Document:

EX-10.2

 Exhibit 10.2 
 CELATOR PHARMACEUTICALS, INC. 
 2013 EMPLOYEE STOCK PURCHASE PLAN

  

	1.	GENERAL; PURPOSE. 

 (a)
This Plan provides a means by which Eligible Employees of the Company and certain designated Related Corporations may be given an opportunity to purchase shares of Common Stock. This Plan permits the Company to grant a series of Purchase Rights to
Eligible Employees under an Employee Stock Purchase Plan. 
 (b) The Company, by means of this Plan, seeks to retain the
services of such Employees, to secure and retain the services of new Employees and to provide incentives for such persons to exert maximum efforts for the success of the Company and its Related Corporations. 

(c) Unless the context otherwise dictates, capitalized terms used in this Plan shall have the respective meanings set forth in
Section 15. 
  

	2.	ADMINISTRATION. 

 (a) The
Board will administer this Plan unless and until the Board delegates administration of this Plan to a Committee or Committees, as provided in Section 2(c). 
 (b) The Board will have the power, subject to, and within the limitations of, the express provisions of this Plan: 
 (i) To determine how and when Purchase Rights will be granted and the provisions of each Offering (which need not be identical). 
 (ii) To designate from time to time which Related Corporations of the Company will be eligible to participate in this Plan. 
 (iii) To construe and interpret this Plan and Purchase Rights, and to establish, amend and revoke rules and regulations for its administration. The Board, in the exercise of this power, may correct any
defect, omission or inconsistency in this Plan, in a manner and to the extent it deems necessary or expedient to make this Plan fully effective. 
 (iv) To settle all controversies regarding this Plan and Purchase Rights granted under this Plan. 
 (v) To suspend or terminate this Plan at any time as provided in Section 12. 

(vi) To amend this Plan at any time as provided in Section 12. 

 (vii) Generally, to exercise such powers and to perform such acts as it deems necessary or
expedient to promote the best interests of the Company and its Related Corporations and to carry out the intent that this Plan be treated as an Employee Stock Purchase Plan. 
 (viii) To adopt such procedures and sub-plans as are necessary or appropriate to permit participation in this Plan by Employees who are foreign nationals or employed outside the United States. 

(c) The Board may delegate some or all of the administration of this Plan to a Committee or Committees. If administration is delegated to
a Committee, the Committee will have, in connection with the administration of this Plan, the powers theretofore possessed by the Board that have been delegated to the Committee, including the power to delegate to a subcommittee any of the
administrative powers the Committee is authorized to exercise (and references in this Plan to the Board will thereafter be to the Committee or subcommittee), subject, however, to such resolutions, not inconsistent with the provisions of this Plan,
as may be adopted from time to time by the Board. The Board may retain the authority to concurrently administer this Plan with the Committee and may, at any time, revest in the Board some or all of the powers previously delegated. Whether or not the
Board has delegated administration of this Plan to a Committee, the Board will have the final power to determine all questions of policy and expediency that may arise in the administration of this Plan. 

(d) All determinations, interpretations and constructions made by the Board in good faith will not be subject to review by any person and
will be final, binding and conclusive on all persons. 
  

	3.	SHARES OF COMMON STOCK SUBJECT TO THE PLAN. 

 (a) Subject to the provisions of Section 11(a) relating to Capitalization Adjustments, the maximum number of shares of Common Stock that may be issued under this Plan will not exceed 252,246 shares
of Common Stock, plus the number of shares of Common Stock that are automatically added on January 1 of each year, commencing on January 1, 2014 and ending on (and including) January 1, 2023, in an amount equal to the lesser of
(i) 1% of the total number of shares of Capital Stock outstanding on December 31 of the preceding calendar year, and (ii) 1,000,000 shares of Common Stock. Notwithstanding the foregoing, the Board may act prior to the first day of any
calendar year to provide that there will be no January 1 increase in the share reserve for such calendar year or that the increase in the share reserve for such calendar year will be a lesser number of shares of Common Stock than would
otherwise occur pursuant to the preceding sentence. 
 (b) If any Purchase Right granted under this Plan terminates without
having been exercised in full, the shares of Common Stock not purchased under such Purchase Right will again become available for issuance under this Plan. 
 (c) The stock purchasable under this Plan will be shares of authorized but unissued or reacquired Common Stock, including shares repurchased by the Company on the open market. 

  
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	4.	GRANT OF PURCHASE RIGHTS; OFFERING. 

 (a) The Board may from time to time grant or provide for the grant of Purchase Rights to Eligible Employees under an Offering (consisting of one or more Purchase Periods) on an Offering Date or Offering
Dates selected by the Board. Each Offering will be in such form and will contain such terms and conditions as the Board will deem appropriate, and will comply with the requirement of Section 423(b)(5) of the Code that all Employees granted
Purchase Rights will have the same rights and privileges. The terms and conditions of an Offering shall be incorporated by reference into this Plan and treated as part of this Plan. The provisions of separate Offerings need not be identical, but
each Offering will include (through incorporation of the provisions of this Plan by reference in the document comprising the Offering or otherwise) the period during which the Offering will be effective, which period will not exceed six months
beginning with the Offering Date, and the substance of the provisions contained in Sections 5 through 8. 
 (b) If a Participant
has more than one Purchase Right outstanding under this Plan, unless the Participant otherwise indicates in forms delivered to the Company: (i) each form will apply to all of the Participant’s Purchase Rights under this Plan, and
(ii) a Purchase Right with a lower exercise price (or an earlier-granted Purchase Right, if different Purchase Rights have identical exercise prices) will be exercised to the fullest possible extent before a Purchase Right with a higher
exercise price (or a later-granted Purchase Right if different Purchase Rights have identical exercise prices) will be exercised. 
 (c) The Board will have the discretion to structure an Offering so that if the Fair Market Value of a share of Common Stock on the first Trading Day of a new Purchase Period within that Offering is less
than or equal to the Fair Market Value of a share of Common Stock on the Offering Date for that Offering, then (i) that Offering will terminate immediately as of that first Trading Day, and (ii) the Participants in such terminated Offering
will be automatically enrolled in a new Offering beginning on the first Trading Day of such new Purchase Period. 
  

	5.	ELIGIBILITY. 

 (a)
Purchase Rights may be granted only to Employees of the Company or, as the Board may designate in accordance with Section 2(b), to Employees of a Related Corporation. Except as provided in Section 5(b), an Employee will not be eligible to
be granted Purchase Rights unless, on the Offering Date, the Employee has been in the employ of the Company or the Related Corporation, as the case may be, for such continuous period preceding such Offering Date as the Board may require, but in no
event will the required period of continuous employment be equal to or greater than two years. In addition, the Board may provide that no Employee will be eligible to be granted Purchase Rights under this Plan unless, on the Offering Date, such
Employee’s customary employment with the Company or the Related Corporation is more than 20 hours per week and more than five months per calendar year or such other criteria as the Board may determine consistent with Section 423 of the
Code. 
 (b) The Board may provide that each person who, during the course of an Offering, first becomes an Eligible Employee
will, on a date or dates specified in the Offering that coincides with the day on which such person becomes an Eligible Employee or which occurs 

  
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thereafter, receive a Purchase Right under that Offering, which Purchase Right will thereafter be deemed to be a part of that Offering. Such Purchase Right will have the same characteristics as
any Purchase Rights originally granted under that Offering, as described herein, except that: 
 (i) the date on which such
Purchase Right is granted will be the “Offering Date” of such Purchase Right for all purposes, including determination of the exercise price of such Purchase Right; 
 (ii) the period of the Offering with respect to such Purchase Right will begin on its Offering Date and end coincident with the end of such Offering; and 

(iii) the Board may provide that if such person first becomes an Eligible Employee within a specified period of time before the end of
the Offering, he or she will not receive any Purchase Right under that Offering. 
 (c) No Employee will be eligible for the
grant of any Purchase Rights if, immediately after any such Purchase Rights are granted, such Employee owns stock possessing 5% or more of the total combined voting power or value of all classes of stock of the Company or of any Related Corporation.
For purposes of this Section 5(c), the rules of Section 424(d) of the Code will apply in determining the stock ownership of any Employee, and stock which such Employee may purchase under all outstanding Purchase Rights and options will be
treated as stock owned by such Employee. 
 (d) As specified by Section 423(b)(8) of the Code, an Eligible Employee may be
granted Purchase Rights only if such Purchase Rights, together with any other rights granted under all Employee Stock Purchase Plans of the Company and any Related Corporations, do not permit such Eligible Employee’s rights to purchase stock of
the Company or any Related Corporation to accrue at a rate which exceeds $25,000 of Fair Market Value of such stock (determined at the time such rights are granted, and which, with respect to this Plan, will be determined as of their respective
Offering Dates) for each calendar year in which such rights are outstanding at any time. 
 (e) Officers of the Company and any
designated Related Corporation, if they are otherwise Eligible Employees, will be eligible to participate in Offerings under this Plan. Notwithstanding the foregoing, the Board may provide in an Offering that Employees who are highly compensated
Employees within the meaning of Section 423(b)(4)(D) of the Code will not be eligible to participate. 
  

	6.	PURCHASE RIGHTS; PURCHASE PRICE. 

 (a) On each Offering Date, each Eligible Employee, pursuant to an Offering made under this Plan, will be granted a Purchase Right to purchase up to that number of shares of Common Stock purchasable either
with a percentage or with a maximum dollar amount, as designated by the Board, but in either case not exceeding 15% of such Employee’s earnings (as defined by the Board in each Offering) during the period that begins on the Offering Date (or
such later date as the Board determines for a particular Offering) and ends on the date stated in the Offering, which date will be no later than the end of the Offering. 

  
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 (b) The Board will establish one or more Purchase Dates during an Offering on which Purchase
Rights granted for that Offering will be exercised and shares of Common Stock will be purchased in accordance with such Offering. 
 (c) In connection with each Offering made under this Plan, the Board may specify (i) a maximum number of shares of Common Stock that may be purchased by any Participant on any Purchase Date during
such Offering, (ii) a maximum aggregate number of shares of Common Stock that may be purchased by all Participants pursuant to such Offering and/or (iii) a maximum aggregate number of shares of Common Stock that may be purchased by all
Participants on any Purchase Date under the Offering. If the aggregate purchase of shares of Common Stock issuable upon exercise of Purchase Rights granted under the Offering would exceed any such maximum aggregate number, then, in the absence of
any Board action otherwise, a pro rata (based on each Participant’s accumulated Contributions) allocation of the shares of Common Stock available will be made in as nearly a uniform manner as will be practicable and equitable. 

(d) The purchase price of shares of Common Stock acquired pursuant to Purchase Rights will be not less than the lesser of: 

(i) an amount equal to 85% of the Fair Market Value of the shares of Common Stock on the Offering Date; or 

(ii) an amount equal to 85% of the Fair Market Value of the shares of Common Stock on the applicable Purchase Date. 

 

	7.	PARTICIPATION; WITHDRAWAL; TERMINATION. 

 (a) An Eligible Employee may elect to authorize payroll deductions as the means of making Contributions by completing and delivering to the Company, within the time specified in the Offering, an
enrollment form provided by the Company. The enrollment form will specify the amount of Contributions not to exceed the maximum amount specified by the Board. Each Participant’s Contributions will be credited to a bookkeeping account for such
Participant under this Plan and will be deposited with the general funds of the Company except where applicable law requires that Contributions be deposited with a third party. If permitted in the Offering, a Participant may begin such Contributions
with the first payroll occurring on or after the Offering Date (or, in the case of a payroll date that occurs after the end of the prior Offering but before the Offering Date of the next new Offering, Contributions from such payroll will be included
in the new Offering). If permitted in the Offering, a Participant may thereafter reduce (including to zero) or increase his or her Contributions. If specifically provided in the Offering, in addition to making Contributions by payroll deductions, a
Participant may make Contributions through the payment by cash or check prior to a Purchase Date. 
 (b) During an Offering, a
Participant may cease making Contributions and withdraw from the Offering by delivering to the Company a withdrawal form provided by the Company. The Company may impose a deadline before a Purchase Date for withdrawing. Upon such withdrawal, such
Participant’s Purchase Right in that Offering will immediately terminate and the Company will distribute to such Participant all of his or her accumulated but unused 

  
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Contributions and such Participant’s Purchase Right in that Offering shall thereupon terminate. A Participant’s withdrawal from that Offering will have no effect upon his or her
eligibility to participate in any other Offerings under this Plan, but such Participant will be required to deliver a new enrollment form to participate in subsequent Offerings. 

(c) Purchase Rights granted pursuant to any Offering under this Plan will terminate immediately if the Participant either (i) is no
longer an Employee for any reason or for no reason (subject to any post-employment participation period required by law) or (ii) is otherwise no longer eligible to participate. The Company will distribute to such individual all of his or her
accumulated but unused Contributions. 
 (d) During a Participant’s lifetime, Purchase Rights will be exercisable only by
such Participant. Purchase Rights are not transferable by a Participant, except by will, by the laws of descent and distribution, or, if permitted by the Company, by a beneficiary designation as described in Section 10. 

(e) Unless otherwise specified in the Offering, the Company will have no obligation to pay interest on Contributions. 

 

	8.	EXERCISE OF PURCHASE RIGHTS. 

 (a) On each Purchase Date, each Participant’s accumulated Contributions will be applied to the purchase of shares of Common Stock, up to the maximum number of shares of Common Stock permitted by this
Plan and the applicable Offering, at the purchase price specified in the Offering. No fractional shares will be issued unless specifically provided for in the Offering. 
 (b) If any amount of accumulated Contributions remains in a Participant’s account after the purchase of shares of Common Stock and such remaining amount is less than the amount required to purchase
one share of Common Stock on the final Purchase Date of an Offering, then such remaining amount will be held in such Participant’s account for the purchase of shares of Common Stock under the next Offering under this Plan, unless such
Participant withdraws from or is not eligible to participate in such Offering, in which case such amount will be distributed to such Participant after the final Purchase Date, without interest. If the amount of Contributions remaining in a
Participant’s account after the purchase of shares of Common Stock is at least equal to the amount required to purchase one whole share of Common Stock on the final Purchase Date of an Offering, then such remaining amount will not roll over to
the next Offering and will instead be distributed in full to such Participant after the final Purchase Date of such Offering without interest. 
 (c) No Purchase Rights may be exercised to any extent unless the shares of Common Stock to be issued upon such exercise under this Plan are covered by an effective registration statement pursuant to the
Securities Act and this Plan is in material compliance with all applicable federal, state, foreign and other securities and other laws applicable to this Plan. If on a Purchase Date the shares of Common Stock are not so registered or this Plan is
not in such compliance, no Purchase Rights will be exercised on such Purchase Date, and the Purchase Date will be delayed until the shares of Common Stock are subject to such an effective registration

  
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statement and this Plan is in material compliance, except that the Purchase Date will in no event be more than six months from the Offering Date. If, on the Purchase Date, as delayed to the
maximum extent permissible, the shares of Common Stock are not registered and this Plan is not in material compliance with all applicable laws, no Purchase Rights will be exercised and all accumulated but unused Contributions will be distributed to
the Participants without interest. 
  

	9.	COVENANTS OF THE COMPANY. 

The Company will seek to obtain from each federal, state, foreign or other regulatory commission or agency having jurisdiction over this
Plan such authority as may be required to grant Purchase Rights and issue and sell shares of Common Stock thereunder. If, after commercially reasonable efforts, the Company is unable to obtain the authority that counsel for the Company deems
necessary for the grant of Purchase Rights or the lawful issuance and sale of Common Stock under this Plan, and at a commercially reasonable cost, the Company will be relieved from any liability for failure to grant Purchase Rights and/or to issue
and sell Common Stock upon exercise of such Purchase Rights. 
  

	10.	DESIGNATION OF BENEFICIARY. 

 (a) The Company may, but is not obligated to, permit a Participant to submit a form designating a beneficiary who will receive any shares of Common Stock and/or Contributions from the Participant’s
account under this Plan if the Participant dies before such shares and/or Contributions are delivered to the Participant. The Company may, but is not obligated to, permit the Participant to change such designation of beneficiary. Any such
designation and/or change must be on a form approved by the Company. 
 (b) If a Participant dies, and in the absence of a valid
beneficiary designation, the Company will deliver any shares of Common Stock and/or Contributions to the executor or administrator of the estate of the Participant. If no executor or administrator has been appointed (to the knowledge of the
Company), the Company, in its sole discretion, may deliver such shares of Common Stock and/or Contributions to the Participant’s spouse, dependents or relatives, or if no spouse, dependent or relative is known to the Company, then to such other
person as the Company may designate. 
  

	11.	ADJUSTMENTS UPON CHANGES IN COMMON STOCK; CORPORATE TRANSACTIONS. 

 (a) In the event of a Capitalization Adjustment, the Board will appropriately and proportionately adjust: (i) the class(es) and maximum number of securities subject to this Plan pursuant to
Section 3(a), (ii) the class(es) and maximum number of securities by which the share reserve is to increase automatically each year pursuant to Section 3(a), (iii) the class(es) and number of securities subject to, and the
purchase price applicable to outstanding Offerings and Purchase Rights, and (iv) the class(es) and number of securities that are the subject of the purchase limits under each ongoing Offering. The Board will make these adjustments, and its
determination will be final, binding and conclusive. 
 (b) In the event of a Corporate Transaction, then: (i) any
surviving corporation or acquiring corporation (or the surviving or acquiring corporation’s parent company) may assume 

  
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or continue outstanding Purchase Rights or may substitute similar rights (including a right to acquire the same consideration paid to the stockholders in the Corporate Transaction) for
outstanding Purchase Rights, or (ii) if any surviving or acquiring corporation (or its parent company) does not assume or continue such Purchase Rights or does not substitute similar rights for such Purchase Rights, then the Participants’
accumulated Contributions will be used to purchase shares of Common Stock within ten business days prior to the Corporate Transaction under the outstanding Purchase Rights, and the Purchase Rights will terminate immediately after such purchase.

  

	12.	AMENDMENT, TERMINATION OR SUSPENSION OF THE PLAN. 

 (a) The Board may amend this Plan at any time in any respect the Board deems necessary or advisable. However, except as provided in Section 11(a) relating to Capitalization Adjustments, stockholder
approval will be required for any amendment of this Plan for which stockholder approval is required by applicable law or listing requirements, including any amendment that either (i) materially increases the number of shares of Common Stock
available for issuance under this Plan, (ii) materially expands the class of individuals eligible to become Participants and receive Purchase Rights, (iii) materially increases the benefits accruing to Participants under this Plan or
materially reduces the price at which shares of Common Stock may be purchased under this Plan, (iv) materially extends the term of this Plan, or (v) expands the types of awards available for issuance under this Plan, but in each of
(i) through (v) above only to the extent stockholder approval is required by applicable law or listing requirements. 

(b) The Board may suspend or terminate this Plan at any time. No Purchase Rights may be granted under this Plan while this Plan is
suspended or after it is terminated. 
 (c) Any benefits, privileges, entitlements and obligations under any outstanding
Purchase Rights granted before an amendment, suspension or termination of this Plan will not be materially impaired by any such amendment, suspension or termination except (i) with the consent of the person to whom such Purchase Rights were
granted, (ii) as necessary to comply with any laws, listing requirements, or governmental regulations (including, without limitation, the provisions of Section 423 of the Code and the regulations and other interpretive guidance issued
thereunder relating to Employee Stock Purchase Plans) including without limitation any such regulations or other guidance that may be issued or amended after the Effective Date, or (iii) as necessary to obtain or maintain favorable tax,
listing, or regulatory treatment. To be clear, the Board may amend outstanding Purchase Rights without a Participant’s consent if such amendment is necessary to ensure that the Purchase Right and/or this Plan complies with the requirements of
Section 423 of the Code. 
  

	13.	EFFECTIVE DATE OF PLAN. 

This Plan will become effective on the date that this Plan has been approved by the stockholders of the Company, which approval must be
within 12 months before or after the date this Plan is adopted (or if required under Section 12(a), materially amended) by the Board. 

  
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	14.	MISCELLANEOUS PROVISIONS. 

(a) Proceeds from the sale of shares of Common Stock pursuant to Purchase Rights will constitute general funds of the Company. 

(b) A Participant will not be deemed to be the holder of, or to have any of the rights of a holder with respect to, shares of Common
Stock subject to Purchase Rights unless and until the Participant’s shares of Common Stock acquired upon exercise of Purchase Rights are recorded in the books of the Company (or its transfer agent). 

(c) This Plan and Offering do not constitute an employment contract. Nothing in this Plan or in the Offering will in any way alter the at
will nature of a Participant’s employment or be deemed to create in any way whatsoever any obligation on the part of any Participant to continue in the employ of the Company or a Related Corporation, or on the part of the Company or a Related
Corporation to continue the employment of a Participant. 
 (d) The provisions of this Plan will be governed by the laws of the
State of Delaware without resort to that state’s conflicts of laws rules. 
  

	15.	DEFINITIONS. 

 As used in
this Plan, the following definitions will apply to the capitalized terms indicated below: 
 (a) “Board” means
the Board of Directors of the Company. 
 (b) “Capital Stock” means each and every class of capital stock of
the Company entitled to vote, regardless of the number of votes per share. 
 (c) “Capitalization Adjustment”
means any change that is made in, or other events that occur with respect to, the Common Stock subject to this Plan or subject to any Purchase Right after the Effective Date without the receipt of consideration by the Company through merger,
consolidation, reorganization, recapitalization, reincorporation, stock dividend, dividend in property other than cash, large nonrecurring cash dividend, stock split, liquidating dividend, combination of shares, exchange of shares, change in
corporate structure or other similar equity restructuring transaction, as that term is used in Financial Accounting Standards Board Accounting Standards Codification Topic 718 (or any successor thereto). Notwithstanding the foregoing, the conversion
of any convertible securities of the Company will not be treated as a Capitalization Adjustment. 
 (d) “Code”
means the Internal Revenue Code of 1986, as amended, including any applicable regulations and guidance thereunder. 
 (e)
“Committee” means a committee of one or more members of the Board to whom authority has been delegated by the Board in accordance with Section 2(c). 
 (f) “Common Stock” means the common stock of the Company, having one vote per share. 

  
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 (g) “Company” means Celator Pharmaceuticals, Inc., a Delaware corporation.

 (h) “Contributions” means the payroll deductions and other additional payments specifically provided for in
the Offering that a Participant contributes to fund the exercise of a Purchase Right. A Participant may make additional payments into his or her account if specifically provided for in the Offering, and then only if the Participant has not already
had the maximum permitted amount withheld during the Offering through payroll deductions. 
 (i) “Corporate
Transaction” means the consummation, in a single transaction or in a series of related transactions, of any one or more of the following events: 
 (i) a sale or other disposition of all or substantially all, as determined by the Board in its sole discretion, of the consolidated assets of the Company and its Subsidiaries; 

(ii) a sale or other disposition of at least 90% of the outstanding securities of the Company; 

(iii) a merger, consolidation or similar transaction following which the Company is not the surviving corporation; or 

(iv) a merger, consolidation or similar transaction following which the Company is the surviving corporation but the shares of Common
Stock outstanding immediately preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of the merger, consolidation or similar transaction into other property, whether in the form of securities, cash or
otherwise. 
 (j) “Director” means a member of the Board. 

(k) “Eligible Employee” means an Employee who meets the requirements set forth in the document(s) governing the Offering
for eligibility to participate in the Offering, provided that such Employee also meets the requirements for eligibility to participate set forth in this Plan. 
 (l) “Employee” means any person, including an Officer or Director, who is “employed” for purposes of Section 423(b)(4) of the Code by the Company or a Related Corporation.
However, service solely as a Director, or payment of a fee for such services, will not cause a Director to be considered an “Employee” for purposes of this Plan. 
 (m) “Employee Stock Purchase Plan” means a plan that grants Purchase Rights intended to be options issued under an “employee stock purchase plan,” as that term is defined in
Section 423(b) of the Code. 
 (n) “Exchange Act” means the Securities Exchange Act of 1934, as amended
and the rules and regulations promulgated thereunder. 

  
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 (o) “Fair Market Value” means, as of any date, the value of the Common
Stock determined as follows: 
 (i) If the Common Stock is listed on any established stock exchange or traded on any established
market, the Fair Market Value of a share of Common Stock will be the closing sales price for such stock as quoted on such exchange or market (or the exchange or market with the greatest volume of trading in the Common Stock) on the date of
determination, as reported in such source as the Board deems reliable. Unless otherwise provided by the Board, if there is no closing sales price for the Common Stock on the date of determination, then the Fair Market Value will be the closing sales
price on the last preceding date for which such quotation exists. 
 (ii) In the absence of such markets for the Common Stock,
the Fair Market Value will be determined by the Board in good faith in compliance with applicable laws and in a manner that complies with Sections 409A of the Code. 
 (p) “Offering” means the grant to Eligible Employees of Purchase Rights, with the exercise of those Purchase Rights automatically occurring at the end of one or more Purchase Periods. The
terms and conditions of an Offering will generally be set forth in the “Offering Document” approved by the Board for that Offering. 
 (q) “Offering Date” means a date selected by the Board for an Offering to commence. 
 (r) “Officer” means a person who is an officer of the Company or a Related Corporation within the meaning of Section 16 of the Exchange Act. 

(s) “Participant” means an Eligible Employee who holds an outstanding Purchase Right. 

(t) “Plan” means this Celator Pharmaceuticals, Inc. 2013 Employee Stock Purchase Plan. 

(u) “Purchase Date” means one or more dates during an Offering selected by the Board on which Purchase Rights will be
exercised and on which purchases of shares of Common Stock will be carried out in accordance with such Offering. 
 (v)
“Purchase Period” means a period of time specified within an Offering, generally beginning on the Offering Date or on the first Trading Day following a Purchase Date, and ending on a Purchase Date. An Offering may consist of one or
more Purchase Periods. 
 (w) “Purchase Right” means an option to purchase shares of Common Stock granted
pursuant to this Plan. 
 (x) “Related Corporation” means any “parent corporation” or
“subsidiary corporation” of the Company whether now or subsequently established, as those terms are defined in Sections 424(e) and (f), respectively, of the Code, designated by the Board as a Related Corporation. 

(y) “Securities Act” means the Securities Act of 1933, as amended. 

  
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 (z) “Trading Day” means any day on which the exchange(s) or market(s) on
which shares of Common Stock are listed. 
 Adopted by the Board of Directors:       April 12,
2013 
 Stockholder Approval Effective Date:    May 22, 2013 

  
 12EX-4.1

 Exhibit 4.1 

 
  
 US Airways Group, Inc. 
  

 
 INDENTURE

 Dated as of May 24, 2013 
  

 
 Wilmington
Trust, National Association 
 Trustee 
  

 

 TABLE OF CONTENTS 

 

							
	 	 	 	  	Page	 
	 ARTICLE I. DEFINITIONS AND INCORPORATION BY REFERENCE
	  	 	1	  
	 Section 1.1.
	 	Definitions	  	 	1	  
	 Section 1.2.
	 	Other Definitions	  	 	4	  
	 Section 1.3.
	 	Incorporation by Reference of Trust Indenture Act	  	 	4	  
	 Section 1.4.
	 	Rules of Construction	  	 	5	  
	 ARTICLE II. THE SECURITIES
	  	 	6	  
	 Section 2.1.
	 	Issuable in Series	  	 	6	  
	 Section 2.2.
	 	Establishment of Terms of Series of Securities	  	 	6	  
	 Section 2.3.
	 	Execution and Authentication	  	 	8	  
	 Section 2.4.
	 	Registrar and Paying Agent	  	 	9	  
	 Section 2.5.
	 	Paying Agent to Hold Money in Trust	  	 	10	  
	 Section 2.6.
	 	Securityholder Lists	  	 	10	  
	 Section 2.7.
	 	Transfer and Exchange	  	 	10	  
	 Section 2.8.
	 	Mutilated, Destroyed, Lost and Stolen Securities	  	 	11	  
	 Section 2.9.
	 	Outstanding Securities	  	 	12	  
	 Section 2.10.
	 	Treasury Securities	  	 	12	  
	 Section 2.11.
	 	Temporary Securities	  	 	12	  
	 Section 2.12.
	 	Cancellation	  	 	13	  
	 Section 2.13.
	 	Defaulted Interest	  	 	13	  
	 Section 2.14.
	 	Global Securities	  	 	13	  
	 Section 2.15.
	 	CUSIP Numbers	  	 	15	  
	 ARTICLE III. REDEMPTION
	  	 	15	  
	 Section 3.1.
	 	Notice to Trustee	  	 	15	  
	 Section 3.2.
	 	Selection of Securities to be Redeemed	  	 	15	  
	 Section 3.3.
	 	Notice of Redemption	  	 	16	  
	 Section 3.4.
	 	Effect of Notice of Redemption	  	 	17	  
	 Section 3.5.
	 	Deposit of Redemption Price	  	 	17	  
	 Section 3.6.
	 	Securities Redeemed in Part	  	 	17	  
	 ARTICLE IV. COVENANTS
	  	 	17	  
	 Section 4.1.
	 	Payment of Principal and Interest	  	 	17	  
	 Section 4.2.
	 	SEC Reports	  	 	17	  
	 Section 4.3.
	 	Compliance Certificate	  	 	18	  
	 Section 4.4.
	 	Stay, Extension and Usury Laws	  	 	18	  
	 Section 4.5.
	 	Corporate Existence	  	 	18	  
	 ARTICLE V. SUCCESSORS
	  	 	18	  
	 Section 5.1.
	 	When Company May Merge, Etc.	  	 	18	  
	 Section 5.2.
	 	Successor Corporation Substituted	  	 	19	  
	 ARTICLE VI. DEFAULTS AND REMEDIES
	  	 	19	  
	 Section 6.1.
	 	Events of Default	  	 	19	  
	 Section 6.2.
	 	Acceleration of Maturity; Rescission and Annulment	  	 	20	  
	 Section 6.3.
	 	Collection of Indebtedness and Suits for Enforcement by Trustee	  	 	21	  
	 Section 6.4.
	 	Trustee May File Proofs of Claim	  	 	22	  
	 Section 6.5.
	 	Trustee May Enforce Claims Without Possession of Securities	  	 	22	  

  
 i 

							
	 Section 6.6.
	 	Application of Money Collected	  	 	23	  
	 Section 6.7.
	 	Limitation on Suits	  	 	23	  
	 Section 6.8.
	 	Unconditional Right of Holders to Receive Principal and Interest	  	 	24	  
	 Section 6.9.
	 	Restoration of Rights and Remedies	  	 	24	  
	 Section 6.10.
	 	Rights and Remedies Cumulative	  	 	24	  
	 Section 6.11.
	 	Delay or Omission Not Waiver	  	 	24	  
	 Section 6.12.
	 	Control by Holders	  	 	25	  
	 Section 6.13.
	 	Waiver of Past Defaults	  	 	25	  
	 Section 6.14.
	 	Undertaking for Costs	  	 	25	  
	 ARTICLE VII. TRUSTEE
	  	 	26	  
	 Section 7.1.
	 	Duties of Trustee	  	 	26	  
	 Section 7.2.
	 	Rights of Trustee	  	 	27	  
	 Section 7.3.
	 	Individual Rights of Trustee	  	 	28	  
	 Section 7.4.
	 	Trustee’s Disclaimer	  	 	28	  
	 Section 7.5.
	 	Notice of Defaults	  	 	28	  
	 Section 7.6.
	 	Reports by Trustee to Holders	  	 	29	  
	 Section 7.7.
	 	Compensation and Indemnity	  	 	29	  
	 Section 7.8.
	 	Replacement of Trustee	  	 	30	  
	 Section 7.9.
	 	Successor Trustee by Merger, Etc.	  	 	31	  
	 Section 7.10.
	 	Eligibility; Disqualification	  	 	31	  
	 Section 7.11.
	 	Preferential Collection of Claims Against Company	  	 	31	  
	 ARTICLE VIII. SATISFACTION AND DISCHARGE; DEFEASANCE
	  	 	31	  
	 Section 8.1.
	 	Satisfaction and Discharge of Indenture	  	 	31	  
	 Section 8.2.
	 	Application of Trust Funds; Indemnification	  	 	32	  
	 Section 8.3.
	 	Legal Defeasance of Securities of any Series	  	 	33	  
	 Section 8.4.
	 	Covenant Defeasance	  	 	34	  
	 Section 8.5.
	 	Repayment to Company	  	 	35	  
	 Section 8.6.
	 	Reinstatement	  	 	36	  
	 ARTICLE IX. AMENDMENTS AND WAIVERS
	  	 	36	  
	 Section 9.1.
	 	Without Consent of Holders	  	 	36	  
	 Section 9.2.
	 	With Consent of Holders	  	 	37	  
	 Section 9.3.
	 	Limitations	  	 	37	  
	 Section 9.4.
	 	Compliance with Trust Indenture Act	  	 	38	  
	 Section 9.5.
	 	Revocation and Effect of Consents	  	 	38	  
	 Section 9.6.
	 	Notation on or Exchange of Securities	  	 	38	  
	 Section 9.7.
	 	Trustee Protected	  	 	39	  
	 ARTICLE X. MISCELLANEOUS
	  	 	39	  
	 Section 10.1.
	 	Trust Indenture Act Controls	  	 	39	  
	 Section 10.2.
	 	Notices	  	 	39	  
	 Section 10.3.
	 	Communication by Holders with Other Holders	  	 	40	  
	 Section 10.4.
	 	Certificate and Opinion as to Conditions Precedent	  	 	40	  
	 Section 10.5.
	 	Statements Required in Certificate or Opinion	  	 	41	  
	 Section 10.6.
	 	Rules by Trustee and Agents	  	 	41	  
	 Section 10.7.
	 	Legal Holidays	  	 	41	  
	 Section 10.8.
	 	No Recourse Against Others	  	 	41	  
	 Section 10.9.
	 	Counterparts	  	 	42	  

  
 ii 

							
	 Section 10.10.
	 	Governing Law	  	 	42	  
	 Section 10.11.
	 	No Adverse Interpretation of Other Agreements	  	 	42	  
	 Section 10.12.
	 	Successors	  	 	42	  
	 Section 10.13.
	 	Severability	  	 	42	  
	 Section 10.14.
	 	Table of Contents, Headings, Etc.	  	 	42	  
	 Section 10.15.
	 	Securities in a Foreign Currency	  	 	42	  
	 Section 10.16.
	 	Judgment Currency	  	 	43	  
	 Section 10.17.
	 	Force Majeure	  	 	44	  
	 ARTICLE XI. SINKING FUNDS
	  	 	44	  
	 Section 11.1.
	 	Applicability of Article	  	 	44	  
	 Section 11.2.
	 	Satisfaction of Sinking Fund Payments with Securities	  	 	44	  
	 Section 11.3.
	 	Redemption of Securities for Sinking Fund	  	 	45	  

  
 iii

 US AIRWAYS GROUP, INC. 

Reconciliation and tie between Trust Indenture Act of 1939 and 
 Indenture, dated as of May 24, 2013 
  

					
	 § 310(a)(1)
	 		  	7.10
	 (a)(2)
	 		  	7.10
	 (a)(3)
	 		  	Not Applicable
	 (a)(4)
	 		  	Not Applicable
	 (a)(5)
	 		  	7.10
	 (b)
	 		  	7.10
	 § 311(a)
	 		  	7.11
	 (b)
	 		  	7.11
	 (c)
	 		  	Not Applicable
	 § 312(a)
	 		  	2.6
	 (b)
	 		  	10.3
	 (c)
	 		  	10.3
	 § 313(a)
	 		  	7.6
	 (b)(1)
	 		  	7.6
	 (b)(2)
	 		  	7.6
	 (c)(1)
	 		  	7.6
	 (d)
	 		  	7.6
	 § 314(a)
	 		  	4.2, 10.5
	 (b)
	 		  	Not Applicable
	 (c)(1)
	 		  	10.4
	 (c)(2)
	 		  	10.4
	 (c)(3)
	 		  	Not Applicable
	 (d)
	 		  	Not Applicable
	 (e)
	 		  	10.5
	 (f)
	 		  	Not Applicable
	 § 315(a)
	 		  	7.1
	 (b)
	 		  	7.5
	 (c)
	 		  	7.1
	 (d)
	 		  	7.1
	 (e)
	 		  	6.14
	 § 316(a)
	 		  	2.10
	 (a)(1)(A)
	 		  	6.12
	 (a)(1)(B)
	 		  	6.13
	 (b)
	 		  	6.8
	 § 317(a)(1)
	 		  	6.3
	 (a)(2)
	 		  	6.4
	 (b)
	 		  	2.5
	 § 318(a)
	 		  	10.1

  
 Note:
This reconciliation and tie shall not, for any purpose, be deemed to be part of the Indenture. 

  
 iv 

 Indenture dated as of May 24, 2013 between US Airways Group, Inc., a Delaware
corporation (the “Company”) and Wilmington Trust, National Association, a national banking association (the “Trustee”). 
 Each party agrees as follows for the benefit of the other party and for the equal and ratable benefit of the Holders of the Securities issued under this Indenture. 

ARTICLE I. 

DEFINITIONS AND INCORPORATION BY REFERENCE 
 Section 1.1. Definitions. 
 “Additional Amounts”
means any additional amounts which are required hereby or by any Security, under circumstances specified herein or therein, to be paid by the Company in respect of certain taxes imposed on Holders specified herein or therein and which are owing to
such Holders. 
 “Affiliate” of any specified person means any other person directly or indirectly controlling
or controlled by or under common control with such specified person. For the purposes of this definition, “control” (including, with correlative meanings, the terms “controlled by” and “under common control with”), as
used with respect to any person, shall mean the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of such person, whether through the ownership of voting securities or by agreement or
otherwise. 
 “Agent” means any Registrar, Paying Agent or Notice Agent. 

“Board of Directors” means the board of directors of the Company or any duly authorized committee thereof. 

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

“Business Day” means, unless otherwise provided by Board Resolution, Officer’s Certificate or supplemental
indenture hereto for a particular Series, any day except a Saturday, Sunday or a legal holiday in The City of New York, New York (or in connection with any payment, the place of payment) on which banking institutions are authorized or required by
law, regulation or executive order to close. 
 “Capital Stock” means any and all shares, interests,
participations, rights or other equivalents (however designated) of corporate stock. 
 “Company” means the
party named as such above until a successor replaces it and thereafter means the successor. 

 “Company Order” means a written order signed in the name of the Company by
an Officer. 
 “Corporate Trust Office” means the office of the Trustee at which at any particular time its
corporate trust business related to this Indenture shall be principally administered. 
 “Default” means any
event which is, or after notice or passage of time or both would be, an Event of Default. 
 “Depositary”
means, with respect to the Securities of any Series issuable or issued in whole or in part in the form of one or more Global Securities, the person designated as Depositary for such Series by the Company, which Depositary shall be a clearing agency
registered under the Exchange Act; and if at any time there is more than one such person, “Depositary” as used with respect to the Securities of any Series shall mean the Depositary with respect to the Securities of such Series.

 “Discount Security” means any Security that provides for an amount less than the stated principal amount
thereof to be due and payable upon declaration of acceleration of the maturity thereof pursuant to Section 6.2. 

“Dollars” and “$” means the currency of The United States of America. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended. 

“Foreign Currency” means any currency or currency unit issued by a government other than the government of The United
States of America. 
 “Foreign Government Obligations” means, with respect to Securities of any Series that are
denominated in a Foreign Currency, direct obligations of, or obligations guaranteed by, the government that issued or caused to be issued such currency for the payment of which obligations its full faith and credit is pledged and which are not
callable or redeemable at the option of the issuer thereof. 
 “GAAP” means accounting principles generally
accepted in the United States of America set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting
Standards Board or in such other statements by such other entity as have been approved by a significant segment of the accounting profession, which are in effect as of the date of determination. 

“Global Security” or “Global Securities” means a Security or Securities, as the case may be, in the
form established pursuant to Section 2.2 evidencing all or part of a Series of Securities, issued to the Depositary for such Series or its nominee, and registered in the name of such Depositary or nominee. 

“Holder” or “Securityholder” means a person in whose name a Security is registered. 

  
 2 

 “Indenture” means this Indenture as amended or supplemented from time to
time and shall include the form and terms of particular Series of Securities established as contemplated hereunder. 

“interest” with respect to any Discount Security which by its terms bears interest only after Maturity, means interest
payable after Maturity. 
 “Maturity,” when used with respect to any Security, means the date on which the
principal of such Security becomes due and payable as therein or herein provided, whether at the Stated Maturity or by declaration of acceleration, call for redemption or otherwise. 

“Officer” means the Chief Executive Officer, President, the Chief Financial Officer, the Treasurer or any Assistant
Treasurer, the Secretary or any Assistant Secretary, and any Vice President of the Company. 
 “Officer’s
Certificate” means a certificate signed by any Officer. 
 “Opinion of Counsel” means a written
opinion of legal counsel who is acceptable to the Trustee. The counsel may be an employee of or counsel to the Company. 

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

“principal” of a Security means the principal of the Security plus, when appropriate, the premium, if any, on, and any
Additional Amounts in respect of, the Security. 
 “Responsible Officer” means any officer of the Trustee in
its Corporate Trust Office having responsibility for administration of this Indenture and also means, with respect to a particular corporate trust matter, any other officer to whom any corporate trust matter is referred because of his or her
knowledge of and familiarity with a particular subject. 
 “SEC” means the Securities and Exchange Commission.

 “Securities” means the debentures, notes or other debt instruments of the Company of any Series
authenticated and delivered under this Indenture. 
 “Series” or “Series of Securities” means
each series of debentures, notes or other debt instruments of the Company created pursuant to Sections 2.1 and 2.2 hereof. 

“Stated Maturity” when used with respect to any Security, means the date specified in such Security as the fixed date on
which the principal of such Security or interest is due and payable. 
 “Subsidiary” of any specified person
means any corporation, association 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) to vote in the election of directors,

  
 3 

 
managers or trustees thereof is at the time owned or controlled, directly or indirectly, by such person or one or more of the other Subsidiaries of that person or a combination thereof.

 “TIA” means the Trust Indenture Act of 1939 (15 U.S. Code §§ 77aaa-77bbbb) as in effect on the
date of this Indenture; provided, however, that in the event the Trust Indenture Act of 1939 is amended after such date, “TIA” means, to the extent required by any such amendment, the Trust Indenture Act as so amended.

 “Trustee” means the person named as the “Trustee” in the first paragraph of this instrument until
a successor Trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall mean or include each person who is then a Trustee hereunder, and if at any time there is more than one such
person, “Trustee” as used with respect to the Securities of any Series shall mean the Trustee with respect to Securities of that Series. 
 “U.S. Government Obligations” means securities which are direct obligations of, or guaranteed by, The United States of America for the payment of which its full faith and credit is
pledged and which are not callable or redeemable at the option of the issuer thereof, and shall also include a depository receipt issued by a bank or trust company as custodian with respect to any such U.S. Government Obligation or a specific
payment of interest on or principal of any such U.S. Government Obligation held by such custodian for the account of the holder of a depository receipt, provided that (except as required by law) such custodian is not authorized to make any
deduction from the amount payable to the holder of such depository receipt from any amount received by the custodian in respect of the U.S. Government Obligation evidenced by such depository receipt. 

 
 Section 1.2. Other Definitions. 

 

			
	 TERM
	  	DEFINED IN
SECTION
	 “Bankruptcy Law”
	  	6.1
	 “Custodian”
	  	6.1
	 “Event of Default”
	  	6.1
	 “Judgment Currency”
	  	10.16
	 “Legal Holiday”
	  	10.7
	 “mandatory sinking fund payment”
	  	11.1
	 “Market Exchange Rate”
	  	10.15
	 “New York Banking Day”
	  	10.16
	 “Notice Agent”
	  	2.4
	 “optional sinking fund payment”
	  	11.1
	 “Paying Agent”
	  	2.4
	 “Registrar”
	  	2.4
	 “Required Currency”
	  	10.16
	 “successor person”
	  	5.1

 Section 1.3. Incorporation by Reference of Trust Indenture Act. 

  
 4 

 Whenever this Indenture refers to a provision of the TIA, the provision is incorporated by
reference in and made a part of this Indenture. The following TIA terms used in this Indenture have the following meanings: 

“Commission” means the SEC. 
 “indenture securities” means the Securities. 
 “indenture
security holder” means a Securityholder. 
 “indenture to be qualified” means this Indenture.

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

“obligor” on the indenture securities means the Company and any successor obligor upon the Securities. 

All other terms used in this Indenture that are defined by the TIA, defined by TIA reference to another statute or defined by SEC rule
under the TIA and not otherwise defined herein are used herein as so defined. 
 Section 1.4. Rules of
Construction. 
 Unless the context otherwise requires: 

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

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

(c) “or” is not exclusive; 

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

(e) provisions apply to successive events and transactions. 

  
 5 

 ARTICLE II. 
 THE SECURITIES 
 Section 2.1. Issuable in Series. 

The aggregate principal amount of Securities that may be authenticated and delivered under this Indenture is unlimited. The Securities may
be issued in one or more Series. All Securities of a Series shall be identical except as may be set forth or determined in the manner provided in a Board Resolution, a supplemental indenture or an Officer’s Certificate detailing the adoption of
the terms thereof pursuant to authority granted under a Board Resolution. In the case of Securities of a Series to be issued from time to time, the Board Resolution, Officer’s Certificate or supplemental indenture detailing the adoption of the
terms thereof pursuant to authority granted under a Board Resolution may provide for the method by which specified terms (such as interest rate, maturity date, record date or date from which interest shall accrue) are to be determined. Securities
may differ between Series in respect of any matters, provided that all Series of Securities shall be equally and ratably entitled to the benefits of the Indenture. 
 Section 2.2. Establishment of Terms of Series of Securities. 
 At
or prior to the issuance of any Securities within a Series, the following shall be established (as to the Series generally, in the case of Subsection 2.2.1 and either as to such Securities within the Series or as to the Series generally in the case
of Subsections 2.2.2 through 2.2.22) by or pursuant to a Board Resolution, and set forth or determined in the manner provided in a Board Resolution, supplemental indenture hereto or Officer’s Certificate: 

2.2.1. the title (which shall distinguish the Securities of that particular Series from the Securities of any other Series) and
ranking (including the terms of any subordination provisions) of the Series; 
 2.2.2. the price or prices (expressed as a
percentage of the principal amount thereof) at which the Securities of the Series will be issued; 
 2.2.3. any limit upon
the aggregate principal amount of the Securities of the Series which may be authenticated and delivered under this Indenture (except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of,
other Securities of the Series pursuant to Section 2.7, 2.8, 2.11, 3.6 or 9.6); 
 2.2.4. the date or dates on which
the principal of the Securities of the Series is payable; 
 2.2.5. the rate or rates (which may be fixed or variable) per
annum or, if applicable, the method used to determine such rate or rates (including, but not limited to, any commodity, commodity index, stock exchange index or financial index) at which the Securities of the Series shall bear interest, if any, the
date or dates from which such interest, if any, shall accrue, the date or dates on which such interest, if any, shall commence and be payable and any regular record date for the interest payable on any interest payment date; 

  
 6 

 2.2.6. the place or places where the principal of and interest, if any, on the
Securities of the Series shall be payable, where the Securities of such Series may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect of the Securities of such Series and this
Indenture may be delivered, and the method of such payment, if by wire transfer, mail or other means; 
 2.2.7. if
applicable, the period or periods within which, the price or prices at which and the terms and conditions upon which the Securities of the Series may be redeemed, in whole or in part, at the option of the Company; 

2.2.8. the obligation, if any, of the Company to redeem or purchase the Securities of the Series pursuant to any sinking fund or
analogous provisions or at the option of a Holder thereof and the period or periods within which, the price or prices at which and the terms and conditions upon which Securities of the Series shall be redeemed or purchased, in whole or in part,
pursuant to such obligation; 
 2.2.9. the dates, if any, on which and the price or prices at which the Securities of the
Series will be repurchased by the Company at the option of the Holders thereof and other detailed terms and provisions of such repurchase obligations; 
 2.2.10. if other than denominations of $1,000 and any integral multiple thereof, the denominations in which the Securities of the Series shall be issuable; 

2.2.11. the forms of the Securities of the Series and whether the Securities will be issuable as Global Securities; 

2.2.12. if other than the principal amount thereof, the portion of the principal amount of the Securities of the Series that shall
be payable upon declaration of acceleration of the maturity thereof pursuant to Section 6.2; 
 2.2.13. the currency
of denomination of the Securities of the Series, which may be Dollars or any Foreign Currency, and if such currency of denomination is a composite currency, the agency or organization, if any, responsible for overseeing such composite currency;

 2.2.14. the designation of the currency, currencies or currency units in which payment of the principal of and interest,
if any, on the Securities of the Series will be made; 
 2.2.15. if payments of principal of or interest, if any, on the
Securities of the Series are to be made in one or more currencies or currency units other than that or those in which such Securities are denominated, the manner in which the exchange rate with respect to such payments will be determined;

 2.2.16. the manner in which the amounts of payment of principal of or interest, if any, on the Securities of the Series
will be determined, if such amounts may be determined by reference to an index based on a currency or currencies or by reference to a commodity, commodity index, stock exchange index or financial index; 

  
 7 

 2.2.17. the provisions, if any, relating to any security provided for the Securities of
the Series; 
 2.2.18. any addition to, deletion of or change in the Events of Default which applies to any Securities of
the Series and any change in the right of the Trustee or the requisite Holders of such Securities to declare the principal amount thereof due and payable pursuant to Section 6.2; 

2.2.19. any addition to, deletion of or change in the covenants set forth in Articles IV or V which applies to Securities of the
Series; 
 2.2.20. any Depositaries, interest rate calculation agents, exchange rate calculation agents or other agents
with respect to Securities of such Series if other than those appointed herein; 
 2.2.21. the provisions, if any, relating
to conversion or exchange of any Securities of such Series, including if applicable, the conversion or exchange price, the conversion or exchange period, provisions as to whether conversion or exchange will be mandatory, at the option of the Holders
thereof or at the option of the Company, the events requiring an adjustment of the conversion price or exchange price and provisions affecting conversion or exchange if such Series of Securities are redeemed; 

2.2.22. any other terms of the Series (which may supplement, modify or delete any provision of this Indenture insofar as it applies
to such Series), including any terms that may be required under applicable law or regulations or advisable in connection with the marketing of Securities of that Series; and 
 2.2.23. whether any of the Company’s direct or indirect Subsidiaries or any other person will guarantee the Securities of that Series, including the terms of subordination, if any, of such
guarantees. 
 All Securities of any one Series need not be issued at the same time and may be issued from time to time,
consistent with the terms of this Indenture, if so provided by or pursuant to the Board Resolution, supplemental indenture hereto or Officer’s Certificate referred to above. 

Section 2.3. Execution and Authentication. 
 An Officer shall sign the Securities for the Company by manual or facsimile signature. 
 If an Officer whose signature is on a Security no longer holds that office at the time the Security is authenticated, the Security shall nevertheless be valid. 

A Security shall not be valid until authenticated by the manual signature of the Trustee or an authenticating agent. The signature shall
be conclusive evidence that the Security has been authenticated under this Indenture. 

  
 8 

 The Trustee shall at any time, and from time to time, authenticate Securities for original
issue in the principal amount provided in the Board Resolution, supplemental indenture hereto or Officer’s Certificate, upon receipt by the Trustee of a Company Order. Each Security shall be dated the date of its authentication. 

The aggregate principal amount of Securities of any Series outstanding at any time may not exceed any limit upon the maximum principal
amount for such Series set forth in the Board Resolution, supplemental indenture hereto or Officer’s Certificate delivered pursuant to Section 2.2, except as provided in Section 2.8. 

Prior to the issuance of Securities of any Series, the Trustee shall have received and (subject to Section 7.2) shall be fully
protected in relying on: (a) the Board Resolution, supplemental indenture hereto or Officer’s Certificate establishing the form of the Securities of that Series or of Securities within that Series and the terms of the Securities of that
Series or of Securities within that Series, (b) an Officer’s Certificate complying with Section 10.4, and (c) an Opinion of Counsel complying with Section 10.4. 

The Trustee shall have the right to decline to authenticate and deliver any Securities of such Series: (a) if the Trustee, being
advised by counsel, determines that such action may not be taken lawfully; or (b) if the Trustee in good faith by its board of directors or trustees, executive committee or a trust committee of directors and/or vice-presidents or a committee of
Responsible Officers shall determine that such action would expose the Trustee to personal liability to Holders of any then outstanding Series of Securities. 
 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 has the same rights as an Agent to deal with the Company or an Affiliate of the Company. 

Section 2.4. Registrar and Paying Agent. 
 The Company shall maintain, with respect to each Series of Securities, at the place or places specified with respect to such Series pursuant to Section 2.2, an office or agency where Securities of
such Series may be presented or surrendered for payment (“Paying Agent”), where Securities of such Series may be surrendered for registration of transfer or exchange (“Registrar”) and where notices and demands to or
upon the Company in respect of the Securities of such Series and this Indenture may be delivered (“Notice Agent”). The Registrar shall keep a register with respect to each Series of Securities and to their transfer and exchange. The
Company will give prompt written notice to the Trustee of the name and address, and any change in the name or address, of each Registrar, Paying Agent or Notice Agent. If at any time the Company shall fail to maintain any such required Registrar,
Paying Agent or Notice Agent or shall fail to furnish the Trustee with the name and address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee, and the Company hereby
appoints the Trustee as its agent to receive all such presentations, surrenders, notices and demands. 

  
 9 

 The Company may also from time to time designate one or more co-registrars, additional
paying agents or additional notice agents 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 obligations to maintain a
Registrar, Paying Agent and Notice Agent in each place so specified pursuant to Section 2.2 for Securities of any Series for such purposes. The Company will give prompt written notice to the Trustee of any such designation or rescission and of
any change in the name or address of any such co-registrar, additional paying agent or additional notice agent. The term “Registrar” includes any co-registrar; the term “Paying Agent” includes any additional paying
agent; and the term “Notice Agent” includes any additional notice agent. The Company or any of its Affiliates may serve as Registrar or Paying Agent. 
 The Company hereby appoints the Trustee the initial Registrar, Paying Agent and Notice Agent for each Series unless another Registrar, Paying Agent or Notice Agent, as the case may be, is appointed prior
to the time Securities of that Series are first issued. 
 Section 2.5. Paying Agent to Hold Money in Trust.

 The Company shall require each Paying Agent other than the Trustee to agree in writing that the Paying Agent will hold in
trust, for the benefit of Securityholders of any Series of Securities, or the Trustee, all money held by the Paying Agent for the payment of principal of or interest on the Series of Securities, and will notify the Trustee in writing of any default
by the Company in making any such payment. While any such default continues, the Trustee may require a Paying Agent to pay all money held by it to the Trustee. The Company at any time may require a Paying Agent to pay all money held by it to the
Trustee. Upon payment over to the Trustee, the Paying Agent (if other than the Company or a Subsidiary of the Company) shall have no further liability for the money. If the Company or a Subsidiary of the Company acts as Paying Agent, it shall
segregate and hold in a separate trust fund for the benefit of Securityholders of any Series of Securities all money held by it as Paying Agent. Upon any bankruptcy, reorganization or similar proceeding with respect to the Company, the Trustee shall
serve as Paying Agent for the Securities. 
 Section 2.6. Securityholder Lists. 

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 Securityholders of each Series of Securities and shall otherwise comply with TIA § 312(a). If the Trustee is not the Registrar, the Company shall furnish to the Trustee at least ten days 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 Securityholders of each Series of Securities. 

Section 2.7. Transfer and Exchange. 
 Where Securities of a Series are presented to the Registrar or a co-registrar with a request to register a transfer or to exchange them for an equal principal amount of Securities of the same Series, the
Registrar shall register the transfer or make the exchange if its requirements 

  
 10 

 
for such transactions are met. To permit registrations of transfers and exchanges, the Trustee shall authenticate Securities at the Registrar’s request. No service charge shall be made for
any registration of transfer or exchange (except as otherwise expressly permitted herein), but the Company may require payment of a sum sufficient to cover any transfer tax or similar governmental charge payable in connection therewith (other than
any such transfer tax or similar governmental charge payable upon exchanges pursuant to Sections 2.11, 3.6 or 9.6). 
 Neither
the Company nor the Registrar shall be required (a) to issue, register the transfer of, or exchange Securities of any Series for the period beginning at the opening of business fifteen days immediately preceding the mailing of a notice of
redemption of Securities of that Series selected for redemption and ending at the close of business on the day of such mailing, or (b) to register the transfer of or exchange Securities of any Series selected, called or being called for
redemption as a whole or the portion being redeemed of any such Securities selected, called or being called for redemption in part. 
 Section 2.8. Mutilated, Destroyed, Lost and Stolen Securities. 

If any mutilated Security is surrendered to the Trustee, the Company shall execute and the Trustee shall authenticate and deliver in
exchange therefor a new Security of the same Series and of like tenor and principal amount and bearing a number not contemporaneously outstanding. 
 If there shall be delivered to the Company and the Trustee (i) evidence to their satisfaction of the destruction, loss or theft of any Security and (ii) such security or indemnity bond as may be
required by each of them to hold itself and any of its agents harmless, then, in the absence of notice to the Company or the Trustee that such Security has been acquired by a bona fide purchaser, the Company shall execute and upon its request the
Trustee shall authenticate and make available for delivery, in lieu of any such destroyed, lost or stolen Security, a new Security of the same Series and of like tenor and principal amount and bearing a number not contemporaneously outstanding.

 In case any such mutilated, destroyed, lost or stolen Security has become or is about to become due and payable, the Company
in its discretion may, instead of issuing a new Security, pay such Security. 
 Upon the issuance of any new Security under this
Section, the Company may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Trustee) connected therewith.

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

  
 11 

 The provisions of this Section are 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 2.9. Outstanding Securities. 
 The Securities outstanding at any time are all the Securities authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation, those reductions in the interest on a
Global Security effected by the Trustee in accordance with the provisions hereof and those described in this Section as not outstanding. 
 If a Security is replaced pursuant to Section 2.8, it ceases to be outstanding until the Trustee receives proof satisfactory to it that the replaced Security is held by a bona fide purchaser.

 If the Paying Agent (other than the Company, a Subsidiary of the Company or an Affiliate of the Company) holds on the
Maturity of Securities of a Series money sufficient to pay such Securities payable on that date, then on and after that date such Securities of the Series cease to be outstanding and interest on them ceases to accrue. 

The Company may purchase or otherwise acquire the Securities, whether by open market purchases, negotiated transactions or otherwise. A
Security does not cease to be outstanding because the Company or an Affiliate of the Company holds the Security (but see Section 2.10 below). 
 In determining whether the Holders of the requisite principal amount of outstanding Securities have given any request, demand, authorization, direction, notice, consent or waiver hereunder, the principal
amount of a Discount Security that shall be deemed to be outstanding for such purposes shall be the amount of the principal thereof that would be due and payable as of the date of such determination upon a declaration of acceleration of the Maturity
thereof pursuant to Section 6.2. 
 Section 2.10. Treasury Securities. 

In determining whether the Holders of the required principal amount of Securities of a Series have concurred in any request, demand,
authorization, direction, notice, consent or waiver, Securities of a Series owned by the Company or any Affiliate of the Company shall be disregarded, except that for the purposes of determining whether the Trustee shall be protected in relying on
any such request, demand, authorization, direction, notice, consent or waiver only Securities of a Series that a Responsible Officer of the Trustee knows are so owned shall be so disregarded. 

Section 2.11. Temporary Securities. 
 Until definitive Securities are ready for delivery, the Company may prepare and the Trustee shall authenticate temporary Securities upon a Company Order. Temporary Securities shall be substantially in the
form of definitive Securities but may have variations that the Company considers appropriate for temporary Securities. Without unreasonable delay, the 

  
 12 

 
Company shall prepare and the Trustee upon receipt of a Company Order shall authenticate definitive Securities of the same Series and date of maturity in exchange for temporary Securities. Until
so exchanged, temporary securities shall have the same rights under this Indenture as the definitive Securities. 

Section 2.12. Cancellation. 
 The Company at any time may deliver Securities to the Trustee for cancellation. The Registrar and the Paying Agent shall forward to the Trustee any Securities surrendered to them for registration of
transfer, exchange or payment. The Trustee shall cancel all Securities surrendered for transfer, exchange, payment, replacement or cancellation and shall destroy such canceled Securities (subject to the record retention requirement of the Exchange
Act and the Trustee) and deliver a certificate of such cancellation to the Company upon written request of the Company. The Company may not issue new Securities to replace Securities that it has paid or delivered to the Trustee for cancellation.

 Section 2.13. Defaulted Interest. 
 If the Company defaults in a payment of interest on a Series of Securities, it shall pay the defaulted interest, plus, to the extent permitted by law, any interest payable on the defaulted interest, to
the persons who are Securityholders of the Series on a subsequent special record date. The Company shall fix the record date and payment date. At least 10 days before the special record date, the Company shall mail to the Trustee and to each
Securityholder of the Series a notice that states the special record date, the payment date and the amount of interest to be paid. The Company may pay defaulted interest in any other lawful manner. 

Section 2.14. Global Securities. 
 2.14.1. Terms of Securities. A Board Resolution, a supplemental indenture hereto or an Officer’s Certificate shall establish whether the Securities of a Series shall be issued in whole or
in part in the form of one or more Global Securities and the Depositary for such Global Security or Securities. 

2.14.2. Transfer and Exchange. Notwithstanding any provisions to the contrary contained in Section 2.7 of the Indenture
and in addition thereto, any Global Security shall be exchangeable pursuant to Section 2.7 of the Indenture for Securities registered in the names of Holders other than the Depositary for such Security or its nominee only if (i) such
Depositary notifies the Company that it is unwilling or unable to continue as Depositary for such Global Security or if at any time such Depositary ceases to be a clearing agency registered under the Exchange Act, and, in either case, the Company
fails to appoint a successor Depositary registered as a clearing agency under the Exchange Act within 90 days of such event, (ii) the Company executes and delivers to the Trustee an Officer’s Certificate to the effect that such Global
Security shall be so exchangeable, (iii) an Event of Default shall have occurred and be continuing and owners of beneficial interests in the Global Security in an amount not less than a majority of the aggregate principal amount of such Global
Security have delivered to the Company and the Trustee a notice indicating that the continuing of the book-entry system through DTC is no longer in the best interest of the holders of such beneficial interests or (iv) the

  
 13 

 
Company and a holder of a beneficial interest in a Global Security otherwise agree. Any Global Security that is exchangeable pursuant to the preceding sentence shall be exchangeable for
Securities registered in such names as the Depositary shall direct in writing in an aggregate principal amount equal to the principal amount of the Global Security with like tenor and terms. 

Except as provided in this Section 2.14.2, a Global Security may not be transferred except as a whole by the Depositary with respect
to such Global Security to a nominee of such Depositary, by a nominee of such Depositary to such Depositary or another nominee of such Depositary or by the Depositary or any such nominee to a successor Depositary or a nominee of such a successor
Depositary. 
 2.14.3. Legends. Any Global Security issued hereunder shall bear a legend in substantially the
following form: 
 “THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS
REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. 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 MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY, 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 A SUCCESSOR DEPOSITARY.” 
 In addition, so long as the Depository Trust Company
(“DTC”) is the Depositary, each Global Note registered in the name of DTC or its nominee shall bear a legend in substantially the following form: 
 “UNLESS THIS GLOBAL NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF
TRANSFER, EXCHANGE OR PAYMENT, AND ANY GLOBAL NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER
ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.”

 2.14.4. Acts of Holders. The Depositary, as a Holder, may appoint agents and otherwise authorize participants to
give or take any request, demand, authorization, direction, notice, consent, waiver or other action which a Holder is entitled to give or take under the Indenture. 

  
 14 

 2.14.5. Payments. Notwithstanding the other provisions of this Indenture, unless
otherwise specified as contemplated by Section 2.2, payment of the principal of and interest, if any, on any Global Security shall be made to the Holder thereof. 
 2.14.6. Consents, Declaration and Directions. The Company, the Trustee and any Agent shall treat a person as the Holder of such principal amount of outstanding Securities of such Series
represented by a Global Security as shall be specified in a written statement of the Depositary or by the applicable procedures of such Depositary with respect to such Global Security, for purposes of obtaining any consents, declarations, waivers or
directions required to be given by the Holders pursuant to this Indenture. 
 Section 2.15. CUSIP Numbers.

 The Company in issuing the Securities may use “CUSIP” numbers (if then generally in use), and, if so, the Trustee
shall use “CUSIP” numbers in notices of redemption 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 and that reliance may be placed only on the other elements of identification printed on the Securities, and any such redemption shall not be affected by any defect in or omission of such numbers. 

ARTICLE III. 

REDEMPTION 

Section 3.1. Notice to Trustee. 
 The Company may, with respect to any Series of Securities, reserve the right to redeem and pay the Series of Securities or may covenant to redeem and pay the Series of Securities or any part thereof prior
to the Stated Maturity thereof at such time and on such terms as provided for in such Securities. If a Series of Securities is redeemable and the Company wants or is obligated to redeem prior to the Stated Maturity thereof all or part of the Series
of Securities pursuant to the terms of such Securities, it shall notify the Trustee in writing of the redemption date and the principal amount of Series of Securities to be redeemed. The Company shall give the notice at least 15 days before the
redemption date, unless a shorter period is acceptable to the Trustee. 
 Section 3.2. Selection of Securities to
be Redeemed. 
 Unless otherwise indicated for a particular Series by a Board Resolution, a supplemental indenture hereto or
an Officer’s Certificate, if less than all the Securities of a Series are to be redeemed, the Trustee shall select the Securities of the Series to be redeemed in any manner that the Trustee deems fair and appropriate, including by lot or other
method, unless otherwise required by law or applicable stock exchange requirements, subject, in the case of Global Securities, to the applicable rules and procedures of the Depositary. The Trustee shall make the selection from Securities of the
Series outstanding not previously called for redemption. The Trustee may select for redemption portions of the principal of Securities of the 

  
 15 

 
Series that have denominations larger than $1,000. Securities of the Series and portions of them it selects shall be in amounts of $1,000 or whole multiples of $1,000 or, with respect to
Securities of any Series issuable in other denominations pursuant to Section 2.2.10, the minimum principal denomination for each Series and the authorized integral multiples thereof. Provisions of this Indenture that apply to Securities of a
Series called for redemption also apply to portions of Securities of that Series called for redemption. 

Section 3.3. Notice of Redemption. 
 Unless otherwise indicated for a particular Series by Board Resolution, a supplemental indenture hereto or an Officer’s Certificate, at least 15 days but not more than 60 days before a redemption
date, the Company shall mail a notice of redemption by first-class mail to each Holder whose Securities are to be redeemed. 

The notice shall identify the Securities of the Series to be redeemed and shall state: 

(a) the redemption date; 
 (b) the redemption price; 
 (c) the name and address of
the Paying Agent; 
 (d) if any Securities are being redeemed in part, the portion of the principal amount
of such Securities to be redeemed and that, after the redemption date and upon surrender of such Security, a new Security or Securities in principal amount equal to the unredeemed portion of the original Security shall be issued in the name of the
Holder thereof upon cancellation of the original Security; 
 (e) that Securities of the Series called for
redemption must be surrendered to the Paying Agent to collect the redemption price; 
 (f) that interest on
Securities of the Series called for redemption ceases to accrue on and after the redemption date unless the Company defaults in the deposit of the redemption price; 

(g) the CUSIP number, if any; and 

(h) any other information as may be required by the terms of the particular Series or the Securities of a Series
being redeemed. 
 At the Company’s request, the Trustee shall give the notice of redemption in the Company’s name and
at its expense, provided, however, that the Company has delivered to the Trustee, at least 10 days (unless a shorter time shall be acceptable to the Trustee) prior to the notice date, an Officer’s Certificate requesting that the Trustee give
such notice and setting forth the information to be stated in such notice. 

  
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 Section 3.4. Effect of Notice of Redemption. 

Once notice of redemption is mailed as provided in Section 3.3, Securities of a Series called for redemption become due and payable
on the redemption date and at the redemption price. Except as otherwise provided in the supplemental indenture, Board Resolution or Officer’s Certificate for a Series, a notice of redemption may not be conditional. Upon surrender to the Paying
Agent, such Securities shall be paid at the redemption price plus accrued interest to the redemption date. 

Section 3.5. Deposit of Redemption Price. 
 On or before 11:00 a.m., New York City time, on the redemption date, the Company shall deposit with the Paying Agent money sufficient to pay the redemption price of and accrued interest, if any, on all
Securities to be redeemed on that date. 
 Section 3.6. Securities Redeemed in Part. 

Upon surrender of a Security that is redeemed in part, the Trustee shall authenticate for the Holder a new Security of the same Series and
the same maturity equal in principal amount to the unredeemed portion of the Security surrendered. 
 ARTICLE IV. 

COVENANTS 

Section 4.1. Payment of Principal and Interest. 
 The Company covenants and agrees for the benefit of the Holders of each Series of Securities that it will duly and punctually pay the principal of and interest, if any, on the Securities of that Series in
accordance with the terms of such Securities and this Indenture. On or before 11:00 a.m., New York City time, on the applicable payment date, the Company shall deposit with the Paying Agent money sufficient to pay the principal of and interest, if
any, on the Securities of each Series in accordance with the terms of such Securities and this Indenture. 

Section 4.2. SEC Reports. 
 The Company will furnish to the Trustee within 30 days after it files them with the SEC, copies of the Company’s annual report and the information, documents and other reports (or copies of such
portions of any of the foregoing as the SEC may by rules and regulations prescribe) that the Company is required to file with the SEC pursuant to Sections 13 and 15(d) of the Exchange Act. Reports, information and documents filed by the Company with
the SEC via the EDGAR system will be deemed to have been furnished to the Trustee as of the time such documents are filed via EDGAR. Delivery of any reports, information and documents to the Trustee will be for informational purposes only, and the
Trustee’s receipt thereof 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 under this Indenture
or documents related thereto. 

  
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 Section 4.3. Compliance Certificate. 

To the extent any Securities of a Series are outstanding, the Company shall deliver to the Trustee, within 120 days after the end of each
fiscal year of the Company, an Officer’s Certificate stating that a review of the activities of the Company and its Subsidiaries during the preceding fiscal year has been made under the supervision of the signing Officers with a view to
determining whether the Company has kept, observed, performed and fulfilled its obligations under this Indenture, and further stating, as to each such Officer signing such certificate, that to the best of his/her knowledge the Company has kept,
observed, performed and fulfilled each and every covenant contained in this Indenture and is not in default in the performance or observance of any of the terms, provisions and conditions hereof (or, if a Default or Event of Default shall have
occurred, describing all such Defaults or Events of Default of which the Officer may have knowledge). 

Section 4.4. Stay, Extension and Usury Laws. 
 The Company covenants (to the extent that it may lawfully do so) that it will 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 wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of this Indenture or the Securities; 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
has been enacted. 
 Section 4.5. Corporate Existence. 

Subject to Article V, the Company will do or cause to be done all things necessary to preserve and keep in full force and effect its
corporate existence and rights (charter and statutory); provided, however, that the Company shall not be required to preserve any such right if the Board of Directors shall determine that the preservation thereof is no longer desirable in the
conduct of the business of the Company and its Subsidiaries taken as a whole and that the loss thereof is not adverse in any material respect to the Holders. 
 ARTICLE V. 
 SUCCESSORS 

Section 5.1. When Company May Merge, Etc. 
 The Company shall not consolidate with or merge with or into, or convey, transfer or lease all or substantially all of its properties and assets to, any person (a “successor person”)
unless: 
 (a) the Company is the surviving corporation or the successor person (if other than the Company)
is a corporation organized and validly existing under the laws of any U.S. domestic jurisdiction and expressly assumes the Company’s obligations on the Securities and under this Indenture; and 

(b) immediately after giving effect to the transaction, no Default or Event of Default, shall have occurred and be
continuing. 

  
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 The Company shall deliver to the Trustee prior to the consummation of the proposed foregoing
transaction an Officer’s Certificate to the foregoing effect and an Opinion of Counsel stating that the proposed transaction and any supplemental indenture comply with this Indenture. 

Notwithstanding the above, any Subsidiary of the Company may consolidate with, merge into or transfer all or part of its properties to
the Company. Neither an Officer’s Certificate nor an Opinion of Counsel shall be required to be delivered in connection therewith. 
 Section 5.2. Successor Corporation Substituted. 
 Upon any
consolidation or merger, or any sale, lease, conveyance or other disposition of all or substantially all of the assets of the Company in accordance with Section 5.1, the successor corporation formed by such consolidation or into or with which
the Company is merged or to which such sale, lease, conveyance or other disposition 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 has been named as the Company herein; provided, however, that the predecessor Company in the case of a sale, conveyance or other disposition (other than a lease) shall be released from all obligations and covenants
under this Indenture and the Securities. 
 ARTICLE VI. 
 DEFAULTS AND REMEDIES 
 Section 6.1. Events of Default.

 “Event of Default,” wherever used herein with respect to Securities of any Series, means any one of the
following events, unless in the establishing Board Resolution, supplemental indenture or Officer’s Certificate, it is provided that such Series shall not have the benefit of said Event of Default: 

(a) default in the payment of any interest on any Security of that Series when it becomes due
and payable, and continuance of such default for a period of 30 days (unless the entire amount of such payment is deposited by the Company with the Trustee or with a Paying Agent prior to 11:00 a.m., New York City time, on the 30th day of such period); or 

(b) default in the payment of principal of any Security of that Series at its Maturity; or 

(c) default in the performance or breach of any covenant or warranty of the Company in this Indenture (other than
defaults pursuant to paragraphs (a) or (b) above or pursuant to a covenant or warranty that has been included in this Indenture solely for the benefit of Series of Securities other than that Series), which default continues uncured for a
period of 60 days after there has been given, by registered or certified mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the outstanding Securities of that Series a written
notice 

  
 19 

 
specifying such default or breach and requiring it to be remedied and stating that such notice is a “Notice of Default” hereunder; or 

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

(i) commences a voluntary case, 
 (ii) consents to the entry of an order for relief against it in an involuntary case, 
 (iii) consents to the appointment of a Custodian of it or for all or substantially all of its property, 
 (iv) makes a general assignment for the benefit of its creditors, or 
 (v) generally is unable to pay its debts as the same become due; or 

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

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

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

(iii) orders the liquidation of the Company, 
 and the order or decree remains unstayed and in effect for 60 days; or 
 (f) any other Event of Default provided with respect to Securities of that Series, which is specified in a Board Resolution, a supplemental indenture hereto or an Officer’s Certificate, in
accordance with Section 2.2.18. 
 The term “Bankruptcy Law” means title 11, U.S. Code or any similar
Federal or State law for the relief of debtors. The term “Custodian” means any receiver, trustee, assignee, liquidator or similar official under any Bankruptcy Law. 

The Company will provide the Trustee written of notice of any Default or Event of Default within 30 days of becoming aware of the
occurrence of such Default or Event of Default, which notice will describe in reasonable detail the status of such Default or Event of Default and what action the Company is taking or proposes to take in respect thereof. 

Section 6.2. Acceleration of Maturity; Rescission and Annulment. 

If an Event of Default with respect to Securities of any Series at the time outstanding occurs and is continuing (other than an Event of
Default referred to in Section 6.1(d) or (e)) then in every such case the Trustee or the Holders of not less than 25% in principal amount of the outstanding Securities of that Series may declare the principal amount (or, if any Securities of
that Series are Discount Securities, such portion of the principal amount as may be 

  
 20 

 
specified in the terms of such Securities) of and accrued and unpaid interest, if any, on all of the Securities of that Series to be due and payable immediately, by a notice in writing to the
Company (and to the Trustee if given by Holders), and upon any such declaration such principal amount (or specified amount) and accrued and unpaid interest, if any, shall become immediately due and payable. If an Event of Default specified in
Section 6.1(d) or (e) shall occur, the principal amount (or specified amount) of and accrued and unpaid interest, if any, on all outstanding Securities shall ipso facto become and be immediately due and payable without any
declaration or other act on the part of the Trustee or any Holder. 
 At any time after such a declaration of acceleration with
respect to any Series has been made and before a judgment or decree for payment of the money due has been obtained by the Trustee as hereinafter in this Article provided, the Holders of a majority in principal amount of the outstanding Securities of
that Series, by written notice to the Company and the Trustee, may rescind and annul such declaration and its consequences if all Events of Default with respect to Securities of that Series, other than the non-payment of the principal and interest,
if any, of Securities of that Series which have become due solely by such declaration of acceleration, have been cured or waived as provided in Section 6.13. 
 No such rescission shall affect any subsequent Default or impair any right consequent thereon. 
 Section 6.3. Collection of Indebtedness and Suits for Enforcement by Trustee. 
 The Company covenants that if 
 (a) default is made in the
payment of any interest on any Security when such interest becomes due and payable and such default continues for a period of 30 days, or 
 (b) default is made in the payment of principal of any Security at the Maturity thereof, or 
 (c) default is made in the deposit of any sinking fund payment, if any, when and as due by the terms of a Security, 
 then, the Company will, upon demand of the Trustee, pay to it, for the benefit of the Holders of such Securities, the whole amount then due and payable on such Securities for principal and interest
and, to the extent that payment of such interest shall be legally enforceable, interest on any overdue principal and any overdue interest at the rate or rates prescribed therefor in such Securities, and, in addition thereto, 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. 

If the Company fails to pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may
institute a judicial proceeding for the collection of the sums so due and unpaid, may prosecute such proceeding to judgment or final decree and may enforce the same against the Company or any other obligor upon such Securities and collect the moneys
adjudged or deemed to be payable in the manner provided by 

  
 21 

 
law out of the property of the Company or any other obligor upon such Securities, wherever situated. 
 If an Event of Default with respect to any Securities of any Series occurs and is continuing, the Trustee may in its discretion proceed to protect and enforce its rights and the rights of the Holders of
Securities of such Series by such appropriate judicial proceedings as the Trustee shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy. 
 Section 6.4. Trustee May File
Proofs of Claim. 
 In case of the pendency of any receivership, insolvency, liquidation, bankruptcy, reorganization,
arrangement, adjustment, composition or other judicial proceeding relative to the Company or any other obligor upon the Securities or the property of the Company or of such other obligor or their creditors, the Trustee (irrespective of whether the
principal of the Securities shall then be due and payable as therein expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made any demand on the Company for the payment of overdue principal or interest) shall
be entitled and empowered, by intervention in such proceeding or otherwise, 
 (a) to file and prove a claim
for the whole amount of principal and interest owing and unpaid in respect of the Securities and to file such 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 of the Holders allowed in such judicial proceeding, and 

(b) to collect and receive any moneys or other property payable or deliverable on any such claims and to distribute
the same, 
 and any custodian, receiver, assignee, trustee, liquidator, sequestrator or other similar official 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 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 7.7. 
 Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition
affecting 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 6.5. Trustee May Enforce Claims Without Possession of Securities. 
 All rights of action and claims under this Indenture or the Securities may be prosecuted and enforced by the Trustee without the possession of any of the Securities or the production thereof in any
proceeding relating thereto, and any such proceeding instituted by the 

  
 22 

 
Trustee shall be brought in its own name as trustee of an express trust, and any recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders of the Securities in respect of which such judgment has been recovered. 

Section 6.6. Application of Money Collected. 
 Any money or property collected by the Trustee pursuant to this Article shall be applied in the following order, at the date or dates fixed by the Trustee and, in case of the distribution of such money or
property on account of principal or interest, upon presentation of the Securities and the notation thereon of the payment if only partially paid and upon surrender thereof if fully paid: 

First: To the payment of all amounts due the Trustee under Section 7.7; and 

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

Third: To the Company. 
 Section 6.7. Limitation on Suits. 
 No Holder of any Security of
any Series shall have any right to institute any proceeding, judicial or otherwise, with respect to this Indenture, or for the appointment of a receiver or trustee, or for any other remedy hereunder, unless 

(a) such Holder has previously given written notice to the Trustee of a continuing Event of Default with respect to
the Securities of that Series; 
 (b) the Holders of not less than 25% in principal amount of the
outstanding Securities of that Series shall have made written request to the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee hereunder; 

(c) such Holder or Holders have offered to the Trustee indemnity or security satisfactory to the Trustee against the
costs, expenses and liabilities which might be incurred by the Trustee in compliance with such request; 

(d) the Trustee for 60 days after its receipt of such notice, request and offer of indemnity has failed to institute
any such proceeding; and 
 (e) 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 principal amount of the outstanding Securities of that Series; 

  
 23 

 it being understood, intended and expressly covenanted by the Holder of every Security with every other
Holder and the Trustee that no one or more of such Holders shall have any right in any manner whatever by virtue of, or by availing of, any provision of this Indenture to affect, disturb or prejudice the rights of any other of such Holders, or to
obtain or to seek to obtain priority or preference over any other of such Holders or to enforce any right under this Indenture, except in the manner herein provided and for the equal and ratable benefit of all such Holders of the applicable Series.

 Section 6.8. Unconditional Right of Holders to Receive Principal and Interest. 

Notwithstanding any other provision in this Indenture, the Holder of any Security shall have the right, which is absolute and
unconditional, to receive payment of the principal of and interest, if any, on such Security on the Maturity of such Security, including the Stated Maturity expressed in such Security (or, in the case of redemption, on the redemption date) and to
institute suit for the enforcement of any such payment, and such rights shall not be impaired without the consent of such Holder. 
 Section 6.9. Restoration of Rights and Remedies. 
 If the Trustee
or any Holder has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has been discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in
every such case, subject to any determination in such proceeding, the Company, the Trustee and the Holders shall be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of the Trustee and the
Holders shall continue as though no such proceeding had been instituted. 
 Section 6.10. Rights and Remedies
Cumulative. 
 Except as otherwise provided with respect to the replacement or payment of mutilated, destroyed, lost or
stolen Securities in Section 2.8, no right or remedy herein conferred upon or reserved to the Trustee or to the Holders is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law,
be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not, to the extent
permitted by law, prevent the concurrent assertion or employment of any other appropriate right or remedy. 

Section 6.11. Delay or Omission Not Waiver. 
 No delay or omission of the Trustee or of any Holder of any Securities to exercise any right or remedy accruing upon any Event of Default shall impair any such right or remedy or constitute a waiver of
any such Event of Default or an acquiescence therein. Every right and remedy given by this Article or by law to the Trustee or to the Holders may be exercised from time to time, and as often as may be deemed expedient, by the Trustee or by the
Holders, as the case may be. 

  
 24 

 Section 6.12. Control by Holders. 

The Holders of a majority in principal amount of the outstanding Securities of any Series shall have the right to direct the time, method
and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred on the Trustee, with respect to the Securities of such Series, provided that 

(a) such direction shall not be in conflict with any rule of law or with this Indenture, 

(b) the Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such direction,

 (c) subject to the provisions of Section 6.1, the Trustee shall have the right to decline to follow
any such direction if the Trustee in good faith shall, by a Responsible Officer of the Trustee, determine that the proceeding so directed would involve the Trustee in personal liability, and 

(d) prior to taking any action as directed under this Section 6.12, the Trustee shall be entitled to indemnity
satisfactory to it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction. 
 Section 6.13. Waiver of Past Defaults. 
 By notice to the Trustee,
the Holders of a majority in aggregate principal amount of the Securities of the applicable Series then outstanding may waive an existing Default and its consequences except (i) a Default in the payment of the principal amount of, premium, if
any, and accrued and unpaid interest on the Securities of the applicable Series, (ii) a Default arising from the failure to redeem or purchase any Security when required pursuant to the terms of the Indenture or (iii) a Default in respect
of a provision that under the Indenture cannot be amended without the consent of each Holder of the Securities affected. Further, the Holders of a majority in principal amount of the Securities of the applicable Series by notice to the Trustee may
rescind an acceleration of the Securities of the applicable Series and its consequences if the rescission would not conflict with any judgment or decree and if all existing Events of Default with respect to the Securities of the applicable Series
have been cured or waived, except nonpayment of the principal amount of, and accrued and unpaid interest on, the Securities of the applicable Series that have become due solely because of acceleration. 

Section 6.14. Undertaking for Costs. 
 All parties to this Indenture agree, and each Holder of any Security by his acceptance thereof shall be deemed to have agreed, that any court may in its discretion require, in any suit for the enforcement
of any right or remedy under this Indenture, or in any suit against the Trustee for any action taken, suffered or omitted by it as Trustee, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit, and that such
court may in its discretion assess reasonable costs, including reasonable attorneys’ fees, against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; but the
provisions of this Section shall not apply to any suit instituted by the 

  
 25 

 
Company, to any suit instituted by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the outstanding Securities
of any Series, or to any suit instituted by any Holder for the enforcement of the payment of the principal of or interest on any Security on or after the Maturity of such Security, including the Stated Maturity expressed in such Security (or, in the
case of redemption, on the redemption date). 
 ARTICLE VII. 

TRUSTEE 

Section 7.1. Duties of Trustee. 
 (a) If an Event of Default has occurred and is continuing, the Trustee shall exercise the rights and powers vested in it by this Indenture and use the same degree of care and skill in their exercise
as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs. 
 (b) Except during the continuance of an Event of Default: 

(i) The Trustee need perform only those duties that are specifically set forth in this Indenture and no others.

 (ii) 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 Officer’s Certificates or Opinions of Counsel furnished to the Trustee and conforming to the requirements of this Indenture; however, in the case of any such
Officer’s Certificates or Opinions of Counsel which by any provisions hereof are specifically required to be furnished to the Trustee, the Trustee shall examine such Officer’s Certificates and Opinions of Counsel to determine whether or
not they conform to the form requirements of this Indenture. 
 (c) The Trustee may not be relieved from
liability for its own negligent action, its own negligent failure to act or its own willful misconduct, except that: 
 (i) This paragraph does not limit the effect of paragraph (b) of this Section. 
 (ii) The Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer, unless it is proved that the Trustee was negligent in ascertaining the pertinent facts.

 (iii) The Trustee shall not be liable with respect to any action taken, suffered or omitted to be taken by it
with respect to Securities of any Series in good faith in accordance with the direction of the Holders of a majority in principal amount of the outstanding Securities of such Series relating to the time, method and place of conducting any proceeding
for any remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this 

  
 26 

 
Indenture with respect to the Securities of such Series in accordance with Section 6.12. 
 (d) Every provision of this Indenture that in any way relates to the Trustee is subject to paragraph (a), (b) and (c) of this Section. 

(e) The Trustee may refuse to perform any duty or exercise any right or power unless it receives indemnity
satisfactory to it against the costs, expenses and liabilities which might be incurred by it in performing such duty or exercising such right or power. 
 (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. 
 (g) No provision of this Indenture shall require
the Trustee to risk its own funds or otherwise incur any financial liability in the performance of any of its duties, or in the exercise of any of its rights or powers, if adequate indemnity against such risk is not assured to the Trustee in its
satisfaction. 
 (h) The Paying Agent, the Registrar and any authenticating agent shall be entitled to the
protections and immunities as are set forth in paragraphs (e), (f) and (g) of this Section and in Section 7.2, each with respect to the Trustee. 
 Section 7.2. Rights of Trustee. 
 (a) The
Trustee may rely on and shall be protected in acting or refraining from acting upon any document (whether in its original or facsimile form) 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. 
 (b) Before the Trustee acts or refrains from
acting, it may require an Officer’s Certificate or an Opinion of Counsel or both. The Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on such Officer’s Certificate or Opinion of Counsel.

 (c) The Trustee may act through agents and shall not be responsible for the misconduct or negligence of
any agent appointed with due care. No Depositary shall be deemed an agent of the Trustee and the Trustee shall not be responsible for any act or omission by any Depositary. 

(d) The Trustee shall not be 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, provided that the Trustee’s conduct does not constitute willful misconduct or negligence. 
 (e) The Trustee may consult with counsel and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection in respect of any action taken, suffered or
omitted by it hereunder without willful misconduct or negligence, and in reliance thereon. 

  
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 (f) The Trustee shall be under no obligation to exercise any of the
rights or powers vested in it by this Indenture at the request or direction of any of the Holders of Securities unless such Holders shall have offered to the Trustee security or indemnity satisfactory to it against the costs, expenses and
liabilities which might be incurred by it in compliance with such request or direction. 
 (g) 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. 
 (h) The Trustee shall not be deemed to have notice of any Default or Event of Default unless a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any event
which is in fact such a default is received by the Trustee at the Corporate Trust Office of the Trustee, and such notice references the Securities generally or the Securities of a particular Series and this Indenture. 

(i) In no event shall the Trustee be liable to any person for special, punitive, indirect, consequential or
incidental 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. 

(j) The permissive right of the Trustee to take the actions permitted by this Indenture shall not be construed as an
obligation or duty to do so. 
 Section 7.3. 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. The Trustee is also subject to Sections 7.10 and 7.11. 

Section 7.4. Trustee’s Disclaimer. 
 The Trustee makes no representation as to the validity or adequacy of this Indenture or the Securities, 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 authentication. 
 Section 7.5. Notice
of Defaults. 
 If a Default or Event of Default occurs and is continuing with respect to the Securities of any Series and if
it is known to a Responsible Officer of the Trustee, the Trustee shall mail to each Securityholder of the Securities of that Series notice of a Default or Event of Default within 90 days after it occurs or, if later, after a Responsible Officer of
the Trustee has knowledge of such Default or Event of Default. Except in the case of a Default or Event of Default in payment of principal of or interest on any Security of any Series, the Trustee may

  
 28 

 
withhold the notice if and so long as its corporate trust committee or a committee of its Responsible Officers in good faith determines that withholding the notice is in the interests of
Securityholders of that Series. 
 Section 7.6. Reports by Trustee to Holders. 

Within 60 days after each anniversary of the date of this Indenture, the Trustee shall transmit by mail to all Securityholders, as their
names and addresses appear on the register kept by the Registrar, a brief report dated as of such anniversary date, in accordance with, and to the extent required under, TIA § 313. 

A copy of each report at the time of its mailing to Securityholders of any Series shall be filed with the SEC and each national
securities exchange on which the Securities of that Series are listed. The Company shall promptly notify the Trustee in writing when Securities of any Series are listed on any national securities exchange. 

Section 7.7. Compensation and Indemnity. 
 The Company shall pay to the Trustee from time to time compensation for its services as the Company and the Trustee shall from time to time agree upon in writing. The Trustee’s compensation shall not
be limited by any law on compensation of a trustee of an express trust. The Company shall reimburse the Trustee upon request for all reasonable out of pocket expenses incurred by it. Such expenses shall include the reasonable compensation and
expenses of the Trustee’s agents and counsel. 
 The Company shall indemnify each of the Trustee and any predecessor
Trustee (including the cost of defending itself) and hold it harmless against any cost, expense or liability, including taxes (other than taxes based upon, measured by or determined by the income of the Trustee) incurred by it except as set forth in
the next paragraph in the performance of its duties under this Indenture as Trustee or Agent. The Trustee shall notify the Company promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Company shall not
relieve the Company of its obligations hereunder, unless and to the extent that the Company is materially prejudiced thereby. The Company shall defend the claim and the Trustee shall cooperate in the defense. The Trustee may have one separate
counsel and the Company shall pay the reasonable fees and expenses of such counsel. The Company need not pay for any settlement made without its consent, which consent will not be unreasonably withheld. This indemnification shall apply to officers,
directors, employees, shareholders and agents of the Trustee. 
 The Company need not reimburse any expense or indemnify against
any loss or liability incurred by the Trustee or by any officer, director, employee, shareholder or agent of the Trustee through willful misconduct or negligence. 
 To secure the Company’s payment obligations in this Section, the Trustee shall have a lien prior to the Securities of any Series on all money or property held or collected by the Trustee, except that
held in trust to pay principal of and interest on particular Securities of that Series. 

  
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 When the Trustee incurs expenses or renders services after an Event of Default specified in
Section 6.1(d) or (e) 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 7.8. Replacement of Trustee. 
 A resignation or removal of the Trustee and appointment of a successor Trustee shall become effective only upon the successor Trustee’s acceptance of appointment as provided in this Section.

 The Trustee may resign with respect to the Securities of one or more Series by so notifying the Company at least 30 days
prior to the date of the proposed resignation. The Holders of a majority in principal amount of the Securities of any Series may remove the Trustee with respect to that Series by so notifying the Trustee and the Company. The Company may remove the
Trustee with respect to Securities of one or more Series if: 
 (a) the Trustee fails to comply with
Section 7.10; 
 (b) the Trustee is adjudged a bankrupt or an insolvent or an order for relief is
entered with respect to the Trustee under any Bankruptcy Law; 
 (c) a Custodian or public officer takes
charge of the Trustee or its property; or 
 (d) the Trustee becomes incapable of acting. 

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. Within one year after the successor Trustee takes office, the Holders of a majority in principal amount of the then outstanding Securities may appoint a successor Trustee to replace the successor Trustee appointed by the Company.

 If a successor Trustee with respect to the Securities of any one or more Series does not take office within 60 days after the
retiring Trustee resigns or is removed, the retiring Trustee, the Company or the Holders of at least a majority in principal amount of the Securities of the applicable Series may petition any court of competent jurisdiction for the appointment of a
successor Trustee. 
 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 subject to the lien provided for in Section 7.7, 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 with respect to each Series of Securities for which it is acting as Trustee under this Indenture. A successor Trustee shall mail a notice of its
succession to each Securityholder of each such Series. Notwithstanding replacement of the Trustee pursuant to this Section 7.8, the Company’s obligations under Section 7.7 hereof shall continue for the benefit of the retiring Trustee
with respect to expenses and 

  
 30 

 
liabilities incurred by it for actions taken or omitted to be taken in accordance with its rights, powers and duties under this Indenture prior to such replacement. 

Section 7.9. 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 to, another corporation, the successor corporation without any further act
shall be the successor Trustee, subject to Section 7.10. 
 Section 7.10. Eligibility; Disqualification.

 This Indenture shall always have a Trustee who satisfies the requirements of TIA § 310(a)(1), (2) and (5). The
Trustee shall always have a combined capital and surplus of at least $25,000,000 as set forth in its most recent published annual report of condition. The Trustee shall comply with TIA § 310(b). 

Section 7.11. Preferential Collection of Claims Against Company. 

The Trustee is subject to TIA § 311(a), excluding any creditor relationship listed in TIA § 311(b). A Trustee who has resigned
or been removed shall be subject to TIA § 311(a) to the extent indicated. 
 ARTICLE VIII. 

SATISFACTION AND DISCHARGE; DEFEASANCE 
 Section 8.1. Satisfaction and Discharge of Indenture. 
 This
Indenture shall upon Company Order cease to be of further effect (except as hereinafter provided in this Section 8.1), and the Trustee, at the expense of the Company, shall execute instruments acknowledging satisfaction and discharge of this
Indenture, when 
 (a) either 

(i) all Securities theretofore authenticated and delivered (other than Securities that have been destroyed, lost or stolen
and that have been replaced or paid) have been delivered to the Trustee for cancellation; or 
 (ii) all such
Securities not theretofore delivered to the Trustee for cancellation 
 (1) have become due and payable, or

 (2) will become due and payable at their Stated Maturity within one year, or 

(3) have been called for redemption or are to be called for redemption within one year under arrangements satisfactory to
the Trustee 

  
 31 

 
for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company, or 
 (4) are deemed paid and discharged pursuant to Section 8.3, as applicable; 
 and the Company,
in the case of (1), (2) or (3) above, has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust an amount of money or U.S. Government Obligations sufficient for the purpose of paying and discharging the
entire indebtedness on such Securities not theretofore delivered to the Trustee for cancellation, for principal and interest to the date of such deposit (in the case of Securities which have become due and payable on or prior to the date of such
deposit) or to the Stated Maturity or redemption date, as the case may be; 
 (b) the Company has paid or
caused to be paid all other sums payable hereunder by the Company; and 
 (c) the Company has delivered to
the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Indenture have been complied with. 

Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Company to the Trustee under Section 7.7,
and, if money shall have been deposited with the Trustee pursuant to clause (a) of this Section, the provisions of Sections 2.4, 2.7, 2.8, 8.2 and 8.5 shall survive. 
 Section 8.2. Application of Trust Funds; Indemnification. 
 (a) Subject to the provisions of Section 8.5, all money or U.S. Government Obligations deposited with the Trustee pursuant to Section 8.1, all money and U.S. Government Obligations or
Foreign Government Obligations deposited with the Trustee pursuant to Section 8.3 or 8.4 and all money received by the Trustee in respect of U.S. Government Obligations or Foreign Government Obligations deposited with the Trustee pursuant to
Section 8.3 or 8.4, shall be held in trust and applied by it, in accordance with the provisions of the Securities and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as its own Paying
Agent) as the Trustee may determine, to the persons entitled thereto, of the principal and interest for whose payment such money has been deposited with or received by the Trustee or to make mandatory sinking fund payments or analogous payments as
contemplated by Sections 8.3 or 8.4. 
 (b) The Company shall pay and shall indemnify the Trustee against
any tax, fee or other charge imposed on or assessed against U.S. Government Obligations or Foreign Government Obligations deposited pursuant to Sections 8.3 or 8.4 or the interest and principal received in respect of such obligations other than any
payable by or on behalf of Holders. 
 (c) The Trustee shall deliver or pay to the Company from time to time
upon Company Order any U.S. Government Obligations or Foreign Government Obligations 

  
 32 

 
or money held by it as provided in Sections 8.3 or 8.4 which, in the opinion of a nationally recognized firm of independent certified public accountants or investment bank expressed in a written
certification thereof delivered to the Trustee, are then in excess of the amount thereof which then would have been required to be deposited for the purpose for which such U.S. Government Obligations or Foreign Government Obligations or money were
deposited or received. This provision shall not authorize the sale by the Trustee of any U.S. Government Obligations or Foreign Government Obligations held under this Indenture. 

Section 8.3. Legal Defeasance of Securities of any Series. 

Unless this Section 8.3 is otherwise specified, pursuant to Section 2.2, to be inapplicable to Securities of any Series, the
Company shall be deemed to have paid and discharged the entire indebtedness on all the outstanding Securities of any Series on the 91st day after the date of the deposit referred to in subparagraph (d) hereof, and the provisions of this
Indenture, as it relates to such outstanding Securities of such Series, shall no longer be in effect (and the Trustee, at the expense of the Company, shall, upon receipt of a Company Order, execute instruments acknowledging the same), except as to:

 (a) the rights of Holders of Securities of such Series to receive, from the trust funds described in
subparagraph (d) hereof, (i) payment of the principal of and each installment of principal of and interest on the outstanding Securities of such Series on the Maturity of such principal or installment of principal or interest and
(ii) the benefit of any mandatory sinking fund payments applicable to the Securities of such Series on the day on which such payments are due and payable in accordance with the terms of this Indenture and the Securities of such Series;

 (b) the provisions of Sections 2.4, 2.7, 2.8, 8.2, 8.3 and 8.5; and 

(c) the rights, powers, trust and immunities of the Trustee hereunder and the Company’s obligations in
connection therewith; 
 provided that, the following conditions shall have been satisfied: 

(d) the Company shall have deposited or caused to be irrevocably deposited (except as provided in
Section 8.2(c)) with the Trustee as trust funds in trust for the purpose of making the following payments, specifically pledged as security for and dedicated solely to the benefit of the Holders of such Securities (i) in the case of
Securities of such Series denominated in Dollars, cash in Dollars and/or U.S. Government Obligations, or (ii) in the case of Securities of such Series denominated in a Foreign Currency (other than a composite currency), money and/or Foreign
Government Obligations, which through the payment of interest and principal in respect thereof in accordance with their terms, will provide (and without reinvestment and assuming no tax liability will be imposed on such Trustee), not later than one
day before the due date of any payment of money, an amount in cash, sufficient, in the opinion of a nationally recognized firm of independent public accountants or investment bank expressed in a written certification thereof delivered to the
Trustee, to pay and discharge each 

  
 33 

 
installment of principal of and interest, if any, on and any mandatory sinking fund payments in respect of all the Securities of such Series on the dates such installments of interest or
principal and such sinking fund payments are due; 
 (e) such defeasance will not result in a breach or
violation of, or constitute a default under, this Indenture or any other agreement or instrument to which the Company is a party or by which it is bound; 
 (f) No Event of Default shall have occurred and be continuing either: (x) on the date of such deposit (other than an Event of Default resulting from the borrowing of funds to be applied to such
deposit); or (y) with respect to Events of Default described in Section 6.1(d) and (e) or other bankruptcy, insolvency or reorganization-related Events of Default, at any time in the period ending on the 91st day after the date of
deposit; 
 (g) the Company shall have delivered to the Trustee an Officer’s Certificate and an Opinion
of Counsel to the effect that (i) the Company has received from, or there has been published by, the Internal Revenue Service a ruling, or (ii) since the date of execution of this Indenture, there has been a change in the applicable
Federal income tax law, in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, the Holders of the Securities of such Series will not recognize income, gain or loss for Federal income tax purposes as a result
of such deposit, defeasance and discharge and will be subject to Federal income tax on the same amount and in the same manner and at the same times as would have been the case if such deposit, defeasance and discharge had not occurred; 

(h) the Company shall have delivered to the Trustee an Officer’s Certificate stating that the deposit was not
made by the Company with the intent of defeating, hindering, delaying or defrauding any other creditors of the Company; and 
 (i) the Company shall have delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions precedent provided for relating to the defeasance
contemplated by this Section have been complied with. 
 Section 8.4. Covenant Defeasance. 

Unless this Section 8.4 is otherwise specified pursuant to Section 2.2 to be inapplicable to Securities of any Series, the
Company may omit to comply with respect to the Securities of any Series with any term, provision or condition set forth under Sections 4.2, 4.3, 4.4, 4.5, and 5.1 as well as any additional covenants specified in a supplemental indenture for such
Series of Securities or a Board Resolution or an Officer’s Certificate delivered pursuant to Section 2.2 (and the failure to comply with any such covenants shall not constitute a Default or Event of Default with respect to such Series
under Section 6.1) and the occurrence of any event specified in a supplemental indenture for such Series of Securities or a Board Resolution or an Officer’s Certificate delivered pursuant to Section 2.2.18 and designated as an Event
of Default shall not constitute a Default or Event of Default hereunder, with respect to the Securities of such Series, provided that the following conditions shall have been satisfied: 

  
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 (a) With reference to this Section 8.4, the Company has deposited
or caused to be irrevocably deposited (except as provided in Section 8.2(c)) with the Trustee as trust funds in trust for the purpose of making the following payments specifically pledged as security for, and dedicated solely to, the benefit of
the Holders of such Securities (i) in the case of Securities of such Series denominated in Dollars, cash in Dollars and/or U.S. Government Obligations, or (ii) in the case of Securities of such Series denominated in a Foreign Currency
(other than a composite currency), money and/or Foreign Government Obligations, which through the payment of interest and principal in respect thereof in accordance with their terms, will provide (and without reinvestment and assuming no tax
liability will be imposed on such Trustee), not later than one day before the due date of any payment of money, an amount in cash, sufficient, in the opinion of a nationally recognized firm of independent certified public accountants or investment
bank expressed in a written certification thereof delivered to the Trustee, to pay and discharge each installment of principal of and interest, if any, on and any mandatory sinking fund payments in respect of the Securities of such Series on the
dates such installments of interest or principal and such sinking fund payments are due; 
 (b) Such
covenant defeasance will not result in a breach or violation of, or constitute a default under, this Indenture or any other agreement or instrument to which the Company is a party or by which it is bound; 

(c) No Event of Default shall have occurred and be continuing either: (x) on the date of such deposit (other
than an Event of Default resulting from the borrowing of funds to be applied to such deposit); or (y) with respect to Events of Default described in Section 6.1(d) and (e) or other bankruptcy, insolvency or reorganization-related
Events of Default, at any time in the period ending on the 91st day after the date of deposit; 
 (d) The
Company shall have delivered to the Trustee an Opinion of Counsel to the effect that Holders of the Securities of such Series will not recognize income, gain or loss for federal income tax purposes as a result of such deposit and covenant defeasance
and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such deposit and covenant defeasance had not occurred; 

(e) The Company shall have delivered to the Trustee an Officer’s Certificate stating the deposit was not made by
the Company with the intent of defeating, hindering, delaying or defrauding any other creditors of the Company; and 
 (f) The Company shall have delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the covenant
defeasance contemplated by this Section have been complied with. 
 Section 8.5. Repayment to Company.

 Subject to applicable abandoned property law, the Trustee and the Paying Agent shall pay to the Company upon request any money
held by them for the payment of principal and 

  
 35 

 
interest that remains unclaimed for two years. After that, Securityholders entitled to the money must look to the Company for payment as general creditors unless an applicable abandoned property
law designates another person. 
 Section 8.6. Reinstatement. 

If the Trustee or the Paying Agent is unable to apply any money deposited with respect to Securities of any Series in accordance with
Section 8.1 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, the obligations of the Company under this Indenture
with respect to the Securities of such Series and under the Securities of such Series shall be revived and reinstated as though no deposit had occurred pursuant to Section 8.1 until such time as the Trustee or the Paying Agent is permitted to
apply all such money in accordance with Section 8.1; provided, however, that if the Company has made any payment of principal of or interest on or any Additional Amounts with respect to 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 such payment from the money or U.S. Government Obligations held by the Trustee or Paying Agent after payment in full to the Holders.

 ARTICLE IX. 
 AMENDMENTS AND WAIVERS 
 Section 9.1. Without Consent of Holders.

 The Company and the Trustee may amend or supplement this Indenture or the Securities of one or more Series without the consent
of any Securityholder: 
 (a) to cure any ambiguity, defect or inconsistency; 

(b) to comply with Article V; 

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

(d) to add guarantees with respect to Securities of any Series or secure Securities of any Series; 

(e) to surrender any of the Company’s rights or powers under this Indenture; 

(f) to add covenants or events of default for the benefit of the holders of Securities of any Series; 

(g) to comply with the applicable procedures of the applicable depositary; 

(h) to make any change that does not adversely affect the rights of any Securityholder; 

  
 36 

 (i) to provide for the issuance of and establish the form and terms and
conditions of Securities of any Series as permitted by this Indenture; 
 (j) to evidence and provide for
the acceptance of appointment hereunder by a successor Trustee with respect to the Securities of one or more Series and to add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration
of the trusts hereunder by more than one Trustee; or 
 (k) to comply with requirements of the SEC in order
to effect or maintain the qualification of this Indenture under the TIA. 
 Section 9.2. With Consent of
Holders. 
 The Company and the Trustee may enter into a supplemental indenture with the written consent of the Holders of at
least a majority in principal amount of the outstanding Securities of each Series affected by such supplemental indenture (including consents obtained in connection with a tender offer or exchange offer for the Securities of such Series), for the
purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or of any supplemental indenture or of modifying in any manner the rights of the Securityholders of each such Series. Except as
provided in Section 6.13, the Holders of at least a majority in principal amount of the outstanding Securities of any Series by notice to the Trustee (including consents obtained in connection with a tender offer or exchange offer for the
Securities of such Series) may waive compliance by the Company with any provision of this Indenture or the Securities with respect to such Series. 
 It shall not be necessary for the consent of the Holders of Securities under this Section 9.2 to approve the particular form of any proposed supplemental indenture or waiver, but it shall be
sufficient if such consent approves the substance thereof. After a supplemental indenture or waiver under this section becomes effective, the Company shall mail to the Holders of Securities affected thereby, a notice briefly describing the
supplemental indenture or waiver. Any failure by the Company to mail or publish such notice, or any defect therein, shall not, however, in any way impair or affect the validity of any such supplemental indenture or waiver. 

Section 9.3. Limitations. 
 Without the consent of each Securityholder affected, an amendment or waiver may not: 
 (a) reduce the principal amount of Securities whose Holders must consent to an amendment, supplement or waiver; 

(b) reduce the rate of or extend the time for payment of interest (including default interest) on any Security;

 (c) reduce the principal or change the Stated Maturity of any Security or reduce the amount of, or
postpone the date fixed for, the payment of any sinking fund or analogous obligation; 

  
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 (d) reduce the principal amount of Discount Securities payable upon
acceleration of the maturity thereof; 
 (e) waive a Default or Event of Default in the payment of the
principal of or interest, if any, on any Security (except a rescission of acceleration of the Securities of any Series by the Holders of at least a majority in principal amount of the outstanding Securities of such Series and a waiver of the payment
default that resulted from such acceleration); 
 (f) make the principal of or interest, if any, on any
Security payable in any currency other than that stated in the Security; 
 (g) make any change in Sections
6.8, 6.13 or 9.3 (this sentence); or 
 (h) waive a redemption payment with respect to any Security,
provided that such redemption is made at the Company’s option. 
 Section 9.4. Compliance with Trust Indenture
Act. 
 Every amendment to this Indenture or the Securities of one or more Series shall be set forth in a supplemental
indenture hereto that complies with the TIA as then in effect. 
 Section 9.5. Revocation and Effect of
Consents. 
 Until an amendment is set forth in a supplemental indenture or a waiver becomes effective, a consent to it by a
Holder of a Security 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 his Security or portion of a Security if the Trustee receives the notice of revocation before the date of the supplemental indenture or the date the waiver becomes
effective. 
 Any amendment or waiver once effective shall bind every Securityholder of each Series affected by such amendment
or waiver unless it is of the type described in any of clauses (a) through (h) of Section 9.3. In that case, the amendment or waiver shall bind each Holder of a Security who has consented to it and every subsequent Holder of a
Security or portion of a Security that evidences the same debt as the consenting Holder’s Security. 
 The Company may, but
shall not be obligated to, fix a record date for the purpose of determining the Holders entitled to give their consent or take any other action described above or required or permitted to be taken pursuant to this Indenture. If a record date is
fixed, then notwithstanding the immediately preceding paragraph, those Persons who were Holders at such record date (or their duly designated proxies), and only those persons, shall be entitled to give such consent or to revoke any consent
previously given or take any such action, whether or not such Persons continue to be Holders after such record date. No such consent shall be valid or effective for more than 120 days after such record date. 

Section 9.6. Notation on or Exchange of Securities. 

  
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 The Company or the Trustee may place an appropriate notation about an amendment or waiver on
any Security of any Series thereafter authenticated. The Company in exchange for Securities of that Series may issue and the Trustee shall authenticate upon request new Securities of that Series that reflect the amendment or waiver. 

Section 9.7. Trustee Protected. 
 In executing, or accepting the additional trusts created by, any supplemental indenture permitted by this Article or the modifications thereby of the trusts created by this Indenture, the Trustee shall be
entitled to receive, and (subject to Section 7.1) shall be fully protected in relying upon, an Officer’s Certificate or an Opinion of Counsel or both complying with Section 10.4. The Trustee shall sign all supplemental indentures upon
delivery of such an Officer’s Certificate or Opinion of Counsel or both, except that the Trustee need not sign any supplemental indenture that adversely affects its rights. 

ARTICLE X. 

MISCELLANEOUS 

Section 10.1. Trust Indenture Act Controls. 
 If any provision of this Indenture limits, qualifies, or conflicts with another provision which is required or deemed to be included in this Indenture by the TIA, such required or deemed provision shall
control. 
 Section 10.2. Notices. 
 Any notice or communication by the Company or the Trustee to the other, or by a Holder to the Company or the Trustee, is duly given if in writing and delivered in person or mailed by first-class mail:

 if to the Company: 

US Airways Group, Inc. 
 111 West Rio Salado Parkway 
 Tempe, Arizona 

Attention: Executive Vice President – Corporate and Government Affairs 

Telephone: (480) 693-0800 

with a copy to: 

Latham & Watkins LLP 
 140 Scott Drive 
 Menlo Park, California 

Attention: Anthony J. Richmond 
 Telephone: (650) 328-4600 
 and: 

  
 39 

 Latham & Watkins LLP 

885 Third Avenue 
 New York, New York 
 Attention: Gregory P. Rodgers 

Telephone: (212) 906-2918 

if to the Trustee: 
 Wilmington
Trust, National Association 
 246 Goose Lane, Suite 105 

Guilford, Connecticut 06437 
 Attention: Joseph P. O’Donnell, Vice President 
 Telephone:
(203) 453-4130 
 The Company or the Trustee by notice to the other may designate additional or different addresses for
subsequent notices or communications. 
 Any notice or communication to a Securityholder shall be mailed by first-class mail to
his address shown on the register kept by the Registrar. Failure to mail a notice or communication to a Securityholder of any Series or any defect in it shall not affect its sufficiency with respect to other Securityholders of that or any other
Series. 
 If a notice or communication is mailed or published in the manner provided above, within the time prescribed, it is
duly given, whether or not the Securityholder receives it. 
 If the Company mails a notice or communication to Securityholders,
it shall mail a copy to the Trustee and each Agent at the same time. 
 Notwithstanding any other provision of this Indenture or
any Security, where this Indenture or any Security provides for notice of any event (including any notice of redemption) to a Holder of a Global Security (whether by mail or otherwise), such notice shall be sufficiently given to the Depositary for
such Security (or its designee) pursuant to the customary procedures of such Depositary. 

Section 10.3. Communication by Holders with Other Holders. 

Securityholders of any Series may communicate pursuant to TIA § 312(b) with other Securityholders of that Series or any other Series
with respect to their rights under this Indenture or the Securities of that Series or all Series. The Company, the Trustee, the Registrar and anyone else shall have the protection of TIA § 312(c). 

Section 10.4. Certificate and Opinion as to Conditions Precedent. 

Upon any request or application by the Company to the Trustee to take any action under this Indenture, the Company shall furnish to the
Trustee: 

  
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 (a) an Officer’s Certificate stating that, in the opinion of the
signers, all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with; and 
 (b) an Opinion of Counsel stating that, in the opinion of such counsel, all such conditions precedent have been complied with. 

Section 10.5. Statements Required in Certificate or Opinion. 

Each certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture (other than a
certificate provided pursuant to TIA § 314(a)(4)) shall comply with the provisions of TIA § 314(e) and shall include: 
 (a) a statement that the person making such certificate or opinion has read such covenant or condition; 
 (b) 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; 

(c) a statement that, in the opinion of such person, he has made such examination or investigation as is necessary to
enable him to express an informed opinion as to whether or not such covenant or condition has been complied with; and 
 (d) a statement as to whether or not, in the opinion of such person, such condition or covenant has been complied with. 
 Section 10.6. Rules by Trustee and Agents. 
 The Trustee may make
reasonable rules for action by or a meeting of Securityholders of one or more Series. Any Agent may make reasonable rules and set reasonable requirements for its functions. 
 Section 10.7. Legal Holidays. 
 Unless otherwise provided by Board
Resolution, Officer’s Certificate or supplemental indenture hereto for a particular Series, a “Legal Holiday” is any day that is not a Business Day. If a payment date is a Legal Holiday at a place of payment, payment may be
made at that place on the next succeeding day that is not a Legal Holiday, and no interest shall accrue for the intervening period. 
 Section 10.8. No Recourse Against Others. 
 A director, officer,
employee or stockholder (past or present), as such, of the Company shall not have any liability for any obligations of the Company under the Securities or the Indenture or for any claim based on, in respect of or by reason of such obligations or
their creation. Each Securityholder by accepting a Security waives and releases all such liability. The waiver and release are part of the consideration for the issue of the Securities. 

  
 41 

 Section 10.9. Counterparts. 

This Indenture may be executed in any number of counterparts and by the parties hereto in separate counterparts, each of which when so
executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. The exchange of copies of this Indenture and of signature pages by facsimile or PDF transmission shall constitute effective
execution and delivery of this Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures
for all purposes. 
 Section 10.10. Governing Law. 

THIS INDENTURE AND THE SECURITIES, INCLUDING ANY CLAIM OR CONTROVERSY ARISING OUT OF OR RELATING TO THE INDENTURE OR THE SECURITIES,
SHALL BE GOVERNED BY THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO THE CONFLICTS OF LAWS PROVISIONS THEREOF OTHER THAN SECTION 5-1401 OF THE GENERAL OBLIGATIONS LAW). 

Section 10.11. 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 10.12. 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. 

Section 10.13. Severability. 
 In case any provision 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 10.14. Table of Contents, Headings, Etc. 

The Table of Contents, Cross Reference Table, and headings of the Articles and Sections of this Indenture have been inserted for
convenience of reference only, are not to be considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof. 
 Section 10.15. Securities in a Foreign Currency. 

  
 42 

 Unless otherwise specified in a Board Resolution, a supplemental indenture hereto or an
Officer’s Certificate delivered pursuant to Section 2.2 of this Indenture with respect to a particular Series of Securities, whenever for purposes of this Indenture any action may be taken by the Holders of a specified percentage in
aggregate principal amount of Securities of all Series or all Series affected by a particular action at the time outstanding and, at such time, there are outstanding Securities of any Series which are denominated in more than one currency, then the
principal amount of Securities of such Series which shall be deemed to be outstanding for the purpose of taking such action shall be determined by converting any such other currency into a currency that is designated upon issuance of any particular
Series of Securities. Unless otherwise specified in a Board Resolution, a supplemental indenture hereto or an Officer’s Certificate delivered pursuant to Section 2.2 of this Indenture with respect to a particular Series of Securities, such
conversion shall be at the spot rate for the purchase of the designated currency as published in The Financial Times in the “Currency Rates” section (of, if The Financial Times is no longer published, or if such information is no longer
available in The Financial Times, such source as may be selected in good faith by the Company) on any date of determination. The provisions of this paragraph shall apply in determining the equivalent principal amount in respect of Securities of a
Series denominated in currency other than Dollars in connection with any action taken by Holders of Securities pursuant to the terms of this Indenture. 
 All decisions and determinations provided for in the preceding paragraph shall, in the absence of manifest error, to the extent permitted by law, be conclusive for all purposes and irrevocably binding
upon the Trustee and all Holders. 
 Section 10.16. Judgment Currency. 

The Company agrees, to the fullest extent that it may effectively do so under applicable law, that (a) if for the purpose of
obtaining judgment in any court it is necessary to convert the sum due in respect of the principal of or interest or other amount on the Securities of any Series (the “Required Currency”) into a currency in which a judgment will be
rendered (the “Judgment Currency”), the rate of exchange used shall be the rate at which in accordance with normal banking procedures the Trustee could purchase in The City of New York the Required Currency with the Judgment
Currency on the day on which final unappealable judgment is entered, unless such day is not a New York Banking Day, then the rate of exchange used shall be the rate at which in accordance with normal banking procedures the Trustee could purchase in
The City of New York the Required Currency with the Judgment Currency on the New York Banking Day preceding the day on which final unappealable judgment is entered and (b) its obligations under this Indenture to make payments in the Required
Currency (i) shall not be discharged or satisfied by any tender, any recovery pursuant to any judgment (whether or not entered in accordance with subsection (a)), in any currency other than the Required Currency, except to the extent that such
tender or recovery shall result in the actual receipt, by the payee, of the full amount of the Required Currency expressed to be payable in respect of such payments, (ii) shall be enforceable as an alternative or additional cause of action for
the purpose of recovering in the Required Currency the amount, if any, by which such actual receipt shall fall short of the full amount of the Required Currency so expressed to be payable, and (iii) shall not be affected by judgment being
obtained for any other sum due under this Indenture. For purposes of the foregoing, “New York Banking Day” means any day except a Saturday, Sunday 

  
 43 

 
or a legal holiday in The City of New York on which banking institutions are authorized or required by law, regulation or executive order to close. 

Section 10.17. Force Majeure. 
 In no event shall the Trustee be responsible or liable for any failure or delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its
control, including, without limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities,
communications or computer (software and hardware) services, it being understood that the Trustee shall use reasonable best efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable
under the circumstances. 
 ARTICLE XI. 
 SINKING FUNDS 
 Section 11.1. Applicability of Article.

 The provisions of this Article shall be applicable to any sinking fund for the retirement of the Securities of a Series if so
provided by the terms of such Securities pursuant to Section 2.2 and except as otherwise permitted or required by any form of Security of such Series issued pursuant to this Indenture. 

The minimum amount of any sinking fund payment provided for by the terms of the Securities of any Series is herein referred to as a
“mandatory sinking fund payment” and any other amount provided for by the terms of Securities of such Series is herein referred to as an “optional sinking fund payment.” If provided for by the terms of Securities of
any Series, the cash amount of any sinking fund payment may be subject to reduction as provided in Section 11.2. Each sinking fund payment shall be applied to the redemption of Securities of any Series as provided for by the terms of the
Securities of such Series. 
 Section 11.2. Satisfaction of Sinking Fund Payments with Securities. 

The Company may, in satisfaction of all or any part of any sinking fund payment with respect to the Securities of any Series to be made
pursuant to the terms of such Securities (1) deliver outstanding Securities of such Series to which such sinking fund payment is applicable (other than any of such Securities previously called for mandatory sinking fund redemption) and
(2) apply as credit Securities of such Series to which such sinking fund payment is applicable and which have been repurchased by the Company or redeemed either at the election of the Company pursuant to the terms of such Series of Securities
(except pursuant to any mandatory sinking fund) or through the application of permitted optional sinking fund payments or other optional redemptions pursuant to the terms of such Securities, provided that such Securities have not been previously so
credited. Such Securities shall be received by the Trustee, together with an Officer’s Certificate with respect thereto, not later than 15 days prior to the date on which the Trustee begins the process of selecting Securities for redemption,
and shall be credited for such purpose by the Trustee at the price specified in such Securities for redemption through operation of the sinking fund and the amount of such sinking fund payment

  
 44 

 
shall be reduced accordingly. If as a result of the delivery or credit of Securities in lieu of cash payments pursuant to this Section 11.2, the principal amount of Securities of such Series
to be redeemed in order to exhaust the aforesaid cash payment shall be less than $100,000, the Trustee need not call Securities of such Series for redemption, except upon receipt of a Company Order that such action be taken, and such cash payment
shall be held by the Trustee or a Paying Agent and applied to the next succeeding sinking fund payment, provided, however, that the Trustee or such Paying Agent shall from time to time upon receipt of a Company Order pay over and
deliver to the Company any cash payment so being held by the Trustee or such Paying Agent upon delivery by the Company to the Trustee of Securities of that Series purchased by the Company having an unpaid principal amount equal to the cash payment
required to be released to the Company. 
 Section 11.3. Redemption of Securities for Sinking Fund. 

Not less than 45 days (unless otherwise indicated in the Board Resolution, supplemental indenture hereto or Officer’s Certificate in
respect of a particular Series of Securities) prior to each sinking fund payment date for any Series of Securities, the Company will deliver to the Trustee an Officer’s Certificate specifying the amount of the next ensuing mandatory sinking
fund payment for that Series pursuant to the terms of that Series, the portion thereof, if any, which is to be satisfied by payment of cash and the portion thereof, if any, which is to be satisfied by delivering and crediting of Securities of that
Series pursuant to Section 11.2, and the optional amount, if any, to be added in cash to the next ensuing mandatory sinking fund payment, and the Company shall thereupon be obligated to pay the amount therein specified. Not less than 30 days
(unless otherwise indicated in the Board Resolution, Officer’s Certificate or supplemental indenture in respect of a particular Series of Securities) before each such sinking fund payment date the Trustee shall select the Securities to be
redeemed upon such sinking fund payment date in the manner specified in Section 3.2 and cause notice of the redemption thereof to be given in the name of and at the expense of the Company in the manner provided in Section 3.3. Such notice
having been duly given, the redemption of such Securities shall be made upon the terms and in the manner stated in Sections 3.4, 3.5 and 3.6. 

  
 45 

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

			
	US Airways Group, Inc.
		
	By:	 	 /s/ Derek J. Kerr

	Name:	 	Derek J. Kerr
	Its:	 	Executive Vice President and Chief Financial Officer
	
	Wilmington Trust, National Association, as Trustee
		
	By:	 	 /s/ Joseph P. O’Donnell

	Name:	 	Joseph P. O’Donnell
	Its:	 	Vice President

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