Conversion Agent (if other than the Trustee) of the weighted average as soon as
practicable after such determination is made. The Company shall not become a party to any such
transaction unless its terms are consistent with the preceding. None of the foregoing provisions
shall affect the right of a Holder of Notes to convert its Notes in accordance with the provisions
of Article 13 hereof prior to the effective date of such transaction.

     (c) The Company shall cause notice of the execution of such supplemental indenture to be
mailed to each Noteholder, at his address appearing on the Note Register provided for in this
Indenture, within twenty (20) days after execution thereof. Failure to deliver such notice shall
not affect the legality or validity of such supplemental indenture.

     (d) The above provisions of this Section shall similarly apply to successive Reorganization
Events.

     Section 13.07. Responsibility of Trustee. Notwithstanding any provision of this Indenture to
the contrary, the Trustee and any other Conversion Agent shall not at any time be under any duty or
responsibility to any Noteholder to determine the Conversion Rate or whether any facts exist which
may require any

77

 

adjustment 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 securities or of any property, which 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 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 13.06 after any event referred to in such
Section 13.06 or to any adjustment to be made with respect thereto, but, subject to the provisions
of Section 6.01, may accept as conclusive evidence of the correctness of any such provisions, and
shall be protected in relying upon, the Officers’ Certificate (which the Company shall be obligated
to file with the Trustee prior to the execution of any such supplemental indenture) with respect
thereto.

     Section 13.08. Notice to Holders Prior to Certain Actions.

     In case:

     (a) the Company shall declare a dividend (or any other distribution) on its Common Stock that
would require an adjustment in the Conversion Rate pursuant to Section 13.04; or

     (b) the Company shall authorize the granting to all or substantially all of the holders of its
Common Stock of rights, options or warrants to subscribe for or purchase any share of any class or
any other rights, options or warrants, or

     (c) of a Reorganization Event; or

     (d) of the voluntary or involuntary dissolution, liquidation or winding-up of the Company;

the Company shall cause to be filed with the Trustee and to be mailed to each Noteholder at his
address appearing on the Note Register, provided for in Section 2.05 of this Indenture, as promptly
as possible but in any event at least twenty (20) days prior to the applicable date specified in
clause (x) or (y) below, as the case may be, a notice stating (x) the date on which a record is to
be taken for the purpose of such action by the Company or one of its Subsidiaries or, if a record
is

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not to be taken, the date as of which the holders of Common Stock of record are to be determined
for the purposes of such action by the Company or one of its Subsidiaries, or (y) the date on which
such Reorganization Event, dissolution, liquidation or winding-up is expected to become effective
or occur, and the date as of which it is expected that holders of Common Stock of record shall be
entitled to exchange their Common Stock for securities or other property deliverable upon such
Reorganization Event, dissolution, liquidation or winding-up. Failure to give such notice, or any
defect therein, shall not affect the legality or validity of such action by the Company or one of
its Subsidiaries, Reorganization Event, dissolution, liquidation or winding-up.

     Section 13.09. Exchange in Lieu of Conversion. (a) Notwithstanding anything in this
Indenture to the contrary, when a Holder surrenders Notes for conversion, the Company may, at its
election, direct the Conversion Agent to surrender, on or prior to the second Business Day
immediately following the applicable Conversion Date (assuming for purposes of this Section 13.10,
and for the purpose of determining the related Observation Period, that the date such Holder
surrenders such Notes for conversion is the Conversion Date for such Notes), such Notes to a
financial institution designated by the Company (a “Financial Institution”) for exchange in lieu of
conversion.

     (b) In order to accept any such Notes surrendered for conversion, the Financial Institution
must agree to pay, in exchange for such Notes, cash equal to the consideration due upon conversion
as provided in Section 13.03.

     (c) By the Close of Business on the second Business Day immediately following the applicable
Conversion Date, the Company must notify the Holder surrendering Notes for conversion that it has
directed the Financial Institution to make an exchange in lieu of conversion.

     (d) If the Financial Institution accepts any such Notes, it will deliver the appropriate
amount of cash due upon conversion to the Conversion Agent and the Conversion Agent will pay such
cash to the Holder on the third Scheduled Trading Day following the last Trading Day of the
applicable Observation Period. Any Notes exchanged by such Financial Institution will remain
outstanding.

     (e) If such Financial Institution agrees to accept any Notes for exchange but does not timely
deliver the related cash consideration, or if such Financial Institution does not accept the Notes
for exchange, the Company will, on the third Scheduled Trading Day immediately following the last
day of the Observation Period, convert the Notes into cash pursuant to Section 13.03 (based on such
assumed Conversion Date as described above).

     The Company’s designation of a Financial Institution to which the Notes may be submitted for
exchange does not require the Financial Institution to accept any Notes (unless the Financial
Institution has separately made an agreement with the Company). The Company may, but is not
obligated to, enter into a separate

79

 

agreement with the designated Financial Institution that would compensate it for any such
transactions.

     Except as otherwise provided in the Indenture, the Company will 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 Price of the Common Stock, accrued Interest payable on the
Notes and the Conversion Rate of the Notes. The Company will make all these calculations in good
faith and, absent manifest error, its calculations will be final and binding on Noteholders. The
Company will provide a schedule of the Company’s 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 its calculations without independent verification. The Trustee will forward
the Company’s calculations to any Noteholder upon the request of that Noteholder.

ARTICLE 14

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, then each Noteholder shall have the right, at
such Holder’s option, to require the Company to repurchase all of such Holder’s Notes or any
portion of the principal amount thereof that is equal to $1,000 or a multiple of $1,000, for cash
on the date (the “Fundamental Change Repurchase Date”) specified by the Company that is not less
than twenty (20) days and not more than thirty five (35) days after the date of the Fundamental
Change Repurchase Company Notice at a repurchase price equal to 100% of the principal amount
thereof, together with accrued and unpaid Interest thereon to, but excluding, the Fundamental
Change Repurchase Date (unless the Fundamental Change Repurchase Date is after a regular record
date but on or prior to the corresponding Interest Payment Date) (the “Fundamental Change
Repurchase Price”).

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

     (i) delivery to the Trustee (or other Paying Agent appointed by the Company) by a
Holder of a duly completed notice (the “Fundamental Change Repurchase Notice”) in the form
set forth on the reverse of the Note prior to the Close of Business on Business Day
immediately preceding the Fundamental Change Repurchase Date (the “Fundamental Change
Expiration Time”); and

     (ii) delivery or book-entry transfer of the Notes to be repurchased to the Trustee
(or other Paying Agent appointed by the

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Company) prior to the Fundamental Change Expiration Time (together with all necessary
endorsements) at the Corporate Trust Office of the Trustee (or other Paying Agent
appointed by the Company), such delivery being a condition to receipt by the Holder of the
Fundamental Change Repurchase Price therefor; provided that such Fundamental Change
Repurchase Price shall be so paid pursuant to this Section 14.01 only if the Note so
delivered to the Trustee (or other Paying Agent appointed by the Company) shall conform in
all respects to the description thereof in the related Fundamental Change Repurchase
Notice.

The Fundamental Change Repurchase Notice shall state:

     (A) if certificated, the certificate numbers of Notes to be delivered for
repurchase;

     (B) the portion of the principal amount of Notes to be repurchased, which
must be $1,000 or a multiple thereof, and

     (C) 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 not in certificated form, the Fundamental Change
Repurchase Notice must comply with appropriate procedures of the Depositary.

     Any purchase by the Company contemplated pursuant to the provisions of this Section 14.01
shall be consummated by the delivery of the consideration to be received by the Holder on the later
of the Fundamental Change Repurchase Date and the time of the book-entry transfer or delivery of
the Note surrendered for repurchase.

     The Trustee (or other Paying Agent appointed by the Company) shall promptly notify the Company
of the receipt by it of any Fundamental Change Repurchase Notice or written notice of withdrawal
thereof in accordance with the provisions of Section 14.01(d).

     Any Note that is to be repurchased only in part shall be surrendered to the Trustee (with, if
the Company or the Trustee so requires, due endorsement by, or a written instrument of transfer in
form satisfactory to the Company and the Trustee duly executed by the Holder thereof or his
attorney duly authorized in writing), and the Company shall execute, and the Trustee shall
authenticate and make available for delivery to the Holder of such Note without service charge, a
new Note or Notes, containing identical terms and conditions, each in an authorized denomination
such that the aggregate principal amount of such new Note or Notes is equal to the unrepurchased
portion of the principal amount of the Note so surrendered, which portion must be no less than
$2,000.

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     (b) On or before the 20th day after the date on which any Fundamental Change occurs
or is effective, the Company shall provide to all Holders of record of the Notes and the Trustee
and Paying Agent a notice (the “Fundamental Change Repurchase Company Notice”) of the occurrence of
such Fundamental Change and of the repurchase right at the option of the Holders arising as a
result thereof. Such mailing shall be by first class mail. Simultaneously with providing such
Fundamental Change Repurchase Company Notice, the Company shall publish a notice containing the
information included therein in a newspaper of general circulation in The City of New York, or
publish the information on the Company’s website or through such other public medium as the Company
may use at such time.

     Each Fundamental Change Repurchase Company Notice shall specify:

     (i) the events causing the Fundamental Change;

     (ii) the date of the Fundamental Change;

     (iii) the Fundamental Change Repurchase Date and the last date on which a Holder may
exercise the repurchase right;

     (iv) the Fundamental Change Repurchase Price;

     (v) the name and address of the Paying Agent and the Conversion Agent;

     (vi) the applicable Conversion Rate and any adjustments to the applicable Conversion
Rate;

     (vii) 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;

     (viii) that the Holder must exercise the repurchase right before the Fundamental
Change Expiration Time;

     (ix) that the Holder shall have the right to withdraw any Notes surrendered prior to
the Fundamental Change Expiration Time, and

     (x) 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
Noteholders’ repurchase rights or affect the validity of the proceedings for the repurchase of the
Notes pursuant to this Section 14.01.

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     (c) Notwithstanding the foregoing, no Notes may be repurchased by the Company at the option of
the Holders upon a Fundamental Change if there has occurred and is continuing an Event of Default
(except in the case of an Event of Default that is cured by 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 certificated 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) and shall deem to be cancelled
any instructions for book-entry transfer of the Notes in compliance with the procedures of the
Depositary, in which case, 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.

     (d) A Fundamental Change Repurchase Notice may be withdrawn by means of a written notice of
withdrawal delivered to the Paying Agent in accordance with the Fundamental Change Repurchase
Company Notice at any time prior to the Close of Business on the Business Day immediately preceding
the Fundamental Change Repurchase Date, specifying:

     (i) if certificated Notes have been issued, the certificate numbers of the withdrawn
Notes,

     (ii) the principal amount of the Note with respect to which such notice of withdrawal
is being submitted; provided that the principal amount of such Note, after giving effect
to (x) such withdrawal and (y) the principal amount, if any, that remains subject to the
original Fundamental Change Repurchase Notice is equal to $2,000 or a multiple of $1,000
in excess of that amount; 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 a multiple of $1,000;

provided, however, that if the Notes are not in certificated form, the notice must comply with
appropriate procedures of the Depositary.

     (e) On or prior to 11:00 a.m. (local time in The City of New York) on the Fundamental Change
Repurchase Date, 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 6.05) an amount of money sufficient to pay the Fundamental Change Repurchase
Price on all of the Notes to be repurchased. 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 Fundamental Change Expiration Time will be made on the
later of (x) the Fundamental Change Repurchase Date with respect to such Note (provided

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the Holder has satisfied the conditions to the payment of the Fundamental Change Repurchase
Price in Section 14.01) and (y) 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.

     (f) If the Trustee (or other Paying Agent appointed by the Company) holds money sufficient to
repurchase on the Fundamental Change Repurchase Date all the Notes or portions thereof that are to
be purchased as of such Fundamental Change Repurchase Date, then on and after the Fundamental
Change Repurchase Date (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
upon delivery of the Notes.

     Section 14.02. 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;

     (b) file a Schedule TO or any successor or similar schedule; 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 14 to be exercised in
the time and in the manner specified in this Article 14.

ARTICLE 15

Miscellaneous Provisions

     Section 15.01. 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.

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     Section 15.02. Official Acts by Successor Corporation. Any act or proceeding by any
provision of this Indenture authorized or required to be done or performed by the Board of
Directors or any committee thereof or any 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 Successor
Corporation that shall at the time be the lawful sole successor of the Company.

     Section 15.03. Addresses for Notices, Etc. Any notice or demand which by any provision of
this Indenture is required or permitted to be given or served by the Trustee or by the Noteholders
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 Cadence Design
Systems, Inc., 2655 Seely Avenue, Building 5, San Jose, California 95134, Attention: General
Counsel. 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 and such notice references the Notes and this Indenture.

     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 Noteholder shall be mailed to him by first class mail,
postage prepaid, at the address of such Noteholder as it appears on the Note Register and shall be
sufficiently given to him if so mailed within the time prescribed.

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

     Section 15.04. Governing Law. THIS INDENTURE AND EACH NOTE SHALL BE DEEMED TO BE A CONTRACT
MADE UNDER THE LAWS OF THE STATE OF NEW YORK, AND FOR ALL PURPOSES SHALL BE CONSTRUED IN ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO CONTRACTS ENTERED INTO AND TO BE PERFORMED
THEREIN (WITHOUT REGARD TO CONFLICT OF LAW PRINCIPLES OTHER THAN SECTIONS 5-1401 AND 5-1402 OF THE
NEW YORK GENERAL OBLIGATIONS LAW).

     Section 15.05. 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, the Company shall furnish to the Trustee an
Officers’

85

 

Certificate stating that all conditions precedent, if any, provided for in this Indenture
relating to the proposed action have been complied with, and an Opinion of Counsel stating that, in
the opinion of such counsel, all such conditions precedent have been complied with.

     Each certificate or opinion provided for by or on behalf of the Company in this Indenture and
delivered to the Trustee with respect to compliance with a condition or covenant provided for in
this Indenture shall include (1) a statement that the person making such certificate or opinion has
read such covenant or condition; (2) a brief statement as to the nature and scope of the
examination or investigation upon which the statement or opinion contained in such certificate or
opinion is based; (3) a statement that, in the opinion of such person, he has made such examination
or investigation as is necessary to enable him to express an informed opinion as to whether or not
such covenant or condition has been complied with; and (4) a statement as to whether or not, in the
opinion of such person, such condition or covenant has been complied with.

     Section 15.06. 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
for the period from and after such date to the next succeeding Business Day.

     Section 15.07. 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 15.08. 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 any of their successors
hereunder, and the Noteholders, any benefit or any legal or equitable right, remedy or claim under
this Indenture.

     Section 15.09. 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 15.10. Authenticating Agent. The Trustee may appoint an authenticating agent which
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 and Section 2.07, 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.

86

 

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 6.09.

     Any corporation into which any authenticating agent may be merged or converted or with which
it may be consolidated, or any corporation resulting from any merger, consolidation or conversion
to which any authenticating agent shall be a party, or any corporation succeeding to the corporate
trust business of any authenticating agent, shall be the successor of the authenticating agent
hereunder, if such successor corporation 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.

     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 shall promptly
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 Noteholders 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 reasonable
compensation for its services although the Company may terminate the authenticating agent, if it
determines such agent’s fees to be unreasonable.

     The provisions of Section 6.02, Section 6.03, Section 6.04, Section 7.03 and this Section
15.10 shall be applicable to any authenticating agent.

     Section 15.11. 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.

     Section 15.12. USA PATRIOT Act. The parties hereto acknowledge that in accordance with
Section 326 of the USA PATRIOT Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001))
(as amended, modified or supplemented from time to time, 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 Deutsche Bank Trust Company
Americas. The parties to this Indenture agree that

87

 

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.

88

 

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

	 	 	 	 	 
	 	CADENCE DESIGN SYSTEMS, INC.

 	 
	 	By:  	/s/ Kevin S. Palatnik
 	 
	 	 	Name:  	Kevin S. Palatnik 	 
	 	 	Title:  	Senior Vice President and Chief Financial
Officer 	 
	 
	 	DEUTSCHE BANK TRUST COMPANY AMERICAS,

as Trustee

 	 
	 	By:  	/s/ Cynthia J. Powell
 	 
	 	 	Name:  	Cynthia J. Powell 	 
	 	 	Title:  	Vice President 	 
	 
	 	 	 
	 	By:  	/s/ David Contino
 	 
	 	 	Name:  	David Contino 	 
	 	 	Title:  	Vice President 	 

 

 

	 	 	 	 	 

EXHIBIT A

     THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND THE RULES
AND REGULATIONS PROMULGATED THEREUNDER (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD,
PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS
ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER:

     (1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED
INSTITUTIONAL BUYER” (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT
IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND

     (2) AGREES FOR THE BENEFIT OF THE COMPANY THAT IT WILL NOT OFFER, SELL, PLEDGE OR
OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO THE DATE THAT
IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE HEREOF OR SUCH SHORTER
PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY SUCCESSOR
PROVISION THERETO, AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW,
EXCEPT:

     (A) TO CADENCE DESIGN SYSTEMS, INC. (THE “COMPANY”) OR ANY SUBSIDIARY
THEREOF, OR

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

     (C) TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER
THE SECURITIES ACT, OR

     (D) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER
THE SECURITIES ACT OR ANY SIMILAR PROVISION OF THE SECURITIES ACT.

     PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH (2)(D) ABOVE, THE COMPANY AND THE
TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER
EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING
MADE IN COMPLIANCE WITH THE

A-1

 

SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION IS MADE AS TO THE
AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS
REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS NOTE MAY NOT BE EXCHANGED IN
WHOLE OR IN PART FOR A NOTE REGISTERED, AND NO TRANSFER OF THIS NOTE IN WHOLE OR IN PART MAY BE
REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN
THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY (“DTC”), A NEW YORK CORPORATION, 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.]

CADENCE DESIGN SYSTEMS, INC.

2.625% Cash Convertible Senior Notes due 2015

			
	No.1
	 	$300,000,000

CUSIP No. 127387 AG3

ISIN: US127387AG30

     Cadence Design Systems, Inc., a corporation duly organized and validly existing under the laws
of the State of Delaware (herein called the “Company,” which term includes any successor
corporation under the Indenture referred to on the reverse hereof), for value received hereby
promises to pay to CEDE & CO., or registered assigns, the principal sum of $300,000,000 or such
other principal amount as shall be set forth on Schedule I hereto on June 1, 2015.

     This Note shall bear interest at the rate of 2.625% per year from June 15, 2010 or from the
most recent date to which interest had been paid or provided. Interest is payable semi-annually in
arrears on each June 1 and December 1, commencing December 1, 2010, to Holders of record at the
Close of Business on the preceding May 15 and November 15, respectively. Interest payable on each

A-2

 

Interest Payment Date shall equal the amount of interest accrued from and including the
immediately preceding Interest Payment Date (or from and including June 15, 2010 if no interest has
been paid hereon) to but excluding such Interest Payment Date.

     Payment of the principal of and Interest accrued on this Note shall be made at the office or
agency of the Company maintained for that purpose, or, at the option of the Holder of this Note, at
the Corporate Trust Office, in such lawful money of the United States of America as at the time of
payment shall be legal tender for the payment of public and private debts; provided, however,
interest may be paid by check mailed to such Holder’s address as it appears in the Note Register;
provided, further, however, that, with respect to any Noteholder with an aggregate principal amount
in excess of $1,000,000, at the application of such Holder in writing to the Company, interest on
such Holder’s Notes shall be paid by wire transfer in immediately available funds to such Holder’s
account in the United States supplied by such Holder from time to time to the Trustee and Paying
Agent (if different from the Trustee) not later than the applicable record date; provided that any
payment to the Depositary or its nominee shall be paid by wire transfer in immediately available
funds in accordance with the wire transfer instruction supplied by the Depositary or its nominee
from time to time to the Trustee and Paying Agent (if different from Trustee).

     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 on the terms and subject to the limitations referred to on the reverse hereof and as
more fully specified in the Indenture. Such further provisions shall for all purposes have the
same effect as though fully set forth at this place.

     This Note shall be deemed to be a contract made under the laws of the State of New York, and
for all purposes shall be construed in accordance with the laws of the State of New York applicable
to contracts entered into and to be performed therein.

     This Note shall not be valid or become obligatory for any purpose until (a) this Note shall
have been signed in the name and on behalf of the Company by the manual or facsimile signature of
any officer of the Company authorized to do so under the Indenture and (b) the certificate of
authentication hereon shall have been manually signed by the Trustee or a duly authorized
authenticating agent under the Indenture.

[Remainder of page intentionally left blank]

A-3

 

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

	 	 	 	 	 
	 	CADENCE DESIGN SYSTEMS, INC.

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 
	 	 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

	 	 	 	 	 
	TRUSTEE’S CERTIFICATE OF

AUTHENTICATION

DEUTSCHE BANK TRUST COMPANY

AMERICAS,

as Trustee, certifies that this is

one of the Notes described in the

within-named Indenture.

 	 	 
	By:  	 	 	 
	 	Name:  	 	 	 
	 	Authorized Officer: 	 	 

A-4

 

	 	 	 	 	 

[FORM OF REVERSE OF NOTE]

CADENCE DESIGN SYSTEMS, INC.

2.625% Cash Convertible Senior Notes due 2015

     This Note is one of a duly authorized issue of Notes of the Company, designated as its 2.625%
Cash Convertible Senior Notes due 2015 (herein called the “Notes”), issued under and pursuant to an
Indenture dated as of June 15, 2015 (herein called the “Indenture”), between the Company and
Deutsche Bank Trust Company Americas (herein called 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.

     In the event of a deposit or withdrawal of an interest in this Note, including an exchange,
transfer, repurchase or conversion of this Note in part only, the Trustee, as custodian of the
Depositary, shall make an adjustment on its records to reflect such deposit or withdrawal in
accordance with the rules and procedures of the Depositary.]

     Subject to certain limitations in the Indenture, at any time when the Company is not subject
to Section 13 or 15(d) of the United States Securities Exchange Act of 1934, as amended, upon the
request of a Holder of a Restricted Security, the Company will promptly furnish or cause to be
furnished Rule 144A Information (as defined below) to such Holder of Restricted Securities, or to a
prospective purchaser of any such Note designated by any such Holder, to the extent required to
permit compliance by any such Holder with Rule 144A under the Securities Act of 1933, as amended
(the “Securities Act”). “Rule 144A Information” shall be such information as is specified pursuant
to Rule 144A(d)(4) under the Securities Act (or any successor provision thereto).]

     In case an Event of Default, as defined in the Indenture, shall have occurred and be
continuing, the principal of, and accrued and unpaid Interest on, all Notes, may be declared, and
upon said declaration shall become, due and payable, in the manner, with the effect and subject to
the conditions provided 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 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 all such cash amounts in money of the
United States that at the time of payment is legal tender for payment of public and private debts.

A-5

 

     The Indenture contains provisions permitting the Company and the Trustee in certain
circumstances, without the consent of the Holders of the Notes, and in 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
adding any provisions to or changing in any manner or eliminating any of the provisions of the
Indenture or of any supplemental indenture or modifying in any manner the rights of the Holders of
the Notes; provided, however, that no such supplemental indenture shall make any of the changes set
forth in Section 9.02 of the Indenture, without the consent of each Holder of an outstanding Note
affected thereby. It is also provided in the Indenture that, prior to any declaration accelerating
the maturity of the Notes, 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 except as provided in the Indenture. Any
such consent or waiver by the Holder of this Note (unless revoked as provided in the Indenture)
shall be conclusive and binding upon such Holder and upon all future Holders and owners of this
Note and any Notes which may be issued in exchange or substitution hereof, irrespective of whether
or not any notation thereof is made upon this Note or such other Notes.

     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 the
principal (including the Fundamental Change Repurchase Price, if applicable) of, and accrued and
unpaid Interest on, 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 $2,000 principal
amount and multiples of $1,000 in excess 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,
without payment of any service charge but with payment of a sum sufficient to cover any tax or
other governmental charge that may be imposed in connection with any registration or exchange of
Notes, Notes may be exchanged for a like aggregate principal amount of Notes of other authorized
denominations.

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

     Upon the occurrence of a Fundamental Change, the Holder has the right, at such Holder’s
option, to require the Company to repurchase all of such Holder’s Notes or any portion thereof (in
principal amounts of $1,000 or multiples thereof) on the Fundamental Change Repurchase Date at a
price equal to 100% of the principal amount of the Notes such Holder elects to require the Company
to repurchase, together with accrued and unpaid Interest to but excluding the Fundamental Change
Repurchase Date. The Company shall mail to

A-6

 

all Holders of record of the Notes a notice of the occurrence of a Fundamental Change and of
the repurchase right arising as a result thereof by the date specified in the Indenture.

     Subject to the provisions of the Indenture, the Holder hereof has the right, at its option, on
and after March 1, 2015, or earlier upon the occurrence of certain conditions specified in the
Indenture and prior to the Close of Business on the second Scheduled Trading Day immediately
preceding the Maturity Date, to convert any Notes or portion thereof which is $1,000 or a multiple
thereof, into cash at the Conversion Rate specified in the Indenture, as adjusted from time to time
as provided in the Indenture, upon surrender of this Note, together with a Notice of Conversion, a
form of which is attached to the Note, as provided in the Indenture and this Note, to the office of
the Conversion Agent, and duly endorsed by, or accompanied by instruments of transfer in form
satisfactory to the Company duly executed by, the Holder or by his duly authorized attorney. The
initial Conversion Rate shall be equivalent to 132.5205 shares for each $1,000 principal amount of
Notes.

     Upon due presentment for registration of transfer of this Note at the office or agency of the
Company maintained for such purpose, a new Note or Notes of authorized denominations for an equal
aggregate principal amount will be issued to the transferee in exchange thereof, subject to the
limitations provided in the Indenture, without charge except for any tax, assessments or other
governmental charge imposed in connection therewith.

     The Company, the Trustee, any authenticating agent, any Paying Agent, any Conversion Agent and
any Note Registrar may deem and treat the Holder hereof as the absolute owner of this Note (whether
or not this Note shall be overdue and notwithstanding any notation of ownership or other writing
hereon), for the purpose of receiving payment hereof, or on account hereof, for the conversion
hereof and for all other purposes, and neither the Company nor the Trustee nor any other
authenticating agent nor any Paying Agent nor any other Conversion Agent nor any Note Registrar
shall be affected by any notice to the contrary. All payments made to or upon the order of such
registered Holder shall, to the extent of the sum or sums paid, satisfy and discharge liability for
monies payable on this Note.

     No recourse for the payment of the principal of, or accrued and unpaid Interest on, this Note,
or for any claim based hereon or otherwise in respect hereof, and no recourse under or upon any
obligation, covenant or agreement of the Company in the Indenture or any indenture supplemental
thereto or in any Note, or because of the creation of any Indebtedness represented thereby, shall
be had against any incorporator, stockholder, employee, agent, officer, director or subsidiary, as
such, past, present or future, of the Company or of any successor corporation, either directly or
through the Company or any successor corporation, whether by virtue of any constitution, statute or
rule of law or by the enforcement of any assessment or penalty or otherwise, all such liability
being, by the

A-7

 

acceptance hereof and as part of the consideration for the issue hereof, expressly waived and
released.

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

     Customary abbreviations may be used in the name of a Holder or an assignee, such as TEN COM
(=tenants in common), TENANT (=tenants by the entireties), JT TEN (joint tenants with right of
survivorship and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform gift to Minors
Act)

A-8

 

ATTACHMENT 1

[FORM OF NOTICE OF CONVERSION]

	To: 	 	 CADENCE DESIGN SYSTEMS, INC.

DEUTSCHE BANK TRUST COMPANY AMERICAS, as Conversion Agent

     The undersigned registered owner of this Note hereby exercises the option to convert this
Note, or the portion hereof (which is $1,000 principal amount or a multiple thereof) below
designated, into cash in accordance with the terms of the Indenture referred to in this Note, and
directs that the cash deliverable upon such conversion, together with 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 portion of this Note not converted is to be
issued in the name of a person other than the undersigned, the undersigned will pay all transfer
taxes payable with respect thereto. Any amount required to be paid to the undersigned on account
of interest accompanies this Note.

Dated: __________________

	 	 	 	 	 

	 

	 	 

	 	 
	 
	 	 	 	 
	 

	 	 

Signature(s)
	 	 
	 
	 	 	 	 
	 

	 	Signature(s) must be guaranteed by an “eligible
guarantor institution” meeting the requirements of the
Note Registrar, which requirements include membership
or participation in the Security Transfer Agent
Medallion Program (“STAMP”) or such other “signature
guarantee program” as may be determined by the Note
Registrar in addition to, or in substitution for,
STAMP, al in accordance with the Securities Exchange
Act of 1934, as amended.	 	 
	 
	 	 	 	 
	 
	 	 	 	 
	 

	 	 

Signature Guarantee
	 	 

A-9

 

	 	 	 	 	 

	 

	 	Principal amount to be converted
(if less than all): $___,000	 	 
	 
	 	 	 	 
	 
	 	 	 	 
	 

	 	 

Social Security or Other Taxpayer 

Identification Number:                                 
	 	 

A-10

 

ATTACHMENT 2

[FORM OF FUNDAMENTAL CHANGE REPURCHASE NOTICE]

To: Cadence Design Systems, Inc.

     The undersigned registered owner of this Note hereby acknowledges receipt of a notice from
Cadence Design Systems, Inc. (the “Company”) as to the occurrence of a Fundamental Change with
respect to the Company and requests and instructs the Company to repay the entire principal amount
of this Note, or the portion thereof (which is $1,000 principal amount or a multiple thereof) below
designated, in accordance with the terms of the Indenture referred to in this Note, to the
registered holder hereof.

Dated: __________________

	 	 	 	 	 

	 

	 	 

	 	 
	 
	 	 	 	 
	 

	 	 

Signature(s)
	 	 
	 
	 	 	 	 
	 

	 	 

Social Security or Other Taxpayer Identification
Number
Principal amount to be repaid (if less than all): $_,000
	 	 
	 
	 	 	 	 
	 

	 	NOTICE: The above signatures 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]

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

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

	 	o 	 	 To Cadence Design Systems, Inc. or a subsidiary thereof; or
	 
	 	o 	 	 Pursuant to and in compliance with Rule 144A under the Securities Act of 1933, as
amended; or
	 
	 	o  	 	Pursuant to and in compliance with Rule 144 under the Securities Act of 1933, as
amended; or
	 
	 	o 	 	 Pursuant to a Registration Statement which has become effective under the
Securities Act of 1933, as amended, and which continues to be effective at the time
of transfer;
	 
	 	o 	 	 Pursuant to another available exemption from registration under the Securities Act
of 1933, as amended.

and unless the Note has been transferred to Cadence Design Systems, Inc. or a subsidiary thereof,
the undersigned confirms that such Note is not being transferred to an “affiliate” of the Company
as defined in Rule 144 under the Securities Act of 1933, as amended.

     Unless one of the boxes is checked, the Note Registrar will refuse to register any of the
Notes evidenced by this certificate in the name of any person other than the registered holder
thereof.

Dated: _____________________

	 	 	 	 	 

	 

	 	 

	 	 
	 
	 	 	 	 
	 

	 	 

Signature(s)
	 	 

 

	 	 	 	 	 

	 

	 	Signature(s) must be guaranteed by an “eligible
guarantor institution” meeting the requirements of the
Note Registrar, which requirements include membership
or participation in the Security Transfer Agent
Medallion Program (“STAMP”) or such other “signature
guarantee program” as may be determined by the Note
Registrar in addition to, or in substitution for,
STAMP, al in accordance with the Securities Exchange
Act of 1934, as amended.	 	 
	 
	 	 	 	 
	 

	 	 

Signature Guarantee
	 	 
	 
	 	 	 	 
	 

	 	NOTICE: The signature on the Conversion Notice, the
Option to Elect Redemption Upon a Fundamental Change,
or
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
whatsoever.	 	 

 

Schedule l

CADENCE DESIGN SYSTEMS, INC.

2.625% Cash Convertible Senior Notes Due 2015

No. 1

	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	Notation Explaining	 	Authorized Signature
	 	 	 	 	 	 	 	 	Principal Amount	 	of Trustee or
	Date	 	Principal Amount	 	Recorded	 	Custodian

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