Document:

Exhibit 4.1

Exhibit 4.1

HUMAN GENOME SCIENCES, INC.

Issuer

AND

The Bank of New York Mellon Trust Company, N.A.

Trustee

INDENTURE Dated as of November 7, 2011

Senior Debt Securities

 

 

 

CROSS-REFERENCE TABLE 1

	 	 	 
	Section of Trust Indenture Act of 1939, as Amended

	 	Indenture
	310(a)

	 	7.10 
	310(b)

	 	7.09; 7.11 
	310(c)

	 	Inapplicable
	311(a)

	 	7.14(a) 
	311(b)

	 	7.14(b) 
	311(c)

	 	Inapplicable
	312(a)

	 	5.02(a) 
	312(b)

	 	5.02(c) 
	312(c)

	 	5.02(c) 
	313(a)

	 	5.04(a) 
	313(b)

	 	5.04(b) 
	313(c)

	 	5.04(a); 5.04(b) 
	313(d)

	 	5.04(c) 
	314(a)

	 	5.03; 4.06 
	314(b)

	 	Inapplicable
	314(c)

	 	13.07 
	314(d)

	 	Inapplicable
	314(e)

	 	13.07 
	314(f)

	 	Inapplicable
	315(a)

	 	7.01(a); 7.03 
	315(b)

	 	7.02 
	315(c)

	 	7.01 
	315(d)

	 	7.01(b); 7.01(c) 
	315(e)

	 	6.07; 7.07 
	316(a)

	 	6.06 8.04 
	316(b)

	 	6.04 
	316(c)

	 	8.01 
	317(a)

	 	6.02 
	317(b)

	 	4.03 
	318(a)

	 	13.08 

 

	 	 	 
	1	 	This Cross-Reference Table does not constitute part of
the Indenture and shall not have any bearing on the interpretation of any of
its terms or provisions.

 

 

 

TABLE OF CONTENTS2

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	ARTICLE I DEFINITIONS AND RULES OF CONSTRUCTION
	 	 	1	 
	 
	 	 	 	 
	Section 1.01 Definitions of Terms
	 	 	1	 
	Section 1.02 Rules of Construction
	 	 	5	 
	 
	 	 	 	 
	ARTICLE II ISSUE, DESCRIPTION, TERMS, EXECUTION, REGISTRATION AND EXCHANGE OF SECURITIES
	 	 	6	 
	 
	 	 	 	 
	Section 2.01 Designation and Terms of Securities
	 	 	6	 
	Section 2.02 Form of Securities and Trustee’s Certificate
	 	 	8	 
	Section 2.03 Denominations: Provisions for Payment
	 	 	8	 
	Section 2.04 Execution and Authentication
	 	 	9	 
	Section 2.05 Registration of Transfer and Exchange
	 	 	10	 
	Section 2.06 Temporary Securities
	 	 	12	 
	Section 2.07 Mutilated, Destroyed, Lost or Stolen Securities
	 	 	11	 
	Section 2.08 Cancellation
	 	 	12	 
	Section 2.09 Benefits of Indenture
	 	 	13	 
	Section 2.10 Authenticating Agent
	 	 	13	 
	Section 2.11 Global Securities
	 	 	13	 
	 
	 	 	 	 
	ARTICLE III REDEMPTION OF SECURITIES AND SINKING FUND PROVISIONS
	 	 	15	 
	 
	 	 	 	 
	Section 3.01 Redemption
	 	 	15	 
	Section 3.02 Notice of Redemption
	 	 	15	 
	Section 3.03 Payment Upon Redemption
	 	 	16	 
	Section 3.04 Sinking Fund
	 	 	16	 
	Section 3.05 Satisfaction of Sinking Fund Payments with Securities
	 	 	17	 
	Section 3.06 Redemption of Securities for Sinking Fund
	 	 	17	 
	 
	 	 	 	 
	ARTICLE IV COVENANTS
	 	 	17	 
	 
	 	 	 	 
	Section 4.01 Payment of Principal, Premium and Interest
	 	 	17	 
	Section 4.02 Maintenance of Office or Agency
	 	 	18	 
	Section 4.03 Paying Agents
	 	 	18	 

 

	 	 	 
	2	 	This Table of Contents does not constitute part of the
Indenture and shall not have any bearing on the interpretation of any of its
terms or provisions.

 

-i-

 

TABLE OF CONTENTS
(continued)

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	Section 4.04 Appointment to Fill Vacancy in Office of Trustee
	 	 	19	 
	Section 4.05 Compliance with Consolidation Provisions
	 	 	19	 
	Section 4.06 Statement by Officers as to Default
	 	 	20	 
	 
	 	 	 	 
	ARTICLE V SECURITYHOLDERS’ LISTS AND REPORTS BY THE COMPANY AND THE TRUSTEE
	 	 	20	 
	 
	 	 	 	 
	Section 5.01 Company to Furnish Trustee Names and Addresses of Securityholders
	 	 	20	 
	Section 5.02 Preservation Of Information; Communications With Securityholders
	 	 	20	 
	Section 5.03 Reports by the Company
	 	 	21	 
	Section 5.04 Reports by the Trustee
	 	 	21	 
	 
	 	 	 	 
	ARTICLE VI REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS ON EVENT OF DEFAULT
	 	 	22	 
	 
	 	 	 	 
	Section 6.01 Events of Default
	 	 	22	 
	Section 6.02 Collection of Indebtedness and Suits for Enforcement by Trustee
	 	 	24	 
	Section 6.03 Application of Moneys Collected
	 	 	25	 
	Section 6.04 Limitation on Suits
	 	 	26	 
	Section 6.05 Rights and Remedies Cumulative; Delay or Omission Not Waiver
	 	 	27	 
	Section 6.06 Control by Securityholders
	 	 	27	 
	Section 6.07 Undertaking to Pay Costs
	 	 	27	 
	 
	 	 	 	 
	ARTICLE VII CONCERNING THE TRUSTEE
	 	 	28	 
	 
	 	 	 	 
	Section 7.01 Certain Duties and Responsibilities of Trustee
	 	 	28	 
	Section 7.02 Notice of Defaults
	 	 	29	 
	Section 7.03 Certain Rights of Trustee
	 	 	29	 
	Section 7.04 Trustee Not Responsible for Recitals or Issuance or Securities
	 	 	30	 
	Section 7.05 May Hold Securities
	 	 	31	 
	Section 7.06 Moneys Held in Trust
	 	 	31	 
	Section 7.07 Compensation and Reimbursement
	 	 	31	 
	Section 7.08 Reliance on Officers’ Certificate
	 	 	31	 
	Section 7.09 Disqualification; Conflicting Interests
	 	 	32	 

 

-ii-

 

TABLE OF CONTENTS
(continued)

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	Section 7.10 Corporate Trustee Required; Eligibility
	 	 	32	 
	Section 7.11 Resignation and Removal; Appointment of Successor
	 	 	32	 
	Section 7.12 Acceptance of Appointment By Successor
	 	 	34	 
	Section 7.13 Merger, Conversion, Consolidation or Succession to Business
	 	 	35	 
	Section 7.14 Preferential Collection of Claims Against the Company
	 	 	35	 
	 
	 	 	 	 
	ARTICLE VIII CONCERNING THE SECURITYHOLDERS
	 	 	36	 
	 
	 	 	 	 
	Section 8.01 Evidence of Action by Securityholders
	 	 	36	 
	Section 8.02 Proof of Execution by Securityholders
	 	 	36	 
	Section 8.03 Who May be Deemed Owners
	 	 	36	 
	Section 8.04 Certain Securities Owned by Company Disregarded
	 	 	37	 
	Section 8.05 Actions Binding on Future Securityholders
	 	 	37	 
	 
	 	 	 	 
	ARTICLE IX SUPPLEMENTAL INDENTURES
	 	 	37	 
	 
	 	 	 	 
	Section 9.01 Supplemental Indentures Without the Consent of Securityholders
	 	 	37	 
	Section 9.02 Supplemental Indentures With Consent of Securityholders
	 	 	39	 
	Section 9.03 Effect of Supplemental Indentures
	 	 	40	 
	Section 9.04 Securities Affected by Supplemental Indentures
	 	 	40	 
	Section 9.05 Execution of Supplemental Indentures
	 	 	40	 
	 
	 	 	 	 
	ARTICLE X SUCCESSOR ENTITY
	 	 	41	 
	 
	 	 	 	 
	Section 10.01 Company May Consolidate, Etc
	 	 	41	 
	Section 10.02 Successor Entity Substituted
	 	 	41	 
	Section 10.03 Evidence of Consolidation, Etc
	 	 	41	 
	 
	 	 	 	 
	ARTICLE XI SATISFACTION AND DISCHARGE; DEFEASANCE
	 	 	42	 
	 
	 	 	 	 
	Section 11.01 Satisfaction and Discharge
	 	 	42	 
	Section 11.02 Defeasance
	 	 	42	 
	Section 11.03 Deposited Moneys to be Held in Trust
	 	 	44	 
	Section 11.04 Payment of Moneys Held by Paying Agents
	 	 	44	 
	Section 11.05 Repayment to Company
	 	 	44	 
	 
	 	 	 	 
	ARTICLE XII IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS
	 	 	45	 
	 
	 	 	 	 
	Section 12.01 No Recourse
	 	 	45	 

 

-iii-

 

TABLE OF CONTENTS
(continued)

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	ARTICLE XIII MISCELLANEOUS PROVISIONS
	 	 	45	 
	 
	 	 	 	 
	Section 13.01 Effect on Successors and Assigns
	 	 	45	 
	Section 13.02 Actions by Successor
	 	 	45	 
	Section 13.03 Surrender of Company Powers
	 	 	45	 
	Section 13.04 Notices
	 	 	46	 
	Section 13.05 Governing Law
	 	 	47	 
	Section 13.06 Treatment of Securities as Debt
	 	 	47	 
	Section 13.07 Compliance Certificates and Opinions
	 	 	47	 
	Section 13.08 Payments on Business Days
	 	 	47	 
	Section 13.09 Conflict with Trust Indenture Act
	 	 	48	 
	Section 13.10 Counterparts
	 	 	48	 
	Section 13.11 Separability
	 	 	48	 
	Section 13.12 Assignment
	 	 	48	 

 

-iv-

 

INDENTURE, dated as of November 7, 2011, between Human Genome Sciences, Inc., a Delaware
corporation (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as trustee (the
“Trustee”):

WHEREAS, for its lawful corporate purposes, the Company has duly authorized the execution and
delivery of this Indenture to provide for the issuance of senior unsecured debt securities
(hereinafter referred to as the “Securities”), in an unlimited aggregate principal amount to be
issued from time to time in one or more series as in this Indenture provided, as registered
Securities without coupons, to be authenticated by the certificate of the Trustee;

WHEREAS, to provide the terms and conditions upon which the Securities are to be
authenticated, issued and delivered, the Company has duly authorized the execution of this
Indenture; and

WHEREAS, all things necessary to make this Indenture a valid agreement of the Company, in
accordance with its terms, have been done.

NOW, THEREFORE, in consideration of the premises and the purchase of the Securities by the
holders thereof, it is mutually covenanted and agreed as follows for the equal and ratable benefit
of the holders of Securities or of series thereof.

ARTICLE I

DEFINITIONS AND RULES OF CONSTRUCTION

Section 1.01 Definitions of Terms.

The terms defined in this Section (except as in this Indenture 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 and shall include
the plural as well as the singular. All other terms used in this Indenture that are defined in the
Trust Indenture Act of 1939, as amended, or that are by reference in said Trust Indenture Act
defined in the Securities Act of 1933, as amended (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
instrument.

“Authenticating Agent” means an authenticating agent with respect to all or any of the series
of Securities appointed with respect to all or any series of the Securities by the Trustee pursuant
to Section 2.10.

“Bankruptcy Law” means Title 11, U.S. Code, or any similar federal or state law for the relief
of debtors.

“Board of Directors” means the Board of Directors of the Company or any duly authorized
committee of such Board.

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

 

1

 

“Business Day” means, with respect to any series of Securities, any day other than a day on
which Federal or State banking institutions in the Borough of Manhattan, The City of New York, are
authorized or obligated by law, executive order or regulation to close.

“Certificate” means a certificate signed by the principal executive officer, the principal
financial officer or the principal accounting officer of the Company. The Certificate need not
comply with the provisions of Section 13.07.

“Company” means Human Genome Sciences, Inc., a corporation duly organized and existing under
the laws of the State of Delaware, and, subject to the provisions of Article X, shall also include
its successors and assigns.

“Corporate Trust Office” means the office of the Trustee at which, at any particular time, its
corporate trust business shall be principally administered, which office at the date hereof is
located at 525 William Penn Place, 38th Floor, Pittsburgh, PA 15259, Attn: Corporate
Trust, or such other address as the Trustee may designate from time to time by notice to the
Securityholders and the Company.

“Covenant Defeasance” has the meaning given in Section 11.02.

“Custodian” means any receiver, trustee, assignee, liquidator or similar official under any
Bankruptcy Law.

“Default” means any event, act or condition that with notice or lapse of time, or both, would
constitute an Event of Default.

“Defaulted Interest” has the meaning given in Section 2.03.

“Depositary” means, with respect to Securities of any series, for which the Company shall
determine that such Securities will be issued as a Global Security, The Depository Trust Company,
New York, New York, another clearing agency, or any successor registered as a clearing agency under
the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), or other applicable
statute or regulation, which, in each case, shall be designated by the Company pursuant to either
Section 2.01 or 2.11.

“Event of Default” means, with respect to Securities of a particular series any event
specified in Section 6.01, continued for the period of time, if any, therein designated.

“Exchange Act” means the Securities Exchange Act of 1934, as amended, or any successor statute
or statutes thereto.

“Global Security” means, with respect to any series of Securities, a Security executed by the
Company and delivered by the Trustee to the Depositary or pursuant to the Depositary’s instruction,
all in accordance with the Indenture, which shall be registered in the name of the Depositary or
its nominee.

 

2

 

“Governmental Obligations” means securities that are (i) direct obligations (other than
obligations subject to variation in principal repayment) of the United States of America for the
payment of which its full faith and credit is pledged or (ii) obligations of a Person controlled or
supervised by and acting as an agency or instrumentality of the United States of America, the
payment of which is unconditionally guaranteed as a full faith and credit obligation by the United
States of America that, in either case, are not callable or redeemable prior to maturity at the
option of the issuer thereof, and shall also include a depositary receipt issued by a bank (as
defined in Section 3(a)(2) of the Securities Act of 1933, as amended) as custodian with respect to
any such Governmental Obligation or a specific payment of principal of or interest on any such
Governmental Obligation held by such custodian for the account of the holder of such depositary
receipt; provided, however, that (except as required by law) such custodian is not authorized to
make any deduction from the amount payable to the holder of such depositary receipt from any amount
received by the custodian in respect of the Governmental Obligation or the specific payment of
principal of or interest on the Governmental Obligation evidenced by such depositary receipt.

“Herein”, “hereof” and “hereunder”, and other words of similar import, refer to this Indenture
as a whole and not to any particular Article, Section or other subdivision.

“Indenture” means this instrument as originally executed or as it may from time to time be
supplemented or amended by one or more indentures supplemental hereto entered into in accordance
with the terms hereof, including, for all purposes of this instrument and any such supplemental
indenture, the provisions of the Trust Indenture Act that are deemed to be a part of and govern
this instrument and any such supplemental indenture, respectively. The term “Indenture” shall also
include the terms of particular series of Securities established as contemplated by Section 2.01.

“Interest Payment Date”, when used with respect to any installment of interest on a Security
of a particular series, means the date specified in such Security or in a Board Resolution or in an
indenture supplemental hereto with respect to such series as the fixed date on which an installment
of interest with respect to Securities of that series is due and payable.

“Legal Defeasance” has the meaning given in Section 11.02.

“Officers’ Certificate” means a certificate signed by the President or a Vice President and by
the Treasurer or an Assistant Treasurer or the Controller or an Assistant Controller or the
Secretary or an Assistant Secretary of the Company that is delivered to the Trustee in accordance
with the terms hereof. Each such certificate shall include the statements provided for in Section
13.07, if and to the extent required by the provisions thereof.

“Opinion of Counsel” means an opinion in writing of legal counsel, who may be an employee of
or counsel for the Company that is delivered to the Trustee in accordance with the terms hereof.
Each such opinion shall include the statements provided for in Section 13.07, if and to the extent
required by the provisions thereof.

“Original Issue Discount Security” means any Security which provides for an amount less than
the principal amount thereof to be due and payable upon a declaration of acceleration of
the maturity thereof pursuant to Section 6.01.

 

3

 

“Outstanding”, when used with reference to Securities of any series, means, subject to the
provisions of Section 8.04, as of any particular time, all Securities of that series theretofore
authenticated and delivered by the Trustee under this Indenture, except (a) Securities theretofore
canceled by the Trustee or any paying agent, or delivered to the Trustee or any paying agent for
cancellation or that have previously been canceled; (b) Securities or portions thereof for the
payment or redemption of which moneys or Governmental Obligations 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 irrevocably set aside and segregated in trust by the Company (if the Company shall
act as its own paying agent); provided, however, that if such Securities or portions of such
Securities are to be redeemed prior to the maturity thereof, notice of such redemption shall have
been given as in Article III or provision satisfactory to the Trustee shall have been made for
giving such notice; and (c) Securities in lieu of or in substitution for which other Securities
shall have been authenticated and delivered pursuant to the terms of Section 2.07; provided,
however, that in determining whether the holders of the requisite principal amount of the
Outstanding Securities have given, made or taken any request, demand, authorization, direction,
notice, consent, waiver or other action hereunder as of any date, the principal amount of an
Original Issue Discount Security which shall be deemed to be Outstanding shall be the amount of the
principal thereof which would be due and payable as of such date upon acceleration of the maturity
thereof to such date pursuant to Section 6.01.

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

“Predecessor Security” of any particular Security means every previous Security evidencing all
or a portion of the same debt as that evidenced by such particular Security; and, for the purposes
of this definition, any Security authenticated and delivered under Section 2.07 in lieu of a lost,
destroyed or stolen Security shall be deemed to evidence the same debt as the lost, destroyed or
stolen Security.

“Responsible Officer” when used with respect to the Trustee means the Chairman of the Board of
Directors, the President, any Vice President, the Secretary, the Treasurer, any trust officer, any
corporate trust officer or any other officer or assistant officer of the Trustee customarily
performing functions similar to those performed by the Persons who at the time shall be such
officers, respectively, or to whom any corporate trust matter is referred because of his or her
knowledge of and familiarity with the particular subject and who shall have direct responsibility
for the administration of this Indenture.

“Securities” means the debt Securities authenticated and delivered under this Indenture.

“Securityholder”, “holder of Securities”, “registered holder”, or other similar term, means
the Person or Persons in whose name or names a particular Security shall be registered on the books
of the Company kept for that purpose in accordance with the terms of this Indenture.

“Security Register” has the meaning given in Section 2.05.

 

4

 

“Security Registrar” has the meaning given in Section 2.05.

“Subsidiary” means, with respect to any Person, (i) any corporation at least a majority of
whose outstanding Voting Stock shall at the time be owned, directly or indirectly, by such Person
or by one or more of its Subsidiaries or by such Person and one or more of its Subsidiaries, (ii)
any general partnership, limited liability company, joint venture or similar entity, at least a
majority of whose outstanding partnership or similar interests shall at the time be owned by such
Person, or by one or more of its Subsidiaries, or by such Person and one or more of its
Subsidiaries and (iii) any limited partnership of which such Person or any of its Subsidiaries is a
general partner.

“Trustee” means The Bank of New York Mellon Trust Company, N.A., and, subject to the
provisions of Article VII, shall also include its successors and assigns, and, if at any time there
is more than one Person acting in such capacity hereunder, “Trustee” shall mean each such Person.
The term “Trustee” as used with respect to a particular series of the Securities shall mean the
trustee with respect to that series.

“Trust Indenture Act” means the Trust Indenture Act of 1939, as amended, subject to the
provisions of Sections 9.01, 9.02, and 10.01, as in effect at the date of execution of this
instrument.

“Voting Stock”, as applied to stock of any Person, means shares, interests, participations or
other equivalents in the equity interest (however designated) in such Person having ordinary voting
power for the election of a majority of the directors (or the equivalent) of such Person, other
than shares, interests, participations or other equivalents having such power only by reason of the
occurrence of a contingency.

Section 1.02 Rules of Construction.

For all purposes of this Indenture, except as otherwise expressly provided or unless the
context otherwise requires:

(1) the terms defined in this Article have the meanings assigned to them in this Article and
include the plural as well as the singular;

(2) all other terms used herein which are defined in the Trust Indenture Act, either directly
or by reference therein, have the meanings assigned to them therein;

(3) all accounting terms not otherwise defined herein have the meanings assigned to them in
accordance with generally accepted accounting principles in the United States of America, and,
except as otherwise herein expressly provided, the term “generally accepted accounting principles”
with respect to any computation required or permitted hereunder shall mean such accounting
principles as are generally accepted in the United States of America at the date of such
computation; and

(4) the words “herein”, “hereof” and “hereunder” and other words of similar import refer to
this Indenture as a whole and not to any particular Article, Section or other subdivision.

 

5

 

ARTICLE II

ISSUE, DESCRIPTION, TERMS, EXECUTION, REGISTRATION AND EXCHANGE

OF SECURITIES

Section 2.01 Designation and Terms of Securities.

The aggregate principal amount of Securities that may be authenticated and delivered under
this Indenture is unlimited. The Securities may be issued in one or more series up to the aggregate
principal amount of Securities of that series from time to time authorized by or pursuant to a
Board Resolution or pursuant to one or more indentures supplemental hereto. Prior to the initial
issuance of Securities of any series, there shall be established in or pursuant to a Board
Resolution, and set forth in an Officers’ Certificate, or established in one or more indentures
supplemental hereto:

	 	(1)	 	the title of the Security of the series (which shall distinguish the Securities
of the series from all other Securities);

	 	(2)	 	any limit upon the aggregate principal amount of the Securities of that series
that may be authenticated and delivered under this Indenture (except for Securities
authenticated and delivered upon registration of transfer of, or in exchange for, or in
lieu of, other Securities of that series);

	 	(3)	 	the date or dates on which the principal of the Securities of the series is
payable and the place(s) of payment;

	 	(4)	 	the rate or rates at which the Securities of the series shall bear interest or
the manner of calculation of such rate or rates, if any;

	 	(5)	 	the date or dates from which such interest shall accrue, the Interest Payment
Dates on which such interest will be payable or the manner of determination of such
Interest Payment Dates, the place(s) of payment, and the record date or other method
for the determination of holders to whom interest is payable on any such Interest
Payment Dates;

	 	(6)	 	the right, if any, to extend the interest payment periods and the duration of
such extension;

	 	(7)	 	the period or periods within which, the price or prices at which and the terms
and conditions upon which, Securities of the series may be redeemed, in whole or in
part, at the option of the Company;

	 	(8)	 	the obligation, if any, of the Company to redeem or purchase Securities of the
series pursuant to any sinking fund or analogous provisions (including payments made in
cash in satisfaction of future sinking fund obligations) or at the option of a holder
thereof and the period or periods within which, the price or prices at which, and the
terms and conditions upon which, Securities of the series shall be redeemed or
purchased, in whole or in part, pursuant to such obligation;

 

6

 

	 	(9)	 	the form of the Securities of the series including the form of the Trustee’s
certificate of authentication for such series;

	 	(10)	 	if other than denominations of one thousand U.S. dollars ($1,000) or any
integral multiple thereof, the denominations in which the Securities of the series
shall be issuable;

	 	(11)	 	any and all other terms with respect to such series (which terms shall not be
inconsistent with the terms of this Indenture, as amended by any supplemental
indenture) including any terms which may be required by or advisable under United
States laws or regulations or advisable in connection with the marketing of Securities
of that series;

	 	(12)	 	whether the Securities are issuable as a Global Security and, in such case, the
identity of the Depositary for such series;

	 	(13)	 	whether the Securities will be convertible into shares of common stock or other
securities of the Company and, if so, the terms and conditions upon which such
Securities will be so convertible, including the conversion price and the conversion
period;

	 	(14)	 	if other than the principal amount thereof, the portion of the principal amount
of Securities of the series which shall be payable upon declaration of acceleration of
the maturity thereof pursuant to Section 6.01;

	 	(15)	 	any additional or different Events of Default or restrictive covenants provided
for with respect to the Securities of the series;

	 	(16)	 	if applicable, that the Securities of the series, in whole or in specified
part, shall be defeasible pursuant to Section 11.02 and, if other than by a Board
Resolution, the manner in which any election by the Company to defease such Securities
shall be evidenced; and

	 	(17)	 	if other than the currency of the United States of America, the currency,
currencies or currency units in which the principal of or any premium or interest on
any Securities of the series shall be payable and the manner of determining the
equivalent thereof in the currency of the United States of America for any purpose,
including for purposes of the definition of “Outstanding” in Section 1.01.

All Securities of any one series shall be substantially identical except as to denomination and
except as may otherwise be provided in or pursuant to any such Board Resolution or in any
indentures supplemental hereto. If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action shall be certified
by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee at or prior
to the delivery of the Officers’ Certificate setting forth the terms of the series. Securities of
any particular series may be issued at various times, with different dates on which the principal
or any installment of principal is payable, with different rates of interest, if any, or different
methods by which rates of interest may be determined, with different dates on which such
interest may be payable and with different redemption dates. Notwithstanding Section 2.01(2) and
unless otherwise expressly provided with respect to a series of Securities, the aggregate principal
amount of a series of Securities may be increased and additional Securities of such series may be
issued up to the maximum aggregate principal amount authorized with respect to such series as
increased.

 

7

 

Section 2.02 Form of Securities and Trustee’s Certificate.

The Securities of any series and the Trustee’s certificate of authentication to be borne by
such Securities shall be substantially of the tenor and purport as set forth in one or more
indentures supplemental hereto or as provided in a Board Resolution and as set forth in an
Officers’ Certificate. The Securities may have such letters, numbers or other marks of
identification or designation and such legends or endorsements printed, lithographed or engraved
thereon as the Company may deem appropriate 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 stock exchange on which Securities of that
series may be listed, or to conform to usage.

Section 2.03 Denominations: Provisions for Payment.

The Securities shall be issuable as registered Securities and in the denominations of one
thousand U.S. dollars ($1,000) or any integral multiple thereof, subject to Section 2.01(10). The
Securities of a particular series shall bear interest payable on the dates and at the rates
specified or provided for with respect to that series. Except as contemplated by Section 2.01(17),
the principal of and the interest on the Securities of any series, as well as any premium thereon
in case of redemption thereof prior to maturity, shall be payable in the coin or currency of the
United States of America that at the time is legal tender for public and private debt, at the
office or agency of the Company maintained for that purpose; provided, however, that at the option
of the Company payment of interest may be made by check mailed to the address of the Person
entitled thereto as such address shall appear in the Security Register. Each Security shall be
dated the date of its authentication by the Trustee. Except as contemplated by Section 2.01(4),
interest on the Securities shall be computed on the basis of a 360-day year composed of twelve
30-day months. Except as contemplated by Section 2.01(5), the interest installment on any Security
that is payable, and is punctually paid or duly provided for, on any Interest Payment Date for
Securities of that series shall be paid to the Person in whose name said Security (or one or more
Predecessor Securities) is registered at the close of business on the regular record date for such
interest installment. In the event that any Security of a particular series or portion thereof is
called for redemption and the redemption date is subsequent to a regular record date with respect
to any Interest Payment Date and prior to such Interest Payment Date, interest on such Security
will be paid upon presentation and surrender of such Security as provided in Section 3.03. Any
interest on any Security that is payable, but is not punctually paid or duly provided for, on any
Interest Payment Date for Securities of the same series (herein called “Defaulted Interest”) shall
forthwith cease to be payable to the registered holder on the relevant regular record date by
virtue of having been such holder; and such Defaulted Interest shall be paid by the Company, at its
election, as provided in clause (1) or clause (2) below:

(1) The Company may make payment of any Defaulted Interest on Securities to the Persons in
whose names such Securities (or their respective Predecessor Securities) 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 such Security and the date of the proposed payment,
and at the same time the Company shall deposit with the Trustee an amount of money equal to the
aggregate amount proposed to be paid in respect of such Defaulted Interest or shall make
arrangements satisfactory to the Trustee for such deposit 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 Trustee shall fix a special
record date for the payment of such Defaulted Interest which shall not be more than 15 nor less
than 10 days prior to the date of the proposed payment and not less than 10 days after the receipt
by the Trustee of the notice of the proposed payment. The Trustee shall promptly notify the Company
of such special record date and, 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 Securityholder at his or her address as it appears in
the Security Register (as hereinafter defined), not less than 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 mailed as aforesaid, such Defaulted Interest shall be paid to the Persons in
whose names such Securities (or their respective Predecessor Securities) are registered on such
special record date.

 

8

 

(2) The Company may make payment of any Defaulted Interest on any Securities in any other
lawful manner not inconsistent with the requirements of any securities exchange on which such
Securities may be listed, and upon such notice as may be required by such exchange, 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. Unless otherwise set forth in a
Board Resolution or one or more indentures supplemental hereto establishing the terms of any series
of Securities pursuant to Section 2.01 hereof, the term “regular record date” as used in this
Section with respect to a series of Securities with respect to any Interest Payment Date for such
series shall mean either the fifteenth day of the month immediately preceding the month in which an
Interest Payment Date established for such series pursuant to Section 2.01 hereof shall occur, if
such Interest Payment Date is the first day of a month, or the last day of the month immediately
preceding the month in which an Interest Payment Date established for such series pursuant to
Section 2.01 hereof shall occur, if such Interest Payment Date is the fifteenth day of a month,
whether or not such date is a Business Day. Subject to the foregoing provisions of this Section,
each Security of a series delivered under this Indenture upon transfer of or in exchange for or in
lieu of any other Security of such series shall carry the rights to interest accrued and unpaid,
and to accrue, that were carried by such other Security.

Section 2.04 Execution and Authentication.

The Securities shall be signed on behalf of the Company by its President, or one of its Vice
Presidents, or its Treasurer, or one of its Assistant Treasurers, under its corporate seal attested
by its Secretary or one of its Assistant Secretaries; provided
however, that failure to affix a seal shall not affect the validity
of any Security. Signatures may be in the form of a manual or
facsimile signature. The Company may use the facsimile signature of any Person who shall have been
a President or Vice President thereof, or of any Person who shall have been the
Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary thereof,
notwithstanding the fact that at the time the Securities shall be authenticated and delivered or
disposed of such Person shall have ceased to be the President or a Vice President, or the
Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary, of the Company. The
seal of the Company may be in the form of a facsimile of such seal and may be impressed, affixed,
imprinted or otherwise reproduced on the Securities. The Securities may contain such notations,
legends or endorsements required by law, stock exchange rule or usage. A Security shall not be
valid until authenticated manually by an authorized signatory of the Trustee, or by an
Authenticating Agent. Such signature shall be conclusive evidence that the Security so
authenticated has been duly authenticated and delivered hereunder and that the holder is entitled
to the benefits of this Indenture. At any time and from time to time after the execution and
delivery of this Indenture, the Company may deliver Securities of any series executed by the
Company to the Trustee for authentication, together with a written order of the Company for the
authentication and delivery of such Securities, signed by its President or any Vice President and
its Secretary or any Assistant Secretary, and the Trustee in accordance with such written order
shall authenticate and deliver such Securities. In authenticating such Securities and accepting
the additional responsibilities under this Indenture in relation to such Securities, the Trustee
shall receive, and shall be fully protected in relying upon, an Opinion of Counsel stating that the
form and terms thereof have been established in conformity with the provisions of this Indenture
and that such Securities, when authenticated and delivered by the Trustee and issued by the Company
in the manner and subject to any conditions specified in such Opinion of Counsel, will constitute
valid and legally binding obligations of the Company enforceable in accordance with their terms,
subject to any Bankruptcy Law or other insolvency, fraudulent transfer, reorganization, moratorium
and similar laws of general applicability relating to or affecting creditors’ rights and to general
equity principles. The Trustee shall not be required to authenticate such Securities if the issue
of such Securities pursuant to this Indenture will affect the Trustee’s own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner that is not reasonably
acceptable to the Trustee.

 

9

 

Section 2.05 Registration of Transfer and Exchange.

(a) Securities of any series may be exchanged upon presentation thereof at the office or
agency of the Company designated for such purpose in Pittsburgh, Pennsylvania, for other Securities
of such series of authorized denominations, and for a like aggregate principal amount, upon payment
of a sum sufficient to cover any tax or other governmental charge in relation thereto, all as
provided in this Section. In respect of any Securities so surrendered for exchange, the Company
shall execute, the Trustee shall authenticate and such office or agency shall deliver in exchange
therefor the Security or Securities of the same series that the Securityholder making the exchange
shall be entitled to receive, bearing numbers not contemporaneously outstanding.

(b) The Company shall keep, or cause to be kept, at its office or agency designated for such
purpose in Pittsburgh, Pennsylvania, or such other location designated by the Company a register or
registers (herein referred to as the “Security Register”) in which, subject to such reasonable
regulations as it may prescribe, the Company shall register the Securities and the transfers of
Securities as in this Article provided and which at all reasonable times shall be open for
inspection by the Trustee. The registrar for the purpose of registering Securities and transfer of
Securities as herein provided shall be appointed as authorized by Board Resolution (the
“Security Registrar”). Upon surrender for transfer of any Security at the office or agency of
the Company designated for such purpose, the Company shall execute, the Trustee shall authenticate
and such office or agency shall deliver in the name of the transferee or transferees a new Security
or Securities of the same series as the Security presented for a like aggregate principal amount.
All Securities presented or surrendered for exchange or registration of transfer, as provided in
this Section, shall be accompanied (if so required by the Company or the Security Registrar) by a
written instrument or instruments of transfer, in form satisfactory to the Company or the Security
Registrar, duly executed by the registered holder or by such holder’s duly authorized attorney in
writing.

 

10

 

(c) No service charge shall be made for any exchange or registration of transfer of
Securities, or issue of new Securities in case of partial redemption of any series, but the Company
may require payment of a sum sufficient to cover any tax or other governmental charge in relation
thereto, other than exchanges pursuant to Section 2.06, Section 3.03(b) and Section 9.04 not
involving any transfer. The Company shall not be required (i) to issue, exchange or register the
transfer of any Securities during a period beginning at the opening of business 15 days before the
day of the mailing of a notice of redemption of less than all the Outstanding Securities of the
same series and ending at the close of business on the day of such mailing, nor (ii) to register
the transfer of or exchange any Securities of any series or portions thereof called for redemption.
The provisions of this Section 2.05 are, with respect to any Global Security, subject to Section
2.11 hereof.

Section 2.06 Temporary Securities.

Pending the preparation of definitive Securities of any series, the Company may execute, and
the Trustee shall authenticate and deliver, temporary Securities (printed, lithographed or
typewritten) of any authorized denomination. Such temporary Securities shall be substantially in
the form of the definitive Securities in lieu of which they are issued, but with such omissions,
insertions and variations as may be appropriate for temporary Securities, all as may be determined
by the Company. Every temporary Security of any series shall be executed by the Company and be
authenticated by the Trustee upon the same conditions and in substantially the same manner, and
with like effect, as the definitive Securities of such series. Without unnecessary delay the
Company will execute and will furnish definitive Securities of such series and thereupon any or all
temporary Securities of such series may be surrendered in exchange therefor (without charge to the
holders), at the office or agency of the Company designated for the purpose, and the Trustee shall
authenticate and such office or agency shall deliver in exchange for such temporary Securities an
equal aggregate principal amount of definitive Securities of such series, unless the Company
advises the Trustee to the effect that definitive Securities need not be executed and furnished
until further notice from the Company. Until so exchanged, the temporary Securities of such series
shall be entitled to the same benefits under this Indenture as definitive Securities of such series
authenticated and delivered hereunder.

 

11

 

Section 2.07 Mutilated, Destroyed, Lost or Stolen Securities.

In case any temporary or definitive Security shall become mutilated or be destroyed, lost or
stolen, the Company (subject to the next succeeding sentence) shall execute, and upon the Company’s
request the Trustee (subject as aforesaid) shall authenticate and deliver, a new
Security of the same series, bearing a number not contemporaneously outstanding, in exchange
and substitution for the mutilated Security, or in lieu of and in substitution for the Security so
destroyed, lost or stolen. In every case the applicant for a substituted Security shall furnish to
the Company and the Trustee such security or indemnity as may be required by them to save each of
them harmless, and, in every case of destruction, loss or theft, the applicant shall also furnish
to the Company and the Trustee evidence to their satisfaction of the destruction, loss or theft of
the applicant’s Security and of the ownership thereof. The Trustee may authenticate any such
substituted Security and deliver the same upon the written request or authorization of any officer
of the Company. Upon the issuance of any substituted Security, the Company may require the payment
of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation
thereto and any other expenses (including the fees and expenses of the Trustee) connected
therewith. In case any Security that has matured or is about to mature shall become mutilated or
be destroyed, lost or stolen, the Company may, instead of issuing a substitute Security, pay or
authorize the payment of the same (without surrender thereof except in the case of a mutilated
Security) if the applicant for such payment shall furnish to the Company and the Trustee such
security or indemnity as they may require to save them harmless, and, in case of destruction, loss
or theft, evidence to the satisfaction of the Company and the Trustee of the destruction, loss or
theft of such Security and of the ownership thereof. Every replacement Security issued pursuant to
the provisions of this Section shall constitute an additional contractual obligation of the Company
whether or not the mutilated, destroyed, lost or stolen Security shall be found at any time, or be
enforceable by anyone, and shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Securities of the same series duly issued hereunder. All
Securities shall be held and owned upon the express condition that the foregoing provisions are
exclusive with respect to the replacement or payment of mutilated, destroyed, lost or stolen
Securities, and shall preclude (to the extent lawful) 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 of negotiable instruments or other securities without their surrender.

Section 2.08 Cancellation.

All Securities surrendered for the purpose of payment, redemption, exchange or registration of
transfer shall, if surrendered to the Company or any paying agent, be delivered to the Trustee for
cancellation, or, if surrendered to the Trustee, shall be cancelled by it, and no Securities shall
be issued in lieu thereof except as expressly required or permitted by any of the provisions of
this Indenture. On written request of the Company at the time of such surrender, the Trustee shall
deliver to the Company canceled Securities held by the Trustee. In the absence of such request the
Trustee may dispose of canceled Securities in accordance with its standard procedures and deliver a
certificate of disposition to the Company. If the Company shall otherwise acquire any of the
Securities, however, such acquisition shall not operate as a redemption or satisfaction of the
indebtedness represented by such Securities unless and until the same are delivered to the Trustee
for cancellation.

 

12

 

Section 2.09 Benefits of Indenture.

Nothing in this Indenture or in the Securities, express or implied, shall give or be construed
to give to any Person, other than the parties hereto and the holders of the Securities
any legal or equitable right, remedy or claim under or in respect of this Indenture, or under
any covenant, condition or provision herein contained; all such covenants, conditions and
provisions being for the sole benefit of the parties hereto and of the holders of the Securities.

Section 2.10 Authenticating Agent.

So long as any of the Securities of any series remain Outstanding there may be an
Authenticating Agent for any or all such series of Securities which the Trustee shall have the
right to appoint. Said Authenticating Agent shall be authorized to act on behalf of the Trustee to
authenticate Securities of such series issued upon exchange, transfer or partial redemption
thereof, and Securities so authenticated shall be entitled to the benefits of this Indenture and
shall be valid and obligatory for all purposes as if authenticated by the Trustee hereunder. All
references in this Indenture to the authentication of Securities by the Trustee shall be deemed to
include authentication by an Authenticating Agent for such series. Each Authenticating Agent shall
be acceptable to the Company and shall be a corporation that has a combined capital and surplus, as
most recently reported or determined by it, sufficient under the laws of any jurisdiction under
which it is organized or in which it is doing business to conduct a trust business, and that is
otherwise authorized under such laws to conduct such business and is subject to supervision or
examination by Federal or State authorities. If at any time any Authenticating Agent shall cease
to be eligible in accordance with these provisions, it shall resign immediately. 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 (and upon request by the Company shall) terminate
the agency of any Authenticating Agent by giving written notice of termination to such
Authenticating Agent and to the Company. Upon resignation, termination or cessation of eligibility
of any Authenticating Agent, the Trustee may appoint an eligible successor Authenticating Agent
acceptable to the Company. Any successor Authenticating Agent, upon acceptance of its appointment
hereunder, shall become vested with all the rights, powers and duties of its predecessor hereunder
as if originally named as an Authenticating Agent pursuant hereto.

Any corporation into which an Authenticating Agent may be merged or converted or with which it
may be consolidated, or any corporation resulting from any merger, conversion or consolidation to
which such Authenticating Agent shall be a party, or any corporation succeeding to the corporate
agency or corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided that such corporation shall be otherwise eligible under this
Section, without the execution or filing of any paper or any further act on the part of the Trustee
or the Authenticating Agent.

Section 2.11 Global Securities.

(a) If the Company shall establish pursuant to Section 2.01 that the Securities of a
particular series are to be issued as a Global Security, then the Company shall execute and the
Trustee shall, in accordance with Section 2.04, authenticate and deliver, a Global Security that

	 	(1)	 	shall represent, and shall be denominated in an amount equal to
the aggregate principal amount of, all or a portion of the Outstanding
Securities of such series,

	 	(2)	 	shall be registered in the name of the Depositary or its
nominee,

 

13

 

	 	(3)	 	shall be delivered by the Trustee to the Depositary or pursuant
to the Depositary’s instruction and

	 	(4)	 	shall bear a legend substantially to the following effect:
“Except as otherwise provided in Section 2.11 of the Indenture, this Security
may be transferred, in whole but not in part, only to the Depositary, another
nominee of the Depositary or to a successor Depositary or to a nominee of such
successor Depositary.”

(b) Notwithstanding the provisions of Section 2.05, the Global Security of a series may be
transferred, in whole but not in part and in the manner provided in Section 2.05, only to the
Depositary for such series, another nominee of the Depositary for such series, or to a successor
Depositary for such series selected or approved by the Company or to a nominee of such successor
Depositary.

(c) If at any time the Depositary for a series of the Securities notifies the Company that it
is unwilling or unable to continue as Depositary for such series or if at any time the Depositary
for such series shall no longer be registered or in good standing under the Exchange Act, or other
applicable statute or regulation, and a successor Depositary for such series is not appointed by
the Company within 90 days after the Company receives such notice or becomes aware of such
condition, as the case may be, this Section 2.11 shall no longer be applicable to the Securities of
such series and the Company will execute, and subject to Section 2.05, the Trustee will
authenticate and deliver the Securities of such series in definitive registered form without
coupons, in authorized denominations, and in an aggregate principal amount equal to the principal
amount of the Global Security of such series in exchange for such Global Security. In addition,
the Company may at any time determine that the Securities of any series shall no longer be
represented by a Global Security and that the provisions of this Section 2.11 shall no longer apply
to the Securities of such series. In such event the Company will execute and subject to Section
2.05, the Trustee, upon receipt of an Officers’ Certificate evidencing such determination by the
Company, will authenticate and deliver the Securities of such series in definitive registered form
without coupons, in authorized denominations, and in an aggregate principal amount equal to the
principal amount of the Global Security of such series in exchange for such Global Security. Upon
the exchange of the Global Security for such Securities in definitive registered form without
coupons, in authorized denominations, the Global Security shall be canceled by the Trustee. Such
Securities in definitive registered form issued in exchange for the Global Security pursuant to
this Section 2.11(c) shall be registered in such names and in such authorized denominations as the
Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall
instruct the Trustee. The Trustee shall deliver such Securities to the Depositary for delivery to
the Persons in whose names such Securities are so registered.

 

14

 

ARTICLE III

REDEMPTION OF SECURITIES AND SINKING FUND PROVISIONS

Section 3.01 Redemption.

The Company may redeem the Securities of any series issued hereunder on and after the dates
and in accordance with the terms established for such series pursuant to Section 2.01 hereof.

Section 3.02 Notice of Redemption.

(a) In case the Company shall desire to exercise such right to redeem all or, as the case may
be, a portion of the Securities of any series in accordance with the right reserved so to do, the
Company shall, or shall cause the Trustee to, give notice of such redemption to holders of the
Securities of such series to be redeemed by mailing, first class postage prepaid, a notice of such
redemption not less than 30 days and not more than 90 days before the date fixed for redemption of
that series to such holders at their last addresses as they shall appear upon the Security Register
unless a shorter period is specified in the Securities to be redeemed. Any notice that is mailed
in the manner herein provided shall be conclusively presumed to have been duly given, whether or
not the registered holder receives the notice. In any case, failure duly to give such notice to
the holder of any Security of any series designated for redemption in whole or in part, or any
defect in the notice, shall not affect the validity of the proceedings for the redemption of any
other Securities of such series or any other series. In the case of any redemption of Securities
prior to the expiration of any restriction on such redemption provided in the terms of such
Securities or elsewhere in this Indenture, the Company shall furnish the Trustee with an Officers’
Certificate evidencing compliance with any such restriction. Each such notice of redemption shall
specify the date fixed for redemption and the redemption price at which Securities of that series
are to be redeemed, and shall state that payment of the redemption price of such Securities to be
redeemed will be made at the office or agency of the Company in Pittsburgh, Pennsylvania, upon
presentation and surrender of such Securities, that interest accrued to the date fixed for
redemption will be paid as specified in said notice, that from and after said date interest will
cease to accrue, that the redemption is for a sinking fund, if such is the case, and the CUSIP
number of the Securities and state that no representation is made as to the correctness or accuracy
of the CUSIP number, if any, listed in the notice or printed on the Securities. If less than all
the Securities of a series are to be redeemed, the notice to the holders of Securities of that
series to be redeemed in whole or in part shall specify the particular Securities to be so
redeemed. In case any Security is to be redeemed in part only, the notice that relates to such
Security shall state the portion of the principal amount thereof to be redeemed, and shall state
that on and after the redemption date, upon surrender of such Security, a new Security or
Securities of such series in principal amount equal to the unredeemed portion thereof will be
issued.

 

15

 

(b) If less than all the Securities of a series are to be redeemed, the Company shall give the
Trustee at least 45 days’ notice (unless a shorter period is satisfactory to the Trustee) in
advance of the date fixed for redemption as to the aggregate principal amount of Securities of the
series to be redeemed, and thereupon the Trustee shall select in a manner that complies with the
requirements, if any, of any applicable stock exchange or which the Securities are listed and that
the Trustee deems appropriate and fair in its discretion and that may provide for the
selection of a portion or portions (equal to one thousand U.S. dollars ($1,000) or any integral
multiple thereof) of the principal amount of such Securities of a denomination larger than $1,000,
the Securities to be redeemed and shall thereafter promptly notify the Company in writing of the
numbers of the Securities to be redeemed, in whole or in part. The Company may, if and whenever it
shall so elect, by delivery of instructions signed on its behalf by its President or any Vice
President, instruct the Trustee or any paying agent to call all or any part of the Securities of a
particular series for redemption and to give notice of redemption in the manner set forth in this
Section, such notice to be in the name of the Company or its own name as the Trustee or such paying
agent as it may deem advisable. In any case in which notice of redemption is to be given by the
Trustee or any such paying agent, the Company shall deliver or cause to be delivered to, or permit
to remain with, the Trustee or such paying agent, as the case may be, such Security Register,
transfer books or other records, or suitable copies or extracts therefrom, sufficient to enable the
Trustee or such paying agent to give any notice by mail that may be required under the provisions
of this Section.

Section 3.03 Payment Upon Redemption.

(a) If the giving of notice of redemption shall have been completed as above provided, the
Securities or portions of Securities of the series to be redeemed specified in such notice shall
become due and payable on the date and at the place stated in such notice at the applicable
redemption price, together with interest accrued to the date fixed for redemption and interest on
such Securities or portions of Securities shall cease to accrue on and after the date fixed for
redemption, unless the Company shall default in the payment of such redemption price and accrued
interest with respect to any such Security or portion thereof. On presentation and surrender of
such Securities on or after the date fixed for redemption at the place of payment specified in the
notice, said Securities shall be paid and redeemed at the applicable redemption price for such
series, together with interest accrued thereon to the date fixed for redemption (but if the date
fixed for redemption is an Interest Payment Date, the interest installment payable on such date
shall be payable to the registered holder at the close of business on the applicable record date
pursuant to Section 2.03).

(b) Upon presentation of any Security of such series that is to be redeemed in part only, the
Company shall execute and the Trustee shall authenticate and the office or agency where the
Security is presented shall deliver to the holder thereof, at the expense of the Company, a new
Security of the same series of authorized denominations in principal amount equal to the unredeemed
portion of the Security so presented.

Section 3.04 Sinking Fund.

The provisions of Sections 3.04, 3.05 and 3.06 shall be applicable to any sinking fund for the
retirement of Securities of a series, except as otherwise specified as contemplated by Section 2.01
for Securities of such series. The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a “mandatory sinking fund payment,” and
any payment in excess of such minimum amount provided for by the terms of Securities of any series
is herein referred to as an “optional sinking fund payment”. If provided for by the terms of
Securities of any series, the cash amount of any sinking fund payment may be
subject to reduction as provided in Section 3.05. Each sinking fund payment shall be applied
to the redemption of Securities of any series as provided for by the terms of Securities of such
series.

 

16

 

Section 3.05 Satisfaction of Sinking Fund Payments with Securities.

The Company,

	 	(1)	 	may deliver Outstanding Securities of a series (other than any Securities
previously called for redemption) and

	 	(2)	 	may apply as a credit Securities of a series that have been redeemed either at
the election of the Company pursuant to the terms of such Securities or through the
application of permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund payment
with respect to the Securities of such series required to be made pursuant to the terms
of such Securities as provided for by the terms of such series, provided that such
Securities have not been previously so credited. Such Securities shall be received and
credited for such purpose by the Trustee at the redemption price specified in such
Securities for redemption through operation of the sinking fund and the amount of such
sinking fund payment shall be reduced accordingly.

Section 3.06 Redemption of Securities for Sinking Fund.

Not less than 45 days (unless a shorter period is satisfactory to the Trustee) prior to each
sinking fund payment date for any series of Securities, the Company will deliver to the Trustee an
Officers’ Certificate specifying the amount of the next ensuing sinking fund payment for that
series pursuant to the terms of the series, the portion thereof, if any, that is to be satisfied by
delivering and crediting Securities of that series pursuant to Section 3.05 and the basis for such
credit and will, together with such Officers’ Certificate, deliver to the Trustee any Securities to
be so delivered. Not less than 30 days before each such sinking fund payment date the Trustee
shall select the Securities to be redeemed upon such sinking fund payment date in the manner
specified in Section 3.02 and cause notice of the redemption thereof to be given in the name of and
at the expense of the Company in the manner provided in Section 3.02. Such notice having been duly
given, the redemption of such Securities shall be made upon the terms and in the manner stated in
Section 3.03.

ARTICLE IV

COVENANTS

Section 4.01 Payment of Principal, Premium and Interest.

The Company will duly and punctually pay or cause to be paid the principal of (and premium, if
any) and interest on the Securities of each series at the time and place and in the manner provided
herein and established with respect to such Securities.

 

17

 

Section 4.02 Maintenance of Office or Agency.

So long as any series of the Securities remain Outstanding, the Company agrees to maintain an
office or agency in the Borough of Manhattan, the City and State of New York, with respect to each
such series and at such other location or locations as may be designated as provided in this
Section 4.02, where (i) Securities of that series may be presented for payment, (ii) Securities of
that series may be presented as herein above authorized for registration of transfer and exchange,
and (iii) notices and demands to or upon the Company in respect of the Securities of that series
and this Indenture may be given or served, such designation to continue with respect to such office
or agency until the Company shall, by written notice signed by its President or a Vice President
and delivered to the Trustee, designate some other office or agency in the Borough of Manhattan,
the City and State of New York for such purposes or any of them. 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, notices and demands may be made or served at the Corporate
Trust Office of the Trustee, and the Company hereby appoints the Trustee as its agent to receive
all such presentations, notices and demands.

The Company may also from time to time designate one or more other offices or agencies where
the Securities of one or more series may be presented or surrendered for any or all such purposes
and may from time to time rescind such designations; provided, however, that no such designation or
rescission shall in any manner relieve the Company of its obligation to maintain an office or
agency in the Borough of Manhattan, the City and State of New York for Securities of any series for
such purposes. The Company will give prompt written notice to the Trustee of any such designation
or rescission and of any change in the location of any such other office or agency.

Section 4.03 Paying Agents.

(a) If the Company shall appoint one or more paying agents for all or any series of the
Securities, other than the Trustee, the Company will cause each 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:

	 	(1)	 	that it will hold all sums held by it as such agent for the
payment of the principal of (and premium, if any) or interest on the Securities
of that series (whether such sums have been paid to it by the Company or by any
other obligor of such Securities) in trust for the benefit of the Persons
entitled thereto;

	 	(2)	 	that it will give the Trustee notice of any failure by the
Company (or by any other obligor of such Securities) to make any payment of the
principal of (and premium, if any) or interest on the Securities of that series
when the same shall be due and payable;

 

18

 

	 	(3)	 	that it will, at any time during the continuance of any failure
referred to in the preceding paragraph (a)(2) above, upon the written request
of the
Trustee, forthwith pay to the Trustee all sums so held in trust by such
paying agent; and

	 	(4)	 	that it will perform all other duties of paying agent as set
forth in this Indenture.

(b) If the Company shall act as its own paying agent with respect to any series of the
Securities, it will on or before each due date of the principal of (and premium, if any) or
interest on Securities of that series, set aside, segregate and hold in trust for the benefit of
the Persons entitled thereto a sum sufficient to pay such principal (and premium, if any) or
interest so becoming due on Securities of that series until such sums shall be paid to such Persons
or otherwise disposed of as herein provided and will promptly notify the Trustee of such action, or
any failure (by it or any other obligor on such Securities) to take such action. Whenever the
Company shall have one or more paying agents for any series of Securities, it will, prior to each
due date of the principal of (and premium, if any) or interest on any Securities of that series,
deposit with the paying agent a sum sufficient to pay the principal (and premium, if any) or
interest so becoming due, such sum to be held in trust for the benefit of the Persons entitled to
such principal, premium or interest, and (unless such paying agent is the Trustee) the Company will
promptly notify the Trustee of this action or failure so to act.

(c) Notwithstanding anything in this Section to the contrary,

	 	(1)	 	the agreement to hold sums in trust as provided in this Section
is subject to the provisions of Section 11.05, and

	 	(2)	 	the Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
direct any paying agent to pay, to the Trustee all sums held in trust by the
Company or such paying agent, such sums to be held by the Trustee upon the same
terms and conditions as those upon which such sums were held by the Company or
such paying agent; and, upon such payment by any paying agent to the Trustee,
such paying agent shall be released from all further liability with respect to
such money.

Section 4.04 Appointment to Fill Vacancy in Office of Trustee.

The Company, whenever necessary to avoid or fill a vacancy in the office of Trustee, will
appoint, in the manner provided in Section 7.11, a Trustee, so that there shall at all times be a
Trustee hereunder.

Section 4.05 Compliance with Consolidation Provisions.

The Company will not, while any of the Securities remain Outstanding, consolidate with or
merge into any other Person, in either case where the Company is not the survivor of such
transaction, or sell, convey, transfer or otherwise dispose of its property as an entirety or
substantially as an entirety to any other Person unless the provisions of Article X hereof are
complied with.

 

19

 

Section 4.06 Statement by Officers as to Default.

The Company will deliver to the Trustee, within 90 days after the end of each fiscal year of
the Company, a Certificate, stating whether or not to the best knowledge of the signer thereof the
Company is in default in the performance and observance of any of the terms, provisions and
conditions of this Indenture (without regard to any period of grace or requirement of notice
provided hereunder) and, if the Company shall be in default, specifying all such defaults and the
nature and status thereof of which such signer may have knowledge.

ARTICLE V

SECURITYHOLDERS’ LISTS AND REPORTS BY THE COMPANY AND THE TRUSTEE

Section 5.01 Company to Furnish Trustee Names and Addresses of Securityholders.

The Company will furnish or cause to be furnished to the Trustee

	 	(1)	 	not more than 15 days after each regular record date (as defined in Section
2.03) a list, in such form as the Trustee may reasonably require, of the names and
addresses of the holders of each series of Securities as of such regular record date,
provided that the Company shall not be obligated to furnish or cause to furnish such
list at any time that the list shall not differ in any respect from the most recent
list furnished to the Trustee by the Company and

	 	(2)	 	at such other times as the Trustee may request in writing within 30 days after
the receipt by the Company of any such request, a list of similar form and content as
of a date not more than 15 days prior to the time such list is furnished;

provided, however, that, in either case, no such list need be furnished for any series for which
the Trustee shall be the Security Registrar.

Section 5.02 Preservation Of Information; Communications With Securityholders.

(a) The Trustee shall preserve, in as current a form as is reasonably practicable, all
information as to the names and addresses of the holders of Securities contained in the most recent
list furnished to it as provided in Section 5.01 and as to the names and addresses of holders of
Securities received by the Trustee in its capacity as Security Registrar (if acting in such
capacity).

(b) The Trustee may destroy any list furnished to it as provided in Section 5.01 upon receipt
of a new list so furnished.

(c) Securityholders may communicate as provided in Section 312(b) of the Trust Indenture Act
with other Securityholders with respect to their rights under this Indenture or under the
Securities.

 

20

 

Section 5.03 Reports by the Company.

(a) The Company covenants and agrees to file with the Trustee, within 15 days after the
Company files the same with the Commission, copies of the annual reports and of the information,
documents and other reports (or copies of such portions of any of the foregoing as the Commission
may from time to time by rules and regulations prescribe) that the Company may be required to file
with the Commission pursuant to Section 13 or Section 15(d) of the Exchange Act; or, if the Company
is not required to file information, documents or reports pursuant to either of such sections, then
to file with the Trustee and the Commission, in accordance with the rules and regulations
prescribed from time to time by the Commission, such of the supplementary and periodic information,
documents and reports that may be required pursuant to Section 13 of the Exchange Act, in respect
of a security listed and registered on a national securities exchange as may be prescribed from
time to time in such rules and regulations.

(b) The Company covenants and agrees to file with the Trustee and the Commission, in
accordance with the rules and regulations prescribed from to time by the Commission, such
additional information, documents and reports with respect to compliance by the Company with the
conditions and covenants provided for in this Indenture as may be required from time to time by
such rules and regulations.

(c) The Company covenants and agrees to transmit by mail, first class postage prepaid, or
reputable overnight delivery service or electronic method that provides for evidence of receipt, to
the Securityholders, as their names and addresses appear upon the Security Register, within 30 days
after the filing thereof with the Trustee, such summaries of any information, documents and reports
required to be filed by the Company pursuant to subsections (a) and (b) of this Section as may be
required by rules and regulations prescribed from time to time by the Commission.

Section 5.04 Reports by the Trustee.

(a) Within 60 days after each May 15, beginning with the May 15 following the date of this
Indenture, in each year in which any of the Securities are Outstanding, the Trustee shall transmit
by mail, first class postage prepaid, to the Securityholders, as their names and addresses appear
upon the Security Register, a brief report dated as of such May 15, if and to the extent required
under Section 313(a) of the Trust Indenture Act.

(b) The Trustee shall comply with Section 313(b) and 313(c) of the Trust Indenture Act.

(c) A copy of each such report shall, at the time of such transmission to Securityholders, be
filed by the Trustee with the Company, with each stock exchange upon which any Securities are
listed (if so listed) and also with the Commission. The Company agrees to notify the Trustee when
any Securities become listed or delisted on any stock exchange.

 

21

 

ARTICLE VI

REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS ON EVENT OF DEFAULT

Section 6.01 Events of Default.

(a) Whenever used herein with respect to Securities of a particular series, “Event of Default”
means any one or more of the following events that has occurred and is 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):

	 	(1)	 	the Company defaults in the payment of any installment of
interest upon any of the Securities of that series, as and when the same shall
become due and payable, and continuance of such default for a period of 90
days; provided, however, that a valid extension of an interest payment period
by the Company in accordance with the terms of any indenture supplemental
hereto shall not constitute a default in the payment of interest for this
purpose;

	 	(2)	 	the Company defaults in the payment of the principal of (or
premium, if any, on) any of the Securities of that series as and when the same
shall become due and payable whether at maturity, upon redemption, by
declaration or otherwise, or in any payment required by any sinking or
analogous fund established with respect to that series; provided, however, that
a valid extension of the maturity of such Securities in accordance with the
terms of any indenture supplemental hereto shall not constitute a default in
the payment of principal or premium, if any;

	 	(3)	 	the Company fails to observe or perform any other of its
covenants or agreements with respect to that series contained in this Indenture
or otherwise established with respect to that series of Securities pursuant to
Section 2.01 hereof (other than a covenant or agreement that has been expressly
included in this Indenture solely for the benefit of one or more series of
Securities other than such series) for a period of 90 days after the date on
which written notice of such failure, requiring the same to be remedied and
stating that such notice is a “Notice of Default” hereunder, shall have been
given to the Company by the Trustee, by registered or certified mail, or to the
Company and the Trustee by the holders of at least 25% in principal amount of
the Securities of that series at the time Outstanding;

	 	(4)	 	the Company pursuant to or within the meaning of any Bankruptcy
Law

	 	(i)	 	commences a voluntary case,

	 	(ii)	 	consents to the entry of an order for relief
against it in an involuntary case,

 

22

 

	 	(iii)	 	consents to the appointment of a Custodian of
it or for all or substantially all of its property or

	 	(iv)	 	makes a general assignment for the benefit of
its creditors; or

	 	(5)	 	a court of competent jurisdiction enters an order under any
Bankruptcy Law that

	 	(i)	 	is for relief against the Company in an
involuntary case,

	 	(ii)	 	appoints a Custodian of the Company or for all
or substantially all of its property, or

	 	(iii)	 	orders the liquidation of the Company, and the
order remains unstayed and in effect for 90 days.

(b) In each and every such case, unless the principal of all the Securities of that series
shall have already become due and payable, either the Trustee or the holders of not less than 25%
in aggregate principal amount of the Securities of that series then Outstanding hereunder, by
notice in writing to the Company (and to the Trustee if given by such Securityholders), may declare
the principal of all the Securities of that series to be due and payable immediately, and upon any
such declaration the same shall become and shall be immediately due and payable.

(c) At any time after the principal of the Securities of that series shall have been so
declared due and payable, and before any judgment or decree for the payment of the moneys due shall
have been obtained or entered as hereinafter provided, the holders of a majority in aggregate
principal amount of the Securities of that series then Outstanding hereunder, by written notice to
the Company and the Trustee, may rescind and annul such declaration and its consequences if:

	 	(1)	 	the Company has paid or deposited with the Trustee a sum
sufficient to pay all matured installments of interest upon all the Securities
of that series and the principal of (and premium, if any, on) any and all
Securities of that series that shall have become due otherwise than by
acceleration (with interest upon such principal and premium, if any, and, to
the extent that such payment is enforceable under applicable law, upon overdue
installments of interest, at the rate per annum expressed in the Securities of
that series to the date of such payment or deposit) and the amount payable to
the Trustee under Section 7.07, and

	 	(2)	 	any and all Events of Default under the Indenture with respect
to such series, other than the nonpayment of principal on Securities of that
series that shall not have become due by their terms, shall have been remedied
or waived as provided in Section 6.06. No such rescission and annulment shall
extend to or shall affect any subsequent default or impair any right consequent
thereon.

 

23

 

(d) In case the Trustee shall have proceeded to enforce any right with respect to Securities
of that series under this Indenture and such proceedings shall have been discontinued or abandoned
because of such rescission or annulment or for any other reason or shall have been determined
adversely to the Trustee, then and in every such case, subject to any determination in such
proceedings, the Company, and the Trustee shall be restored respectively to their former positions
and rights hereunder, and all rights, remedies and powers of the Company and the Trustee shall
continue as though no such proceedings had been taken.

Section 6.02 Collection of Indebtedness and Suits for Enforcement by Trustee.

(a) The Company covenants that

	 	(1)	 	in case it shall default in the payment of any installment of
interest on any of the Securities of a series, as and when the same shall have
become due and payable, and such default shall have continued for a period of
90 days, or

	 	(2)	 	in case it shall default in the payment of the principal of (or
premium, if any, on) any of the Securities of a series when the same shall have
become due and payable, whether upon maturity of the Securities of a series or
upon redemption or upon declaration, pursuant to any sinking or analogous fund
established with respect to that series or otherwise,

then, upon demand of the Trustee, the Company will pay to the Trustee, for the benefit of the
holders of the Securities of that series, the whole amount that then shall have been become due and
payable on all such Securities for principal (and premium, if any) or interest, or both, as the
case may be, with interest upon the overdue principal (and premium, if any) and (to the extent that
payment of such interest is enforceable under applicable law) upon overdue installments of interest
at the rate per annum expressed in the Securities of that series; and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of collection, and the amount
payable to the Trustee under Section 7.07.

(b) If the Company shall fail to pay such amounts forthwith upon such demand, the Trustee, in
its own name and as trustee of an express trust, shall be entitled and empowered to institute any
action or proceedings at law or in equity for the collection of the sums so due and unpaid, and may
prosecute any such action or proceeding to judgment or final decree, and may enforce any such
judgment or final decree against the Company or other obligor upon the Securities of that series
and collect the moneys adjudged or decreed to be payable in the manner provided by law out of the
property of the Company or other obligor upon the Securities of that series, wherever situated.

(c) In case of any receivership, insolvency, liquidation, bankruptcy, reorganization,
readjustment, arrangement, composition or judicial proceedings affecting the Company, or its
creditors or property, the Trustee shall have power to intervene in such proceedings and take any
action therein that may be permitted by the court and shall (except as may be otherwise provided by
law) be entitled to file such proofs of claim and other papers and documents as may be necessary or
advisable in order to have the claims of the Trustee and of the holders of Securities
of such series allowed for the entire amount due and payable by the Company under the
Indenture at the date of institution of such proceedings and for any additional amount that may
become due and payable by the Company after such date, and to collect and receive any moneys or
other property payable or deliverable on any such claim, and to distribute the same after the
deduction of the amount payable to the Trustee under Section 7.07; and any receiver, assignee or
trustee in bankruptcy or reorganization is hereby authorized by each of the holders of Securities
of such series to make such payments to the Trustee, and, in the event that the Trustee shall
consent to the making of such payments directly to such Securityholders, to pay to the Trustee any
amount due it under Section 7.07.

 

24

 

(d) All rights of action and of asserting claims under this Indenture, or under any of the
terms established with respect to Securities of that series, may be enforced by the Trustee without
the possession of any of such Securities, 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 payment to the Trustee of any amounts due under Section 7.07, be for the ratable
benefit of the holders of the Securities of such series. In case of an Event of Default hereunder,
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 the Trustee shall deem most effectual to
protect and enforce any of such rights, either at law or in equity or in bankruptcy or otherwise,
whether for the specific enforcement of any covenant or agreement contained in the 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. Nothing contained herein shall
be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any
Securityholder any plan of reorganization, arrangement, adjustment or composition affecting the
Securities of that series or the rights of any holder thereof or to authorize the Trustee to vote
in respect of the claim of any Securityholder in any such proceeding.

Section 6.03 Application of Moneys Collected.

Any moneys collected by the Trustee pursuant to this Article with respect to a particular
series of Securities shall be applied in the following order, at the date or dates fixed by the
Trustee and, in case of the distribution of such moneys on account of principal (or premium, if
any) or interest, upon presentation of the Securities of that series, and notation thereon of the
payment, if only partially paid, and upon surrender thereof if fully paid:

FIRST: To the payment of costs and expenses of collection and of all amounts payable to the
Trustee under Section 7.07;

SECOND: To the payment of the amounts then due and unpaid upon Securities of such series for
principal (and premium, if any) and interest, in respect of which or for the benefit of which such
money has been collected, ratably, without preference or priority of any kind, according to the
amounts due and payable on such Securities for principal (and premium, if any) and interest,
respectively.

THIRD: To the Company.

 

25

 

Section 6.04 Limitation on Suits.

No holder of any Security of any series shall have any right by virtue 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 or trustee, or for any
other remedy hereunder, unless

	 	(1)	 	such holder previously shall have given to the Trustee written notice of an
Event of Default and of the continuance thereof with respect to the Securities of such
series specifying such Event of Default, as hereinbefore provided;

	 	(2)	 	the holders of not less than 25% in aggregate principal amount of the
Securities of such series then Outstanding shall have made written request upon the
Trustee to institute such action, suit or proceeding in its own name as trustee
hereunder;

	 	(3)	 	such holder or holders shall have offered to the Trustee such reasonable
indemnity as it may require against the costs, expenses and liabilities to be incurred
therein or thereby; and

	 	(4)	 	the Trustee for 60 days after its receipt of such notice, request and offer of
indemnity, shall have failed to institute any such action, suit or proceeding and

	 	(5)	 	during such 60 day period, the holders of a majority in principal amount of the
Securities of that series do not give the Trustee a direction inconsistent with the
request. Notwithstanding anything contained herein to the contrary, the right of any
holder of any Security to receive payment of the principal of (and premium, if any) and
interest on such Security, as therein provided, on the respective due dates expressed
in such Security (or in the case of redemption, on the redemption date), or to
institute suit for the enforcement of any such payment on or after such respective
dates or redemption date, shall not be impaired or affected without the consent of such
holder and by accepting a Security hereunder it is expressly understood, intended and
covenanted by the taker and holder of every Security of such series with every other
such taker and holder and the Trustee, that no one or more holders of Securities of
such series shall have any right in any manner whatsoever by virtue or by availing of
any provision of this Indenture to affect, disturb or prejudice the rights of the
holders of any other of such Securities, 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 of Securities of such series. For the protection and enforcement of the
provisions of this Section, each and every Securityholder and the Trustee shall be
entitled to such relief as can be given either at law or in equity.

 

26

 

Section 6.05 Rights and Remedies Cumulative; Delay or Omission Not Waiver.

(a) Except as otherwise provided in Section 2.07, all powers and remedies given by this
Article to the Trustee or to the Securityholders shall, to the extent permitted by law, be deemed
cumulative and not exclusive of any other powers and remedies available to the Trustee
or the holders of the Securities, by judicial proceedings or otherwise, to enforce the
performance or observance of the covenants and agreements contained in this Indenture or otherwise
established with respect to such Securities.

(b) No delay or omission of the Trustee or of any holder of any of the Securities to exercise
any right or power accruing upon any Event of Default occurring and continuing as aforesaid shall
impair any such right or power, or shall be construed to be a waiver of any such default or on
acquiescence therein; and, subject to the provisions of Section 6.04, every power and remedy given
by this Article or by law to the Trustee or the Securityholders may be exercised from time to time,
and as often as shall be deemed expedient, by the Trustee or by the Securityholders.

Section 6.06 Control by Securityholders.

The holders of a majority in aggregate principal amount of the Securities of any series at the
time Outstanding, determined in accordance with Section 8.01, 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 such series; provided,
however, that such direction shall not be in conflict with any rule of law or with this Indenture
or be unduly prejudicial to the rights of holders of Securities of any other series at the time
Outstanding determined in accordance with Section 8.01. Subject to the provisions of Section 7.01,
the Trustee shall have the right to decline to follow any such direction if the Trustee in good
faith shall, by a Responsible Officer or Officers of the Trustee, determine that the proceeding so
directed would involve the Trustee in personal liability. The holders of a majority in aggregate
principal amount of the Securities of any series at the time Outstanding affected thereby,
determined in accordance with Section 8.01, may on behalf of the holders of all of the Securities
of such series waive any past default in the performance of any of the covenants contained herein
or established pursuant to Section 2.01 with respect to such series and its consequences, except a
default in the payment of the principal of (or premium, if any) or interest on, any of the
Securities of that series as and when the same shall become due by the terms of such Securities
otherwise than by acceleration (unless such default has been cured and a sum sufficient to pay all
matured installments of interest and principal and any premium has been deposited with the Trustee
(in accordance with Section 6.01(c)) or in respect of a covenant or provision hereof which under
Article IX cannot be modified or amended without the consent of the holder of each Outstanding
Security affected. Upon any such waiver, the default covered thereby shall be deemed to be cured
for all purposes of this Indenture and the Company, the Trustee and the holders of the Securities
of such series shall be restored to their former positions and rights hereunder, respectively; but
no such waiver shall extend to any subsequent or other default or impair any right consequent
thereon.

Section 6.07 Undertaking to Pay Costs.

All parties to this Indenture agree, and each holder of any Securities by such holder’s
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; but the provisions of this Section shall not apply to any suit instituted by the
Trustee, to any suit instituted by any Securityholder, or group of Securityholders, holding more
than 25% in aggregate principal amount of the Outstanding Securities of any series, or to any suit
instituted by any Securityholder for the enforcement of the payment of the principal of (or
premium, if any) or interest on any Security of such series, on or after the respective due dates
expressed in such Security or established pursuant to this Indenture.

 

27

 

ARTICLE VII

CONCERNING THE TRUSTEE

Section 7.01 Certain Duties and Responsibilities of Trustee.

(a) The Trustee, prior to the occurrence of an Event of Default with respect to the Securities
of a series and after the curing of all Events of Default with respect to the Securities of that
series that may have occurred, shall undertake to perform with respect to the Securities of such
series such duties and only such duties as are specifically set forth in this Indenture, and no
implied covenants shall be read into this Indenture against the Trustee. In case an Event of
Default with respect to the Securities of a series has occurred (that has not been cured or
waived), the Trustee shall exercise with respect to Securities of that series such of the rights
and powers vested in it by this Indenture, and use the same degree of care and skill in their
exercise, as a prudent man would exercise or use under the circumstances in the conduct of his own
affairs.

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

	 	(1)	 	prior to the occurrence of an Event of Default with respect to
the Securities of a series and after the curing or waiving of all such Events
of Default with respect to that series that may have occurred: the duties and
obligations of the Trustee shall with respect to the Securities of such series
be determined solely by the express provisions of this Indenture, and the
Trustee shall not be liable with respect to the Securities of such series
except for the performance of such duties and obligations as are specifically
set forth in this Indenture, and no implied covenants or obligations shall be
read into this Indenture against the Trustee; and in the absence of bad faith
on the part of the Trustee, the Trustee may with respect to the Securities of
such series conclusively rely, as to the truth of the statements and the
correctness of the opinions expressed therein, upon any certificates or
opinions furnished to the Trustee and conforming to the requirements of this
Indenture; but in the case of any such certificates or opinions that by any
provision hereof are specifically required to be furnished to the Trustee, the
Trustee shall be under a duty to examine the same to determine whether or not
they conform to the requirement of this Indenture;

 

28

 

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

	 	(3)	 	the Trustee shall not be liable with respect to any action
taken or omitted to be taken by it in good faith in accordance with the
direction of the holders of not less than a majority in principal amount of the
Securities of any series at the time Outstanding relating to the time, method
and place of conducting any proceeding for any remedy available to the Trustee,
or exercising any trust or power conferred upon the Trustee under this
Indenture with respect to the Securities of that series; and

	 	(4)	 	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, if there is reasonable ground for believing
that the repayment of such funds or liability is not reasonably assured to it
under the terms of this Indenture or adequate indemnity against such risk is
not reasonably assured to it.

Section 7.02 Notice of Defaults.

If a Default occurs hereunder with respect to Securities of any series and is known to a
Responsible Officer of the Trustee, the Trustee shall give the holders of Securities of such series
notice of such Default as and to the extent provided by the Trust Indenture Act; provided, however,
that in the case of any Default of the character specified in clause (3) of Section 6.01(a) with
respect to Securities of such series, no such notice to holders shall be given until at least 30
days after the occurrence thereof.

Section 7.03 Certain Rights of Trustee.

Except as otherwise provided in Section 7.01:

(a) The Trustee may rely and shall be protected in acting or refraining from acting upon any
resolution, certificate, statement, instrument, opinion, report, notice, request, consent, order,
approval, bond, security or other paper or document believed by it 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 a Board Resolution or an instrument signed in the name of the Company, by
the President or any Vice President and by the Secretary or an Assistant Secretary or the Treasurer
or an Assistant Treasurer thereof (unless other evidence in respect thereof is specifically
prescribed herein);

(c) The Trustee may consult with counsel and the written advice of such counsel or any Opinion
of Counsel shall be full and complete authorization and protection in respect of any action taken
or suffered or omitted hereunder in good faith and in reliance thereon;

 

29

 

(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 Securityholders, pursuant to
the provisions of this Indenture, unless such Securityholders shall have offered to the Trustee
reasonable security or indemnity against the costs, expenses and liabilities that may be incurred
therein or thereby; nothing contained herein shall, however, relieve the Trustee of the obligation,
upon the occurrence of an Event of Default with respect to a series of the Securities (that has not
been cured or waived) to exercise with respect to Securities of that series such of the rights and
powers vested in it by this Indenture, and to use the same degree of care and skill in their
exercise, as a prudent man would exercise or use under the circumstances in the conduct of his own
affairs;

(e) The Trustee shall not be liable for any action taken or omitted to be taken by it in good
faith and believed by it to be authorized or within the discretion or rights or powers conferred
upon it by this Indenture;

(f) 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, approval, bond, security, or other papers or documents, unless requested in writing so to do
by the holders of not less than a majority in principal amount of the Outstanding Securities of the
particular series affected thereby (determined as provided in Section 8.04); 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 reasonable indemnity against such costs, expenses or liabilities
as a condition to so proceeding. The reasonable expense of every such examination shall be paid by
the Company or, if paid by the Trustee, shall be repaid by the Company upon demand; and

(g) The Trustee may execute any of the trusts or powers hereunder or perform any duties
hereunder either directly or by or through agents or attorneys and the Trustee shall not be
responsible for any misconduct or negligence on the part of any agent or attorney appointed with
due care by it hereunder.

Section 7.04 Trustee Not Responsible for Recitals or Issuance or Securities.

(a) The recitals contained herein and in the Securities shall be taken as the statements of
the Company, and the Trustee assumes no responsibility for the correctness of the same.

(b) The Trustee makes no representations as to the validity or sufficiency of this Indenture
or of the Securities.

(c) The Trustee shall not be accountable for the use or application by the Company of any of
the Securities or of the proceeds of such Securities, or for the use or application of any moneys
paid over by the Trustee in accordance with any provision of this Indenture or established pursuant
to Section 2.01, or for the use or application of any moneys received by any paying agent other
than the Trustee.

 

30

 

Section 7.05 May Hold Securities.

The Trustee or any paying agent or Security Registrar, in its individual or any other
capacity, may become the owner or pledgee of Securities with the same rights it would have if it
were not Trustee, paying agent or Security Registrar.

Section 7.06 Moneys Held in Trust.

Subject to the provisions of Section 11.05, all moneys received by the Trustee shall, until
used or applied as herein provided, be held in trust for the purposes for which they were received,
but 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 moneys received by it hereunder except such as it
may agree with the Company to pay thereon.

Section 7.07 Compensation and Reimbursement.

(a) The Company covenants and agrees to pay to the Trustee, and the Trustee shall be entitled
to, such reasonable compensation (which shall not be limited by any provision of law in regard to
the compensation of a trustee of an express trust), as the Company, and the Trustee may from time
to time agree in writing, for all services rendered by it in the execution of the trusts hereby
created and in the exercise and performance of any of the powers and duties hereunder of the
Trustee, and, except as otherwise expressly provided herein, the Company will pay or reimburse the
Trustee upon its request for all reasonable expenses, disbursements and advances incurred or made
by the Trustee in accordance with any of the provisions of this Indenture (including the reasonable
compensation and the expenses and disbursements of its counsel and of all Persons not regularly in
its employ) except any such expense, disbursement or advance as may arise from its negligence or
bad faith. The Company also covenants to indemnify the Trustee (and its officers, agents,
directors and employees) for, and to hold it harmless against, any loss, liability or expense
incurred without negligence or bad faith on the part of the Trustee and arising out of or in
connection with the acceptance or administration of this trust, including the costs and expenses of
defending itself against any claim of liability in the premises.

(b) The obligations of the Company under this Section to compensate and indemnify the Trustee
and to pay or reimburse the Trustee for expenses, disbursements and advances shall constitute
additional indebtedness hereunder. Such additional indebtedness shall be secured by a lien prior
to that of the Securities upon all property and funds held or collected by the Trustee as such,
except funds held in trust for the benefit of the holders of particular Securities.

Section 7.08 Reliance on Officers’ Certificate.

Except as otherwise provided in Section 7.01, 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 suffering or omitting to take any action hereunder, such matter
(unless other evidence in respect thereof be herein specifically prescribed) may, in the absence of
negligence or 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 certificate, in the
absence of negligence or bad faith on the part of the Trustee, shall be full warrant to the
Trustee for any action taken, suffered or omitted to be taken by it under the provisions of
this Indenture upon the faith thereof.

 

31

 

Section 7.09 Disqualification; Conflicting Interests.

If the Trustee has or shall acquire any “conflicting interest” within the meaning of Section
310(b) of the Trust Indenture Act, the Trustee and the Company shall in all respects comply with
the provisions of Section 310(b) of the Trust Indenture Act, subject to the penultimate paragraph
thereof.

Section 7.10 Corporate Trustee Required; Eligibility.

There shall at all times be a Trustee with respect to the Securities issued hereunder which
shall at all times be a corporation organized and doing business under the laws of the United
States of America or any State or Territory thereof or of the District of Columbia, or a
corporation or other Person permitted to act as trustee by the Commission, authorized under such
laws to exercise corporate trust powers, having a combined capital and surplus of at least 100
million U.S. dollars ($100,000,000), and subject to supervision or examination by Federal, State,
Territorial, or District of Columbia authority. If such corporation publishes reports of condition
at least annually, pursuant to law or to the requirements of the aforesaid supervising or examining
authority, then for the purposes of this Section, the combined capital and surplus of such
corporation shall be deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published. The Company may not, nor may any Person directly or indirectly
controlling, controlled by, or under common control with the Company, serve as Trustee. In case at
any time the Trustee shall cease to be eligible in accordance with the provisions of this Section,
the Trustee shall resign immediately in the manner and with the effect specified in Section 7.11.

Section 7.11 Resignation and Removal; Appointment of Successor.

(a) The Trustee or any successor hereafter appointed, may at any time resign with respect to
the Securities of one or more series by giving written notice thereof to the Company and by
transmitting notice of resignation by mail, first class postage prepaid, to the Securityholders of
such series, as their names and addresses appear upon the Security Register. Upon receiving such
notice of resignation, the Company shall promptly appoint a successor trustee with respect to
Securities of such series by written instrument, in duplicate, executed by order of the Board of
Directors, one copy of which instrument shall be delivered to the resigning Trustee and one copy to
the successor trustee. If no successor trustee shall have been so appointed and have accepted
appointment within 30 days after the mailing of such notice of resignation, the resigning Trustee,
at the expense of the Company may petition any court of competent jurisdiction for the appointment
of a successor trustee with respect to Securities of such series, or any Securityholder of that
series who has been a bona fide holder of a Security or Securities for at least six months may 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.

 

32

 

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

	 	(1)	 	the Trustee shall fail to comply with the provisions of Section
7.09 after written request therefor by the Company or by any Securityholder who
has been a bona fide holder of a Security or Securities for at least six
months; or

	 	(2)	 	the Trustee shall cease to be eligible in accordance with the
provisions of Section 7.10 and shall fail to resign after written request
therefor by the Company or by any such Securityholder; or

	 	(3)	 	the Trustee shall become incapable of acting, or shall be
adjudged a bankrupt or insolvent, or commence a voluntary bankruptcy
proceeding, or a receiver of the Trustee or of its property shall be appointed
or consented to, 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, the Company may remove the
Trustee with respect to all Securities 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, unless, in the case of a failure to
comply with Section 7.09, the Trustee’s duty to resign is stayed as provided in
the penultimate paragraph of Section 310(b) of the Trust Indenture Act, any
Securityholder who has been a bona fide holder of a Security or Securities for
at least six months may, on behalf of that holder 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 Securities of any series at
the time Outstanding may at any time remove the Trustee with respect to such series by so notifying
the Trustee and the Company and may appoint a successor Trustee for such series with the consent of
the Company.

(d) Any resignation or removal of the Trustee and appointment of a successor trustee with
respect to the Securities of a series pursuant to any of the provisions of this Section shall
become effective upon acceptance of appointment by the successor trustee as provided in Section
7.12.

(e) Any successor trustee appointed pursuant to this Section may be appointed with respect to
the Securities of one or more series or all of such series, and at any time there shall be only one
Trustee with respect to the Securities of any particular series.

 

33

 

Section 7.12 Acceptance of Appointment By Successor.

(a) In case of the appointment hereunder of a successor trustee with respect to all
Securities, every such successor trustee so appointed shall execute, acknowledge and deliver to
the Company and to the retiring Trustee an instrument accepting such appointment, and
thereupon the resignation or removal of the retiring Trustee shall become effective and such
successor trustee, without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee; but, on the request of the Company or
the successor trustee, such retiring Trustee shall, upon payment of its charges, execute and
deliver an instrument transferring to such successor trustee all the rights, powers, and trusts of
the retiring Trustee and shall duly assign, transfer and deliver to such successor trustee all
property and money held by such retiring Trustee hereunder.

(b) In case of the appointment hereunder of a successor trustee with respect to the Securities
of one or more (but not all) series, the Company, the retiring Trustee and each successor trustee
with respect to the Securities of one or more series shall execute and deliver an indenture
supplemental hereto wherein each successor trustee shall accept such appointment and which

	 	(1)	 	shall contain such provisions as shall be necessary or
desirable to transfer and confirm to, and to vest in, each successor trustee
all the rights, powers, trusts and duties of the retiring Trustee with respect
to the Securities of that or those series to which the appointment of such
successor trustee relates,

	 	(2)	 	shall contain such provisions as shall be deemed necessary or
desirable to confirm that all the rights, powers, trusts and duties of the
retiring Trustee with respect to the Securities of that or those series as to
which the retiring Trustee is not retiring shall continue to be vested in the
retiring Trustee, and

	 	(3)	 	shall add to or change any of the provisions of this Indenture
as shall be necessary to provide for or facilitate the administration of the
trusts hereunder by more than one Trustee, it being understood that nothing
herein or in such supplemental indenture shall constitute such Trustees
co-trustees of the same trust, that each such Trustee shall be trustee of a
trust or trusts hereunder separate and apart from any trust or trusts hereunder
administered by any other such Trustee and that no Trustee shall be responsible
for any act or failure to act on the part of any other Trustee hereunder; and
upon the execution and delivery of such supplemental indenture the resignation
or removal of the retiring Trustee shall become effective to the extent
provided therein, such retiring Trustee shall with respect to the Securities of
that or those series to which the appointment of such successor trustee relates
have no further responsibility for the exercise of rights and powers or for the
performance of the duties and obligations vested in the Trustee under this
Indenture, and each such successor trustee, without any further act, deed or
conveyance, shall become vested with all the rights, powers, trusts and duties
of the retiring Trustee with respect to the Securities of that or those series
to which the appointment of such successor trustee relates; but, on request of
the Company or any successor trustee, such retiring Trustee shall duly assign,
transfer and deliver to such successor trustee, to the extent contemplated
by such supplemental indenture, the property and money held by such retiring
Trustee hereunder with respect to the Securities of that or those series to
which the appointment of such successor trustee relates.

 

34

 

(c) Upon request of any such successor trustee, the Company shall execute any and all
instruments for more fully and certainly vesting in and confirming to such successor trustee all
such rights, powers and trusts referred to in paragraph (a) or (b) of this Section, as the case may
be.

(d) No successor trustee shall accept its appointment unless at the time of such acceptance
such successor trustee shall be qualified and eligible under this Article.

(e) Upon acceptance of appointment by a successor trustee as provided in this Section, the
Company shall transmit notice of the succession of such trustee hereunder by mail, first class
postage prepaid, to the Securityholders, as their names and addresses appear upon the Security
Register. If the Company fails to transmit such notice within ten days after acceptance of
appointment by the successor trustee, the successor trustee shall cause such notice to be
transmitted at the expense of the Company.

Section 7.13 Merger, Conversion, Consolidation or Succession to Business.

Any corporation into which the Trustee may be merged or converted or with which it may be
consolidated, or any corporation resulting from any merger, conversion or consolidation to which
the Trustee shall be a party, or any corporation succeeding to the corporate trust business of the
Trustee, shall be the successor of the Trustee hereunder, provided that such corporation shall be
qualified under the provisions of Section 7.09 and eligible under the provisions of Section 7.10,
without the execution or filing of any paper or any further act on the part of any of the parties
hereto, anything herein to the contrary notwithstanding. In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such authentication and
deliver the Securities so authenticated with the same effect as if such successor Trustee had
itself authenticated such Securities.

Section 7.14 Preferential Collection of Claims Against the Company.

The Trustee shall comply with Section 311(a) of the Trust Indenture Act, excluding any
creditor relationship described in Section 311(b) of the Trust Indenture Act. A Trustee who has
resigned or been removed shall be subject to Section 311(a) of the Trust Indenture Act to the
extent included therein.

 

35

 

ARTICLE VIII

CONCERNING THE SECURITYHOLDERS

Section 8.01 Evidence of Action by Securityholders.

Whenever in this Indenture it is provided that the holders of a majority or specified
percentage in aggregate principal amount of the Securities of a particular series 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 majority or specified percentage of that series have joined therein may be
evidenced by any instrument or any number of instruments of similar tenor executed by such holders
of Securities of that series in Person or by agent or proxy appointed in writing. If the Company
shall solicit from the Securityholders of any series any request, demand, authorization, direction,
notice, consent, waiver or other action, the Company may, at its option, as evidenced by an
Officers’ Certificate, fix in advance a record date for such series for the determination of
Securityholders entitled to give such request, demand, authorization, direction, notice, consent,
waiver or other action, but the Company shall have no obligation to do so. If such a record date
is fixed, such request, demand, authorization, direction, notice, consent, waiver or other action
may be given before or after the record date, but only the Securityholders of record at the close
of business on the record date shall be deemed to be Securityholders for the purposes of
determining whether Securityholders of the requisite proportion of Outstanding Securities of that
series have authorized or agreed or consented to such request, demand, authorization, direction,
notice, consent, waiver or other action, and for that purpose the Outstanding Securities of that
series shall be computed as of the record date; provided, however, that no such authorization,
agreement or consent by such Securityholders on the record date shall be deemed effective unless it
shall become effective pursuant to the provisions of this Indenture not later than six months after
the record date.

Section 8.02 Proof of Execution by Securityholders.

Subject to the provisions of Section 7.01, proof of the execution of any instrument by a
Securityholder (such proof will not require notarization) or his agent or proxy and proof of the
holding by any Person of any of the Securities shall be sufficient if made in the following manner:

	 	(a)	 	The fact and date of the execution by any such Person of any instrument may be
proved in any reasonable manner acceptable to the Trustee.

	 	(b)	 	The ownership of Securities shall be proved by the Security Register of such
Securities or by a certificate of the Security Registrar thereof.

	 	(c)	 	The Trustee may require such additional proof of any matter referred to in this
Section as it shall deem necessary.

Section 8.03 Who May be Deemed Owners.

Prior to the due presentment for registration of transfer of any Security, the Company, the
Trustee, any paying agent and any Security Registrar may deem and treat the Person in whose name
such Security shall be registered upon the books of the Company as the absolute owner of such
Security (whether or not such Security shall be overdue and notwithstanding any notice of ownership
or writing thereon made by anyone other than the Security Registrar) for the purpose of receiving
payment of or on account of the principal of (and premium, if any) and (subject to Section 2.03)
interest on such Security and for all other purposes; and neither the Company nor the Trustee nor
any paying agent nor any Security Registrar shall be affected by any notice to the
contrary.

 

36

 

Section 8.04 Certain Securities Owned by Company Disregarded.

In determining whether the holders of the requisite aggregate principal amount of Securities
of a particular series have concurred in any direction, consent of waiver under this Indenture, the
Securities of that series that are owned by the Company or any other obligor on the Securities of
that series or by any Person directly or indirectly controlling or controlled by or under common
control with the Company or any other obligor on the Securities of that series shall be disregarded
and deemed not to be Outstanding for the purpose of any such determination, except that for the
purpose of determining whether the Trustee shall be protected in relying on any such direction,
consent or waiver, only Securities of such series that the Trustee actually knows are so owned
shall be so disregarded. The Securities so owned that have been pledged in good faith may be
regarded as Outstanding for the purposes of this Section, if the pledgee shall establish to the
satisfaction of the Trustee the pledgee’s right so to act with respect to such Securities and that
the pledgee is not 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 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.

Section 8.05 Actions Binding on Future Securityholders.

At any time prior to (but not after) the evidencing to the Trustee, as provided in Section
8.01, of the taking of any action by the holders of the majority or percentage in aggregate
principal amount of the Securities of a particular series specified in this Indenture in connection
with such action, any holder of a Security of that series that is shown by the evidence to be
included in the Securities the holders of which have consented to such action may, by filing
written notice with the Trustee, and upon proof of holding as provided in Section 8.02, revoke such
action so far as concerns such Security. Except as aforesaid any such action taken by the holder
of any Security shall be conclusive and binding upon such holder and upon all future holders and
owners of such Security, and of any Security issued in exchange therefor, on registration of
transfer thereof or in place thereof, irrespective of whether or not any notation in regard thereto
is made upon such Security. Any action taken by the holders of the majority or percentage in
aggregate principal amount of the Securities of a particular series specified in this Indenture in
connection with such action shall be conclusively binding upon the Company, the Trustee and the
holders of all the Securities of that series.

ARTICLE IX

SUPPLEMENTAL INDENTURES

Section 9.01 Supplemental Indentures Without the Consent of Securityholders.

In addition to any supplemental indenture otherwise authorized by this Indenture, the Company
and the Trustee may from time to time and at any time enter into an indenture or indentures
supplemental hereto (which shall conform to the provisions of the Trust Indenture Act as then in
effect), without the consent of the Securityholders, for one or more of the following purposes:

	 	(1)	 	to cure any ambiguity, defect, or inconsistency herein or in the Securities of
any series;

 

37

 

	 	(2)	 	to comply with Article X;

	 	(3)	 	to provide for uncertificated Securities in addition to or in place of
certificated Securities;

	 	(4)	 	to add to the covenants of the Company for the benefit of the holders of all or
any series of Securities (and if such covenants are to be for the benefit of less than
all series of Securities, stating that such covenants are expressly being included
solely for the benefit of such series) or to surrender any right or power herein
conferred upon the Company or to add any additional Events of Default for the benefit
of the holders of all or any series of Securities (and if such additional Events of
Default are to be for the benefit of less than all series of Securities, stating that
such additional Events of Default are expressly being included solely for the benefit
of such series);

	 	(5)	 	to add to, delete from, or revise the conditions, limitations, and restrictions
on the authorized amount, terms, or purposes of issue, authentication, and delivery of
Securities (prior to the issuance thereof), as herein set forth;

	 	(6)	 	to make any change that does not adversely affect the rights of any
Securityholder in any material respect;

	 	(7)	 	to provide for the issuance of and establish the form and terms and conditions
of the Securities of any series as provided in Section 2.01, to establish the form of
any certifications required to be furnished pursuant to the terms of this Indenture or
any series of Securities, or to add to the rights of the holders of any series of
Securities; or

	 	(8)	 	to evidence and provide for the acceptance of appointment hereunder by a
successor Trustee with respect to the Securities of one or more series and to add to or
change any of the provisions of this Indenture as shall be necessary to provide for or
facilitate the administration of the trusts hereunder by more than one Trustee,
pursuant to the requirements of Section 7.12.

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

Any supplemental indenture authorized by the provisions of this Section may be executed by the
Company and the Trustee without the consent of the holders of any of the Securities at the time
Outstanding, notwithstanding any of the provisions of Section 9.02.

 

38

 

Section 9.02 Supplemental Indentures With Consent of Securityholders.

With the consent (evidenced as provided in Section 8.01) of the holders of not less than a
majority in aggregate principal amount of the Securities of each series affected by such
supplemental indenture or indentures at the time Outstanding, the Company and the Trustee may from
time to time and at any time enter into an indenture or indentures supplemental hereto (which shall
conform to the provisions of the Trust Indenture Act as then in effect) for the purpose of adding
any provisions to or changing in any manner or eliminating any of the provisions of this Indenture
or of any supplemental indenture or of modifying in any manner not covered by Section 9.01 the
rights of the holders of the Securities of such series under this Indenture; provided, however,
that no such supplemental indenture shall, without the consent of the holders of each Security then
Outstanding and affected thereby:

(1) change the maturity of the principal of, or any installment of principal of or interest
on, any Security, or reduce the principal amount thereof or the rate of interest thereon or any
premium payable upon the redemption thereof, or reduce the amount of the principal of an Original
Issue Discount Security or any other Security which would be due and payable upon a declaration of
acceleration of the maturity thereof pursuant to Section 6.01 or change the coin or currency in
which any Security or any premium or interest thereon is payable, or impair the right to institute
suit for the enforcement of any such payment on or after the maturity thereof (or, in the case of
redemption, on or after the redemption date), or

(2) reduce the percentage in principal amount of the Outstanding Securities of any series, the
consent of whose holders is required for any such supplemental indenture, or the consent of whose
holders is required for any waiver of certain defaults hereunder and their consequences provided
for in this Indenture, or

(3) modify any of the provisions of this Section or Section 6.06 relating to waivers of
default, except to increase any such percentage or to provide that certain other provisions of this
Indenture cannot be modified or waived without the consent of the holder of each Outstanding
Security affected thereby; provided, however, that this clause shall not be deemed to require the
consent of any holder with respect to changes in the references to “the Trustee” and concomitant
changes in this Section, or the deletion of this proviso, in accordance with the requirements of
Sections 7.12 and 9.01(8).

A supplemental indenture which changes or eliminates any covenant or other provision of this
Indenture which has expressly been included solely for the benefit of one or more particular series
of Securities, or which modifies the rights of the holders of Securities of such series with
respect to such covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the holders of Securities of any other series. It shall not be necessary for the
consent of the Securityholders of any series affected thereby under this Section to approve the
particular form of any proposed supplemental indenture, but it shall be sufficient if such consent
shall approve the substance thereof.

 

39

 

Section 9.03 Effect of Supplemental Indentures.

Upon the execution of any supplemental indenture pursuant to the provisions of this
Article or of Section 10.01, this Indenture shall, with respect to such series, be and be
deemed to be modified and amended in accordance therewith and the respective rights, limitations of
rights, obligations, duties and immunities under this Indenture of the Trustee, the Company and the
holders of Securities of the series affected thereby 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 Securities Affected by Supplemental Indentures.

Securities of any series, affected by a supplemental indenture, authenticated and delivered
after the execution of such supplemental indenture pursuant to the provisions of this Article or of
Section 10.01, may bear a notation in form approved by the Company, provided such form meets the
requirements of any exchange upon which such series may be listed, as to any matter provided for in
such supplemental indenture. If the Company shall so determine, new Securities of that series so
modified as to conform, in the opinion of the Board of Directors of the Company, to any
modification of this Indenture contained in any such supplemental indenture may be prepared by the
Company, authenticated by the Trustee and delivered in exchange for the Securities of that series
then Outstanding.

Section 9.05 Execution of Supplemental Indentures.

Upon the request of the Company, accompanied by its Board Resolutions authorizing the
execution of any such supplemental indenture, and upon the filing with the Trustee of evidence of
the consent of Securityholders required to consent thereto 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 may in its discretion but shall not be obligated to enter into such supplemental
indenture.

Promptly after the execution by the Company and the Trustee of any supplemental indenture
pursuant to the provisions of this Section, the Trustee shall transmit by mail, first class postage
prepaid, a notice, setting forth in general terms the substance of such supplemental indenture, to
the Securityholders of all series affected thereby as their names and addresses appear upon the
Security Register. Any failure of the Trustee to mail such notice, or any defect therein, shall
not, however, in any way impair or affect the validity of any such supplemental indenture.

 

40

 

ARTICLE X

SUCCESSOR ENTITY

Section 10.01 Company May Consolidate, Etc.

Nothing contained in this Indenture or in any of the Securities shall prevent any
consolidation or merger of the Company with or into any other Person (whether or not affiliated
with the Company) or successive consolidations or mergers in which the Company or its successor or
successors shall be a party or parties, or shall prevent any sale, conveyance, transfer or other
disposition of the property of the Company or its successor or successors as an entirety,
or substantially as an entirety, to any other Person (whether or not affiliated with the
Company or its successor or successors) authorized to acquire and operate the same; provided,
however, the Company hereby covenants and agrees that, upon any such consolidation or merger (in
each case, if the Company is not the survivor of such transaction), sale, conveyance, transfer or
other disposition, the due and punctual payment of the principal of (and premium, if any) and
interest on all of the Securities of all series in accordance with the terms of each series,
according to their tenor and the due and punctual performance and observance of all the covenants
and conditions of this Indenture or established with respect to each series of Securities pursuant
to Section 2.01 to be kept or performed by the Company shall be expressly assumed, by supplemental
indenture (which shall conform to the provisions of the Trust Indenture Act, as then in effect)
satisfactory in form to the Trustee executed and delivered to the Trustee by the entity formed by
such consolidation, or into which the Company shall have been merged, or by the entity which shall
have acquired such property.

Section 10.02 Successor Entity Substituted.

(a) In case of any such consolidation, merger, sale, conveyance, transfer or other disposition
and upon the assumption by the successor entity 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 premium, if any) and interest on all of the Securities of all series Outstanding
and the due and punctual performance of all of the covenants and conditions of this Indenture or
established with respect to each series of the Securities pursuant to Section 2.01 to be performed
by the Company, such successor entity shall succeed to and be substituted for the Company with the
same effect as if it had been named as the Company herein, and thereupon the predecessor
corporation shall be relieved of all obligations and covenants under this Indenture and the
Securities.

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

(c) Nothing contained in this Article shall require any action by the Company in the case of a
consolidation or merger of any Person into the Company where the Company is the survivor of such
transaction, or the acquisition by the Company, by purchase or otherwise, of all or any part of the
property of any other Person (whether or not affiliated with the Company).

Section 10.03 Evidence of Consolidation, Etc. to Trustee.

The Trustee, subject to the provisions of Section 7.01, may receive an Opinion of Counsel as
conclusive evidence that any such consolidation, merger, sale, conveyance, transfer or other
disposition, and any such assumption, comply with the provisions of this Article.

 

41

 

ARTICLE XI

SATISFACTION AND DISCHARGE; DEFEASANCE

Section 11.01 Satisfaction and Discharge.

This Indenture will be discharged and will cease to be of further effect with respect to a
series of Securities (except as to any surviving rights of registration of transfer or
exchange of such series of Securities herein expressly provided for), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging satisfaction and discharge
of this Indenture with respect to such series, when:

	 	(1)	 	either (a) all Securities of that series theretofore authenticated and
delivered (other than (i) any Securities that shall have been destroyed, lost or stolen
and that shall have been replaced or paid as provided in Section 2.07 and (ii)
Securities for whose payment money or noncallable Governmental Obligations have
theretofore been deposited in trust or segregated and held in trust by the Company and
thereafter repaid to the Company or discharged from such trust, as provided in Section
11.05) have been delivered to the Trustee for cancellation; or (b) all Securities of
such series not theretofore delivered to the Trustee for cancellation (i) have become
due and payable, or (ii) will by their terms become due and payable within one year or
(iii) are to be called for redemption within one year under arrangements satisfactory
to the Trustee for the giving of notice of redemption, and the Company shall deposit or
cause to be deposited with the Trustee as trust funds in trust for the purpose (x)
moneys in an amount, or (y) noncallable Governmental Obligations the scheduled
principal of and interest on which in accordance with their terms will provide, not
later than the due date of any payment, money in an amount, or (z) a combination
thereof, sufficient, in the case of (y) or (z), in the opinion of a nationally
recognized firm of independent public accountants expressed in a written certification
thereof delivered to the Trustee, to pay and discharge, at maturity or upon redemption,
all Securities of that series not theretofore delivered to the Trustee for
cancellation, including principal (and premium, if any) and interest due or to become
due to such date of maturity or date fixed for redemption, as the case may be;

	 	(2)	 	the Company has paid or caused to be paid all other sums payable hereunder with
respect to such series by the Company; and

	 	(3)	 	the Company has delivered to the Trustee an Officers’ Certificate and an
Opinion of Counsel, each stating that all the conditions precedent herein provided for
relating to the satisfaction and discharge of this Indenture with respect to such
series of Securities have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture with respect to a series of
Securities, the obligations of the Trustee under Section 7.07 and, if money shall have been
deposited with the Trustee pursuant to subclause (y) of clause (1) of this Section, the obligations
of the Trustee under Sections 11.03 and 11.05 shall survive.

 

42

 

Section 11.02 Defeasance.

The Company may, at its option and at any time (including notwithstanding the exercise by the
Company of a Covenant Defeasance (as defined herein)), elect to have its obligations discharged
with respect to a series of the Securities (“Legal Defeasance”). Such Legal Defeasance means that
the Company shall be deemed to have paid and discharged the entire
indebtedness represented by such series of Securities, except for (a) the rights of holders to
receive payments in respect of the principal of (and premium, if any) and interest on the
Securities when such payments are due solely from the trust fund described in this Section, (b) the
Company’s obligations with respect to such series of Securities concerning issuing temporary
Securities, registration of transfer or exchange of such series of Securities, mutilated,
destroyed, lost or stolen Securities of such series and the maintenance of an office or agency for
payments, (c) the rights, powers, trust, duties and immunities of the Trustee and the Company’s
obligations in connection therewith and (d) the Legal Defeasance provisions of this Indenture. In
addition, the Company may, at its option and at any time, elect to have the obligations of the
Company released with respect to covenants provided with respect to such series of Securities under
Section 2.01(15), 9.01(4) and 9.01(7) of this Indenture (“Covenant Defeasance”) and thereafter any
omission to comply with such obligations shall not constitute a Default or Event of Default with
respect to such series of Securities. In the event of Covenant Defeasance, those events described
under Section 6.01(a) with respect to the foregoing covenants will no longer constitute an Event of
Default with respect to such series of Securities.

In order to exercise either Legal Defeasance or Covenant Defeasance:

	 	(1)	 	the Company must irrevocably deposit with the Trustee, in trust, for the
benefit of the holders of such series, (A) moneys in an amount, or (B) noncallable
Governmental Obligations the scheduled principal of and interest on which in accordance
with their terms will provide, not later than the due date of any payment, money in an
amount, or (C) a combination thereof, sufficient, in the case of (B) or (C), in the
opinion of a nationally recognized firm of independent public accountants expressed in
a written certification thereof delivered to the Trustee, to pay and discharge, at
maturity or upon redemption, the principal of (and premium, if any) and interest on
such series of Securities on the stated date for payment thereof or on the applicable
redemption date, as the case may be;

	 	(2)	 	in the case of Legal Defeasance, the Company shall have delivered to the
Trustee an Opinion of Counsel confirming that (a) the Company has received from, or
there has been published by, the Internal Revenue Service a ruling or (b) since the
date of this Indenture, there has been a change in the applicable federal income tax
law, in either case to the effect that, and based thereon such Opinion of Counsel shall
confirm that, the holders of such series of Securities will not recognize income, gain
or loss for federal income tax purposes as a result of such Legal Defeasance and will
be subject to federal income tax on the same amounts, in the same manner and at the
same times as would have been the case if such Legal Defeasance had not occurred;

	 	(3)	 	in the case of Covenant Defeasance, the Company shall have delivered to the
Trustee an Opinion of Counsel confirming that the holders of such series of Securities
will not recognize income, gain or loss for federal income tax purposes as a result of
such Covenant Defeasance and will be subject to federal income tax on the same amounts,
in the same manner and at the same times as would have been the case if such Covenant
Defeasance had not occurred;

 

43

 

	 	(4)	 	no Default or Event of Default with respect to the Securities of such series
shall have occurred and be continuing on the date of such deposit or insofar as Events
of Default under clauses (4) and (5) of Section 6.01(a) are concerned, at any time in
the period ending on the 91st day after the date of deposit;

	 	(5)	 	the Company shall have delivered to the Trustee an Officers’ Certificate and an
Opinion of Counsel, each stating that all conditions precedent provided for or relating
to the Legal Defeasance or the Covenant Defeasance, as the case may be, have been
complied with; and

	 	(6)	 	if such series of Securities are to be redeemed prior to final maturity (other
than from mandatory sinking fund payments or analogous payments), notice of such
redemption shall have been duly given pursuant to this Indenture or provision therefor
satisfactory to the Trustee shall have been made.

Section 11.03 Deposited Moneys to be Held in Trust.

All moneys or Governmental Obligations deposited with the Trustee pursuant to Sections 11.01
or 11.02 shall be held in trust and shall be available for payment as due, either directly or
through any paying agent (including the Company acting as its own paying agent), to the holders of
the particular series of Securities for the payment or redemption of which such moneys or
Governmental Obligations have been deposited with the Trustee.

Section 11.04 Payment of Moneys Held by Paying Agents.

In connection with the satisfaction and discharge of this Indenture all moneys or Governmental
Obligations then held by any paying agent under the provisions of this Indenture shall, upon demand
of the Company, be paid to the Trustee and thereupon such paying agent shall be released from all
further liability with respect to such moneys or Governmental Obligations.

Section 11.05 Repayment to Company.

Any moneys or Governmental Obligations deposited with any paying agent or the Trustee, or then
held by the Company, in trust for payment of principal of (or premium, if any) or interest on the
Securities of a particular series that are not applied but remain unclaimed by the holders of such
Securities for at least two years after the date upon which the principal of (and premium, if any)
or interest on such Securities shall have respectively become due and payable, shall be repaid to
the Company on May 31 of each year or (if then held by the Company) shall be discharged from such
trust; and thereupon the paying agent and the Trustee shall be released from all further liability
with respect to such moneys or Governmental Obligations, and the holder of any of the Securities
entitled to receive such payment shall thereafter, as an unsecured general creditor, look only to
the Company for the payment thereof as an unsecured general creditor, unless an abandoned property
law designates another Person.

 

44

 

ARTICLE XII

IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS

Section 12.01 No Recourse.

No recourse under or upon any obligation, covenant or agreement of this Indenture, or of any
Security, or for any claim based thereon or otherwise in respect thereof, shall be had against any
incorporator, stockholder, officer or director, past, present or future as such, of the Company or
of any predecessor or successor corporation, either directly or through the Company or any such
predecessor or 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 this Indenture and the obligations issued hereunder are solely corporate obligations, and that
no such personal liability whatever shall attach to, or is or shall be incurred by, the
incorporators, stockholders, officers or directors as such, of the Company or of any predecessor or
successor corporation, or any of them, because of the creation of the indebtedness hereby
authorized, or under or by reason of the obligations, covenants or agreements contained in this
Indenture or in any of the Securities or implied therefrom; and that any and all such personal
liability of every name and nature, either at common law or in equity or by constitution or
statute, of, and any and all such rights and claims against, every such incorporator, stockholder,
officer or director as such, because of the creation of the indebtedness hereby authorized, or
under or by reason of the obligations, covenants or agreements contained in this Indenture or in
any of the Securities or implied therefrom, are hereby expressly waived and released as a condition
of, and as a consideration for, the execution of this Indenture and the issuance of such
Securities.

ARTICLE XIII

MISCELLANEOUS PROVISIONS

Section 13.01 Effect on Successors and Assigns.

All the covenants, stipulations, promises and agreements in this Indenture contained by or on
behalf of the Company shall bind its successors and assigns, whether so expressed or not.

Section 13.02 Actions by Successor.

Any act or proceeding by any provision of this Indenture authorized or required to be done or
performed by any board, committee or officer of the Company shall and may be done and performed
with like force and effect by the corresponding board, committee or officer of any corporation that
shall at the time be the lawful successor of the Company.

Section 13.03 Surrender of Company Powers.

The Company by instrument in writing executed by authority of its Board of Directors and
delivered to the Trustee may surrender any of the powers reserved to the Company, and thereupon
such power so surrendered shall terminate both as to the Company and as to any successor
corporation.

 

45

 

Section 13.04 Notices.

Except as otherwise expressly provided herein any notice or demand that by any provision of
this Indenture is required or permitted to be given or served by the Trustee or by the holders of
Securities to or on the Company may be given or served by being deposited first class postage
prepaid in a post-office letterbox addressed (until another address is filed in writing by the
Company with the Trustee), as follows:

If to the Company, to:

Human Genome Sciences, Inc.

14200 Shady Grove Road,

Rockville, Maryland 20850-7464

Facsimile No.: (301) 517-8831

Attention: General Counsel

DLA Piper

6225 Smith Avenue,

Baltimore, MD 21209

Facsimile No.: (410) 580-3001

Attention: Robert W. (Jay) Smith, Jr. and Jason C. Harmon

If to the Trustee, to:

The Bank of New York Mellon Trust Company, N.A.

525 William Penn Place,

38th Floor, Pittsburgh,

PA 15259,

Attn: Corporate Trust

Facsimile No.: (412) 234-7535

Any notice, election, request or demand by the Company or any Securityholder to or upon the
Trustee shall be deemed to have been sufficiently given or made, for all purposes, if given or made
in writing at the Corporate Trust Office of the Trustee.

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

Any notice or communication mailed to a holder shall be mailed by first-class mail or
delivered by guaranteed overnight courier or by other electronic means to it at its address shown
on the register kept by the primary Security Registrar. Any notice or communication shall also be
so mailed to any Person described in Trust Indenture Act Section 313(c), to the extent required by
the Trust Indenture Act.

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

 

46

 

If the Company mails a notice or communication to holders, it shall mail a copy to the Trustee
and each Agent at the same time.

Section 13.05 Governing Law.

THE INDENTURE AND THIS SECURITY, AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR
RELATED TO THE INDENTURE OR THIS SECURITY, SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF NEW YORK.

Section 13.06 Treatment of Securities as Debt.

It is intended that the Securities will be treated as indebtedness and not as equity for
federal income tax purposes. The provisions of this Indenture shall be interpreted to further this
intention.

Section 13.07 Compliance Certificates and Opinions.

(a) 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’
Certificate stating that all conditions precedent 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.

(b) Each certificate or opinion provided for in this Indenture and delivered to the Trustee
with respect to compliance with a condition or covenant 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 statements or opinions contained in such
certificate or opinion are 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 13.08 Payments on Business Days.

Except as provided pursuant to Section 2.01 pursuant to a Board Resolution, and as set forth
in an Officers’ Certificate, or established in one or more indentures supplemental to this
Indenture, in any case where the date of maturity of interest or principal of any Security or the
date of redemption of any Security shall not be a Business Day, then payment of interest or
principal (and premium, if any) may be made on the next succeeding Business Day with the same
force and effect as if made on the nominal date of maturity or redemption, and no interest shall
accrue for the period after such nominal date.

 

47

 

Section 13.09 Conflict with Trust Indenture Act.

If and to the extent that any provision of this Indenture limits, qualifies or conflicts with
the duties imposed by Sections 310 to 317, inclusive, of the Trust Indenture Act, such imposed
duties shall control. If any provision of this Indenture modifies or excludes any provision of the
Trust Indenture Act which may be so modified or excluded, the latter provision shall be deemed to
apply to this Indenture as so modified or to be excluded, as the case may be.

Section 13.10 Counterparts.

This Indenture may be executed in any number of counterparts, each of which shall be an
original, but such counterparts shall together constitute one and the same instrument.

Section 13.11 Separability.

In case any one or more of the provisions contained in this Indenture or in the Securities of
any series shall for any reason be held to be invalid, illegal or unenforceable in any respect,
such invalidity, illegality or unenforceability shall not affect any other provisions of this
Indenture or of such Securities, but this Indenture and such Securities shall be construed as if
such invalid or illegal or unenforceable provision had never been contained herein or therein.

Section 13.12 Assignment.

The Company will have the right at all times to assign any of its rights or obligations under
this Indenture to a direct or indirect wholly-owned Subsidiary of the Company, provided that, in
the event of any such assignment, the Company, will remain liable for all such obligations.
Subject to the foregoing, the Indenture is binding upon and inures to the benefit of the parties
thereto and their respective successors and assigns. This Indenture may not otherwise be assigned
by the parties thereto.

 

48

 

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

	 	 	 	 	 	 	 
	 	 	HUMAN GENOME SCIENCES, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David P. Southwell	 	 
	 

	 	 	 	 

Name: David P. Southwell
	 	 
	 

	 	 	 	Title:   Executive Vice President and
Chief Financial Officer	 	 
	 
	 	 	 	 	 	 
	 	 	THE BANK OF NEW YORK MELLON	 	 
	 	 	TRUST COMPANY, N.A., as Trustee	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Natalie Lawrence	 	 
	 

	 	 	 	 

Name: Natalie Lawrence
	 	 
	 

	 	 	 	Title:  Associate	 	 

 

49Exhibit 4.2

Exhibit 4.2

HUMAN GENOME SCIENCES, INC.

FIRST SUPPLEMENTAL INDENTURE

DATED AS OF NOVEMBER 7, 2011

To

INDENTURE DATED AS OF NOVEMBER 7, 2011

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,

AS TRUSTEE

3.00% CONVERTIBLE SENIOR NOTES DUE 2018

 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page	 
	Recitals of the Company
	 
	 	 	 	 
	ARTICLE 1
Establishment of Series

	 
	 	 	 	 
	Section 1.01. Establishment
	 	 	1	 
	Section 1.02. Execution and Authentication; Payments of Interest and Defaulted Amounts
	 	 	3	 
	 
	 	 	 	 
	ARTICLE 2
DEFINITIONS AND INCORPORATION BY REFERENCE

	 
	 	 	 	 
	Section 2.01. General
	 	 	4	 
	Section 2.02. Definitions
	 	 	4	 
	Section 2.03. Trust Indenture Act Provisions
	 	 	11	 
	Section 2.04. Rules of Construction
	 	 	12	 
	Section 2.05. References to Additional Interest
	 	 	12	 
	 
	 	 	 	 
	ARTICLE 3
THE SECURITIES

	 
	 	 	 	 
	Section 3.01. General
	 	 	12	 
	Section 3.02. Registrar, Paying Agent and Conversion Agent
	 	 	12	 
	Section 3.03. Paying Agent to Hold Money in Trust
	 	 	13	 
	Section 3.04. Holders
	 	 	13	 
	Section 3.05. Transfer and Exchange
	 	 	13	 
	Section 3.06. Outstanding Securities
	 	 	13	 
	Section 3.07. Treasury Securities
	 	 	14	 
	Section 3.08. Cancellation; Repurchase
	 	 	14	 
	Section 3.09. Additional Transfer and Exchange Requirements
	 	 	14	 
	Section 3.10. CUSIP Numbers
	 	 	16	 
	 
	 	 	 	 
	ARTICLE 4
NO REDEMPTION; REPURCHASE UPON A FUNDAMENTAL CHANGE

	 
	 	 	 	 
	Section 4.01. No Optional Redemption
	 	 	16	 
	Section 4.02. Repurchase At Option of The Holder Upon A Fundamental Change
	 	 	16	 
	Section 4.03. Compliance With Securities Laws Upon Purchase of Securities
	 	 	18	 
	Section 4.04. No Repurchase Upon Acceleration
	 	 	18	 
	Section 4.05. Repayment to the Company
	 	 	18	 
	Section 4.06. Partial Repurchase
	 	 	18	 
	 
	 	 	 	 
	ARTICLE 5
CONVERSION

	 
	 	 	 	 
	Section 5.01. Conversion Rights
	 	 	19	 
	Section 5.02. Settlement Upon Conversion; Conversion Procedures
	 	 	20	 
	Section 5.03. Company to Provide Stock
	 	 	23	 
	Section 5.04. Adjustment to Conversion Rate Upon a Make-Whole Fundamental Change
	 	 	24	 
	Section 5.05. Conversion Rate Adjustments
	 	 	25	 
	Section 5.06. Adjustments of Prices
	 	 	32	 

 

i

 

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	Section 5.07. Effect of Recapitalizations, Reclassifications and Changes of the Common Stock
	 	 	32	 
	Section 5.08. Cancellation of Converted Securities
	 	 	33	 
	Section 5.09. Stockholders Rights
	 	 	34	 
	Section 5.10. Trustee’s Disclaimer
	 	 	34	 
	 
	 	 	 	 
	ARTICLE 6
COVENANTS

	 
	 	 	 	 
	Section 6.01. General
	 	 	34	 
	Section 6.02. Payment on the Securities
	 	 	34	 
	Section 6.03. SEC Reports
	 	 	35	 
	Section 6.04. Compliance Certificates
	 	 	35	 
	Section 6.05. Further Instruments and Acts
	 	 	35	 
	Section 6.06. Maintenance of Corporate Existence
	 	 	35	 
	Section 6.07. Stay, Extension and Usury Laws
	 	 	35	 
	 
	 	 	 	 
	ARTICLE 7
CONSOLIDATION, MERGER, SALE, CONVEYANCE, TRANSFER OR LEASE

	 
	 	 	 	 
	Section 7.01. General
	 	 	36	 
	Section 7.02. Company May Consolidate, Etc, Only on Certain Terms
	 	 	36	 
	Section 7.03. Successor Substituted
	 	 	37	 
	 
	 	 	 	 
	ARTICLE 8
DEFAULT AND REMEDIES

	 
	 	 	 	 
	Section 8.01. General
	 	 	37	 
	Section 8.02. Events Of Default
	 	 	37	 
	Section 8.03. Acceleration
	 	 	38	 
	Section 8.04. Other Remedies
	 	 	38	 
	Section 8.05. Additional Interest
	 	 	39	 
	Section 8.06. Waiver of Defaults and Events of Default
	 	 	39	 
	Section 8.07. Control by Majority
	 	 	39	 
	Section 8.08. Limitations on Suits
	 	 	39	 
	Section 8.09. Rights of Holders to Receive Payment and to Convert
	 	 	40	 
	Section 8.10. Collection Suit By Trustee
	 	 	40	 
	Section 8.11. Priorities
	 	 	41	 
	Section 8.12. Undertaking For Costs
	 	 	41	 
	 
	 	 	 	 
	ARTICLE 9
TRUSTEE

	 
	 	 	 	 
	Section 9.01. General
	 	 	41	 
	Section 9.02. Certain Duties and Responsibilities of Trustee
	 	 	41	 
	Section 9.03. Concerning the Trustee
	 	 	41	 
	Section 9.04. Expenses
	 	 	42	 
	Section 9.05. Supplemental Indentures
	 	 	42	 
	Section 9.06. Reliance
	 	 	42	 
	 
	 	 	 	 
	ARTICLE 10
SATISFACTION AND DISCHARGE OF INDENTURE

	 
	 	 	 	 
	Section 10.01. General
	 	 	42	 
	Section 10.02. Satisfaction And Discharge Of Indenture
	 	 	42	 
	Section 10.03. Application of Trust Money
	 	 	43	 
	Section 10.04. Repayment to Company
	 	 	43	 
	Section 10.05. Reinstatement
	 	 	43	 

 

ii

 

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	ARTICLE 11
AMENDMENTS, SUPPLEMENTS AND WAIVERS
	 	 	 	 
	 
	 	 	 	 
	Section 11.01. General
	 	 	44	 
	Section 11.02. Without Consent of Holders
	 	 	44	 
	Section 11.03. With Consent of Holders
	 	 	44	 
	Section 11.04. Effect of Supplemental Indentures
	 	 	46	 
	Section 11.05. Securities Affected by Supplemental Indentures
	 	 	46	 
	 
	 	 	 	 
	ARTICLE 12
MISCELLANEOUS

	 
	 	 	 	 
	Section 12.01. General
	 	 	46	 
	Section 12.02. Rules By Trustee, Paying Agent, Registrar And Conversion Agent
	 	 	46	 
	Section 12.03. Governing Law
	 	 	46	 
	Section 12.04. No Adverse Interpretation of Other Agreements
	 	 	46	 
	Section 12.05. Successors
	 	 	46	 
	Section 12.06. Multiple Counterparts
	 	 	46	 
	Section 12.07. Separability
	 	 	46	 
	Section 12.08. Table of Contents, Headings, Etc.
	 	 	46	 
	Section 12.09. Force Majeure
	 	 	47	 
	Section 12.10. Waiver of Jury Trial
	 	 	47	 

 

iii

 

EXHIBIT

	 	 	 	 	 	 	 
	Exhibit A
	 	Form of Security	 	 	A-1	 

 

iv

 

FIRST SUPPLEMENTAL INDENTURE, dated as of November 7, 2011, between HUMAN GENOME SCIENCES,
INC., a Delaware corporation (the “Company”), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
a national banking association, as Trustee.

RECITALS OF THE COMPANY

WHEREAS, the Company and the Trustee executed and delivered an Indenture, dated as of November
7, 2011 (the “Original Indenture”) to provide for the issuance by the Company from time to time of
its senior unsecured debt securities (herein called the “Debt Securities”), to be issued in one or
more series as provided in the Original Indenture;

WHEREAS, no Debt Security of any series has been created under the Original Indenture prior to
the date of execution of this First Supplemental Indenture; and

WHEREAS, under the Original Indenture, a new series of senior notes may at any time be
established in or pursuant to a Board Resolution, and set forth in an Officers’ Certificate or one
or more indentures supplemental to the Original Indenture;

WHEREAS, the Company proposes to create under the Original Indenture pursuant to this First
Supplemental Indenture a new series of convertible senior notes and to add new provisions to, and
change and eliminate certain existing provisions of, the Original Indenture in respect of such new
series of convertible senior notes;

WHEREAS, additional senior unsecured notes of other series hereafter established, except as
may be limited in the Original Indenture as at the time supplemented and modified, may be issued
from time to time pursuant to the Indenture as at the time supplemented and modified;

WHEREAS, all conditions under the Original Indenture necessary to authorize the execution and
delivery of this First Supplemental Indenture and make it a valid and binding obligation of the
Company in accordance with its terms, have been done or performed.

NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH, for and in consideration of the
premises set forth herein and for other good and valuable consideration the sufficiency of which is
hereby acknowledged, the Company and the Trustee agree as follows for the benefit of each other and
for the equal and ratable benefit of the Holders of the Company’s 3.00% Convertible Senior Notes
due 2018 (as are issued under this Indenture, and as amended or supplemented from time to time, the
“Securities”) to supplement the Original Indenture as follows:

ARTICLE 1

ESTABLISHMENT OF SERIES

Section 1.01. Establishment.

(a) Pursuant to Sections 2.01 and 9.01 of the Original Indenture there is hereby established
a new series of senior unsecured notes to be issued under the Indenture, designated as the
Company’s 3.00% Convertible Senior Notes due 2018.

(b) Each Security shall be dated the date of authentication thereof and shall bear interest
from the date of original issuance thereof or from the most recent Interest Payment Date to which
interest has been paid or duly provided for.

 

 

 

(c) The Securities and the Trustee’s certificate of authentication shall be substantially in
the respective forms set forth in Exhibit A, which Exhibit is incorporated in and made
part of this Indenture. The Securities may have notations, legends or endorsements required by
law, stock exchange rule or usage. The
Company shall provide any such notations, legends or endorsements to the Trustee in writing.
Each Security shall be dated the date of its authentication. The terms and provisions contained in
the Securities shall constitute, and are hereby expressly made, a part of this Indenture, and 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. However, to the extent any provision of any
Security conflicts with the express provisions of this Indenture, the provisions of this Indenture
shall govern and be controlling.

(d) All of the Securities shall be issued initially in the form of one or more Global
Securities, which shall be deposited on behalf of the purchasers of the Securities represented
thereby with the Trustee, at its Corporate Trust Office, as custodian for the depositary, The
Depository Trust Company (“DTC”) (such depositary, or any successor thereto, being hereinafter
referred to as the “Depositary”), and registered in the name of its nominee, Cede & Co., duly
executed by the Company and authenticated by the Trustee as hereinafter provided.

Each Global Security shall represent such of the outstanding Securities as shall be specified
therein and each shall provide that it shall represent the aggregate amount of outstanding
Securities from time to time reflected in the records of the Trustee, subject in each case to
compliance with the Applicable Procedures, and that the aggregate amount of outstanding Securities
represented thereby may from time to time be reduced or increased, as appropriate, to reflect
exchanges, purchases or conversions of such Securities. Any adjustment of the aggregate principal
amount of a Global Security to reflect the amount of any increase or decrease in the amount of
outstanding Securities represented thereby shall be made by the Trustee in accordance with
instructions given by the Holder thereof as required by Section 2.11 of the Original Indenture and
shall be made on the records of the Trustee and the Depositary.

Members of, or participants in, the Depositary (“Agent Members”) shall have no rights under
this Indenture with respect to any Global Security held on their behalf by the Depositary or under
the Global Security, and the Depositary (including, for this purpose, its nominee) may be treated
by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner and
Holder of such Global Security for all purposes whatsoever. Notwithstanding the foregoing, nothing
herein shall (1) prevent the Company, the Trustee or any agent of the Company or the Trustee from
giving effect to any written certification, proxy or other authorization furnished by the
Depositary or (2) impair, as between the Depositary and its Agent Members, the operation of
customary practices governing the exercise of the rights of a Holder of any Security.

(e) The Company shall execute and the Trustee shall, in accordance with this Article 1,
authenticate and deliver initially one or more Global Securities that (1) shall be registered in
the name of the Depositary, (2) shall be delivered by the Trustee to the Depositary or pursuant to
the Depositary’s instructions and (3) shall bear a legend substantially to the following effect:

“UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY
TRUST COMPANY 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 THE DEPOSITORY TRUST COMPANY (AND ANY
PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER
USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. THIS SECURITY IS A GLOBAL SECURITY WITHIN THE
MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A
DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN
THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED
CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN
PART FOR SECURITIES IN DEFINITIVE FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A
WHOLE 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.”

 

2

 

Section 1.02. Execution and Authentication; Payments of Interest and Defaulted Amounts.

(a) Section 2.03 of Article II of the Original Indenture shall not apply to, and have no
force and effect with respect to, the Securities and any reference to Section 2.03 of Article II
of the Original Indenture shall be superseded by and references thereto shall be deemed to refer
to this Section 1.02 of Article 1 of this First Supplemental Indenture.

(b) The Securities shall be issuable only in registered form without coupons and only in
denominations of $1,000 principal amount and any integral multiple thereof.

(c) The Trustee shall act as the initial authenticating agent for the Securities.

(d) The Trustee shall authenticate and make available for delivery Securities for original
issue in the aggregate principal amount of $494,500,000 upon receipt of a written order or orders
of the Company signed by two Officers, at least one of whom shall be the principal executive
officer, principal financial officer or principal accounting officer of the Company (a “Company
Order”). The Company Order shall specify the amount of Securities to be authenticated, shall
provide that all such Securities will be represented by a Global Security and the date on which
each original issue of Securities is to be authenticated. The Company at any time or from time to
time may, without the consent of the Holders, issue additional Securities (“Additional
Securities”) under this Indenture having the same ranking, interest rate, maturity and other terms
and with the same CUSIP as the Securities initially issued hereunder in an unlimited aggregate
principal amount, and entitled to all of the benefits of this Indenture; provided that such
Additional Securities must be part of the same issue as the Securities initially hereunder for
U.S. federal income tax purposes. Such Additional Securities shall, together with the Securities
initially issued hereunder, constitute a single series of Securities under this Indenture,
including without limitation in determining the necessary Holders who may take the actions or
consent to the taking of actions as specified in this Indenture.

(e) Accrued interest on the Securities shall be computed on the basis of a 360-day year
composed of twelve 30-day months. The Person in whose name any Security (or its predecessor) is
registered on register of the Primary Registrar at the close of business on any Regular Record
Date with respect to any Interest Payment Date shall be entitled to receive the interest payable
on such Interest Payment Date. Interest shall be payable at the office or agency of the Company
maintained by the Company for such purposes, which shall initially be the Corporate Trust Office.
The Company shall pay interest (i) on any Certificated Securities (A) to Holders having an
aggregate principal amount of $2,000,000 or less, by check mailed to the Holders of these
Securities at their address as it appears in the register of the Primary Registrar and (B) to
Holders having an aggregate principal amount of more than $2,000,000, either by check mailed to
the Holders of these Securities or upon application by a Holder to
the Company and Trustee at least 10 Business Days prior to the
relevant payment date pursuant to Section 6.02, by wire transfer in immediately available funds to that
Holder’s account within the United States, which application shall remain in effect until the
Holder notifies, in writing, the Primary Registrar to the contrary or (ii) on any Global Security
by wire transfer of immediately available funds to the account of the Depositary or its nominee.

(f) Any Defaulted Amounts shall forthwith cease to be payable to the Holder on the relevant
payment date by virtue of its having been such Holder but shall accrue interest per annum at the
rate borne by the Securities plus one percent, subject to the enforceability thereof under
applicable law, from, and including, such relevant payment date to, but excluding, the date on
which such Defaulted Amounts shall have been paid by the Company, at its election in each case, as
provided in subsection (i) or (ii) below:

(i) The Company may elect to make payment of any Defaulted Amounts to the Persons in
whose names the Securities (or their respective predecessor Securities) are registered at
the close of business on a special record date for the payment of such Defaulted Amounts,
which shall be fixed in the following manner. The Company shall notify the Trustee in
writing of the amount of the Defaulted Amounts proposed to be paid on each Security and the
date of the proposed payment (which shall be not less than 25 days after the receipt by the
Trustee of such notice, unless the Trustee shall consent to an

 

3

 

earlier date), and at the same time the Company shall deposit with the Trustee an
amount of money equal to the aggregate amount to be paid in respect of such Defaulted
Amounts or shall make arrangements satisfactory to the Trustee for such deposit on or prior
to the date of the proposed payment, such money when deposited to be held in trust for the
benefit of the Persons entitled to such Defaulted Amounts as in this clause provided.
Thereupon the Company shall fix a special record date for the payment of such Defaulted
Amounts which shall be not more than 15 days and not less than 10 days prior to the date of
the proposed payment, and not less than 10 days after the receipt by the Trustee of the
notice of the proposed payment. The Company shall promptly notify the Trustee of such
special record date and the Trustee, in the name and at the expense of the Company, shall
cause notice of the proposed payment of such Defaulted Amounts and the special record date
therefor to be mailed, first-class postage prepaid, to each Holder at its address as it
appears in the register of the Primary Registrar, not less than 10 days prior to such
special record date. Notice of the proposed payment of such Defaulted Amounts and the
special record date therefor having been so mailed, such Defaulted Amounts shall be paid to
the Persons in whose names the Securities (or their respective predecessor Securities) are
registered at the close of business on such special record date and shall no longer be
payable pursuant to the following subsection (ii) of this Section 1.02(f).

(ii) The Company may make payment of any Defaulted Amounts in any other lawful manner
not inconsistent with the requirements of any securities exchange or automated quotation
system on which the Securities 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.

ARTICLE 2

DEFINITIONS AND INCORPORATION BY REFERENCE

Section 2.01. General. All the terms contained in this First Supplemental Indenture shall,
except as specifically provided herein or except as the context may otherwise require, have the
meaning given to such terms in the Original Indenture. In the events of any inconsistency between
the Original Indenture and this First Supplemental Indenture, this First Supplemental Indenture
shall govern. References to “this Indenture” or “the Indenture” in this First Supplemental
Indenture shall mean the Original Indenture, as supplemented by this First Supplemental Indenture,
as amended or supplemented from time to time pursuant to the term hereof. The words “herein,”
“hereof,” “hereunder,” and words of similar import shall refer to this First Supplemental
Indenture.

Except as specifically set forth herein in Article 9 and Sections 3.10, 12.09 and 12.10, the
changes, modifications and supplements to the Base Indenture effected by this First Supplemental
Indenture shall be applicable only with respect to, and shall only govern the terms of, the
Securities, including any Additional Securities, which may be issued from time to time pursuant to
this First Supplemental Indenture, and shall not apply to any other Debt Securities that may be
issued under the Base Indenture unless a supplemental indenture with respect to such other Debt
Securities specifically incorporates such changes, modifications and supplements. The provisions
of this First Supplemental Indenture shall supersede any corresponding provisions in the Base
Indenture, including for the purposes of the Trust Indenture Act.

Section 2.02. Definitions. For all purposes of this Indenture, except as otherwise expressly
provided herein or unless the context otherwise requires:

“Additional Interest” means all amounts, if any, payable pursuant to Section 8.05.

“Additional Shares” has the meaning defined in Section 5.04(a) hereof.

“Additional Securities” has the meaning defined in Section 1.02(d) hereof.

 

4

 

“Affiliate” means, with respect to any specified Person, 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
Person, means the power to direct 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.

“Agent” means any Registrar, Paying Agent or Conversion Agent.

“Agent Members” has the meaning defined in Section 1.01(d) hereof.

“Applicable Procedures” means, with respect to any transfer or exchange of beneficial
ownership interests in a Global Security, the rules and procedures of the Depositary, in each case
to the extent applicable to such transfer or exchange.

“Bankruptcy Law” means Title 11, U.S. Code, or any similar federal or state law for the relief
of debtors..

“Bid Solicitation Agent” means the Person appointed by the Company to solicit bids for the
Trading Price of the Securities in accordance with Section 5.01(c). The Trustee shall initially act
as the Bid Solicitation Agent.

“Board of Directors” means either the board of directors of the Company or any committee of
the Board of Directors authorized to act for it with respect to this Indenture.

“Capital Stock” of any Person means (a) in the case of a corporation, corporate stock of such
Person, (b) in the case of an association or business entity, shares, interests, participations,
rights or other equivalents (however designated) of corporate stock of such Person, (c) in the case
of a partnership or limited liability company, partnership or membership interests (whether general
or limited) of such Person and (d) in the case of any other legal form, any other interest or
participation of such Person that confers the right to receive a share of the profits and losses
of, or distribution of assets of, such Person.

“Cash” or “cash” means such coin or currency of the United States as at any time of payment is
legal tender for the payment of public and private debts.

“Cash Settlement” has the meaning defined in Section 5.02(a) hereof.

“Certificated Security” means a Security that is in substantially the form attached hereto as
Exhibit A and that does not include the text or the schedule called for by footnotes 1
through 5 thereof.

“Clause A Distribution” has the meaning defined in Section 5.05(c) hereof.

“Clause B Distribution” has the meaning defined in Section 5.05(c) hereof.

“Clause C Distribution” has the meaning defined in Section 5.05(c) hereof.

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

“Combination Settlement” has the meaning defined in Section 5.02(a) hereof.

“Company Order” has the meaning defined in Section 1.02(d) hereof.

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

 

5

 

“Common Stock” means the common stock of the Company, $0.01 par value per share, subject to
Section 5.07.

“Conversion Agent” has the meaning defined in Section 3.02 hereof.

“Conversion Date” has the meaning defined in Section 5.02(c) hereof.

“Conversion Notice” has the meaning defined in Section 5.02(b) hereof.

“Conversion Obligation” has the meaning defined in Section 5.01(a) hereof.

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

“Conversion Rate” has the meaning defined in Section 5.01(a) hereof.

“Daily Conversion Value” means, for each of the 25 consecutive Trading Days during the
Observation Period, 4% of the product of:

(a) the Conversion Rate on such Trading Day; and

(b) the Daily VWAP of the Common Stock on such Trading Day.

“Daily Measurement Value” means the Specified Dollar Amount (if any), divided by 25.

“Daily Settlement Amount,” for each of the 25 consecutive Trading Days during the Observation
Period, shall consist of:

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

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

“Daily VWAP” means, for each of the 25 consecutive Trading Days during the applicable
Observation Period, the per share volume-weighted average price as displayed under the heading
“Bloomberg VWAP” on Bloomberg page “HGSI <equity> AQR” (or its equivalent successor if such
page is not available) in respect of the period from the scheduled open of trading until the
scheduled close of trading of the primary trading session on such Trading Day (or if such
volume-weighted average price is unavailable, the market value of one share of Common Stock on such
Trading Day determined, using a volume-weighted average method, by a nationally recognized
independent investment banking firm retained for this purpose by the Company). The “Daily VWAP”
shall be determined without regard to after-hours trading or any other trading outside of the
regular trading session trading hours.

“Default” or “default” means, when used with respect to the Securities, any event that is or,
after notice or passage of time or both, would be an Event of Default.

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

“Depositary” has the meaning defined in Section 1.01(d) hereof.

“Distributed Property” has the meaning defined in Section 5.05(c) hereof.

 

6

 

“DTC” has the meaning defined in Section 1.01(d) hereof.

“Effective Date” has the meaning defined in Section 5.04(c) hereof.

“Event of Default” has the meaning defined in Section 8.02 hereof.

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

“First Supplemental Indenture” means this First Supplemental Indenture as amended or
supplemented from time to time pursuant to the terms of this First Supplemental Indenture.

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

(a) the Common Stock (or other common stock or American Depositary Receipts
representing common stock into which the Securities are then convertible) ceases to be
listed on any of The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ
Global Market (or any of their respective successors);

(b) any Person, including any syndicate or group deemed to be a “person” under Section
13(d)(3) of the Exchange Act, acquires beneficial ownership, directly or indirectly, through
a purchase, merger or other acquisition transaction or series of transactions, of shares of
the Company’s Capital Stock entitling the Person to exercise 50% or more of the total voting
power of all shares of the Company’s Capital Stock entitled to vote generally in elections
of directors, other than an acquisition by the Company, any of its Subsidiaries and any of
its employee benefit plans;

(c) the Company merges or consolidates with or into any other Person (other than one of
its Subsidiaries), another Person merges or consolidates with or into the Company, or the
Company conveys, sells, transfers or leases all or substantially all of its assets to
another Person in one transaction or a series of related transactions, other than any
transaction:

(i) that does not result in a reclassification, conversion, exchange or
cancellation of the outstanding Common Stock; or

(ii) pursuant to which the holders of all classes of the Company’s Common
Equity immediately prior to the transaction have the entitlement to exercise,
directly or indirectly, 50% or more of the total voting power of all classes of the
Capital Stock of the continuing or surviving entity or transferee or parent thereof
entitled to vote generally in the election of directors or managers of the
continuing or surviving entity or transferee or parent thereof immediately after the
transaction in substantially the same proportions as such entitlement immediately
prior to such transaction; or

(d) the Company’s stockholders approve any plan or proposal for the liquidation or
dissolution of the Company;

provided, however, that a transaction or transactions described in clause (b) or (c) above shall
not constitute a Fundamental Change and Holders shall not have the right to require the Company to
repurchase any Securities (and the Company shall not be required to deliver the Fundamental Change
Repurchase Right Notice incidental thereto) if at least 90% of the consideration paid for the
Common Stock (excluding cash payments for fractional shares and cash payments made pursuant to
dissenters’ or appraisal rights) in a merger or consolidation or a conveyance, sale, transfer or
lease otherwise constituting a Fundamental Change under clause (b) and/or clause (c) above consists
of shares of common stock (or American Depositary Receipts representing common stock) that are
listed on any of

 

7

 

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 traded or quoted immediately following such transaction
or transactions and, as a result of the transaction or transactions, the Securities become
convertible into such consideration, excluding cash payments for fractional shares and cash
payments made pursuant to dissenters’ or appraisal rights (subject to the settlement provisions of
Section 5.02); provided that, with respect to common stock or American Depositary Receipts
representing common stock of an entity organized under the laws of a jurisdiction outside the U.S.,
such entity has a worldwide market capitalization of its equity securities of at least
$5,000,000,000 before giving effect to the Fundamental Change (the exclusion described in the
foregoing “provided, however” clause, including the provisos thereto, the “Public Securities
Exclusion”). For purposes of this definition, whether a Person is a “beneficial owner” will be
determined in accordance with Rule 13d-3 under the Exchange Act, and “Person” includes any
syndicate or group that would be deemed to be a “person” under Section 13(d)(3) of the Exchange
Act.

“Fundamental Change Repurchase Date” has the meaning defined in Section 4.02(d) hereof.

“Fundamental Change Repurchase Price” has the meaning defined in Section 4.02(a) hereof.

“Fundamental Change Repurchase Right Notice” has the meaning defined in Section 4.02(b)
hereof.

“GAAP” means generally accepted accounting principles in the United States of America as in
effect as of the date of this Indenture, including those set forth in (1) the opinions and
pronouncements of the Accounting Principles Board of the American Institute of Certified Public
Accountants, (2) the statements and pronouncements of the Financial Accounting Standards Board, (3)
such other statements by such other entity as approved by a significant segment of the accounting
profession and (4) the rules and regulations of the SEC governing the inclusion of financial
statements (including pro forma financial statements) in registration statements filed under the
Securities Act and periodic reports required to be filed pursuant to Section 13 of the Exchange
Act, including opinions and pronouncements in staff accounting bulletins and similar written
statements from the accounting staff of the SEC.

“Global Security” means a permanent Global Security that is in substantially the form attached
hereto as Exhibit A and that includes the text and the schedule called for by footnotes 1
through 4 thereof and that is deposited with the Depositary or its custodian and registered in the
name of the Depositary or its nominee.

“Holder” means the Person in whose name a Security is registered on the Primary Registrar’s
books.

“Interest Payment Date” means each May 15 and November 15 of each year, beginning on May 15,
2012.

“Last Reported Sale Price” of the Common Stock on any date means:

(a) the closing sale price per share (or if no closing sale price is reported, the
average of the bid and ask prices or, if more than one in either case, the average of the
average bid and the average ask prices) on that date as reported in composite transactions
for the principal U.S. national or regional securities exchange on which the Common Stock is
traded;

(b) if the Common Stock is not listed for trading on a U.S. national or regional
securities exchange on the relevant date, the last quoted bid price for the Common Stock in
the over-the-counter market on the relevant date as reported by OTC Markets Group Inc. or a
similar organization; or

(c) if the Common Stock is not so quoted, the average of the mid-point of the last bid
and ask prices for the Common Stock on the relevant date from each of at least three
nationally recognized independent investment banking firms selected by the Company for this
purpose.

“Make-Whole Fundamental Change” means any transaction or event that constitutes a Fundamental
Change (as defined above in clause (b) or (c) of the definition thereof and determined after giving
effect to any
exceptions to or exclusions from such definition, but without regard to the carve-out set
forth in subclause (ii) of clause (c) of the definition thereof).

 

8

 

“Market Disruption Event” means:

(a) a failure by the primary United States national or regional securities exchange or
market on which the Common Stock is listed or admitted for trading to open for trading
during its regular trading session; or

(b) the occurrence or existence prior to 1:00 p.m., New York City time, on any
Scheduled Trading Day for the Common Stock for more than one half-hour period in the
aggregate during regular trading hours of any suspension or limitation imposed on trading
(by reason of movements in price exceeding limits permitted by the relevant stock exchange
or otherwise) in the Common Stock or in any options, contracts or future contracts relating
to the Common Stock.

“Maturity Date” means November 15, 2018.

“Measurement Period” has the meaning defined in Section 5.01(c) hereof.

“Merger Event” has the meaning defined in Section 5.07(a) hereof.

“Non-Separate Rights” has the meaning defined in Section 5.09 hereof.

“Observation Period” with respect to any Security surrendered for conversion means:

(a) if the relevant Conversion Date occurs prior to the 30th Scheduled Trading Day
immediately preceding the Maturity Date, the 25 consecutive Trading Day period beginning on,
and including, the third Trading Day after such Conversion Date; and

(b) if the relevant Conversion Date occurs on or after the 30th Scheduled Trading Day
immediately preceding the Maturity Date, the 25 consecutive Trading Days beginning on, and
including, the 27th Scheduled Trading Day immediately preceding the Maturity Date.

“Officer” means the Chairman of the Board, the Chief Executive Officer, the President, any
Vice President, the Chief Operating Officer, the Chief Financial Officer, the Treasurer, any
Assistant Treasurer, the Controller, the Secretary or any Assistant Secretary of the Company.

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

“Outstanding” means, when used with respect to the Securities, Securities that are
“outstanding” as provided in Section 3.06 hereof.

“Paying Agent” has the meaning defined in Section 3.02 hereof.

“Physical Settlement” has the meaning defined in Section 5.02(a) hereof.

“Primary Registrar” has the meaning defined in Section 3.02 hereof.

“Record Date” means, with respect to any dividend, distribution or other transaction or event
in which the holders of Common Stock (or other security) have the right to receive any cash,
securities or other property or in which the Common Stock (or other applicable security) is
exchanged for or converted into any combination of cash, securities or other property, the date
fixed for determination of stockholders entitled to receive such cash, securities or other property
(whether such date is fixed by the Board of Directors, by statute, by contract or otherwise).

“Reference Property” has the meaning defined in Section 5.07(a) hereof.

 

9

 

“Registrar” has the meaning defined in Section 3.02 hereof.

“Regular Record Date,” with respect to any Interest Payment Date, shall mean the May 1 or
November 1 (whether or not such day is a Business Day) immediately preceding the applicable May 15
or November 15 Interest Payment Date, respectively.

“Repurchase Exercise Notice” has the meaning defined in Section 4.02(c) hereof.

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

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

“Securities” has the meaning defined in the Recitals hereof.

“Securities Act” means the U.S. Securities Act of 1933, as amended, or any successor statute
or statues thereto, and the rules and regulations promulgated thereunder, as in effect from time to
time.

“Securities Custodian” means the Trustee, as custodian for DTC, with respect to the Securities
in global form, or any successor thereto.

“Settlement Amount” has the meaning defined in Section 5.02(a)(ii) hereof.

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

“Settlement Notice” has the meaning defined in Section 5.02(a)(i) hereof.

“Significant Subsidiary” means, in respect of any Person, a Subsidiary of such Person that
would constitute a “significant subsidiary”, as such term is defined in Rule 1-02 of Regulation S-X
under the Exchange Act.

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

“Spin-Off” has the meaning defined in Section 5.05(c) hereof.

“Stock Price” has the meaning defined in Section 5.04(c) hereof.

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

“Trading Day” means a day on which:

(a) trading in the Common Stock generally occurs on The NASDAQ Global Select Market or,
if the Common Stock is not then listed on The NASDAQ Global Select Market, on the principal
other U.S. national or regional securities exchange on which the Common Stock is then listed
or, if the Common Stock is not then listed on a U.S. national or regional securities
exchange, on the principal other market on which the Common Stock is then traded; and

(b) a Last Reported Sale Price for the Common Stock is available on such securities
exchange or market;

 

10

 

provided that if the Common Stock is not so listed or traded, “Trading Day” means a Business Day;
and provided, further, that for purposes of determining amounts due upon conversion only, “Trading
Day” means a day on which:

(i) there is no Market Disruption Event; and

(ii) trading in the Common Stock generally occurs on The NASDAQ Global Select Market
or, if the Common Stock is not then listed on The NASDAQ Global Select Market, on the
principal other U.S. national or regional securities exchange on which the Common Stock is
then listed or, if the Common Stock is not then listed on a U.S. national or regional
securities exchange, on the principal other market on which the Common Stock is then listed
or admitted for trading, except that if the Common Stock is not so listed or admitted for
trading, “Trading Day” means a Business Day.

“Trading Price” of the Securities on any date of determination means the average of the
secondary market bid quotations provided to the Bid Solicitation Agent for $5,000,000 principal
amount of Securities at approximately 3:30 p.m., New York City time, on such determination date by
three independent nationally recognized securities dealers the Company selects; provided that if
three such bids cannot reasonably be provided to the Bid Solicitation Agent but two such bids are
provided, then the average of the two bids shall be used, and if only one such bid can reasonably
be provided to the Bid Solicitation Agent, that one bid shall be used. If the Bid Solicitation
Agent cannot reasonably be provided with at least one bid for $5,000,000 principal amount of
Securities from a nationally recognized securities dealer, then the Trading Price per $1,000
principal amount of Securities shall be deemed to be less than 98% of the product of the Last
Reported Sale Price of the Common Stock and the Conversion Rate on such Trading Day. If (i) the
Company is not acting as the Bid Solicitation Agent, and the Company does not, when it is required
to do so, instruct the Bid Solicitation Agent to obtain bids, or if the Company gives such
instruction to the Bid Solicitation Agent and the Bid Solicitation Agent fails to make such
determination; or (ii) if the Company is acting as Bid Solicitation Agent and it fails to make such
determination, then, in either case, the Trading Price per $1,000 principal amount of Securities
will be deemed to be less than 98% of the product of the Last Reported Sale Price of Common Stock
and the Conversion Rate for each Trading Day on which such failure occurs.

“Trigger Event” has the meaning defined in Section 5.05(c) hereof.

“unit of Reference Property” has the meaning defined in Section 5.07(a) hereof.

“Valuation Period” has the meaning defined in Section 5.05(c) hereof.

Section 2.03. Trust Indenture Act Provisions. Whenever this Indenture refers to a provision of
the Trust Indenture Act, that provision is incorporated by reference in and made a part of this
Indenture. The Indenture shall also include those provisions of the Trust Indenture Act required to
be included herein by the provisions of the Trust Indenture Reform Act of 1990. The following Trust
Indenture Act terms used in this Indenture have the following meanings:

“indenture securities” means the Securities;

“indenture security holder” means a Holder;

“indenture to be qualified” means this Indenture; and

“indenture trustee” or “institutional trustee” means the Trustee; and “obligor” on the
indenture securities means the Company or any other obligor on the Securities.

All other terms used in this Indenture that are defined in the Trust Indenture Act, defined by
Trust Indenture Act reference to another statute or defined by any SEC rule and not otherwise
defined herein have the meanings assigned to them therein.

 

11

 

Section 2.04. Rules of Construction. Unless the context otherwise requires:

(a) a term has the meaning assigned to it;

(b) an accounting term not otherwise defined has the meaning assigned to it in accordance
with GAAP;

(c) words in the singular include the plural, and words in the plural include the singular;

(d) provisions apply to successive events and transactions;

(e) the term “merger” includes a statutory share exchange and the term “merged” has a
correlative meaning;

(f) the masculine gender includes the feminine and the neuter;

(g) references to agreements and other instruments include subsequent amendments thereto; and

(h) “herein,” “hereof” and other words of similar import refer to this First Supplemental
Indenture as a whole and not to any particular Article, Section or other subdivision.

Section 2.05. References to Additional Interest. Unless the context otherwise requires, any
reference to interest on, or in respect of, any Security in this Indenture shall be deemed to
include Additional Interest if, in such context, Additional Interest is, was or would be payable
pursuant to Section 8.05. Unless the context otherwise requires, any express mention of Additional
Interest in any provision hereof shall not be construed as excluding Additional Interest in those
provisions hereof where such express mention is not made.

ARTICLE 3

THE SECURITIES

Section 3.01. General. Sections 2.05(c), 2.08 and 2.11 of Article II and Section 4.03 of Article IV
of the Original Indenture shall not apply to, and have no force and effect with respect to, the
Securities and Sections 2.05(c), 2.08 and 2.11 of Article II and Section 4.03 of Article IV of the
Original Indenture shall be superseded by and references thereto shall be deemed to refer to
Section 3.05(a), 3.08, 3.09 and Section 3.02 of this Article 3, respectively, of this First
Supplemental Indenture.

Section 3.02. Registrar, Paying Agent and Conversion Agent. The Company shall maintain one or
more Security Registrars (each, a “Registrar”), one or more offices or agencies where Securities
may be presented for payment (each, a “Paying Agent”), one or more offices or agencies where
Securities may be presented for conversion (each, a “Conversion Agent”) and one or more offices or
agencies where notices and demands to or upon the Company in respect of the Securities and this
Indenture may be served. The Company will at all times maintain a Paying Agent, Conversion Agent,
Registrar and an office or agency where notices and demands to or upon the Company in respect of
the Securities and this Indenture may be served in Pittsburgh, Pennsylvania. One of the Registrars
(the “Primary Registrar”) shall keep a register of the Securities and of their registration of
transfer and exchange. The Company shall give prompt written notice to the Trustee of the location,
and any change in the location, of such office or agency.

The Company shall enter into an appropriate agency agreement with any Agent not a party to
this Indenture. The agreement shall implement the provisions of this Indenture that relate to such
Agent. The Company shall give prompt written notice to the Trustee of the name and address of any
Agent not a party to this Indenture. If the Company fails to maintain a Registrar, Paying Agent,
Conversion Agent or agent for service of notices and demands in any place required by this
Indenture, or fails to give the foregoing notice, the Trustee shall act as such. The Company or any
Affiliate of the Company may act as Paying Agent (except for the purposes of Section 6.02 and
Article 10).

 

12

 

The Company hereby initially designates the Trustee as Paying Agent, Primary Registrar,
Securities Custodian and Conversion Agent and each of the Corporate Trust Office of the Trustee and
the office or agency of the Trustee in Pittsburgh, Pennsylvania, as an office or agency of the
Company for each of the aforesaid purposes.

Section 3.03. Paying Agent to Hold Money in Trust. Prior to 11:00 a.m., New York City time, on
each due date of the principal of or interest on any Securities, the Company shall deposit with a
Paying Agent a sum sufficient to pay such principal or interest so becoming due. A Paying Agent
shall hold in trust for the benefit of the Holders or the Trustee all money held by the Paying
Agent for the payment of principal of or interest on the Securities, and shall notify the Trustee
of any default by the Company (or any other obligor on the Securities) in making any such payment.
If the Company or an Affiliate of the Company acts as Paying Agent, it shall, before 11:00 a.m.,
New York City time, on each due date of the principal of or interest on any Securities, segregate
the money and hold it as a separate trust fund for the benefit of the Holders. The Company at any
time may require a Paying Agent to pay all money held by it to the Trustee, and the Trustee may at
any time during the continuance of any default, upon written request to a Paying Agent, require
such Paying Agent to pay forthwith to the Trustee all sums so held in trust by such Paying Agent.
Upon doing so, the Paying Agent (other than the Company) shall have no further liability for the
money.

Section 3.04. Holders. The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of the Holders, and the
Trustee shall otherwise comply with Trust Indenture Act Section 312(a). If the Trustee is not the
Primary Registrar, the Company shall furnish to the Trustee at least seven Business Days before
each semiannual interest payment date, and at such other times as the Trustee may request in
writing, a list in such form and as of such date as the Trustee may reasonably require of the names
and addresses of the Holders, and the Company shall otherwise comply with Trust Indenture Act
Section 312(a).

Section 3.05. Transfer and Exchange.

(a) No service charge shall be made for any exchange or registration of transfer of
Securities but the Company may require payment of a sum sufficient to cover any tax or other
governmental charge in relation thereto, other than exchanges pursuant to Section 4.06, Section
5.02(d), or Section 11.05 of this First Supplemental Indenture or Sections 2.06 or 2.07 of the
Original Indenture not involving any transfer. The provisions of this Section 3.05(a) and Section
2.05 of the Original Indenture are, with respect to any Global Security, subject to Section 3.09
hereof

Neither the Company, any Registrar nor the Trustee shall be required to exchange or register a
transfer of any Securities or portions thereof in respect of which a Repurchase Exercise Notice
pursuant to Section 4.02(c) has been delivered and not withdrawn by the Holder thereof (except, in
the case of the purchase of a Security in part, the portion thereof not to be purchased).

Section 3.06. Outstanding Securities. Securities outstanding at any time are all Securities
authenticated by the Trustee, except for those canceled by it, those converted pursuant to Article
5, those delivered to it for cancellation or surrendered for transfer or exchange and those
described in this Section 3.06 as not outstanding.

If a Security is replaced pursuant to Section 2.07 of the Original Indenture, it ceases to be
outstanding unless the Trustee receives proof satisfactory to it that the replaced Security is held
by a protected purchaser.

If a Paying Agent (other than the Company or an Affiliate of the Company) holds on the
Maturity Date money sufficient to pay the principal of and accrued interest on Securities (or
portions thereof) payable on that date, then on and after such Maturity Date such Securities (or
portions thereof, as the case may be) shall cease to be outstanding and interest on them shall
cease to accrue.

Subject to the restrictions contained in Section 8.04 of the Original Indenture, a Security
does not cease to be outstanding because the Company or an Affiliate of the Company holds the
Security.

 

13

 

Section 3.07. Treasury Securities. In determining whether the Holders of the required
principal amount of Securities have concurred in any notice, direction, waiver or consent,
Securities owned by the Company or any other obligor on the Securities or by any Affiliate of the
Company or of such other obligor shall be disregarded, except that, for purposes of determining
whether the Trustee shall be protected in relying on any such notice, direction, waiver or consent,
only Securities that a Responsible Officer of the Trustee actually knows are so owned shall be so
disregarded. Securities so owned that have been pledged in good faith shall not be disregarded if
the pledgee establishes to the satisfaction of the Trustee the pledgee’s right so to act with
respect to the Securities and that the pledgee is not the Company or any other obligor on the
Securities or any Affiliate of the Company or of such other obligor.

Section 3.08. Cancellation; Repurchase. The Company shall cause all Securities surrendered for
the purpose of payment, repurchase, registration of transfer or exchange or conversion, if
surrendered to any Person other than the Trustee (including any of the Company’s Agents,
Subsidiaries or Affiliates), to be delivered to the Trustee for cancellation. The Registrar, the
Paying Agent and the Conversion Agent shall forward to the Trustee or its agent any Securities
surrendered to them for registration of transfer, exchange, redemption, payment or conversion. The
Trustee and no one else shall promptly cancel, in accordance with its standard procedures, all
Securities surrendered for the purpose of payment, repurchase, registration of transfer, exchange,
conversion or cancellation and shall dispose of canceled Securities (subject to the record
retention requirements of the Exchange Act), in accordance with its standard procedures, and no
Securities shall be authenticated in exchange thereof except as expressly permitted by any of the
provisions of this Indenture. The Company may not hold or resell such Securities or issue new
Securities to replace Securities that it has purchased or otherwise acquired or that have been
delivered to the Trustee for cancellation.

The Company may, to the extent permitted by law, and directly or indirectly (regardless of
whether such Securities are surrendered to the Company), repurchase Securities in the open market,
by tender offer or exchange offer, by private agreement through counterparties or otherwise,
whether by the Company or its Subsidiaries, including by cash-settled swaps or other derivatives
and, in each case, at any price. The Company shall cause any Securities so purchased (other than
Securities repurchased pursuant to cash-settled swaps or other derivatives) to be surrendered to
the Trustee for cancellation in accordance with this Section 3.08, and they shall no longer be
considered outstanding under this Indenture upon their repurchase. Any Securities held by the
Company or one of its Subsidiaries shall be disregarded for voting purposes in connection with any
notice, waiver, consent or direction requiring the vote or concurrence of Holders.

Section 3.09. Additional Transfer and Exchange Requirements. A Global Security may not be
transferred, in whole or in part, to any Person other than the Depositary or a nominee or any
successor thereof, and no such transfer to any such other Person may be registered; provided that
the foregoing shall not prohibit any transfer of a Security that is issued in exchange for a Global
Security but is not itself a Global Security. No transfer of a Security to any Person shall be
effective under this Indenture or the Securities unless and until such Security has been registered
in the name of such Person. Notwithstanding any other provisions of this Indenture or the
Securities, transfers of a Global Security, in whole or in part, shall be made only in accordance
with this Section 3.09.

(a) The provisions of subsections (i), (ii), (iii) and (iv) below shall apply only to Global
Securities:

(i) Notwithstanding any other provisions of this Indenture or the Securities, a Global
Security shall not be exchanged in whole or in part for a Security registered in the name of
any Person other than the Depositary or one or more nominees thereof; provided that a Global
Security may be exchanged for Certificated Securities registered in the names of any Person
designated by the Depositary in the event that (A) the Depositary has notified the Company
that it is unwilling or unable to continue as Depositary for such Global Security or the
Depositary has ceased to be a “clearing agency” registered under the Exchange Act, and a
successor Depositary is not appointed by the Company within 90 days or (B) an Event of
Default has occurred and is continuing and a beneficial owner requests that its Securities
be exchanged for Certificated Securities. Any Global Security exchanged pursuant to clause
(A) above shall be so exchanged in whole and not in part, and any Global Security exchanged
pursuant to clause (B) above may be exchanged in whole or from time to time in part as
directed by the Depositary. Any Security issued in exchange for a Global Security or any
portion thereof shall be a Global Security; provided that any such
Security so issued that is registered in the name of a Person other than the Depositary
or a nominee thereof shall not be a Global Security.

 

14

 

(ii) Securities issued in exchange for a Global Security or any portion thereof shall
be issued in fully-registered book-entry form, without interest coupons, shall have an
aggregate principal amount equal to that of such Global Security or portion thereof to be so
exchanged, shall be registered in such names and be in such authorized denominations as the
Depositary shall designate and shall bear any applicable legend provided for herein. Any
Global Security to be exchanged in whole shall be surrendered by the Depositary to the
Trustee, as Registrar. With regard to any Global Security to be exchanged in part, either
such Global Security shall be so surrendered for exchange or, if the Trustee is acting as
Securities Custodian for the Depositary or its nominee with respect to such Global Security,
the principal amount thereof shall be reduced, by an amount equal to the portion thereof to
be so exchanged, by means of an appropriate adjustment made on the records of the Trustee.
Upon any such surrender or adjustment, the Trustee shall authenticate and deliver the
Security issuable on such exchange to or upon the order of the Depositary or an authorized
representative thereof; provided, however, that any Global Security surrendered for exchange
shall be duly endorsed or accompanied by a written instrument of transfer in accordance with
Section 2.05(b) of the Original Indenture.

(iii) Subject to the provisions of subsection (v) below, the registered Holder may
grant proxies and otherwise authorize any Person, including Agent Members and Persons that
may hold interests through Agent Members, to take any action which a Holder is entitled to
take under this Indenture or the Securities.

(iv) In the event of the occurrence of any of the events specified in subsection (i)
above, the Company will promptly make available to the Trustee a reasonable supply of
Certificated Securities in definitive, fully registered form, without interest coupons.

(v) Neither Agent Members nor any other Persons on whose behalf Agent Members may act
shall have any rights under this Indenture with respect to any Global Security registered in
the name of the Depositary or any nominee thereof, or under any such Global Security, and
the Depositary or such nominee, as the case may be, may be treated by the Company, the
Trustee and any agent of the Company or the Trustee as the absolute owner and holder of such
Global Security for all purposes whatsoever. Notwithstanding the foregoing, nothing herein
shall prevent the Company, the Trustee or any agent of the Company or the Trustee from
giving effect to any written certification, proxy or other authorization furnished by the
Depositary or such nominee, as the case may be, or impair, as between the Depositary, its
Agent Members and any other Person on whose behalf an Agent Member may act, the operation of
customary practices of such Persons governing the exercise of the rights of a holder of any
Security.

(b) In the event that Certificated Securities are issued in exchange for beneficial interests
in Global Securities and, thereafter, the events or conditions specified in Section 3.09(a)(i)
that required such exchange shall cease to exist, the Company shall deliver notice to the Trustee
and to the Holders stating that Holders may exchange Certificated Securities for interests in
Global Securities by complying with the procedures set forth in this Indenture and briefly
describing such procedures and the events or circumstances requiring that such notice be given.
Thereafter, if Certificated Securities are presented by a Holder to a Registrar with a request:

(i) to register the transfer of such Certificated Securities to a Person who will take
delivery thereof in the form of a beneficial interest in a Global Security; or

(ii) to exchange such Certificated Securities for an equal principal amount of
beneficial interests in a Global Security, which beneficial interests will be owned by the
Holder transferring such Certificated Securities,

the Registrar shall register the transfer or make the exchange as requested by canceling such
Certificated Securities and causing, or directing the Securities Custodian to cause, the aggregate
principal amount of the applicable Global Security to be increased accordingly and, if no such
Global Security is then outstanding, the Company shall issue and the Trustee, upon receipt of a
Company Order, shall authenticate and deliver a new Global Security; provided, however, that the
Certificated Securities presented or surrendered for registration of transfer or exchange shall be
duly endorsed or accompanied by a written instrument of transfer in accordance with Section 2.05(b)
of the Original Indenture.

 

15

 

Section 3.10. CUSIP Numbers. Article II of the Original Indenture is hereby supplemented by
adding the provisions of the following paragraph to the end of Article II of the Original Indenture
as Section 2.12 thereof, and notwithstanding anything to the contrary contained in this First
Supplemental Indenture, such provisions of the following paragraph shall apply with respect to all
Debt Securities issued under the Original Indenture, including, for the avoidance of doubt, the
Securities:

“Section 2.12 CUSIP Numbers: The Company in issuing the Securities may use one or more
“CUSIP” numbers (if then generally in use), and, if so, the Trustee shall use “CUSIP”
numbers in notices as a convenience to Holders; provided that any such notice may state that
no representation is made as to the correctness of such numbers either as printed on the
Securities or as contained in any notice and that reliance may be placed only on the other
identification numbers printed on the Securities, and any such notice or related action by
the Company contemplated thereby shall not be affected by any defect in or omission of such
numbers. The Company will promptly notify the Trustee of any change in the “CUSIP” numbers.”

ARTICLE 4

NO REDEMPTION; REPURCHASE UPON A FUNDAMENTAL CHANGE

Section 4.01. No Optional Redemption. The Company shall not have the option to redeem the
Securities prior to the Maturity Date. No sinking fund is provided for the Securities. Accordingly,
Article III of the Original Indenture shall not apply to, and have no force and effect with respect
to, the Securities.

Section 4.02. Repurchase At Option of The Holder Upon A Fundamental Change.

(a) Subject to the satisfaction of the requirements of this Article 4, if a Fundamental
Change occurs at any time prior to the Maturity Date, each Holder shall have the right to require
the Company to repurchase for cash their Securities, or any portion of the principal amount
thereof that is equal to $1,000 or integral multiples of $1,000 in excess thereof at a repurchase
price (the “Fundamental Change Repurchase Price”) equal to 100% of the principal amount of the
Securities to be repurchased plus accrued and unpaid interest, if any, to, but excluding, the
Fundamental Change Repurchase Date (unless such Fundamental Change Repurchase Date falls after a
Regular Record Date and on or prior to the corresponding Interest Payment Date, in which case the
Company shall pay the full amount of accrued and unpaid interest payable on such Interest Payment
Date to the Holder of record at the close of business on such Regular Record Date and the
Fundamental Change Repurchase Price shall be equal to 100% of the principal amount of the
Securities to be repurchased).

The Company shall provide to the Holders of the Securities, the Trustee and the Conversion
Agent a notice (i) at least 35 Scheduled Trading Days prior to the
anticipated effective date of a Fundamental Change or (ii) if the Company does not have knowledge
of a Fundamental Change at least 35 Scheduled Trading Days prior to the anticipated effective date
of such transaction, within two Business Days of the earlier of (x) the date upon which the Company
receives, or otherwise becomes aware, of the anticipated effective date of such Fundamental Change
and (y) the actual effective date of such Fundamental Change.

(b) In addition to the notice required pursuant to Section 4.02(a), on or before the 15th
Business Day after the date on which a Fundamental Change becomes effective, the Company shall
provide to all Holders of the Securities, the Trustee and the Conversion Agent a notice of the occurrence of the Fundamental Change and of the resulting repurchase
right (the “Fundamental Change Repurchase Right Notice”). The Fundamental Change Repurchase Right
Notice shall state:

(i) the event or events giving rise to the Fundamental Change;

(ii) if the Fundamental Change also constitutes a Make-Whole Fundamental Change;

 

16

 

(iii) the Conversion Rate and any adjustments to the Conversion Rate;

(iv) the effective date of the Fundamental Change;

(v) the last date on which a Holder may exercise the repurchase right;

(vi) the Fundamental Change Repurchase Price;

(vii) the Fundamental Change Repurchase Date;

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

(ix) that the Securities with respect to which a Repurchase Exercise Notice has been
given by the Holder may be converted only if the Holder withdraws the Repurchase Exercise
Notice as described in Section 4.02(c); and

(x) the procedures that Holders must follow to require the Company to repurchase their
Securities.

Simultaneously with providing the Fundamental Change Repurchase Right Notice, the Company
shall issue a press release and publish the information through a public medium customary for such
press releases.

(c) To exercise the repurchase right in connection with a Fundamental Change, a Holder must
deliver, prior to the close of business, on the second Business Day immediately preceding the
Fundamental Change Repurchase Date, the Securities to be purchased to the Paying Agent, duly
endorsed for transfer, or effect book-entry transfer of the Securities to the Paying Agent,
together with a written notice exercising its right to require the Company to repurchase its
Securities or a portion thereof (a “Repurchase Exercise Notice”), substantially in the form
included in Exhibit A hereto, duly completed, to the Paying Agent. The Repurchase Exercise
Notice must state:

(i) if the Securities are Certificated Securities, the certificate numbers of the
Securities to be delivered for repurchase;

(ii) the portion of the principal amount of the Securities to be repurchased, which
must be equal to $1,000 or integral multiples of $1,000 in excess thereof; and

(iii) that the Securities are to be repurchased by the Company as of the Fundamental
Change Repurchase Date pursuant to the applicable provisions of the Securities and this
Indenture.

If the Securities are Global Securities, the Repurchase Exercise Notice must comply with the
Applicable Procedures.

A Holder may withdraw any Repurchase Exercise Notice (in whole or in part) by a written notice
of withdrawal delivered to the Paying Agent prior to the close of business on the second Business
Day prior to the Fundamental Change Repurchase Date. The notice of withdrawal must state:

(i) the principal amount of the Securities for which the Repurchase Exercise Notice has
been withdrawn;

(ii) if Certificated Securities have been issued, the certificate numbers of the
withdrawn Securities; and

(iii) the principal amount, if any, that remains subject to the Repurchase Exercise
Notice.

 

17

 

If the Securities are Global Securities, the withdrawal notice must comply with the Applicable
Procedures.

(d) The Company must repurchase on a date (the “Fundamental Change Repurchase Date”) chosen
by the Company that is no less than 20 and no more than 35 Business Days after the date of the
Fundamental Change Repurchase Right Notice with respect to the occurrence of the relevant
Fundamental Change, subject to extension to comply with applicable law. To receive payment of the
Fundamental Change Repurchase Price, a Holder must either effect book-entry transfer or deliver
the Securities, together with necessary endorsements, to the office of the Paying Agent after
delivery of the Repurchase Exercise Notice. Holders shall receive payment of the Fundamental
Change Repurchase Price on the later of (i) the Fundamental Change Repurchase Date and (ii) the
time of book-entry transfer or the delivery of the Securities. If the Paying Agent holds money
sufficient to pay the Fundamental Change Repurchase Price of the Securities on the Fundamental
Change Repurchase Date, then:

(i) the Securities will cease to be outstanding and interest, if any, will cease to
accrue (whether or not book-entry transfer of the Securities is made or whether or not the
Securities are delivered to the Paying Agent); and

(ii) all other rights of the Holder will terminate (other than the right to receive the
Fundamental Change Repurchase Price upon delivery or transfer of the Securities).

Section 4.03. Compliance With Securities Laws Upon Purchase of Securities. In connection with
any offer to purchase the Securities under Section 4.02, the Company shall comply with all tender
offer rules applicable to the Company under the Exchange Act. The Company shall:

(a) comply with the provisions of Rule 13e-4 and Rule 14e-l (or any successor to either such
Rule), if applicable, under the Exchange Act;

(b) file a Schedule TO (or any successor or similar schedule, form or report), if required,
under the Exchange Act; and

(c) otherwise comply with all federal and state securities laws in connection with such offer
by the Company to purchase the Securities upon a Fundamental Change, so as to permit the rights of
the Holders and obligations of the Company under Section 4.02 to be exercised in the time and in
the manner specified therein.

To the extent that the provisions of any securities laws or regulations conflict with the
provisions of Section 4.02, the Company shall comply with the applicable securities laws and
regulations and shall not be deemed to have breached its obligations under Section 4.02 by virtue
of such conflict.

Section 4.04. No Repurchase Upon Acceleration. No Securities may be repurchased on any date at
the option of Holders upon a Fundamental Change if the principal amount of the Securities has been
accelerated, and such acceleration has not been rescinded, on or prior to such date (except in the
case of an acceleration resulting from a Default by the Company in the payment of the Fundamental
Change Repurchase Price with respect to such Securities). The Paying Agent will promptly return to
the respective Holders thereof any Certificated Securities held by it following the acceleration of
the Securities (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 Securities), and any
instructions for book-entry transfer of the Securities in compliance with the procedures of the
Depositary shall be deemed to have been cancelled, and, upon such return or cancellation, as the
case may be, the Fundamental Change Repurchase Notice with respect thereto shall be deemed to have
been withdrawn.

Section 4.05. Repayment to the Company. To the extent that the aggregate amount of cash
deposited by the Company pursuant to Section 4.02 exceeds the aggregate Fundamental Change
Repurchase Price of the Securities or portions thereof that the Company is obligated to purchase,
then promptly after the Fundamental Change Repurchase Date, the Trustee or a Paying Agent, as the
case may be, shall return any such excess cash to the Company.

Section 4.06. Partial Repurchase. Upon surrender of a Security that is to be repurchased in
part pursuant to Section 4.02, the Company shall execute and the Trustee shall authenticate and
deliver to the Holder a
new Security in an authorized denomination equal in principal amount to the unrepurchased
portion of the Security surrendered.

 

18

 

ARTICLE 5

CONVERSION

Section 5.01. Conversion Rights.

(a) Subject to and upon compliance with the provisions of this Article 5, each Holder of a
Security shall have the right, at such Holder’s option, to convert all or any portion (if the
portion to be converted is $1,000 principal amount or an integral multiple thereof) of such
Security (i) subject to satisfaction of one or more of the conditions described in subsections (b)
through (e) of this Section 5.01, at any time prior to the close of business on the Business Day
immediately preceding August 15, 2018 under the circumstances and during the periods set forth in
subsections (b) through (e) of this Section 5.01, and (ii) irrespective of the conditions set
forth in subsections (b) through (e) of this Section 5.01, on or after August 15, 2018 and prior
to the close of business on the Business Day immediately preceding the Maturity Date, in each case
at an initial conversion rate of 75.0469 shares of Common Stock (subject to adjustment as provided
in Section 5.05, the “Conversion Rate”) per $1,000 principal amount of Securities (subject to the
settlement provisions of Section 5.02, the “Conversion Obligation”).

(b) Prior to the close of business on the Business Day immediately preceding August 15, 2018,
a Holder may surrender all or a portion of its Securities for conversion during any calendar
quarter commencing after the calendar quarter ending on December 31, 2011 (and only during such
calendar quarter), if the Last Reported Sale Price of the Common Stock for at least 20 Trading
Days (whether or not consecutive) during the period of 30 consecutive Trading Days ending on, and
including, the last Trading Day of the immediately preceding calendar quarter is greater than or
equal to 130% of the Conversion Price on each applicable Trading Day.

(c) Prior to the close of business on the Business Day immediately preceding August 15, 2018,
a Holder of the Securities may surrender its Securities for conversion during the five Business
Day period after any five consecutive Trading Day period (the “Measurement Period”) in which the
Trading Price per $1,000 principal amount of the Securities, as determined following a request by
a Holder of the Securities in accordance with the procedures described below, for each Trading Day
of the Measurement Period was less than 98% of the product of the Last Reported Sale Price of
Common Stock and the Conversion Rate on each such Trading Day.

The Bid Solicitation Agent (if other than the Company) shall have no obligation to determine
the Trading Price of the Securities unless the Company has requested such determination; and the
Company shall have no obligation to make such request (or, if the Company is acting as Bid
Solicitation Agent, it shall have no obligation to determine the Trading Price) unless a Holder of
the Securities requests in writing that the Company make such a determination and provides the
Company with reasonable evidence that the Trading Price per $1,000 principal amount of the
Securities would be less than 98% of the product of the Last Reported Sale Price of Common Stock
and the Conversion Rate. At such time, the Company shall instruct the Bid Solicitation Agent (if
other than the Company) to determine, or if the Company is acting as Bid Solicitation Agent, the
Company shall determine, the Trading Price per $1,000 principal amount of Securities beginning on
the next Trading Day and on each successive Trading Day until the Trading Price per $1,000
principal amount of Securities is greater than or equal to 98% of the product of the Last Reported
Sale Price of Common Stock and the Conversion Rate on such Trading Day.

If the Trading Price per $1,000 principal amount of Securities for each Trading Day of the
applicable Measurement Period was less than 98% of the product of the Last Reported Sale Price of
Common Stock and the Conversion Rate, the Company shall notify the Holders, the Trustee and the
Conversion Agent. If, at any time after the Trading Price per $1,000 principal amount of Securities
for each Trading Day of a Measurement Period was less than 98% of the product of the Last Reported
Sale Price of Common Stock and the Conversion Rate, the Trading Price per $1,000 principal amount
of Securities is greater than or equal to 98% of the product of the Last Reported Sale Price of
Common Stock and the Conversion Rate for such Trading Day, the Company shall notify the Holders,
the Trustee and the Conversion Agent.

 

19

 

(d) If, prior to the close of business on the Business Day immediately preceding August 15,
2018, the Company elects to:

(i) issue to all or substantially all holders of Common Stock any rights, options or
warrants entitling them, for a period of not more than 60 calendar days after the
announcement date of such issuance, to subscribe for or purchase shares of Common Stock at a
price per share that is less than the average of the Last Reported Sale Prices of the Common
Stock for the five consecutive Trading Day period ending on, and including, the Trading Day
immediately preceding the date of announcement of such issuance; or

(ii) distribute to all or substantially all holders of Common Stock, the Company’s
assets, debt securities 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 average of the Last Reported Sale Price of the Common Stock for the five consecutive
Trading Day period ending on, and including, the Trading Day immediately preceding the date
of announcement of such distribution,

then, in either case, the Company shall notify the Holders of the Securities at least 35 Scheduled
Trading Days prior to the Ex-Dividend Date for such issuance or distribution. Once the Company has
given such notice, Holders may surrender their Securities for conversion at any time until the
earlier of the close of business on the Business Day immediately preceding the Ex-Dividend Date for
such issuance or distribution and the Company’s announcement that such issuance or distribution
will not take place, even if the Securities are not otherwise convertible at such time.

(e) If a transaction or event that constitutes a Fundamental Change or Make-Whole Fundamental
Change (provided that a transaction exempted from such definition by the Public Securities
Exclusion shall constitute a Fundamental Change and Make-Whole Fundamental Change for purposes of
this section 5.01(e)) occurs prior to the close of business on the Business Day immediately
preceding August 15, 2018, regardless of whether a Holder of the Securities has the right to
require the Company to repurchase the Securities pursuant to Section 4.02, or if the Company is a
party to a consolidation, merger, binding share exchange, or transfer or lease of all or
substantially all of the Company’s assets, pursuant to which Common Stock would be converted into
cash, securities or other assets, the Securities may be surrendered for conversion at any time
from or after the date that is 35 Scheduled Trading Days prior to the anticipated effective date
of the transaction (or, if later, the Business Day after the Company gives notice of such
transaction) until 35 Trading Days after the actual effective date of such transaction or, if such
transaction also constitutes a Fundamental Change, until the related Fundamental Change Repurchase
Date. The Company shall notify the Holders, the Trustee and the
Conversion Agent (i) as promptly
as practicable following the date the Company publicly announces such transaction but in no event
less than 35 Scheduled Trading Days prior to the anticipated effective date of such transaction;
or (ii) if the Company does not have knowledge of such transaction at least 35 Scheduled Trading
Days prior to the anticipated effective date of such transaction, then within two Business Days of
the earlier of (x) the date upon which the Company receives notice, or otherwise becomes aware,
the anticipated effective date of such transaction and (y) the actual effective date of such
transaction.

Section 5.02. Settlement Upon Conversion; Conversion Procedures.

(a) Subject to this Section 5.02, Section 5.04 and Section 5.07, upon conversion of any
Security, the Company shall pay or deliver, as the case may be, to the converting Holder, in
respect of each $1,000 principal amount of Securities being converted cash (“Cash Settlement”),
shares of Common Stock, together with cash, if applicable, in lieu of any fractional share of
Common Stock in accordance with subsection (i) of this Section 5.02 (“Physical Settlement”) or a
combination of cash and shares of Common Stock, together with cash, if applicable, in lieu of any
fractional share of Common Stock in accordance with subsection (i) of this Section 5.02
(“Combination Settlement”), at its election, as set forth in this Section 5.02.

(i) All conversions occurring on or after August 15, 2018 shall be settled using the
same Settlement Method. Prior to August 15, 2018, the Company shall use the same Settlement
Method for all conversions occurring on the same Conversion Date, but the Company shall not
have any obligation to use the same Settlement Method with respect to conversions that occur
on different Trading Days. If, in respect of any Conversion Date (or with respect to the period beginning on, and including,
August 15, 2018 and ending on, and including, the Business Day immediately preceding the
Maturity Date, as the case may be), the Company elects to deliver a notice (the “Settlement
Notice”) of the relevant Settlement Method in

 

20

 

respect of such Conversion Date (or such
period, as the case may be), the Company, through the Trustee (upon request of the Company),
shall deliver such Settlement Notice to converting Holders no later than the close of
business on the second Trading Day immediately following the relevant Conversion Date (or,
in the case of any conversions occurring on or after August 15, 2018, no later than August
15, 2018). If the Company does not elect a Settlement Method prior to the deadline set forth
in the immediately preceding sentence, the Company shall no longer have the right to elect
Cash Settlement or Physical Settlement and the Company shall be deemed to have elected
Combination Settlement in respect of its Conversion Obligation, and the Specified Dollar
Amount per $1,000 principal amount of Securities shall be deemed to be $1,000. Such
Settlement Notice shall be prepared by the Company and shall specify the relevant Settlement
Method and, in the case of an election of Combination Settlement, the relevant Settlement
Notice shall indicate the Specified Dollar Amount. If the Company elects Combination
Settlement but does not timely notify converting Holders of the Specified Dollar Amount per
$1,000 principal amount of Securities, such Specified Dollar Amount will be deemed to be
$1,000.

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

(A) if the Company elects to satisfy its Conversion Obligation in respect of
such conversion by Physical Settlement, the Company shall deliver to the converting
Holder in respect of each $1,000 principal amount of Securities being converted a
number of shares of Common Stock equal to the Conversion Rate;

(B) if the Company elects to satisfy its Conversion Obligation in respect of
such conversion by Cash Settlement, the Company shall pay to the converting Holder
in respect of each $1,000 principal amount of Securities being converted cash in an
amount equal to the sum of the Daily Conversion Values for each of the 25
consecutive Trading Days during the related Observation Period; and

(C) if the Company elects (or is deemed to have elected) to satisfy its
Conversion Obligation in respect of such conversion by Combination Settlement, the
Company shall pay or deliver, as the case may be, in respect of each $1,000
principal amount of Securities being converted, a Settlement Amount equal to the sum
of the Daily Settlement Amounts for each of the 25 consecutive Trading Days during
the related Observation Period.

(iii) The Daily Settlement Amounts (if applicable) and the Daily Conversion Values (if
applicable) shall be determined by the Company promptly following the last day of the
Observation Period. Promptly after such determination of the Daily Settlement Amounts or the
Daily Conversion Values, as the case may be, and the amount of cash payable in lieu of any
fractional share, the Company shall notify the Trustee and the Conversion Agent of the Daily
Settlement Amounts or the Daily Conversion Values, as the case may be, and the amount of
cash payable in lieu of fractional shares of Common Stock.

(b) Subject to Section 5.02(e), before any Holder of a Security shall be entitled to convert a
Security as set forth above, such Holder shall:

(i) in the case of a Certificated Security:

(A) complete and deliver an irrevocable notice to the Conversion Agent as set
forth in the Form of Conversion Notice attached to the Form of Security set forth in
Exhibit A hereto (a “Conversion Notice”) at the office of the Conversion
Agent and state in writing therein the principal amount of Securities to be
converted and the name or names (with addresses) in which such Holder wishes the
certificate or certificates for any shares of Common Stock to be delivered upon
settlement of the Conversion Obligation to be registered;

 

21

 

(B) deliver such Security to the Conversion Agent;

(C) if required by the Conversion Agent, furnish appropriate endorsements and
additional transfer documents, to the Conversion Agent;

(D) if required, pay all transfer or similar taxes; and

(E) 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 subsection (g) of
this Section 5.02; and

(ii) in the case of a Global Security, comply with the Depositary’s procedures for
converting a beneficial interest in a Global Security and, if required, pay all taxes or
duties and funds equal to interest payable on the next Interest Payment Date to which such
Holder is not entitled as set forth in subsection (g) of this Section 5.02.

The Trustee (and, if different, the Conversion Agent) shall notify the Company of any
conversion pursuant to this Article 5 on the Conversion Date for such conversion. No Conversion
Notice with respect to any Securities may be surrendered by a Holder thereof if such Holder has
also delivered a Fundamental Change Repurchase Notice to the Company in respect of such Securities
and not validly withdrawn such Fundamental Change Repurchase Notice in accordance with Section
4.02(c).

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

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

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

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

 

22

 

(f) Upon the conversion of an interest in a Global Security, the Trustee, or the Securities
Custodian at the direction of the Trustee, shall reflect the reduction in the principal amount
represented thereby in the books
and records of the Trustee and Depository. The Company shall notify the Trustee in writing of
any conversion of Securities effected through any Conversion Agent other than the Trustee.

(g) Except as described below, the Company shall not make any separate cash payment for
accrued and unpaid interest, if any, upon conversion of Securities. The Company’s settlement of
the Conversion Obligation shall be deemed to satisfy in full its obligation to pay the principal
amount of the Security and accrued and unpaid interest, if any, attributable to the period from,
and including, the most recent Interest Payment Date to, but excluding, the Conversion Date. As a
result, accrued and unpaid interest, if any, to, but excluding, the Conversion Date shall be
deemed to be paid in full rather than cancelled, extinguished or forfeited. Upon a conversion of
Securities into a combination of cash and shares of Common Stock, accrued and unpaid interest
shall be deemed to be paid first out of the cash paid upon such conversion. Notwithstanding the
foregoing, if Securities are submitted for conversion after the close of business on a Regular
Record Date and prior to the open of business on the immediately following Interest Payment Date,
Holders of such Securities as of the close of business on such Regular Record Date shall receive
the full amount of interest payable on such Securities on such Interest Payment Date
notwithstanding the conversion, and Securities surrendered for conversion must be accompanied by
funds equal to the amount of interest payable on the principal amount of the Securities being
converted; provided that no such payment need be made:

(i) for conversions following the Regular Record Date immediately preceding the
Maturity Date;

(ii) if the Company has specified a Fundamental Change Repurchase Date that is after a
Regular Record Date and on or prior to the corresponding Interest Payment Date; or

(iii) to the extent of any overdue interest, if any overdue interest exist at the time
of conversion with respect to such Security.

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

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

(j) Each conversion shall be deemed to have been effected as to any Security surrendered for
conversion on the Conversion Date; provided, however, that the Person in whose name any shares of
Common Stock shall be issuable upon such conversion shall become the holder of record of such
 shares as of the close of business on the Conversion Date (in the case of Physical Settlement) or
the last Trading Day of the relevant Observation Period (if in the case of Combination
Settlement).

Section 5.03. Company to Provide Stock. The Company shall, prior to issuance of any Securities
hereunder, and from time to time as may be necessary, reserve, out of its authorized but unissued
Common Stock, a sufficient number of shares of Common Stock to permit the conversion of all
outstanding Securities into shares of Common Stock (assuming that at the time of computation of
such number of shares, all such Securities would be converted by a single Holder and that Physical
Settlement is applicable).

 

23

 

All shares of Common Stock delivered upon conversion of the Securities shall be newly issued
shares, shall be duly authorized, validly issued, fully paid and nonassessable and shall be free
from preemptive rights and free of any lien or adverse claim.

The Company shall endeavor promptly to comply with all federal and state securities laws
regulating the offer and delivery of shares of Common Stock upon conversion of Securities, if any,
and will list or cause to have quoted such shares of Common Stock on each national securities
exchange, over-the-counter market or such other market on which the Common Stock is then listed or
quoted; provided, however, that if rules of such automated quotation system or exchange permit the
Company to defer the listing of such Common Stock until the first conversion of the Securities into
Common Stock in accordance with the provisions of this Indenture, the Company covenants to list
such Common Stock issuable upon conversion of the Securities in accordance with the requirements of
such automated quotation system or exchange at such time.

Section 5.04. Adjustment to Conversion Rate Upon a Make-Whole Fundamental Change.

(a) If and only to the extent that a Holder converts its Securities in connection with a
Make-Whole Fundamental Change, the Company shall, under the circumstances set forth in this
Section 5.04, increase the Conversion Rate for the Securities so surrendered for conversion by a
number of additional shares (the “Additional Shares”), as described below.

(b) Upon surrender of Securities for conversion in connection with a Make-Whole Fundamental
Change, the Company shall, at its option, satisfy its Conversion Obligation by Physical
Settlement, Cash Settlement or Combination Settlement in accordance with Section 5.02. However, if
the consideration for the Common Stock in any Make-Whole Fundamental Change described in clause
(c) of the definition of Fundamental Change is composed entirely of cash, for any conversion of
the Securities following the Effective Date of such Make-Whole Fundamental Change, the Conversion
Obligation shall be calculated based solely on the Stock Price for the transaction and shall be
deemed to be an amount in cash per $1,000 principal amount of converted Securities equal to the
Conversion Rate (including any adjustment described in this Section 5.04), multiplied by such
Stock Price. In such event, the Conversion Obligation shall be determined and paid to Holders in
cash on the third Business Day following the Conversion Date. The Company shall notify Holders of
the Effective Date of any Make-Whole Fundamental Change and issue a press release announcing such
Effective Date no later than five Business Days after such Effective Date.

(c) The number of Additional Shares, if any, by which the Conversion Rate shall be increased
shall be determined by reference to the table set forth in clause (f) below, based on the date on
which the Make-Whole Fundamental Change occurs or becomes effective (the “Effective Date”) and the
price (the “Stock Price”) paid (or deemed to be paid) per share of Common Stock in such Make-Whole
Fundamental Change. If holders of Common Stock receive only cash in a Make-Whole Fundamental
Change described in clause (c) of the definition of Fundamental Change, the Stock Price shall be
the cash amount paid per share of Common Stock. Otherwise, the Stock Price shall be the average of
the Last Reported Sale Prices of the Common Stock on each of the five consecutive Trading Days
prior to, but excluding, the Effective Date of the Make-Whole Fundamental Change.

(d) A conversion of Securities by a Holder shall be deemed for these purposes to be “in
connection with” a Make-Whole Fundamental Change if the Conversion Notice is received by the
Conversion Agent on or after the Effective Date of the Make-Whole Fundamental Change and prior to
the close of business on the Business Day immediately preceding the related Fundamental Change
Repurchase Date (or, in the case of a Make-Whole Fundamental Change that would have been a
Fundamental Change but for the carve-out in subsection (ii) of clause (c) of the definition of
Fundamental Change, the 35th Trading Day following the actual Effective Date of the Make-Whole
Fundamental Change).

(e) The Stock Prices set forth in the first row of the following table (i.e., the column
headings) shall be adjusted as of any date on which the Conversion Rate is adjusted pursuant to
Section 5.05. The adjusted Stock Prices shall equal the Stock Prices applicable immediately prior
to such adjustment, multiplied by a fraction, the numerator of which is the Conversion Rate
immediately prior to the adjustment giving rise to the Stock Price adjustment and the denominator
of which is the Conversion Rate as so adjusted. The number of Additional Shares
will be adjusted in the same manner, at the same time and for the same events as the
Conversion Rate as set forth in Section 5.05.

 

24

 

(f) The following table sets forth the number of Additional Shares by which the Conversion
Rate shall be increased per $1,000 initial principal amount of Securities for each Stock Price and
Effective Date set forth below:

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Effective	 	Stock Price	 
	Date	 	$10.25	 	 	$11.00	 	 	$12.00	 	 	$15.00	 	 	$20.00	 	 	$25.00	 	 	$30.00	 	 	$35.00	 	 	$40.00	 	 	$50.00	 	 	$75.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	November 7, 2011
	 	 	22.5141	 	 	 	19.7838	 	 	 	16.7163	 	 	 	10.8276	 	 	 	6.6736	 	 	 	4.9395	 	 	 	3.8899	 	 	 	3.1466	 	 	 	2.6008	 	 	 	1.8437	 	 	 	0.8675	 
	November 15, 2012
	 	 	22.5141	 	 	 	19.7916	 	 	 	16.5163	 	 	 	10.3650	 	 	 	6.0960	 	 	 	4.4602	 	 	 	3.5077	 	 	 	2.8422	 	 	 	2.3538	 	 	 	1.6749	 	 	 	0.7955	 
	November 15, 2013
	 	 	22.5141	 	 	 	19.8482	 	 	 	16.3623	 	 	 	9.8459	 	 	 	5.3685	 	 	 	3.9373	 	 	 	3.0845	 	 	 	2.5013	 	 	 	2.0734	 	 	 	1.4802	 	 	 	0.7092	 
	November 15, 2014
	 	 	22.5141	 	 	 	19.8355	 	 	 	16.1208	 	 	 	9.1766	 	 	 	4.6699	 	 	 	3.2967	 	 	 	2.5932	 	 	 	2.1125	 	 	 	1.7545	 	 	 	1.2580	 	 	 	0.6080	 
	November 15, 2015
	 	 	22.5141	 	 	 	19.7061	 	 	 	15.7142	 	 	 	8.3856	 	 	 	3.7522	 	 	 	2.5929	 	 	 	2.0504	 	 	 	1.6755	 	 	 	1.3956	 	 	 	1.0048	 	 	 	0.4901	 
	November 15, 2016
	 	 	22.5141	 	 	 	19.2830	 	 	 	14.9519	 	 	 	7.1926	 	 	 	2.6942	 	 	 	1.8208	 	 	 	1.4491	 	 	 	1.1876	 	 	 	0.9915	 	 	 	0.7174	 	 	 	0.3539	 
	November 15, 2017
	 	 	22.5141	 	 	 	18.2125	 	 	 	13.3819	 	 	 	5.2070	 	 	 	1.3765	 	 	 	0.9727	 	 	 	0.7778	 	 	 	0.6390	 	 	 	0.5348	 	 	 	0.3890	 	 	 	0.1947	 
	November 15, 2018
	 	 	22.5141	 	 	 	15.8622	 	 	 	8.2864	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 	 	 	0.0000	 

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

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

(ii) if the Stock Price is more than $75.00 per share (subject to adjustment in the
same manner as the Stock Prices set forth in the column headings of the table above), no
Additional Shares shall be added to the Conversion Rate; and

(iii) if the Stock Price is less than $10.25 per share (subject to adjustment in the
same manner as the Stock Prices set forth in the column headings of the table), no
Additional Shares shall be added to the Conversion Rate.

Notwithstanding the foregoing, in no event shall the total number of shares of Common Stock
issuable upon conversion exceed 97.5610 per $1,000 principal amount of Securities, subject to
adjustment in the same manner, at the same time and for the same events as the Conversion Rate as
set forth in Section 5.05.

Section 5.05. Conversion Rate Adjustments. The Conversion Rate shall be adjusted, without
duplication, from time to time by the Company, upon the occurrence of any of the following events,
except that the Company shall not make any adjustments to the Conversion Rate if Holders of the
Securities participate (other than in the case of a share split or share combination), at the same
time and upon the same terms as holders of the Common Stock and solely as a result of holding the
Securities, in any of the events described in this Section 5.05, without having to convert their
Securities as if they held a number of shares of Common Stock equal to the Conversion Rate,
multiplied by the principal amount (expressed in thousands) of Securities held by such Holder.

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

	 	 	 	 	 
	CR1 = CR0 x

	 	  OS1  
	 	 
	 	OS0	 	 

where,

 

25

 

	 	 	 	 	 
	CR0

	 	=
	 	the Conversion Rate in effect immediately prior to
the open of business on the Ex-Dividend Date of
such dividend or distribution, or immediately
prior to the open of business on the effective
date of such share split or share combination, as
applicable;
	 
	 	 	 	 
	CR1

	 	=
	 	the Conversion Rate in effect immediately after
the open of business on such Ex-Dividend Date or
effective date;
	 
	 	 	 	 
	OS0

	 	=
	 	the number of shares of Common Stock outstanding
immediately prior to the open of business on such
Ex-Dividend Date or effective date; and
	 
	 	 	 	 
	OS1

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

Any adjustment made under this Section 5.05(a) shall become effective immediately after the
open of business on the Ex-Dividend Date for such dividend or distribution, or immediately after
the open of business on the effective date for such share split or share combination, as
applicable. If any dividend or distribution of the type described in this Section 5.05(a) is
declared but not so paid or made, the Conversion Rate shall be immediately readjusted, effective as
of the date the Board of Directors determines not to pay such dividend or distribution, to the
Conversion Rate that would then be in effect if such dividend or distribution had not been
declared.

(b) If the Company issues to all or substantially all holders of its Common Stock any rights,
options or warrants entitling them, for a period of not more than 60 calendar days after the
announcement date of such issuance, to subscribe for or purchase shares of Common Stock at a price
per share that is less than the average of the Last Reported Sale Prices of the Common Stock for
the five 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:

	 	 	 	 	 
	CR1 = CR0 x

	 	  OS0
+ X  
	 	 
	 	OS0 + Y	 	 

where,

	 	 	 	 	 
	CR0

	 	=
	 	the Conversion Rate in effect immediately prior to
the open of business on the Ex-Dividend Date for
such issuance;
	 
	 	 	 	 
	CR1

	 	=
	 	the Conversion Rate in effect immediately after
the open of business on such Ex-Dividend Date;
	 
	 	 	 	 
	OS0

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

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

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

Any increase made under this Section 5.05(b) shall be made successively whenever any such
rights, options or warrants are issued and shall become effective immediately after the open of
business on the Ex-Dividend Date for such issuance. To the extent that shares of the Common Stock
are not delivered after the expiration of such rights, options or warrants, the Conversion Rate
shall be decreased to the Conversion Rate that would then be in effect had the increase with
respect to the issuance of such rights, options or warrants been made on the basis of delivery of
only the number of shares of Common Stock actually delivered. If such rights, options or warrants
are
not so issued, the Conversion Rate shall be decreased to the Conversion Rate that would then
be in effect if such Ex-Dividend Date for such issuance had not occurred.

 

26

 

For purposes of this Section 5.05(b), in determining whether any rights, options or warrants
entitle the holders to subscribe for or purchase shares of the Common Stock at less than such
average of the Last Reported Sale Prices of the Common Stock for the five consecutive Trading Day
period ending on, and including, the Trading Day immediately preceding the date of announcement for
such issuance, and in determining the aggregate offering price of such shares of Common Stock,
there shall be taken into account any consideration received by the Company for such rights,
options or warrants and any amount payable on exercise or conversion thereof, the value of such
consideration, if other than cash, to be determined by the Board of Directors.

(c) If the Company distributes shares of its Capital Stock, evidences of its indebtedness,
other assets or property or rights, options or warrants to acquire its Capital Stock or other
securities, to all or substantially all holders of the Common Stock, excluding (i) dividends,
distributions or issuances as to which an adjustment is effected pursuant to Section 5.05(a) or
Section 5.05(b), (ii) dividends or distributions paid exclusively in cash as to which an
adjustment is effected pursuant to Section 5.05(d), (iii) Spin-Offs as to which the provisions set
forth below in this Section 5.05(c) shall apply, (iv) any dividend or distributions in connection
with any event described under Section 5.07, and (v) Non-Separate Rights (any of such shares of
Capital Stock, evidences of indebtedness, other assets or property or rights, options or warrants
to acquire Capital Stock or other securities of the Company, the “Distributed Property”), then the
Conversion Rate shall be increased based on the following formula:

	 	 	 	 	 
	CR1 = CR0 x

	 	     SP0     
	 	 
	 	SP0 - FMV	 	 

where,

	 	 	 	 	 
	CR0

	 	=
	 	the Conversion Rate in effect immediately prior to
the open of business on the Ex-Dividend Date for
such distribution;
	 
	 	 	 	 
	CR1

	 	=
	 	the Conversion Rate in effect immediately after
the open of business on such Ex-Dividend Date;
	 
	 	 	 	 
	SP0

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

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

Any increase made under the portion of this Section 5.05(c) above shall become effective
immediately after the open of business on the Ex-Dividend Date for such distribution. If such
distribution is not so paid or made, the Conversion Rate shall be decreased to the Conversion Rate
that would then be in effect if such dividend or distribution had not been declared.

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

If the Board of Directors determines the “FMV” (as defined above) of any distribution for
purposes of this Section 5.05(c) by reference to the actual or when-issued trading market for any
securities, it shall in doing so consider the prices in such market over the same period used in
computing the Last Reported Sale Prices of the Common Stock over the five consecutive Trading Day
period ending on, and including, the Trading Day immediately preceding the Ex-Dividend Date for
such distribution.

 

27

 

With respect to an adjustment pursuant to this Section 5.05(c) where there has been a payment
of a dividend or other distribution on the Common Stock of shares of Capital Stock of any class or
series, or similar equity interest, of or relating to a Subsidiary or other business unit of the
Company, that are, or, when issued, will be, listed or admitted for trading on a U.S. national
securities exchange (a “Spin-Off”), the Conversion Rate shall be increased based on the following
formula:

	 	 	 	 	 
	CR1 = CR0 x

	 	     FMV0 + MP0     
	 	 
	 	MP0	 	 

where,

	 	 	 	 	 
	CR0

	 	=
	 	the Conversion Rate in effect immediately prior to the end of the Valuation Period;
	 
	 	 	 	 
	CR1

	 	=
	 	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 the Common Stock applicable to one share of the Common Stock (determined by
reference to the definition of Last Reported Sale Price as if references therein to Common Stock were
to such Capital Stock or similar equity interest) over the first five consecutive Trading Day period
after, and including, the Ex-Dividend Date of the Spin-Off (the “Valuation Period”); and
	 
	 	 	 	 
	MP0

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

The adjustment to the Conversion Rate under the preceding paragraph shall occur at the close
of business on the last Trading Day of the Valuation Period; provided that because the Company will
make the adjustment to the Conversion Rate at the end of the Valuation Period with retroactive
effect, the Company will delay the settlement of any Securities where the last day of the related
Observation Period occurs during the Valuation Period. In such event, notwithstanding Section
5.02(a)(i), the Company will pay the cash and deliver any shares of Common Stock (subject to the
Company’s right to deliver cash in lieu of such shares of Common Stock) due upon conversion (based
on the adjusted Conversion Rate as described above) on the third Business Day immediately following
the last day of the Valuation Period.

For purposes of this Section 5.05(c) (and subject in all respect to Section 5.09), rights,
options or warrants distributed by the Company, pursuant to a stockholder rights plan to all or
substantially all holders of its Common Stock entitling them to subscribe for or purchase shares of
the Company’s Capital Stock, including Common Stock (either initially or 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 the Common Stock;
(ii) are not exercisable; and (iii) are also issued in respect of future issuances of the Common
Stock, shall be deemed not to have been distributed for purposes of this Section 5.05(c) (and no
adjustment to the Conversion Rate under this Section 5.05(c) will be required) until the occurrence
of the earliest Trigger Event, whereupon such rights, options or 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 5.05(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 (in which case the existing rights,
options or warrants shall be deemed to terminate and expire on such date 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
immediately 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 5.05(c) was
made, (1) in the case of any such rights, options or warrants that shall all have been redeemed or
purchased without exercise by any holders thereof, upon such final redemption or purchase (x) the
Conversion Rate shall be readjusted as if such rights, options or warrants had not been issued and
(y) the Conversion Rate shall then again be readjusted to give effect to such distribution, deemed
distribution or Trigger Event, as the case may be, as though it were a cash distribution, equal to
the per share redemption or purchase 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, options or warrants), made to all holders of
Common Stock as of the date of such redemption or purchase, 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.

 

28

 

For purposes of Section 5.05(a), Section 5.05(b) and this Section 5.05(c), any dividend or
distribution to which this Section 5.05(c) is applicable that also includes one or both of:

(A) a dividend or distribution of shares of Common Stock to which Section 5.05(a) is
applicable (the “Clause A Distribution”); or

(B) a dividend or distribution of rights, options or warrants to which Section 5.05(b) is
applicable (the “Clause B Distribution”),

then (1) such dividend or distribution, other than the Clause A Distribution and the Clause B
Distribution, shall be deemed to be a dividend or distribution to which this Section 5.05(c) is
applicable (the “Clause C Distribution”) and any Conversion Rate adjustment required by this
Section 5.05(c) with respect to such Clause C Distribution shall then be made, and (2) the Clause A
Distribution and Clause B Distribution shall be deemed to immediately follow the Clause C
Distribution and any Conversion Rate adjustment required by Section 5.05(a) and Section 5.05(b)
with respect thereto shall then be made, except that, if determined by the Company (I) the
“Ex-Dividend Date” of the Clause A Distribution and the Clause B Distribution shall be deemed to be
the Ex-Dividend Date of the Clause C Distribution and (II) any shares of Common Stock included in
the Clause A Distribution or Clause B Distribution shall be deemed not to be “outstanding
immediately prior to the open of business on such Ex-Dividend Date or effective date” within the
meaning of Section 5.05(a) or “outstanding immediately prior to the open of business on such
Ex-Dividend Date” within the meaning of Section 5.05(b).

(d) If the Company makes any cash dividend or distribution to all or substantially all
holders of the Common Stock, 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 open of business on the Ex-Dividend Date for
such dividend or distribution;
	 
	 	 	 	 
	CR1

	 	=
	 	the Conversion Rate in effect immediately after the open of business on the Ex-Dividend Date for such
dividend or distribution;
	 
	 	 	 	 
	SP0

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

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

Any increase pursuant to this Section 5.05(d) shall become effective immediately after the
open of business on the Ex-Dividend Date for such dividend or distribution. If such dividend or
distribution is not so paid, the Conversion Rate shall be decreased, effective as of the date the
Board of Directors determines not to make or pay such dividend or distribution, to the Conversion
Rate that would then be in effect if such dividend or distribution had not been declared.

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

 

29

 

(e) If the Company or any of its Subsidiaries makes a payment in respect of a tender offer or
exchange offer for the Common Stock, to the extent that the cash and value of any other
consideration included in the payment per share of the Common Stock exceeds the 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 offer or exchange offer, as the case may be, 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 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 Trading Day next
succeeding the date such tender or exchange offer
expires;
	 
	 	 	 	 
	AC

	 	=
	 	the aggregate value of all cash and any other
consideration (as determined by the Board of
Directors) paid or payable for shares of Common
Stock purchased in such tender or exchange offer;
	 
	 	 	 	 
	OS0

	 	=
	 	the number of shares of Common Stock outstanding
immediately prior to the date such tender or
exchange offer expires (prior to giving effect to
the purchase of all shares of Common Stock
accepted for purchase or exchange in such tender
or exchange offer);
	 
	 	 	 	 
	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 of Common Stock accepted for
purchase or exchange in such tender or exchange
offer); and
	 
	 	 	 	 
	SP1

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

The adjustment to the Conversion Rate under this Section 5.05(e) shall occur at the close of
business on the Trading Day next succeeding the date such tender or exchange offer expires,
provided that because the Company will make the adjustment to the Conversion Rate at the end of the
Offer Valuation Period with retroactive effect, the Company will delay the settlement of any
Securities where the last day of the related Observation Period occurs during the Offer Valuation
Period. In such event, notwithstanding Section 5.02(a)(i), the Company will pay the cash and
deliver any shares of Common Stock (subject to the Company’s right to deliver cash in lieu of such
shares of Common Stock) due upon conversion (based on the adjusted Conversion Rate as described
above) on the third Business Day immediately following the last day
of the Offer Valuation Period.

(f) Notwithstanding this Section 5.05 or any other provision of this Indenture or the
Securities, if a Conversion Rate adjustment becomes effective on any Ex-Dividend Date, and a
Holder that has converted its Securities on or after such Ex-Dividend Date and on or prior to the
related Record Date would be treated as the record holder of the Common Stock as of the related
Conversion Date as described under Section 5.02 (j) based on an adjusted Conversion Rate for such
Ex-Dividend Date, then, notwithstanding the Conversion Rate adjustment provisions in this Section
5.05, the Conversion Rate adjustment relating to such Ex-Dividend Date shall not be made for such
converting Holder. Instead, such Holder shall be treated as if such Holder were the record owner
of the shares of Common Stock on an unadjusted basis and participate in the related dividend,
distribution or other event giving rise to such adjustment.

 

30

 

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

(h) In addition to those adjustments required by subsections (a), (b), (c), (d) and (e) of
this Section 5.05, and to the extent permitted by applicable law and subject to the stockholder
approval requirements of the NASDAQ Global Select Market, the Company from time to time may
increase the Conversion Rate by any amount for any period of at least 20 Business Days if the
Board of Directors has determined that such increase would be in the Company’s best interest. In
addition, the Company may (but is not required to) increase the Conversion Rate, as the Board of
Directors considers advisable, to avoid or diminish any income tax to holders of Common Stock or
rights to purchase Common Stock resulting from any dividend or distribution of stock (or rights to
acquire stock) or from any event treated as such for income tax purposes to the extent permitted
by applicable law and subject to the stockholder approval requirements of the NASDAQ Global Select
Market. Whenever the Conversion Rate is increased pursuant to either of the preceding two
sentences, the Company shall mail to the Holder of each Security at its last address appearing on
the register of the Primary Registrar a notice of the increase at least 15 days prior to the date
the increased Conversion Rate takes effect, and such notice shall state the increased Conversion
Rate and the period during which it will be in effect.

(i) If the application of the adjustments required by subsections (a), (b), (c), (d) and (e)
of this Section 5.05 would result in a decrease in the Conversion Rate, no adjustment to the
Conversion Rate shall be made (other than as a result of a reverse share split or other share
combination).

(j) Notwithstanding anything to the contrary in this Section 5.05, the Conversion Rate shall
not be adjusted:

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

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

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

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

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

(k) All calculations and other determinations in respect of the Conversion Rate shall be made
by the Company to the nearest 1/10,000th of a share.

(l) Whenever the Conversion Rate is adjusted pursuant to this Section 5.05, the Company shall
compute the adjusted Conversion Rate in accordance with this Section 5.05 and shall prepare an
Officers’ Certificate setting forth (i) the adjusted Conversion Rate, (ii) the subsection of this
Section 5.05 pursuant to which such adjustment has been made, showing in reasonable detail the
facts upon which such adjustment is based, (iii) the calculation of such adjustment and (iv) the
date as of which such adjustment is effective, and such Officers’ Certificate shall promptly be
delivered to the Trustee and each Conversion Agent (which certificates shall be conclusive
evidence of the accuracy of such adjustment absent manifest error). As soon as practicable after
each such adjustment, the Company shall deliver to the Holders a notice stating that the
Conversion Rate has been adjusted and setting forth the adjusted Conversion Rate. Unless and until
a Responsible Officer of the Trustee shall receive an Officers’ Certificate with respect to an
adjustment of the Conversion Rate, the Trustee may assume without inquiry that the Conversion Rate
has not been adjusted and that the last Conversion Rate of which
it has knowledge remains in effect. Neither the Trustee nor any Conversion Agent shall be
under any duty or responsibility with respect to any such certificate or the information and
calculations contained therein, except to exhibit the same to any Holder of Securities desiring
inspection thereof at its office during normal business hours.

 

31

 

Simultaneously with an adjustment of the Conversion Rate, the Company shall disseminate a
press release detailing the new Conversion Rate and other relevant information.

(m) For purposes of this Section 5.05, the number of shares of Common Stock at any time
outstanding shall not include shares held in the treasury of the Company so long as the Company
does not pay any dividend or make any distribution on shares of Common Stock held in the treasury
of the Company, but shall include shares issuable in respect of scrip certificates issued in lieu
of fractions of shares of Common Stock.

(n) If the Company is required by applicable law to pay, and pays, withholding tax on behalf
of a Holder as a result of an adjustment to the Conversion Rate, the Company may, at its option,
set off or cause to be set off such withholding tax against any payments of cash or shares of
Common Stock on the Securities (or, if such withholding tax has not previously been fully set off
against such cash or shares, against any payments on the shares of Common Stock).

Section 5.06. Adjustments of Prices. Whenever any provision of this Indenture requires the
Company to calculate the Last Reported Sale Prices, the Daily VWAPs, the Daily Conversion Values or
the Daily Settlement Amounts over a span of multiple days (including an Observation Period and the
period for determining the Stock Price for purposes of a Make-Whole Fundamental Change), the Board
of Directors 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 relevant period. Without
limiting the foregoing, and by way of example, with respect to any Securities converted where a
portion of the related Observation Period occurs during a Valuation Period, for a Spin-Off, any
adjustment with respect to such Spin-Off will be given retroactive effect to such portion of the
Observation Period.

Section 5.07. Effect of Recapitalizations, Reclassifications and Changes of the Common Stock.
(a) In the case of:

(i) any recapitalization, reclassification or change of the Common Stock (other than
changes resulting from a subdivision or combination),

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

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

(iv) any statutory share exchange,

in each case as a result of which the Common Stock would be converted into, or exchanged for,
stock, other securities, other property or assets (including cash or any combination thereof) (any
such event, a “Merger Event”), then, at and after the effective time of such Merger Event, the
right to convert each $1,000 principal amount of Securities shall be changed into a right to
convert such principal amount of Securities into the kind and amount of shares of stock, other
securities or other property or assets (including cash or any combination thereof) that a holder of
a number of shares of Common Stock equal to the Conversion Rate in effect immediately prior to such
Merger Event would have owned or been entitled to receive (the “Reference Property”, with each
“unit of Reference Property” meaning the kind and amount of Reference Property that a holder of one
share of Common Stock is entitled to receive) upon such Merger Event and, prior to or at the
effective time of such Merger Event, the Company or the successor or purchasing Person, as the case
may be, shall execute with the Trustee a supplemental indenture permitted under Section 11.02
providing for such change in the right to convert each $1,000 principal amount of Securities;
provided, however, that at and after the effective time of the Merger Event (A) the Company shall
continue to have the right to determine the form of consideration to be paid or delivered, as the
case may be, upon conversion of Securities in accordance with Section 5.02 and (B)(I) any amount
payable in cash upon

 

32

 

conversion of the Securities in accordance with Section 5.02 shall continue to be payable in cash,
(II) any shares of Common Stock that the Company would have been required to deliver upon
conversion of the Securities in accordance with Section 5.02 shall instead be deliverable in the
amount and type of Reference Property that a holder of that number of shares of Common Stock would
have been entitled to receive in such Merger Event and (III) the Daily VWAP shall be calculated
based on the value of a unit of Reference Property. If the Merger Event causes the Common Stock to
be converted into, or exchanged for, the right to receive more than a single type of consideration
(determined based in part upon any form of stockholder election), then the Reference Property into
which the Securities will be convertible shall be deemed to be the weighted average of the types
and amounts of consideration received by the holders of Common Stock that affirmatively make such
an election. The Company shall notify Holders, the Trustee and the Conversion Agent of the weighted
average as soon as practicable after the determination is made.

If the holders of Common Stock receive only cash in such Merger Event, then for all
conversions that occur after the effective date of such Merger Event (x) the consideration due upon
conversion of each $1,000 principal amount of Securities shall be solely cash in an amount equal to
the Conversion Rate in effect on the Conversion Date (as will be increased by any Additional Shares
pursuant to Section 5.04, if applicable), multiplied by the price paid per share of Common Stock in
such Merger Event and (y) the Company shall satisfy the Conversion Obligation by paying cash to
converting Holders on the third Scheduled Trading Day immediately following the Conversion Date.

Such supplemental indenture described in the second immediately preceding paragraph shall
provide for adjustments that shall be as nearly equivalent as is possible to the adjustments
provided for in this Article 5. If, in the case of any Merger Event, the Reference Property
includes shares of stock, securities or other property or assets (including cash or any combination
thereof) of a Person other than the successor or purchasing corporation, as the case may be, in
such Merger Event, then such supplemental indenture shall also be executed by such other Person and
shall contain such additional provisions to protect the interests of the Holders of the Securities
as the Board of Directors shall reasonably consider necessary by reason of the foregoing, including
to the extent required by the Board of Directors and practicable the provisions providing for the
repurchase rights set forth in Article 4.

(b) In the event the Company shall execute a supplemental indenture pursuant to subsection
(a) of this Section 5.07, 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 comprise the Reference Property after any such Merger Event, any
adjustment to be made with respect thereto and that all conditions precedent have been complied
with, and shall promptly mail notice thereof to all Holders. The Company shall cause notice of the
execution of such supplemental indenture to be mailed to each Holder, at its address appearing on
the register of the Primary Registrar provided for in this Indenture, within 20 days after
execution thereof. Failure to deliver such notice shall not affect the legality or validity of
such supplemental indenture.

(c) The Company shall not become a party to any Merger Event unless its terms are consistent
with this Section 5.07. None of the foregoing provisions shall affect the right of a holder of
Securities to convert its Securities into cash, shares of Common Stock or a combination of cash
and shares of Common Stock, as applicable, as set forth in Section 5.01 and Section 5.02 prior to
the effective date of such Merger Event.

(d) The above provisions of this Section 5.07 shall similarly apply to successive Merger
Events.

Section 5.08. Cancellation of Converted Securities. All Certificated Securities delivered for
conversion shall be delivered to the Trustee or its agent to be canceled by or at the direction of
the Trustee, which shall dispose of the same as provided in this Indenture. Upon conversions of
beneficial interests in any Global Security, the Trustee or the Securities Custodian, at the
direction of the Trustee, shall reduce the aggregate principal amount of outstanding Securities
represented by such Global Security to reflect the conversion.

 

33

 

Section 5.09. Stockholders Rights. To the extent that the Company has a stockholder rights
plan in effect upon conversion of the Securities, each share of Common Stock, if any, issued upon
such conversion shall be entitled to receive the appropriate number of rights, if any, and the
certificates representing the Common Stock issued upon such conversion shall bear such legends, if
any, in each case as may be provided by the terms of any such stockholder rights plan, as the same
may be amended from time to time (such rights prior to separation from
the Common Stock, “Non-Separate Rights”). If at the time of conversion, however, the rights
have separated from the shares of Common Stock in accordance with the provisions of the applicable
stockholder rights plan so that the Holders would not be entitled to receive any rights in respect
of Common Stock, if any, issuable upon conversion of the Securities, the Conversion Rate shall be
increased at the time of separation as if the Company distributed to all or substantially all
holders of Common Stock shares of Capital Stock of the Company, evidences of its indebtedness,
other assets or property or rights, options or warrants to acquire its Capital Stock or other
securities as provided in Section 5.05(c), subject to decrease in the event of the expiration,
termination or redemption of such rights. A distribution of rights pursuant to such a stockholder
rights plan shall not trigger a Conversion Rate adjustment pursuant to Section 5.05(c) if Holders
of the Securities participate in such distribution on an as-converted basis in accordance with the
first paragraph of Section 5.05.

Section 5.10. Trustee’s Disclaimer. (a) The Trustee shall have no duty to determine when an
adjustment under this Article 5 should be made, how it should be made or what such adjustment
should be, but may accept as conclusive evidence of that fact or the correctness of any such
adjustment, and shall be protected in relying upon, the Officers’ Certificate that the Company is
obligated to deliver to the Trustee pursuant to Section 5.05(l). The Trustee makes no
representation as to the validity or value of any securities or assets issued upon conversion of
Securities, and the Trustee shall not be responsible for the Company’s failure to comply with any
provisions of this Article 5. The Trustee, the Bid Solicitation Agent and the Conversion Agent
shall have no responsibility for determination of the Daily Settlement Amounts (if applicable) or
the Daily Conversion Values (if applicable). In addition, in no event shall the Trustee, the Bid
Solicitation Agent or Conversion Agent be responsible for making any calculations under this
Indenture or for determining amounts to be paid or for monitoring any Stock Price. For the
avoidance of doubt, the Trustee, the Bid Solicitation Agent and Conversion Agent shall rely
conclusively on the calculations and information provided to them by the Company as to the Daily
VWAP, Trading Price, Daily Conversion Value, Daily Settlement Amount and Last Reported Sale Price.
Nor shall the Trustee, the Bid Solicitation Agent or Conversion Agent be charged with knowledge of
or have any duties to monitor any Measurement Period or Observation Period.

(b) The Trustee shall not be under any responsibility to determine the correctness of any
provisions contained in any supplemental indenture executed pursuant to Section 7.02, but may
accept as conclusive evidence of the correctness thereof, and shall be fully protected in relying
upon, the Officers’ Certificate with respect thereto which the Company is obligated to file with
the Trustee pursuant to Section 7.02.

ARTICLE 6

COVENANTS

Section 6.01. General. Sections 4.01, 4.05 and 4.06 of Article IV and Section 5.03 of Article
V of the Original Indenture shall not apply to, and have no force and effect with respect to, the
Securities and any reference to Article IV or Sections 4.01, 4.05 and 4.06 and Section 5.03 of
Article V of the Original Indenture shall be superseded by and references thereto shall be deemed
to refer to this Article 6 and Sections 6.02, 6.06, 6.04 and 6.03, respectively, of this First
Supplemental Indenture.

Section 6.02. Payment on the Securities. The Company shall promptly make all payments in
respect of the Securities on the dates and in the manner provided in the Securities and this
Indenture. Principal (including the Fundamental Change Repurchase Price, if applicable) of and
interest on the Securities shall be considered paid on the date it is due, if the Paying Agent (if
other than the Company or an Affiliate thereof) holds as of 11:00 a.m., New York City time, on the
due date money, deposited by the Company or an Affiliate thereof in immediately available funds,
designated for and sufficient to pay all principal (including the Fundamental Change Repurchase
Price) and interest then due on the Securities.

Payment of the principal of and interest on the Securities shall be made at the office or
agency of the Company maintained for that purpose in Pittsburgh, Pennsylvania (which shall
initially be an office or agency of the Trustee in Pittsburgh, Pennsylvania); provided, however,
that at the option of the Company payment of interest may be made by check mailed to the address of
the Person entitled thereto as such address appears in the Register; provided further that a Holder
with an aggregate principal amount in excess of $2,000,000 will be paid by wire transfer in
immediately available funds at the election of such Holder if such Holder has provided wire
transfer
instructions to the Company and the Trustee at least 10 Business Days prior to the payment
date, it being understood that as long as the Securities are Global Securities, payment will be
made by wire transfer to DTC.

 

34

 

Section 6.03. SEC Reports.

(a) The Company shall file copies of the annual reports and of the information, documents and
other reports (or copies of such portions of any of the foregoing as the SEC may from time to time
by rules and regulations prescribe) that the Company is required to file with the SEC pursuant to
Section 13 or 15(d) of the Exchange Act with the Trustee within 15 days after the Company is
required to file the same with the SEC; or, if the Company is not required to file information,
documents or reports with the SEC, then the Company shall file with the Trustee and the SEC, if
permitted, in accordance with the rules and regulations prescribed from time to time by the SEC,
such of the supplementary and periodic information, documents and reports that may be required in
respect of an issuer of a security listed and registered on a national securities exchange as may
be prescribed from time to time in such rules and regulations. Documents filed by the Company with
the SEC via the EDGAR system or any successor system shall be deemed to be filed with the Trustee
as of the time such documents are filed via EDGAR. The Company shall at all times comply with the
TIA Section 314(a).

(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
rely exclusively on Officers’ Certificates).

Section 6.04. Compliance Certificates.

(a) The Company shall deliver to the Trustee, within 120 days after the end of each fiscal
year during which any Securities were outstanding, an Officers’ Certificate stating whether or not
the signer thereof knows of any Default or Event of Default that occurred during such fiscal year.
Such Officers’ Certificate shall contain a certification from the principal executive officer,
principal financial officer or principal accounting officer of the Company that a review has been
conducted of the activities of the Company and the Company’s performance under this Indenture and
that the Company has complied with all conditions and covenants under this Indenture. For purposes
of this Section 6.04, such compliance shall be determined without regard to any period of grace or
requirement of notice provided under this Indenture. If the officer of the Company signing such
Officers’ Certificate has knowledge of such a Default or Event of Default, the Officers’
Certificate shall describe any such Default or Event of Default and its status.

(b) The Company shall, so long as any of the Securities are outstanding, deliver to the
Trustee, forthwith, and in any event within five days, upon any Officer becoming aware of any
Default or Event of Default, an Officers’ Certificate specifying such Default or Event of Default
and what action the Company is taking or proposes to take with respect thereto.

Section 6.05. 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.

Section 6.06. Maintenance of Corporate Existence. Subject to Article 7, 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 6.07. 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 Securities 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.

 

35

 

ARTICLE 7

CONSOLIDATION, MERGER, SALE, CONVEYANCE, TRANSFER OR LEASE

Section 7.01. General. Article X of the Original Indenture shall not apply to, and have no
force and effect with respect to, the Securities and any reference to Article X or the Sections of
Article X of the Original Indenture shall be superseded by and references thereto shall be deemed
to refer to this Article 7 and the Sections of this Article 7, respectively, of this First
Supplemental Indenture.

Section 7.02. Company May Consolidate, Etc, Only on Certain Terms. The Company shall not
consolidate or enter into a share exchange with or merge with or into any other Person, or sell,
convey, transfer or lease the properties and assets of the Company substantially as an entirety to
any Person, unless:

(a) in case the Company shall consolidate with or merge into another Person (in a transaction
in which the Company is not the surviving corporation) or sell, convey, transfer or lease all of
its properties and assets substantially as an entirety to another Person, the Person formed by
such consolidation or into which the Company is merged or the Person which acquires by sale,
conveyance or transfer, or which leases, all of the properties and assets substantially as an
entirety of the Company shall:

(i) the successor or transferee person, if not us, is a corporation or limited
liability company organized and existing under the laws of the United States, any State of
the United States, or the District of Columbia; provided that the property into which the
Securities shall be convertible shall be cash and/or the stock or other equity (or American
Depositary Receipts representing common stock) of an entity that is a corporation for U.S.
federal income tax purposes; provided further that, with respect to stock or other equity or
American Depositary Receipts representing common stock of an entity organized under the laws
of a jurisdiction outside the U.S., such entity has a worldwide market capitalization of its
equity securities of at least $5,000,000,000 before giving effect to the merger, sale,
conveyance, transfer or lease and such stock or other equity or American Depositary Receipts
representing common stock is listed on any of The New York Stock Exchange, The NASDAQ Global
Select Market or The NASDAQ Global Market (or any of their respective successors); and

(ii) expressly assume, by an indenture supplemental hereto, executed and delivered to
the Trustee, in form satisfactory to the Trustee, the due and punctual payment of the
principal of and interest on all the Securities and the performance or observance of every
covenant of this Indenture on the part of the Company to be performed or observed and the
conversion rights shall be provided for in accordance with Article 5, by supplemental
indenture satisfactory in form to the Trustee, executed and delivered to the Trustee, by the
Person (if other than the Company) formed by such consolidation or into which the Company
shall have been merged or by the Person which shall have acquired the Company’s assets;

(b) immediately after giving effect to such transaction, no Event of Default, and no event
which, after notice or lapse of time or both, would become an Event of Default, shall have
happened and be continuing; and

(c) the Company has delivered to the Trustee an Officers’ Certificate and an Opinion of
Counsel, each stating that such consolidation, merger, sale, conveyance, transfer or lease and, if
a supplemental indenture is required in connection with such transaction, such supplemental
indenture, comply with this Article 7 and that all conditions precedent herein provided for
relating to such transaction have been complied with.

Notwithstanding anything to the contrary herein, the Company may merge with an Affiliate of
the Company solely for the purpose of reincorporating the Company in another jurisdiction in the
United States of America, any State thereof or the District of Columbia, and the Company may
convert into a limited liability company if the condition set forth in the proviso of clause (a)(i)
of this Section 7.02 shall be satisfied.

 

36

 

Section 7.03. Successor Substituted. Upon any consolidation of the Company with, or merger of
the Company into, any other Person or any sale, conveyance, transfer or lease of the properties and
assets of the Company substantially as an entirety in accordance with Section 7.02, there shall be
an adjustment to the Conversion Obligation and the successor Person formed by such consolidation or
into which the Company is merged or to which such sale, conveyance, transfer or lease of the
properties and assets of the Company substantially as an entirety is made shall succeed to, and be
substituted for, and may exercise every right and power of, the Company under this Indenture with
the same effect as if such successor Person had been named as the Company herein, and thereafter,
except in the case of a lease, the predecessor Person shall be relieved of all obligations and
covenants under this Indenture and the Securities.

ARTICLE 8

DEFAULT AND REMEDIES

Section 8.01. General. Article VI of the Original Indenture shall not apply to, and have no
force and effect with respect to, the Securities and any reference to Article VI or the Sections of
Article VI of the Original Indenture shall be superseded by and references thereto shall be deemed
to refer to this Article 8 and the Sections of this Article 8, respectively, of this First
Supplemental Indenture.

Section 8.02. Events Of Default. An “Event of Default” shall occur if:

(1) the Company fails to pay the principal of any Security when due and payable at its stated
maturity, upon any required repurchase, upon declaration of acceleration or otherwise;

(2) the Company fails to pay the interest on any Security when due and payable and such
failure continues for a period of 30 days;

(3) the Company fails to convert any Security in accordance with this Indenture upon exercise
of a Holder’s conversion right and such failure continues for 5 days;

(4) the Company fails to provide timely notice pursuant to Section 4.02(a), Section 4.02(b),
Section 5.01(d), Section 5.01(e) or Section 5.04(b), in each case when due and such failure
continues for 30 days;

(5) the Company fails to comply with its obligations set forth in Article 7;

(6) the Company fails to perform any other agreement required of it in this Indenture or the
Securities and such failure continues for 60 days after written notice is given in accordance with
the immediately succeeding paragraph;

(7) any indebtedness for money borrowed by the Company or any of its Subsidiaries in an
aggregate outstanding principal amount in excess of $25,000,000 is not paid at final maturity or
upon acceleration, and such indebtedness is not discharged, or such acceleration is not cured or
rescinded, within 30 days after written notice is given in accordance with the immediately
succeeding paragraph;

(8) the failure by the Company or any of its subsidiaries to pay final judgments entered by a
court or courts of competent jurisdiction aggregating in excess of $25,000,000, which judgments are
not paid, discharged or stayed, for a period of 60 days or more;

(9) the Company or any Significant Subsidiary, pursuant to or within the meaning of any
Bankruptcy Law:

(A) commences a voluntary case or proceeding;

(B) consents to the entry of an order for relief against it in an involuntary
case or proceeding;

 

37

 

(C) consents to the appointment of a Custodian of it or for all or
substantially all of its property; or

(D) makes a general assignment for the benefit of its creditors; or

(10) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law
that:

(A) is for relief against the Company or any Significant Subsidiary in an
involuntary case or proceeding;

(B) appoints a Custodian of the Company or any Significant Subsidiary or for
all or substantially all of the property of the Company or any Significant
Subsidiary; or

(C) orders the liquidation of the Company or any Significant Subsidiary;

and in each case the order or decree remains unstayed and in effect for 60 consecutive days.

A default under clause (6) or clause (7) above is not an Event of Default until the Trustee
notifies the Company, or the Holders of at least 25% in aggregate principal amount of the
Securities then outstanding notify the Company and the Trustee, in writing of the default, and the
Company does not cure the default within the time periods specified in clauses (6) or (7), as
applicable, after receipt of such notice. The notice given pursuant to this Section 8.02 must
specify the default, demand that it be remedied and state that the notice is a “Notice of Default.”
When any default under this Section 8.02 is cured, it ceases.

The Trustee shall not be charged with knowledge of any Event of Default unless written notice
thereof shall have been actually received by a Responsible Officer at the Corporate Trust Office of
the Trustee by the Company, a Paying Agent, any Holder or any agent of any Holder.

Section 8.03. Acceleration. If an Event of Default (other than an Event of Default specified
in clause (9) or (10) of Section 8.02) occurs and is continuing, the Trustee may, by notice to the
Company, or the Holders of at least 25% in aggregate principal amount of the Securities then
outstanding may, by notice to the Company and the Trustee, declare all unpaid principal to the date
of acceleration on the Securities then outstanding (if not then due and payable) to be due and
payable upon any such declaration, and the same shall become and be immediately due and payable. If
an Event of Default specified in clause (9) or (10) of Section 8.02 occurs, all unpaid principal of
the Securities then outstanding shall ipso facto become and be immediately due and payable without
any declaration or other act on the part of the Trustee or any Holder. After any acceleration, but
before a judgment or decree based on acceleration, the Holders of a majority in aggregate principal
amount of the Securities may, except with respect to the nonpayment of principal or interest or
with respect to the failure to pay and/or deliver the consideration due upon conversion, rescind
and annul such acceleration by notice to the Trustee if (a) all existing Events of Default, other
than the non-payment of accelerated principal, have been cured or waived; (b) to the extent the
payment of such interest is lawful, interest (calculated at the rate per annum borne by the
Securities plus one percent) on overdue installments of interest and overdue principal, which has
become due otherwise than by such declaration of acceleration, has been paid; (c) the rescission
would not conflict with any judgment or decree of a court of competent jurisdiction; and (d) all
payments due to the Trustee and any predecessor Trustee under Section 7.07 of the Original
Indenture have been made. No such rescission shall affect any subsequent default or impair any
right consequent thereto.

Section 8.04. Other Remedies. If an Event of Default occurs and is continuing, the Trustee
may, but shall not be obligated to, pursue any available remedy by proceeding at law or in equity
to collect the payment of the principal of or interest on the Securities or to enforce the
performance of any provision of the Securities or this Indenture. The Trustee may maintain a
proceeding even if it does not possess any of the Securities or does not produce any of them in the
proceeding. A delay or omission by the Trustee or any Holder in exercising any right or remedy
accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or
acquiescence in the Event of Default. No remedy is exclusive of any other remedy. All available
remedies are cumulative to the extent permitted by law.

 

38

 

Section 8.05. Additional Interest.

(a) Notwithstanding anything in this Indenture or in the Securities to the contrary, to the
extent the Company elects, the sole remedy for an Event of Default during the first 180 days after
the occurrence of an Event of Default relating to (i) the Company’s failure to file with the
Trustee pursuant to Section 314(a)(1) of the Trust Indenture Act any documents or reports that the
Company is required to file with the SEC pursuant to Section 13 or 15(d) of the Exchange Act or
(ii) the Company’s failure to comply with its obligations as set forth in Section 6.03(a), shall
after the occurrence of such an Event of Default consist exclusively of the right to receive
Additional Interest on the Securities at a rate equal to:

(i) 0.25% per annum of the principal amount of the Securities outstanding for each day
during which such Event of Default is continuing during the 90-day period beginning on, and
including, the date on which such an Event of Default first occurs; and

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

(b) If the Company so elects, such Additional Interest shall be payable in the same manner
and on the same dates as the stated interest payable on the Securities. On the 181st day after
such Event of Default (if such Event of Default is not cured or waived prior to such 181st day),
the Securities will be subject to acceleration as provided in Section 8.03. This Section 8.05
shall not affect the rights of Holders in the event of the occurrence of any other Event of
Default. If the Company does not elect to pay Additional Interest following an Event of Default in
accordance with this Section 8.05, or if it so elects but fails to pay the Additional Interest
when due, the Securities shall be immediately subject to acceleration as provided in Section 8.03.
To elect to pay Additional Interest as the sole remedy during the first 180 days after the
occurrence of an Event of Default relating to the failure to comply with the reporting obligations
in accordance with subsection (a) of this Section 8.05 and this subsection (b), the Company must
notify all Holders of the Securities, the Trustee and the Paying Agent of such election prior to
the beginning of such 180-day period. Upon the Company’s failure to timely give such notice, the
Securities shall be immediately subject to acceleration as provided in Section 8.03.

Section 8.06. Waiver of Defaults and Events of Default. Subject to Section 8.09 and Section
10.03, the Holders of a majority in aggregate principal amount of the Securities then outstanding
by notice to the Trustee may waive an existing default or Event of Default and its consequence,
except (a) a default or Event of Default in the payment of the principal of or interest on any
Security, (b) a failure by the Company to convert any Securities in accordance with the provisions
of the Securities and this Indenture or (c) any default or Event of Default in respect of any
provision of this Indenture or the Securities that, under Section 11.03, cannot be modified or
amended without the consent of the Holder of each Security affected. When a default or Event of
Default is waived, it is cured and ceases.

Section 8.07. Control by Majority. The Holders of a majority in aggregate principal amount of
the outstanding Securities will 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 the Securities. However, the Trustee may refuse to follow any
direction that conflicts with law or this Indenture, that the Trustee, in good faith by a
Responsible Officer of the Trustee, determines may be unduly prejudicial to the rights of another
Holder or the Trustee, or that may involve the Trustee in personal liability unless the Trustee is
offered indemnity reasonably satisfactory to it; provided, however, that the Trustee may take any
other action deemed proper by the Trustee that is not inconsistent with such direction.

Section 8.08. Limitations on Suits. A Holder may not pursue any remedy with respect to this
Indenture or the Securities (except actions for the enforcement of payment of the principal or
interest on any Security on or after the applicable due date or the right to convert the Securities
in accordance with Article 5) or for the appointment of a receiver or a trustee, unless:

(1) the Holder has previously given the Trustee written notice of a continuing Event of
Default;

 

39

 

(2) the Holders of at least 25% in aggregate principal amount of the Securities then
outstanding have made a written request and have offered to the Trustee indemnity reasonably
satisfactory to the Trustee to institute such proceeding as Trustee; and

(3) the Trustee has failed to institute such proceeding within 60 days after such notice,
request and offer, and has not received from the Holders of a majority in aggregate principal
amount of the Securities then outstanding a direction inconsistent with such request within 60 days
after such notice, request and offer.

A Holder may not use this Indenture to prejudice the rights of another Holder or to obtain a
preference or priority over such other Holder.

Section 8.09. Rights of Holders to Receive Payment and to Convert. Each Holder shall have the
right to receive payment or delivery, as the case may be, of (a) the principal (including the
Fundamental Change Repurchase Price) of, (b) accrued and unpaid interest, if any, on, and (c) the
consideration due upon conversion of, its Securities, on or after the respective due dates
expressed or provided for in this Indenture, or to institute suit for the enforcement of any such
payment or delivery, as the case may be, and such right to receive payment or delivery, as the case
may be, on or after such respective dates shall not be impaired or affected without the consent of
such Holder.

Section 8.10. Collection Suit By Trustee. (a) If an Event of Default in the payment of
principal or interest specified in clause (1) or (2) of Section 8.02 occurs and is continuing,
then, upon demand of the Trustee, the Company will pay to the Trustee, for the benefit of the
holders of the Securities, the whole amount that then shall have been become due and payable on all
Securities for principal (and premium, if any) or interest, or both, as the case may be, with
interest upon the overdue principal (and premium, if any) and (to the extent that payment of such
interest is enforceable under applicable law) upon overdue installments of interest at the rate per
annum expressed in the Securities; and, in addition thereto, such further amount as shall be
sufficient to cover the costs and expenses of collection, and the amount payable to the Trustee
under Section 7.07 of the Original Indenture.

(b) If the Company shall fail to pay such amounts forthwith upon such demand, the Trustee, in
its own name and as trustee of an express trust, shall be entitled and empowered to institute any
action or proceedings at law or in equity for the collection of the sums so due and unpaid, and may
prosecute any such action or proceeding to judgment or final decree, and may enforce any such
judgment or final decree against the Company or other obligor upon the Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of the property of the
Company or other obligor upon the Securities, wherever situated.

(c) In case of any receivership, insolvency, liquidation, bankruptcy, reorganization,
readjustment, arrangement, composition or judicial proceedings affecting the Company, or its
creditors or property, the Trustee shall have power to intervene in such proceedings and take any
action therein that may be permitted by the court and shall (except as may be otherwise provided by
law) be entitled to file such proofs of claim and other papers and documents as may be necessary or
advisable in order to have the claims of the Trustee and of the holders of Securities allowed for
the entire amount due and payable by the Company under the Indenture at the date of institution of
such proceedings and for any additional amount that may become due and payable by the Company after
such date, and to collect and receive any moneys or other property payable or deliverable on any
such claim, and to distribute the same after the deduction of the amount payable to the Trustee
under Section 7.07 of the Original Indenture; and any receiver, assignee or trustee in bankruptcy
or reorganization is hereby authorized by each of the holders of Securities to make such payments
to the Trustee, and, in the event that the Trustee shall consent to the making of such payments
directly to such Holders, to pay to the Trustee any amount due it under Section 7.07 of the
Original Indenture.

(d) All rights of action and of asserting claims under this Indenture or the Securities, may
be enforced by the Trustee without the possession of any of such Securities, 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 payment to the Trustee of any amounts due under
Section 7.07 of the Original Indenture, be for the ratable benefit of the holders of the
Securities. In case of an Event of Default hereunder, 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 the Trustee shall deem

 

40

 

most effectual to protect and enforce any of such rights, either at law or in equity or in
bankruptcy or otherwise, whether for the specific enforcement of any covenant or agreement
contained in the 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.
Nothing contained herein shall be deemed to authorize the Trustee to authorize or consent to or
accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or
composition affecting the Securities or the rights of any holder thereof or to authorize the
Trustee to vote in respect of the claim of any Holder in any such proceeding.

Section 8.11. Priorities. Any moneys collected by the Trustee pursuant to this Article 8 with
respect to the Securities shall be applied in the following order, at the date or dates fixed by
the Trustee and, in case of the distribution of such moneys on account of principal (or premium, if
any) or interest, upon presentation of the Securities, and, in the case of Global Securities,
reflection of the payment in the books and records of the Trustee and Depository, or, in the case
of Certificated Securities, a notation thereon of the payment, if only partially paid, and upon
surrender thereof if fully paid:

FIRST: To the payment of costs and expenses of collection and of all amounts payable to the
Trustee under Section 7.07 of the Original Indenture;

SECOND: To the payment of the amounts then due and unpaid upon the Securities for principal
(and premium, if any) and interest, in respect of which or for the benefit of which such money has
been collected, ratably, without preference or priority of any kind, according to the amounts due
and payable on such Securities for principal (and premium, if any) and interest, respectively.

THIRD: To the Company.

Section 8.12. Undertaking For Costs. 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, a court in its discretion may require the filing by any party litigant in the suit of an
undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable
costs, including reasonable attorneys’ fees and expenses, against any party litigant in the suit,
having due regard to the merits and good faith of the claims or defenses made by the party
litigant. This Section 8.12 does not apply to a suit made by the Trustee, a suit by a Holder
pursuant to Section 8.08, or a suit by Holders of more than 10% in aggregate principal amount of
the Securities then outstanding.

ARTICLE 9

TRUSTEE

Section 9.01. General. Article VII of the Original Indenture is hereby supplemented as
reflected in Section 9.01 and 9.02 hereof and by adding the provisions of Sections 9.04, 9.05 and
9.06 of this Article 9 to the end of Article VII of the Original Indenture as Sections 7.15, 7.16
and 7.17 thereof, and notwithstanding anything to the contrary contained in this First Supplemental
Indenture, the provisions of this Article 9 shall apply with respect to all Debt Securities issued
under the Original Indenture.

Section 9.02. Certain Duties and Responsibilities of Trustee. Section 7.01 of the Original
Indenture is hereby supplemented by adding the following at the end thereof:

(c) Whether or not therein expressly so provided, every provision of this Indenture relating
to the conduct or affecting the liability or affording protection to the Trustee shall be subject
to the provisions of this Section.

Section 9.03. Concerning the Trustee. Section 7.03 of the Original Indenture is hereby
supplemented by adding the following at the end thereof:

(h) the Trustee shall not be liable for any action taken, suffered, or omitted to be taken by
it in good faith and reasonably believed by it to be authorized or within the discretion or rights
or powers conferred upon it by this Indenture;

 

41

 

(i) in no event shall the Trustee be responsible or liable for special, indirect, or
consequential loss or damage of any kind whatsoever (including, but not limited to, loss of
profit) irrespective of whether the Trustee has been advised of the likelihood of such loss or
damage and regardless of the form of action;

(j) the Trustee shall not be deemed to have notice of any Default or Event of Default unless
a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any
event which is in fact such a default is received by the Trustee at the Corporate Trust Office of
the Trustee, and such notice references the Securities and this Indenture;

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

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

Section 9.04. Expenses. (a) When the Trustee incurs expenses or renders services in
connection with an Event of Default, the expenses (including the reasonable charges and expenses of
its counsel) and the compensation for the services are intended to constitute expenses of
administration under any applicable Federal or state bankruptcy, insolvency or other similar law.

(b) The provisions of this Section and Section 7.07 of the Original Indenture shall survive
the termination of this Indenture.

Section 9.05. Supplemental Indentures. In executing, or accepting the additional trusts
created by, any supplemental indenture permitted by this Indenture or the modification thereby of
the trusts created by this Indenture, the Trustee shall receive, and shall be fully protected in
relying upon, an Opinion of Counsel and an Officers’ Certificate stating that the execution of such
supplemental indenture is authorized or permitted by this Indenture. The Trustee may, but shall
not be obligated to, enter into any such supplemental indenture which affects the Trustee’s own
rights, duties or immunities under this Indenture or otherwise.

Section 9.06. Reliance. The Trustee agrees to accept and act upon instructions or directions
pursuant to this Indenture sent by unsecured e-mail, pdf, facsimile transmission or other similar
unsecured electronic methods, provided, however, that the Trustee shall have received an incumbency
certificate listing persons designated to give such instructions or directions and containing
specimen signatures of such designated persons, which such incumbency certificate shall be amended
and replaced whenever a person is to be added or deleted from the listing. If the Company elects
to give the Trustee e-mail or facsimile instructions (or instructions by a similar electronic
method) and the Trustee in its discretion elects to act upon such instructions, the Trustee’s
understanding of such instructions shall be deemed controlling. The Trustee shall not be liable for
any losses, costs or expenses arising directly or indirectly from the Trustee’s reliance upon and
compliance with such instructions notwithstanding such instructions conflict or are inconsistent
with a subsequent written instruction. The Company agrees to assume all risks arising out of the
use of such electronic methods to submit instructions and directions to the Trustee, including
without limitation the risk of the Trustee acting on unauthorized instructions, and the risk or
interception and misuse by third parties.

ARTICLE 10

SATISFACTION AND DISCHARGE OF INDENTURE

Section 10.01. General. Article XI of the Original Indenture shall not apply to, and have no
force and effect with respect to, the Securities and any reference to Article XI or the Sections of
Article XI of the Original Indenture shall be superseded by and references thereto shall be deemed
to refer to this Article 10 and the Sections of this Article 10, respectively, of this First
Supplemental Indenture.

Section 10.02. Satisfaction And Discharge Of Indenture. This Indenture shall upon request of
the Company contained in an Officers’ Certificate cease to be of further effect, and the Trustee,
at the expense of the
Company, shall execute proper instruments acknowledging satisfaction and discharge of this
Indenture, when (a) (i) all Securities theretofore authenticated and delivered (other than
Securities that have been destroyed, lost or stolen and which have been replaced or paid as
provided in Section 2.07 of the Original Indenture) have been delivered to the Trustee for
cancellation; or (ii) the Company has deposited with the Trustee or delivered to Holders, as
applicable, after the Securities have become due and payable, whether at the Maturity Date, any
Fundamental Change Repurchase Date, upon conversion or otherwise, cash, shares of Common Stock or a
combination thereof, as applicable, solely to satisfy the Company’s Conversion Obligation,
sufficient to pay all of the outstanding Securities and all other sums due and payable under this
Indenture by the Company; and (b) the Company has delivered to the Trustee an Officers’ Certificate
and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating
to the satisfaction and discharge of this Indenture have been complied with.

 

42

 

Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the
Company to the Trustee under Section 9.04 of this First Supplemental Indenture and Section 7.07 of
the Original Indenture shall survive and, if money shall have been deposited with the Trustee
pursuant to paragraph (a)(ii) of this Section 10.02, the provisions of Section 10.03 and Section
10.05 shall survive until the Securities have been paid in full.

Section 10.03. Application of Trust Money. Subject to the provisions of Section 10.04, the
Trustee or a Paying Agent shall hold in trust, for the benefit of the Holders, all money and shares
of Common Stock deposited with it pursuant to Section 10.02 and shall apply the deposited money and
shares of Common Stock in accordance with this Indenture and the Securities to the payment or
delivery, as the case may be, of the principal of, and interest on, and the consideration due upon
conversion of, the Securities; provided that such money and shares of Common Stock need not be
segregated from other funds except to the extent required by law.

Section 10.04. Repayment to Company. The Trustee and each Paying Agent shall promptly pay to
the Company upon request any excess money or shares of Common Stock (i) deposited with them
pursuant to Section 10.02 and (ii) held by them at any time.

The Trustee and each Paying Agent shall pay to the Company upon request any money or shares of
Common Stock held by them for the payment or delivery, as the case may be, of principal, interest
or amounts due upon conversion that remains unclaimed for two years after a right to such money or
shares of Common Stock has matured; provided, however, that the Trustee or such Paying Agent,
before being required to make any such payment or delivery, may at the expense of the Company cause
to be mailed to each Holder entitled to such money or shares of Common Stock notice that such money
or shares of Common Stock remains unclaimed and that after a date specified therein, which shall be
at least 30 days from the date of such mailing, any unclaimed balance of such money or shares of
Common Stock then remaining will be repaid or delivered to the Company. After payment or delivery
to the Company, Holders entitled to money or share of Common Stock must look to the Company for
payment as general creditors unless an applicable abandoned property law designates another Person.
In the absence of a written request from the Company to return unclaimed funds or shares to the
Company, the Trustee shall from time to time deliver all unclaimed funds or shares to or as
directed by applicable escheat authorities, as determined by the Trustee in its sole discretion, in
accordance with the customary practices and procedures of the Trustee. Any unclaimed funds or
shares held by the Trustee pursuant to this Section 10.04 shall be held uninvested and without any
liability for interest.

Section 10.05. Reinstatement. If the Trustee or any Paying Agent is unable to apply any money
or shares of Common Stock in accordance with Section 10.03 by reason of any legal proceeding or by
reason of any order or judgment of any court or governmental authority enjoining, restraining or
otherwise prohibiting such application, then the Company’s obligations under this Indenture and the
Securities shall be revived and reinstated as though no deposit had occurred pursuant to Section
10.02 until such time as the Trustee or such Paying Agent is permitted to apply all such money or
shares of Common Stock in accordance with Section 10.03; provided, however, that if the Company has
made any payment or delivery, as the case may be, of the principal of, interest on, or amounts due
upon conversion of, any Securities because of the reinstatement of its obligations, the Company
shall be subrogated to the rights of the Holders of such Securities to receive any such payment or
delivery from the money or shares of Common Stock held by the Trustee or such Paying Agent.

 

43

 

ARTICLE 11

AMENDMENTS, SUPPLEMENTS AND WAIVERS

Section 11.01. General. Sections 9.01, 9.02, 9.03 and 9.04 of Article IX of the Original
Indenture shall not apply to, and have no force and effect with respect to, the Securities and any
reference to Sections 9.01, 9.02, 9.03 and 9.04 of Article IX of the Original Indenture shall be
superseded by and references thereto shall be deemed to refer to Section 11.02, 11.03, 11.04 and
11.05 of Article 11, respectively, of this First Supplemental Indenture.

Section 11.02. Without Consent of Holders. The Company and the Trustee may amend or supplement
this Indenture or the Securities without notice to, or the consent of, any Holder:

(a) to cure any ambiguity, defect or inconsistency that does not adversely affect Holders;

(b) to provide for the assumption by a successor entity of the Company’s obligations under
this Indenture;

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

(d) to secure the Company’s obligations with respect to the Securities;

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

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

(g) to add provisions for the issuance of Additional Securities;

(h) to provide for the appointment of a successor Trustee; provided that the successor
Trustee shall qualify and be eligible under Section 7.10 of the Original Indenture;

(i) to comply with any requirement of the SEC in connection with the qualification of this
Indenture under the Trust Indenture Act; and

(j) to conform the provisions of this Indenture to the “Description of Notes” section in the
Preliminary Prospectus dated November 2, 2011 relating to the offering and sale of the Securities,
as supplemented by the related Pricing Term Sheet dated November 2, 2011.

Upon the request of the Company accompanied by a resolution of its Board of Directors
authorizing the execution of any such amended or supplemental indenture, and upon receipt by the
Trustee of the documents described in Section 11.03, the Trustee shall join with the Company in the
execution of any amended or supplemental indenture authorized or permitted by the terms of this
Indenture and to make any further appropriate agreements and stipulations that may be therein
contained, but the Trustee shall not be obligated to enter into such amended or supplemental
indenture that affects its own rights, duties or immunities under this Indenture or otherwise.

Section 11.03. With Consent of Holders. The Company and the Trustee may amend or supplement
this Indenture or the Securities with the written consent of the Holders of at least a majority in
aggregate principal amount of the Securities then outstanding. The Holders of at least a majority
in aggregate principal amount of the Securities then outstanding may waive compliance in a
particular instance by the Company with any provision of this Indenture or the Securities. However,
notwithstanding the foregoing but subject to Section 11.04, without the written consent of each
Holder affected, an amendment, supplement or waiver, including a waiver pursuant to Section 8.06,
may not:

(a) change the stated maturity of the principal of, or interest on, any Security;

(b) reduce the principal amount of or interest on any Security;

 

44

 

(c) reduce the amount of principal payable upon acceleration of the maturity of any Security;

(d) change the place or currency of payment of principal of, or interest on, any Security;

(e) impair the right to institute suit for the enforcement of any payment on, or with respect
to, any Security;

(f) modify the provisions with respect to the Company’s obligation to repurchase Securities
pursuant to Article 4 upon a Fundamental Change in a manner adverse to Holders;

(g) change the ranking of the Securities;

(h) adversely affect the right of Holders to convert Securities other than as provided in or
under Article 5 of this Indenture:

(i) reduce the percentage in principal amount of outstanding Securities required for
modification or amendment of this Indenture;

(j) reduce the percentage in principal amount of outstanding Securities necessary for waiver
of compliance with Sections 8.03, 8.06 and 8.07 of this Indenture; or

(k) modify provisions of this Section 11.03 or Section 8.06 in a manner adverse to the
Holders.

It shall not be necessary for the consent of the Holders under this Section 11.03 to approve
the particular form of any proposed amendment, supplement or waiver, but it shall be sufficient if
such consent approves the substance thereof.

Upon the request of the Company accompanied by a resolution of its Board of Directors
authorizing the execution of any such amended or supplemental indenture, and upon the filing with
the Trustee of evidence satisfactory to the Trustee of the consent of the Holders as aforesaid, and
upon receipt by the Trustee of the documents described in Sections 9.05 and 13.07 of the Original
Indenture, the Trustee shall join with the Company in the execution of such amended or supplemental
indenture unless such amended or supplemental indenture directly affects the Trustee’s own rights,
duties or immunities under this Indenture or otherwise, in which case the Trustee may in its
discretion, but shall not be obligated to, enter into such amended or supplemental indenture.

After an amendment, supplement or waiver under this Section 11.03 becomes effective, the
Company shall mail to the Holders affected thereby a notice briefly describing the amendment,
supplement or waiver. Any failure of the Company to mail such notice, or any defect therein, shall
not, however, in any way impair or affect the validity of any such amendment, supplement or waiver.

Until an amendment, supplement or waiver becomes effective, a consent to it by a Holder is a
continuing consent by the Holder and every subsequent Holder of a Security or portion of a Security
that evidences the same debt as the consenting Holder’s Security, even if notation of the consent
is not made on any Security. However, any such Holder or subsequent Holder may revoke the consent
as to its Security or portion of a Security if the Trustee receives the notice of revocation before
the date the amendment, supplement or waiver becomes effective.

After an amendment, supplement or waiver becomes effective, it shall bind every Holder, unless
it makes a change described in any of clauses (a) through (k) of this Section 11.03. In that case
the amendment, supplement or waiver shall bind each Holder of a Security who has consented to it
and every subsequent Holder of a Security or portion of a Security that evidences the same debt as
the consenting Holder’s Security.

 

45

 

Section 11.04. Effect of Supplemental Indentures. Upon the execution of any supplemental
indenture pursuant to the provisions of this Article 11, including, for the avoidance of doubt, of
Section 5.07(b) or Article 7 of
this First Supplemental Indenture, this Indenture shall be and be deemed to be modified and
amended in accordance therewith and the respective rights, limitations of rights, obligations,
duties and immunities under this Indenture of the Trustee, the Company and the Holders of the
Securities shall thereafter be determined, exercised and enforced under the Indenture 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 11.05. Securities Affected by Supplemental Indentures. The Securities authenticated
and delivered after the execution of a supplemental indenture pursuant to the provisions of this
Article 11, including, for the avoidance of doubt, of Section 5.07(b) or Article 7 of this First
Supplemental Indenture, may bear a notation in form approved by the Company, provided such form
meets the requirements of any exchange upon which Securities may be listed, as to any matter
provided for in such supplemental indenture. If the Company shall so determine, new Securities so
modified as to conform, in the opinion of the Board of Directors of the Company, to any
modification of this Indenture contained in any such supplemental indenture may be prepared by the
Company, authenticated by the Trustee and delivered in exchange for the Securities then
Outstanding.

ARTICLE 12

MISCELLANEOUS

Section 12.01. General. Section 13.12 of Article XIII of the Original Indenture shall not
apply to, and have no force and effect with respect to, the Securities.

Section 12.02. Rules By Trustee, Paying Agent, Registrar And Conversion Agent. The Trustee may
make reasonable rules (not inconsistent with the terms of this Indenture) for action by or at a
meeting of Holders. Any Registrar, Paying Agent or Conversion Agent may make reasonable rules for
its functions.

Section 12.03. Governing Law. THIS INDENTURE AND THE SECURITIES, AND ANY CLAIM, CONTROVERSY OR
DISPUTE ARISING UNDER OR RELATED TO THIS INDENTURE OR THE SECURITIES, SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

Section 12.04. No Adverse Interpretation of Other Agreements. This Indenture may not be used
to interpret another indenture, loan or debt agreement of the Company or a Subsidiary of the
Company. Any such indenture, loan or debt agreement may not be used to interpret this Indenture.

Section 12.05. Successors. All the covenants, stipulations, promises and agreements in this First
Supplemental Indenture contained by or on behalf of the Company shall bind its successors and
assigns, whether so expressed or not. Any act or proceeding by any provision of this First
Supplemental Indenture authorized or required to be done or performed by any board, committee or
officer of the Company shall and may be done and performed with like force and effect by the
corresponding board, committee or officer of any corporation that shall at the time be the lawful
successor of the Company.

Section 12.06. Multiple Counterparts. This First Supplemental Indenture may be executed in any
number of counterparts, each of which shall be an original, but such counterparts shall together
constitute one and the same instrument.

Section 12.07. Separability. In case any one or more of the provisions contained in this
Indenture or in the Securities shall for any reason be held to be invalid, illegal or unenforceable
in any respect, such invalidity, illegality or unenforceability shall not affect any other
provisions of this Indenture or of such Securities, but this Indenture and such Securities shall be
construed as if such invalid or illegal or unenforceable provision had never been contained herein
or therein.

Section 12.08. Table of Contents, Headings, Etc. The table of contents, cross-reference sheet
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.

 

46

 

Section 12.09. Force Majeure. Article XIII of the Original Indenture is hereby supplemented by
adding the provisions of the following paragraph to the end of Article XIII of the Original
Indenture as Section 13.13 thereof, and notwithstanding anything to the contrary contained in this
First Supplemental Indenture, such provisions of the following paragraph shall apply with respect
to all Debt Securities issued under the Original Indenture, including, for the avoidance of doubt,
the Securities:

“Section 13.13. Force Majeure: In no event shall the Trustee be responsible or liable
for any failure or delay in the performance of its obligations hereunder arising out of or
caused by, directly or indirectly, forces beyond its control, including, without limitation,
strikes, work stoppages, accidents, acts of war or terrorism, civil or military
disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or
malfunctions of utilities, communications or computer (software and hardware) services;
provided that the Trustee shall use reasonable efforts consistent with accepted practices in
the banking industry to resume performance as soon as practicable under the circumstances.”

Section 12.10. Waiver of Jury Trial. (a) Article XIII of the Original Indenture is hereby
supplemented by adding the provisions of the following paragraph to the end of Article XIII of the
Original Indenture as Section 13.14 thereof, and notwithstanding anything to the contrary contained
in this First Supplemental Indenture, such provisions of the following paragraph shall apply with
respect to all Debt Securities issued under the Original Indenture, including, for the avoidance of
doubt, the Securities:

“Section 13.14. Waiver of Jury Trial. EACH OF THE COMPANY AND THE TRUSTEE HEREBY
IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE
SECURITIES OR THE TRANSACTIONS CONTEMPLATED HEREBY.”

Section 12.11. Calculations In Respect of Securities. The Company shall be responsible for
making all calculations called for under the Securities. All calculations made by the Company shall
be made in good faith and be final and binding on the Holders of the Securities absent manifest
error. The Company shall provide a schedule of calculations to the Trustee and the Conversion
Agent, and the Trustee and the Conversion Agent shall be entitled to conclusively rely upon the
accuracy of the calculations by the Company without independent verification. The Trustee shall
forward calculations made by the Company to any Holder of Securities upon request.

[SIGNATURE PAGE FOLLOWS]

 

47

 

IN WITNESS WHEREOF, the parties hereto have hereunto set their hands as of the date and year
first above written.

	 	 	 	 	 	 	 
	 	 	HUMAN GENOME SCIENCES, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ David P. Southwell
 

Name: David P. Southwell
	 	 
	 

	 	 	 	Title:   Executive Vice President and
Chief Financial Officer	 	 
	 
	 	 	 	 	 	 
	 	 	THE BANK OF NEW YORK MELLON TRUST	 	 
	 	 	COMPANY, N.A., AS TRUSTEE	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Natalie Lawrence
 

Name: Natalie Lawrence
	 	 
	 

	 	 	 	Title:  Associate	 	 

 

48

 

EXHIBIT A

[FORM OF FACE OF SECURITY]

[UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY 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 THE DEPOSITORY TRUST COMPANY (AND ANY PAYMENT HEREON IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. THIS
SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS
REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY IS EXCHANGEABLE FOR
SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE
LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND, UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR
IN PART FOR SECURITIES IN DEFINITIVE FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE
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.]1

 

	 	 	 
	1	 	This bracketed text should be included only if the
Security is a Global Security.

 

A-1

 

HUMAN GENOME SCIENCES, INC.

3.00% CONVERTIBLE SENIOR NOTES DUE 2018

			
	 	 	 
	No.
[    ]
	 	$                    
	 	 	 
	CUSIP No.:
[                    ]2	 	 
	ISIN No.:
[                    ]3	 	 

Human Genome Sciences, Inc., a Delaware
corporation (the “Company”, which term shall include
any successor entity under the Indenture referred to on the reverse hereof), promises to pay to
[Cede & Co.]4 [      
              ], or registered assigns, the principal sum [of            
          DOLLARS ($          
          )][(or such lesser principal amount as shall be
reflected in the books and records of
the Trustee and Depository)]4 on November 15, 2018, and interest thereon as set forth
below.

This Security shall bear interest at the rate of 3.00% per year from November 7, 2011, or from
the most recent date to which interest has been paid or provided for to, but excluding, the next
scheduled Interest Payment Date until November 15, 2018. Interest is payable semi-annually in
arrears on each May 15 and November 15, commencing on May 15, 2012, to Holders of record at the
close of business on the preceding May 1 and November 1 (whether or not such day is a Business
Day), respectively. Additional Interest will be payable as set forth in Section 8.05 of the First
Supplemental Indenture, and any reference to interest on, or in respect of, any Security therein
shall be deemed to include Additional Interest if, in such context, Additional Interest is, was or
would be payable pursuant to Section 8.05 of the First Supplemental Indenture and any express
mention of the payment of Additional Interest in any provision therein shall not be construed as
excluding Additional Interest in those provisions thereof where such express mention is not made.
Interest will be computed on the basis of a 360-day year of twelve 30-day months.

Any Defaulted Amounts shall accrue interest at a rate per year equal to the rate borne by the
Securities plus one percent subject to the enforceability thereof under applicable law, from, and
including, the relevant payment date to, but excluding, the date on which such Defaulted Amounts
shall have been paid by the Company, at its election, in accordance with Section 1.02(f) of the
First Supplemental Indenture.

The Company shall pay the principal of and interest on this Security so long as such Security
is a Global Security, in immediately available funds to the Depositary or its nominee, as the case
may be, as the registered Holder of such Security. As provided in and subject to the provisions of
the Indenture, the Company shall pay the principal of any Securities (other than Securities that
are Global Securities) at the office or agency designated by the Company for that purpose. The
Company has initially designated the Trustee as Paying Agent, Primary Registrar, Securities
Custodian and Conversion Agent and each of the Corporate Trust Office of the Trustee and the office
or agency of the Trustee in Pittsburgh, Pennsylvania, as an office or agency of the Company for
each of the aforesaid purposes.

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

 

	 	 	 
	2	 	CUSIP: 44903AN8
	 
	3	 	ISIN: US444903AN84
	 
	4	 	This bracketed text should be included only if the
Security is a Global Security.

 

A-2

 

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

[SIGNATURE PAGE FOLLOWS]

 

A-3

 

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

	 	 	 	 	 	 	 
	 	 	HUMAN GENOME SCIENCES, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Name:
	 	 
	 

	 	 	 	Title:	 	 

Attest:

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

Name:
	 	 
	 

	 	Title:	 	 
	 
	 	 	 	 
	 

	 	Dated: [                    ], 20[     ]	 	 

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

This is one of the Securities referred to in the within-mentioned Indenture.

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS TRUSTEE

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

Authorized Signatory
	 	 

 

A-4

 

[FORM OF REVERSE OF SECURITY]

HUMAN GENOME SCIENCES, INC.

3.00% CONVERTIBLE SENIOR NOTES DUE 2018

This Security is one of a duly authorized issuance of Securities of the Company, designated as
its 3.00% Convertible Senior Notes due 2018 (the “Securities”), initially limited in aggregate
principal amount of $494,500,000, all issued or to be issued under and pursuant to an Original
Indenture dated as of November 7, 2011 (the “Original Indenture”), between the Company and The Bank
of New York Mellon Trust Company, N.A. (the “Trustee”), as supplemented by the First Supplemental
Indenture dated as of November 7, 2011, between the Company and the Trustee (the “First
Supplemental Indenture”; the Original Indenture as supplemented by the First Supplemental
Indenture, the “Indenture”), 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 Securities. Additional
Securities may be issued in an unlimited aggregate principal amount, subject to certain conditions
specified 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 Security to a Paying Agent to
collect such payments in respect of the Security. The Company will pay cash amounts in money of the
United States that at the time of payment is legal tender for payment of public and private debts.

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

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

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

As provided in and subject to the provisions of the Indenture, the Holder hereof has the
right, at its option, prior to the close of business on the Business Day immediately preceding
August 15, 2018 only upon the occurrence of certain conditions specified in the Indenture, and on
or after August 15, 2018 until the close of business on the Business Day immediately preceding the
Maturity Date regardless of the occurrence of such conditions, to convert any of its Securities or
portion thereof that is $1,000 or an integral multiple thereof, into cash, shares of Common Stock
or a combination of cash and shares of Common Stock, as applicable, at the Conversion Rate
specified in the Indenture, as adjusted from time to time as provided in the Indenture.

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

 

A-5

 

In case an Event of Default, as defined in the Indenture, shall have occurred and be
continuing, the principal of all Securities may be declared, by either the Trustee or Holders of at
least 25% in aggregate principal amount of Securities then outstanding, and upon said declaration
shall become, due and payable, in the manner, with the effect and subject to the conditions and
certain exceptions set forth in the Indenture. In case an Event of Default occurs as a result of
certain events of bankruptcy, insolvency or reorganization of the Company, the principal of all
Securities then outstanding shall ipso facto become and be immediately due and payable without any
declaration or other act on the part of the Trustee or any Holder,

When a successor assumes all the obligations of its predecessor under the Securities and the
Indenture in accordance with the terms and conditions of the Indenture, the predecessor (except in
certain circumstances specified in the Indenture) shall be released from those obligations.

All terms used in this Security but not specifically defined herein are defined in the
Indenture and are used herein as so defined.

It is intended that the Securities will be treated as indebtedness and not as equity for
federal income tax purposes. The provisions of the Indenture shall be interpreted to further this
intention.

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

THE INDENTURE AND THIS SECURITY, AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR
RELATED TO THE INDENTURE OR THIS SECURITY, SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF NEW YORK.

The Company will furnish to any Holder, upon written request and without charge, a copy of the
Indenture. Requests may be made to: Human Genome Sciences, Inc., 14200 Shady Grove Road, Rockville,
Maryland 20850-7464, Attention: Investor Relations.

 

A-6

 

ABBREVIATIONS AND DEFINITIONS

Customary abbreviations may be used in the name of the Holder or an assignee, such as: TEN COM
(= tenants in common)

TEN ENT (= tenants by the entireties)

JT TEN (= joint tenants with right of survivorship and not as tenants in common) CUST (=
Custodian)

UGMA (= Uniform Gifts to Minors Act).

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

 

A-7

 

ASSIGNMENT FORM

To assign this Security, fill in the form below:

I or we assign and transfer this Security to:

 

(Insert assignee’s social security or tax I.D. number)

 

 

 

 

 

(Print or type assignee’s name, address and zip code)

and irrevocably appoint

 

agent to transfer this Security on the books of the Company. The agent may substitute another to act for him or her.

	 	 	 	 	 	 	 
	Date:

	 	 	 	Your Signature:	 	 
	 
	 	 	 	 	 	 
	 

	 	 
	 	 

(Sign exactly as your name appears on the other side of this Security)
	 	 

* Signature guaranteed by:

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

	 	 

 

	 	 	 
	*	 	The signature must be guaranteed by an institution
which is a member of one of the following recognized signature guaranty
programs: (i) the Securities Transfer Agent Medallion Program (STAMP); (ii) the
New York Stock Exchange Medallion Program (MSP); (iii) the Stock Exchange
Medallion Program (SEMP); or (iv) such other guaranty program acceptable to the
Trustee.

 

A-8

 

CONVERSION NOTICE

To convert this Security into cash, shares of Common Stock or a combination of cash and shares
of Common Stock, as applicable, check the box: o

To convert only part of this Security, state the principal amount to be converted (which must
be $1,000 or an integral multiple of $1,000): $                    

If you want the stock certificate made out in another Person’s name, fill in the form below:

 

(Insert assignee’s social security or tax I.D. number)

 

 

 

 

 

(Print or type assignee’s name, address and zip code)

	 	 	 	 	 	 	 
	Date:

	 	 	 	Your Signature:	 	 
	 
	 	 	 	 	 	 
	 

	 	 
	 	 

(Sign exactly as your name appears on the other side of this Security)
	 	 

* Signature guaranteed by:

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

	 	 

 

	 	 	 
	*	 	The signature must be guaranteed by an institution
which is a member of one of the following recognized signature guaranty
programs: (i) the Securities Transfer Agent Medallion Program (STAMP); (ii) the
New York Stock Exchange Medallion Program (MSP); (iii) the Stock Exchange
Medallion Program (SEMP); or (iv) such other guaranty program acceptable to the
Trustee.

 

A-9

 

REPURCHASE EXERCISE NOTICE UPON A FUNDAMENTAL CHANGE

To: Human Genome Sciences, Inc.

The undersigned registered owner of this Security hereby irrevocably acknowledges receipt of a
notice from Human Genome Sciences, Inc. (the “Company”) as to the occurrence of a Fundamental
Change with respect to the Company and requests and instructs the Company to repurchase the entire
principal amount of this Security, or the portion thereof (which is $1,000 or an integral multiple
thereof) below designated, in accordance with the terms of the Indenture referred to in this
Security at the Fundamental Change Repurchase Price, to the registered Holder hereof.

	 	 	 	 	 	 	 	 	 
	Dated:
	 	 	 	 	 	 	 	 
	 

	 	 

	 	 
	 	 

	 	 
	Dated:
	 	 	 	 	 	 	 	 
	 

	 	 

	 	 
	 	 

	 	 
	Dated:
	 	 	 	 	 	 	 	 
	 

	 	 

	 	 
	 	 

Signature(s)
	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	Signature(s) must be guaranteed by a qualified guarantor
institution with membership in an approved signature guarantee
program pursuant to Rule 17Ad-15 under the Securities Exchange Act of 1934.	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	 

Signature Guaranty
	 	 

Principal amount to be repurchased (in an integral multiple of $1,000, if less than all):

NOTICE: The signature to the foregoing Election must correspond to the name as written upon the
face of the Security in every particular, without alteration or any change whatsoever.

 

A-10

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00195-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00195-of-00352.parquet"}]]