Document:

EX-4.3

 Exhibit 4.3 

This Supplemental Indenture (this “Supplemental Indenture”), dated as of July 31, 2018 among WMIH Corp, a Delaware
corporation (the “Guaranteeing Parent”), an indirect parent of Nationstar Mortgage LLC, a Delaware limited liability company (the “Company” and, together with Nationstar Capital Corporation, the
“Issuers”) and Wells Fargo Bank, National Association, as trustee (the “Trustee”). 

W I T N E S S E T H 

WHEREAS, the Issuers and each of the Guarantors (as defined in the Indenture referred to below) have heretofore executed and delivered to the
Trustee an indenture (the “Indenture”), dated as of May 31, 2013, providing for the issuance of 6.500% Senior Notes due 2022 (the “Notes”); 

WHEREAS, the Guaranteeing Parent has determined that it is desirable to unconditionally guarantee all of the Issuers’ Obligations under
the Notes and the Indenture on the terms and conditions set forth herein and under the Indenture (the “Note Guarantee”) and the provision of the Note Guarantee is permitted pursuant to Section 9.01 of the
Indenture; and 
 WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and
deliver this Supplemental Indenture. 
 NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the
receipt of which is hereby acknowledged, the parties mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows: 

(1)    Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them
in the Indenture. 
 (2)    Agreement to Guarantee. The Guaranteeing Parent hereby agrees as follows: 

(a) Along with all other Guarantors named in the Indenture (including pursuant to any supplemental indentures), to jointly and severally
unconditionally guarantee to each Holder of a Note authenticated and delivered by the Trustee and to the Trustee and its respective successors and assigns, irrespective of the validity and enforceability of the Indenture, the Notes or the
obligations of the Issuers hereunder or thereunder, that: 
 (i) the principal of, interest and premium, if any, on the Notes
shall be promptly paid in full when due, whether at maturity, by acceleration, redemption or otherwise, and interest on the overdue principal of and interest on the Notes, if any, if lawful, and all other obligations of the Issuers to the Holders or
the Trustee hereunder or thereunder shall be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and 

(ii) in case of any extension of time of payment or renewal of any Notes or any of such other obligations, that same shall be
promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise. 

 Failing payment when due of any amount so guaranteed or any performance so guaranteed for
whatever reason, the Guarantors and the Guaranteeing Parent shall be jointly and severally obligated to pay the same immediately. This is a guarantee of payment and not a guarantee of collection. 

(b) The obligations hereunder shall be unconditional, irrespective of the validity, regularity or enforceability of the Notes
or the Indenture, the absence of any action to enforce the same, any waiver or consent by any Holder of the Notes with respect to any provisions hereof or thereof, the recovery of any judgment against the Issuers or any Guarantors, any action to
enforce the same or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor. 

(c) The Guaranteeing Parent hereby waives: diligence, presentment, demand of payment, filing of claims with a court in the
event of insolvency or bankruptcy of the Issuers, any right to require a proceeding first against the Issuers, protest, notice and all demands whatsoever. 

(d) This Note Guarantee shall not be discharged except by full payment or complete performance of the obligations contained in
the Notes, the Indenture and this Supplemental Indenture, and the Guaranteeing Parent accepts all obligations of a Guarantor under the Indenture, including Article X of the Indenture (which is deemed incorporated in this Supplemental Indenture and
applicable to this Note Guarantee). The Guaranteeing Parent acknowledges that by executing this Supplemental Indenture, it will become a Guarantor under the Indenture and subject to all the terms and conditions applicable to Guarantors contained
therein. 
 (e) If any Holder or the Trustee is required by any court or otherwise to return to the Issuers, the Guarantors
(including the Guaranteeing Parent), or any custodian, trustee, liquidator or other similar official acting in relation to either the Issuers or the Guarantors, any amount paid either to the Trustee or such Holder, this Note Guarantee, to the extent
theretofore discharged, shall be reinstated in full force and effect. 
 (f) The Guaranteeing Parent shall not be entitled to
any right of subrogation in relation to the Holders in respect of any obligations guaranteed hereby until payment in full of all obligations guaranteed hereby. 

(g) As between the Guaranteeing Parent, on the one hand, and the Holders and the Trustee, on the other hand, (x) the
maturity of the obligations guaranteed hereby may be accelerated as provided in Article VI of the Indenture for the purposes of this Note Guarantee, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of
the obligations guaranteed hereby, and (y) in the event of any declaration of acceleration of such obligations as provided in Article VI of the Indenture, such obligations (whether or not due and payable) shall forthwith become due and payable
by the Guaranteeing Parent for the purpose of this Note Guarantee. 

  
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 (h) The Guaranteeing Parent shall have the right to seek contribution from any non-paying Guarantor so long as the exercise of such right does not impair the rights of the Holders under this Note Guarantee. 

(i) Pursuant to Section 10.02 of the Indenture, the obligations of the Guaranteeing Parent shall be
limited to the maximum amount as will, after giving effect to such maximum amount and all other contingent and fixed liabilities of such Guaranteeing Parent that are relevant under any applicable Bankruptcy Law or fraudulent conveyance laws and
after giving effect to any collections from, rights to receive contribution from or payments made by or on behalf of any other Guarantor in respect of the obligations of such other Guarantor under Article X of the Indenture, result in the
obligations of such Guaranteeing Parent under this Note Guarantee not constituting a fraudulent conveyance or fraudulent transfer under applicable law. 

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

(k) In case any provision of this Note Guarantee 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. 
 (l) This Note Guarantee
shall be a general unsecured senior obligation of such Guaranteeing Parent, ranking pari passu with any other future unsubordinated Indebtedness of the Guaranteeing Parent, if any. 

(m) Each payment to be made by the Guaranteeing Parent in respect of this Note Guarantee shall be made without set-off, counterclaim, reduction or diminution of any kind or nature. 

(3)    Execution and Delivery. The Guaranteeing Parent agrees that the Note Guarantee shall remain in full force
and effect notwithstanding the absence of the endorsement of any notation of such Note Guarantee on the Notes. 

  
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 (4)    Merger, Consolidation or Sale of All or Substantially All
Assets. 
 (a) The Guaranteeing Parent may not sell or otherwise dispose of all or substantially all of its assets to, or
consolidate with or merge with or into (whether or not such Guaranteeing Parent is the surviving Person), another Person, other than the Issuers or another Guarantor, unless: 

(i) except in the case of a merger entered into solely for the purpose of reincorporating a Guaranteeing Parent in another
jurisdiction, immediately after giving effect to that transaction, no Default or Event of Default shall have occurred and be continuing; and 

(ii) either: 

(A) the Person acquiring the property in any such sale or disposition or the Person formed by or surviving any such
consolidation or merger (if not the Guaranteeing Parent) assumes all the obligations of that Guaranteeing Parent under the Indenture and its Note Guarantee pursuant to this supplemental indenture; or 

(B) the Net Proceeds of such sale or other disposition are either (i) applied in accordance with
Section 4.10(d) of the Indenture or (ii) not required to be applied in accordance with any provision of the Indenture. 

(5)    Releases. 

The Note Guarantee of the Guaranteeing Parent shall be automatically and unconditionally released and discharged, and no further action by the
Guaranteeing Parent, the Issuers or the Trustee is required for the release of the Guaranteeing Parent’s Note Guarantee, in the following circumstances: 

(a) in connection with any sale, transfer or other disposition of all or substantially all of the assets of that Guaranteeing
Parent (including by way of merger or consolidation) to a Person that is not (either before or after giving effect to such transaction) the Company or a Restricted Subsidiary of the Company, if the sale or other disposition does not violate
Section 4.10 of the Indenture; 
 (b) in connection with any sale, transfer or other disposition of
all of the Capital Stock of the Guaranteeing Parent (including by way of merger or consolidation) to a Person that is not (either before or after giving effect to such transaction) the Company or a Restricted Subsidiary of the Company, if the sale
or other disposition does not violate Section 4.10 of the Indenture; 
 (c) if the Company
designates any Restricted Subsidiary of the Company that is a Guarantor to be an Unrestricted Subsidiary of the Company in accordance with Section 4.17 of the Indenture; or 

(d) upon the exercise of Legal Defeasance by the Issuers or pursuant to Article XI of the Indenture; and 

in connection with such release, either of the Issuers shall deliver to the Trustee an Officers’ Certificate of such Guarantor confirming
the effective date of such release and stating that all conditions precedent provided for in this Indenture relating to such transaction have been complied with. 

  
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 (6)    No Recourse Against Others. No director, officer, employee,
incorporator or stockholder of the Guaranteeing Parent shall have any liability for any obligations of the Issuers or the Guarantors (including the Guaranteeing Parent), respectively, under the Notes, the Note Guarantees, the Indenture or this
Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation; provided that the foregoing shall not limit any Guarantor’s obligations under its Note Guarantees. Each Holder by
accepting Notes waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. 

(7)    Governing Law. THIS SUPPLEMENTAL INDENTURE WILL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF
THE STATE OF NEW YORK. 
 (8)    Counterparts. The parties may sign any number of copies of this Supplemental
Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. 

(9)    Effect of Headings. The Section headings herein are for convenience only and shall not affect the
construction hereof. 
 (10)    The Trustee. The Trustee shall not be responsible in any manner whatsoever for or
in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Parent. 

(11)    Subrogation. The Guaranteeing Parent shall be subrogated to all rights of Holders of Notes against the
Issuers in respect of any amounts paid by the Guaranteeing Parent pursuant to the provisions of Section 2 hereof and Section 10.01 of the Indenture; provided that, if an Event of Default has
occurred and is continuing, the Guaranteeing Parent shall not be entitled to enforce or receive any payments arising out of, or based upon, such right of subrogation until all amounts then due and payable by the Issuers under the Indenture or the
Notes shall have been paid in full. 
 (12)    Benefits Acknowledged. The Guaranteeing Parent’s Note
Guarantee is subject to the terms and conditions set forth in the Indenture. The Guaranteeing Parent acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this Supplemental
Indenture and that the guarantee and waivers made by it pursuant to this Note Guarantee are knowingly made in contemplation of such benefits. 

(13)    Successors. All agreements of the Guaranteeing Parent in this Supplemental Indenture shall bind its
Successors, except as otherwise in this Supplemental Indenture. All agreements of the Trustee in this Supplemental Indenture shall bind its successors. 

[signature pages follow] 

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

			
	WMIH Corp.
		
	By:	 	 /s/ Amar R. Patel

	Name:	 	Amar R. Patel
	Title:	 	Executive Vice President, and Chief Financial Officer

 [Signature Page to 2022 Notes Supplemental Indenture] 

 
			
	 WELLS FARGO BANK, NATIONAL ASSOCIATION,
  

as Trustee

 
			
		
	By:	 	 /s/ Casey A. Boyle

	Name:	 	Casey A. Boyle
	Title:	 	Assistant Vice President

 [Signature Page to 2022 Notes Supplemental Indenture]EX-10.1

 Exhibit 10.1 

AMENDMENT TO THE 

NATIONSTAR MORTGAGE HOLDINGS INC. 

SECOND AMENDED AND RESTATED 

2012 INCENTIVE COMPENSATION PLAN 

This Amendment to the Nationstar Mortgage Holdings, Inc. Second Amended and Restated 2012 Incentive Compensation Plan (the
“Plan”), made pursuant to the right to amend reserved in Section 16 of the Plan, amends the Plan as follows, effective as of the date set forth below: 
  

	1.	The preamble to the Plan is hereby deleted and replaced in its entirety by the following: 

“The Nationstar Mortgage Holdings Inc. 2012 Incentive Compensation Plan (as it may be amended from time to time, the
“Plan”) was established by Nationstar Mortgage Holdings Inc., a Delaware corporation (“Nationstar”), effective as of February 24, 2012. Nationstar amended and restated the Plan effective as of February 24,
2015 and amended and restated the Plan on February 29, 2016, subject to shareholder approval, which approval was obtained on May 12, 2016. In connection with the acquisition of Nationstar by WMIH Corp., a Delaware corporation (together,
with any successor thereto or assign thereof, “WMIH”) pursuant to the terms and conditions of that certain Agreement and Plan of Merger among WMIH, Nationstar and Wand Merger Corporation, dated as of February 12, 2018 (the
“Merger Agreement”), the Plan was assumed by WMIH, effective as of the Effective Time (as defined in the Merger Agreement).” 
  

	2.	Section 1 of the Plan is hereby deleted and replaced in its entirety by the following: 

  

	 	“1.	Purpose of the Plan 

 This Plan is intended to promote the interests of
WMIH and its stockholders by providing employees, consultants and directors of Nationstar and its Subsidiaries, who are largely responsible for the management, growth and protection of the business of WMIH and its Subsidiaries, with incentives and
rewards to encourage them to continue in the service of Nationstar and its Subsidiaries and with a proprietary interest in pursuing the long-term growth, profitability and financial success of WMIH and its Subsidiaries.” 

	3.	The definition of the term “Board of Directors” as set forth in Section 2(b) of the Plan is hereby deleted and replaced in its entirety by the following: 

“(b) “Board of Directors” means the board of directors of WMIH.” 

 

	4.	The definition of the term “Common Stock” as set forth in Section 2(g) of the Plan is hereby deleted and replaced in its entirety by the following: 

“(g) “Common Stock” means WMIH’s common stock, par value $0.00001 per share, or any other security that may be substituted
for Common Stock or into which Common Stock may be changed pursuant to the adjustment provisions of Section 11 of the Plan.” 
  

	5.	The definition of the term “Company” as set forth in Section 2(h) of the Plan is hereby deleted and replaced in its entirety by the following: 

“(h) “Company” means WMIH.” 
  

	6.	The definition of the term “Participant” as set forth in Section 2(q) of the Plan is deleted and replaced in its entirety by the following: 

“(q) “Participant” means an employee, director or consultant of Nationstar or one of its Subsidiaries who is eligible to
participate in the Plan and to whom one or more Awards have been granted pursuant to the Plan and, following the death of any such Person, his successors, heirs, executors and administrators, as the case may be.” 

 

	7.	Section 4 of the Plan is hereby deleted in its entirety and replaced with the following: 

“The Plan shall be administered by a Committee of the Board of Directors consisting of two or more persons, each of whom qualifies as a “non-employee director” (within the meaning of Rule 16b-3 promulgated under Section 16 of the Exchange Act), an “outside director” within the meaning
of Treasury Regulation Section 1.162-27(e)(3) and as “independent” within the meaning of any applicable stock exchange or similar regulatory authority. The Committee shall, consistent with the
terms of the Plan, from time to time designate those employees and consultants of Nationstar or 

  
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its Subsidiaries who shall be granted Awards under the Plan and the amount, type and other terms and conditions of such Awards. All of the powers and responsibilities of the Committee under the
Plan may be delegated by the Committee, in writing, to any subcommittee thereof. In addition, the Committee may from time to time authorize a subcommittee consisting of one or more members of the Board of Directors (including members who are
employees of the Company) or employees of Nationstar or one of its Subsidiaries to grant Awards to persons who are not “executive officers” of the Company (within the meaning of Rule 16a-1 under the
Exchange Act), including grants to employees of its Subsidiaries, subject to such restrictions and limitation as the Committee may specify. In addition, the Board of Directors may, consistent with the terms of the Plan, from time to time grant
Awards to directors of Nationstar. 
 The Committee shall have full discretionary authority to administer the Plan, including discretionary
authority to interpret and construe any and all provisions of the Plan and the terms of any Award (and any agreement evidencing any Award) granted thereunder and to adopt and amend from time to time such rules and regulations for the administration
of the Plan as the Committee may deem necessary or appropriate. Without limiting the generality of the foregoing, the Committee shall determine whether an authorized leave of absence, or absence in military or government service, shall constitute
termination of employment. The employment of a Participant with Nationstar shall be deemed to have terminated for all purposes of the Plan if such Participant is employed by or provides services to a Person that is a Subsidiary of Nationstar and
such Person ceases to be a Subsidiary of Nationstar, unless the Committee determines otherwise. Decisions of the Committee shall be final, binding and conclusive on all parties. 

Upon the occurrence of a Change in Control, the Committee shall have full discretionary authority to (i) accelerate the vesting of any
Award, and/or (ii) provide for payment of any Award. 
 On or after the date of grant of an Award under the Plan, the Committee may
(i) accelerate the date on which any such Award becomes vested, exercisable or transferable, as the case may be, (ii) extend the term of any such Award, including, without limitation, extending the period following a termination of a
Participant’s employment during which any such Award may remain outstanding, (iii) waive any conditions to the vesting, exercisability or transferability, as the case may be, of any such Award or (iv) provide for the payment of
dividends or dividend equivalents with respect to any such Award; provided, that the Committee shall not have any such authority to the extent that the grant of such authority would cause any tax to become due under Section 409A of the Code.

  
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No member of the Committee shall be liable for any action, omission, or determination relating to the Plan, and the Company shall indemnify and hold harmless each member of the Committee and each
other director or employee of the Company to whom any duty or power relating to the administration or interpretation of the Plan has been delegated against any cost or expense (including counsel fees) or liability (including any sum paid in
settlement of a claim with the approval of the Committee) arising out of any action, omission or determination relating to the Plan, unless, in either case, such action, omission or determination was taken or made by such member, director or
employee in bad faith and without reasonable belief that it was in the best interests of the Company. 
  

	8.	Section 5 of the Plan is hereby deleted and replaced in its entirety by the following: 

  

	 	“5.	Eligibility 

 The Persons who shall be eligible to receive Awards
pursuant to the Plan shall be those employees, directors and consultants of Nationstar and its Subsidiaries whom the Committee shall select from time to time, including those key employees (including officers of Nationstar and its Subsidiaries,
whether or not they are directors) who are largely responsible for the management, growth and protection of the business of the Company and its Subsidiaries. Each Award granted under the Plan shall be evidenced by an instrument in writing in form
and substance approved by the Committee.” 
  

	9.	Section 6(c) of the Plan is hereby deleted and replaced in its entirety by the following: 

  

	 	“(c)	Effect of Termination of Employment or Other Relationship 

 The agreement
evidencing the award of each Stock Option shall specify the consequences with respect to such Stock Option of the termination of the employment, service as a director or other relationship between Nationstar or one of its Subsidiaries and the
Participant holding the Stock Option.” 
  

	10.	Section 11 of the Plan is hereby amended by deleting each occurrence of the term “Nationstar” therein and replacing the same with “the Company”. 

  
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	11.	Section 13(a) of the Plan is hereby deleted and replaced in its entirety by the following: 

“(a) Nothing contained in the Plan or any Award shall confer upon any Participant any right with respect to the continuation of his
employment by or service to Nationstar or any of its Subsidiaries or interfere in any way with the right of Nationstar or any of its Subsidiaries at any time to terminate such employment or service or to increase or decrease the compensation of the
Participant from the rate in existence at the time of the grant of an Award.” 
  

	12.	Each of Sections 14, 15 and 19 of the Plan are hereby amended by deleting each occurrence of the term “Nationstar” therein and replacing the same with “the Company”. 

 

	13.	In all other respects, the Plan will remain unchanged and in full force in effect. 

 *
        *        * 
 Adopted by the Board of Directors on July 31,
2018. 

  
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