Document:

exv10w4

 

EXHIBIT 10.4

 

GUARANTY

from

LENNOX INTERNATIONAL INC.,

as Guarantor

to

BTMU CAPITAL CORPORATION,

as Lessor

and

the other parties specified herein

Dated as of June 22, 2006

 

 

 

     THIS GUARANTY, dated as of June 22, 2006 (together with all amendments and supplements hereto,
this “Guaranty”), is from LENNOX INTERNATIONAL INC., a Delaware corporation (together with
its successors and assigns, “Guarantor”), having an address at 2140 Lake Park Blvd.,
Richardson, TX 75080, to BTMU CAPITAL CORPORATION, a Delaware corporation (together with its
successors and assigns, “Lessor”), having an address at 111 Huntington Avenue, Suite 400,
Boston, MA 02199, and the INDEMNITEES as such term is defined in the Lease (hereinafter defined)
(Lessor and each Indemnitee are each a “Guaranty Beneficiary” and, collectively,
“Guaranty Beneficiaries”). Terms not otherwise defined herein shall have the meanings set
forth in Appendix A to the Lease.

Preliminary Statement

     Lessor has entered into a Lease Agreement dated as of the date hereof with Lennox Procurement
Company Inc., a Delaware corporation as lessee, (together with its successors and assigns, and
together with each other Lessee from time to time, collectively, “Lessee”) relating to the
Leased Property (such Lease Agreement, as supplemented or amended from time to time, together with
any Memorandum of Lease related thereto, herein called the “Lease”). Pursuant to the terms
of the Lease, Lessee shall lease the Leased Property from Lessor for a term of years, as more
particularly set forth in the Lease. Pursuant to the terms of the Participation Agreement, Lessor
shall acquire the Land and Improvements and lease the same to Lessee, which has agreed to lease the
same from Lessor and otherwise perform certain obligations relating thereto, all as more
particularly set forth in the Lease and other Operative Documents. Guarantor is the owner,
directly or indirectly, of all of the issued and outstanding stock of Lessee.

     In order to induce Lessor to enter into the Lease and the Participation Agreement and to enter
into the leasing arrangement with Lessee, as more particularly described therein, and to induce the
Indemnitees to enter into the Transaction as contemplated by the Operative Documents, Guarantor has
entered into this Guaranty with respect to the obligations of Lessee under the Lease and the other
Operative Documents.

     NOW, THEREFORE, in consideration of the premises, and for other good and valuable
consideration, the receipt and sufficiency of which is hereby acknowledged, Guarantor agrees as
follows:

     1. Guarantor unconditionally and irrevocably guaranties, as primary obligor and not merely as
surety, to Guaranty Beneficiaries, the prompt payment and performance of all debts, duties,
liabilities and obligations of Lessee (pecuniary or otherwise) including, without limitation, all
obligations in respect of Rent, Lease Balance, Purchase Amount, End of Term Adjustment, fees,
expenses and indemnities, under the Lease, the Participation Agreement and all other Operative
Documents (all of the foregoing payment and performance obligations, collectively, the
“Guaranteed Obligations”) as and when the same shall become due and payable and in the
manner required of Lessee. This Guaranty is an irrevocable, absolute, present, primary,
continuing, unlimited and unconditional promise with respect to the full and punctual payment and
performance by Lessee of each of the Guaranteed Obligations, and is not a promise of collectibility
only, and is in no way conditional upon the requirement that any Guaranty Beneficiary first attempt
to collect payment or demand performance from Lessee or that any Guaranty Beneficiary resort to any
security or other means of obtaining such payment or

 

 

performance or upon any other contingency. If for any reason (i) any such sums shall not be
paid promptly by Lessee when due, or (ii) any such covenant, agreement, term or condition is not
performed or observed by Lessee in accordance with the Lease, the Participation Agreement or any
other Operative Document, Guarantor, shall, without notice or demand of any nature, pay the same by
wire transfer of immediately available federal funds to the Person or Persons entitled thereto
pursuant to the provisions of said instruments and shall perform and observe or cause to be
promptly performed and observed every such covenant, agreement, term and condition, in each case
regardless of (i) any defenses or rights of set-off or counterclaims which Guarantor or Lessee may
have or assert, other than the defense of payment and performance in full of the Guaranteed
Obligations, (ii) whether any Guaranty Beneficiary shall have taken any steps to enforce any rights
against Lessee or any other remedy thereunder as a result of the default of Lessee thereunder and
(iii) any other event, condition, contingency or circumstance whatsoever. Guarantor also agrees to
pay to such Persons such further amounts as shall be sufficient to cover the costs and expenses of
collecting such sums or any part thereof, or of otherwise enforcing or protecting the rights of
such Persons under the Lease, the Participation Agreement, the other Operative Documents and this
Guaranty, including reasonable fees and expenses of its attorneys and to Lessor and its attorneys
for all services rendered in that connection and in any related proceeding.

     2. The obligations, covenants, agreements and duties of Guarantor under this Guaranty shall be
absolute and unconditional, shall not be subject to any counterclaim, setoff, deduction,
diminution, abatement, recoupment, suspension, deferment, reduction or defense based upon any claim
that Guarantor or any other Person may have against Lessee, any Guaranty Beneficiary or any other
Person, and, until the payment or performance in full of the Guaranteed Obligations, shall remain
in full force and effect without regard to, and shall not be released, discharged or in any way
affected by, any circumstance or condition whatsoever (whether or not any Guaranty Beneficiary,
Guarantor or Lessee shall have any knowledge or notice thereof), including, without limitation, the
happening from time to time of any of the following, although without notice to, or the consent of,
Guarantor:

	 	(a)	 	the waiver by any Guaranty Beneficiary of the performance or observance by
Lessee, Guarantor or any other party of any of the agreements, covenants, terms or
conditions contained in the Lease, the Participation Agreement, this Guaranty or any
other instrument or Operative Document;
	 
	 	(b)	 	the extension, in whole or in part, of the time for payment by Lessee or
Guarantor of any sums owing or payable under the Lease, the Participation Agreement,
this Guaranty or any other Operative Document, as applicable, or of any other sums of
obligations under or arising out of or on account of the Lease, the Participation
Agreement, this Guaranty or any other Operative Document or the renewal or extension of
either thereof;
	 
	 	(c)	 	any assignment or subsequent reassignment of the Lease, the Participation
Agreement, this Guaranty or any other Operative Document, in whole or in part, or the
leasing or subletting of the Leased Property or any part thereof;

2

 

	 	(d)	 	the modification or amendment (whether material or otherwise) of any of the
obligations of Lessee or Guarantor under the Lease, the Participation Agreement, this
Guaranty or any other Operative Document, as applicable;
	 
	 	(e)	 	the taking or the omission by Lessee of any of the acts referred to in the
Lease, the Participation Agreement, this Guaranty or any other Operative Document
(including, without limitation, any such acts or omissions to which Lessor or
Administrative Agent has given any consent referred to herein or therein);
	 
	 	(f)	 	any failure, omission or delay on the part of any Guaranty Beneficiary to
enforce, assert or exercise any right, power or remedy conferred on or available to
such Guaranty Beneficiary in or by the Lease, the Participation Agreement, any other
Operative Document, this Guaranty or any other instrument, or any action on the part of
any Guaranty Beneficiary granting indulgence or extension in any form whatsoever;
	 
	 	(g)	 	the voluntary or involuntary liquidation, dissolution, sale of all or
substantially all of the assets, marshaling of assets and liabilities, receivership,
conservatorship, insolvency, bankruptcy, assignment for the benefit of creditors,
reorganization, arrangement, composition or readjustment of, or other similar
proceeding affecting, any Guaranty Beneficiary, Lessee, Guarantor or any other Person
or any of their respective assets;
	 
	 	(h)	 	the release of Lessee or Guarantor from the performance or observance of any of
the agreements, covenants, terms or conditions contained in the Lease, the
Participation Agreement, this Guaranty or any other Operative Document, as applicable,
by operation of law or otherwise, or any assignment or reassignment thereof or of this
Guaranty, as applicable, or any invalidity or unenforceability of the Lease, the
Participation Agreement, this Guaranty or any other Operative Document;
	 
	 	(i)	 	any defect in the title, or any damage to or loss or destruction of, or any
interruption or cessation in the use of the Leased Property or any portion thereof by
Lessee for any reason whatsoever (including, without limitation, any governmental
prohibition or restriction, condemnation, requisition, or any other act on the part of
any governmental authority) regardless of the duration thereof (even though such
duration would otherwise constitute a frustration of the Lease, the Participation
Agreement or any other Operative Document, as the case may be), whether or not
resulting from accident and whether or not without fault on the part of Lessee or any
other Person;
	 
	 	(j)	 	the inability of any Guaranty Beneficiary to enforce any provision of the
Lease, the Participation Agreement or any other Operative Document against Lessee for
any reason including due to any invalidity thereof or claim thereof;

3

 

	 	(k)	 	any merger or consolidation of Lessee or Guarantor into or with any other
Person or any sale, lease or transfer of any of the assets of Lessee or Guarantor to
any other Person;
	 
	 	(l)	 	any change in the corporate relationship between Guarantor and Lessee;
	 
	 	(m)	 	the acceptance and release by any Guaranty Beneficiary of any other security or
guarantor for any obligation hereunder;
	 
	 	(n)	 	any value, estimation, termination, rejection, discharge or disaffirmance by
any Person (including trustees, trustees in bankruptcy, liquidators or representatives)
of the Guaranteed Obligations in connection with any insolvency, bankruptcy,
reorganization or liquidation of Lessee or any proceeding relating thereto;
	 
	 	(o)	 	any determination or claim that any Guaranty Beneficiary’s claims against
Lessee are or may be limited by Section 502(b) (6) of the Bankruptcy Code, as amended,
or to any similar or successor provision of law upon any rejection of the Lease, the
Participation Agreement or any other Operative Document in a bankruptcy proceeding
filed by or against Lessee;
	 
	 	(p)	 	any failure (except to the extent by reason of a Lessor Lien) or
recharacterization of title with respect to any Guaranty Beneficiary’s, Lessee’s or any
other Person’s interest in the Leased Property or other property relative to the
Transaction; or
	 
	 	(q)	 	any other occurrence or circumstance whatsoever, whether similar or dissimilar
to the foregoing and any other circumstance that might otherwise constitute a legal or
equitable defense or discharge of the liabilities of a guarantor or surety or that
might otherwise limit recourse against Guarantor.

     The obligations of Guarantor set forth herein constitute the full recourse obligations of
Guarantor enforceable against Guarantor to the full extent of all its assets and properties. In no
event shall the obligations of Guarantor hereunder be subordinated in any manner to any other full
recourse obligations of Guarantor.

     3. Guarantor unconditionally waives (i) notice of any of the matters referred to in Section 2,
(ii) all notices that may be required by statute, rule of law or otherwise, now or hereafter in
effect, to preserve intact any rights against Guarantor, including, without limitation, any demand,
presentment and protest, proof of notice of non-payment under the Lease, the Participation
Agreement or any other Operative Document and notice of Default or Event of Default under the
Lease, the Participation Agreement, this Guaranty or any other Operative Document, or any failure
on the part of Lessee to perform and comply with any covenant, agreement, term or condition of the
Lease, the Participation Agreement or any other Operative Document, (iii) any right to the
enforcement, assertion or exercise against Lessee of any right, power, privilege or remedy
conferred in the Lease, the Participation Agreement, any other Operative Document or otherwise,
(iv) any requirement of diligence on the part of any Guaranty Beneficiary or any other Person, (v)
any requirement that any Guaranty Beneficiary take any steps to enforce any rights against Lessee
under the Lease, the Participation Agreement, or any

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other Operative Document or any other remedy thereunder or any other requirement to exhaust
any remedies or to mitigate the damages resulting from any default, Default or Event of Default
under the Lease, the Participation Agreement, any other Operative Document or this Guaranty, (vi)
any notice of any sale, transfer or other disposition of any right, title to or interest in the
Lease, the Participation Agreement or any other Operative Document or the Leased Property covered
thereby by any Guaranty Beneficiary, (vii) all rights and defenses of Guarantor as a surety under
the laws of the states in which the Leased Property is located, as the same may be amended, and
(viii) any other circumstance whatsoever that might otherwise constitute a legal or equitable
discharge, release or defense of a guarantor or surety, or that might otherwise limit recourse
against Guarantor hereunder.

     4. In each case until all of the Guaranteed Obligations are fully and finally paid and
performed, Guarantor hereby waives (i) any claim, right or remedy that Guarantor may now or
hereafter acquire against Lessee that arises hereunder and/or by reason of any one or more payments
or acts of performance by Guarantor hereunder, including without limitation, any claim, remedy or
right of subrogation, reimbursement, exoneration, contribution, indemnification or participation in
any claim, right or remedy of any Guaranty Beneficiary against Lessee or any security that any
Guaranty Beneficiary now has or hereafter acquires, whether or not such claim, right or remedy
arises in equity, under contract, by statute, under common law or otherwise, (ii) any right to
enforce any remedy which Lessee or any other guarantor of Lessee’s obligations now has or may
hereafter have against any Guaranty Beneficiary or its assigns, and (iii) any right to enforce or
exercise the benefit of and any right to participate in, any security now or hereafter held by any
Guaranty Beneficiary. If any amount shall nevertheless be paid to Guarantor by any such Person in
violation of this Guaranty, such amount shall be held by Guarantor in trust for the benefit of
Guaranty Beneficiaries and shall forthwith be paid to the Guaranty Beneficiary to whom such amount
is due. Guarantor further waives any defense to the recovery by any Guaranty Beneficiary from
Guarantor of any deficiency or otherwise to the enforcement of this Guaranty after a judicial or
nonjudicial sale or other disposition of any security for or any of the obligations of Lessee under
the Lease, the Participation Agreement or any other Operative Document even though such a sale may
prevent Guarantor from exercising rights of subrogation, if any, contribution or reimbursement
against Lessee or any other party. No payment hereunder by Guarantor shall give rise to any claim
by Guarantor against any Guaranty Beneficiary, except for payments made in error by Guarantor to
the extent such payments are in excess of amounts due hereunder. Unless and until all obligations
of Lessee under and pursuant to the Lease, the Participation Agreement and the other Operative
Documents, and of Guarantor hereunder, shall have been discharged by payment or performance in
full, Guarantor shall not assign or otherwise transfer any such claim against Lessee to any other
Person.

     5. The following events shall constitute Events of Default under this Guaranty:

          (i) Guarantor shall fail to pay or perform any Guaranteed Obligation pursuant to this Guaranty
upon demand therefor, or

          (ii) the occurrence of a Lease Event of Default;

then, in each such case, so long as the same shall be continuing, any Guaranty Beneficiary may, at
its option, declare this Guaranty in default, and at any time thereafter, any Guaranty

5

 

Beneficiary shall be entitled to exercise any remedy available to it at law or in equity. No
express or implied waiver by any Guaranty Beneficiary of an Event of Default hereunder shall in any
way be, or be construed to be a waiver of any further or subsequent Event of Default. Guarantor
hereby waives any right now or hereinafter conferred upon it by statute or otherwise which may
limit or modify any of any Guaranty Beneficiary’s rights and remedies contained herein. Guarantor
agrees to give written notice to Lessor and Administrative Agent (a) of any Event of Default
hereunder promptly after the occurrence thereof and (b) of any Event of Default hereunder, any
Event of Default under the Lease, or any breach or default of any provision of the Participation
Agreement or any other Operative Document, immediately after any Responsible Officer of Guarantor
obtains Actual Knowledge of the occurrence thereof.

     6. Without in any way limiting or otherwise affecting Guarantor’s Guaranteed Obligations
contained herein, Guarantor also agrees in the event of a Default or Event of Default under the
Lease, Guarantor may and, in the event of the rejection or disaffirmation of the Lease by Lessee as
debtor in possession or Lessee’s trustee in bankruptcy pursuant to any Bankruptcy Law, shall and
does hereby (without the necessity of any further agreement or act), assume all obligations and
liabilities of Lessee under the Lease to the same extent as if it had been originally named instead
of such Lessee as a party to such documents and there had been no such rejection or disaffirmance;
and Guarantor shall confirm such assumption in writing at the request of any Guaranty Beneficiary
upon or after such rejection or disaffirmance. Guarantor, upon such assumption, will have all
rights and obligations of Lessee under the Lease. From and after the date of such assumption, as
provided in this Section 6, all provisions of this Guaranty shall continue in full force and effect
as separate and independent undertakings of Guarantor, binding upon and enforceable against
Guarantor without regard to the validity or enforceability of such assumption, and all provisions
of this Guaranty applicable to the Lease and to Guaranty Beneficiaries and Lessee in respect of the
Lease shall also apply to such assumption and to any Guaranty Beneficiaries and Guarantor in
respect of such assumption to the same extent and in the same manner as such provisions are
applicable to the Lease and to Guaranty Beneficiaries and Lessee in respect of the Lease.

     7. It is agreed that the liabilities and obligations of Guarantor hereunder are primary and
those of a principal, and are enforceable either before, simultaneously with or after proceeding
against Lessee or against any property or security available to any Guaranty Beneficiary.

     8. This Guaranty may not be modified or amended except by a written agreement duly executed by
Guarantor with the consent in writing of Lessor and Administrative Agent in accordance with Section
8.4 of the Participation Agreement. Neither this Guaranty, nor any of the obligations of Guarantor
hereunder may be assigned to any Person or entity by Guarantor.

     9. Guarantor understands and acknowledges that Lessor will enter into one or more financings
to finance the acquisition of the Leased Property pursuant to which Lessor will encumber its
interests in the Lease and Leased Property. In connection with any such financing, Guarantor
understands and acknowledges that Lessor may assign its rights in and to this Guaranty and
Guarantor hereby agrees that: (i) Lessor may assign its rights hereunder to the Administrative
Agent in connection therewith; (ii) in connection with any such assignment by Lessor, Guarantor
will consent in writing thereto; and (iii) from and after such assignment, the

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rights and benefits of Lessor hereunder shall inure to the benefit of, and be exercisable by
any assignee, pursuant to and in accordance with the terms of such assignment.

     10. Guarantor agrees that from time to time so long as this Guaranty is in effect (but not
more frequently than annually, except upon and after the occurrence of a Default or Event of
Default), it will promptly, but in no event later than fifteen (15) days after request by any
Guaranty Beneficiary, or any assignee, execute, acknowledge and deliver to such party a certificate
stating: (i) that this Guaranty is unmodified and in full force and effect (or if there have been
modifications, that this Guaranty is in full force and effect as modified, and identifying such
modification agreements); (ii) whether or not there is an existing default or Event of Default
hereunder and, if there is any such default or Event of Default, specifying the nature and extent
thereof; and (iii) whether or not there are any setoffs, defenses or counterclaims against
enforcement of the obligations to be performed hereunder existing in favor of Guarantor. Guarantor
further agrees that it will upon five (5) day’s prior notice from Lessor execute and deliver to
Lessor’s mortgagee a certificate stating the above.

     11. All agreements, representations and warranties contained herein or made in writing by
Guarantor shall survive the execution and delivery of this Guaranty.

     12. This Guaranty shall be binding upon, and inure to the benefit of, the parties hereto and
their respective successors and assigns.

     13. THIS GUARANTY SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, AND GOVERNED BY, THE
LAWS OF THE STATE OF NEW YORK (INCLUDING FOR SUCH PURPOSE SECTIONS 5-1401 AND 5-1402 OF THE GENERAL
OBLIGATIONS LAW OF THE STATE OF NEW YORK). THIS GUARANTY AND THE OTHER OPERATIVE DOCUMENTS
CONSTITUTE THE ENTIRE UNDERSTANDING AMONG THE PARTIES HERETO WITH RESPECT TO THE SUBJECT MATTER
HEREOF AND SUPERSEDE ANY PRIOR AGREEMENTS, WRITTEN OR ORAL, WITH RESPECT THERETO.

     ANY LITIGATION BASED HEREON, OR ARISING OUT OF, UNDER, OR IN CONNECTION WITH, THIS GUARANTY OR
ANY OTHER OPERATIVE DOCUMENT, OR ANY COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS (WHETHER ORAL
OR WRITTEN) OR ACTIONS OF GUARANTOR SHALL BE BROUGHT AND MAINTAINED IN THE COURTS OF THE STATE OF
NEW YORK, NEW YORK COUNTY OR IN THE UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW
YORK; PROVIDED, HOWEVER, THAT ANY SUIT SEEKING ENFORCEMENT AGAINST ANY LEASED
PROPERTY MAY BE BROUGHT, AT THE OPTION OF THE PERSON ENFORCING THIS GUARANTY, IN THE COURTS OF ANY
JURISDICTION WHERE SUCH LEASED PROPERTY MAY BE FOUND. GUARANTOR HEREBY EXPRESSLY AND IRREVOCABLY
SUBMITS TO THE JURISDICTION OF THE COURTS OF THE STATE OF NEW YORK, NEW YORK COUNTY AND OF THE
UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK FOR THE PURPOSE OF ANY SUCH
LITIGATION AS SET FORTH ABOVE AND IRREVOCABLY AGREES TO BE BOUND BY ANY JUDGMENT RENDERED

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THEREBY IN CONNECTION WITH SUCH LITIGATION. GUARANTOR IRREVOCABLY CONSENTS TO THE SERVICE OF
PROCESS BY REGISTERED MAIL, POSTAGE PREPAID, OR BY PERSONAL SERVICE WITHIN OR WITHOUT THE STATE OF
NEW YORK. GUARANTOR HEREBY EXPRESSLY AND IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY
LAW, ANY OBJECTION WHICH IT MAY HAVE OR HEREAFTER MAY HAVE TO THE LAYING OF VENUE OF ANY SUCH
LITIGATION BROUGHT IN ANY SUCH COURT REFERRED TO ABOVE AND ANY CLAIM THAT ANY SUCH LITIGATION HAS
BEEN BROUGHT IN AN INCONVENIENT FORUM. TO THE EXTENT THAT GUARANTOR HAS OR HEREAFTER MAY ACQUIRE
ANY IMMUNITY FROM JURISDICTION OF ANY COURT OR FROM ANY LEGAL PROCESS (WHETHER THROUGH SERVICE OR
NOTICE, ATTACHMENT PRIOR TO JUDGMENT, ATTACHMENT IN AID OF EXECUTION OR OTHERWISE) WITH RESPECT TO
ITSELF OR ITS PROPERTY, GUARANTOR HEREBY IRREVOCABLY WAIVES SUCH IMMUNITY IN RESPECT OF ITS
OBLIGATIONS UNDER THIS GUARANTY AND THE OTHER OPERATIVE DOCUMENTS.

     14. Any provision of this Guaranty which is prohibited or unenforceable in any jurisdiction
shall, as to such jurisdiction, be ineffective to the extent of such prohibition or
unenforceability without invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in
any other jurisdiction.

     15. Any notice to be given under this Guaranty shall be given in the manner provided in the
Participation Agreement, addressed to Guarantor or any Guaranty Beneficiary at its address set
forth in the Participation Agreement, or as either such party may otherwise provide by notice to
the other party.

     16. GUARANTOR 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
GUARANTY OR THE TRANSACTIONS CONTEMPLATED HEREBY. THIS WAIVER IS KNOWINGLY, INTENTIONALLY AND
VOLUNTARILY MADE BY GUARANTOR; AND GUARANTOR FURTHER ACKNOWLEDGES THAT IT HAS BEEN REPRESENTED (OR
HAS HAD THE OPPORTUNITY TO BE REPRESENTED) IN THE SIGNING OF THIS GUARANTY AND IN THE MAKING OF
THIS WAIVER BY INDEPENDENT LEGAL COUNSEL, SELECTED OF ITS OWN FREE WILL, AND THAT IT HAS HAD THE
OPPORTUNITY TO DISCUSS THIS WAIVER WITH COUNSEL.

[Balance of page intentionally left blank/signature page follows]

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     IN WITNESS WHEREOF, Guarantor has caused this Guaranty to be executed under seal and delivered
as of the day and year first above written.

	 	 	 	 	 
	 	LENNOX INTERNATIONAL INC., a
 Delaware corporation

 	 
	 	By:  	/s/ Gary
A. Larson	 
	 	 	Name:  	Gary A. Larson 	 
	 	 	Title:  	Vice President, Treasurerexv4w1

 

Exhibit 4.1

 

AMERICAN MEDICAL SYSTEMS HOLDINGS, INC.,

as Issuer

THE NOTES GUARANTORS PARTY HERETO,

as Guarantors

and

U.S. BANK NATIONAL ASSOCIATION,

as Trustee

 

INDENTURE

DATED AS OF JUNE 27, 2006

31/4% CONVERTIBLE SENIOR SUBORDINATED NOTES DUE 2036

 

 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page
	Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE
	 	 	1	 
	Section 1.01 Definitions
	 	 	1	 
	Section 1.02 Other Definitions
	 	 	9	 
	Section 1.03 Trust Indenture Act Provisions
	 	 	10	 
	Section 1.04 Rules of Construction
	 	 	10	 
	Article 2 THE SECURITIES
	 	 	11	 
	Section 2.01 Form and Dating
	 	 	11	 
	Section 2.02 Execution and Authentication
	 	 	13	 
	Section 2.03 Registrar, Paying Agent and Conversion Agent
	 	 	13	 
	Section 2.04 Paying Agent to Hold Money in Trust
	 	 	14	 
	Section 2.05 Lists of Holders of Securities
	 	 	14	 
	Section 2.06 Transfer and Exchange
	 	 	14	 
	Section 2.07 Replacement Securities
	 	 	15	 
	Section 2.08 Outstanding Securities
	 	 	16	 
	Section 2.09 Treasury Securities
	 	 	16	 
	Section 2.10 Temporary Securities
	 	 	17	 
	Section 2.11 Cancellation
	 	 	17	 
	Section 2.12 Legend; Additional Transfer and Exchange Requirements
	 	 	17	 
	Section 2.13 CUSIP Numbers
	 	 	19	 
	Article 3 REDEMPTION, PURCHASE AND REPURCHASE
	 	 	19	 
	Section 3.01 Right to Redeem; Notice to Trustee
	 	 	19	 
	Section 3.02 Selection of Securities to be Redeemed
	 	 	19	 
	Section 3.03 Notice of Redemption
	 	 	20	 
	Section 3.04 Effect of Notice of Redemption
	 	 	21	 
	Section 3.05 Deposit of Redemption Price
	 	 	21	 
	Section 3.06 Securities Redeemed in Part
	 	 	21	 
	Section 3.07 Conversion Arrangement on Call for Redemption
	 	 	21	 
	Section 3.08 Purchase at Holders’ Option upon a Designated Event
	 	 	22	 
	Section 3.09 Effect of Designated Event Purchase Notice
	 	 	24	 
	Section 3.10 Deposit of Designated Event Purchase Price
	 	 	24	 
	Section 3.11 Repurchase of Securities at Option of the Holder on Specified Dates
	 	 	25	 
	Section 3.12 Repayment to the Company
	 	 	28	 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page
	Section 3.13 Securities Purchased in Part
	 	 	28	 
	Section 3.14 Compliance with Securities Laws upon Purchase of Securities
	 	 	28	 
	Section 3.15 Purchase of Securities in Open Market
	 	 	29	 
	Article 4 CONVERSION
	 	 	29	 
	Section 4.01 Conversion Privilege and Conversion Rate
	 	 	29	 
	Section 4.02 Conversion Procedure
	 	 	33	 
	Section 4.03 Fractional Shares
	 	 	34	 
	Section 4.04 Taxes on Conversion
	 	 	34	 
	Section 4.05 Company to Provide Stock
	 	 	34	 
	Section 4.06 Adjustment of Conversion Rate
	 	 	35	 
	Section 4.07 No Adjustment
	 	 	41	 
	Section 4.08 Notice of Adjustment
	 	 	41	 
	Section 4.09 Notice of Certain Transactions
	 	 	41	 
	Section 4.10 Effect of Recapitalization, Reclassification, Consolidation, Merger or Sale
	 	 	41	 
	Section 4.11 Trustee’s Disclaimer
	 	 	42	 
	Section 4.12 Voluntary Increase
	 	 	43	 
	Section 4.13 Payment of Cash in Lieu of Common Stock
	 	 	43	 
	Article 5 COVENANTS
	 	 	43	 
	Section 5.01 Payment of Securities
	 	 	43	 
	Section 5.02 SEC and Other Reports
	 	 	44	 
	Section 5.03 Compliance Certificates
	 	 	44	 
	Section 5.04 Further Instruments and Acts
	 	 	45	 
	Section 5.05 Maintenance of Corporate Existence
	 	 	45	 
	Section 5.06 Stay, Extension and Usury Laws
	 	 	45	 
	Section 5.07 Payment of Contingent Interest
	 	 	45	 
	Section 5.08 Maintenance of Office or Agency
	 	 	45	 
	Section 5.09 Limitation on Incurring Senior Subordinated Indebtedness
	 	 	45	 
	Article 6 CONSOLIDATION; MERGER; CONVEYANCE; TRANSFER OR LEASE
	 	 	46	 
	Section 6.01 Company May Consolidate, Etc., Only on Certain Terms
	 	 	46	 
	Section 6.02 Successor Substituted
	 	 	47	 
	Article 7 DEFAULT AND REMEDIES
	 	 	47	 
	Section 7.01 Events of Default
	 	 	47	 
	Section 7.02 Acceleration
	 	 	49	 
	Section 7.03 Other Remedies
	 	 	50	 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page
	Section 7.04 Waiver of Defaults and Events of Default
	 	 	50	 
	Section 7.05 Control by Majority
	 	 	50	 
	Section 7.06 Limitations on Suits
	 	 	50	 
	Section 7.07 Rights of Holders to Receive Payment and to Convert
	 	 	51	 
	Section 7.08 Collection Suit by Trustee
	 	 	51	 
	Section 7.09 Trustee May File Proofs of Claim
	 	 	51	 
	Section 7.10 Priorities
	 	 	52	 
	Section 7.11 Undertaking for Costs
	 	 	52	 
	Article 8 TRUSTEE
	 	 	52	 
	Section 8.01 Obligations of Trustee
	 	 	52	 
	Section 8.02 Rights of Trustee
	 	 	53	 
	Section 8.03 Individual Rights of Trustee
	 	 	55	 
	Section 8.04 Trustee’s Disclaimer
	 	 	55	 
	Section 8.05 Notice of Default or Events of Default
	 	 	55	 
	Section 8.06 Reports by Trustee to Holders
	 	 	55	 
	Section 8.07 Compensation and Indemnity
	 	 	55	 
	Section 8.08 Replacement of Trustee
	 	 	56	 
	Section 8.09 Successor Trustee by Merger, Etc
	 	 	57	 
	Section 8.10 Eligibility; Disqualification
	 	 	57	 
	Section 8.11 Preferential Collection of Claims Against Company
	 	 	57	 
	Article 9 SATISFACTION AND DISCHARGE OF INDENTURE
	 	 	57	 
	Section 9.01 Satisfaction and Discharge of Indenture
	 	 	57	 
	Section 9.02 Application of Trust Money
	 	 	58	 
	Section 9.03 Repayment to Company
	 	 	58	 
	Section 9.04 Reinstatement
	 	 	59	 
	Section 9.05 Release of Notes Guarantors
	 	 	59	 
	Article 10 AMENDMENTS; SUPPLEMENTS AND WAIVERS
	 	 	59	 
	Section 10.01 Without Consent of Holders
	 	 	59	 
	Section 10.02 With Consent of Holders
	 	 	60	 
	Section 10.03 Compliance with Trust Indenture Act
	 	 	61	 
	Section 10.04 Revocation and Effect of Consents
	 	 	61	 
	Section 10.05 Notation on or Exchange of Securities
	 	 	61	 
	Section 10.06 Trustee to Sign Amendments, Etc
	 	 	61	 
	Section 10.07 Effect of Supplemental Indentures
	 	 	61	 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page
	Article 11 SUBORDINATION
	 	 	62	 
	Section 11.01 Agreement to Subordinate
	 	 	62	 
	Section 11.02 Payment to Holders
	 	 	62	 
	Section 11.03 Subrogation of Securities
	 	 	64	 
	Section 11.04 Authorization to Effect Subordination
	 	 	65	 
	Section 11.05 Notice to Trustee
	 	 	65	 
	Section 11.06 Trustee’s Relation to Senior Debt
	 	 	66	 
	Section 11.07 No Impairment of Subordination
	 	 	66	 
	Section 11.08 Certain Conversions Deemed Payment
	 	 	66	 
	Section 11.09 Article Applicable to Paying Agents
	 	 	67	 
	Section 11.10 Senior Debt Entitled to Rely
	 	 	67	 
	Section 11.11 Reinstatement
	 	 	67	 
	Section 11.12 Actions by Holders of Senior Debt
	 	 	67	 
	Section 11.13 Subordination of Notes Guarantor
	 	 	68	 
	Article 12 GUARANTEES
	 	 	68	 
	Section 12.01 Notes Guarantee
	 	 	68	 
	Section 12.02 Execution and Delivery of the Notes Guarantees
	 	 	70	 
	Section 12.03 Limitation on Notes Guarantors’ Liability
	 	 	70	 
	Section 12.04 Rights under the Notes Guarantees
	 	 	70	 
	Section 12.05 Primary Obligations
	 	 	71	 
	Section 12.06 Notes Guarantee by Future Significant Subsidiaries
	 	 	71	 
	Section 12.07 Release of Notes Guarantors
	 	 	72	 
	Article 13 CONTINGENT INTEREST
	 	 	73	 
	Section 13.01 Contingent Interest
	 	 	73	 
	Section 13.02 Payment of Contingent Interest
	 	 	73	 
	Section 13.03 Contingent Interest Notification
	 	 	73	 
	Article 14 MISCELLANEOUS
	 	 	74	 
	Section 14.01 Trust Indenture Act Controls
	 	 	74	 
	Section 14.02 Notices
	 	 	74	 
	Section 14.03 Communications By Holders with Other Holder
	 	 	75	 
	Section 14.04 Certificate and Opinion as to Conditions Precedent
	 	 	75	 
	Section 14.05 Record Date for Vote or Consent of Holders of Securities
	 	 	76	 
	Section 14.06 Rules by Trustee, Paying Agent, Registrar and Conversion Agent
	 	 	76	 
	Section 14.07 Legal Holidays
	 	 	76	 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page
	Section 14.08 Governing Law
	 	 	76	 
	Section 14.09 No Adverse Interpretation of Other Agreements
	 	 	76	 
	Section 14.10 No Recourse Against Others
	 	 	76	 
	Section 14.11 No Security Interest Created
	 	 	76	 
	Section 14.12 Successors
	 	 	76	 
	Section 14.13 Multiple Counterparts
	 	 	77	 
	Section 14.14 Separability
	 	 	77	 
	Section 14.15 Table of Contents, Headings, Etc
	 	 	77	 
	 
	 	 	 	 
	Exhibit A
	 	 	A-1	 
	 
	 	 	 	 
	Exhibit B
	 	 	B-1	 

 

 

CROSS REFERENCE TABLE*

	 	 	 	 	 
	TIA	 	 	 	INDENTURE
	SECTION	 	 	 	SECTION
	Section
	 	310	 	14.01
	 
	 	310(a)(1)	 	8.10
	 
	 	(a)(2)	 	8.10
	 
	 	(a) (3)	 	N.A.**
	 
	 	(a) (4)	 	N.A.
	 
	 	(a) (5)	 	8.10
	 
	 	(b)	 	8.10
	 
	 	(c)	 	N.A.
	Section
	 	311	 	14.01
	 
	 	311 (a)	 	8.11
	 
	 	(b)	 	8.11
	 
	 	(c)	 	N.A.
	Section
	 	312	 	14.01
	 
	 	312(a)	 	2.05
	 
	 	(b)	 	14.03
	 
	 	(c)	 	14.03
	Section
	 	313	 	14.01
	 
	 	313(a)	 	8.06(a)
	 
	 	(b)(1)	 	N.A.
	 
	 	(b)(2)	 	8.06(a)
	 
	 	(c)	 	8.06(a)
	 
	 	(d)	 	8.06(b)
	Section
	 	314	 	14.01
	 
	 	314(a)	 	5.02(a); 5.03
	 
	 	(b)	 	N.A.
	 
	 	(c)(1)	 	2.02; 9.01; 14.04
	 
	 	(c)(2)	 	9.01; 12.04
	 
	 	(c)(3)	 	N.A.
	 
	 	(d)	 	N.A.
	 
	 	(e)	 	14.04
	 
	 	(f)	 	N.A.
	Section
	 	315	 	14.01
	 
	 	315(a)	 	8.01(b)
	 
	 	(b)	 	8.05
	 
	 	(d)	 	8.01(c)
	 
	 	(d)(2)	 	8.01(c)
	 
	 	(d)(3)	 	8.01(c)
	 
	 	(e)	 	7.11
	Section
	 	316	 	14.01
	 
	 	316 (a)	 	7.05; 10.02 (b)
	 
	 	(b)	 	7.07
	 
	 	(c)	 	14.05
	Section
	 	317	 	7.08; 7.09; 14.01
	Section
	 	318	 	14.01

 

			
	*	 	This Cross-Reference Table shall not, for any purpose, be deemed a part of this Indenture.
	 
	**	 	N.A. means Not Applicable.

 

 

     THIS INDENTURE dated as of June 27, 2006 is among American Medical Systems Holdings, Inc., a corporation duly organized under the laws of the State of Delaware (the “Company”), the Notes Guarantors (as defined herein), and U.S. Bank National Association, a national banking association organized and existing under the laws of the United States, as Trustee (the “Trustee”).

WITNESSETH:

     WHEREAS, for its lawful corporate purposes, the Company has duly authorized the issue of its 31/4% Convertible Senior Subordinated Notes due 2036 (hereinafter sometimes called the “Securities”), in an aggregate principal amount not to exceed $325,000,000 (or $373,750,000 if the over-allotment option to
purchase additional Securities granted to the Underwriters (as defined herein) pursuant to the Purchase Agreement (as defined herein) is exercised in full), and in order to provide the terms and conditions upon which the Securities are to be authenticated, issued and delivered, the Company and the Notes Guarantors have duly authorized the execution and delivery of this Indenture; and

     WHEREAS, the Securities, the certificate of authentication to be borne by the Securities, a form of guarantee, a form of assignment, a form of option to elect repayment upon a Designated Event (as defined herein), a form of option to elect repayment on a Repurchase Date (as defined herein), a form of conversion notice and certificate of transfer to be borne by the Securities are to be substantially in the
forms hereinafter provided for; and

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

     NOW, THEREFORE, THIS INDENTURE WITNESSETH:

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

ARTICLE 1

DEFINITIONS AND INCORPORATION BY REFERENCE

     Section 1.01 Definitions.

     “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.

     “AMS” means American Medical Systems, Inc., a Delaware corporation and a wholly-owned
Subsidiary of the Company.

     “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, to the extent
applicable to such transfer or exchange.

     “Beneficial Ownership” means the definition such term is given in accordance with Rule 13d-3
promulgated by the SEC under the Exchange Act.

     “Board of Directors” means (i) with respect to the Company, the board of directors of the
Company or any committee thereof authorized to act for it with respect to this Indenture and (ii)
with respect to each of the Notes Guarantors, the board of directors of such Notes Guarantor or any
committee thereof authorized to act for it with respect to this Indenture.

     “Business Day” means any weekday that is not a day on which banking institutions in The City
of New York are authorized or obligated to close.

     “Capital Stock” of any Person means any and all shares, interests, rights to purchase,
warrants, options, participations or other equivalents of or interests in (however designated)
equity of such Person, but excluding any debt securities convertible into such equity.

     “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.

     “Certificated Security” means a Security that is in substantially the form attached hereto as
Exhibit A but that does not include the information or the schedule called for by footnote 1
thereof.

     “Change of Control” means the occurrence of any of the following after the date hereof: (i)
the acquisition by any Person of Beneficial Ownership (including any syndicate or group which would
be deemed to be a “person” under Section 13(d)(3) of the Exchange Act), directly or indirectly,
through a purchase, merger or other acquisition transaction or series of transactions, of shares of
the Company’s Capital Stock entitling that 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 any acquisition by the Company, any of its Subsidiaries or any of its employee benefit
plans; or (ii) the consolidation or merger of the Company with or into any other Person, any merger
of another Person into the Company, or any conveyance, transfer, sale, lease or other disposition
of all or substantially all of the Company’s properties and assets to another Person other than to
one or more of the Company’s wholly-owned subsidiaries, provided that this clause (ii)
shall not apply to (A) any transaction (x) that does not result in any reclassification,
conversion, exchange or cancellation of outstanding shares of the Company’s Capital Stock and (y)
pursuant to which holders of the Company’s Capital Stock immediately prior to the transaction have
the entitlement to exercise, directly or indirectly, 50% or more of the total voting power of all
shares of the Capital Stock entitled to vote generally in elections of directors of the continuing
or surviving Person immediately after the transaction; or (B) any merger solely for the purpose of
changing the Company’s jurisdiction of incorporation and resulting in a reclassification,
conversion or exchange of outstanding shares of Common Stock solely into shares of common stock of
the surviving entity; or (iii) if, during any consecutive two-year period, individuals who at the
beginning of that two-year period constituted the Company’s Board of Directors, together with any
new directors whose election to the Company’s Board of Directors, or whose nomination for election
by the Company’s stockholders, was

2

 

approved by a vote of a majority of the directors then still in office who were either
directors at the beginning of such period or whose election or nomination for election was
previously so approved, cease for any reason to constitute a majority of the Company’s Board of
Directors then in office. Notwithstanding anything to the contrary set forth herein, it will not
constitute a Change of Control under clause (ii) above if 90% of the consideration for the Common
Stock (excluding cash payments for fractional shares) in the transaction or transactions otherwise
constituting a Change of Control (the “Stock-for-Stock Transaction Exception”) consists of common
stock traded on a United States national securities exchange or quoted on The Nasdaq Stock Market
or which will be so traded or quoted when issued or exchanged in connection with the Change of
Control, and as a result of such transaction or transactions the Securities become convertible
solely into cash in an amount equal to the lesser of $1,000 and the Conversion Value and, if the
Conversion Value is greater than $1,000, payment of the excess value in the form of such Common
Stock.

     “Common Stock” means the common stock of the Company, par value $0.01 per share as it exists
on the date of this Indenture and any shares of any class or classes of Capital Stock of the
Company resulting from any reclassification or reclassifications thereof, or, in the event of a
merger, consolidation or other similar transaction involving the Company that is otherwise
permitted hereunder in which the Company is not the surviving corporation, the common stock, common
equity interests, ordinary shares or depositary shares or other certificates representing common
equity interests of such surviving corporation or its direct or indirect parent corporation, and
which have no preference in respect of dividends or of amounts payable in the event of any
voluntary or involuntary liquidation, dissolution or winding-up of the Company and which are not
subject to redemption by the Company; provided, however, that if at any time there
shall be more than one such resulting class, the shares of each such class then so issuable on
conversion of Securities shall be substantially in the proportion which the total number of shares
of such class resulting from all such reclassifications bears to the total number of shares of all
such classes resulting from all such reclassifications.

     “Company” means the party named as such in the first paragraph of this Indenture until a
successor replaces it pursuant to the applicable provisions of this Indenture, and thereafter
“Company” shall mean such successor Company.

     “Contingent Interest” means such interest payable as in the manner set forth in Article 13.

     “Contingent Interest Period” means (i) the period commencing on, and including, July 1, 2011
and ending on, and including, December 31, 2011, and (ii) each six-month period from January 1 to
June 30 and from July 1 to December 31 thereafter.

     “Conversion Price” per share of Common Stock as of any day means the result obtained by
dividing (i) $1,000 by (ii) the then applicable Conversion Rate, rounded to the nearest cent.

     “Conversion Rate” means the rate at which shares of Common Stock shall be delivered upon
conversion, which rate shall be initially 51.5318 shares of Common Stock for each $1,000 principal
amount of Securities, as adjusted from time to time pursuant to the provisions of this Indenture.

     “Conversion Reference Period” means:

     (i) for Securities that are converted after the Company has delivered a
Notice of Redemption to Holders, the twenty consecutive Trading Days beginning on the third
Trading Day following the Redemption Date (in the case of Securities being converted that
were previously called for redemption, including a partial redemption, this will only apply
to those Securities that are subject to such redemption);

3

 

     (ii) for Securities that are converted during the 60 days prior to, but
excluding, any Repurchase Date or the Final Maturity Date of the Securities, the twenty
consecutive Trading Days beginning on the third Trading Day following the relevant
Repurchase Date or the Final Maturity Date; and

     (iii) in all other instances, the twenty consecutive Trading Days beginning
on the third Trading Day following the Conversion Date.

     “Conversion Value” means, for each $1,000 principal amount of Securities, the average of the
Daily Conversion Values for each of the twenty consecutive Trading Days of the Conversion Reference
Period.

     “Corporate Trust Office” means the office of the Trustee at which at any particular time the
trust created by this Indenture shall be administered, which initially will be the office of U.S.
Bank National Association located at 60 Livingston Avenue, St. Paul, Minnesota 55107, Attention:
Raymond Haverstock, Corporate Trust Services (American Medical Systems Holdings, Inc. 31/4%
Convertible Senior Subordinated Notes due 2036).

     “Credit Agreement” means the Credit and Guaranty Agreement to be entered into by and among
AMS, as borrower, the Company and certain of its direct and indirect subsidiaries, as guarantors,
CIT Capital Securities, as lead arranger, sole bookrunner and syndication agent, and CIT Healthcare
LLC, as administrative agent and collateral agent and the lenders to be identified therein, or a
substitute credit agreement entered into in lieu thereof to finance the Laserscope Acquisition,
provided that in each case, the terms and conditions of such Credit and Guaranty Agreement are
substantially consistent with the terms and conditions set forth in that certain commitment letter,
dated June 3, 2006, from CIT Healthcare LLC to AMS, and the summary of terms and conditions
attached as Exhibit A thereto, and any amendment, modification, renewal, extension, or refinancing
of such Credit and Guaranty Agreement; provided that such amended, modified, renewed,
extended, or refinanced Credit and Guaranty Agreement is (i) an unsubordinated credit facility with
a group of institutional lenders secured by a substantial portion of the assets of the Company and
its subsidiaries and guaranteed by a substantial portion of the Company’s Subsidiaries and (ii)
contains restrictions on conversion of the Securities (including, without limitation, the provision
of the Company for the cash payment upon conversion of the Securities), which restrictions shall
not be materially less favorable to the Holders than the terms of the Credit and Guaranty Agreement
as initially entered into pursuant to and as contemplated by the commitment letter.

     “Daily Conversion Value” means, with respect to any Trading Day, the product of (1) the
applicable Conversion Rate and (2) the Volume Weighted Average Price of the Company’s Common Stock
on such Trading Day.

     “Daily Share Amount” means, for each Trading Day of the Conversion Reference Period and for
each $1,000 principal amount of Securities surrendered for conversion, a number of shares (but in
no event less than zero) equal to (i) the amount of (a) the Volume Weighted Average Price for such
Trading Day multiplied by the applicable Conversion Rate, less (b) $1,000; divided by (ii) the
Volume Weighted Average Price for such Trading Day multiplied by 20.

     “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.

     “Designated Event” means the occurrence of a Change of Control or a Termination of Trading
following the original issuance of the Securities.

4

 

     “Designated Event Effective Date” means the date on which any Designated Event becomes
effective.

     “Designated Event Purchase Price” of any Security, means 100% of the principal amount of the
Security to be purchased plus accrued and unpaid interest, if any, and Contingent Interest, if any,
to, but excluding, the Designated Event Purchase Date.

     “Domestic Subsidiary” means any Subsidiary of the Company or any of the Company’s Subsidiaries
that is organized and existing under the laws of the United States of America or any state thereof
or the District of Columbia.

     “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and
regulations promulgated thereunder, as in effect from time to time.

     “Final Maturity Date” means July 1, 2036.

     “GAAP” means generally accepted accounting principles in the United States of America as in
effect from time to time, 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 Public Company Accounting Oversight Board and 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 Security in global form that is in substantially the form attached
hereto as Exhibit A and that includes the information and schedule called for in footnote 1 thereof
and which is deposited with the Depositary or its custodian and registered in the name of the
Depositary or its nominee.

     “Guarantee” means any obligation, contingent or otherwise, of any Person guaranteeing in any
manner any indebtedness of any other Person. The term “Guarantee” used as a verb has a
corresponding meaning. The term “Guarantor” shall mean any Person Guaranteeing any obligation.

     “Holder” or “Holder of a Security” means the person in whose name a Security is registered on
the Registrar’s books.

     “Indenture” means this Indenture as amended or supplemented from time to time pursuant to the
terms of this Indenture, including the provisions of the TIA that are automatically deemed to be a
part of this Indenture by operation of the TIA.

     “Interest Payment Date” means January 1 and July 1 of each year, commencing January 1, 2007.

     “Issue Date” of any Security means the date on which the Security was originally issued or
deemed issued as set forth on the face of the Security.

     “Laserscope Acquisition” means the merger of Laserscope, a California corporation
(“Laserscope”), into Kermit Merger Corp., a California corporation and an indirect Subsidiary of
the Company (“Kermit Merger Corp.”), pursuant to that certain Agreement and Plan of Merger, dated
as of June 3, 2006, among the Company, Kermit Merger Corp. and Laserscope.

5

 

     “Net Tangible Assets” means, as of any date of determination, the sum of the amounts that
would appear on a consolidated balance sheet of the Company and its Domestic Subsidiaries as the
total assets (less accumulated depreciation and amortization, allowances for doubtful receivables,
other applicable reserves and other properly deductible items) after giving effect to purchase
accounting and after deducting therefrom, current liabilities and, to the extent otherwise included
in the determination of Net Tangible Assets, the amounts of (without duplication): (a) the excess
of cost over fair market value of assets or businesses acquired; (b) unamortized debt discount and
expenses and other unamortized deferred charges, goodwill, patents, trademarks, service marks,
trade names, copyrights, licenses, organization, research and developmental expenses and other
intangible items; (c) minority interests in Domestic Subsidiaries held, directly or indirectly, by
persons other than the Company; (d) treasury stock; (e) cash or securities set aside and held in a
sinking or other analogous fund established for the purpose of redemption or other retirement of
Capital Stock to the extent such obligation is not reflected in current liabilities; and (f) the
value of any Capital Stock of any foreign Subsidiary of the Company.

     “Notes Guarantees” means Guarantees of the Company’s obligations under this Indenture and the
Securities by the Notes Guarantors in accordance with the provisions of this Indenture.

     “Notes Guarantors” means the Company’s wholly-owned Subsidiaries AMS, AMS Sales Corporation, a
Delaware corporation, and AMS Research Corporation, a Delaware corporation, and each other Person
that becomes a Guarantor of the Company’s obligations under this Indenture and the Securities
pursuant to Article 12 or who executes and delivers a supplemental indenture to this Indenture
providing for a Notes Guarantee.

     “Officer” means the Chairman or any Co-Chairman of the Board of Directors, any Vice Chairman
of the Board of Directors, the Chief Executive Officer, the President, any Vice President, the
Chief Financial Officer, the Secretary, or any Assistant Secretary of the Company or any of the
Notes Guarantors, as the case may be.

     “Officers’ Certificate” means a certificate signed on behalf of the Company or the Notes
Guarantors, as the case may be, by two Officers thereof; provided, however, that
for purposes of Sections 4.10 and 5.03, “Officers’ Certificate” means a certificate signed by (a)
the principal executive officer, principal financial officer or principal accounting officer of the
Company or any of the Notes Guarantors, as the case may be, and (b) one other Officer of the same
entity.

     “Opinion of Counsel” means a written opinion from legal counsel reasonably acceptable to the
Trustee. The counsel may be an employee of or counsel to the Company or any of the Notes
Guarantors.

     “Person” or “person” means any individual, corporation, partnership, limited liability
company, joint venture, association, joint-stock company, trust, unincorporated organization,
government or any agency or political subdivision thereof or any syndicate or group that would be
deemed to be a “person” under Section 13(d)(3) of the Exchange Act or any other entity.

     “Principal” or “principal” of a debt security, including the Securities, means the principal
of the debt security plus, when appropriate, the premium, if any, on the debt security.

     “Purchase Agreement” means that certain Purchase Agreement, dated as of June 21, 2006 among
the Company, the Notes Guarantors and the Underwriters.

     “Regular Record Date” means, with respect to each Interest Payment Date, the June 15 or
December 15, as the case may be, next preceding such Interest Payment Date.

6

 

     “Representative” means the trustee, agent or representative (if any) for an issue of Senior
Debt.

     “Responsible Officer” means, when used with respect to the Trustee, any officer within the
corporate trust services department of the Trustee with direct responsibility for the
administration of this Indenture and also means, with respect to a particular corporate trust
matter, any other officer to whom such matter is referred because of such person’s knowledge of and
familiarity with the particular subject.

     “SEC” means the Securities and Exchange Commission.

     “Securities” shall have the meaning set forth in the recitals hereto, as amended or
supplemented from time to time, that are issued under this Indenture.

     “Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations
promulgated thereunder, as in effect from time to time.

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

     “Senior Debt” means the principal of, premium, if any, interest on, including any interest
accruing after the commencement of any bankruptcy or similar proceedings, whether or not a claim
for post-petition interest is allowed as a claim in the proceeding, or termination payment with
respect to or in connection with, and all fees, costs, expenses and other amounts accrued or due on
or under, the Credit Agreement and any Guarantees thereof (including by any pledge, lien or
security interest of collateral with respect thereto), as such facility may be amended, modified or
supplemented from time to time, including any deferrals, renewals, extensions, refinancings or
refundings thereof; provided, however, the committed availability of such facility
as a result of any such deferral, renewal, extension, refinancing, refunding, amendment,
modification or supplement shall not exceed the proposed initial committed availability as of the
date hereof of $600,000,000 (provided, however, that such amount may be increased by an amount not
to exceed $50,000,000 pursuant to the terms of the Credit Agreement); provided,
further, such facility and the indebtedness thereunder is secured by the assets of the
Company.

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

     “Stock Price” means the price paid, or deemed to be paid, per share of the Common Stock in
connection with a Designated Event as determined pursuant to Section 4.01(i).

     “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
entitled (without regard to the occurrence of any contingency within the control of such Person to
satisfy) to vote in the election of directors, managers, general partners or trustees thereof is at
the time owned or controlled, directly or indirectly, by (i) such Person, (ii) such Person and one
or more Subsidiaries of such Person, or (iii) one or more Subsidiaries of such Person.

     “Termination of Trading” means the Common Stock or other stock into which the Securities are
convertible is neither listed for trading on a United States national securities exchange nor
approved for trading on an established automated over-the-counter trading market in the United
States.

     “TIA” means the Trust Indenture Act of 1939, as amended, and the rules and regulations
thereunder as in effect on the date of this Indenture, except to the extent that the Trust
Indenture Act or

7

 

any amendment thereto expressly provides for application of the Trust Indenture Act as in
effect on another date.

     “Trading Day” means any day on which The Nasdaq Stock Market or, if the Common Stock is not
quoted on The Nasdaq Stock Market, the principal national or regional securities exchange on which
the Common Stock is listed, is open for trading or, if the Common Stock is not so listed, admitted
for trading or quoted, any Business Day. A Trading Day only includes those days that have a
scheduled closing time of 4:00 p.m. (New York City time) or the then standard closing time for
regular trading on the relevant exchange or trading system.

     “Trading Price” of the Securities on any date of determination means the average of the
secondary market bid quotations per $1,000 principal amount of Securities obtained by the Trustee
for $5,000,000 principal amount of Securities at approximately 3:30 p.m., New York City time, on
such determination date from three nationally recognized securities dealers the Company selects;
provided that if three such bids cannot reasonably be obtained by the Trustee, but two such
bids are obtained, then the average of the two bids shall be used, and if only one such bid can
reasonably be obtained by the Trustee, that one bid shall be used. The Company will provide prompt
written notice to the Trustee identifying the three nationally recognized security dealers selected
by the Company. If the Trustee cannot reasonably obtain at least one bid for $5,000,000 principal
amount of Securities from a nationally recognized securities dealer, then:

     (i) for purposes of any determination of whether Contingent Interest is payable or the
amount thereof, the Trading Price per $1,000 principal amount of the Securities on any date
of determination shall equal the product of (i) the applicable Conversion Rate for the
Securities as of the date of determination and (ii) the Volume Weighted Average Price of the
Common Stock on the five Trading Days ending on such determination date; and

     (ii) for purposes of determining whether the condition to conversion of the Securities
set forth in Section 4.01(a)(7) has been satisfied, the Trading Price per $1,000 principal
amount of Securities will be deemed to be less than 98% of the product of the Volume
Weighted Average Price of the Common Stock and the Conversion Rate per $1,000 principal
amount of Securities.

     “Trustee” means the party named as such in the first paragraph of this Indenture until a
successor replaces it in accordance with the provisions of this Indenture, and thereafter means the
successor.

     “Trust Officer” means, with respect to the Trustee, any officer assigned to the Corporate
Trust Office, and also, with respect to a particular matter, any other officer to whom such matter
is referred because of such officer’s knowledge of and familiarity with the particular subject.

     “Underwriters” means Piper Jaffray & Co., Thomas Wiesel Partners LLC and KeyBanc Capital
Markets, a division of McDonald Investments Inc.

     “Vice President” when used with respect to the Company or the Trustee, means any vice
president, whether or not designated by a number or a word or words added before or after the title
“vice president.”

     “Volume Weighted Average Price” per share of Common Stock on any Trading Day means such price
as displayed on Bloomberg (or any successor service) page “AMMD EQUITY VAP” in respect of the
period from 9:30 a.m. to 4:00 p.m., New York City time, on such Trading Day; or, if such price is
not available, the Volume Weighted Average Price means the market value per share of Common Stock
on

8

 

such day as determined by a nationally recognized independent investment banking firm retained
for this purpose by the Company.

     “Voting Stock” of a Person means all classes of Capital Stock or other interests (including
partnership interests) of such Person then outstanding and normally entitled (without regard to the
occurrence of any contingency within the control of such person to satisfy) to vote in the election
of directors, managers or trustees thereof.

     Section 1.02 Other Definitions.

	 	 	 
	Term	 	Defined in Section
	“Agent Members”
	 	2.01
	“AMSG”
	 	12.06
	“Bankruptcy Law”
	 	7.01
	“Business Combination”
	 	4.10
	“Company Order”
	 	2.02
	“Conversion Trigger Price”
	 	4.01
	“Conversion Agent”
	 	2.03
	“Conversion Date”
	 	4.02
	“Current Market Price”
	 	4.06
	“Deferral Period”
	 	12.06
	“Depositary”
	 	2.01
	“Designated Event Company Notice”
	 	3.08
	“Designated Event Purchase Date”
	 	3.08
	“Designated Event Purchase Notice”
	 	3.08
	“Determination Date”
	 	4.06
	“Distributed Securities”
	 	4.06
	“Distribution Notice”
	 	4.01
	“DTC”
	 	2.01
	“Event of Default”
	 	7.01
	“Expiration Date”
	 	4.06
	“Expiration Time”
	 	4.06
	“Junior Securities”
	 	11.08
	“Legal Holiday”
	 	12.07
	“Make Whole Premium”
	 	4.01
	“Notice of Default”
	 	7.01
	“Notice of Redemption”
	 	3.03
	“Paying Agent”
	 	2.03
	“Payment Blockage Notice”
	 	11.02
	“Primary Registrar”
	 	2.03
	“Purchased Shares”
	 	4.06
	“record date”
	 	4.06
	“Receiver”
	 	7.01
	“Redemption Price”
	 	3.01
	“Redemption Date”
	 	3.01
	“Registrar”
	 	2.03

9

 

	 	 	 
	Term	 	Defined in Section
	“Repurchase Date”
	 	3.11
	“Repurchase Election Notice”
	 	3.11
	“Repurchase Notice”
	 	3.11
	“Repurchase Price”
	 	3.11
	“Rights”
	 	4.06
	“Rights Plan”
	 	4.06
	“Spinoff Securities”
	 	4.06
	“Spinoff Valuation Period”
	 	4.06
	“tender offer”
	 	4.06
	“TherMatrx”
	 	12.06
	“Triggering Distribution”
	 	4.06

     Section 1.03 Trust Indenture Act Provisions.

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

     “indenture securities” means the Securities;

     “indenture security holder” means a Holder of a Security;

     “indenture to be qualified” means this Indenture;

     “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 TIA, defined by TIA reference
to another statute or defined by any SEC rule and not otherwise defined herein have the meanings
assigned to them therein.

     Section 1.04 Rules of Construction.

     (a) Unless the context otherwise requires:

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

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

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

     (4) provisions apply to successive events and transactions;

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

10

 

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

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

     (8) all “Article,” “Exhibit” and “Section” references are to Articles,
Exhibits and Sections, respectively, of or to this Indenture unless otherwise specified
herein, and the terms “herein,” “hereof” and other words of similar import refer to this
Indenture as a whole and not to any particular Article, Section or other subdivision.

ARTICLE 2

THE SECURITIES

     Section 2.01 Form and Dating.

     The Securities and the Trustee’s certificate of authentication shall be substantially in the
respective forms set forth in Exhibit A hereto, which Exhibit is incorporated in and made part of
this Indenture. The Securities may have notations, legends or endorsements required by law, stock
exchange or automated quotation system rule or regulation 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. Each Security shall include the Notes Guarantee in the form of
Exhibit B attached hereto, executed by the Notes Guarantors existing on the date of issuance of
such Note, the terms of which Exhibit are incorporated in and made a part of this Indenture.

     (a) Global Securities In General. 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 endorsed thereon and
that the aggregate amount of outstanding Securities represented thereby may from time to time be
reduced or increased, as appropriate, to reflect replacements, exchanges, purchases, redemptions,
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 2.12 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.

     (b) Book Entry Provisions. The Company shall execute and the Trustee shall,
in accordance with this Section 2.01(b), authenticate and deliver initially one or more Global
Securities that (1) shall be registered in the name of the Depositary or its nominee, (2) shall be
delivered by the Trustee to the Depositary or pursuant to the Depositary’s instructions and (3)
shall bear legends substantially to the following effect:

11

 

“THIS SECURITY HAS BEEN ISSUED WITH ORIGINAL ISSUE DISCOUNT FOR PURPOSES OF SECTIONS 1272,
1273, AND 1275 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED. IN ADDITION, THIS SECURITY
IS SUBJECT TO THE RULES FOR DEBT INSTRUMENTS WITH CONTINGENT PAYMENTS UNDER TREASURY
REGULATION SECTION 1.1275-4(b).

THE COMPANY AGREES, AND BY PURCHASING A BENEFICIAL OWNERSHIP INTEREST IN THE SECURITIES EACH
HOLDER OF SECURITIES WILL BE DEEMED TO HAVE AGREED, FOR UNITED STATES FEDERAL INCOME TAX
PURPOSES (1) TO TREAT THE SECURITIES AS INDEBTEDNESS THAT IS SUBJECT TO TREASURY REGULATION
SECTION 1.1275-4 (THE “CONTINGENT PAYMENT REGULATIONS”) AND, FOR PURPOSES OF THE CONTINGENT
PAYMENT REGULATIONS, TO TREAT THE CASH AND FAIR MARKET VALUE OF ANY STOCK BENEFICIALLY
RECEIVED BY A BENEFICIAL HOLDER UPON ANY CONVERSION OF THE SECURITIES AS A CONTINGENT
PAYMENT, (2) TO ACCRUE INTEREST WITH RESPECT TO THE SECURITIES AS ORIGINAL ISSUE DISCOUNT ON
A CONSTANT YIELD BASIS USING THE COMPARABLE YIELD OF 31/4% PER ANNUM COMPOUNDED SEMI-ANNUALLY,
AND (3) TO BE BOUND BY THE COMPANY’S DETERMINATION OF THE “COMPARABLE YIELD” AND “PROJECTED
PAYMENT SCHEDULE,” WITHIN THE MEANING OF THE CONTINGENT PAYMENT REGULATIONS, WITH RESPECT TO
THE SECURITIES. THE COMPANY AGREES TO PROVIDE PROMPTLY TO HOLDERS OF SECURITIES, UPON
WRITTEN REQUEST, THE AMOUNT OF ORIGINAL ISSUE DISCOUNT, ISSUE PRICE, ISSUE DATE, YIELD TO
MATURITY, COMPARABLE YIELD AND PROJECTED PAYMENT SCHEDULE. ANY SUCH WRITTEN REQUEST SHOULD
BE SENT TO THE COMPANY AT THE FOLLOWING ADDRESS: 10700 BREN ROAD WEST, MINNETONKA, MINNESOTA
55343, ATTENTION: CARMEN DIERSEN, CHIEF FINANCIAL OFFICER.

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.

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THE OBLIGATIONS EVIDENCED HEREBY ARE SUBORDINATE IN THE MANNER AND TO THE EXTENT SET FORTH
IN THAT CERTAIN INDENTURE DATED AS OF EVEN DATE HEREWITH, BY AND AMONG AMERICAN MEDICAL
SYSTEMS HOLDINGS, INC., AS ISSUER, THE NOTES GUARANTORS PARTY THERETO, AS GUARANTORS, AND
U.S. BANK NATIONAL ASSOCIATION, AS TRUSTEE, AND EACH HOLDER OF THIS SECURITY, BY ITS
ACCEPTANCE HEREOF, SHALL BE BOUND BY THE PROVISIONS OF THE INDENTURE, INCLUDING WITHOUT
LIMITATION, THE SUBORDINATION TERMS THEREIN.”

     Section 2.02 Execution and Authentication.

     (a) The aggregate principal amount of Securities which may be authenticated and
delivered under this Indenture is limited to $325,000,000 aggregate principal amount ($373,750,000
aggregate principal amount if the Underwriters exercise their over-allotment option in full),
except as provided in Sections 2.06 and 2.07.

     (b) An Officer shall sign the Securities for the Company by manual or facsimile
signature. Typographic and other minor errors or defects in any such facsimile signature shall not
affect the validity or enforceability of any Security that has been authenticated and delivered by
the Trustee.

     (c) If an officer whose signature is on a Security no longer holds that office at
the time the Trustee authenticates the Security, the Security shall be valid nevertheless.

     (d) A Security shall not be valid until an authorized signatory of the Trustee by
manual or facsimile signature signs the certificate of authentication on the Security. The
signature shall be conclusive evidence that the Security has been authenticated under this
Indenture.

     (e) The Trustee shall authenticate and make available for delivery the Securities
upon receipt of a written order or orders of the Company signed by an 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.

     (f) The Trustee shall act as the initial authenticating agent. Thereafter, the
Trustee may appoint an authenticating agent acceptable to the Company to authenticate Securities.
An authenticating agent may authenticate Securities whenever the Trustee may do so. Each reference
in this Indenture to authentication by the Trustee includes authentication by such agent. An
authenticating agent shall have the same rights as an Agent to deal with the Company or an
Affiliate of the Company.

     (g) 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.

     Section 2.03 Registrar, Paying Agent and Conversion Agent.

     (a) The Company shall maintain one or more offices or agencies where Securities may
be presented for registration of transfer or for exchange (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

13

 

Securities and this Indenture may be served in the Borough of Manhattan, The City of New York.
One of the Registrars (the “Primary Registrar”) shall keep a register of the Securities and of
their transfer and exchange.

     (b) The Company shall enter into an appropriate agency agreement with any Agent not
a party to this Indenture, provided that the Agent may be an Affiliate of the Trustee. The
agreement shall implement the provisions of this Indenture that relate to such Agent. The Company
shall notify 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 5.01 and Article 9).

     (c) The Company hereby initially designates the Trustee as Paying Agent, Registrar,
Securities Custodian and Conversion Agent, and designates the Corporate Trust Office or other
agency or office of the Trustee in the Borough of Manhattan, the City of New York as an office or
agency where notices and demands to or upon the Company in respect of the Securities and this
Indenture shall be served.

     Section 2.04 Paying Agent to Hold Money in Trust.

     Prior to 11:00 a.m., New York City time, on each due date of the payment of principal of, or
interest, including Contingent Interest, on, any Securities, the Company shall deposit with the
Paying Agent a sum sufficient to pay such principal or interest, including Contingent Interest, so
becoming due. Subject to Section 9.02, a Paying Agent shall hold in trust for the benefit of
Holders of Securities or the Trustee all money held by the Paying Agent for the payment of
principal of, or interest, including Contingent Interest, on, the Securities, and shall notify the
Trustee of any failure by the Company (or any other obligor on the Securities) to make 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, including
Contingent Interest, on, any Securities, segregate the money and hold it as a separate trust fund.
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 2.05 Lists of Holders of Securities.

     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 Holders of Securities. If the Trustee is not
the Primary Registrar, the Company shall furnish to the Trustee on or before each 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 Holders of
Securities.

     Section 2.06 Transfer and Exchange.

     (a) Subject to compliance with any applicable additional requirements contained in
Section 2.12, when a Security is presented to a Registrar with a request to register a transfer
thereof or to exchange such Security for an equal principal amount of Securities of other
authorized denominations, the Registrar shall register the transfer or make the exchange as
requested; provided, however, that every Security presented or surrendered for
registration of transfer or exchange shall be duly endorsed or

14

 

accompanied by an assignment form and, if applicable, a transfer certificate each in the form
included in Exhibit A hereto, and completed in a manner satisfactory to the Registrar and duly
executed by the Holder thereof or its attorney duly authorized in writing. To permit registration
of transfers and exchanges, upon surrender of any Security for registration of transfer or exchange
at an office or agency maintained pursuant to Section 2.03, the Company shall execute and the
Trustee shall authenticate Securities of a like aggregate principal amount at the Registrar’s
request. Any exchange or transfer shall be without charge, except that the Company or the
Registrar may require payment of a sum sufficient to cover any tax or other governmental charge
that may be imposed in relation thereto; provided that this sentence shall not apply to any
exchange pursuant to Section 2.10, 2.12(a), 3.13, 4.02(e) or 10.05.

     (b) Neither the Company, any Registrar nor the Trustee shall be required to exchange
or register a transfer of (1) any Securities for a period of 15 days next preceding mailing of a
notice of Securities to be redeemed, (2) any Securities or portions thereof selected or called for
redemption (except, in the case of redemption of a Security in part, the portion thereof not to be
redeemed), or (3) any Securities or portions thereof in respect of which a Designated Event
Purchase Notice 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).

     (c) All Securities issued upon any transfer or exchange of Securities shall be valid
obligations of the Company, evidencing the same debt and entitled to the same benefits under this
Indenture, as the Securities surrendered upon such transfer or exchange.

     (d) Any Registrar appointed pursuant to Section 2.03 shall provide to the Trustee
such information as the Trustee may reasonably require in connection with the delivery by such
Registrar of Securities upon transfer or exchange of Securities.

     (e) Each Holder of a Security agrees to indemnify the Company and the Trustee
against any liability that may result from the transfer, exchange or assignment of such Holder’s
Security in violation of any provision of this Indenture and/or applicable United States federal or
state securities law.

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

     Section 2.07 Replacement Securities.

     (a) If any mutilated Security is surrendered to the Company, a Registrar or the
Trustee, and the Company, a Registrar and the Trustee receive evidence to their satisfaction of the
destruction, loss or theft of any Security, and there is delivered to the Company, the applicable
Registrar and the Trustee such security or indemnity as will be required by them to save each of
them harmless, then, in the absence of notice to the Company, such Registrar or the Trustee that
such Security has been acquired by a bona fide purchaser, the Company shall execute, and upon its
written request the Trustee shall authenticate and deliver, in exchange for any such mutilated
Security or in lieu of any such destroyed, lost or stolen Security, a new Security of like tenor
and principal amount, bearing a number not contemporaneously outstanding.

15

 

     (b) If any such mutilated, destroyed, lost or stolen Security has become or is about
to become due and payable, or is about to be purchased by the Company pursuant to Article 3, or
converted pursuant to Article 4, the Company in its discretion may, instead of issuing a new
Security, pay, purchase or convert such Security, as the case may be.

     (c) Upon the issuance of any new Securities under this Section 2.07, 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 as a result of any Securities, at the request of any Holder, being
issued to a Person other than such Holder and any other reasonable expenses (including the
reasonable fees and expenses of the Trustee or the Registrar) in connection therewith.

     (d) Every new Security issued pursuant to this Section 2.07 in lieu of any
mutilated, destroyed, lost or stolen Security shall constitute an original additional contractual
obligation of the Company, whether or not the mutilated, destroyed, lost or stolen Security shall
be at any time enforceable by anyone, and shall be entitled to all benefits of this Indenture
equally and proportionately with any and all other Securities duly issued hereunder.

     (e) The provisions of this Section 2.07 are (to the extent lawful) exclusive and
shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement
or payment of mutilated, destroyed, lost or stolen Securities.

     Section 2.08 Outstanding Securities.

     (a) Securities outstanding at any time are all Securities authenticated by the
Trustee, except for those canceled by it, those purchased pursuant to Article 3, those converted
pursuant to Article 4, those delivered to the Trustee for cancellation or surrendered for transfer
or exchange and those described in this Section 2.08 as not outstanding.

     (b) If a Security is replaced pursuant to Section 2.07, it ceases to be outstanding
unless the Company receives proof satisfactory to it that the replaced Security is held by a bona
fide purchaser.

     (c) If a Paying Agent (other than the Company or an Affiliate of the Company) holds
in respect of the outstanding Securities on a Redemption Date, Repurchase Date, Designated Event
Purchase Date or the Final Maturity Date money sufficient to pay the principal of (including
premium, if any), accrued interest and Contingent Interest, if any, on Securities (or portions
thereof) payable on that date, then on and after such Redemption Date, Repurchase Date, Designated
Event Purchase Date or Final Maturity Date, as the case may be, such Securities (or portions
thereof, as the case may be) shall cease to be outstanding and cash interest and Contingent
Interest, if any, on them shall cease to accrue; provided that any notice of such
redemption, repurchase or purchase has been given pursuant to this Indenture.

     (d) Subject to the restrictions contained in Section 2.09, a Security does not cease
to be outstanding because the Company or an Affiliate of the Company holds the Security.

     Section 2.09 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 which a Trust Officer of
the Trustee with responsibility for this Indenture actually knows are so owned shall be so
disregarded. Securities so owned which have been

16

 

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 2.10 Temporary Securities.

     Until definitive Securities are ready for delivery, the Company may prepare and execute, and,
upon receipt of a Company Order, the Trustee shall authenticate and deliver, temporary Securities.
Temporary Securities shall be substantially in the form of definitive securities but may have
variations that the Company with the consent of the Trustee considers appropriate for temporary
Securities. Without unreasonable delay, the Company shall prepare and the Trustee shall
authenticate and deliver definitive Securities in exchange for temporary Securities.

     Section 2.11 Cancellation.

     The Company at any time may deliver Securities 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 transfer, exchange, redemption, purchase, repurchase, payment or
conversion. The Trustee and no one else shall cancel, in accordance with its standard procedures,
all Securities surrendered for transfer, exchange, redemption, purchase, repurchase, payment,
conversion or cancellation and shall dispose of the cancelled Securities in accordance with its
customary procedures or deliver the canceled Securities to the Company. All Securities which are
purchased or otherwise acquired by the Company or any of its Subsidiaries prior to the Final
Maturity Date pursuant to Article 3 shall be delivered to the Trustee for cancellation, and the
Company may not hold or resell such Securities or issue any new Securities to replace any such
Securities or any Securities that any Holder has converted pursuant to Article 4.

     Section 2.12 Legend; Additional Transfer and Exchange Requirements.

     (a) 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 2.12.

     (b) The provisions below shall apply only to Global Securities:

     (1) Each Global Security authenticated under this Indenture shall be
registered in the name of the Depositary or a nominee thereof and delivered to such
Depositary or a nominee thereof or custodian therefor, and each such Global Security shall
constitute a single Security for purposes of this Indenture.

     (2) 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, and
no transfer of a Global Security in whole or in part shall be 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 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

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Depositary for such Global Security or such 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 after receiving such notice or becoming aware that the Depositary
has ceased to be a “clearing agency,” or (B) an Event of Default has occurred and is
continuing with respect to the Securities. Any Global Security exchanged pursuant to
subclause (A) above shall be so exchanged in whole and not in part, and any Global Security
exchanged pursuant to subclause (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 further 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.

     (3) Securities issued in exchange for a Global Security or any portion
thereof shall be issued in definitive, fully registered 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 the applicable legends
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 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.

     (4) Subject to clause (6) of this Section 2.12(b), 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.

     (5) In the event of the occurrence of any of the events specified in clause
(2) of this Section 2.12(b), the Company will promptly make available to the Trustee a
reasonable supply of Certificated Securities in definitive, fully registered form, without
interest coupons.

     (6) 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.

     (7) At such time as all interests in a Global Security have been converted,
canceled or exchanged for Securities in certificated form, such Global Security shall, upon
receipt thereof, be cancelled by the Trustee in accordance with standing procedures and
instructions existing between the Depositary and the Securities Custodian, subject to
Section 2.11 of this Indenture. At any time prior to such cancellation, if any interest in
a Global Security is converted, canceled

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or exchanged for Securities in certificated form, the principal amount of such Global
Security shall, in accordance with the standing procedures and instructions existing between
the Depositary and the Securities Custodian, be appropriately reduced, and an endorsement
shall be made on such Global Security, by the Trustee or the Securities Custodian, at the
direction of the Trustee, to reflect such reduction.

     As used in Sections 2.12(b), the term “transfer” encompasses any sale, pledge, transfer,
hypothecation or other disposition of any Security.

     Section 2.13 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 of redemption or purchase 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 of a redemption or purchase and that reliance may be placed only on the other
identification numbers printed on the Securities, and any such redemption, repurchase or purchase
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 3

REDEMPTION, PURCHASE AND REPURCHASE

     Section 3.01 Right to Redeem; Notice to Trustee.

     The Securities may be redeemed at the election of the Company, as a whole or from time to time
in part, at any time on or after July 6, 2011, at the redemption prices (expressed as percentages
of the principal amount of the Securities being redeemed) set forth below together with accrued and
unpaid interest, including Contingent Interest, up to, but not including, the date selected by the
Company for redemption of the Securities (such prices the “Redemption Price” and such dates the
“Redemption Date”):

	 	 	 	 	 
	Period	 	Redemption Price
	July 6, 2011 through June 30, 2012
	 	 	100.929	%
	July 1, 2012 through June 30, 2013
	 	 	100.464	%
	July 1, 2013 and thereafter
	 	 	100.000	%

provided that if the Redemption Date is an interest payment date, interest will be payable
to the Holders in whose name the Securities are registered at the close of business on the relevant
Regular Record Date.

     If the Company elects to redeem Securities pursuant to this Section 3.1 and paragraph 5 of the
Securities, it shall notify the Trustee at least 60 days (but no fewer than 25 days) prior to the
Redemption Date as fixed by the Company of the Redemption Date and the principal amount of
Securities to be redeemed. If fewer than all of the Securities are to be redeemed, the record date
relating to such redemption shall be selected by the Company and given to the Trustee, which record
date shall not be less than ten days after the date of notice to the Trustee.

     Section 3.02 Selection of Securities to be Redeemed.

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     If less than all of the Securities are to be redeemed, the Trustee shall, unless the
procedures of the Depositary require otherwise, not fewer than 20 nor more than 60 days prior to
the Redemption Date, select the Securities to be redeemed. The Trustee shall make the selection
from the Securities outstanding and not previously called for redemption, by lot, on a pro rata
basis, in such other manner as the Trustee deems appropriate or otherwise in accordance with the
applicable procedures of the Depositary. Securities in denominations of $1,000 may only be
redeemed in whole. The Trustee may select for redemption portions (equal to $1,000 or any integral
multiple thereof) of the principal of Securities that have denominations larger than $1,000.
Provisions of this Indenture that apply to Securities called for redemption also apply to portions
of Securities called for redemption.

     If any Security selected for partial redemption is converted in part before termination of the
conversion right with respect to the portion of the Security so selected, the converted portion of
such Security shall be deemed to be the portion selected for redemption. Securities that have been
converted during a selection of Securities to be redeemed shall be treated by the Trustee as
outstanding for the purpose of such selection.

     Section 3.03 Notice of Redemption.

     At least 20 days but not more than 60 days before a Redemption Date, the Company shall mail or
cause to be mailed a notice of redemption (a “Notice of Redemption”) to each Holder of Securities
to be redeemed at such Holder’s address as it appears on the Primary Registrar’s books.

     The Notice of Redemption shall identify the Securities (including CUSIP numbers) to be
redeemed and shall state:

          (1) the Redemption Date;

          (2) the Redemption Price;

          (3) the then current Conversion Rate;

          (4) the name and address of each Paying Agent and Conversion Agent;

          (5) that Securities called for redemption must be presented and surrendered to a
Paying Agent to collect the Redemption Price;

          (6) that Holders who wish to convert Securities must surrender such Securities for
conversion no later than the close of business on the Business Day immediately preceding the
Redemption Date and must satisfy the other requirements in paragraph 9 of the Securities;

          (7) that, unless the Company defaults in making the redemption payment, interest on
Securities called for redemption shall cease accruing on and after the Redemption Date and the only
remaining right of the Holder shall be to receive payment of the Redemption Price, plus accrued
interest, if any upon presentation and surrender to a Paying Agent of the Securities; and

          (8) if any Security is being redeemed in part, the portion of the principal amount
of such Security to be redeemed and that, after the Redemption Date, upon presentation and
surrender of such Security, a new Security or Securities in aggregate principal amount equal to the
unredeemed portion thereof will be issued.

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     If any of the Securities to be redeemed is in the form of a Global Security, then the Company
shall modify such notice to the extent necessary to accord with the procedures of the Depositary
applicable to redemptions. At the Company’s written request, which request shall (i) be irrevocable
once given and (ii) set forth all relevant information required by clauses (1) through (8) of the
preceding paragraph, the Trustee shall give the Notice of Redemption to each Holder in the
Company’s name and at the Company’s expense.

     Section 3.04 Effect of Notice of Redemption.

     Once the Notice of Redemption is mailed, Securities called for redemption become due and
payable on the Redemption Date and at the Redemption Price stated in the notice, except for
Securities that are converted in accordance with the provisions of Article 4. Upon presentation
and surrender to a Paying Agent, Securities called for redemption shall be paid at the Redemption
Price, plus accrued interest, including Contingent Interest, up to but not including the Redemption
Date; provided that if the Redemption Date is an interest payment date, interest will be
payable to the Holders in whose names the Securities are registered on the relevant Regular Record
Date.

     Section 3.05 Deposit of Redemption Price.

     Prior to 11:00 a.m., New York City time, on the Redemption Date, the Company shall deposit
with a Paying Agent (or, if the Company acts as Paying Agent, shall segregate and hold in trust)
money sufficient to pay the Redemption Price of all Securities to be redeemed on that date, other
than Securities or portions thereof called for redemption on that date which have been delivered by
the Company to the Trustee for cancellation or have been converted. The Paying Agent shall return
to the Company any money not required for that purpose because of the conversion of Securities
pursuant to Article 4 or, if such money is then held by the Company in trust and is not required
for such purpose, it shall be discharged from the trust.

     Section 3.06 Securities Redeemed in Part.

     Upon presentation and surrender of a Security that is redeemed in part, the Company shall
execute and the Trustee shall authenticate and deliver to the Holder a new Security equal in
principal amount to the unredeemed portion of the Security surrendered.

     Section 3.07 Conversion Arrangement on Call for Redemption.

     In connection with any redemption of Securities, the Company may arrange for the purchase and
conversion of any Securities called for redemption by an agreement with one or more investment
banks or other purchasers to purchase such Securities by paying to a Paying Agent (other than the
Company or any of its Affiliates) in trust for the Holders, on or before 11:00 a.m., New York City
time, on the Redemption Date, an amount that, together with any amounts deposited with such Paying
Agent by the Company for the redemption of such Securities, is not less than the Redemption Price
of such Securities. Notwithstanding anything to the contrary contained in this Article 3, the
obligation of the Company to pay the Redemption Price of such Securities, shall be deemed to be
satisfied and discharged to the extent such amount is so paid by such
purchasers; provided,
however, that nothing in this Section 3.07 shall relieve the Company of its obligation to pay the
Redemption Price on Securities called for redemption. If such an agreement with one or more
investment banks or other purchasers is entered into, any Securities called for redemption and not
surrendered for conversion by the Holders thereof prior to the relevant Redemption Date may, at the
option of the Company upon written notice to the Trustee, be deemed, to the fullest extent
permitted by law, acquired by such purchasers from such Holders and (notwithstanding anything to
the contrary contained in Article 4) surrendered by such purchasers for conversion, all as of

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11:00 a.m., New York City time, on the Redemption Date, subject to payment of the above amount
as aforesaid. The Paying Agent shall hold and pay to the Holders whose Securities are selected for
redemption any such amount paid to it for purchase in the same manner as it would money deposited
with it by the Company for the redemption of Securities. Without the Paying Agent’s prior written
consent, no arrangement between the Company and such purchasers for the purchase and conversion of
any Securities shall increase or otherwise affect any of the powers, duties, responsibilities or
obligations of the Paying Agent as set forth in this Indenture, and the Company agrees to indemnify
the Paying Agent from, and hold it harmless against, any loss, liability or expense arising out of
or in connection with any such arrangement for the purchase and conversion of any Securities
between the Company and such purchasers, including the costs and expenses incurred by the Paying
Agent in the defense of any claim or liability arising out of or in connection with the exercise or
performance of any of its powers, duties, responsibilities or obligations under this Indenture.

     Section 3.08 Purchase at Holders’ Option upon a Designated Event.

     (a) If a Designated Event occurs prior to the Final Maturity Date, each Holder of a
Security shall have the right, at the option of the Holder, to require the Company to repurchase
for cash all or any portion of the Securities of such Holder equal to $1,000 principal amount (or
an integral multiple thereof) at the Designated Event Purchase Price, on the date that is 40 days
after the date the Company mails the Designated Event Company Notice pursuant to subsection 3.08(b)
(the “Designated Event Purchase Date”).

     (b) On or before the 15th day after the occurrence of a Designated Event, the
Company shall mail a written notice of the occurrence of a Designated Event and of the resulting
repurchase right to the Trustee, Paying Agent and to each Holder (and to beneficial owners as
required by applicable law) (the “Designated Event Company Notice”). The Designated Event Company
Notice shall include the form of a Designated Event Purchase Notice to be completed by the Holder
and shall state:

     (1) the events causing such Designated Event;

     (2) the date (or expected date) of such Designated Event;

     (3) the last date by which the Designated Event Purchase Notice must be
delivered to elect the repurchase option pursuant to this Section 3.08;

     (4) the Designated Event Purchase Date;

     (5) the Designated Event Purchase Price;

     (6) the Holder’s right to require the Company to purchase the Securities;

     (7) the name and address of each Paying Agent and Conversion Agent;

     (8) the then effective Conversion Rate and any adjustments to the Conversion
Rate resulting from such Designated Event;

     (9) the procedures that the Holder must follow to exercise rights under
Article 4 and that Securities as to which a Designated Event Purchase Notice has been given
may be converted pursuant to Article 4 of this Indenture only to the extent that the
Designated Event Purchase Notice has been withdrawn in accordance with the terms of this
Indenture;

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     (10) the procedures that the Holder must follow to exercise rights under this
Section 3.08;

     (11) the procedures for withdrawing a Designated Event Purchase Notice;

     (12) that, unless the Company fails to pay such Designated Event Purchase
Price, Securities covered by any Designated Event Purchase Notice will cease to be
outstanding and interest and Contingent Interest, if any, will cease to accrue on and after
the Designated Event Purchase Date; and

     (13) the CUSIP number of the Securities.

     At the Company’s request, the Trustee shall give such Designated Event Company Notice in the
Company’s name and at the Company’s expense; provided, that, in all cases, the text of such
Designated Event Company Notice shall be prepared by the Company. If any of the Securities is in
the form of a Global Security, then the Company shall modify such notice to the extent necessary to
accord with the Applicable Procedures relating to the purchase of Global Securities. Concurrently
with the mailing of the Designated Event Company Notice, the Company shall cause a copy of such
Designated Event Repurchase Notice, or a summary thereof, to be published in a newspaper of general
circulation in the City of New York, New York.

     (c) A Holder may exercise its rights specified in Section 3.08(a) upon delivery of a
written notice (which shall be in substantially the form attached hereto as Exhibit A under the
heading “Designated Event Purchase Notice” and which may be delivered by letter, overnight courier,
hand delivery, facsimile transmission or in any other written form and, in the case of Global
Securities, may be delivered electronically or by other means in accordance with the Depositary’s
Applicable Procedures) of the exercise of such rights (a “Designated Event Purchase Notice”) to the
Company or any Paying Agent at any time prior to the close of business on the Business Day next
preceding the Designated Event Purchase Date, subject to extension to comply with applicable law.

     (1) The Designated Event Purchase Notice shall state: (A) the certificate
number (if such Security is held other than in global form) of the Security which the Holder
will deliver to be purchased (or, if the Security is held in global form, any other items
required to comply with the Applicable Procedures), (B) the portion of the principal amount
of the Security which the Holder will deliver to be purchased and (C) that such Security
shall be purchased as of the Designated Event Purchase Date pursuant to the terms and
conditions specified in the Securities and in this Indenture.

     (2) The delivery of a Security for which a Designated Event Purchase Notice
has been timely delivered to any Paying Agent and not validly withdrawn prior to, on or
after the Designated Event Purchase Notice (together with all necessary endorsements) at the
office of such Paying Agent shall be a condition to the receipt by the Holder of the
Designated Event Purchase Price therefor.

     (3) The Company shall only be obliged to purchase, pursuant to this Section
3.08, a portion of a Security if the principal amount of such portion is $1,000 or an
integral multiple of $1,000 (provisions of this Indenture that apply to the purchase of all
of a Security also apply to the purchase of such portion of such Security).

     (4) Notwithstanding anything herein to the contrary, any Holder delivering to
a Paying Agent the Designated Event Purchase Notice contemplated by this Section 3.08(c)
shall

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have the right to withdraw such Designated Event Purchase Notice in whole or in a
portion thereof that is a principal amount of $1,000 or in an integral multiple thereof at
any time prior to the close of business on the Business Day prior to the Designated Event
Purchase Date by delivery of a written notice of withdrawal to the Paying Agent in
accordance with Section 3.09.

     (5) A Paying Agent shall promptly notify the Company of the receipt by it of
any Designated Event Purchase Notice or written withdrawal thereof.

     (6) Anything herein to the contrary notwithstanding, in the case of Global
Securities, any Designated Event Purchase Notice may be delivered or withdrawn and such
Securities may be surrendered or delivered for purchase in accordance with the Applicable
Procedures as in effect from time to time.

     Section 3.09 Effect of Designated Event Purchase Notice.

     (a) Upon receipt by any Paying Agent of a properly completed Designated Event
Purchase Notice from a Holder, the Holder of the Security in respect of which such Designated Event
Purchase Notice was given shall (unless such Designated Event Purchase Notice is withdrawn as
specified in Section 3.09(b)) thereafter be entitled to receive the Designated Event Purchase Price
with respect to such Security, subject to the occurrence of the Designated Event Effective Date and
an absence of an Event of Default, or a continuation thereof (other than a Default in the payment
of the Designated Event Purchase Price). Such Designated Event Purchase Price shall be paid to
such Holder promptly following the later of (1) the Designated Event Purchase Date (provided that
the conditions in Section 3.08 have been satisfied) and (2) the time of delivery of such Security
to a Paying Agent by the Holder thereof in the manner required by Section 3.08(c). Securities in
respect of which a Designated Event Purchase Notice has been given by the Holder thereof may not be
converted pursuant to Article 4 on or after the date of the delivery of such Designated Event
Purchase Notice unless such Designated Event Purchase Notice has first been validly withdrawn in
accordance with Section 3.09(b) with respect to the Securities to be converted.

     (b) A Designated Event Purchase Notice may be withdrawn by means of a written notice
(which may be delivered by mail, overnight courier, hand delivery, facsimile transmission or in any
other written form and, in the case of Global Securities, may be delivered electronically or by
other means in accordance with the Applicable Procedures) of withdrawal delivered by the Holder to
a Paying Agent at any time prior to the close of business on the Business Day immediately prior to
the Designated Event Purchase Date, specifying (1) the principal amount of the Security or portion
thereof (which must be a principal amount of $1,000 or an integral multiple of $1,000 in excess
thereof) with respect to which such notice of withdrawal is being submitted, (2) if certificated
Securities have been issued, the certificate number of the Security being withdrawn in whole or in
withdrawable part (or if the Securities are not certificated, such written notice must comply with
the Applicable Procedures) and (3) the portion of the principal amount of the Security that will
remain subject to the Designated Event Purchase Notice, which portion must be a principal amount of
$1,000 or an integral multiple thereof.

     Section 3.10 Deposit of Designated Event Purchase Price.

     (a) On or before 10:00 a.m. New York City time on the applicable Designated Event
Purchase Date, the Company shall deposit with the Trustee or with a Paying Agent (or if the Company
or an Affiliate of the Company is acting as the Paying Agent, shall segregate and hold in trust as
provided in Section 2.04) an amount of money (in immediately available funds), sufficient to pay
the aggregate Designated Event Purchase Price of all the Securities or portions thereof that are to
be purchased as of such Designated Event Purchase Date.

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     (b) If a Paying Agent or the Trustee holds, in accordance with the terms hereof,
money sufficient to pay the Designated Event Purchase Price of any Security for which a Designated
Event Purchase Notice has been tendered and not withdrawn in accordance with this Indenture then,
immediately after the applicable Designated Event Purchase Date, such Security will cease to be
outstanding, whether or not the Security is delivered to the Paying Agent or the Trustee, and
interest and Contingent Interest, if any, shall cease to accrue, and the rights of the Holder in
respect of the Security shall terminate (other than the right to receive the Designated Event
Purchase Price as aforesaid). The Company shall publicly announce the principal amount of
Securities repurchased on or as soon as practicable after the Designated Event Purchase Date.

     (c) The Paying Agent will promptly return to the respective Holders thereof any
Securities with respect to which a Designated Event Purchase Notice has been withdrawn in
compliance with this Indenture.

     (d) If a Designated Event Purchase Date is an Interest Payment Date, then interest
on the Securities payable on such Interest Payment Date will be payable to the Holders in whose
names the Securities are registered at the close of business on such Regular Record Date.

     Section 3.11 Repurchase of Securities at Option of the Holder on Specified Dates.

     (a) The Holders may require the Company to repurchase any outstanding Securities for
cash, in accordance with the provisions of paragraph 7 of the Securities, on July 1, 2013, July 1,
2016, July 1, 2021, July 1, 2026 and July 1, 2031 (each a “Repurchase Date”) at a purchase price
per Security equal to 100% of the aggregate principal amount of the Security, together with any
accrued and unpaid interest, including Contingent Interest, to but not including the applicable
Repurchase Date (the “Repurchase Price”); provided that if such Repurchase Date is an
interest payment date, interest on the Securities will be payable to the Holders in whose names the
Securities are registered at the close of business on the relevant Regular Record Date.

     (b) The Company shall give written notice (the “Repurchase Notice”) of the
applicable Repurchase Date by notice sent by first-class mail to the Trustee and to each Holder (at
its address shown in the register of the Registrar) and to beneficial owners as required by
applicable law, not less than 20 Business Days prior to each Repurchase Date. Each Repurchase
Notice shall include a repurchase election notice, in substantially the form included in Exhibit A,
attached hereto (a “Repurchase Election Notice”) to be completed by a Holder. Each Repurchase
Notice shall state:

          (1) the Repurchase Price, the Repurchase Date and the Conversion Price in effect;

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

          (3) that Securities as to which a Repurchase Notice has been given may be converted
if they are otherwise convertible in accordance with Article 4 hereof and paragraph 9 of the
Securities only to the extent that the Repurchase Election Notice has been withdrawn in accordance
with the terms of this Indenture;

          (4) that Securities must be surrendered to the Paying Agent to collect payment;

          (5) that the Repurchase Price for any Security as to which a Repurchase Notice has
been given and not withdrawn will be paid promptly following the later of the Repurchase Date and
the time of surrender of such Security as described in subclause (4) above;

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          (6) the procedures the Holder must follow to exercise rights under this Section and
a brief description of those rights;

          (7) briefly, the conversion rights of the Securities;

          (8) the procedures for withdrawing a Repurchase Election Notice (including pursuant
to the terms of Section 3.11(d));

          (9) that, unless the Company defaults in making payment on Securities for which a
Repurchase Election Notice has been submitted, interest, if any, on such Securities will cease to
accrue on and after the Repurchase Date; and

          (10) the CUSIP number of the Securities.

If any of the Securities are to be redeemed in the form of a Global Security, the Company shall
modify such notice to the extent necessary to accord with the procedures of the Depositary
applicable to redemptions.

At the Company’s request, the Trustee shall give such Repurchase Notice on behalf of the Company
and at the Company’s expense; provided, however, that, in all cases, the text of
such Repurchase Notice shall be prepared by the Company.

     (c) Repurchases of Securities by the Company pursuant to this Section 3.11 shall be
made, at the option of the Holder thereof, upon:

          (1) delivery to the Paying Agent by the Holder of the Repurchase Election Notice at
any time from the opening of business on the date that is 20 Business Days prior to the applicable
Repurchase Date until the close of business on the Business Day immediately preceding such
Repurchase Date stating:

               (i) if certificated Securities have been issued, the certificate number of the
Security which the Holder will deliver to be purchased (or, if a Holder’s Securities are not
certificated, the Repurchase Election Notice must comply with Applicable Procedures),

               (ii) the portion (which may be 100%) of the principal amount of the Securities which
the Holder will deliver to be repurchased, which portion must be in a principal amount of $1,000 or
an integral multiple thereof, and

               (iii) that such Securities shall be repurchased as of the applicable Repurchase Date
pursuant to the terms and conditions specified in paragraph 7 of the Securities and in this Section
3.11 of this Indenture.

          (2) delivery of such Security to the Paying Agent at any time after delivery of the
Repurchase Notice (together with all necessary endorsements) at the offices of the Paying Agent.
Delivery of such Security shall be a condition to receipt by the Holder of the Repurchase Price
therefor. The Repurchase Price shall be paid pursuant to this Section 3.11 only if the Security
delivered to the
Paying Agent shall conform in all respects to the description thereof in the related
Repurchase Election Notice, as determined by the Company.

     (d) Notwithstanding anything herein to the contrary, any Holder delivering to the
Paying Agent the Repurchase Election Notice contemplated by this Section 3.11 shall have the right
to withdraw

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such Repurchase Election Notice at any time prior to the close of business on the
Business Day immediately preceding the Repurchase Date by delivery of a written notice of
withdrawal to the Paying Agent specifying:

          (1) if certificated Securities have been issued, the certificate number of the
Security in respect of which such notice of withdrawal is being submitted (or, if a Holder’s
Securities are not certificated, the withdrawal notice must comply with the Applicable Procedures),

          (2) the aggregate principal amount of the Security with respect to which such notice
of withdrawal is being submitted, and

          (3) the aggregate principal amount, if any, of such Security which remains subject
to the original Repurchase Election Notice and which has been or will be delivered for purchase by
the Company.

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

     (e) On or before 11:00 a.m. (local time in The City of New York) on the applicable
Repurchase Date, the Company shall deposit with the Trustee or with the Paying Agent (or if the
Company or an Affiliate of the Company is acting as the Paying Agent, shall segregate and hold in
trust as provided in Section 2.4) an amount of money (in immediately available funds if deposited
on such Repurchase Date) sufficient to pay the aggregate Repurchase Price of all the Securities or
portions thereof which are to be purchased as of the applicable Repurchase Date. The manner in
which the deposit required by this Section 3.11(e) is made by the Company shall be at the option of
the Company; provided that such deposit shall be made in a manner such that the Trustee or
a Paying Agent shall have immediately available funds on the applicable Repurchase Date.

     If a Paying Agent holds, in accordance with the terms hereof, money sufficient to pay the
Repurchase Price of any Security for which a Repurchase Election Notice has been tendered and not
withdrawn on the applicable Repurchase Date, then, on the applicable Repurchase Date, such Security
will cease to be outstanding, whether or not the Security is delivered to the Paying Agent, and the
rights of the Holder in respect thereof shall terminate (other than the right to receive the
Repurchase Price as aforesaid) and interest will cease to accrue on such Security.

     The Repurchase Price shall be paid promptly to such Holder with respect to Securities for
which a Repurchase Election Notice has been tendered and not withdrawn, subject to receipt of funds
by the Paying Agent, promptly following the later of (x) the Repurchase Date with respect to such
Security (provided the conditions in Section 3.11(c) have been satisfied) and (y) the time of
delivery of such Security to the Paying Agent by the Holder thereof in the manner required by
Section 3.11(c). Securities in respect of which a Repurchase Election Notice has been given by the
Holder thereof may not be converted pursuant to Article 4 hereof on or after the date of the
delivery of such Repurchase Election Notice, unless the Securities are otherwise then convertible
in accordance with Article 4 and such Repurchase Election Notice has first been validly withdrawn
as specified in Section 3.11(d).

The Company shall purchase from the Holder thereof, pursuant to this Section 3.11, a portion of a
Security if the principal amount of such portion is $1,000 or an integral multiple of $1,000.
Provisions of this Indenture that apply to the purchase of all of a Security also apply to the
purchase of such portion of such Security.

27

 

     (f) There shall be no purchase of any Securities pursuant to this Section 3.11 if
there has occurred (prior to, on or after as the case may be, the giving, by the Holders of such
Securities, of the required Repurchase Election Notice) and is continuing an Event of Default
(other than a default in the payment of the Repurchase Price) and the principal amount of the
Securities has been accelerated in accordance with the Indenture and such acceleration has not been
rescinded. The Paying Agent will promptly return to the respective Holders thereof any Securities
(x) with respect to which a Repurchase Election Notice has been withdrawn in compliance with this
Indenture, or (y) held by it during the continuance of an Event of Default (other than a default in
the payment of the Repurchase Price) in which case, upon such return, the Repurchase Election
Notice with respect thereto shall be deemed to have been withdrawn.

       Section 3.12 Repayment to the Company.

     To the extent that the aggregate amount of cash deposited by the Company pursuant to Section
3.10 or 3.11 exceeds the aggregate Designated Event Purchase Price or the Repurchase Price of the
Securities or portions thereof that the Company is obligated to purchase, then promptly after the
Designated Event Purchase Date or the Repurchase Date, as the case may be, the Trustee or a Paying
Agent, as the case may be, shall return any such excess cash to the Company.

       Section 3.13 Securities Purchased in Part.

     Any Security that is to be purchased or repurchased only in part shall be surrendered at the
office of a Paying Agent, and promptly after the Designated Event Purchase Date or the Repurchase
Date, the Company shall execute and the Trustee shall authenticate and deliver to the Holder of
such Security, without service charge, a new Security or Securities, of such authorized
denomination or denominations as may be requested by such Holder (which must be equal to $1,000
principal amount or any integral thereof), in aggregate principal amount equal to, and in exchange
for, the portion of the principal amount of the Security so surrendered that is not purchased or
repurchased.

       Section 3.14 Compliance with Securities Laws upon Purchase of Securities.

     In connection with any offer to purchase or repurchase or any purchase or repurchase of
Securities under Section 3.08 and 3.11, the Company shall (a) comply with Rule 13e-4 and Rule 14e-1
(or any successor to either such Rule), and any other tender offer rules, if applicable, under the
Exchange Act, (b) file the related 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 to purchase or purchase of Securities, all so as to
permit the rights of the Holders and obligations of the Company under Sections 3.04 through 3.12
and 3.16 to be exercised in the time and in the manner specified therein. To the extent that
compliance with any such laws, rules and regulations would result in a conflict with any of the
terms hereof, this Indenture is hereby modified to the extent required for the Company to comply
with such laws, rules and regulations.

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       Section 3.15 Purchase of Securities in Open Market.

     The Company, in accordance with Section 2.11, may surrender any Security purchased by the
Company pursuant to this Article 3 to the Trustee for cancellation. Any Securities surrendered to
the Trustee for cancellation may not be reissued or resold by the Company and will be canceled
promptly in accordance with Section 2.11. The Company may repurchase Securities in the open
market, by tender at any price or by negotiated transactions and such Securities may be reissued or
resold, to the extent permitted by applicable law, or may be surrendered to the Trustee for
cancellation.

ARTICLE 4

CONVERSION

       Section 4.01 Conversion Privilege and Conversion Rate.

     (a) Subject to the obligation and the right of the Company to pay some or all of the
conversion consideration in cash in accordance with Section 4.13, and upon compliance with the
provisions of this Article 4, at the option of the Holder thereof, any Security or portion thereof
that is an integral multiple of $1,000 principal amount may be converted into fully paid and
nonassessable shares (calculated as to each conversion to the nearest 1/100th of a share) of Common
Stock prior to the close of business on the Business Day immediately preceding the Final Maturity
Date or such earlier date set forth in this Article 4, unless previously purchased by the Company
on a Redemption Date or at the Holder’s option upon the occurrence of a Designated Event or a
Repurchase Date, at the Conversion Rate in effect at such time, determined as hereinafter provided
and subject to the adjustments described below, only under the following circumstances:

     (1) during any calendar quarter beginning after September 30, 2006, and only
during such calendar quarter, if, as of the last day of the immediately preceding calendar
quarter, the Volume Weighted Average Price per share of the Common Stock for at least 20
Trading Days in the period of the 30 consecutive Trading Days ending on the last Trading Day
of such preceding calendar quarter was more than 130% of the Conversion Price on the last
day of such preceding calendar quarter (the “Conversion Trigger Price”);

     (2) during any five Trading Day period after any five consecutive Trading Day
period in which the Trading Price per $1,000 principal amount of Securities, as determined
following a request by a Holder in accordance with the procedures described below in Section
4.01(d)(ii), for each day of that period was less than 98% of the product of the Volume
Weighted Average Price of the Common Stock for each day in that period and the Conversion
Rate per $1,000 principal amount of Securities;

     (3) if the Company distributes to all holders of Common Stock rights or
warrants entitling them to purchase, for a period expiring within 45 days of the date of
issuance, Common Stock at less than the Current Market Price of the Common Stock on the day
of issuance;

     (4) if the Company distributes to all holders of Common Stock, assets, debt
securities or rights to purchase the Company’s securities, which distribution has a per
share value exceeding 7.5% of the Volume Weighted Average Price of the Common Stock on the
Business Day preceding the declaration date for such distribution;

     (5) if a Designated Event (or an event that would have been a Designated
Event but for the existence of the Stock-for-Stock Transaction Exception) occurs or is
anticipated to occur;

29

 

     (6) at any time during the period beginning 60 days prior to, but excluding,
any scheduled Repurchase Date or the Final Maturity Date; or

     (7) for Securities that have been called for redemption, at any time prior to
the close of business on the Business Day prior to the Redemption Date, even if the
Securities are not otherwise convertible at such time.

     Notwithstanding the foregoing, even if the Securities are otherwise convertible as set forth
in Section 4.01(a)(1), 4.01(a)(2), 4.01(a)(3) or 4.01(a)(4), the Securities shall not be
convertible unless the Securities are convertible pursuant to Sections 4.01(a)(5), 4.01(a)(6) or
4.01(a)(7) if, at the time a Holder of Securities tenders its Securities for conversion, there
exists a default or event of default under the Credit Agreement, or a default or event of default
under the Credit Agreement would result from such conversion. The inability of a Holder to convert
its Securities because of this restriction set forth in the immediately preceding sentence will not
constitute a Default or an Event of Default under the Indenture.

     If the Securities would be convertible but are not convertible because of the restrictions set
forth in the immediately preceding paragraph and a Holder tenders its Securities for conversion,
the Company will use reasonable efforts to permit such conversions, which may include, without
limitation, seeking to obtain the consent of the lenders under the Credit Agreement, attempting to
refinance the debt under the Credit Agreement and the issuance and sale of additional equity
securities. If, despite the Company’s reasonable efforts, conversions continue to be prohibited,
the Company will promptly inform such converting Holder and return such Holder’s Securities and any
related notice of conversion will be deemed to be revoked to the extent of such returned
Securities.

     The Company will not make any dividend or distribution of the type referred to in Sections
4.01(a)(3) or 4.01(a)(4) to the extent that a Holder would be unable to convert such Security and
receive such dividend or distribution as a result of the conversion restrictions set forth in this
Section 4.01(a).

     (b) In the case of a distribution contemplated by clauses (3) and (4) of Section
4.01(a), the Company shall notify Holders at least 20 days prior to the ex-dividend date for such
distribution (the “Distribution Notice”). Once the Company has given the Distribution Notice,
Holders may surrender their Securities for conversion at any time until the earlier of the close of
business on the last Trading Day preceding the ex-dividend date or the Company’s announcement that
such distribution will not take place. In the event of a distribution contemplated by clauses (3)
and (4) of Section 4.01(a), Holders may not convert the Securities if the Holders will otherwise
participate in such distribution without converting their Securities. The Company will provide
written notice to the Conversion Agent as soon as reasonably practicable of any anticipated or
actual event or transaction that will cause or causes the Securities to become convertible pursuant
to clauses (3) or (4) of Section 4.01(a).

     (c) In the case of a transaction contemplated by clause (5) of section 4.01(a), the
Company will notify the Holders and Trustee at least 15 Trading Days prior to the anticipated
Designated Event Effective Date of any Designated Event (or an event that would have been a
Designated Event but for the existence of the Stock-for-Stock Transaction Exception) that the
Company knows or reasonably should know will occur. If the Company does not know, and should not
reasonably know, that a Designated Event will occur until a date that is within 15 Trading Days
before the anticipated Designated Event Effective Date or other applicable event, the Company will
notify the Holders and the Trustee promptly after the Company has knowledge of such Designated
Event or such other event. Holders may surrender Securities for conversion at any time beginning
15 Trading Days before the anticipated Designated Event Effective Date of a Designated Event (or an
event that would have been a Designated Event but for the existence of the Stock-for-Stock
Transaction Exception) and until the Trading Day prior to the date of the Designated Event Purchase
Date (or other applicable event).

30

 

     (d) (i) For each calendar quarter of the Company, beginning with the calendar
quarter beginning at any time after September 30, 2006, the Conversion Agent, on behalf of the
Company, will determine, on the first Business Day following the last Trading Day of the previous
calendar quarter, whether the Securities are convertible pursuant to clause (1) of Section 4.01(a),
and, if so, will notify the Trustee and the Company in writing. Upon request of the Conversion
Agent, the Company shall provide, or cause to be provided to, the Conversion Agent the Volume
Weighted Average Price per share of Common Stock for the 30 consecutive Trading Days ending on the
last Trading Day of the preceding calendar quarter.

          (ii) The Trustee shall have no obligation to determine the Trading Price of the
Securities and whether the Securities are convertible pursuant to clause (2) of Section 4.01(a)
unless the Company has requested such determination in writing; and the Company shall have no
obligation to make such request unless a Holder of Securities provides the Company with reasonable
evidence that the Trading Price per $1,000 principal amount of Securities would be less than 98% of
the product of the Volume Weighted Average Price of the Common Stock and the Conversion Rate per
$1,000 principal amount of Securities. At such time, the Company shall instruct the Trustee to
determine the Trading Price of the Securities beginning on the next Trading Day and on each
successive Trading Day until the Trading Price per $1,000 principal amount of the Securities is
greater than 98% of the product of the Volume Weighted Average Price of the Common Stock and the
Conversion Rate per $1,000 principal amount of the Securities.

     (e) The conversion rights pursuant to this Article 4 shall commence on the initial
issuance date of the Securities and expire at the close of business on the Business Day immediately
preceding the Final Maturity Date, but shall be exercisable only during the time periods specified
with respect to each circumstance pursuant to which the Securities become convertible, subject, in
the case of conversion of any Global Security, to any Applicable Procedures. If a security is
submitted or presented for purchase upon a Designated Event pursuant to Article 3, such conversion
right shall terminate at the close of business on the Business Day immediately preceding the
Designated Event Purchase Date for such Security (unless the Company shall fail to make the
Designated Event Purchase Price payment when due in accordance with Article 3, in which case the
conversion right shall terminate at the close of business on the date such failure is cured and
such Security is redeemed or purchased, as the case may be). If a Security is convertible as a
result of a Designated Event, such conversion right shall commence and terminate as set forth in
Section 4.01(c). Securities in respect of which a Designated Event Purchase Notice has been
delivered may not be surrendered for conversion pursuant to this Article 4 prior to a valid
withdrawal of such Designated Event Notice in accordance with the provisions of Article 3.

     (f) Provisions of this Indenture that apply to conversion of all of a Security also
apply to conversion of a portion of a Security.

     (g) A Holder of Securities is not entitled to any rights of a holder of Common Stock
until such Holder has converted its Securities into Common Stock, and only to the extent such
Securities are deemed to have been converted into Common Stock pursuant to this Article 4.

     (h) The Conversion Rate shall be adjusted in certain instances as provided in
Sections 4.01(i) and Section 4.06.

     (i) If there shall have occurred a Designated Event at any time prior to July 1,
2013, then the Conversion Rate per $1,000 principal amount of Securities otherwise in effect in
respect of Securities for which a conversion notice is received by the Conversion Agent during the
period beginning 15 Trading Days before the date announced by the Company as the anticipated
Designated Event Effective Date and
ending at the close of business on the Trading Day immediately preceding the Designated Event
Purchase

31

 

Date shall be increased by the amount, if any, determined by reference to the table below,
based on the Designated Event Effective Date and the Stock Price of such Designated Event;
provided that if the Stock Price or Designated Event Effective Date are not set forth on
the table: (i) if the actual Stock Price on the Designated Event Effective Date is between two
Stock Prices on the table or the actual Designated Event Effective Date is between two Designated
Event Effective Dates on the table, the amount of the Conversion Rate adjustment will be determined
by a straight-line interpolation between the adjustment amounts set forth for the two Stock Prices
and the two Designated Event Effective Dates on the table based on a 365-day year, as applicable,
(ii) if the Stock Price on the Designated Event Effective Date exceeds $70.00 per share, subject to
adjustment as set forth herein, no adjustment to the applicable Conversion Rate will be made, and
(iii) if the Stock Price on the Designated Event Effective Date is less than $15.22 per share,
subject to adjustment as set forth herein, no adjustment to the applicable Conversion Rate will be
made. If holders of the Common Stock receive only cash in the Designated Event, the Stock Price
shall be the cash amount paid per share of the Common Stock in connection with the Designated
Event. Otherwise, the Stock Price shall be equal to the Volume Weighted Average Price of the
Common Stock for each of the 10 Trading Days immediately preceding, but not including, the
applicable Designated Event Effective Date.

     The following table shows the amount, if any, by which the applicable Conversion Rate will
increase for each Stock Price and Designated Event Effective Date set forth below:

Make Whole Premium Upon a Designated Event (Increase in Applicable Conversion Rate)

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Stock Price on	 	June 27,	 	July 1,	 	July 1,	 	July 1,	 	July 1,	 	July 1,	 	July 1,	 	July 1,	 	July 1,
	Effective Date	 	2006	 	2006	 	2007	 	2008	 	2009	 	2010	 	2011	 	2012	 	2013
	$15.22
	 	 	14.17	 	 	 	14.17	 	 	 	14.17	 	 	 	14.17	 	 	 	14.17	 	 	 	14.17	 	 	 	14.17	 	 	 	14.17	 	 	 	14.17	 
	$20.00
	 	 	10.18	 	 	 	10.18	 	 	 	9.40	 	 	 	8.34	 	 	 	7.05	 	 	 	5.18	 	 	 	0.77	 	 	 	0.77	 	 	 	0.77	 
	$25.00
	 	 	6.76	 	 	 	6.76	 	 	 	6.06	 	 	 	5.24	 	 	 	4.07	 	 	 	2.49	 	 	 	0.40	 	 	 	0.40	 	 	 	0.00	 
	$30.00
	 	 	4.95	 	 	 	4.95	 	 	 	4.29	 	 	 	3.70	 	 	 	2.74	 	 	 	1.42	 	 	 	0.33	 	 	 	0.33	 	 	 	0.00	 
	$35.00
	 	 	3.65	 	 	 	3.65	 	 	 	3.14	 	 	 	2.71	 	 	 	1.93	 	 	 	1.05	 	 	 	0.29	 	 	 	0.29	 	 	 	0.00	 
	$40.00
	 	 	2.84	 	 	 	2.84	 	 	 	2.45	 	 	 	2.14	 	 	 	1.50	 	 	 	0.83	 	 	 	0.25	 	 	 	0.25	 	 	 	0.00	 
	$45.00
	 	 	2.28	 	 	 	2.28	 	 	 	1.96	 	 	 	1.73	 	 	 	1.21	 	 	 	0.68	 	 	 	0.22	 	 	 	0.22	 	 	 	0.00	 
	$50.00
	 	 	1.85	 	 	 	1.85	 	 	 	1.59	 	 	 	1.43	 	 	 	1.00	 	 	 	0.58	 	 	 	0.20	 	 	 	0.20	 	 	 	0.00	 
	$55.00
	 	 	1.53	 	 	 	1.53	 	 	 	1.31	 	 	 	1.20	 	 	 	0.84	 	 	 	0.50	 	 	 	0.18	 	 	 	0.18	 	 	 	0.00	 
	$60.00
	 	 	1.30	 	 	 	1.30	 	 	 	1.11	 	 	 	1.02	 	 	 	0.72	 	 	 	0.43	 	 	 	0.17	 	 	 	0.17	 	 	 	0.00	 
	$65.00
	 	 	1.09	 	 	 	1.09	 	 	 	0.94	 	 	 	0.88	 	 	 	0.62	 	 	 	0.38	 	 	 	0.15	 	 	 	0.15	 	 	 	0.00	 
	$70.00
	 	 	0.92	 	 	 	0.92	 	 	 	0.79	 	 	 	0.76	 	 	 	0.54	 	 	 	0.34	 	 	 	0.14	 	 	 	0.14	 	 	 	0.00	 

     The Stock Prices set forth in the first column of the table above will be adjusted as of any
date on which the Conversion Rate of the Securities is adjusted. The adjusted Stock Prices will
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
Conversion Rate adjustment amounts set forth in the table above will be adjusted in the same manner
as the Conversion Rate as set forth in Section 4.06 hereof, other than as a result of an adjustment
of the Conversion Rate by virtue of the provisions of this Section 4.01(i).

     (j) Except as set forth in Section 4.02(c), by delivering the amount of cash and, if
applicable, the number of shares of Common Stock issuable on conversion to the Trustee, the Company
will be deemed to have satisfied its obligation to pay the principal amount of the Securities so
converted and its
obligation to pay accrued and unpaid interest, and Contingent Interest if any, attributable to
the period

32

 

from the most recent Interest Payment Date through the Conversion Date (which amount
will be deemed paid in full rather than cancelled, extinguished or forfeited).

     (k) If a Holder has delivered a Repurchase Notice or a Designated Event Purchase
Notice with respect to a Security at the time any Securities are called for redemption, the Holder
may not surrender such Security for conversion until the Holder has withdrawn such notice in
accordance herewith.

     (l) Notwithstanding anything else contained herein, the Securities shall not become
subject to conversion by reason of a merger, consolidation, or other transaction effected with one
of the Company’s direct or indirect Subsidiaries for the purpose of changing the Company’s state of
incorporation to any other state within the United States or the District of Columbia.

       Section 4.02 Conversion Procedure.

     (a) To convert a Security, a Holder must (1) complete and manually sign the
conversion notice on the back of the Security and deliver such notice to a Conversion Agent, (2)
surrender the Security to a Conversion Agent, (3) furnish appropriate endorsements and transfer
documents if required by a Registrar or a Conversion Agent, and (4) pay all transfer or similar
taxes, if required pursuant to Section 4.04. The date on which the Holder satisfies all of those
requirements is the “Conversion Date.” Subject to Section 4.01, upon the conversion of a Security,
the Company will pay the cash and deliver the shares of Common Stock, as applicable, as promptly as
practicable after the later of the Conversion Date and the date that all calculations necessary to
make such payment and delivery have been made, but in no event later than five Trading Days after
the later of such dates. Anything herein to the contrary notwithstanding, in the case of Global
Securities, conversion notices may be delivered and such Securities may be surrendered for
conversion in accordance with the Applicable Procedures as in effect from time to time.

     (b) The person in whose name the shares of Common Stock, if any, are issuable upon
conversion shall be deemed to be a holder of record of such Common Stock on the Conversion Date;
provided, however, that no surrender of a Security on any Conversion Date when the
stock transfer books of the Company shall be closed shall be effective to constitute the person or
persons entitled to receive the shares of Common Stock upon conversion as the record holder or
holders of such shares of Common Stock on such date, but such surrender shall be effective to
constitute the person or persons entitled to receive such shares of Common Stock as the record
holder or holders thereof for all purposes at the close of business on the next succeeding day on
which such stock transfer books are open; provided further that such conversion
shall be at the Conversion Rate in effect on the Conversion Date as if the stock transfer books of
the Company had not been closed. Upon conversion of a Security, such person shall no longer be a
Holder of such Security. Except as set forth in this Indenture, no payment or adjustment will be
made for dividends or distributions declared or made on shares of Common Stock, if any, issued upon
conversion of a Security prior to the issuance of such shares.

     (c) Holders of Securities surrendered for conversion (in whole or in part) during
the period from the close of business on any Regular Record Date to the opening of business on the
next succeeding Interest Payment Date will receive the semi-annual interest payable on such
Securities on the corresponding Interest Payment Date notwithstanding the conversion. Upon
surrender of any such Securities for conversion, unless such Securities have been surrendered for
conversion following the regular record date immediately preceding the final interest payment date
(July 1, 2036) or if the Securities have been called for redemption pursuant to Section 3.01 of
this Indenture, such Securities shall also be accompanied by payment in funds acceptable to the
Company of an amount equal to the

33

 

interest payable on such corresponding Interest Payment Date. Except as otherwise provided in
this Section 4.02(c), no payment or adjustment will be made for accrued interest on a converted
Security.

     (d) Subject to Section 4.02(c), nothing in this Section shall affect the right of a
Holder in whose name any Security is registered at the close of business on a Regular Record Date
to receive the interest payable on such Security on the related Interest Payment Date in accordance
with the terms of this Indenture and the Securities. If a Holder converts more than one Security
at the same time, the amount of cash to be paid and the number of shares of Common Stock issuable
upon the conversion, if any (and the amount of any cash in lieu of fractional shares pursuant to
Section 4.03), shall be based on the aggregate principal amount of all Securities so converted.

     (e) In the case of any Security which is converted in part only, upon such
conversion the Company shall execute and the Trustee shall authenticate and deliver to the Holder
thereof, without service charge, a new Security or Securities of authorized denominations in an
aggregate principal amount equal to, and in exchange for, the unconverted portion of the principal
amount of such Security. A Security may be converted in part, but only if the principal amount of
such part is an integral multiple of $1,000 and the principal amount of such Security to remain
outstanding after such conversion is equal to $1,000 or any integral multiple of $1,000 in excess
thereof.

     (f) Upon the Company’s determination that a Holder is or will be entitled to convert
its Securities into cash and, if applicable, shares of Common Stock pursuant to this Article 4, the
Company will promptly after making such determination issue a press release and use its reasonable
efforts to post such information on the Company’s website or otherwise publicly disclose such
information.

       Section 4.03 Fractional Shares.

     The Company will not issue fractional shares of Common Stock upon conversion of Securities.
If more than one Security shall be surrendered for conversion at one time by the same Holder, the
number of full shares that shall be issuable upon conversion, if any, shall be computed on the
basis of the aggregate principal amount of the Securities (or specified portions thereof to the
extent permitted hereby) so surrendered. In lieu of any fractional shares, the Company will pay an
amount in cash for the current market value of the fractional shares. The current market value of
a fractional share shall be determined (calculated to the nearest 1/100th of a share) by
multiplying the arithmetic average of the Volume Weighted Average Price of the Common Stock for
each of the twenty consecutive Trading Days of the Conversion Reference Period by such fractional
share and rounding the product to the nearest whole cent.

       Section 4.04 Taxes on Conversion.

     If a Holder converts a Security, the Company shall pay any transfer, stamp or similar taxes or
duties related to the issue or delivery of shares of Common Stock upon such conversion. The
Company shall also pay any such tax with respect to cash received in lieu of fractional shares.
The Holder shall pay any such tax which is due because the Holder requests the shares to be issued
in a name other than the Holder’s name. The Conversion Agent may refuse to deliver the certificate
representing the Common Stock being issued in a name other than the Holder’s name until the
Conversion Agent receives a sum sufficient to pay any tax which will be due because the shares are
to be issued in a name other than the Holder’s name. Nothing herein shall preclude any tax
withholding required by law or regulation.

       Section 4.05 Company to Provide Stock.

     (a) 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

34

 

shares of Common Stock to permit the conversion of all outstanding Securities into shares of
Common Stock.

     (b) 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 or similar rights and free of any lien or adverse claim as the result
of any action by the Company.

     (c) The Company will 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.

       Section 4.06 Adjustment of Conversion Rate.

     (a) The Conversion Rate shall be adjusted from time to time by the Company as
follows:

     (1) If the Company shall pay a dividend or make a distribution to all holders
of outstanding Common Stock in shares of Common Stock, the Conversion Rate in effect
immediately prior to the record date for the determination of stockholders entitled to
receive such dividend or other distribution shall be increased so that the same shall equal
the rate determined by multiplying the Conversion Rate in effect immediately prior to such
record date by a fraction of which the numerator shall be the sum of the number of shares of
Common Stock outstanding at the close of business on such record date plus the total number
of shares of Common Stock constituting such dividend or other distribution and of which the
denominator shall be the number of shares of Common Stock outstanding at the close of
business on such record date. Such adjustment shall be made successively whenever any such
dividend or distribution is made and shall become effective immediately after such record
date. For the purpose of this clause (1), the number of shares of Common Stock at any time
outstanding shall not include shares held in the treasury of the Company. The Company will
not pay any dividend or make any distribution on Common Stock held in the treasury of the
Company. If any dividend or distribution of the type described in this clause is declared
but not so paid or made, the Conversion Rate shall again be adjusted to the Conversion Rate
that would then be in effect if such dividend or distribution had not been declared.

     (2) If the Company shall subdivide its outstanding Common Stock into a
greater number of shares, or combine its outstanding Common Stock into a smaller number of
shares, the Conversion Rate in effect immediately prior to the day upon which such
subdivision or combination becomes effective shall be, in the case of a subdivision of
Common Stock, proportionately increased and, in the case of a combination of Common Stock,
proportionately reduced. Such adjustment shall be made successively whenever any such
subdivision or combination of the Common Stock occurs and shall become effective immediately
after the date upon which such subdivision or combination becomes effective.

     (3) If the Company shall issue rights or warrants to all holders of its
outstanding Common Stock entitling them (for a period expiring within 45 days after such
issuance) to subscribe for or purchase shares of Common Stock (or securities convertible
into Common Stock) at a price per share (or having a conversion price per share) less than
the Current Market Price per share of Common Stock (as determined in accordance with clause
(9) of this Section 4.06(a)) on the record date for the determination of stockholders
entitled to receive such rights or warrants, the Conversion Rate in effect immediately prior
thereto shall be adjusted so that the same shall equal the rate determined by multiplying
the Conversion Rate in effect immediately prior to such record date by a fraction of which
the numerator shall be the number of shares of Common Stock

35

 

outstanding at the close of business on such record date plus the number of additional
shares of Common Stock that such rights or warrants entitle holders thereof to subscribe for
or purchase (or into which such convertible securities are convertible) and of which the
denominator shall be the number of shares of Common Stock outstanding at the close of
business on such record date plus the number of shares which the aggregate offering price of
the total number of shares of Common Stock so offered for subscription or purchase (or the
aggregate conversion price of the convertible securities so offered for subscription or
purchase, which shall be determined by multiplying the number of shares of Common Stock
issuable upon conversion of such convertible securities by the conversion price per share of
Common Stock pursuant to the terms of such convertible securities) would purchase at the
Current Market Price per share of Common Stock on such record date. Such adjustment shall
be made successively whenever any such rights or warrants (or convertible securities) are
issued, and shall become effective immediately after such record date. To the extent that
shares of Common Stock (or securities convertible into Common Stock) are not delivered after
the expiration of such rights or warrants, the Conversion Rate shall be readjusted to the
Conversion Rate that would then be in effect had the adjustments made upon the issuance of
such rights or warrants been made on the basis of delivery of only the number of shares of
Common Stock (or securities convertible into Common Stock) actually delivered. If such
rights or warrants are not so issued, the Conversion Rate shall again be adjusted to be the
Conversion Rate that would then be in effect if the record date for the determination of
stockholders entitled to receive such rights or warrants had not been fixed. In determining
whether any rights or warrants entitle the stockholders to subscribe for or purchase shares
of Common Stock at a price less than the Current Market Price per share of Common Stock and
in determining the aggregate offering price of the total number of shares of Common Stock so
offered, there shall be taken into account any consideration received by the Company for
such rights 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.

     (4) If the Company shall make a dividend or other distribution to all holders
of its Common Stock of Capital Stock, other than Common Stock, or evidences of indebtedness
or other assets or property of the Company (excluding (x) any issuance of rights or warrants
for which an adjustment was made pursuant to Section 4.06(a)(3), (y) dividends or
distributions in connection with a reclassification, change, consolidation, merger,
combination, liquidation, dissolution, winding up, sale or conveyance resulting in a change
in the conversion consideration, or pursuant to any stockholder rights plan or (z) any
dividend or distribution paid exclusively in cash for which an adjustment was made pursuant
to Section 4.06(a)(6)) (the “Distributed Securities”), then in each such case (unless the
Company distributes such Distributed Securities for distribution to the Holders of
Securities on such dividend or distribution date as if each Holder had converted such
Security into Common Stock immediately prior to the record date with respect to such
distribution) the Conversion Rate in effect immediately prior to the record date fixed for
the determination of stockholders entitled to receive such dividend or distribution shall be
adjusted so that the same shall equal the rate determined by multiplying the Conversion Rate
in effect immediately prior to such record date by a fraction of which the numerator shall
be the Current Market Price per share of the Common Stock on such record date and of which
the denominator shall be Current Market Price per share on such record date less the fair
market value (as determined in good faith by the Board of Directors, whose determination
shall be conclusive evidence of such fair market value and which shall be evidenced by an
Officers’ Certificate delivered to the Trustee) on such record date of the portion of the
Distributed Securities so distributed applicable to one share of Common Stock (determined on
the basis of the number of shares of Common Stock outstanding at the close of business on
such record date). Such adjustment shall be made successively whenever any such
distribution is made and shall become effective immediately after the record date for the
determination of stockholders entitled

36

 

to receive such distribution. In the event that such dividend or distribution is not
so paid or made, the Conversion Rate shall again be adjusted to be the Conversion Rate that
would then be in effect if such dividend or distribution had not been declared.

If the fair market value (as so determined) of the portion of the Distributed Securities so
distributed applicable to one share of Common Stock is equal to or greater than the Current
Market Price per share of the Common Stock on such record date, in lieu of the foregoing
adjustment, adequate provision shall be made so that each holder of a Security shall have
the right to receive upon conversion the amount of Distributed Securities so distributed
that such Holder would have received had such Holder converted each Security on such record
date. If the Board of Directors determines the fair market value of any distribution for
purposes of this Section 4.06(a)(4) by reference to the actual or when issued trading market
for any securities, it must in doing so consider the prices in such market over the same
period used in computing the Current Market Price of the Common Stock.

Notwithstanding the foregoing, if the securities distributed by the Company to all holders
of its Common Stock consist of Capital Stock of, or similar equity interests in, a
Subsidiary or other business unit of the Company (the “Spinoff Securities”), the Conversion
Rate shall be adjusted, unless the Company makes an equivalent distribution to the Holders
of the Securities, so that the same shall be equal to the rate determined by multiplying the
Conversion Rate in effect on the record date fixed for the determination of stockholders
entitled to receive such distribution by a fraction, the numerator of which shall be the sum
of (A) the average Volume Weighted Average Price of one share of Common Stock over the ten
consecutive Trading Day period (the “Spinoff Valuation Period”) commencing on and including
the fifth Trading Day after the date on which ex-dividend trading commences for such
distribution on The Nasdaq Stock Market or such other United States national or regional
exchange or market on which the Common Stock is then listed or quoted and (B) the average of
the Volume Weighted Average Price over the Spinoff Valuation Period of the Spinoff
Securities multiplied by the number of Spinoff Securities distributed in respect of one
share of Common Stock and the denominator of which shall be the average Volume Weighted
Average Price of one share of Common Stock over the Spinoff Valuation Period, such
adjustment to become effective immediately prior to the opening of business on the fifteenth
Trading Day after the date on which ex-dividend trading commences; provided,
however, that the Company may in lieu of the foregoing adjustment elect to make
adequate provision so that each Holder of Securities shall have the right to receive upon
conversion thereof the amount of such Spinoff Securities that such Holder of Securities
would have received if such Securities had been converted on the record date with respect to
such distribution so long as (i) there is no adverse tax consequence to a Holder receiving
such Spinoff Securities in lieu of an adjustment to the Conversion Rate and (ii) upon
receipt of such Spinoff Securities by the Holder, such Spinoff Securities may be transferred
by the Holder without restriction under the Securities Act.

     (5) With respect to any rights or warrants (the “Rights”) that may be issued
or distributed pursuant to any rights plan that the Company implements after the date of
this Indenture (a “Rights Plan”), in lieu of any adjustment required by any other provision
of this Section 4.06 upon conversion of the Securities into Common Stock, to the extent that
such Rights Plan is in effect upon such conversion, the Holders of Securities will receive,
with respect to the shares of Common Stock issued upon conversion, the Rights described
therein (whether or not the Rights have separated from the Common Stock at the time of
conversion), subject to the limitations set forth in and in accordance with any such Rights
Plan; provided that in the case of a future Rights Plan to the extent applicable,
if, at the time of conversion, however, the Rights have separated from the shares of Common
Stock in accordance with the provisions of the Rights Plan

37

 

so that Holders would not be entitled to receive any rights in respect of the shares of
Common Stock issuable upon conversion of the Securities as a result of the timing of the
Conversion Date, the Conversion Rate will be adjusted as if the Company distributed to all
holders of Common Stock Distributed Securities constituting such rights as provided in the
first paragraph of clause (4) of this Section 4.06(a), subject to appropriate readjustment
in the event of the expiration, termination, repurchase or redemption of the Rights. Any
distribution of rights or warrants pursuant to a Rights Plan complying with the requirements
set forth in the immediately preceding sentence of this paragraph shall not constitute a
distribution of rights or warrants pursuant to this Section 4.06(a). Other than as
specified in this clause (5) of this Section 4.06(a), there will not be any adjustment to
the Conversion Rate as the result of the issuance of any Rights, the distribution of
separate certificates representing such Rights, the exercise or redemption of such Rights in
accordance with any Rights Plan or the termination or invalidation of any Rights.

     (6) If the Company shall, by dividend or otherwise, at any time distribute (a
“Triggering Distribution”) to all holders of its Common Stock a payment consisting
exclusively of cash (excluding any dividend or distribution in connection with the
liquidation, dissolution or winding up of the Company, whether voluntary or involuntary) the
Conversion Rate shall be increased so that the same shall equal the rate determined by
multiplying such Conversion Rate in effect immediately prior to the close of business on the
record date for such Triggering Distribution (a “Determination Date”) by a fraction of which
the numerator shall be such Current Market Price per share of the Common Stock on the
Determination Date and the denominator of which shall be the Current Market Price per share
of the Common Stock on the Determination Date less the amount of such cash dividend or
distribution applicable to one share of Common Stock (determined on the basis of the number
of shares of Common Stock outstanding at the close of business on the Determination Date),
such increase to become effective immediately prior to the opening of business on the day
following the date on which the Triggering Distribution is paid. If the amount of cash
dividend or distribution applicable to one share of Common Stock is equal to or greater than
the Current Market Price per share of the Common Stock on the Determination Date, in lieu of
the foregoing adjustment, adequate provision shall be made so that each Holder of a Security
shall have the right to receive upon conversion the amount of cash so distributed that such
Holder would have received had such Holder converted each Security on such Determination
Date. In the event that such dividend or distribution is not so paid or made, the
Conversion Rate shall again be adjusted to be the Conversion Rate that would then be in
effect if such divided or distribution had not been declared.

     (7) If any tender offer made by the Company or any of its Subsidiaries for
all or any portion of Common Stock shall expire, then, if the tender offer shall require the
payment to stockholders of consideration per share of Common Stock having a fair market
value (determined as provided below) that exceeds the Volume Weighted Average Price per
share of Common Stock on the Trading Day next succeeding the last date (the “Expiration
Date”) tenders could have been made pursuant to such tender offer (as it may be amended)
(the last time at which such tenders could have been made on the Expiration Date is
hereinafter sometimes called the “Expiration Time”), the Conversion Rate shall be increased
so that the same shall equal the rate determined by multiplying the Conversion Rate in
effect immediately prior to the close of business on the Expiration Date by a fraction of
which the numerator shall be the sum of (A) the fair market value of the aggregate
consideration (the fair market value as determined in good faith by the Board of Directors,
whose determination shall be conclusive evidence of such fair market value and which shall
be evidenced by an Officers’ Certificate delivered to the Trustee) payable to stockholders
based on the acceptance (up to any maximum specified in the terms of the tender offer) of
all shares validly tendered and not withdrawn as of the Expiration Time (the shares deemed
so accepted, up to any such maximum, being referred to as the “Purchased Shares”) and

38

 

(B) the product of the number of shares of Common Stock outstanding (less any Purchased
Shares and excluding any shares held in the treasury of the Company) at the Expiration Time
and the Volume Weighted Average Price per share of Common Stock on the Trading Day next
succeeding the Expiration Date and the denominator of which shall be the product of the
number of shares of Common Stock outstanding (including Purchased Shares but excluding any
shares held in the treasury of the Company) at the Expiration Time multiplied by the Volume
Weighted Average Price per share of the Common Stock on the Trading Day next succeeding the
Expiration Date, such increase to become effective immediately prior to the opening of
business on the day following the Expiration Date. In the event that the Company is
obligated to purchase shares pursuant to any such tender offer, but the Company is
permanently prevented by applicable law from effecting any or all such purchases or any or
all such purchases are rescinded, the Conversion Rate shall again be adjusted to be the
Conversion Rate which would have been in effect based upon the number of shares actually
purchased, if any. If the application of this clause (7) of Section 4.06(a) to any tender
offer would result in a decrease in the Conversion Rate, no adjustment shall be made for
such tender offer under this clause (7).

     (8) For purposes of this Section 4.06, the term “tender offer” shall mean and
include both tender offers and exchange offers, all references to “purchases” of shares in
tender offers (and all similar references) shall mean and include both the purchase of
shares in tender offers and the acquisition of shares pursuant to exchange offers, and all
references to “tendered shares” (and all similar references) shall mean and include shares
tendered in both tender offers and exchange offers.

     (9) For purposes of any computation under this Section 4.06, “Current Market
Price” shall mean the average of the Volume Weighted Average Price per share of Common Stock
for each of the ten consecutive Trading Days ending on the earlier of the day in question
and the day before the ex-trading date with respect to the issuance or distribution
requiring such computation; provided, however, that if

     (A) the “ex” date (as hereinafter defined) for any event (other than
the issuance or distribution requiring such computation) that requires an adjustment
to the Conversion Rate pursuant to Section 4.06(a) (1), (2), (3), (4), (5), (6) or
(7) occurs during such ten consecutive Trading Days, the Volume Weighted Average
Price for each Trading Day prior to the “ex” date for such other event shall be
adjusted by dividing such Volume Weighted Average Price by the same fraction by
which the Conversion Rate is so required to be adjusted as a result of such other
event;

     (B) the “ex” date for any event (other than the issuance or
distribution requiring such computation) that requires an adjustment to the
Conversion Rate pursuant to Section 4.06(a) (1), (2), (3), (4), (5), (6) or (7)
occurs on or after the “ex” date for the issuance or distribution requiring such
computation and prior to the day in question, the Volume Weighted Average Price for
each Trading Day on and after the “ex” date for such other event shall be adjusted
by dividing such Volume Weighted Average Price by the reciprocal of the fraction by
which the Conversion Rate is so required to be adjusted as a result of such other
event; and

     (C) the “ex” date for the issuance or distribution requiring such
computation is prior to the day in question, after taking into account any
adjustment required pursuant to the immediately preceding clause (A) or (B) of this
Section 4.06(a)(9), the Volume Weighted Average Price for each Trading Day on or
after such “ex” date shall be adjusted by adding thereto the amount of any cash and
the fair market value (as

39

 

determined in good faith by the Board of Directors in a manner consistent with
any determination of such value for purposes of Section 4.06(a)(4) or (7), whose
determination shall be conclusive and set forth in a Board Resolution) of the
evidences of indebtedness, shares of capital stock or assets being distributed
applicable to one share of Common Stock as of the close of business on the day
before such “ex” date.

For purposes of any computation under Section 4.06(a)(7), if the “ex” date for any event
(other than the tender offer that is the subject of the adjustment pursuant to Section
4.06(a)(7)) that requires an adjustment to the Conversion Rate pursuant to Section
4.06(a)(1), (2), (3), (4), (5) or (6) occurs on the date of the Expiration Time for the
tender or exchange offer requiring such computation or on the Trading Day next following the
Expiration Time, the Volume Weighted Average Price for each Trading Day on and after the
“ex” date for such other event shall be adjusted by dividing such Volume Weighted Average
Price by the reciprocal of the fraction by which the Conversion Rate is so required to be
adjusted as a result of such other event. For purposes of this Section 4.06(a)(9) the term
“ex” date, when used:

     (A) with respect to any issuance or distribution, means the first
date on which the Common Stock trades regular way on the relevant exchange or in the
relevant market from which the Volume Weighted Average Price was obtained without
the right to receive such issuance or distribution;

     (B) with respect to any subdivision or combination of shares of
Common Stock, means the first date on which the Common Stock trades regular way on
such exchange or in such market after the time at which such subdivision or
combination becomes effective, and

     (C) with respect to any tender or exchange offer, means the first
date on which the Common Stock trades regular way on such exchange or in such market
after the Expiration Time of such offer.

Notwithstanding the foregoing, whenever successive adjustments to the Conversion Rate are
called for pursuant to this Section 4.06, such adjustments shall be made to the Current
Market Price as may be necessary or appropriate to effectuate the intent of this Section
4.06 and to avoid unjust or inequitable results as determined in good faith by the Board of
Directors.

     (b) In any case in which this Section 4.06 shall require that an adjustment be made
following a record date, a Determination Date or Expiration Date, as the case may be, established
for the purposes specified in this Section 4.06, the Company may elect to defer (but only until
five Business Days following the filing by the Company with the Trustee of the certificate
described in Section 4.08) issuing to the Holder of any Security converted after such record date,
Determination Date or Expiration Date the shares of Common Stock and other Capital Stock of the
Company issuable upon such conversion over and above the shares of Common Stock and other Capital
Stock of the Company (or other cash, property or securities, as applicable) issuable upon such
conversion only on the basis of the Conversion Rate prior to adjustment; and, in lieu of any cash,
property or securities the issuance of which is so deferred, the Company shall issue or cause its
transfer agents to issue due bills or other appropriate evidence prepared by the Company of the
right to receive such cash, property or securities. If any distribution in respect of which an
adjustment to the Conversion Rate is required to be made as of the record date, Determination Date
or Expiration Date therefore is not thereafter made or paid by the Company for any reason, the
Conversion Rate shall be readjusted to the Conversion Rate which would then be in effect if such
record date had not been fixed or such record date, Determination Date or Expiration Date had not
occurred.

40

 

     (c) For purposes of this Section 4.06, “record date” shall mean, with respect to any
dividend, distribution or other transaction or event in which the holders of Common Stock have the
right to receive any cash, securities or other property or in which the Common Stock (or other
applicable security) is exchanged or converted into any combination of cash, securities or other
property, the date fixed for determination of stockholders entitled to receive such cash, security
or other property (whether or not such date is fixed by the Board of Directors or by statute,
contract or otherwise).

     (d) If one or more event occurs requiring an adjustment be made to the Conversion
Rate for a particular period, adjustments to the Conversion Rate shall be determined by the
Company’s Board of Directors to reflect the combined impact of such Conversion Rate adjustment
events, as set out in this Section 4.06, during such period.

       Section 4.07 No Adjustment. (a) No adjustment in the Conversion Rate shall
be required if Holders may participate in the transactions set forth in Section 4.06 above (to the
same extent as if the Securities had been converted immediately prior to such transactions) without
converting the Securities held by such Holders.

     (a) No adjustment in the Conversion Rate shall be required for issuances of Common
Stock pursuant to a Company plan for reinvestment of dividends or interest or for a change in the
par value or a change to no par value of the Common Stock.

     (b) To the extent that the Securities become convertible into the right to receive
cash, no adjustment need be made thereafter as to the cash.

       Section 4.08 Notice of Adjustment.

     Whenever the Conversion Rate or conversion privilege is required to be adjusted pursuant to
this Indenture, the Company shall promptly mail to Holders a notice of the adjustment and file with
the Trustee an Officers’ Certificate briefly stating the facts requiring the adjustment and the
manner of computing it. Failure to mail such notice or any defect therein shall not affect the
validity of any such adjustment. Unless and until the Trustee shall receive an Officers’
Certificate setting forth 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.

       Section 4.09 Notice of Certain Transactions.

     In the event that there is a dissolution or liquidation of the Company, the Company shall mail
to Holders and file with the Trustee a notice stating the proposed effective date. The Company
shall mail such notice at least 10 days before such proposed effective date. Failure to mail such
notice or any defect therein shall not affect the validity of any transaction referred to in this
Section 4.09.

	 	 	  Section 4.10 Effect of Recapitalization, Reclassification, Consolidation, Merger or
Sale.

     If any of following events occur (each, a “Business Combination”):

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

     (2) a consolidation, merger or combination involving the Company,

41

 

     (3) a sale, conveyance or lease to another corporation of all or
substantially all of the property and assets of the Company, other than one or more of the
Company’s subsidiaries, or

     (4) any statutory share exchange,

in each case as a result of which holders of Common Stock are entitled to receive stock, other
securities, other property or assets (including cash or any combination thereof) with respect to or
in exchange for Common Stock, the Company or the successor or purchasing corporation, as the case
may be, shall execute with the Trustee a supplemental indenture (which shall comply with the TIA as
in force at the date of execution of such supplemental indenture if such supplemental indenture is
then required to so comply) providing that the Holders of the Securities then outstanding will be
entitled thereafter to convert such Securities into the kind and amount of shares of stock, other
securities or other property or assets (including cash or any combination thereof) which they would
have owned or been entitled to receive upon such Business Combination had such Securities been
converted into Common Stock (assuming for such purpose such conversion were settled entirely in the
Company’s Common Stock and without giving effect to any adjustment to the conversion rate with
respect to a Business Combination constituting a Designated Event) immediately prior to such
Business Combination, except that such Holders will not receive the Make Whole Premium if such
Holder does not convert its Securities “in connection with” the relevant Designated Event. A
conversion of the Securities by a Holder will be deemed for these purposes to be “in connection
with” a Designated Event if the notice of such conversion is provided in compliance with Section
4.02(a) to the Conversion Agent on or subsequent to the date 15 Trading Days prior to the date
announced by the Company as the anticipated Designated Event Effective Date but before the close of
business on the Business Day immediately preceding the related Designated Event Purchase Date. In
the event holders of Common Stock have the opportunity to elect the form of consideration to be
received in such Business Combination, the Company shall make adequate provision whereby the
Securities shall be convertible from and after the effective date of such Business Combination into
the form of consideration elected by a majority of the Company’s stockholders in such Business
Combination. Appropriate provisions will be made, as determined in good faith by the Company’s
Board of Directors, to preserve the settlement provisions in Section 4.13 following such Business
Combination to the extent feasible. The Company may not become a party to any such transaction
unless its terms are consistent with this Section 4.10. Such supplemental indenture shall provide
for adjustments which shall be as nearly equivalent as may be practicable to the adjustments
provided for in this Article 4. If, in the case of any such Business Combination, the stock or
other securities and assets receivable thereupon by a holder of shares of Common Stock includes
shares of stock or other securities and assets of a corporation other than the successor or
purchasing corporation, as the case may be, in such Business Combination, then such supplemental
indenture shall also be executed by such other corporation 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 practicable
the provisions providing for the repurchase rights set forth in Article 3 hereof. Notwithstanding
anything contained in this Section, and for the avoidance of doubt, this Section shall not affect
the right of a Holder to convert its Securities into cash and, if applicable, shares of Common
Stock prior to the effective date of the Business Combination.

       Section 4.11 Trustee’s Disclaimer.

     (a) The Trustee shall have no duty to determine when an adjustment under this
Article 4 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, an Officers’ Certificate, including the Officers’ Certificate with
respect thereto which the Company is obligated to file with the Trustee pursuant to Section 4.08.
The Trustee makes no representation as to the

42

 

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 4.

     (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 4.10, 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 14.04.

       Section 4.12 Voluntary Increase.

     The Company from time to time may increase the Conversion Rate, to the extent permitted by
law, by any amount for any period of time if the period is at least 20 days, and the Company
provides 15 days’ prior written notice to any increase in the Conversion Rate to the Trustee and
Holders. The Company may also make such an increase to the Conversion Rate as the Board of
Directors determines would avoid or diminish U.S. federal income tax to holders of shares of Common
Stock in connection with a dividend or distribution of stock (or rights to acquire stock) or from
any event treated as such for U.S. federal income tax purposes.

       Section 4.13 Payment of Cash in Lieu of Common Stock.

     (a) In lieu of delivery of some or all of the shares of Common Stock otherwise
issuable upon notice of conversion of any Securities, Holders surrendering Securities for
conversion shall receive for each $1,000 principal amount of Securities surrendered for conversion:
(A) cash in an amount equal to the lesser of (1) $1,000 and (2) the Conversion Value; and, in
addition to amounts distributed pursuant to (A), (B) if the Conversion Value is greater than
$1,000, a number of shares of Common Stock equal to the sum of the Daily Share Amounts for each of
the twenty consecutive Trading Days in the Conversion Reference Period, appropriately adjusted to
reflect stock splits, stock dividends, combinations or similar events occurring during the
Conversion Reference Period. The Company will deliver such cash and any shares of Common Stock,
together with any cash payable for fractional shares, to such Holder in accordance with Section
4.02(a).

     (b) For the purposes of Section 4.13(a), in the event that any of Conversion Value,
Daily Share Amounts or Volume Weighted Average Price cannot be determined for all portions of the
Conversion Reference Period, the Company’s Board of Directors shall in good faith determine the
values necessary to calculate the Conversion Value, Daily Share Amounts and Volume Weighted Average
Price, as applicable.

ARTICLE 5

COVENANTS

       Section 5.01 Payment of Securities.

     (a) 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. A payment of principal or
interest (including Contingent Interest, if any) shall be considered paid on the date it is due if
the Paying Agent (other than the Company) holds by 11:00 a.m., New York City time, on that date
money, deposited by or on behalf of the Company sufficient to make the payment. Subject to Section
4.02, accrued and unpaid interest on any Security that is payable, and is punctually paid or duly
provided for, on any Interest Payment Date shall be paid to the Person in whose name that Security
is registered at the close of

43

 

business on the Regular Record Date for such interest at the office or agency of the Company
maintained for such purpose. Principal, interest, the Redemption Price, the Repurchase Price, the
Designated Event Purchase Price and Contingent Interest, if any, in each case if payable, shall be
considered paid on the applicable date due if on such date the Trustee or the Paying Agent holds,
in accordance with this Indenture, money sufficient to pay all such amounts then due. The Company
shall, to the fullest extent permitted by law, pay interest in immediately available funds on
overdue principal amount and interest at the annual rate borne by the Securities compounded
semiannually, which interest shall accrue from the date such overdue amount was originally due to
the date payment of such amount, including interest thereon, has been made or duly provided for.
All such interest shall be payable on demand.

     (b) Payment of the principal of and interest, including Contingent Interest, if any,
on the Securities shall be made at the office or agency of the Company maintained for that purpose
in the Borough of Manhattan, The City of New York (which shall initially be at the address set
forth in Section 2.03(c)) or at the Corporate Trust Office of the Trustee in such coin or currency
of the United States of America as at the time of payment is legal tender for payment of public and
private debts; provided, however, that at the option of the Company payment of
interest may be made by wire transfer or 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 is not the Depositary or its nominee
and it has provided in writing wire transfer instructions to the Trustee at least 10 Business Days
prior to the payment date. Any wire transfer instructions received by the Trustee will remain in
effect until revoked by the Holder. Notwithstanding the foregoing, so long as this Security is
registered in the name of a Depositary or its nominee, all payments hereon shall be made by wire
transfer of immediately available funds to the account of the Depositary or its nominee.

       Section 5.02 SEC and Other Reports.

     (a) The Company shall file all reports and other information and documents which it
is required to file with the SEC pursuant to Section 13 or 15(d) of the Exchange Act, and within 15
days after it files or should have filed them with the SEC, the Company shall file copies of all
such reports, information and other documents with the Trustee; provided that any such
reports, information and documents filed with the SEC pursuant to its Electronic Data Gathering,
Analysis and Retrieval (or EDGAR) system shall be deemed to be filed with the Trustee. The Company
also shall comply with the provisions of 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 5.03 Compliance Certificates.

     The Company and each Notes Guarantor (to the extent that such Notes Guarantor is so required
under the TIA) shall deliver to the Trustee, within 120 days after the end of each fiscal year of
the Company (beginning with the fiscal year ending December 31, 2006), an Officers’ Certificate as
to the signer’s knowledge of the Company’s compliance with all conditions and covenants on its part
contained in this Indenture and stating whether or not the signer knows of any Default or Event of
Default. If such signer knows of such a Default or Event of Default, the Officers’ Certificate
shall describe the Default or Event of Default and the efforts made to remedy the same. For the
purposes of this Section 5.03,

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compliance shall be determined without regard to any grace period or requirement of notice
provided pursuant to the terms of this Indenture.

       Section 5.04 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 5.05 Maintenance of Corporate Existence.

     Subject to Article 6, the Company and the Notes Guarantors will do or cause to be done all
things necessary to preserve and keep in full force and effect their corporate existence.

       Section 5.06 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 accrued but unpaid interest or Contingent Interest, if
any, 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.

       Section 5.07 Payment of Contingent Interest.

     (a) If Contingent Interest is payable by the Company for any semi-annual period, the Company
shall deliver to the Trustee notice that the Company is required to pay Contingent Interest for
such semi-annual period, on or prior to the interest payment date relating to such payment of
Contingent Interest. The notice shall set forth the amount of Contingent Interest per $1,000
principal amount of Securities.

     (b) For U.S. federal income tax purposes, the Securities shall be treated as indebtedness
subject to U.S. Treasury regulations governing contingent payment debt instruments. Each Holder,
by its acceptance of a Security agrees to be bound by the Company’s application of the U.S.
Treasury regulations that govern contingent payment debt instruments including the Company’s
projected payment schedule and its determination that the rate at which interest will be deemed to
accrue for U.S. federal income tax purposes will be 9.10%. A Holder of Securities may obtain the
amount of original issue discount, issue date, yield to maturity, comparable yield and projected
payment schedule by submitting a written request for it to the Company at the following address:
10700 Bren Road West, Minnetonka, Minnesota 55343, Attention: Carmen Diersen, Chief Financial
Officer.

       Section 5.08 Maintenance of Office or Agency.

     The Company will maintain an office or agency in the Borough of Manhattan, the City of New
York, where the Securities may be presented or surrender for payment or surrendered for
registration of transfer, purchase or redemption and where notices and demands to or upon the
Company in respect of the Securities and this Indenture may be served, which shall initially be one
such office or agency of the Trustee for all of the aforesaid purposes. The Company shall give
prompt written notice to the Trustee of

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the location, and of any change in the location, of any such office or agency (other than a
change in the location of the office of the Trustee). If at any time the Company shall fail to
maintain any such required office or agency or shall fail to furnish the Trustee with the address
thereof, such presentations, surrenders, notices and demands may be made or served at the address
of the Trustee set forth in Section 14.02.

     The Company may also from time to time designate one or more other offices or agencies where
the Securities 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.

       Section 5.09 Limitation on Incurring Senior Subordinated Indebtedness.

     The Company will not, directly or indirectly, incur, or suffer to exist, any indebtedness that
by its terms would expressly rank senior in right of payment to the Securities and subordinate in
right of payment to any of its Senior Debt.

     For the purposes of this Section 5.09, incur means, with respect to any indebtedness or other
obligation of any Person, to create, issue, incur (including by conversion, exchange or otherwise),
assume, guarantee or otherwise become liable in respect of such indebtedness or other obligation or
the recording, as required pursuant to GAAP or otherwise, of any such indebtedness or other
obligation on the balance sheet of such Person (and “incurrence,” “incurred” and “incurring” shall
have meanings correlative to the foregoing). Indebtedness of any Person or any of its subsidiaries
acquired by the Company or existing at the time such Person becomes a Subsidiary of the Company (or
is merged into or consolidated with the Company or any Subsidiary of the Company), whether or not
such indebtedness was incurred in connection with, as a result of, or in contemplation of, such
Person becoming a Subsidiary of the Company (or being merged into or consolidated with the Company
or any Subsidiary of the Company), shall be deemed incurred at the time any such Person becomes a
Subsidiary or merges into or consolidates with the Company or any Subsidiary of the Company.

ARTICLE 6

CONSOLIDATION; MERGER; CONVEYANCE; TRANSFER OR LEASE

       Section 6.01 Company May Consolidate, Etc., Only on Certain Terms.

     The Company may not consolidate with or merge into any Person (unless the Company is the
surviving corporation) or convey, transfer or lease the property and assets, substantially as an
entity, of the Company to another Person unless:

     (1) the Person (if other than the Company) formed by such consolidation or
into which the Company is merged, or the Person which acquires by conveyance, transfer or
lease all or substantially all of the properties and assets of the Company, (A) shall be (i)
a corporation, or (ii) a limited liability company, partnership or trust and as a result of
such transaction the Securities will not become convertible into the equity interests of
such entity, in each of cases (i) and (ii) organized and existing under the laws of the
United States of America or any state thereof or the District of Columbia and (B) such
Person (if other than the Company) expressly assumes, by an indenture supplemental hereto,
executed and delivered to the Trustee, in form satisfactory to the Trustee, the obligations
of the Company under the Securities and this Indenture and the performance or observance of
every covenant and provision of this Indenture and the Securities required on the part of
the Company to be performed or observed and the conversion rights shall

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be provided for in accordance with Article 4, 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;

     (2) 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 occurred and be continuing; and

     (3) the Company shall have, at or prior to the effective date of such
consolidation, merger or transfer, delivered to the Trustee an Officers’ Certificate and an
Opinion of Counsel, each stating that such consolidation, merger or transfer complies with
this Article 6.01 and, if a supplemental indenture is required in connection with such
transaction, such supplemental indenture complies with this Article 6, and that all
conditions precedent herein provided for relating to such transaction have been complied
with.

       Section 6.02 Successor Substituted.

     Upon any consolidation of the Company with, or merger of the Company into, any other Person or
any conveyance, transfer or lease substantially as an entity, of the properties and assets of the
Company and its Subsidiaries, taken as a whole, in accordance with Section 6.01, the successor
Person formed by such consolidation or into which the Company is merged or to which such
conveyance, transfer or lease 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, and except for obligations the predecessor Person may have under a supplemental indenture,
the predecessor Person shall be relieved of all obligations and covenants under this Indenture and
the Securities.

ARTICLE 7

DEFAULT AND REMEDIES

       Section 7.01 Events of Default.

     (a) An “Event of Default,” wherever used herein, means any one of the following
events (whatever the reason for such Event of Default and whether it 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) failure to pay when due the Principal, Redemption Price, Repurchase
Price, or Designated Event Purchase Price of any Security, when the same becomes due and
payable whether at the Final Maturity Date, upon redemption, repurchase, acceleration or
otherwise, and regardless of whether such payment is permitted pursuant to the subordination
provisions under Article 11; or

     (2) failure to pay an installment of interest or Contingent Interest, if any,
on any of the Securities, which failure continues for 30 days after the date when due,
regardless of whether such payment is permitted pursuant to the subordination provisions
under Article 11; or

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     (3) failure to perform or observe (or obtain a waiver with respect to) any
other term, covenant or agreement contained in the Securities or this Indenture for a period
of 60 days after receipt by the Company of a Notice of Default specifying such failure; or

     (4) failure to deliver when due all cash and shares of Common Stock, if any,
deliverable upon exercise of a Holder’s conversion right, which failure continues for 10
calendar days, regardless of whether such payment is permitted pursuant to the subordination
provisions under Article 11; or

     (5) failure to repurchase any Securities on a Designated Event Repurchase
Date or on a Repurchase Date or redeem any Securities on a Redemption Date; or

     (6) failure to provide timely notice of a Designated Event; or

     (7) the Company or any of its Significant Subsidiaries or any Notes Guarantor
fails to make any payment at maturity on any indebtedness, including any applicable grace
period, in an amount in excess of $10,000,000, and such amount has not been paid or
discharged within a period of 30 days after receipt of a Notice of Default; or

     (8) default on any indebtedness of the Company or any of its Significant
Subsidiaries or any Notes Guarantor that results in the acceleration of any indebtedness in
an amount in excess of $10,000,000, without this indebtedness being discharged or the
acceleration being rescinded or annulled for 30 days after receipt of a Notice of Default;
or

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

     (A) commences as a debtor a voluntary case or proceeding; or

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

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

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

     (E) files a petition in bankruptcy or answer or consent seeking
reorganization or relief; or

     (F) consents to the filing of such a petition or the appointment of
or taking possession by a Receiver; or

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

     (A) grants relief against the Company or any Significant Subsidiary
of the Company in an involuntary case or proceeding or adjudicates the Company or
any Significant Subsidiary of the Company insolvent or bankrupt;

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

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

and in each case the order or decree remains unstayed and in effect for 30 consecutive days;
or

     (11) any Notes Guarantee ceases to be in full force and effect (other than in
accordance with the terms of such Notes Guarantee) or any Notes Guarantor disaffirms its
obligations under its Notes Guarantee.

     The term “Bankruptcy Law” means Title 11 of the United States Code (or any successor thereto)
or any similar federal or state law for the relief of debtors. The term “Receiver” means any
receiver, trustee, assignee, liquidator, sequestrator or similar official under any Bankruptcy Law.

     (b) Notwithstanding Section 7.01(a), no Event of Default under clauses (3), (7) or
(8) of Section 7.01(a) shall occur until the Trustee notifies the Company in writing, 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 (a “Notice of Default”), and the Company does
not cure the Default within the time specified in clause (3), (7) or (8) of Section 7.01(a), as
applicable, after receipt of such notice. A notice given pursuant to this Section 7.01 shall be
given by registered or certified mail, 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 7.01 is cured,
it ceases.

     (c) The Company will deliver to the Trustee, within thirty days after becoming aware
of the occurrence of a Default or Event of Default, written notice thereof.

     The Trustee shall not be charged with knowledge of any Event of Default unless written notice
thereof shall have been given to a Trust Officer with responsibility for this Indenture at the
Corporate Trust Office of the Trustee by the Company, a Paying Agent, any Holder or any agent of
any Holder or unless a Trust Officer with responsibility for this Indenture acquires actual
knowledge of such Event of Default in the course of performing other duties pursuant to this
Indenture.

       Section 7.02 Acceleration.

     If an Event of Default (other than an Event of Default specified in clause (9) or (10) of
Section 7.01(a) with respect to the Company) occurs and is continuing with respect to the Company,
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
the principal amount and accrued and unpaid interest, if any, and accrued and unpaid Contingent
Interest, if any, through the date of payment on all the Securities to be immediately due and
payable. Upon such a declaration, such principal amount and such accrued and unpaid interest, if
any, and such accrued and unpaid Contingent Interest, if any, shall be due and payable immediately.
If an Event of Default specified in Section 7.01(a)(9) or (10) occurs in respect of the Company
and is continuing, the principal amount and accrued but unpaid interest, if any, and accrued and
unpaid Contingent Interest, if any, on all the Securities shall become and be immediately due and
payable without any declaration or other act on the part of the Trustee or any Holders of
Securities. The Holders of a majority in aggregate principal amount of the Securities then
outstanding by notice to the Trustee may rescind an acceleration and its consequences if (a) all
existing Events of Default, other than the nonpayment of the principal of the Securities which have

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become due solely by such declaration of acceleration, 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) 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 8.07 have been made. No such rescission
shall affect any subsequent Default or impair any right consequent thereto.

       Section 7.03 Other Remedies.

     (a) 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 payment
of the principal amount and accrued and unpaid interest, if any, and accrued and unpaid Contingent
Interest, if any, on the Securities or to enforce the performance of any provision of the
Securities or this Indenture.

     (b) 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
applicable law.

       Section 7.04 Waiver of Defaults and Events of Default.

     Subject to Sections 7.07 and 10.02, 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, except if the Company fails to pay the principal of, premium, if any, or any accrued but
unpaid interest, including Contingent Interest, on any Security, the Company fails to convert any
Securities into cash or, if applicable, Common Stock, or any Default or Event of Default in respect
of any provision of this Indenture or the Securities which, under Section 10.02, 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 to exist.

       Section 7.05 Control by Majority.

     The Holders of a majority in aggregate principal amount of the Securities then outstanding may
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 it. However, the Trustee may refuse to
follow any direction that conflicts with law or this Indenture, that 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 security or indemnity satisfactory to it;
provided, however, that the Trustee may take any other action deemed proper by the
Trustee which is not inconsistent with such direction.

       Section 7.06 Limitations on Suits.

     (a) A Holder may not pursue any remedy with respect to this Indenture or the
Securities (except actions for payment of overdue principal, premium, if any, or interest,
including Contingent Interest, or for the conversion of the Securities pursuant to Article 4)
unless:

     (1) the Holder gives to the Trustee written notice of a continuing Event of
Default;

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     (2) the Holders of at least 25% in aggregate principal amount of the then
outstanding Securities make a written request to the Trustee to pursue the remedy;

     (3) such Holder or Holders offer to the Trustee reasonable security or
indemnity to the Trustee against any cost, expenses or liabilities of taking action;

     (4) the Trustee does not comply with the request within 60 days after receipt
of the request and the offer of security or indemnity; and

     (5) no direction inconsistent with such written request has been given to the
Trustee during such 60-day period by the Holders of a majority in aggregate principal amount
of the Securities then outstanding.

     (b) No Holder of a Security shall have any right under any provision of this
Indenture or the Securities to affect, disturb, or prejudice the rights of another Holder of a
Security or to obtain a preference or priority over another Holder of a Security.

       Section 7.07 Rights of Holders to Receive Payment and to Convert.

     Notwithstanding any other provision of this Indenture but subject to the provisions of Article
11 hereof, the right of any Holder of a Security to receive payment of the principal amount,
interest, Redemption Price, Repurchase Price, Designated Event Purchase Price, if any, or
Contingent Interest, if any, in respect of the Securities held by such Holder, on or after the
respective due dates expressed in the Securities and this Indenture (whether upon repurchase or
otherwise), and to convert such Security in accordance with Article 4, and to bring suit for the
enforcement of any such payment on or after such respective due dates or for the right to convert
in accordance with Article 4, is absolute and unconditional and shall not be impaired or affected
without the consent of the Holder.

       Section 7.08 Collection Suit by Trustee.

     If an Event of Default described in clause (1) or (2) of Section 7.01(a) occurs and is
continuing, the Trustee may recover judgment in its own name and as trustee of an express trust
against the Company or another obligor on the Securities (including the Notes Guarantors) for the
whole amount owing with respect to the Securities and such further amount as shall be sufficient to
cover the costs and expenses of collection, including the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel.

       Section 7.09 Trustee May File Proofs of Claim.

     The Trustee may file such proofs of claim and other papers or documents as may be necessary or
advisable in order to have the claims of the Trustee (including any claim for the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and the
Holders allowed in any judicial proceedings relative to the Company (or any other obligor on the
Securities, including the Notes Guarantors), its creditors or its property and shall be entitled
and empowered to collect and receive any money or other property payable or deliverable on any such
claims and to distribute the same, and any Receiver in any such judicial proceeding is hereby
authorized by each Holder to make such payments to the Trustee and, in the event that the Trustee
shall consent to the making of such payments directly to the Holders, to pay to the Trustee any
amount due to it for the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under Section 8.07, and to
the extent that such payment of the reasonable compensation, expenses, disbursements and advances
in any such proceedings shall be denied for any reason, payment of the same

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shall be secured by a lien on, and shall be paid out of, any and all distributions, dividends,
money, securities and other property which the Holders may be entitled to receive in such
proceedings, whether in liquidation or under any plan of reorganization or arrangement or
otherwise. Nothing herein contained shall be deemed to authorize the Trustee to authorize or
consent to, or, on behalf of any Holder, to authorize, accept or adopt 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 7.10 Priorities.

     (a) If the Trustee collects any money pursuant to this Article 7, it shall pay out
the money in the following order:

     (1) First, to the Trustee for amounts due under Section 8.07;

     (2) Second, to the Holders of Senior Debt to the extent required by Article
11;

     (3) Third, to Holders for amounts due and unpaid on the Securities for the
principal amount, interest, and Contingent Interest, as applicable, ratably, without
preference or priority of any kind, according to such respective amounts due and payable on
the Holders’ Securities;

     (4) Fourth, to such other Person or Persons, if any, to the extent entitled
thereto; and

     (5) Fifth, the balance, if any, to the Company and the Notes Guarantors.

     (b) The Trustee may fix a record date and payment date for any payment to Holders
pursuant to this Section 7.10.

       Section 7.11 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 7.11 does not apply to a
suit made by the Trustee, a suit by a Holder pursuant to Section 7.07, or a suit by Holders of more
than 10% in aggregate principal amount of the Securities then outstanding. This Section 7.11 shall
be in lieu of Section 315(e) of the TIA and such Section 315(e) is hereby expressly excluded from
this Indenture, as permitted by the TIA.

ARTICLE 8

TRUSTEE

       Section 8.01 Obligations of Trustee.

     (a) If an Event of Default of which a Responsible Officer of the Trustee shall have
actual knowledge has occurred and is continuing, the Trustee shall exercise such of the rights and
powers vested in it by this Indenture and use the same degree of care and skill in its exercise as
a prudent person would exercise or use under the circumstances in the conduct of his or her own
affairs.

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     (b) Except during the continuance of an Event of Default of which a Responsible
Officer of the Trustee shall have actual knowledge:

     (1) the Trustee need perform only those duties as are specifically set forth
in this Indenture and no others; and

     (2) in the absence of bad faith on its part, the Trustee may conclusively
rely, as to the truth of the statements and the correctness of the opinions expressed
therein, upon certificates or opinions furnished to the Trustee and conforming to the
requirements of this Indenture. The Trustee, however, shall examine any certificates and
opinions which by any provision hereof are specifically required to be delivered to the
Trustee to determine whether or not they conform to the requirements of this Indenture, but
need not confirm or investigate the accuracy of mathematical calculations or other facts
stated therein.

     This Section 8.01(b) shall be in lieu of Section 315(a) of the TIA and such Section
315(a) is hereby expressly excluded from this Indenture, as permitted by the TIA.

     (c) The Trustee may not be relieved from liability for its own gross negligent
action, its own gross negligent failure to act, or its own willful misconduct, except that:

     (1) this paragraph does not limit the effect of Section 8.01(b);

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

     (3) the Trustee shall not be liable in its individual capacity with respect
to any action it takes or omits to take in good faith in accordance with this Indenture or a
direction received by it pursuant to Section 7.05.

     This Section 8.01(c) shall be in lieu of Sections 315(d)(1), 315(d)(2) and 315(d)(3) of
the TIA and such Sections are hereby expressly excluded from this Indenture as permitted by
the TIA.

     (d) No provision of this Indenture shall require the Trustee to expend or risk its
own funds or otherwise incur any financial liability in the performance of any of its duties
hereunder or in the exercise of any of its rights or powers unless the Trustee shall have received
adequate security or indemnity in its opinion against potential costs and liabilities incurred by
it relating thereto.

     (e) Every provision of this Indenture that in any way relates to the Trustee is
subject to subsections (a), (b), (c) and (d) of this Section 8.01.

     (f) The Trustee shall not be liable for interest on any money received by it except
as the Trustee may agree in writing with the Company. Money held in trust by the Trustee need not
be segregated from other funds except to the extent required by law.

       Section 8.02 Rights of Trustee.

     (a) Subject to Section 8.01:

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     (1) The Trustee may rely conclusively and shall be protected in acting or
refraining from acting upon on any document believed by it to be genuine and to have been
signed or presented by the proper person. The Trustee need not investigate any fact or
matter stated in the document.

     (2) Before the Trustee acts or refrains from acting, it may require an
Officers’ Certificate or an Opinion of Counsel, which shall conform to Section 14.04(b).
The Trustee shall not be liable for any action it takes or omits to take in good faith in
reliance on such Officers’ Certificate or Opinion of Counsel.

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

     (4) The Trustee shall not be personally liable for any action it takes or
omits to take in good faith which it believes to be authorized or within its rights or
powers.

     (5) The Trustee may consult with counsel of its selection, and the advice or
opinion of such counsel as to matters of law shall be full and complete authorization and
protection in respect of any such action taken, omitted or suffered by it hereunder in good
faith and in accordance with the advice or opinion of such counsel.

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

     (7) The Trustee shall not be bound to make any investigation into the facts
or matters stated in any resolution, certificate, statement, instrument, opinion, report,
notice, request, direction, consent, order, bond, debenture, note, other evidence of
indebtedness or other paper or document, but the Trustee, in its discretion, may make such
further inquiry or investigation into such facts or matters as it may see fit, and, if the
Trustee shall determine to make such further inquiry or investigation, it shall be entitled
to examine the books, records and premises of the Company, personally or by agent or
attorney at the sole cost of the Company, and shall incur no liability or additional
liability of any kind by reason of such inquiry or investigation. 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 from the Company’s own funds.

     (8) The Trustee shall not be deemed to have notice or knowledge of any
Default, Event of Default, or Designated Event 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, and such notice references
the Securities and this Indenture. In the absence of receipt of such notice or actual
knowledge, the Trustee may conclusively assume that there is no Default, Event of Default,
or Designated Event.

     (9) 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

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by, the Trustee in each of its capacities hereunder, including, without limitation as
Paying Agent, Registrar and Conversion Agent, and to each agent, custodian and other Person
employed to act hereunder.

     (10) The right of the Trustee to perform any discretionary act enumerated in
this Indenture shall not be construed as a duty, and the Trustee shall not be answerable for
other than its own gross negligence or willful misconduct in the performance of such act.

       Section 8.03 Individual Rights of Trustee.

     The Trustee in its individual or any other capacity may become the owner or pledgee of
Securities and may otherwise deal with the Company or an Affiliate of the Company with the same
rights it would have if it were not Trustee. Any Agent may do the same with like rights. However,
the Trustee is subject to Sections 8.10 and 8.11.

       Section 8.04 Trustee’s Disclaimer.

     The Trustee makes no representation as to the validity or adequacy of this Indenture or the
Securities and the Trustee assumes no responsibility for their correctness. It shall not be
accountable for the Company’s use of the proceeds from the Securities and it shall not be
responsible for any statement in the Securities other than its certificate of authentication.

       Section 8.05 Notice of Default or Events of Default.

     If a Default or an Event of Default occurs and is continuing and if it is known to the
Trustee, the Trustee shall mail to each Holder of a Security notice of all uncured Defaults or
Events of Default within 30 days after it becomes known to the Trustee. However, the Trustee may
withhold the notice if and for so long as a committee of its Trust Officers in good faith
determines that withholding notice is in the interests of Holders of Securities, except in the case
of a Default or an Event of Default in payment of the principal of, or premium, if any, or
interest, including Contingent Interest, on any Security when due or in the payment of any
redemption or purchase obligation, or the Company’s failure to convert Securities when obligated to
convert them. This Section 8.05 is in lieu of section 315(b) of the TIA and such provision is
expressly excluded from this Indenture as permitted by the TIA.

       Section 8.06 Reports by Trustee to Holders.

     (a) If a report is required by TIA Section 313, within 60 days after each May 15,
beginning with the May 15 following the date of this Indenture, the Trustee shall mail to each
Holder of Securities a brief report dated as of such May 15 that complies with TIA Section 313(a).
If required by TIA Section 313, the Trustee also shall comply with TIA Sections 313(b)(2) and (c).

     (b) A copy of each report at the time of its mailing to Holders of Securities shall
be mailed to the Company and, to the extent required by the TIA, filed with the SEC, and each stock
exchange, if any, on which the Securities are listed. The Company shall notify the Trustee
whenever the Securities become listed on any stock exchange or listed or admitted to trading on any
quotation system and any changes in the stock exchanges or quotation systems on which the
Securities are listed or admitted to trading and of any delisting thereof.

       Section 8.07 Compensation and Indemnity.

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     (a) The Company shall pay to the Trustee from time to time such compensation (as
agreed to from time to time by the Company and the Trustee in writing) for its services (which
compensation shall not be limited by any provision of law in regard to the compensation of a
trustee of an express trust). The Company shall reimburse the Trustee upon request for all
reasonable disbursements, expenses and advances incurred or made by it. Such expenses may include
the reasonable compensation, disbursements and expenses of the Trustee’s agents and counsel.

     (b) The Company shall indemnify the Trustee or any predecessor Trustee (which for
purposes of this Section 8.07 shall include its officers, directors, employees and agents) for, and
hold it harmless against, any and all loss, liability or expense including taxes (other than
franchise taxes and taxes based upon, measured by or determined by the income of the Trustee),
incurred by it in connection with the acceptance or administration of its duties under this
Indenture or any action or failure to act as authorized or within the discretion or rights or
powers conferred upon the Trustee hereunder including the reasonable costs and expenses of the
Trustee and its counsel in defending (including reasonable legal fees and expenses) itself against
any claim or liability in connection with the exercise or performance of any of its powers or
duties hereunder. The Trustee shall notify the Company promptly of any claim asserted against the
Trustee for which it may seek indemnity. The Company need not pay for any settlement effected
without its prior written consent, which shall not be unreasonably withheld. Anything in this
Indenture to the contrary notwithstanding, in no event shall the Trustee be liable for special,
indirect or consequential loss or damage of any kind whatsoever (including but not limited to lost
profits), even if the Trustee has been advised of the likelihood of such loss or damage and
regardless of the form of action.

     (c) The Company need not reimburse the Trustee for any expense or indemnify it
against any loss or liability incurred by it resulting from its gross negligence, willful
misconduct or bad faith.

     (d) The Trustee shall have a senior claim to which the Securities are hereby made
subordinate on all money or property held or collected by the Trustee. The obligations of the
Company under this Section 8.07 shall survive the satisfaction and discharge of this Indenture or
the resignation or removal of the Trustee.

     (e) When the Trustee incurs expenses or renders services after an Event of Default
specified in clause (10) or (11) of Section 7.01(a) occurs, the expenses and the compensation for
the services are intended to constitute expenses of administration under any Bankruptcy Law. The
provisions of this Section shall survive the termination of this Indenture.

       Section 8.08 Replacement of Trustee.

     (a) The Trustee may resign by so notifying the Company. The Holders of a majority
in aggregate principal amount of the Securities then outstanding may remove the Trustee by so
notifying the Trustee and the Company and may, with the Company’s written consent, appoint a
successor Trustee. The Company may remove the Trustee at any time, so long as no Default or Event
of Default has occurred and is continuing, and appoint a Successor Trustee in accordance with this
Section 8.08.

     (b) If the Trustee resigns or is removed or if a vacancy exists in the office of
Trustee for any reason, the Company shall promptly appoint a successor Trustee. If the Company
fails to promptly appoint a successor Trustee, the Trustee shall have the right to choose a
qualified Trustee as successor, and the Company shall appoint such successor as Trustee. The
resignation or removal of a Trustee shall not be effective until a successor Trustee shall have
delivered the written acceptance of its appointment as described below.

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     (c) If a successor Trustee does not take office within 30 days after the retiring
Trustee resigns or is removed, the retiring Trustee, the Company or the Holders of 10% in principal
amount of the Securities then outstanding may petition any court of competent jurisdiction for the
appointment of a successor Trustee at the expense of the Company.

     (d) If the Trustee fails to comply with Section 8.10, any Holder may petition any
court of competent jurisdiction for the removal of the Trustee and the appointment of a successor
Trustee.

     (e) A successor Trustee shall deliver a written acceptance of its appointment to the
retiring Trustee and to the Company. Immediately after that, the retiring Trustee shall transfer
all property held by it as Trustee to the successor Trustee and be released from its obligations
(exclusive of any liabilities that the retiring Trustee may have incurred while acting as Trustee)
hereunder, the resignation or removal of the retiring Trustee shall become effective, and the
successor Trustee shall have all the rights, powers and duties of the Trustee under this Indenture.
A successor Trustee shall mail notice of its succession to each Holder.

     (f) A retiring Trustee shall not be liable for the acts or omissions of any
successor Trustee after its succession.

     (g) Notwithstanding replacement of the Trustee pursuant to this Section 8.08, the
Company’s obligations under Section 8.07 shall continue for the benefit of the retiring Trustee.

       Section 8.09 Successor Trustee by Merger, Etc.

     If the Trustee consolidates with, merges or converts into, or transfers all or substantially
all of its corporate trust business (including the administration of this Indenture) to, another
corporation, the resulting, surviving or transferee corporation, without any further act, shall be
the successor Trustee; provided such transferee corporation shall qualify and be eligible
under Section 8.10. Such successor Trustee shall promptly mail notice of its succession to the
Company and each Holder.

       Section 8.10 Eligibility; Disqualification.

     The Trustee shall always satisfy the requirements of paragraphs (1), (2) and (5) of TIA
Section 310(a). The Trustee (or its parent holding company) shall have a combined capital and
surplus of at least $50,000,000 as set forth in its most recent published annual report of
condition. If at any time the Trustee shall cease to satisfy any such requirements, it shall
resign immediately in the manner and with the effect specified in this Article 8. The Trustee
shall be subject to the provisions of TIA Section 310(b). Nothing herein shall prevent the Trustee
from filing with the SEC the application referred to in the penultimate paragraph of TIA Section
310(b).

       Section 8.11 Preferential Collection of Claims Against Company.

     The Trustee shall comply with TIA Section 311(a), excluding any creditor relationship listed
in TIA Section 311(b). A Trustee who has resigned or been removed shall be subject to TIA Section
311(a) to the extent indicated therein.

ARTICLE 9

SATISFACTION AND DISCHARGE OF INDENTURE

       Section 9.01 Satisfaction and Discharge of Indenture.

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     (a) This Indenture shall cease to be of further force and effect (except as to any
surviving rights of conversion, registration of transfer or exchange of Securities herein expressly
provided for and except as further provided below), and the Trustee, on demand of and at the
expense of the Company, shall execute proper instruments acknowledging satisfaction and discharge
of this Indenture, when either:

     (A) all Securities theretofore authenticated and delivered (other
than (i) Securities which have been destroyed, lost or stolen and which have been
replaced or paid as provided in Section 2.07 and (ii) Securities for whose payment
money has theretofore been deposited in trust and thereafter repaid to the Company
as provided in Section 9.03) have been delivered to the Trustee for cancellation; or

     (B) all such Securities not theretofore delivered to the Trustee for
cancellation have become due and payable,

     provided, that

     (1) the Company has deposited with the Trustee or a Paying Agent (other than
the Company or any of its Affiliates) immediately available funds in trust for the purpose
of and in an amount sufficient to pay and discharge all indebtedness related to such
Securities not theretofore delivered to the Trustee for cancellation, for principal and
interest to the date of such deposit;

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

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

     (b) Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company with respect to the conversion privilege and the Conversion Rate of the
Securities pursuant to Article 4, the obligations of the Company to the Trustee under Section 8.07
and, if money shall have been deposited with the Trustee pursuant to clause (2) of Section 9.01(a),
the provisions of Sections 2.03, 2.04, 2.05, 2.06, 2.07, 2.12, 3.08, 3.09, 3.10, 3.12, 3.13, 3.14,
3.15, 5.01 and 12.05, Article 4, and this Article 9, shall survive until the Securities have been
paid in full.

       Section 9.02 Application of Trust Money.

     Subject to the provisions of Section 9.03, the Trustee or a Paying Agent shall hold in trust,
for the benefit of the Holders, all money deposited with it pursuant to Section 9.01 and shall
apply the deposited money in accordance with this Indenture and the Securities to the payment of
the principal of and interest, including Contingent Interest, on the Securities.

       Section 9.03 Repayment to Company.

     (a) The Trustee and each Paying Agent shall promptly pay to the Company upon request
any excess money (1) deposited with them pursuant to Section 9.01 and (2) held by them at any time.

     (b) The Trustee and each Paying Agent shall, subject to applicable abandonment
property laws, pay to the Company upon request any money held by them for the payment of principal
or interest that remains unclaimed for two years after a right to such money has matured;
provided, however, that the Trustee or such Paying Agent, before being required to
make any such payment, may at the expense of

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the Company cause to be mailed to each Holder entitled to such money notice that such money
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 then remaining will be repaid to the
Company. After payment to the Company, Holders entitled to money must look to the Company for
payment as general creditors unless an applicable abandoned property law designates another person.

     Section 9.04 Reinstatement.

     (a) If the Trustee or any Paying Agent is unable to apply any money in accordance
with Section 9.02 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 9.01 until such time as the
Trustee or such Paying Agent is permitted to apply all such money in accordance with Section 9.02;
provided, however, that if the Company has made any payment of the principal of or
interest on 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 from the
money held by the Trustee or such Paying Agent.

     Section 9.05 Release of Notes Guarantors.

     If the Company discharges its obligations under the Indenture pursuant to Section 9.01, the
Notes Guarantors will be released from their obligations under the Notes Guarantees.

ARTICLE 10

AMENDMENTS; SUPPLEMENTS AND WAIVERS

     Section 10.01 Without Consent of Holders.

     (a) The Company, any Notes Guarantors, if applicable, and the Trustee may amend or
supplement this Indenture or the Securities without notice to or consent of any Holder of a
Security for the purpose of:

     (1) evidencing a successor to the Company or a Notes Guarantor and the
assumption by that successor of the obligations under this Indenture and the Securities, or
a Notes Guarantor, as applicable;

     (2) adding to the Company’s covenants for the benefit of the Holders or
surrendering any right or power conferred upon the Company;

     (3) securing the Company’s or a Notes Guarantor’s obligations in respect of
the Securities or a Notes Guarantee;

     (4) evidencing and providing for the acceptance of the appointment of a
successor trustee in accordance with Article 8;

     (5) complying with the requirements of the SEC in order to effect or maintain
the qualification of this Indenture under the TIA, as contemplated by this Indenture or
otherwise;

     (6) adding Notes Guarantors as permitted under this Indenture;

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     (7) curing any ambiguity, omission, inconsistency or correcting or
supplementing any defective provision contained in this Indenture; or

     (8) modifying any other provisions of this Indenture in any manner that will
not adversely affect the rights of the Holders in any material respect.

     Section 10.02 With Consent of Holders.

     (a) The Company, any Notes Guarantor, if applicable, 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. However, subject to
Section 10.04, without the written consent of each Holder affected, an amendment, supplement or
waiver may not:

     (1) alter the manner of calculation or reduce the rate of accrual of
interest, including Contingent Interest, on any Security or extend the time of payment of
any installment of interest on, or any Contingent Interest with respect to, any Security;

     (2) make any of the Securities payable in money other than that stated in the
Securities;

     (3) change the stated maturity of any Security;

     (4) reduce the principal amount of any Security or reduce any amount payable
upon any Designated Event Purchase Price (including any Make Whole Premium payable),
Redemption Date or Repurchase Date with respect to any of the Securities;

     (5) make any change that adversely affects the conversion rights of a Holder
in any respect other than as provided herein;

     (6) make any change that adversely affects the rights of Holders to require
the Company to purchase Securities at the option of Holders or upon a Designated Event;

     (7) impair the right to institute suit for payment or the enforcement of any
payment on or with respect to any Security or any Notes Guarantee or with respect to the
conversion of any Security;

     (8) change the currency of payment of principal of, or interest on, the
Securities;

     (9) modify the subordination provisions of the Securities or the Notes
Guarantees in a manner adverse to the Holders; or

     (10) reduce the percentage in aggregate principal amount of Securities
outstanding necessary to modify or amend this Indenture or to waive any past Default or
otherwise change the provisions in this Indenture that relate to modifying or amending this
Indenture.

     (b) Without limiting the provisions of Section 10.02(a) hereof, the Holders of a
majority in principal amount of the Securities then outstanding may, on behalf of all the Holders
of all Securities, (i) waive compliance by the Company and any Notes Guarantor with the restrictive
provisions of this Indenture, and (ii) waive any past Default of Event of Default under this
Indenture and its consequences, except an uncured failure to pay when due the principal amount or
accrued and unpaid interest, including

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Contingent Interest or the Redemption Price, Repurchase Price, or Designated Event Purchase
Price, or in the obligation to deliver cash or Common Stock, if any, with respect to any Security
or in respect of any provision which under this Indenture cannot be modified or amended without the
consent of the Holder of each outstanding Security affected.

     (c) After an amendment, supplement or waiver under this Section 10.02 becomes
effective, the Company shall promptly 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.

     Section 10.03 Compliance with Trust Indenture Act.

     Every amendment to or supplement of this Indenture or the Securities shall comply with the TIA
as in effect at the date of such amendment or supplement.

     Section 10.04 Revocation and Effect of Consents.

     (a) 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.

     (b) After an amendment, supplement or waiver becomes effective, it shall bind every
Holder of a Security.

     Section 10.05 Notation on or Exchange of Securities.

     If an amendment, supplement or waiver changes the terms of a Security, the Trustee may require
the Holder of the Security to deliver it to the Trustee. The Trustee may place an appropriate
notation on the Security about the changed terms and return it to the Holder. Alternatively, if
the Company or the Trustee so determines, the Company in exchange for the Security shall issue and
the Trustee shall authenticate a new Security that reflects the changed terms.

     Section 10.06 Trustee to Sign Amendments, Etc.

     The Trustee shall sign any amendment or supplemental indenture authorized pursuant to this
Article 10 if the amendment or supplemental indenture does not adversely affect the rights, duties,
liabilities or immunities of the Trustee. If it does, the Trustee may, in its sole discretion, but
need not, sign it. In signing or refusing to sign such amendment or supplemental indenture, the
Trustee shall be entitled to receive and, subject to Section 8.01, shall be fully protected in
relying upon, an Opinion of Counsel stating that such amendment or supplemental indenture is
authorized or permitted by this Indenture. The Company may not sign an amendment or supplemental
indenture until the Board of Directors approves it.

     Section 10.07 Effect of Supplemental Indentures.

     Upon the execution of any supplemental indenture under this Article 10, this Indenture shall
be modified in accordance therewith, and such supplemental indenture shall form a part of this
Indenture for

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all purposes; and every Holder of Securities theretofore or thereafter authenticated and
delivered hereunder shall be bound thereby.

ARTICLE 11

SUBORDINATION

     Section 11.01 Agreement to Subordinate.

     The Company covenants and agrees, and each Holder by accepting a Security likewise covenants
and agrees, that all Securities shall be issued subject to the provisions of this Article 11; and
each Person holding any Security, whether upon original issue or upon transfer, assignment or
exchange thereof, accepts and agrees to be bound by such provisions.

     The Securities shall, to the extent set forth in this Article 11, be subordinated in right of
payment to the prior payment in full, in cash, of all amounts that constitute Senior Debt. The
payment of the principal of, premium (including the Make Whole Premium), if any, interest, and
Contingent Interest, if any, on all Securities (including, but not limited to, the Redemption
Price, Repurchase Price and Designated Event Purchase Price) issued hereunder shall, to the extent
and in the manner hereinafter set forth, be subordinated and subject in right of payment to the
prior payment of all Senior Debt, whether outstanding at the date of this Indenture or thereafter
incurred, in full in cash or payment satisfactory to the holders of Senior Debt.

     No provision of this Article 11 shall prevent the occurrence of any Default or Event of
Default hereunder.

     Section 11.02 Payment to Holders.

     No payment shall be made with respect to the principal of, or premium, if any, interest and
Contingent Interest, if any, on the Securities (including, but not limited to, the Redemption
Price, Repurchase Price and Designated Event Purchase Price), and no redemption, repurchase or
other acquisition of the Securities shall occur and no deposit shall be made pursuant to Article 9
at a time when such deposited amounts would not otherwise be permitted under this Article 11 in
respect of the conversion of Securities if:

     (a) a default in the payment of any Senior Debt occurs and is continuing (or,
in the case of Senior Debt for which there is a period of grace, in the event of such a
default that continues beyond the period of grace, if any, specified in the instrument or
lease evidencing such Senior Debt), unless and until such default shall have been cured or
waived by the appropriate holders of the Senior Debt or shall have ceased to exist; or

     (b) a default, other than a payment default, on any Senior Debt occurs and is
continuing that then permits holders of such Senior Debt to accelerate the maturity of all
or any portion of such Senior Debt (or would permit such holders to so accelerate with the
giving of notice or the passage of time or both) and the Trustee receives a notice of the
default (a “Payment Blockage Notice”) from a Representative or holder of such Senior Debt or
the Company.

     Subject to the provisions of Section 11.05, if the Trustee receives any Payment Blockage
Notice pursuant to clause (b) above, no subsequent Payment Blockage Notice shall be effective for
purposes of this Section unless and until at least 365 days shall have elapsed since the Company’s
receipt of the immediately prior Payment Blockage Notice. No nonpayment default that existed or
was continuing on

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the date of delivery of any Payment Blockage Notice to the Trustee (unless such default was
waived, cured or otherwise ceased to exist and thereafter subsequently reoccurred) shall be, or be
made, the basis for a subsequent Payment Blockage Notice, whether or not within a period of 365
consecutive days.

     Unless this Article 11 otherwise prohibits payments on or distributions in respect of the
Securities at the time of such payments or distributions, the Company shall resume such payments on
the Securities:

     (A) in the case of a default referred to in clause (a) above, on the date
upon which the default is cured or waived by the requisite holders of Senior Debt or
otherwise ceases to exist, or

     (B) in the case of a default referred to in clause (b) above, on the earliest
to occur of (i) the date on which such default is cured or waived or otherwise ceases to
exist, (ii) 179 days after the date on which the applicable Payment Blockage Notice is
received, and (iii) the date such payment blockage period shall have been terminated by
written notice to the Company or the Trustee from the Person initiating such payment
blockage period; provided, that if the maturity of such Senior Debt has been
accelerated no payment may be made on the Securities until such default is cured or waived
or such Senior Debt is discharged or paid in full.

     Upon any payment by the Company, or distribution of assets of the Company of any kind or
character, whether in cash, property or securities, to creditors upon any dissolution or winding-up
or liquidation or reorganization of the Company (whether voluntary or involuntary) or in
bankruptcy, insolvency, receivership or similar proceedings, all amounts due or to become due upon
all Senior Debt shall first be paid in full in cash, or other payment satisfactory to the holders
of Senior Debt, before any payment is made on account of the principal of, premium, if any,
interest or Contingent Interest, if any, on the Securities (including, but not limited to, the
Redemption Price, Repurchase Price or Designated Event Purchase Price); and upon any such
dissolution or winding-up or liquidation or reorganization of the Company or bankruptcy,
insolvency, receivership or other proceeding, any payment by the Company, or distribution of assets
of the Company of any kind or character, whether in cash, property or securities, to which the
Holders or the Trustee would be entitled, except for the provision of this Article 11, shall
(except as aforesaid) be paid by the Company or by any receiver, trustee in bankruptcy, liquidating
trustee, agent or other Person making such payment or distribution, or by the Holders or by the
Trustee under this Indenture if received by them or it, directly to the holders of Senior Debt (pro
rata to such holders on the basis of the respective amounts of Senior Debt held by such holders, or
as otherwise required by law or a court order) or their Representative or Representatives, as their
respective interests may appear, to the extent necessary to pay all Senior Debt in full in cash, or
other payment satisfactory to the holders of Senior Debt, after giving effect to any concurrent
payment or distribution to or for the holders of Senior Debt, before any payment or distribution is
made to the Holders or to the Trustee.

     For purposes of this Article 11, the words, “cash, property or securities” shall not be deemed
to include shares of stock of the Company as reorganized or readjusted, or securities of the
Company or any other corporation provided for by a plan of reorganization or readjustment, the
payment of which is subordinated at least to the extent provided in this Article 11 with respect to
the Securities to the payment of all Senior Debt which may at the time be outstanding;
provided that (i) the Senior Debt is assumed by the new corporation, if any, resulting from
any reorganization or readjustment, and (ii) the rights of the holders of Senior Debt (other than
leases which are not assumed by the Company or the new corporation, as the case may be) are not,
without the consent of such holders, altered by such reorganization or readjustment. The
consolidation of the Company with, or the merger of the Company into, another corporation or the
liquidation or dissolution of the Company following the conveyance, transfer, sale, lease or other
disposition of its property as an entirety, or substantially as an entirety, to another corporation
upon the terms and conditions provided for in Article 6 shall not be deemed a dissolution,
winding-up, liquidation or reorganization for the purposes of this Section 11.02 if such other
corporation

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shall, as a part of such consolidation, merger, conveyance, transfer, sale, lease or other
disposition, comply with the conditions stated in Article 6.

     In the event of the acceleration of the Securities because of an Event of Default, no payment
or distribution shall be made to the Trustee or any Holders in respect of the principal of,
premium, if any, interest or Contingent Interest, if any, on the Securities by the Company
(including, but not limited to, the Redemption Price, Repurchase Price or Designated Event Purchase
Price), except payments and distributions made by the Trustee as permitted by Section 11.05, until
all Senior Debt has been paid in full in cash or other payment satisfactory to the holders of
Senior Debt or such acceleration is rescinded in accordance with the terms of this Indenture. If
payment of the Securities is accelerated because of an Event of Default, the Company shall promptly
notify holders of Senior Debt of such acceleration.

     In the event that, notwithstanding the foregoing provisions, any payment or distribution of
assets of the Company of any kind or character, whether in cash, property or securities (including,
without limitation, by way of setoff or otherwise), prohibited by the provisions of this Article
11, shall be received by the Trustee or any of the Holders before all Senior Debt is paid in full,
in cash or other payment satisfactory to the holders of Senior Debt, or provision is made for such
payment thereof in accordance with its terms in cash or other payment satisfactory to the holders
of Senior Debt, such payment or distribution shall be held in trust for the benefit of and shall be
paid over or delivered to the holders of Senior Debt or their Representative or Representatives, as
their respective interests may appear, as calculated by the Company.

     Nothing in this Section 11.02 shall apply to claims of, or payments to, the Trustee under or
pursuant to Section 8.07. This Section 11.02 shall be subject to the further provisions of Section
11.05.

     Section 11.03 Subrogation of Securities.

     After the payment in full, in cash or other payment satisfactory to the holders of Senior
Debt, of all Senior Debt (and all commitments with respect to such Senior Debt have terminated or
expired), the rights of the Holders shall be subrogated to the extent of the payments or
distributions made to the holders of such Senior Debt pursuant to the provisions of this Article 11
(equally and ratably with the holders of all indebtedness of the Company which by its express terms
is subordinated to other indebtedness of the Company to substantially the same extent as the
Securities are subordinated and is entitled to like rights of subrogation) to the rights of the
holders of Senior Debt to receive payments or distributions of cash, property or securities of the
Company applicable to the Senior Debt until the principal, premium, if any, interest or Contingent
Interest, if any, on the Securities shall be paid in full in cash or other payment satisfactory to
the holders of Senior Debt; and, for the purposes of such subrogation, no payments or distributions
to the holders of the Senior Debt of any cash, property or securities to which the Holders or the
Trustee would be entitled except for the provisions of this Article 11, and no payment over
pursuant to the provisions of this Article 11, to or for the benefit of the holders of Senior Debt
by Holders or the Trustee, shall, as between the Company, its creditors other than holders of
Senior Debt, and the Holders, be deemed to be a payment by the Company to or on account of the
Senior Debt; and no payments or distributions of cash, property or securities to or for the benefit
of the Holders pursuant to the subrogation provisions of this Article 11, which would otherwise
have been paid to the holders of Senior Debt, shall be deemed to be a payment by the Company to or
for the account of the Securities. It is understood that the provisions of this Article 11 are and
are intended solely for the purposes of defining the relative rights of the Holders, on the one
hand, and the holders of the Senior Debt, on the other hand.

     Nothing contained in this Article 11 or elsewhere in this Indenture or in the Securities is
intended to or shall impair, as among the Company, its creditors other than the holders of Senior
Debt, and the Holders, the obligation of the Company, which is absolute and unconditional, to pay
to the Holders the

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principal of (and premium, if any), interest or Contingent Interest, if any, on the Securities
as and when the same shall become due and payable in accordance with their terms, or is intended to
or shall affect the relative rights of the Holders and creditors of the Company other than the
holders of the Senior Debt, nor shall anything herein or therein prevent the Trustee or the Holders
from exercising all remedies otherwise permitted by applicable law during the continuance of an
Event of Default under this Indenture, subject to the rights, if any, under this Article 11 of the
holders of Senior Debt in respect of cash, property or securities of the Company received upon the
exercise of any such remedy.

     Upon any payment or distribution of assets of the Company referred to in this Article 11, the
Trustee, subject to the provisions of Section 8.01, and the Holders shall be entitled to
conclusively rely upon any order or decree made by any court of competent jurisdiction in which
such bankruptcy, dissolution, winding-up, liquidation or reorganization proceedings are pending, or
a certificate of the receiver, trustee in bankruptcy, liquidating trustee, agent or other Person
making such payment or distribution, delivered to the Trustee or to the Holders, for the purpose of
ascertaining the Persons entitled to participate in such distribution, the holders of the Senior
Debt and other indebtedness of the Company, the amount thereof or payable thereon and all other
facts pertinent thereto or to this Article 11.

     Section 11.04 Authorization to Effect Subordination.

     Each Holder by accepting a Security authorizes and directs the Trustee on such Holder’s behalf
to take such action as may be necessary or appropriate to effectuate the subordination as provided
in this Article 11 and as may be requested in writing and as prepared by the holders of Senior Debt
at their expense, and each Holder appoints the Trustee to act as such Holder’s attorney-in-fact for
any and all such purposes. If the Trustee does not file a proper proof of claim or proof of debt
in the form required in any proceeding referred to in Section 11.03 hereof at least 30 days before
the expiration of the time to file such claim, the holders of any Senior Debt or their
Representatives are hereby authorized to file an appropriate claim for and on behalf of the Holders
and each Holder hereby appoints the holders of Senior Debt or their respective Representatives to
act as its attorney-in-fact for any and all such purposes.

     Section 11.05 Notice to Trustee.

     The Company shall give prompt written notice in the form of an Officers’ Certificate to a
Responsible Officer of the Trustee and to any Paying Agent of any fact known to the Company which
would prohibit the making of any payment of monies to or by the Trustee or any Paying Agent in
respect of the Securities pursuant to the provisions of this Article 11. Notwithstanding the
provisions of this Article 11 or any other provision of this Indenture, the Trustee shall not be
charged with knowledge of the existence of any facts which would prohibit the making of any payment
of monies to or by the Trustee in respect of the Securities pursuant to the provisions of this
Article 11, unless and until a Responsible Officer of the Trustee shall have received written
notice thereof at the office of the Trustee specified in Section 14.02 hereof from the Company (in
the form of an Officers’ Certificate) or a Representative or a holder or holders of Senior Debt;
and before the receipt of any such written notice, the Trustee, subject to the provisions of
Section 8.01, shall be entitled in all respects to assume that no such facts exist;
provided that with respect to any such monies that may become payable for any purpose
(including, without limitation, the payment of the principal of, or premium, if any, or interest on
any Security) unless the Trustee shall have received, on a date not less than one Business Day
immediately prior to the date upon which by the terms hereof such monies shall become payable, the
notice provided for in this Section 11.05, then, anything in the first two paragraphs of Section
11.02 contained to the contrary notwithstanding, the Trustee shall have full power and authority to
receive such monies and to apply the same to the purpose for which they were received, and shall
not be affected by any notice to the contrary which may be received by it on or after such prior
date; provided further, that if the Trustee shall receive any such notice on the
date upon which by the terms hereof such monies shall become payable, the

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Trustee may, in its reasonable discretion, waive the time for notice provided in the foregoing
proviso. Nothing shall prevent any payment by the Trustee to the holders of monies deposited with
it pursuant to Article 9, and any such payment shall not be subject to the provisions of Article
11; provided that, at the time of any such deposit, such deposit and payment were permitted
under this Article 11 without giving effect to the first clause of this sentence.

     The Trustee, subject to the provisions of Section 8.01, shall be entitled to conclusively rely
on the delivery to it of a written notice by a Representative or a Person representing himself to
be a holder of Senior Debt to establish that such notice has been given by a Representative or a
holder of Senior Debt. In the event that the Trustee determines in good faith that further
evidence is required with respect to the right of any Person as a holder of Senior Debt to
participate in any payment or distribution pursuant to this Article 11, the Trustee may request
such Person to furnish evidence to the reasonable satisfaction of the Trustee as to the amount of
Senior Debt held by such Person, the extent to which such Person is entitled to participate in such
payment or distribution and any other facts pertinent to the rights of such Person under this
Article 11, and if such evidence is not furnished the Trustee may defer any payment to such Person
pending judicial determination as to the right of such Person to receive such payment.

     Section 11.06 Trustee’s Relation to Senior Debt.

     The Trustee in its individual capacity shall be entitled to all the rights set forth in this
Article 11 in respect of any Senior Debt at any time held by it, to the same extent as any other
holder of Senior Debt, and nothing in Section 8.11 or elsewhere in this Indenture shall deprive the
Trustee of any of its rights as such holder. Nothing in this Article 11 shall apply to the claims
of, or payment to, the Trustee under or pursuant to Section 8.07.

     With respect to the holders of Senior Debt, the Trustee undertakes to perform or to observe
only such of its covenants and obligations as are specifically set forth in this Article 11, and no
implied covenants or obligations with respect to the holders of Senior Debt shall be read into this
Indenture against the Trustee. The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Debt and, subject to the provisions of Section 8.01, the Trustee shall not be
liable to any holder of Senior Debt if it shall pay over or deliver to Holders, the Company or any
other Person money or assets to which any holder of Senior Debt shall be entitled by virtue of this
Article 11 or otherwise.

     Section 11.07 No Impairment of Subordination.

     No right of any present or future holder of any Senior Debt to enforce subordination as herein
provided shall at any time in any way be prejudiced or impaired by any act or failure to act on the
part of the Company or by any act or failure to act, in good faith, by any such holder, or by any
noncompliance by the Company with the terms, provisions and covenants of this Indenture, regardless
of any knowledge thereof which any such holder may have or otherwise be charged with.

     Section 11.08 Certain Conversions Deemed Payment.

     For the purposes of this Article 11 only, (a) the issuance and delivery of any Junior
Securities upon conversion of Securities in accordance with Article 4 shall not be deemed to
constitute a payment or distribution on account of the principal of (or premium, if any), interest
or Contingent Interest, if any, on the Securities or on account of the purchase or other
acquisition of Securities, and (b) the payment, issuance or delivery of cash (except in
satisfaction of fractional shares), securities (other than Junior Securities) or other property
upon conversion of a Security shall be deemed to constitute payment on account of the principal of
such Security, the payment, issuance and delivery of such cash being made subject to the
subordination provisions of this Article 11. For the purposes of this Section 11.08, the term

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“Junior Securities” means (1) shares of any stock of any class of the Company or (2)
securities of the Company which are subordinated in right of payment to all Senior Debt which may
be outstanding at the time of issuance or delivery of such securities to substantially the same
extent as, or to a greater extent than, the Securities are so subordinated as provided in this
Article 11 and which otherwise have terms no less disadvantageous to Senior Debt herein. Nothing
contained in this Article 11 or elsewhere in this Indenture or in the Securities is intended to or
shall impair, as among the Company, its creditors other than holders of Senior Debt and the
Holders, the right, which is absolute and unconditional, of the Holders to convert such Securities
in accordance with Article 4.

     Section 11.09 Article Applicable to Paying Agents.

     If at any time any Paying Agent other than the Trustee shall have been appointed by the
Company and be then acting hereunder, the term “Trustee” as used in this Article 11 shall (unless
the context otherwise requires) be construed as extending to and including such Paying Agent within
its meaning as fully for all intents and purposes as if such Paying Agent were named in this
Article 11 in addition to or in place of the Trustee; provided, however, that the
first paragraph of Section 11.05 shall not apply to the Company or any Affiliate of the Company if
it or such Affiliate acts as Paying Agent.

     Section 11.10 Senior Debt Entitled to Rely.

     The holders of Senior Debt shall have the right to rely upon this Article 11, and no amendment
or modification of the provisions of this Article 11 that adversely affect the rights and interests
of such holders shall be effective as to such holders unless such holders shall have agreed in
writing thereto. Each Holder by accepting a Security acknowledges and agrees that the provisions
of Article 11 are, and are intended to be, an inducement and consideration to each holder of Senior
Debt (whether such Senior Debt was acquired or created before or after the issuance of the
Securities) to acquire and hold, or to continue to hold, such Senior Debt, and such holder of
Senior Debt shall be deemed conclusively to have relied on the provisions of this Article 11 in
acquiring and continuing to hold such Senior Debt.

     Section 11.11 Reinstatement.

     To the extent the payment of or distribution in respect of any Senior Debt (whether by or on
behalf of the Company as proceeds of security or enforcement of any right of setoff or otherwise)
is declared to be fraudulent or preferential, set aside or required to be paid to any receiver,
trustee in bankruptcy, liquidating trustee, agent or similar Person under any bankruptcy,
insolvency, receivership, fraudulent conveyance or similar law, then if such payment or
distribution is recovered by, or paid over to, such receiver, trustee in bankruptcy, liquidating
trustee, agent or similar Person, the Senior Debt or part thereof originally intended to be
satisfied shall be deemed to be reinstated and outstanding as if such payment had not occurred.

     Section 11.12 Actions by Holders of Senior Debt.

     The holders of the Senior Debt may, at any time and from time to time, without the consent of
or notice to the Trustee or the Holders, without incurring responsibility to the Holders and
without impairing or releasing the subordination provided in this Indenture or the obligations of
the Holders hereunder to the holders of the Senior Debt, do any one or more of the following:

     (a) change the manner, place or terms of payment or extend the time of
payment of, or renew or alter, the Senior Debt or any instrument evidencing the same or any
agreement under which any Senior Debt is outstanding or secured;

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     (b) sell, exchange, release or otherwise deal with any property pledged,
mortgaged or otherwise secured;

     (c) release any Person liable in any manner for the collection of Senior
Debt;

     (d) exercise or refrain from exercising any rights against the Company or any
other Person; and

     (e) take any other action in the reasonable business judgment of the holders
of Senior Debt.

     Section 11.13 Subordination of Notes Guarantees.

     The Notes Guarantee of each Notes Guarantor is subordinated to the Senior Debt to the same
extent and in the same manner as the Securities are subordinated to the Senior Debt.

ARTICLE 12

GUARANTEES

     Section 12.01 Notes Guarantee.

     (a) Subject to the provisions of this Article 12, each Notes Guarantor, jointly and
severally, hereby fully and unconditionally guarantees on a senior subordinated, unsecured basis to
each holder of a Security authenticated and delivered by the Trustee and to the Trustee,
irrespective of the validity or enforceability of this Indenture, the Securities, or the
obligations of the Company hereunder or thereunder:

     (1) the due and punctual payment of the principal of (and premium, if any)
and interest (including Contingent Interest, if any) on, the Securities, whether at the
Final Maturity Date or on an Interest Payment Date, by acceleration, call for redemption,
repurchase, or otherwise (subject to any applicable grace period);

     (2) the due and punctual payment of interest on the overdue principal and
premium, if any, of, and interest (including Contingent Interest, if any) on, the
Securities, if lawful;

     (3) the due and punctual payment and performance (subject to any applicable
grace period) of all other obligations of the Company under this Indenture and the
Securities; and

     (4) in case of any extension of time of payment or renewal of any Securities
or any of such other obligations under this Indenture or under the Securities, the due and
punctual payment or performance thereof (subject to any applicable grace period) in
accordance with the terms of the extension or renewal, whether at the Final Maturity Date,
by acceleration, call for redemption, repurchase, or otherwise.

     (b) Failing payment when due by the Company of any amount so guaranteed for whatever
reason, the Notes Guarantors shall be jointly and severally obligated to pay the same immediately.
An Event of Default under this Indenture or the Securities shall constitute an event of default
under the Notes Guarantees, and shall entitle the Holders or the Trustee to accelerate the
obligations of the Notes Guarantors hereunder in the same manner and to the same extent as the
obligations of the Company.

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     (c) Each Notes Guarantor hereby agrees that (1) its obligations hereunder shall be
unconditional, irrespective of the validity, regularity or enforceability of the Securities, this
Indenture, or the obligations of the Company hereunder or thereunder, the absence of any action to
enforce the same, whether or not a Notes Guarantee is affixed to any particular Security, any
waiver or consent by any Holder with respect to any provisions hereof or thereof, any amendment of
this Indenture or the Securities, the recovery of any judgment against the Company or any its
Subsidiaries, any action to enforce the same, or any other circumstance that might otherwise
constitute a legal or equitable discharge or defense of a guarantor (other than payment in full of
the Securities) and (2) subject to Section 12.07, each Notes Guarantee will not be discharged
except by complete performance of the obligations of the Company under the Securities and this
Indenture.

     (d) The Notes Guarantee shall remain in full force and effect and continue to be
effective should any petition be filed by or against the Company for liquidation or reorganization,
should the Company become insolvent or make an assignment for the benefit of creditors or should a
receiver or trustee be appointed for all or any significant part of the Company’s assets, and
shall, to the fullest extent permitted by law, continue to be effective or be reinstated, as the
case may be, if at any time payment and performance of the Securities are pursuant to applicable
law, rescinded or reduced in amount, or must otherwise be restored or returned by any obligee on
the Securities, whether as a “voidable preference,” “fraudulent transfer” or otherwise, all as
though such payment or performance had not been made. In the event that any payment, or any part
thereof, is rescinded, reduced, restored or returned, the Securities shall, to the fullest extent
permitted by law, be reinstated and deemed reduced only by such amount paid and not so rescinded,
reduced, restored or returned.

     (e) Each Notes Guarantor hereby agrees that it shall not be entitled to and
irrevocably waives diligence, presentment, demand of payment, filing of claim with a court in the
event of insolvency or bankruptcy of the Company, any Notes Guarantor, any other Subsidiary of the
Company or any other obligor under the Securities, any right to require a proceeding first against
the Company, any Notes Guarantor, any other Subsidiary of the Company or any other obligor under
this Indenture, or the Securities and any right, protest, notice and all demands whatsoever.

     (f) If any Holder or the Trustee is required by any court or otherwise to return to
the Company, any Notes Guarantor, any other Subsidiary of the Company or any other obligor under
this Indenture, or the Securities, or any trustee, liquidator or other similar official, any amount
paid by the Company, any Notes Guarantor, any other Subsidiary of the Company or any other obligor
under this Indenture, or the Securities to the Trustee or such Holder, the Notes Guarantees, to the
extent theretofore discharged, shall be reinstated in full force and effect.

     (g) Each Notes Guarantor agrees that, as between the Notes Guarantors, on the one
hand, and the Holders and the Trustee, on the other hand, (i) the maturity of the obligations of
the Company guaranteed hereby may be accelerated as provided in Article 7 for the purposes of the
Notes Guarantees, notwithstanding any stay, injunction or other prohibition preventing such
acceleration as to the Company of the obligations guaranteed hereby, and (ii) in the event of any
declaration of acceleration of those obligations as provided in Article 7, those obligations
(regardless of whether due and payable) will forthwith become due and payable by each of the Notes
Guarantors for the purpose of the Notes Guarantees.

     (h) No stockholder, officer, director, employee or incorporator, past, present or
future, of any Notes Guarantor, as such, shall have any personal liability under this Notes
Guarantee by reason of his, her or its status as such stockholder, officer, director, employee or
incorporator.

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     Section 12.02 Execution and Delivery of the Notes Guarantees.

     (a) To evidence the Notes Guarantees set forth in Section 12.01, the Company and
each Notes Guarantor hereby agrees that:

     (1) a notation of the Notes Guarantees substantially as set forth on Exhibit
B hereto shall be endorsed on each Security authenticated and delivered by the Trustee; and

     (2) such endorsement shall be executed on behalf of each Notes Guarantor by
any one officer of such Notes Guarantor.

     (b) Each Notes Guarantor hereby agrees that its Notes Guarantee set forth in Section
12.01 shall remain in full force and effect notwithstanding any failure to endorse on each Security
a notation of such Notes Guarantee.

     (c) If an Officer whose signature is on this Indenture no longer holds that office
at the time the Trustee authenticates the Securities on which a Notes Guarantee is endorsed, the
Notes Guarantee shall nevertheless be valid.

     (d) The delivery of any Security by the Trustee, after the authentication thereof
hereunder, shall constitute due delivery of the Notes Guarantees set forth in this Indenture on
behalf of the Notes Guarantors.

     (e) Such signatures upon this Indenture may be by manual or facsimile signature of
such officers and may be imprinted or otherwise reproduced on this Indenture.

     Section 12.03 Limitation on Notes Guarantors’ Liability.

     Each Notes Guarantor and by its acceptance hereof each Holder hereby confirms that it is the
intention of all such parties that the guarantee by such Notes Guarantor pursuant to its Notes
Guarantee not constitute a fraudulent transfer or conveyance for purposes of any federal or state
law. To effectuate the foregoing intention, the Holders and the Notes Guarantors hereby
irrevocably agree that the obligations of each Notes Guarantor under its Notes Guarantee shall be
limited to the maximum amount as will, after giving effect to all other contingent and fixed
liabilities of such Notes Guarantor and to any collections from or payments made by or on behalf of
any other Notes Guarantor in respect of the obligations of such other Notes Guarantor under its
Notes Guarantee, result in the obligations of such Notes Guarantor under its Notes Guarantee not
constituting a fraudulent conveyance or fraudulent transfer under federal or state law and not
rendering a Notes Guarantor insolvent.

     Section 12.04 Rights under the Notes Guarantees.

     (a) Until payment in full of the Securities, no payment by any Notes Guarantor
pursuant to the provisions shall give rise to any claim of the Notes Guarantors against the Trustee
or any Holder.

     (b) Each Notes Guarantor waives notice of the issuance, sale and purchase of the
Securities and notice from the Trustee or the Holders from time to time of any of the Securities of
their acceptance and reliance on its Guaranty.

     (c) No set-off, counterclaim, reduction or diminution of any obligation or any
defense of any kind or nature (other than performance by the Notes Guarantors of their obligations
hereunder) that any

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Notes Guarantor may have or assert against the Trustee or any Holder shall be available
hereunder to such Notes Guarantor.

     (d) Each Notes Guarantor shall pay all reasonable costs, expenses and fees,
including all reasonable attorneys’ fees, that may be incurred by the Trustee in enforcing or
attempting to enforce the Notes Guarantees or protecting the rights of the Trustee or the Holder,
if any, in accordance with this Indenture.

     Section 12.05 Primary Obligations.

     The obligations of each Notes Guarantor hereunder shall constitute a guaranty of payment and
not of collection. Each Notes Guarantor agrees that it is directly liable to each Holder
hereunder, that the obligations of each Notes Guarantor hereunder are independent of the
obligations of the Company or any other Notes Guarantor, and that a separate action may be brought
against each Notes Guarantor, whether such action is brought against the Company or any other Notes
Guarantor or whether the Company or any other Notes Guarantor is joined in such action. Each Notes
Guarantor agrees that its liability hereunder shall be immediate and shall not be contingent upon
the exercise or enforcement by the Trustee or the Holders of whatever remedies they may have
against the Company or any other Notes Guarantor or the enforcement of any lien or realization upon
any security the Trustee may at any time possess. Each Notes Guarantor agrees that any release
that may be given by the Trustee or the Holders to the Company or any other Notes Guarantor shall
not release such Notes Guarantor.

     Section 12.06 Notes Guarantee by Future Significant Subsidiaries.

     (a) The Company shall cause each Person (subject to exceptions in the case of
TherMatrx, Inc., a Delaware corporation (“TherMatrx”), American Medical Systems Gynecology, Inc., a
California corporation (“AMSG”) and any entity that becomes a Domestic Subsidiary as a result of an
acquisition by the Company or one if its Subsidiaries) that becomes a Domestic Subsidiary having
total assets with a book value of greater than $5,000,000 to execute and deliver to the Trustee a
supplemental indenture hereto providing for a Notes Guarantee on an unsecured basis and
subordinated pursuant to the terms of this Indenture and execute such Notes Guarantee substantially
in the form attached as Exhibit B hereto. In the event an entity becomes a Domestic Subsidiary as
a result of an acquisition after the date hereof (other than Laserscope and its Subsidiaries), the
Company may defer adding it as a Notes Guarantor for up to 90 days after it first becomes a
Domestic Subsidiary (a “Deferral Period”) if the Company made a good faith determination that by
the end of such Deferral Period the book value of the total assets of such Domestic Subsidiary will
be equal to or less than $5,000,000 as a result of planned transfers of its assets to one or more
Notes Guarantor. The Company shall cause TherMatrx and AMSG to execute and deliver to the Trustee
a supplemental indenture providing for a Notes Guarantee on an unsecured basis and subordinated
pursuant to the terms of this Indenture and execute such Notes Guarantee substantially in the form
attached as Exhibit B hereto no later than July 1, 2007, in each case, in the event that such
Subsidiary continues to have assets with a book value in excess of $5,000,000 (excluding, for these
purposes, any goodwill existing as of the date hereof). Until such time, TherMatrx and AMSG will
not be required to be added as Notes Guarantors unless the Company or its Subsidiaries transfer
substantial additional assets to TherMatrx or AMSG (in which case, the Company shall cause
TherMatrx and AMSG to execute and deliver to the Trustee a supplemental indenture providing for a
Notes Guarantee on an unsecured basis and subordinated pursuant to the terms of this Indenture and
execute such Notes Guarantee substantially in the form attached as Exhibit B hereto at the time of
such transfers).

     Notwithstanding the foregoing, at no time shall all of the Company’s Domestic Subsidiaries
that are not Notes Guarantors have an aggregate book value of total assets that exceeds 10% of the
Net Tangible Assets of the Company (exclusive of foreign Subsidiaries) and all of its Domestic
Subsidiaries

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(exclusive of their foreign Subsidiaries). For purposes of the above calculation, aggregate
book value of the assets of a non-guarantor subsidiary shall be based on the balance sheets of such
non-guarantor used in the preparation of the most recent consolidated financial statement of the
Company required to be delivered to the Trustee or, if sooner, filed with the SEC;
provided, that, for purposes of any such calculation prior to July 1, 2007, the assets of
TherMatrx and AMSG shall be excluded, and, for purposes of any such calculation on or after July 1,
2007, the assets of TherMatrx and AMSG that constitute goodwill shall be excluded, in each case,
notwithstanding the fact that such Subsidiaries are non-guarantors as of the date of such
calculation; provided, further, that the assets of Domestic Subsidiaries that are
subject to a Deferral Period shall be excluded for purposes of any such calculation made during the
applicable Deferral Period up to a maximum not to exceed $75,000,000 in the aggregate for all such
excluded assets at any given time.

     (b) The Company shall deliver to the Trustee an Opinion of Counsel, in form
reasonably satisfactory to the Trustee, to the effect that (A) such supplemental indenture has been
duly authorized, executed and delivered by such Domestic Subsidiary and (B) such supplemental
indenture constitutes the legal, valid, binding and enforceable obligations of such Domestic
Subsidiary, subject to customary exceptions and carve-outs applicable to other similar opinions.

     (c) The fact that any Security may fail to have endorsed thereon a Notes Guarantee
executed by a Notes Guarantor shall not affect the validity or enforceability of such Notes
Guarantee against such Notes Guarantor.

     (d) Upon close of the Laserscope Acquisition, Laserscope will promptly execute and
deliver a supplemental indenture hereto providing for a Notes Guarantee on an unsecured basis and
subordinated pursuant to the terms of this Indenture and execute such Notes Guarantee substantially
in the form attached as Exhibit B hereto.

     Section 12.07 Release of Notes Guarantors.

     (a) So long as no Default or Event of Default shall have occurred and be continuing
under this Indenture or any Notes Guarantee and no such Default or Event of Default would result
from the release, a Notes Guarantor shall be released from all of its obligations under its Notes
Guarantee, this Indenture and the Securities:

     (1) in connection with any sale or other disposition of all or substantially
all of the assets or all of the Capital Stock of that Notes Guarantor (including by way of
merger or consolidation) to a Person that is not (either before or after giving effect to
such transaction) the Company or a Domestic Subsidiary of the Company; or

     (2) upon the delivery by the Company to the Trustees of an Officers’
Certificate certifying that the book value of the total assets of such Notes Guarantor is
equal to or less than $5,000,000 provided, however, that at no time shall
all of the Company’s Domestic Subsidiaries that are not Notes Guarantors have an aggregate
book value of total assets that exceeds 10% of the Net Tangible Assets of the Company
(exclusive of foreign Subsidiaries) and all of its Domestic Subsidiaries (exclusive of their
foreign Subsidiaries). For purposes of the above calculation, aggregate book value of the
assets of a non-guarantor subsidiary shall be based on the balance sheets of such
non-guarantor used in the preparation of the most recent consolidated financial statement of
the Company required to be delivered to the Trustee or, if sooner, filed with the SEC;
provided, that, for purposes of any such calculation prior to July 1, 2007, the
assets of TherMatrx and AMSG shall be excluded, and, for purposes of any such calculation on
or after
July 1, 2007, the assets of TherMatrx and AMSG that constitute goodwill shall be
excluded, in

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each case, notwithstanding the fact that such Subsidiaries are non-guarantors
as of the date of such calculation; provided, further, that the assets of
Domestic Subsidiaries that are subject to a Deferral Period shall be excluded for purposes
of any such calculation made during the applicable Deferral Period up to a maximum not to
exceed $75,000,000 in the aggregate for all such excluded assets at any given time;

and in each case the Company has delivered to the Trustee an Officers’ Certificate, each stating
that all conditions precedent herein provided for relating to such transactions have been complied
with and that such release is authorized and permitted hereunder.

     (b) If all of the conditions to release contained in this Section 12.07 have been
satisfied, the Trustee shall execute any documents reasonably requested by the Company or any Notes
Guarantor in order to evidence the release of such Notes Guarantor from its obligations under its
Notes Guarantee under this Article 12.

ARTICLE 13

CONTINGENT INTEREST

     Section 13.01 Contingent Interest.

     (a) The Company shall pay Contingent Interest with respect to the Securities for any
Contingent Interest Period if the average Trading Price of Securities for the five consecutive
Trading Days immediately before the last Trading Day before the relevant Contingent Interest Period
equals or exceeds 120% of the principal amount of such Securities.

     (b) The amount of Contingent Interest payable per $1,000 principal amount of Securities in
respect of any Contingent Interest Period shall equal 0.25% per annum calculated on the average
Trading Price of $1,000 principal amount of Securities during the relevant five Trading Day period
used to determine whether Contingent Interest must be paid.

     (c) The Company shall be responsible for calculating the amounts of Contingent Interest, if
any, accrued on the Securities. The Company shall make any such calculations using the Trading
Price provided by the Trustee. The Trustee shall be entitled in its sole discretion to consult
with the Company and to request the assistance of the Company in connection with the Trustee’s
duties pursuant to this Article 13.

     Section 13.02 Payment of Contingent Interest.

     Payments of Contingent Interest shall be made on the Interest Payment Date for the applicable
interest period and in the same manner, at the same time, and subject to the same restrictions,
including those restrictions in respect of accrued and unpaid interest on any Securities that are
submitted for conversion, as payments of interest.

     Section 13.03 Contingent Interest Notification.

     By the first Business Day of a Contingent Interest Period for which Contingent Interest shall
be payable, the Company shall disseminate a press release containing this information or publish
the information on its website or through such other public medium as it may use at that time.

73

 

ARTICLE 14

MISCELLANEOUS

     Section 14.01 Trust Indenture Act Controls.

     If any provision of this Indenture limits, qualifies or conflicts with the duties imposed by
any of Sections 310 to 317, inclusive, of the TIA through operation of Section 318(c) thereof, such
imposed duties shall control.

     Section 14.02 Notices.

     Any demand, authorization notice, request, consent or communication shall be given in writing
and delivered in person or mailed by first-class mail, postage prepaid, addressed as follows or
transmitted by facsimile transmission (confirmed by delivery in person or mail by first-class mail,
postage prepaid, or by guaranteed overnight courier) to the following facsimile numbers:

If to the Company or a Notes Guarantor, to:

American Medical Systems Holdings, Inc.

10700 Bren Road West

Minnetonka, Minnesota 55343

Attention: Carmen Diersen, Chief Financial Officer

Tel: (952) 930-6000

Fax: (952) 930-6373

with a copy to:

Oppenheimer Wolff & Donnelly LLP

45 South Seventh Street

Plaza VII, Suite 3300

Minneapolis, Minnesota 55442

Attention: Thomas A. Letscher, Esq.

Tel: (612) 607-7000

Fax: (612) 607-7100

if to the Trustee, to:

U.S. Bank National Association

60 Livingston Avenue

St. Paul, Minnesota 55107

Attention: Raymond Haverstock, Corporate Trust Services (American Medical

Systems Holdings, Inc. 31/4% Convertible Senior Subordinated Notes due 2036)

Tel: (651) 495-3909

Fax: (651) 495-8097

     Such notices or communications shall be effective when received.

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

74

 

     Any notice or communication mailed to a Holder of a Security shall be mailed by first-class
mail or delivered by an overnight delivery service to it at its address shown on the register kept
by the Primary Registrar.

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

     If the Company mails any notice to a Holder of a Security, it shall mail a copy to the Trustee
and each Registrar, Paying Agent and Conversion Agent.

     Section 14.03 Communications By Holders with Other Holder.

     Holders of Securities may communicate pursuant to TIA Section 312(b) with other Holders of
Securities with respect to their rights under this Indenture or the Securities. The Company, the
Notes Guarantors, the Trustee, the Registrar and any other person shall have the protection of TIA
Section 312(c).

     Section 14.04 Certificate and Opinion as to Conditions Precedent.

     (a) Upon any request or application by the Company or a Notes Guarantor to the
Trustee to take any action under this Indenture, the Company or the Notes Guarantor, as the case
may be, shall furnish to the Trustee at the request of the Trustee:

     (1) an Officers’ Certificate stating that, in the opinion of the signers, all
conditions precedent (including any covenants, compliance with which constitutes a condition
precedent), if any, provided for in this Indenture relating to the proposed action have been
complied with; and

     (2) an Opinion of Counsel stating that, in the opinion of such counsel, all
such conditions precedent (including any covenants, compliance with which constitutes a
condition precedent) have been complied with.

     (b) Each Officers’ Certificate and Opinion of Counsel with respect to compliance
with a condition or covenant provided for in this Indenture shall include:

     (1) a statement that the person making such certificate or opinion has read
such covenant or condition;

     (2) a brief statement as to the nature and scope of the examination or
investigation upon which the statements or opinions contained in such certificate or opinion
are based;

     (3) a statement that, in the opinion of such person, he or she has made such
examination or investigation as is necessary to enable him or her 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;

provided, however, that with respect to matters of fact an Opinion of Counsel may
rely on an Officers’ Certificate or certificates of public officials.

75

 

     Section 14.05 Record Date for Vote or Consent of Holders of Securities.

     The Company (or, in the event deposits have been made pursuant to Section 9.01, the Trustee)
may set a record date for purposes of determining the identity of Holders entitled to vote or
consent to any action by vote or consent authorized or permitted under this Indenture, which record
date shall not be more than 30 days prior to the date of the commencement of solicitation of such
action. Notwithstanding the provisions of Section 10.04, if a record date is fixed, those persons
who were Holders of Securities at the close of business on such record date (or their duly
designated proxies), and only those persons, shall be entitled to take such action by vote or
consent or to revoke any vote or consent previously given, whether or not such persons continue to
be Holders after such record date.

     Section 14.06 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 14.07 Legal Holidays.

     A “Legal Holiday” is a Saturday, Sunday or a day on which state or federally chartered banking
institutions in New York, New York are authorized or obligated to close. If a payment date is a
Legal Holiday, payment shall be made on the next succeeding day that is not a Legal Holiday, and no
interest shall accrue for the intervening period. If a Regular Record Date is a Legal Holiday, the
record date shall not be affected.

     Section 14.08 Governing Law.

     This Indenture and the Securities shall be governed by, and construed in accordance with, the
laws of the State of New York.

     Section 14.09 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 14.10 No Recourse Against Others.

     All liability described in paragraph 15 of the Securities of any director, officer, employee
or stockholder, as such, of the Company hereby is waived and released by each of the Holders.

     Section 14.11 No Security Interest Created.

     Nothing in this Indenture or in the Securities, express or implied, shall be construed to
constitute a security interest under the Uniform Commercial Code or similar legislation, now in
effect or hereafter enacted and made effective, in any jurisdiction.

     Section 14.12 Successors.

     All agreements of the Company in this Indenture and the Securities shall bind its successor.
All agreements of the Trustee in this Indenture shall bind its successor.

76

 

     Section 14.13 Multiple Counterparts.

     The parties may sign multiple counterparts of this Indenture. Each signed counterpart shall
be deemed an original, but all of them together represent the same agreement.

     Section 14.14 Separability.

     If any provisions in this Indenture or in the Securities shall be invalid, illegal or
unenforceable, the validity, legality and enforceability of the remaining provisions shall not in
any way be affected or impaired thereby.

     Section 14.15 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.

[SIGNATURE PAGE FOLLOWS]

77

 

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

	 	 	 	 	 
	 	 	AMERICAN MEDICAL SYSTEMS HOLDINGS, INC.,
	 	 	  as the Company
	 
	 	 	 	 
	 

	 	By:	 	/s/ Martin J. Emerson
	 

	 	 	 	 
	 

	 	 	 	Name:  Martin J. Emerson
	 

	 	 	 	Title:    Chief
Executive Officer and President
	 
	 	 	 	 
	 	 	AMERICAN MEDICAL SYSTEMS, INC.,
	 	 	  as Notes Guarantor
	 
	 	 	 	 
	 

	 	By	 	/s/ Martin J. Emerson 
	 

	 	 	 	 
	 

	 	 	 	Name:  Martin J. Emerson
	 

	 	 	 	Title:    Chief
Executive Officer and President
	 
	 	 	 	 
	 	 	AMS SALES CORPORATION,
	 	 	  as Notes Guarantor
	 
	 	 	 	 
	 

	 	By	 	/s/ Martin J. Emerson 
	 

	 	 	 	 
	 

	 	 	 	Name:  Martin J. Emerson
	 

	 	 	 	Title:    Chief
Executive Officer and President
	 
	 	 	 	 
	 	 	AMS RESEARCH CORPORATION,
	 	 	  as Notes Guarantor
	 
	 	 	 	 
	 

	 	By	 	/s/ Martin J. Emerson 
	 

	 	 	 	 
	 

	 	 	 	Name:  Martin J. Emerson
	 

	 	 	 	Title:    Chief
Executive Officer and President
	 
	 	 	 	 
	 	 	U.S. BANK NATIONAL ASSOCIATION,
	 	 	  as Trustee
	 
	 	 	 	 
	 

	 	By:	 	/s/ Raymond S. Haverstock
	 

	 	 	 	 
	 

	 	 	 	Name:  Raymond S.
Haverstock
	 

	 	 	 	Title:    Vice
President

 

 

EXHIBIT A

[FORM OF FACE OF SECURITY]

     THIS SECURITY HAS BEEN ISSUED WITH ORIGINAL ISSUE DISCOUNT FOR PURPOSES OF SECTIONS 1272,
1273, AND 1275 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED. IN ADDITION, THIS SECURITY IS
SUBJECT TO THE RULES FOR DEBT INSTRUMENTS WITH CONTINGENT PAYMENTS UNDER TREASURY REGULATION
SECTION 1.1275-4(b).

     THE COMPANY AGREES, AND BY PURCHASING A BENEFICIAL OWNERSHIP INTEREST IN THE SECURITIES EACH
HOLDER OF SECURITIES WILL BE DEEMED TO HAVE AGREED, FOR UNITED STATES FEDERAL INCOME TAX PURPOSES
(1) TO TREAT THE SECURITIES AS INDEBTEDNESS THAT IS SUBJECT TO TREASURY REGULATION SECTION 1.1275-4
(THE “CONTINGENT PAYMENT REGULATIONS”) AND, FOR PURPOSES OF THE CONTINGENT PAYMENT REGULATIONS, TO
TREAT THE CASH AND FAIR MARKET VALUE OF ANY STOCK BENEFICIALLY RECEIVED BY A BENEFICIAL HOLDER UPON
ANY CONVERSION OF THE SECURITIES AS A CONTINGENT PAYMENT, (2) TO ACCRUE INTEREST WITH RESPECT TO
THE SECURITIES AS ORIGINAL ISSUE DISCOUNT ON A CONSTANT YIELD BASIS USING THE COMPARABLE YIELD OF
31/4% PER ANNUM COMPOUNDED SEMI-ANNUALLY, AND (3) TO BE BOUND BY THE COMPANY’S DETERMINATION OF THE
“COMPARABLE YIELD” AND “PROJECTED PAYMENT SCHEDULE,” WITHIN THE MEANING OF THE CONTINGENT PAYMENT
REGULATIONS, WITH RESPECT TO THE SECURITIES. THE COMPANY AGREES TO PROVIDE PROMPTLY TO HOLDERS OF
SECURITIES, UPON WRITTEN REQUEST, THE AMOUNT OF ORIGINAL ISSUE DISCOUNT, ISSUE PRICE, ISSUE DATE,
YIELD TO MATURITY, COMPARABLE YIELD AND PROJECTED PAYMENT SCHEDULE. ANY SUCH WRITTEN REQUEST
SHOULD BE SENT TO THE COMPANY AT THE FOLLOWING ADDRESS: 10700 BREN ROAD WEST, MINNETONKA, MINNESOTA
55343, ATTENTION: CARMEN DIERSEN, CHIEF FINANCIAL OFFICER.

     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

A-1

 

ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR
DEPOSITARY.1

     THE OBLIGATIONS EVIDENCED HEREBY ARE SUBORDINATE IN THE MANNER AND TO THE EXTENT SET FORTH IN
THAT CERTAIN INDENTURE DATED AS OF EVEN DATE HEREWITH, BY AND AMONG AMERICAN MEDICAL SYSTEMS
HOLDINGS, INC., AS ISSUER, THE NOTES GUARANTORS PARTY THERETO, AS GUARANTORS, AND U.S. BANK
NATIONAL ASSOCIATION, AS TRUSTEE, AND EACH HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF, SHALL
BE BOUND BY THE PROVISIONS OF THE INDENTURE, INCLUDING WITHOUT LIMITATION, THE SUBORDINATION TERMS
THEREIN.

 

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

A-2

 

AMERICAN MEDICAL SYSTEMS HOLDINGS, INC.

31/4% Convertible Senior Subordinated Notes due 2036

			
	 	 	 
	No.                     
	 	CUSIP: 02744M AA 6

     American Medical Systems Holdings, Inc., a Delaware corporation, promises to pay to                     
or registered assigns the principal amount of                                          dollars ($                    ) on
July 1, 2036.

     This Security shall bear interest as specified on the other side of this Security. This
Security is convertible as specified on the other side of this Security.

     The Notes Guarantors that are parties to the Indenture, and their successors under the
Indenture, have jointly and severally, fully and unconditionally, guaranteed the payment of
principal of, premium, if any, and interest on the Securities, subject to the subordination
provisions and other terms and conditions set forth in the Indenture.

     Additional provisions of this Security are set forth on the other side of this Security.

Dated:                     , 2006

[SIGNATURE PAGE FOLLOWS]

A-3

 

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

	 	 	 	 	 
	 	 	AMERICAN MEDICAL SYSTEMS HOLDINGS, INC.
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	 	 	Name:
	 

	 	 	 	Title:

Dated:                     , 2006

Trustee’s Certificate of Authentication: This is one of the

Securities referred to in the within-mentioned Indenture.

U.S. BANK NATIONAL ASSOCIATION,

   as Trustee

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

Authorized Signatory
	 	 

A-4

 

[FORM OF REVERSE SIDE OF SECURITY]

AMERICAN MEDICAL SYSTEMS HOLDINGS, INC.

CONVERTIBLE SENIOR SUBORDINATED NOTES DUE 2036

1. INTEREST

     American Medical Systems Holdings, Inc., a Delaware corporation (the “Company,” which term
shall include any successor corporation under the Indenture hereinafter referred to), promises to
pay interest on the principal amount of this Security at the rate of 31/4% per annum. The Company
shall pay interest semiannually on January 1 and July 1 of each year (each, an “Interest Payment
Date”), commencing January 1, 2007. Each payment of interest will include interest accrued through
the day before the relevant Interest Payment Date (or purchase date). Interest shall accrue from
the most recent date to which interest has been paid or, if no interest has been paid, from June
27, 2006; provided, however, that if there is not an existing default in the
payment of interest and if this Security is authenticated between a Regular Record Date (as defined
below) and the next succeeding Interest Payment Date, interest shall accrue from such Interest
Payment Date. Interest will be computed on the basis of a 360-day year comprised of twelve 30-day
months. Any payment required to be made on a day that is not a Business Day shall be made on the
next succeeding Business Day. Any reference herein to interest accrued or payable as of any date
shall include any Contingent Interest accrued or payable on such date as provided in the Indenture.

     The Company shall pay Contingent Interest on the Securities as provided in the Indenture.

     No sinking fund is provided for the Securities.

2. METHOD OF PAYMENT

     The Company shall pay interest, including Contingent Interest, on this Security (except
defaulted interest) to the person who is the Holder of this Security at the close of business on
the June 15 or December 15, as the case may be (each, a “Regular Record Date”), immediately
preceding the related Interest Payment Date. The Holder must surrender this Security to a Paying
Agent to collect payment of principal. The Company will pay principal and interest, including
Contingent Interest, in money of the United States that at the time of payment is legal tender for
payment of public and private debts. The Company may pay principal and interest, including
Contingent Interest, by check or wire payable in such money; provided, however,
that a Holder with an aggregate principal amount of $2,000,000 or more will be paid by wire
transfer in immediately available funds at the election of such Holder if such Holder is not the
Depositary or its nominee and it has provided in writing wire transfer instructions to the Trustee
at least 10 Business Days prior to the Payment Date. The Company may mail an interest check to the
Holder’s registered address. Notwithstanding the foregoing, so long as this Security is registered
in the name of a Depositary or its nominee, all payments hereon shall be made by wire transfer of
immediately available funds to the account of the Depositary or its nominee.

     Any wire transfer instructions received by the Trustee will remain in effect until revoked by
the Holder.

3. PAYING AGENT, REGISTRAR AND CONVERSION AGENT

     Initially, U.S. Bank National Association (the “Trustee,” which term shall include any
successor trustee under the Indenture hereinafter referred to) will act as Paying Agent, Registrar
and Conversion Agent. The Company may change any Paying Agent, Registrar or Conversion Agent
without notice to

A-5

 

the Holder. The Company or any of its Subsidiaries may, subject to certain limitations set
forth in the Indenture, act as Paying Agent or Registrar.

4. INDENTURE, LIMITATIONS

     This Security is one of a duly authorized issue of Securities of the Company designated as its
31/4% Convertible Senior Subordinated Notes due 2036 (the “Securities”), issued under an Indenture
dated as of June 27, 2006 (together with any supplemental indentures thereto, the “Indenture”),
among the Company, the Notes Guarantors and the Trustee. The terms of this Security include those
stated in the Indenture and those required by or made part of the Indenture by reference to the
Trust Indenture Act of 1939, as amended, as in effect on the date of the Indenture. This Security
is subject to all such terms, and the Holder of this security is referred to the Indenture and said
Act for a statement of them. Capitalized terms not otherwise defined herein have the meaning
ascribed to such terms in the Indenture.

     The Securities are unsecured, subordinated obligations of the Company limited to $325,000,000
aggregate principal amount ($373,750,000 aggregate principal amount if the Underwriters exercise
their over-allotment option in full). The Indenture does not limit other debt of the Company,
secured or unsecured.

5. OPTIONAL REDEMPTION

     a. The Securities are subject to redemption, as a whole or from time to time in part, at any
time on or after July 6, 2011, at the redemption prices (expressed as percentages of the principal
amount of the Securities being redeemed) set forth below together with accrued and unpaid interest,
including Contingent Interest, up to, but not including, the Redemption Date:

	 	 	 	 	 
	Period	 	Redemption Price
	July 6, 2011 through June 30, 2012
	 	 	100.929	%
	July 1, 2012 through June 30, 2013
	 	 	100.464	%
	July 1, 2013 and thereafter
	 	 	100.000	%

provided that if the Redemption Date is an interest payment date, interest will be payable
to the Holders in whose name the Securities are registered at the close of business on the relevant
Regular Record Date.

     b. Notice of redemption will be mailed by first-class mail at least 20 but not more than 60
days before the Redemption Date to each Holder of Securities to be redeemed at its registered
address. Securities in denominations larger than $1,000 may be redeemed in part, but only in whole
multiples of $1,000. On and after the Redemption Date, subject to the deposit with the Paying
Agent of funds sufficient to pay the Redemption Price plus accrued interest, if any, accrued to,
but excluding, the Redemption Date, interest shall cease to accrue on Securities or portions of
them called for redemption.

6. CONVERSION ARRANGEMENT ON CALL FOR REDEMPTION

     Any Securities called for redemption, unless surrendered for conversion before the close of
business on the Business Day immediately preceding the Redemption Date, may be deemed to be
purchased from the Holders of such Securities at an amount not less than the Redemption Price,
together with accrued interest, including Contingent Interest, if any, to, but not including, the
Redemption Date, by one or more investment banks or other purchasers who may agree with the Company
to purchase such Securities from the Holders, to convert them into Common Stock of the Company and
to make payment for such Securities to the Paying Agent in trust for such Holders.

A-6

 

7. REPURCHASE AT THE OPTION OF THE HOLDERS

     a. The Holders may require the Company to repurchase any outstanding Securities for cash, on
July 1, 2013, July 1, 2016, July 1, 2021, July 1, 2026 and July 1, 2031 (each a “Repurchase Date”)
at a purchase price per Security equal to 100% of the aggregate principal amount of the Security,
together with any accrued and unpaid interest, including Contingent Interest, to but not including
the applicable Repurchase Date; provided that if such Repurchase Date is an interest
payment date, interest on the Securities will be payable to the Holders in whose names the
Securities are registered at the close of business on the relevant Regular Record Date.

     b. The Company shall give written notice of the applicable Repurchase Date by delivery of the
Repurchase Notice as provided in the Indenture, to each Holder (at its address shown in the
register of the Registrar) and to beneficial owners as required by applicable law, not less than 20
Business Days prior to each Repurchase Date.

8. PURCHASE OF SECURITIES AT HOLDERS’ OPTION UPON A DESIGNATED EVENT

     If a Designated Event occurs prior to the Final Maturity Date, at the option of the Holder and
subject to the terms and conditions of the Indenture, the Company shall become obligated to
purchase for cash, all or any portion specified by the Holder (so long as the principal amount of
such part is $1,000 or an integral multiple of $1,000) of the Securities held by such Holder on a
date specified by the Company that is 40 days after the date the Company mails the Designated Event
Company Notice, at the Designated Event Purchase Price. The Holder shall have the right to
withdraw any Designated Event Purchase Notice (in whole or in a portion thereof that is $1,000 or
an integral multiple of $1,000) at any time prior to the close of business on the Business Day next
preceding the Designated Event Purchase Date by delivering a written notice of withdrawal to the
Paying Agent in accordance with the terms of the Indenture.

9. CONVERSION

     Subject to and upon compliance with the provisions of the Indenture including, without
limitation, the provisions of Section 4.01(a) of the Indenture, and upon the occurrence of the
events specified in the Indenture, a Holder may surrender for conversion any Security that is
$1,000 principal amount or integral multiples thereof; provided, however, that if the Security is
called for redemption, the conversion right will terminate at the close of business on the Business
Day immediately preceding the Redemption Date for such Security or such earlier date as the Holder
presents such Security for redemption (unless the Company shall default in making the redemption
payment when due, in which case the conversion right shall terminate at the close of business on
the date such default is cured and such Security is redeemed). In lieu of receiving shares of
Common Stock, a Holder will receive, for each $1,000 principal amount of Securities surrendered for
conversion:

	 	-	 	cash in an amount equal to the lesser of (1) $1,000 and (2) the Conversion
Value; and
	 
	 	-	 	if the Conversion Value is greater than $1,000, a number of shares of Common
Stock equal to the sum of the Daily Share Amounts, for each of the twenty consecutive
Trading Days in the Conversion Reference Period, appropriately adjusted to reflect
stock splits, stock dividends, combinations or similar events occurring during the
Conversion Reference Period.

     The Conversion Rate on any Securities surrendered in connection with a Designated Event may be
increased by an amount, if any, determined in accordance with Section 4.01(i) of the Indenture.

A-7

 

     A Security in respect of which a Holder had delivered a Designated Event Purchase Notice or
Repurchase Election Notice, exercising the option of such Holder to require the Company to purchase
or repurchase such Security may be converted only if the Designated Event Purchase Notice or
Repurchase Election Notice is withdrawn in accordance with the terms of the Indenture and in the
case of the Repurchase Election Notice, the Securities are otherwise convertible in accordance
herewith and the terms of the Indenture.

10. SUBORDINATION

     To the extent provided in the Indenture, the Securities and the Notes Guarantees are
subordinated to Senior Debt, as defined in the Indenture. To the extent provided in the Indenture,
Senior Debt must be paid in full before the Securities may be paid. The Company and each Notes
Guarantor agrees, and each Holder by accepting a Security agrees, to the subordination provisions
contained in the Indenture and authorizes the Trustee to give it effect and appoints the Trustee as
attorney-in-fact for such purpose.

11. GUARANTEES

     The Company’s obligations under the Securities are fully and unconditionally guaranteed,
jointly and severally, by the Notes Guarantors as such Notes Guarantors may change from time to
time in accordance with the terms of the Indenture (including, without limitation, the
subordination terms and conditions set forth in Section 11 of the Indenture).

12. DENOMINATIONS, TRANSFER, EXCHANGE

     The Securities are in registered form, without coupons, in denominations of $1,000 principal
amount and integral multiples of $1,000 principal amount. A Holder may register the transfer of or
exchange Securities in accordance with the Indenture. The Registrar may require a Holder, among
other things, to furnish appropriate endorsements and transfer documents.

13. PERSONS DEEMED OWNERS

     The Holder of a Security may be treated as the owner of it for all purposes.

14. UNCLAIMED MONEY

     If money for the payment of principal or interest remains unclaimed for two years, the Trustee
and any Paying Agent will pay the money back to the Company at its written request, subject to
applicable unclaimed property law and the provisions of the Indenture. After that, Holders
entitled to money must look to the Company for payment as general creditors unless an applicable
abandoned property law designates another person.

15. AMENDMENT, SUPPLEMENT AND WAIVER

     Subject to certain exceptions, the Indenture or the Securities may be amended or supplemented
with the consent of the Holders of at least a majority in aggregate principal amount of the
Securities then outstanding, and an existing Default or Event of Default and its consequence or
compliance with any provision of the Indenture or the Securities may be waived in a particular
instance with the consent of the Holders of a majority in aggregate principal amount of the
Securities then outstanding. Without the consent of or notice to any Holder, the Company and the
Trustee may amend or supplement the Indenture or the Securities to, among other things, cure any
ambiguity, defect or inconsistency or make any other change that does not adversely affect the
rights of the Holders in any material respect.

A-8

 

16. SUCCESSOR ENTITY

     When a successor corporation 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 corporation (except in certain circumstances specified in the Indenture) shall be
released from those obligations.

17. DEFAULTS AND REMEDIES

     In case an Event of Default (as defined in the Indenture) shall have occurred and be
continuing, the principal of, premium, if any, and all accrued interest on the Securities may be
declared, and upon said declaration shall become, due and payable, in the manner, with the effect
and subject to the conditions provided in the Indenture.

18. TRUSTEE DEALINGS WITH THE COMPANY

     U.S. Bank National Association, the initial Trustee under the Indenture, in its individual or
any other capacity, may make loans to, accept deposits from and perform services for the Company,
the Notes Guarantors, or an Affiliate of the Company, and may otherwise deal with the Company, the
Notes Guarantors, or their Affiliates, as if it were not the Trustee.

19. NO RECOURSE AGAINST OTHERS

     A director, officer, employee or stockholder, as such, of the Company or the Notes Guarantors
shall not have any liability for any obligations of the Company or the Notes Guarantors under the
Securities or the Indenture nor for any claim based on, in respect of or by reason of such
obligations or their creation. The Holder of this Security by accepting this Security waives and
releases all such liability. The waiver and release are part of the consideration for the issuance
of this Security and the Notes Guarantees.

20. AUTHENTICATION

     This Security shall not be valid until the Trustee or an authenticating agent manually signs
the certificate of authentication on the other side of this Security.

21. 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) and UGMA (= Uniform Gifts to Minors
Act).

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

22. INDENTURE TO CONTROL; GOVERNING LAW

     In the case of any conflict between the provisions of this Security and the Indenture, the
provisions of the Indenture shall control. This Security and the Indenture shall be governed by,
and construed in accordance with, the laws of the State of New York.

A-9

 

     The Company will furnish to any Holder, upon written request and without charge, a copy of the
Indenture. Requests may be made to: American Medical Systems Holdings, Inc., 10700 Bren Road
West, Minnetonka, Minnesota 55343, Attention: Carmen Diersen, Chief Financial Officer, Facsimile:
(952) 930-6373.

A-10

 

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.

	 	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	Your Signature	 	 
	 
	 	 	 	 	 	 	 	 
	Date:
	 	 	 	 	 	 	 	 
	 

	 	 

	 	 
	 	 

(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-11

 

CONVERSION NOTICE

     To convert this Security into Common Stock of the Company, check the box:

     To convert only part of this Security, state the principal amount to be converted (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)

	 	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	Your Signature	 	 
	 
	 	 	 	 	 	 	 	 
	Date:
	 	 	 	 	 	 	 	 
	 

	 	 

	 	 
	 	 

(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-12

 

DESIGNATED EVENT REPURCHASE NOTICE

To: American Medical Systems Holdings, Inc.

          The undersigned registered owner of this Security hereby irrevocably acknowledges receipt of a
notice from American Medical Systems Holdings, Inc. (the “Company”) as to the occurrence of a
Designated Event with respect to the Company and requests and instructs the Company to purchase 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 Security and the Indenture
referred to in the Security at the Designated Event Purchase Price, together with accrued and
unpaid interest and Contingent Interest, if any, to, but excluding, such date, to the registered
Holder hereof.

	 	 	 	 	 	 	 	 	 
	Date:
	 	 	 	 	 	 	 	 
	 

	 	 

	 	 
	 	 

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 redeemed (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 this Security in every particular, without any alteration or change whatsoever.

A-13

 

REPURCHASE ELECTION NOTICE

To: American Medical Systems Holdings, Inc.

          The undersigned registered owner of this Security hereby requests and instructs American
Medical Systems Holdings, Inc. (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 Security and the Indenture referred to in the
Security at the Repurchase Price on                     , together with accrued and unpaid interest and
Contingent Interest, if any, to, but excluding, such date, to the registered Holder hereof.

	 	 	 	 	 	 	 	 	 
	Date:
	 	 	 	 	 	 	 	 
	 

	 	 

	 	 
	 	 

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 redeemed (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 this Security in every particular, without any alteration or change whatsoever.

A-14

 

SCHEDULE OF EXCHANGES OF SECURITIES1

     The following exchanges, purchases, redemptions, repurchases or conversions of a part of this
Global Security have been made:

	 	 	 	 	 	 	 	 	 	 	 	 	 
	Principal Amount of	 	 	 	 	 	 	 	 	 
	this Global Security	 	 	 	 	 	 	 	 	 
	Following Such	 	 	 	 	 	 	 	 	 
	Decrease Date of	 	Authorized Signatory	 	 	Amount of Decrease	 	 	Amount of Increase in	 
	Exchange (or	 	of Securities	 	 	in Principal Amount	 	 	Principal Amount of	 
	Increase)	 	Custodian	 	 	of this Global Security	 	 	this Global Security	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 

 

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

A-15

 

EXHIBIT B

GUARANTEE

          THE OBLIGATIONS EVIDENCED HEREBY ARE SUBORDINATE IN THE MANNER AND TO THE EXTENT SET FORTH IN
THAT CERTAIN INDENTURE DATED AS OF EVEN DATE HEREWITH, BY AND AMONG AMERICAN MEDICAL SYSTEMS
HOLDINGS, INC., AS ISSUER, THE NOTES GUARANTORS PARTY THERETO, AS GUARANTORS, AND U.S. BANK
NATIONAL ASSOCIATION, AS TRUSTEE, AND EACH HOLDER OF THIS GUARANTEE, BY ITS ACCEPTANCE HEREOF,
SHALL BE BOUND BY THE PROVISIONS OF THE INDENTURE, INCLUDING WITHOUT LIMITATION, THE SUBORDINATION
TERMS THEREIN.

          For good and valuable consideration received from the Company by the undersigned (hereinafter
referred to as the “Notes Guarantors,” which term includes any successor or additional Notes
Guarantors), the receipt and sufficiency of which is hereby acknowledged, subject to Sections 11.13
and 12.03 of the Indenture, each Notes Guarantor, jointly and severally, hereby unconditionally
guarantees, irrespective of the validity or enforceability of the Indenture, the Securities, or the
obligations of any party under the Indenture of the Securities, (a) the due and punctual payment of
the principal of (and premium, if any) and interest, including Contingent Interest, if any, on the
Securities, whether at the Final Maturity Date or on an Interest Payment Date, by acceleration,
call for redemption, repurchase, or otherwise (subject to any applicable grace period), (b) the due
and punctual payment of interest on the overdue principal and premium, if any, of the interest
(including Contingent Interest), if any, on the Securities, if lawful, (c) the due and punctual
payment and performance (subject to any applicable grace period) of all other obligations of the
Company under this Security and the Indenture, all in accordance with the terms set forth therein
and (d) in case of any extension of time of payment or renewal of any Securities or any of such
other obligations under the Securities or the Indenture, the due and punctual payment or
performance thereof (subject to any applicable grace period) in accordance with the terms of the
extension or renewal, whether at the Final Maturity Date, by acceleration or otherwise. To the
extent provided in the Indenture, the Notes Guarantees are subordinated to Senior Debt, as defined
in the Indenture.

          No past, present or future director, officer, employee, incorporator, stockholder, members or
controlling person of the Notes Guarantor (or any successor entity), as such, shall have any
liability under this Notes Guarantee for any obligations of the Notes Guarantor under this Security
or the Indenture, or for any claim based on, in respect of, or by reason of, such obligations or
their creation. Each Holder by accepting this Security waives and releases all such liability.

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

[SIGNATURE PAGE FOLLOWS]

B-1

 

          IN WITNESS WHEREOF, each of the Notes Guarantors has caused this Notes Guarantee to be
signed by a duly authorized officer.

	 	 	 	 	 	 	 
	Dated:                     , 2006
	 	 	 	 	 	 
	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Name:
	 	 
	 

	 	 	 	Title:	 	 
	 
	 	 	 	 	 	 
	 	 	 	 	 
	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Name:
	 	 
	 

	 	 	 	Title:	 	 
	 
	 	 	 	 	 	 
	 	 	 	 	 
	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

Name:
	 	 
	 

	 	 	 	Title:	 	 

B-2

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