Document:

EX-10.1

 Exhibit 10.1 

EXECUTIVE EMPLOYMENT AGREEMENT 

This EXECUTIVE EMPLOYMENT AGREEMENT (the
“Agreement”) is entered into effective July 31, 2017 (the “Effective Date”), by and between Mani Mohindru (“Executive”) and Cara Therapeutics, Inc.
(the “Company”). 
 WHEREAS, the Company desires to employ Executive and, in connection therewith, to compensate
Executive for Executive’s personal services to the Company; and 
 WHEREAS, Executive wishes to be employed by the Company and provide
personal services to the Company in return for certain compensation. 
 Accordingly, in consideration of the mutual promises and covenants
contained herein, the parties agree to the following: 
  

	 	1.	EMPLOYMENT BY THE COMPANY. 

1.1 Position. Subject to the terms set forth herein, the Company agrees to employ Executive initially in the position of Chief
Financial Officer and Chief Strategy Officer, and Executive hereby accepts such employment. The Company reserves the right to change or modify Executive’s title and/or duties as business needs may require. During the term of Executive’s
employment with the Company, Executive will devote her best efforts and substantially all of her business time and attention to the business of the Company. 

1.2 Duties. Executive will report to the Chief Executive Officer of the Company (the “CEO”) performing
such duties as are normally associated with Executive’s position, and as more fully described on Exhibit A hereto, and such duties as are assigned to Executive from time to time by the CEO, subject to the oversight and direction of the
CEO. Executive shall perform Executive’s duties under this Agreement principally out of the Company’s corporate headquarters which are currently located in Stamford, Connecticut. In addition, Executive shall make such business trips to
such places as may be necessary or advisable for the efficient operations of the Company. 
 1.3 At-Will Employment.
Executive’s employment relationship with the Company is, and shall at all times remain, at-will. This means that either Executive or the Company may terminate the employment relationship at any time, for any reason or for no reason, with or
without cause or advance notice. 
 1.4 Company Policies and Benefits. The employment relationship between the parties shall
also be subject to the Company’s personnel policies and procedures as they may be interpreted, adopted, revised or deleted from time to time in the Company’s sole discretion. Executive will be eligible to participate on the same basis as
similarly situated employees in the Company’s benefit plans in effect from time to time during her employment. All matters of eligibility for coverage or benefits under any benefit plan shall be determined in accordance with the provisions of
such plan. The Company reserves the right to change, alter, or terminate any benefit plan in its sole discretion. Notwithstanding the foregoing, in the event that the terms of this Agreement differ from or are in conflict with the Company’s
general employment policies or practices, this Agreement shall control. 

 1.5 Start Date. Executive’s employment with the Company shall commence
on August 15th, 2017 (the “Start Date”). 
  

	 	2.	COMPENSATION. 

 2.1 Salary. Executive
shall receive for Executive’s services to be rendered hereunder an initial annualized base salary of $420,000, subject to review and adjustment from time to time by the Board of Directors of the Company (the “Board”) in
its sole discretion and payable subject to standard federal and state payroll withholding requirements in accordance with Company’s standard payroll practices (“Base Salary”). The Base Salary shall be prorated for any
partial year of employment on the basis of a 365-day year. 
 2.2 Hiring Bonus. On the first regularly scheduled payroll date
following the Start Date, Executive shall receive a one-time bonus in the amount of Twenty Five Thousand Dollars ($25,000.00), less required withholding and deductions. In the event Executive terminates her employment or is terminated for Cause
within the 12-month period following the Start Date, she will repay to the Company the net amount of this bonus that she received. The Executive shall not have to repay the bonus if she is terminated without Cause. 

2.3 Target Bonus.  

(a) During Employment. Executive shall be eligible to earn an annual cash bonus pursuant to the Company’s annual
performance bonus plan, with the initial target amount of such bonus equal to forty percent (40%) of Executive’s Base Salary during the then current bonus year (“Target Bonus”), subject to review and adjustment from
time to time by the Company in its sole discretion, payable subject to standard federal and state payroll withholding requirements. Any Target Bonus for 2017 shall be prorated for any partial year of employment on the basis of a 365-day year.
Whether or not Executive is eligible for any Target Bonus will be dependent upon (a) the actual achievement by Executive and the Company of the applicable individual and corporate performance goals, as determined by the Company, and
(b) Executive’s continuous performance of services to the Company through the date any bonus is paid. In all events, any bonus awarded pursuant to this Section 2.3 will be paid on or before March 15 of the year following the year
for which is awarded. 
 (b) Upon Termination. Except as otherwise set forth in Section 6 herein, in the event Executive
leaves the employ of the Company for any reason prior to payment of any bonus, Executive is not eligible for such bonus, prorated or otherwise. 

2.4 Expense Reimbursement. The Company will reimburse Executive for reasonable business expenses in accordance with the
Company’s standard expense reimbursement policy. To the extent that any reimbursements payable to Executive under this Agreement are subject to the provisions of Section 409A of the Code, then (i) any such reimbursements will be paid
no later than December 31 of the year following the year in which the expense was incurred or, with respect to any tax reimbursement, the year in which the taxes were paid, (ii) the amount of expenses reimbursed in one year will not affect
the amount eligible for reimbursement in any subsequent year, and (iii) the right to reimbursement under this Agreement will not be subject to liquidation or exchange for another benefit. 

 2.5 Stock Option. Subject to approval by the Board and subject to the terms of the
Company’s 2014 Equity Incentive Plan (the “Plan”), Executive will be granted an option (the “Option”) to purchase 385,000 shares of the Company’s Common Stock (the “Option
Shares”). Subject to Executive’s continuous service through each applicable vesting date, the Option will vest and become exercisable with respect to twenty-five percent of the Option Shares on the first anniversary of the Start
Date and will vest with respect to the remaining 75% of the Option Shares in equal amounts at the end of each calendar month for the 36-month period following the first anniversary of the Start Date. The exercise price of the Option will be equal to
the fair market value of the Company’s Common Stock on the date of grant of the Option, as determined by the Company. The Option will be governed by the Plan and other documents issued in connection with the grant. 

3. PROPRIETARY INFORMATION, INVENTIONS,
NON-COMPETITION AND NON-SOLICITATION OBLIGATIONS. As a condition of employment Executive agrees to execute and abide by
the Cara Therapeutics, Inc., At Will Employment, Confidential Information, Invention Assignment, And Arbitration Agreement, attached as Exhibit B which may be amended by the parties from time to time without regard to this Agreement. 

4. OUTSIDE ACTIVITIES. Except with the prior written consent of the
Company’s Board, Executive will not, while employed by the Company, undertake or engage in any other employment, occupation or business enterprise that would interfere with Executive’s responsibilities and the performance of
Executive’s duties hereunder except for (i) reasonable time devoted to volunteer services for or on behalf of such religious, educational, non-profit and/or other charitable organization as Executive may wish to serve, (ii) reasonable
time devoted to activities in the non-profit and business communities consistent with Executive’s duties; and (iii) such other activities as may be specifically approved by the Board. This restriction shall not, however, preclude Executive
from owning less than one percent (1%) of the total outstanding shares of a publicly traded company. 
 5. NO
CONFLICT WITH EXISTING OBLIGATIONS. Executive represents that Executive’s performance of all the terms of this Agreement and as an Executive of
the Company do not and will not breach any agreement or obligation of any kind made prior to Executive’s employment by the Company, including agreements or obligations Executive may have with prior employers or entities for which Executive has
provided services. Executive has not entered into, and Executive agrees that Executive will not enter into, any agreement or obligation, either written or oral, in conflict herewith. 

6. TERMINATION OF EMPLOYMENT. The parties acknowledge
that either Executive or the Company may terminate the employment relationship at any time for any reason by giving notice as described in Sections 6.6 and 7.1. The provisions in this Section 6 govern the amount of compensation, if any, to be
provided to Executive upon termination of employment and do not restrict the right of either party to terminate the employment relationship. 

6.1 Termination by the Company Without Cause. 

(a) The Company shall have the right to terminate Executive’s employment with the Company pursuant to this Section 6.1 at
any time without “Cause” (as defined in Section 6.2(b) below) by giving notice as described in Section 6.6 of this Agreement. A termination pursuant to Section 6.5 below is not a termination without “Cause” for
purposes of receiving the benefits described in this Section 6.1. 

 (b) In the event Executive’s employment is terminated
without Cause on or after the first anniversary of the Start Date, then provided that Executive executes a general release in favor of the Company, in substantially the form attached as Exhibit C (the
“Release”), and subject to Section 6.1(c) (the date that the Release becomes effective and may no longer be revoked by Executive is referred to as the “Release Date”), then the Company shall
provide the following severance benefits to Executive (the “Severance Benefits”). 

(i) an amount equal to Executive’s then current Base Salary for a period of nine (9) months
following the Release Date (such applicable period is referred to as the “Severance Period”), less applicable withholdings and deductions, on the Company’s regular payroll dates;  

(ii) an amount equal to 50% of the Target Bonus that Executive was eligible to receive during the calendar year in which Executive is
terminated without Cause (if any) prorated for any partial year of employment on the basis of a 365-day year, payable in a lump sum on the later of (x) the date that annual performance bonuses are normally paid to other executives at the
Company or (y) the Release Date, but in no event later than March 15 of the year following the year for which the Target Bonus is paid; and  

(iii) provided Executive timely elects and remains eligible for continued coverage under COBRA, the Company will pay Executive COBRA
premiums for the coverage that Executive and Executive’s eligible dependents had at the time of the separation from the Company until the earliest of: (x) six (6) months following the separation from the Company; (y) the date
when Executive becomes eligible for substantially equivalent health insurance coverage in connection with new employment or self-employment; or (z) the date Executive cease to be eligible for COBRA continuation coverage for any reason (with any
COBRA premiums paid by Executive before the Release Date, if any, to be reimbursed by Company through a lump-sum payment to executive on the Release Date). 

In the event Executive’s employment is terminated without Cause before the first anniversary of the Start Date, then provided that Executive executes and
does not revoke the Release, and subject to Section 6.1(c) then the Company shall provide the Executive with the Severance Benefits, except that the Severance Period under Sections 6.1(b)(i) shall be reduced to three (3) months and the
COBRA period set forth in Section 6.1(b)(iii)(x) shall be reduced to three (3) months. To receive any Severance Benefits under this Section, Executive’s termination must constitute a “separation from service” (as defined
under Treasury Regulation Section 1.409A-1(h)) and Executive must execute and allow the Release to become effective within sixty (60) days of Executive’s termination. 

(c) Executive shall not receive any of the benefits pursuant to Section 6.1(b) or Section 6.4 unless she executes the
Release within the consideration period specified therein, which shall in no event be more than 60 days, and until the Release becomes effective and can no longer be revoked by Executive under its terms. If the consideration period for

 
signing the Release spans two calendar years, then, notwithstanding when Executive signs the Release and the Release becomes effective, no payments under Sections 6.1(b) or 6.4 will occur until
the subsequent calendar year if necessary to avoid the imposition of taxes under Section 409A (with such payments beginning or being made, as applicable, on the later of the Company’s first regularly scheduled payroll date in the
subsequent calendar year or the first payroll date after the Release Date). Executive’s ability to receive benefits pursuant to Section 6.1(b) or Section 6.4 is further conditioned upon her: returning all Company property; complying
with her post-termination obligations under this Agreement and the CIIA; and complying with the Release, including without limitation any non-disparagement and confidentiality provisions contained therein. 

(d) In the event Executive’s employment is terminated at any time without Cause, in addition to the severance benefits in
Section 6.1(b) or in Section 6.4, the Company shall pay to Executive the accrued but unpaid salary of Executive through the date of termination, in accordance with the Company’s standard payroll policies, together with all
compensation and benefits payable to Executive based on her participation in any compensation or benefit plan, program or arrangement through the date of termination. The Company will also reimburse Executive for reasonable business expenses in
accordance with the Company’s standard expense reimbursement policy. 
 (e) The damages caused by the termination of
Executive’s employment without Cause would be difficult to ascertain; therefore, the severance for which Executive is eligible pursuant to Section 6.1(b) or Section 6.4 in exchange for the Release is agreed to by the parties as
liquidated damages, to serve as full compensation, and not a penalty. 
 6.2 Termination by the Company for Cause. 

(a) Subject to Section 6.2(c) below, the Company shall have the right to terminate Executive’s employment with the Company
at any time for Cause by giving notice as described in Sections 6.6 and 7.1 of this Agreement.  
 (b)
“Cause” for termination shall mean that the Company has determined in its sole discretion that Executive has engaged in any one or more of the following: (i) Executive’s commission of a felony;
(ii) any act or omission of Executive constituting dishonesty, fraud, immoral, or disreputable conduct that causes material harm to the Company; (iii) Executive’s violation of Company policy that causes material harm to the Company;
(iv) Executive’s material breach of any written agreement between Executive and the Company which, if curable, remains uncured for thirty (30) days after notice; or (v) breach of fiduciary duty. 

(c) In the event Executive’s employment is terminated at any time for Cause, Executive will not receive severance payments in
Sections 6.1(b) or 6.4, or any other severance compensation or benefit, except that, pursuant to the Company’s standard payroll policies, the Company shall pay to Executive the accrued but unpaid salary of Executive through the date of
termination, together with all compensation and benefits payable to Executive based on her participation in any compensation or benefit plan, program or arrangement through the date of termination. The Company will also reimburse Executive for
reasonable business expenses in accordance with the Company’s standard expense reimbursement policy. 

 6.3 Resignation by Executive. 

(a) Executive may resign from Executive’s employment with the Company at any time by giving notice as described in Sections 6.6
and 7.1. 
 (b) In the event Executive resigns from Executive’s employment with the Company, Executive will not receive
severance payments under Section 6.1(b), Section 6.4 or any other severance compensation or benefit, except that, pursuant to the Company’s standard payroll policies, the Company shall pay to Executive the accrued but unpaid salary of
Executive through the date of resignation, together with all compensation and benefits payable to Executive through the date of resignation under any compensation or benefit plan, program or arrangement during such period and Executive shall be
eligible for any benefit continuation or conversion rights provided by the provisions of a benefit plan or by law. The Company will also reimburse Executive for reasonable business expenses in accordance with the Company’s standard expense
reimbursement policy. 
 6.4 Termination in Connection With a Change in Control. In the event that the Company terminates
Executive without Cause within the three month period immediately prior to a Change in Control (as defined in the Plan) or during the twelve month period after any such Change in Control (a “Change in Control Termination”),
then provided that Executive executes the Release and allows it to become effective and subject to Section 6.1(c), the Company shall provide the following “Change in Control Severance Benefits”. 

(a) The Severance Benefits described in Section 6.1(b); and 

(b) Notwithstanding anything contained in Executive’s stock option or other equity award agreements to the contrary, upon a
Change in Control Termination, and if such termination occurs after a Change in Control, provided that the Executive’s equity awards have been continued, assumed or substituted for by the Company or the acquirer or the surviving entity in such
Change in Control, then any unvested portion of the equity awards will vest in full. For the purposes of this Agreement, “Change in Control” will have the same meaning and effect as “Change in Control” is defined in the
Company’s 2014 Equity Incentive Plan, as may be amended from time to time. 
 6.5 Termination by Virtue of Death or Disability of
Executive.  
 (a) In the event of Executive’s death while employed pursuant to this Agreement, all obligations
of the parties hereunder shall terminate immediately, and the Company shall, pursuant to the Company’s standard payroll policies, pay to Executive’s legal representatives Executive’s accrued but unpaid salary through the date of death
together with all legally required compensation and benefits payable to Executive based on Executive’s participation in any compensation or benefit plan, program or arrangement through the date of termination. 

 (b) Subject to applicable state and federal law, the Company shall at all times have the
right, upon written notice to Executive, to terminate this Agreement based on Executive’s Disability (as defined below). Termination by the Company of Executive’s employment based on “Disability” shall mean
termination because Executive is unable due to a physical or mental condition to perform the essential functions of Executive’s position with or without reasonable accommodation for one hundred twenty (120) consecutive calendar days in the
aggregate during any twelve (12) month period or based on the written certification by two licensed physicians of the likely continuation of such condition for such period. This definition shall be interpreted and applied consistent with the
Americans with Disabilities Act, the Family and Medical Leave Act, and other applicable law. In the event Executive’s employment is terminated based on Executive’s Disability, Executive will not receive severance payments, or any other
severance compensation or benefit, except that, pursuant to the Company’s standard payroll policies, the Company shall pay to Executive the accrued but unpaid salary of Executive through the date of termination, together with all compensation
and benefits payable to Executive based on Executive’s participation in any compensation or benefit plan, program or arrangement through the date of termination. 

6.6 Notice; Effective Date of Termination.  

(a) Termination of Executive’s employment pursuant to this Agreement shall be effective on the earliest of: 

(i) immediately after the Company gives notice to Executive of Executive’s termination, with or without Cause (except for a
termination for “Cause” under Section 6.2(b)(iv)), unless the Company specifies a later date, in which case, termination shall be effective as of such later date;  

(ii) thirty (30) days after the Company gives notice to Executive of Executive’s termination for Cause under
Section 6.2(b)(iv) and Executive fails to cure such breach; 
 (iii) immediately upon Executive’s death; 

 (iv) ten (10) days after the Company gives notice to Executive of Executive’s termination on account of
Executive’s Disability, unless the Company specifies a later date, in which case, termination shall be effective as of such later date, provided that Executive has not returned to the full time performance of Executive’s duties
prior to such date; or 
 (v) thirty (30) days after Executive gives written notice to the Company of Executive’s
resignation, provided that the Company may set a termination date at any time between the date of notice and the date of resignation, in which case Executive’s resignation shall be effective as of such other date. Executive will receive
compensation through any required notice period. 
 (b) In the event notice of a termination under subsections (a)(i), (iv), and
(v) is given orally, at the other party’s request, the party giving notice must provide written confirmation of such notice within five (5) business days of the request in compliance with the requirement of Section 7.1 below.

 6.7 Cooperation With Company. During Executive’s employment and following
termination of Executive’s employment for any reason, Executive shall reasonably cooperate with the Company in all matters relating to the winding up of Executive’s pending work including, but not limited to, any litigation in which the
Company is involved, and the orderly transfer of any such pending work to such other employees as may be designated by the Company. To the extent Executive is required to spend more than ten (10) total hours following Executive’s
termination , the Company shall reasonably compensate Executive for any additional time spent.  
 6.8 Application of
Section 409A. It is intended that all of the benefits and payments under this Agreement satisfy, to the greatest extent possible, the exemptions from the application of Section 409A of the Internal Revenue Code of 1986, as amended
(the “Code”) provided under Treasury Regulations 1.409A-1(b)(4), 1.409A-1(b)(5) and 1.409A-1(b)(9), and
this Agreement will be construed to the greatest extent possible as consistent with those provisions. If not so exempt, this Agreement (and any definitions hereunder) will be construed in a manner that complies with Section 409A of the Code,
and incorporates by reference all required definitions and payment terms. For purposes of Section 409A of the Code (including, without limitation, for purposes of Treasury Regulation
Section 1.409A-2(b)(2)(iii)), Executive’s right to receive any installment payments under this Agreement (whether severance payments, reimbursements or otherwise) will be treated as a right to
receive a series of separate payments and, accordingly, each installment payment hereunder will at all times be considered a separate and distinct payment. Notwithstanding any provision to the contrary in this Agreement, if Executive is deemed by
the Company at the time of her Separation from Service to be a “specified employee” for purposes of Section 409A(a)(2)(B)(i) of the Code, and if any of the payments upon Separation from Service set forth herein and/or under any other
agreement with the Company are deemed to be “deferred compensation”, then if delayed commencement of any portion of such payments is required to avoid a prohibited distribution under Section 409A(a)(2)(B)(i) of the Code and the
related adverse taxation under Section 409A of the Code, the timing of the payments upon a Separation from Service will be delayed as follows: on the earlier to occur of (i) the date that is six months and one day after the effective date
of Executive’s Separation from Service, and (ii) the date of Executive’s death (such earlier date, the “Delayed Initial Payment Date”), the Company will (A) pay to Executive a lump sum amount equal to the
sum of the payments upon Separation from Service that Executive would otherwise have received through the Delayed Initial Payment Date if the commencement of the payments had not been delayed pursuant to this paragraph, and (B) commence paying
the balance of the payments in accordance with the applicable payment schedules set forth above. No interest will be due on any amounts so deferred. 

6.9 Parachute Taxes. 

(a) If any payment or benefit Executive would receive from the Company or otherwise in connection with a Change in Control or other
similar transaction (“Payment”) would (i) constitute a “parachute payment” within the meaning of Section 280G of the Code, and (ii) but for this sentence, be subject to the excise tax imposed by Section 4999
of 

 
the Code (the “Excise Tax”), then such Payment will be equal to the Reduced Amount. The “Reduced Amount” will be either (x) the
largest portion of the Payment that would result in no portion of the Payment being subject to the Excise Tax, or (y) the largest portion, up to and including the total, of the Payment, whichever amount ((x) or (y)), after taking into account
all applicable federal, state and local employment taxes, income taxes, and the Excise Tax (all computed at the highest applicable marginal rate), results in Executive’s receipt of the greater economic benefit notwithstanding that all or some
portion of the Payment may be subject to the Excise Tax. If a Reduced Amount will give rise to the greater after tax benefit, the reduction in the Payments will occur in the following order: (a) reduction of cash payments; (b) cancellation
of accelerated vesting of equity awards other than stock options; (c) cancellation of accelerated vesting of stock options; and (d) reduction of other benefits paid to Executive. Within any such category of payments and benefits (that is,
(a), (b), (c) or (d)), a reduction will occur first with respect to amounts that are not “deferred compensation” within the meaning of Section 409A of the Code and then with respect to amounts that are “deferred
compensation” within the meaning of Section 409A of the Code. In the event that acceleration of compensation from Executive’s equity awards is to be reduced, such acceleration of vesting will be canceled, subject to the immediately
preceding sentence, in the reverse order of the date of grant. 
 (b) The registered public accounting firm engaged by
the Company for general audit purposes as of the day prior to the effective date of the event described in Section 280G(b)(2)(A)(i) of the Code will perform the foregoing calculations. If the registered public accounting firm so engaged by the
Company is serving as accountant or auditor for the acquirer or is otherwise unable or unwilling to perform the calculations, the Company will appoint a nationally recognized firm that has expertise in these calculations to make the determinations
required hereunder. The Company will bear all expenses with respect to the determinations by such independent registered public accounting firm required to be made hereunder. The Company will use reasonable efforts to cause firm engaged to make the
determinations hereunder will provide its calculations, together with detailed supporting documentation, to the Company and Executive within 30 calendar days after the date on which Executive’s right to a Payment is triggered (if requested at
that time by the Company or Executive) or such other time as reasonably requested by the Company or Executive. Any good faith determinations of the independent registered public accounting firm made hereunder will be final, binding and conclusive
upon the Company and Executive. 
 7. GENERAL PROVISIONS. 

7.1 Notices. Any notices required hereunder to be in writing shall be deemed effectively given: (a) upon personal delivery
to the party to be notified, (b) when sent by electronic mail or confirmed facsimile if sent during normal business hours of the recipient, and if not, then on the next business day, (c) five (5) days after having been sent by
registered or certified mail, return receipt requested, postage prepaid, or (d) one (1) day after deposit with a nationally recognized overnight courier, specifying next day delivery, with written verification of receipt. All
communications shall be sent to the Company, “Attention Chairman of the Board,” at its primary office location and to Executive at Executive’s address as listed on the Company payroll, or at such other address as the Company or
Executive may designate by ten (10) days advance written notice to the other. 

 7.2 Severability. Whenever possible, each provision of this Agreement will be
interpreted in such manner as to be effective and valid under applicable law, but if any provision of this Agreement is held to be invalid, illegal or unenforceable in any respect under any applicable law or rule in any jurisdiction, such
invalidity, illegality or unenforceability will not affect any other provision or any other jurisdiction, but this Agreement will be reformed, construed and enforced in such jurisdiction as if such invalid, illegal or unenforceable provisions had
never been contained herein. 
 7.3 Waiver. If either party should waive any breach of any provisions of this Agreement,
Executive or the Company shall not thereby be deemed to have waived any preceding or succeeding breach of the same or any other provision of this Agreement. 

7.4 Complete Agreement. This Agreement constitutes the entire agreement between Executive and the Company with regard to the
subject matter hereof. This Agreement is the complete, final, and exclusive embodiment of their agreement with regard to this subject matter and supersedes any prior oral discussions or written communications and agreements. This Agreement is
entered into without reliance on any promise or representation other than those expressly contained herein, and it cannot be modified or amended except in writing signed by Executive and an authorized officer of the Company. The parties have entered
into a separate CIIA, and have or may enter into separate agreements related to stock awards. These separate agreements govern other aspects of the relationship between the parties, have or may have provisions that survive termination of
Executive’s employment under this Agreement, may be amended or superseded by the parties without regard to this Agreement and are enforceable according to their terms without regard to the enforcement provision of this Agreement. 

7.5 Counterparts. This Agreement may be executed in separate counterparts, any one of which need not contain signatures of more
than one party, but all of which taken together will constitute one and the same Agreement. 
 7.6 Headings. The headings of
the sections hereof are inserted for convenience only and shall not be deemed to constitute a part hereof nor to affect the meaning thereof. 

7.7 Successors and Assigns. This Agreement is intended to bind and inure to the benefit of and be enforceable by Executive and
the Company, and their respective successors, assigns, heirs, executors and administrators, except that Executive may not assign any of her duties hereunder and he may not assign any of her rights hereunder without the written consent of the
Company, which shall not be withheld unreasonably. 
 7.8 Choice of Law. All questions concerning the construction, validity
and interpretation of this Agreement will be governed by the law of the State of Connecticut, without giving effect to choice of law principles.  

7.9 Resolution of Disputes. The parties recognize that litigation in federal or state courts or before federal or state
administrative agencies of disputes arising out of Executive’s employment with the Company or out of this Agreement, or Executive’s termination of employment or termination of this Agreement, may not be in the best interests of either 

 
Executive or the Company, and may result in unnecessary costs, delays, complexities, and uncertainty. The parties agree that any dispute between the parties arising out of or relating to the
negotiation, execution, performance or termination of this Agreement or Executive’s employment, including, but not limited to, any claim arising out of this Agreement, claims under Title VII of the Civil Rights Act of 1964, as amended, the
Civil Rights Act of 1991, the Age Discrimination in Employment Act of 1967, the Americans with Disabilities Act of 1990, Section 1981 of the Civil Rights Act of 1966, as amended, the Family Medical Leave Act, the Employee Retirement Income
Security Act, and any similar federal, state or local law, statute, regulation, or any common law doctrine, whether that dispute arises during or after employment, shall be settled by binding arbitration in accordance with the National Rules for the
Resolution of Employment Disputes of the American Arbitration Association; provided however, that this dispute resolution provision shall not apply to any separate agreements between the parties that do not themselves specify
arbitration as an exclusive remedy. The location for the arbitration shall be in Fairfield County, Connecticut. Any award made by such panel shall be final, binding and conclusive on the parties for all purposes, and judgment upon the award rendered
by the arbitrators may be entered in any court having jurisdiction thereof. The arbitrators’ fees and expenses and all administrative fees and expenses associated with the filing of the arbitration shall be borne by the Company;
provided however, that at Executive’s option, Executive may voluntarily pay up to one-half the costs and fees. The parties acknowledge and agree that their obligations to arbitrate under this Section survive the termination
of this Agreement and continue after the termination of the employment relationship between Executive and the Company. The parties each further agree that the arbitration provisions of this Agreement shall provide each party with its exclusive
remedy, and each party expressly waives any right it might have to seek redress in any other forum, except as otherwise expressly provided in this Agreement. By election arbitration as the means for final settlement of all claims, the parties
hereby waive their respective rights to, and agree not to, sue each other in any action in a Federal, State or local court with respect to such claims, but may seek to enforce in court an arbitration award rendered pursuant to this Agreement. The
parties specifically agree to waive their respective rights to a trial by jury, and further agree that no demand, request or motion will be made for trial by jury. 

IN WITNESS WHEREOF, the parties have executed this Executive Employment
Agreement on the day and year first written above. 
  

					
	CARA THERAPEUTICS, INC.	 		 	EXECUTIVE:
			
	/s/ Derek Chalmers, Ph.D., D.Sc.	 		 	/s/ Mani Mohindru, Ph.D.
	(Signature)	 		 	(Signature)
			
	By: Derek Chalmers, Ph.D., D.Sc.	 		 	By: Mani Mohindru, Ph.D.
	Title: President & CEO	 		 	

 Exhibit A 

CFO POSITION DESCRIPTION 
 In this
position, you will be a strategic partner to the President and Chief Executive Officer and will work closely with the CEO, management team, and members of the Board of Directors to further create and build value at the Company. As CFO and Chief
Strategy Officer, you will have primary responsibility for planning, implementing, managing and controlling all financial-related activities of the Company, which include overall responsibility for finance, accounting, treasury, tax, foreign
exchange, forecasting and strategic planning, particularly with respect to investor relations (IR). You will also: 
  

	 	•	 	Ensure that effective internal controls are in place and ensure effective cost controls and compliance with GAAP and applicable federal, state and local regulatory laws and rules for financial and tax reporting.

  

	 	•	 	Work closely with the CEO, Audit Committee of the Board of Directors, outside accountants and outside counsel in the preparation and coordination of all timely and accurate public company filings and documents.

  

	 	•	 	Ensure audit coordination and public reporting in the U.S. under GAAP (principal accounting officer for SEC filings). 

  

	 	•	 	Establish and manage key banking relationships. 

  

	 	•	 	Act to provide oversight of financial operations to include regular financial statements, income statements, balance sheets and cash flow statements, and the reporting of operational results as required to management,
the Board of Directors, public shareholders and the SEC. 

  

	 	•	 	Work with the CEO and management team in preparing presentations to the Board of Directors, investors and other stakeholders and work to effectively represent the Company both internally and externally to the investor
and business communities, including the Board of Directors, investors, partners, auditors, regulators and advisors. 

  

	 	•	 	In coordination with the CEO, design and implement on overall IR strategy which will aim to derive a more institutionally – related investor base and coordinate NDR activity which will raise Cara’s profile
amongst the investment community. 

  

	 	•	 	Participate in Cara’s business development activities related to out-licensing and in-licensing agreements as needed. 

 Exhibit B 

Cara Therapeutics, Inc., At Will Employment, Confidential Information, Invention 

Assignment, And Arbitration Agreement 

 Exhibit C 

Release Agreement 
 This
Release Agreement (“Release”) is made by and between Cara Therapeutics, Inc. (the “Company”) and Mani Mohindru (“you”). You and the Company entered into an Employment Agreement dated July
    , 2017 (the “Employment Agreement”). You and the Company hereby further agree as follows: 
 1. A
blank copy of this Release was attached to the Employment Agreement as Exhibit C. 
 2. Severance Payments. In connection with
your separation from the Company, you are eligible for certain severance payments under Section 6 of the Employment Agreement for a termination without Cause and a Change in Control Termination. In consideration for your execution, return and
non-revocation of this Release, following the Release Date (as defined in Section 3 below) the Company will provide severance benefits, in accordance with Section 6 of the Employment Agreement, to you as follows: 

(i) an amount equal to your current Base Salary for a period of nine (9) months following the Release Date (such applicable period is
referred to as the “Severance Period”), less applicable withholdings and deductions, on the Company’s regular payroll dates; 

(ii) an amount equal to 50% of the Target Bonus that you were eligible to receive during the year in which you were terminated without Cause
(if any) prorated for any partial year of employment on the basis of a 365-day year, payable in a lump sum on the date Target Bonuses are normally paid to other executives at the Company, but in no event later than March 15 of the year
following the year for which the Target Bonus is paid; and 
 (iii) provided you timely elect and remain eligible for continued coverage
under COBRA, the Company will pay you COBRA premiums for the coverage that you and your eligible dependents had at the time of the separation from the Company until the earliest of: (x) six (6) months following the separation from
the Company; (y) the date when you become eligible for substantially equivalent health insurance coverage in connection with new employment or self-employment; or (z) the date you cease to be eligible for COBRA continuation coverage for
any reason; and 
 (iv) Notwithstanding anything contained in Executive’s stock option or other equity award agreements to the
contrary, upon a Change in Control Termination, if such termination occurs after a Chang in Control and provided that the Executive’s equity awards have been continued, assumed or substituted for by the Company or the acquirer or
the surviving entity in such Change in Control, then any unvested portion of the equity awards will vest in full. For the purposes of this Agreement, “Change in Control” will have the same meaning and effect as “Change in
Control” is defined in the Company’s 2014 Equity Incentive Plan, as may be amended from time to time.

  
 1. 

 3. Release by You. In exchange payments and other consideration under this Agreement, to
which you would not otherwise be entitled, and except as otherwise set forth in this Agreement, you, on behalf of yourself and, to the extent permitted by law, on behalf of your spouse, heirs, executors, administrators, assigns, insurers, attorneys
and other persons or entities, acting or purporting to act on your behalf (collectively, the “Employee Parties”), hereby generally and completely release, acquit and forever discharge the Company, its parents and subsidiaries, and its and
their officers, directors, managers, partners, agents, representatives, employees, attorneys, shareholders, predecessors, successors, assigns, insurers and affiliates (the “Company Parties”) of and from any and all claims, liabilities,
demands, contentions, actions, causes of action, suits, costs, expenses, attorneys’ fees, damages, indemnities, debts, judgments, levies, executions and obligations of every kind and nature, in law, equity, or otherwise, both known and unknown,
suspected and unsuspected, disclosed and undisclosed, arising out of or in any way related to agreements, events, acts or conduct at any time prior to and including the execution date of this Agreement, including but not limited to: all such claims
and demands directly or indirectly arising out of or in any way connected with your employment with the Company or the termination of that employment; claims or demands related to salary, bonuses, commissions, stock, stock options, or any other
ownership interests in the Company, vacation pay, fringe benefits, expense reimbursements, severance pay, or any other form of compensation; claims pursuant to any federal, state or local law, statute, or cause of action; tort law; or contract law
(individually a “Claim” and collectively “Claims”). The Claims you are releasing and waiving in this Agreement include, but are not limited to, any and all Claims that any of the Company Parties: 

 

	 	•	 	has violated its personnel policies, handbooks, contracts of employment, or covenants of good faith and fair dealing; 

  

	 	•	 	has discriminated against you on the basis of age, race, color, sex (including sexual harassment), national origin, ancestry, disability, religion, sexual orientation, marital status, parental status, source of income,
entitlement to benefits, any union activities or other protected category in violation of any local, state or federal law, constitution, ordinance, or regulation, including but not limited to: the Age Discrimination in Employment Act, as amended
(“ADEA”); Title VII of the Civil Rights Act of 1964, as amended; the Civil Rights Act of 1991; 42 U.S.C. § 1981, as amended; the Equal Pay Act; the Americans With Disabilities Act; the Genetic Information Nondiscrimination Act;
the Family and Medical Leave Act; the Connecticut Fair Employment Practices Act; the Employee Retirement Income Security Act; the Employee Polygraph Protection Act; the Worker Adjustment and Retraining Notification Act; the Older Workers Benefit
Protection Act; the anti-retaliation provisions of the Sarbanes-Oxley Act, or any other federal or state law regarding whistleblower retaliation; the Lilly Ledbetter Fair Pay Act; the Uniformed Services Employment and Reemployment Rights Act; the
Fair Credit Reporting Act; and the National Labor Relations Act; or 

  

	 	•	 	has violated any statute, public policy or common law (including but not limited to Claims for retaliatory discharge; negligent hiring, retention or supervision; defamation; intentional or negligent infliction of
emotional distress and/or mental anguish; intentional interference with contract; negligence; detrimental reliance; loss of consortium to you or any member of your family and/or promissory estoppel). 

 Notwithstanding the foregoing, other than events expressly contemplated by this Agreement you do not waive or
release rights or Claims that may arise from events that occur after the date this waiver is executed. Also excluded from this Agreement are any Claims which cannot be waived by law, including, without limitation, any rights you may have under
applicable workers’ compensation laws and your right, if applicable, to file or participate in an investigative proceeding of any federal, state or local governmental agency. Nothing in this Agreement shall prevent you from filing, cooperating
with, or participating in any proceeding or investigation before the Equal Employment Opportunity Commission, United States Department of Labor, the National Labor Relations Board, the Occupational Safety and Health Administration, the Securities
and Exchange Commission or any other federal government agency, or similar state or local agency (“Government Agencies”), or exercising any rights pursuant to Section 7 of the National Labor Relations Act. You further understand this
Agreement does not limit your ability to voluntarily communicate with any Government Agencies or otherwise participate in any investigation or proceeding that may be conducted by any Government Agency, including providing documents or other
information, without notice to the Company. While this Agreement does not limit your right to receive an award for information provided to the Securities and Exchange Commission, you understand and agree that, you are otherwise waiving, to the
fullest extent permitted by law, any and all rights you may have to individual relief based on any Claims that you have released and any rights you have waived by signing this Agreement. If any Claim is not subject to release, to the extent
permitted by law, you waive any right or ability to be a class or collective action representative or to otherwise participate in any putative or certified class, collective or multi-party action or proceeding based on such a Claim in which any of
the Company Parties is a party. This Agreement does not abrogate your existing rights under any Company benefit plan or any plan or agreement related to equity ownership in the Company; however, it does waive, release and forever discharge Claims
existing as of the date you execute this Agreement pursuant to any such plan or agreement. 
 4. Your Acknowledgments and Affirmations /
Effective Date of Agreement. You acknowledge that you are knowingly and voluntarily waiving and releasing any and all rights you may have under the ADEA, as amended. You also acknowledge and agree that (i) the consideration given to you in
exchange for the waiver and release in this Agreement is in addition to anything of value to which you were already entitled, and (ii) that you have been paid for all time worked, have received all the leave, leaves of absence and leave
benefits and protections for which you are eligible, and have not suffered any on-the-job injury for which you have not already filed a Claim. You affirm that all of the decisions of the Company Parties regarding your pay and benefits through the
date of your execution of this Agreement were not discriminatory based on age, disability, race, color, sex, religion, national origin or any other classification protected by law. You affirm that you have not filed or caused to be filed, and are
not presently a party to, a Claim against any of the Company Parties. You further affirm that you have no known workplace injuries or occupational diseases. You acknowledge and affirm that you have not been retaliated against for reporting any
allegation of corporate fraud or other wrongdoing by any of the Company Parties, or for exercising any rights protected by law, including any rights protected by the Fair Labor Standards Act, the Family Medical Leave Act or

 
any related statute or local leave or disability accommodation laws, or any applicable state workers’ compensation law. You further acknowledge and affirm that you have been advised by this
writing that: (a) your waiver and release do not apply to any rights or Claims that may arise after the execution date of this Agreement; (b) you have been advised hereby that you have the right to consult with an attorney prior to
executing this Agreement; (c) you have been given [twenty-one (21)/forty-five (45)] days to consider this Agreement (although you may choose to voluntarily execute this Agreement earlier and if you do you will sign the Consideration
Period waiver below); (d) you have seven (7) days following your execution of this Agreement to revoke this Agreement; and (e) this Agreement shall not be effective until the date upon which the revocation period has expired
unexercised (the “Effective Date”), which shall be the eighth day after this Agreement is executed by you. 
 5.
Return of Company Property. Within ten (10) days of the effective date of the termination of employment, you agree to return to the Company all Company documents (and all copies thereof) and other Company property then in existence that you
have had in your possession at any time, including, but not limited to, Company files, notes, drawings, records, business plans and forecasts, financial information, specifications, computer-recorded information, tangible property (including, but
not limited to, computers), credit cards, entry cards, identification badges and keys; and, any materials of any kind that contain or embody any proprietary or confidential information of the Company (and all reproductions thereof). Receipt of
the Severance described in paragraph 2 of this Release expressly conditioned upon return of all such Company Property. 
 6.
Confidentiality. The provisions of this Release will be held in strictest confidence by you and will not be publicized or disclosed in any manner whatsoever; provided, however, that: (a) you may disclose this Agreement in confidence
to your immediate family; (b) you may disclose this Agreement in confidence to your attorney, accountant, auditor, tax preparer, and financial advisor; and (c) you may disclose this Release insofar as such disclosure may be required by
law. Notwithstanding the foregoing, nothing in this Agreement shall limit your right to voluntarily communicate with the Equal Employment Opportunity Commission, United States Department of Labor, the National Labor Relations Board, the Securities
and Exchange Commission, other federal government agency or similar state or local agency or to discuss the terms and conditions of your employment with others to the extent expressly permitted by Section 7 of the National Labor Relations Act.

 7. Proprietary Information and Post-Termination Obligations. You acknowledge your continuing obligations to the Company under the
CIIA. Proprietary and/or confidential information that is also a “trade secret,” as defined by law, may be disclosed (A) if it is made (i) in confidence to a federal, state, or local government official, either
directly or indirectly, or to an attorney and (ii) solely for the purpose of reporting or investigating a suspected violation of law; or (B) is made in a complaint or other document filed in a lawsuit or other proceeding, if such filing is
made under seal. In addition, in the event that you file a lawsuit for retaliation by the Company for reporting a suspected violation of law, you may disclose the trade secret to your attorney and use the trade secret information in the court
proceeding, if you: (A) file any document containing the trade secret under seal; and (B) do not disclose the trade secret, except pursuant to court order. 

 8. Non-Disparagement. You agree not to disparage the Company, and the Company’s
attorneys, directors, managers, partners, employees, agents and affiliates, in any manner likely to be harmful to them or their business, business reputation or personal reputation; provided that you may respond accurately and fully to any question,
inquiry or request for information when required by legal process. Notwithstanding the foregoing, nothing in this Agreement shall limit your right to voluntarily communicate with the Equal Employment Opportunity Commission, United States Department
of Labor, the National Labor Relations Board, the Securities and Exchange Commission, other federal government agency or similar state or local agency or to discuss the terms and conditions of your employment with others to the extent expressly
permitted by Section 7 of the National Labor Relations Act.  
 9. No Admission. This Agreement does not constitute an
admission by the Company of any wrongful action or violation of any federal, state, or local statute, or common law rights, including those relating to the provisions of any law or statute concerning employment actions, or of any other possible or
claimed violation of law or rights. 
 10. Breach. You agree that upon any material breach of this Release you will forfeit all
amounts paid or owing to you under this Release. Further, you acknowledge that it may be impossible to assess the damages caused by your material violation of the terms of paragraphs 5, 6, 7 and 8 of this Release and further agree that any
threatened or actual material violation or breach of those paragraphs of this Release will constitute immediate and irreparable injury to the Company. You therefore agree that any such breach of this Release is a material breach of this Agreement,
and, in addition to any and all other damages and remedies available to the Company upon your breach of this Agreement, the Company shall be entitled to an injunction to prevent you from violating or breaching this Agreement. 

11. Miscellaneous. This Release, together with your Non-Competition Agreement and your Confidential Information Agreement, constitute
the complete, final and exclusive embodiment of the entire agreement between you and the Company with regard to this subject matter. It is entered into without reliance on any promise or representation, written or oral, other than those expressly
contained herein, and it supersedes any other such promises, warranties or representations. This Release may not be modified or amended except in a writing signed by both you and a duly authorized officer of the Company. This Release will bind the
heirs, personal representatives, successors and assigns of both you and the Company, and inure to the benefit of both you and the Company, their heirs, successors and assigns. If any provision of this Release is determined to be invalid or
unenforceable, in whole or in part, this determination will not affect any other provision of this Agreement and the provision in question will be modified by the court so as to be rendered enforceable. This Release will be deemed to have been
entered into and will be construed and enforced in accordance with the laws of the State of Connecticut as applied to contracts made and performed entirely within the State of Connecticut. 

									
	CARA THERAPEUTICS, INC.	 		 	
					
	By:	 	 	 		 		 	 
		 	 Derek Chalmers, Ph.D., D.Sc.

President & CEO
	 		 		 	Date

  

									
	EXECUTIVE	 		 	
				
	 	 		 		 	 
		 	        Mani Mohindru, Ph.D.	 		 		 	DateEX-4.6

 Exhibit 4.6 
  

					
	 

	 		  	CLIFFORD CHANCE US LLP

 Dated as of [●], 20[●] 

HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC., 

as Issuer 
 and 

U.S. BANK NATIONAL ASSOCIATION, 

as Trustee 
  

 
 INDENTURE 

 
  

 CROSS-REFERENCE TABLE 

 

					
	 Trust Indenture Act Section
	  	Indenture
Section	 
	310(a)(1)	  	 	7.10	 
	 (a)(2)
	  	 	7.10	 
	 (a)(3)
	  	 	N.A.	 
	 (a)(4)
	  	 	N.A.	 
	 (a)(5)
	  	 	7.10	 
	 (b)
	  	 	7.08; 7.10	 
	311(a)	  	 	7.11	 
	 (b)
	  	 	7.11	 
	 (c)
	  	 	N.A.	 
	312(a)	  	 	2.07	 
	 (b)
	  	 	12.04	 
	 (c)
	  	 	12.04	 
	313(a)	  	 	7.06	 
	 (b)
	  	 	7.06	 
	 (c)
	  	 	7.06; 12.03	 
	 (d)
	  	 	7.06	 
	314(a)	  	 	4.02; 4.04	 
	 (b)
	  	 	N.A.	 
	 (c)(1)
	  	 	12.05	 
	 (c)(2)
	  	 	12.05	 
	 (c)(3)
	  	 	N.A.	 
	 (d)
	  	 	N.A.	 
	 (e)
	  	 	12.05	 
	 (f)
	  	 	12.05	 
	315(a)	  	 	7.01(b)	
	 (b)
	  	 	7.05; 12.03	 
	 (c)
	  	 	7.01(a)	 
	 (d)
	  	 	7.01(c)	 
	 (e)
	  	 	6.13	 
	316(a) (last sentence)	  	 	12.06	 
	 (a)(1)(A)
	  	 	6.05	 
	 (a)(1)(B)
	  	 	6.04	 
	 (a)(2)
	  	 	N.A.	 
	 (b)
	  	 	6.08	 
	 (c)
	  	 	12.03	 
	317(a)(1)	  	 	6.09	 
	 (a)(2)
	  	 	6.10	 
	 (b)
	  	 	2.06	 
	318(a)	  	 	12.03	 

  
 N.A. means
Not Applicable 

  
 - i - 

 TABLE OF CONTENTS 

 

							
	 	  	Page	 
	ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE	  	 	1	 
			
	 Section 1.01.
	 	Definitions	  	 	1	 
			
	 Section 1.02.
	 	Incorporation by Reference of Trust Indenture Act	  	 	3	 
			
	 Section 1.03.
	 	Rules of Construction	  	 	3	 
		
	ARTICLE II THE SECURITIES	  	 	4	 
			
	 Section 2.01.
	 	Form and Dating	  	 	4	 
			
	 Section 2.02.
	 	Amount Unlimited; Issuable in Series	  	 	4	 
			
	 Section 2.03.
	 	Denominations	  	 	5	 
			
	 Section 2.04.
	 	Execution and Authentication	  	 	5	 
			
	 Section 2.05.
	 	Registrar and Paying Agent	  	 	5	 
			
	 Section 2.06.
	 	Paying Agent to Hold Money in Trust	  	 	6	 
			
	 Section 2.07.
	 	Securityholder Lists	  	 	6	 
			
	 Section 2.08.
	 	Transfer and Exchange	  	 	6	 
			
	 Section 2.09.
	 	Replacement Securities	  	 	7	 
			
	 Section 2.10.
	 	Outstanding Securities	  	 	8	 
			
	 Section 2.11.
	 	Temporary Securities	  	 	8	 
			
	 Section 2.12.
	 	Cancellation	  	 	8	 
			
	 Section 2.13.
	 	Defaulted Interest	  	 	8	 
			
	 Section 2.14.
	 	CUSIP Numbers	  	 	9	 
		
	ARTICLE III REDEMPTION	  	 	9	 
			
	 Section 3.01.
	 	Company’s Option to Redeem	  	 	9	 
			
	 Section 3.02.
	 	Notices to Trustee	  	 	9	 
			
	 Section 3.03.
	 	Selection of Securities to be Redeemed	  	 	9	 
			
	 Section 3.04.
	 	Notice of Redemption at the Company’s Option	  	 	9	 
			
	 Section 3.05.
	 	Effect of Notice of Redemption	  	 	10	 
			
	 Section 3.06.
	 	Deposit of Redemption Price	  	 	10	 
			
	 Section 3.07.
	 	Holder’s Right to Require Redemption	  	 	11	 
			
	 Section 3.08.
	 	Procedure for Requiring Redemption	  	 	11	 
			
	 Section 3.09.
	 	Securities Redeemed in Part	  	 	11	 
		
	ARTICLE IV COVENANTS	  	 	11	 
			
	 Section 4.01.
	 	Payment of Securities	  	 	11	 

  
 - ii - 

							
	 Section 4.02.
	 	Reporting	  	 	12	 
			
	 Section 4.03.
	 	Corporate Existence	  	 	12	 
			
	 Section 4.04.
	 	Compliance Certificate	  	 	12	 
			
	 Section 4.05.
	 	Further Instruments and Acts	  	 	12	 
		
	ARTICLE V SUCCESSOR CORPORATION	  	 	13	 
			
	 Section 5.01.
	 	Company may Consolidate, etc., only on Certain Terms	  	 	13	 
			
	 Section 5.02.
	 	Successor Corporation Substituted	  	 	13	 
		
	ARTICLE VI DEFAULTS AND REMEDIES	  	 	13	 
			
	 Section 6.01.
	 	Events of Default	  	 	13	 
			
	 Section 6.02.
	 	Acceleration	  	 	15	 
			
	 Section 6.03.
	 	Other Remedies	  	 	15	 
			
	 Section 6.04.
	 	Waiver of Existing Defaults	  	 	15	 
			
	 Section 6.05.
	 	Control by Majority	  	 	16	 
			
	 Section 6.06.
	 	Payments of Securities on Default; Suit Therefor	  	 	16	 
			
	 Section 6.07.
	 	Limitation on Suits	  	 	16	 
			
	 Section 6.08.
	 	Rights of Holders to Receive Payment and to Demand Conversion	  	 	17	 
			
	 Section 6.09.
	 	Collection Suit by Trustee	  	 	17	 
			
	 Section 6.10.
	 	Trustee May File Proofs of Claim	  	 	17	 
			
	 Section 6.11.
	 	Restoration of Positions	  	 	17	 
			
	 Section 6.12.
	 	Priorities	  	 	17	 
			
	 Section 6.13.
	 	Undertaking for Costs	  	 	18	 
			
	 Section 6.14.
	 	Stay, Extension or Usury Laws	  	 	18	 
			
	 Section 6.15.
	 	Liability of Stockholders, Officers, Directors and Incorporators	  	 	18	 
		
	ARTICLE VII TRUSTEE	  	 	19	 
			
	 Section 7.01.
	 	Duties of Trustee	  	 	19	 
			
	 Section 7.02.
	 	Rights of Trustee	  	 	20	 
			
	 Section 7.03.
	 	Individual Rights of Trustee	  	 	21	 
			
	 Section 7.04.
	 	Trustee’s Disclaimer	  	 	21	 
			
	 Section 7.05.
	 	Notice of Defaults	  	 	21	 
			
	 Section 7.06.
	 	Reports by Trustee	  	 	22	 
			
	 Section 7.07.
	 	Compensation and Indemnity	  	 	22	 
			
	 Section 7.08.
	 	Replacement of Trustee	  	 	23	 
			
	 Section 7.09.
	 	Successor Trustee by Merger, Etc	  	 	24	 
			
	 Section 7.10.
	 	Eligibility; Disqualification	  	 	24	 
			
	 Section 7.11.
	 	Preferential Collection of Claims	  	 	24	 

  
 - iii - 

							
	ARTICLE VIII DISCHARGE OF INDENTURE	  	 	24	 
			
	 Section 8.01.
	 	Termination of the Company’s Obligations	  	 	24	 
			
	 Section 8.02.
	 	Application of Trust Money	  	 	25	 
			
	 Section 8.03.
	 	Repayment to the Company	  	 	25	 
		
	ARTICLE IX AMENDMENTS, SUPPLEMENTS AND WAIVERS	  	 	26	 
			
	 Section 9.01.
	 	Without Consent of Holders	  	 	26	 
			
	 Section 9.02.
	 	With Consent of Holders	  	 	26	 
			
	 Section 9.03.
	 	Compliance with Trust Indenture Act	  	 	27	 
			
	 Section 9.04.
	 	Revocation and Effect of Consents	  	 	27	 
			
	 Section 9.05.
	 	Notation on or Exchange of Securities	  	 	27	 
			
	 Section 9.06.
	 	Trustee to Sign Amendments, Etc	  	 	28	 
		
	ARTICLE X CONVERSION OR EXCHANGE OF SECURITIES	  	 	28	 
			
	 Section 10.01.
	 	Provisions Relating to Conversion or Exchange of Securities	  	 	28	 
		
	ARTICLE XI SINKING OR PURCHASE FUNDS	  	 	28	 
			
	 Section 11.01.
	 	Provisions Relating to Sinking or Purchase Funds	  	 	28	 
		
	ARTICLE XII MISCELLANEOUS	  	 	29	 
			
	 Section 12.01.
	 	Trust Indenture Act Controls	  	 	29	 
			
	 Section 12.02.
	 	Supplemental Indentures Contract	  	 	29	 
			
	 Section 12.03.
	 	Notices	  	 	29	 
			
	 Section 12.04.
	 	Communication by Holders with Other Holders	  	 	30	 
			
	 Section 12.05.
	 	Certificate and Opinion as to Conditions Precedent	  	 	30	 
			
	 Section 12.06.
	 	When Treasury Securities Disregarded	  	 	31	 
			
	 Section 12.07.
	 	Rules by Trustee, Paying Agent, Registrar	  	 	31	 
			
	 Section 12.08.
	 	Legal Holidays	  	 	31	 
			
	 Section 12.09.
	 	Governing Law and Submission to Jurisdiction; Waiver of Jury Trial	  	 	31	 
			
	 Section 12.10.
	 	Actions by the Company	  	 	31	 
			
	 Section 12.11.
	 	No Adverse Interpretation of Other Agreements	  	 	32	 
			
	 Section 12.12.
	 	Successors	  	 	32	 
			
	 Section 12.13.
	 	Duplicate Originals	  	 	32	 
			
	 Section 12.14.
	 	Table of Contents, Headings, etc	  	 	32	 
			
	 Section 12.15.
	 	U.S.A. PATRIOT Act	  	 	32	 
			
	 Section 12.16.
	 	Force Majeure	  	 	32	 

  
 - iv - 

 This INDENTURE, dated as of [●], 20[●] between HANNON ARMSTRONG SUSTAINABLE
INFRASTRUCTURE CAPITAL, INC. (the “Company”), a Maryland corporation having its principal office at 1906 Towne Centre Blvd Suite 370, Annapolis, MD 21401, and U.S. BANK NATIONAL ASSOCIATION (the “Trustee”), a
national banking association organized under the laws of the United States of America which has its corporate trust office at 225 Asylum Street, 23rd Floor, Hartford, CT 06103. 

Each party agrees as follows for the benefit of each other party and for the equal and ratable benefit of the Holders of the Company’s
debentures, notes or other evidences of unsecured indebtedness to be issued in one or more series (“Securities”): 

ARTICLE I 
 DEFINITIONS
AND INCORPORATION BY REFERENCE 
 Section 1.01.    Definitions. 

“Board Resolution” means a resolution by the Board of Directors, or other body with analogous authority with respect to the
Company or any duly authorized Committee of the Board of Directors or such body, certified by its Secretary or an Assistant Secretary as being duly adopted and in full force and effect. 

“Business Day” means each Monday, Tuesday, Wednesday, Thursday and Friday which is not a Legal Holiday. 

“Common Stock” means the common stock, par value $0.01 per share, of the Company, as that stock may be reconstituted from
time to time. 
 “Company” means the Person named as such in this Indenture until a successor replaces it and after that
means the successor. 
 “Corporate Trust Office” means the designated office of the Trustee at which at any time its
corporate trust business shall be administered, which office at the date hereof is located at for purposes of presentment, surrender, registration, transfer and exchange in respect of the Securities is located at 111 Fillmore Avenue, St. Paul, MN
55107, Attention: Hannon Armstrong Sustainable Infrastructure Capital, Inc., and for all other purposes is located at 225 Asylum Street, 23rd Floor, Hartford, CT 06103, Attention: Hannon Armstrong
Sustainable Infrastructure Capital, Inc., or such other address as the Trustee may designate from time to time by notice to the Holders and the Issuer, or the principal corporate trust office of any successor Trustee (or such other address as such
successor Trustee may designate from time to time by notice to the Holders and the Issuer). 
 “Corporation” includes
corporations, associations, companies and business trusts. 
 “Custodian” has the meaning provided in Section 6.01.

 “Default” means any event which, upon the giving of notice or passage of time, or both, would be an Event of Default.

  
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 “$” means the lawful currency of the United States. 

“Event of Default” has the meaning provided in Section 6.01. 

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

“Fiscal Year” means the period commencing on January 1 of a year and ending on the next December 31 or such other
period (not to exceed 12 months or 53 weeks) as the Company may from time to time adopt as its fiscal year. 
 “Holder” or
“Securityholder” means a Person in whose name a Security is registered on the Registrar’s books. 

“Indenture” means this Indenture as amended or supplemented from time to time and will include the form and terms of the
Securities of each series established as contemplated by Section 2.01. 
 “Interest Payment Date” means the date on
which an installment of interest on the Securities is due and payable. 
 “Legal Holiday” has the meaning provided in
Section 12.08. 
 “Maturity Date” means the date the principal of Securities is due and payable. 

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

“Officers’ Certificate” when used with respect to the Company means a certificate signed by two Officers. Each such
certificate will comply with Section 314 of the TIA and include the statements described in Section 12.05. 
 “Opinion of
Counsel” means a written opinion from legal counsel which is reasonably acceptable to the Trustee. That counsel may be an employee of or counsel to the Company. Each such opinion will include the statements described in Section 12.05
if and to the extent required by that Section. 
 “Paying Agent” has the meaning provided in Section 2.05. 

“Person” means any individual, corporation, limited liability company, partnership, joint venture, joint-stock company,
trust, unincorporated organization or government or any government agency or political subdivision. 
 “Registrar” has the
meaning provided in Section 2.05. 
 “SEC” means the Securities and Exchange Commission. 

“Securities” has the meaning provided in the recitals to this Indenture. 

  
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 “State” means any state of the United States or the District of Columbia. 

“Subsidiary” means, with respect to the Company, any Person (other than an individual), a majority of the outstanding voting
stock, partnership interests, membership interests or other equity interest, as the case may be, of which is owned or controlled, directly or indirectly, by the Company or one or more other Subsidiaries of the Company. For the purposes of this
definition, “voting stock” means stock having voting power for the election of directors, trustees or managers, as the case may be, whether at all times or only so long as no senior class of stock has such voting power by reason of any
contingency. 
 “Supplemental Indenture” means an indenture between the Company and the Trustee which supplements this
Indenture. 
 “TIA” means the Trust Indenture Act of 1939, as amended, as in effect on the date of this Indenture. 

“Trustee” means the Person named as such in this Indenture and, subject to the provisions of Article VII, any successor to
that person. 
 “Trust Officer” means any officer within the corporate trust department of the Trustee, including any vice
president, assistant vice president, assistant secretary, assistant treasurer, trust officer or any other officer of the Trustee who customarily performs functions similar to those performed by the Persons who at the time shall be such officers,
respectively, or to whom any corporate trust matter is referred because of such person’s knowledge of and familiarity with the particular subject and who shall have direct responsibility for the administration of this Indenture. 

“United States” means the United States of America. 

Section 1.02.    Incorporation by Reference of Trust Indenture Act. Whenever this Indenture refers to a
provision of the TIA, the provision is incorporated by reference in and made a part of this Indenture. In addition, the provisions of Sections 310 to and including 317 of the TIA that impose duties on any person are incorporated by reference in, and
form a part of, this Indenture. 
 The following TIA terms mean the following when used in this Indenture: “Commission”
means the SEC; “indenture securities” means the Securities; “indenture security holder” means a Holder; “indenture to be qualified” means this Indenture; “indenture trustee” or
“institutional trustee” means the Trustee; and “obligor” on the indenture securities means the Company. 

All other TIA terms used in this Indenture that are defined in the TIA, defined in the TIA by reference to another statute or defined by SEC
rule have the meanings assigned to them. 
 Section 1.03.    Rules of Construction. Unless the context
otherwise requires: 
 (a)    a term has the meaning assigned to it; 

  
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 (b)    an accounting term not otherwise defined has the meaning assigned to
it in accordance with generally accepted accounting principles in the United States; 
 (c)    “or” is not
exclusive; and 
 (d)    words in the singular include the plural, and in the plural include the singular. 

ARTICLE II 
 THE
SECURITIES 
 Section 2.01.    Form and Dating. 

(a)    The Securities of each series will be substantially in the form established by a Supplemental Indenture relating to
the Securities of that series. The Securities may have notations, legends or endorsements required by law, stock exchange rules or usage. The Company will approve the form of the Securities and any notation, legend or endorsement on them. Each
Security will be dated the date of its authentication. 
 (b)    The Trustee’s certificate of authentication will
be substantially in the form of Exhibit A. 
 Section 2.02.    Amount Unlimited; Issuable in Series. The
aggregate principal amount of the Securities which may be authenticated and delivered under this Indenture is unlimited. 
 The Securities
may be issued in one or more series. Prior to the issuance of Securities of a series, the Company and the Trustee will execute a Supplemental Indenture which will set forth as to the Securities of that series, to the extent applicable: 

(a)    the title of the Securities; 

(b)    any limit upon the aggregate principal amount of Securities which may be issued; 

(c)    the date or dates on which the Securities will mature and the amounts to be paid upon maturity of the Securities;

 (d)    the rate or rates (which may be fixed or variable) at which the Securities will bear interest, if any, the
dates from which interest will accrue, the dates on which interest will be payable and the record date for the interest payable on any interest payment date; 

(e)    the currency or currencies in which principal, premium, if any, and interest, if any, will be payable; 

(f)    the place or places where principal of, premium, if any, and interest, if any, on the Securities will be payable;

  
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 (g)    any provisions regarding the right of the Company to redeem Securities
or of holders to require the Company to redeem Securities; 
 (h)    the right, if any, of holders of the Securities to
convert them into stock or other securities of the Company, including any provisions intended to prevent dilution of those conversion rights; 

(i)    any provisions by which the Company will be required or permitted to make payments to a sinking fund which will be
used to redeem Securities or a purchase fund which will be used to purchase Securities; 
 (j)    the percentage of the
principal amount of the Securities which is payable if maturity of the Securities is accelerated because of a default; and 

(k)    any other terms of the Securities. 

Section 2.03.    Denominations. Unless otherwise provided in the Supplemental Indenture relating to a series
of Securities, the Securities of each series will be issuable in registered form without coupons, in denominations of $1,000 and any integral multiple thereof unless otherwise specified as to any series in the applicable Supplemental Indenture. 

Section 2.04.    Execution and Authentication. Two Officers will sign the Securities of each series for the
Company by manual or facsimile signature. If an Officer whose signature is on a Security no longer holds office at the time the Trustee authenticates the Security, the Security will be valid nonetheless. 

A Security will not be valid until an authorized signatory of the Trustee manually signs the certificate of authentication on the Security.
The signature will be conclusive evidence that the Security has been authenticated under this Indenture. 

Section 2.05.    Registrar and Paying Agent. The Company will maintain an office or agency where Securities of
each series may be presented for conversion, registration of transfer or for exchange (the “Registrar”) and an office or agency where Securities of each series may be presented for payment (“Paying Agent”). The
Registrar will keep a register of the Securities of each series and of their transfer and exchange. The Company may have one or more co-registrars and one or more additional paying agents. The term
“Paying Agent” includes any additional paying agent. 
 The Company will enter into an appropriate agency agreement with any
Registrar, Paying Agent or co-registrar not a party to this Indenture which will incorporate the terms of the TIA. The agreement will implement the provisions of this Indenture that relate to that agent. The
Company will notify the Trustee of the name and address of any such agent. If the Company fails to maintain a Registrar or Paying Agent, the Trustee will act as such. The Company or any Subsidiary may act as Paying Agent, Registrar, co-registrar or transfer agent. 
 The Company initially appoints the Trustee to act as Registrar and
Paying Agent in connection with the Securities of each series, except in instances in which the Supplemental Indenture relating to a series of Securities appoints a different Registrar or Paying Agent. In

  
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acting hereunder and in connection with the Securities, the Paying Agent and Registrar shall act solely as agents of the Company, and will not thereby assume any obligations towards or
relationship of agency or trust for or with any Holder of any Series of Securities. 
 Section 2.06.    Paying
Agent to Hold Money in Trust. Prior to each due date of the principal of, premium, if any, or interest, if any, on any Security, the Company will deposit with the Paying Agent a sum sufficient to pay that principal, premium or interest when due.
The Paying Agent will hold in trust for the benefit of the Holders of the Securities of a series, and if the Paying Agent is not the Trustee, in trust for the benefit of the Trustee, all sums held by the Paying Agent for the payment of principal,
premium or interest on the Securities of that series and, in the case of a Paying Agent other than the Trustee, the Paying Agent will give the Trustee notice of any default by the Company in making any such payment. If the Company or a Subsidiary
acts as Paying Agent, it will segregate the money held by it as Paying Agent and hold it as a separate trust fund. The Company at any time may require a Paying Agent to pay all money held by it to the Trustee and to account for any funds disbursed
by the Paying Agent. Upon complying with this Section, the Paying Agent will have no further liability for the money. 

Section 2.07.    Securityholder Lists. The Trustee will preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of the Holders of the Securities of each series. If the Trustee is not the Registrar, the Company will furnish to the Trustee in writing (a) at least five Business Days
before each Interest Payment Date and (b) at such other times as the Trustee may request in writing, all information in the possession or control of the Company or its Paying Agent as to the names and addresses of Holders of the Securities of a
series; provided, however, that if the provisions of (a) and (b) do not provide for the furnishing of such information at stated intervals of not more than six months, at least as frequently as semiannually. 

Section 2.08.    Transfer and Exchange. Unless otherwise provided in the Supplemental Indenture relating to
Securities of a series, Securities which are issued in registered form will be transferred only upon the surrender of the Securities for registration of transfer. When a Security is presented to the Registrar or a
co-registrar with a request to register a transfer, the Registrar will register the transfer as requested if the requirements of Article VIII of the New York Uniform Commercial Code are met. When Securities
are presented to the Registrar or a co-registrar with a request to exchange them for an equal principal amount of Securities of the same series of other denominations, the Registrar will make the exchange as
requested if the same requirements are met. To permit registration of transfers and exchanges, the Company will execute and, upon receipt of written direction from the Company, the Trustee will authenticate Securities at the Registrar’s or co-registrar’s request. The Company will not charge a fee for transfers or exchanges. 
 The Company
will not be required to make, and the Registrar need not register, transfers or exchanges of (i) Securities selected for redemption (except, in the case of Securities to be redeemed in part, transfers or exchanges of the portion of the
Securities not to be redeemed) or (ii) any Securities of a series for a period of 15 days before the first mailing of a notice of the Securities of that series which are to be redeemed. 

  
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 Prior to the due presentation for registration or transfer of any Security which was issued in
registered form, the Company, the Trustee, the Paying Agent, the Registrar or any co-registrar may deem and treat the person in whose name the Security is registered as the absolute owner of the Security for
all purposes, and none of the Company, the Trustee, the Paying Agent, the Registrar or any co-registrar will be affected by notice to the contrary. 

Neither the Trustee nor any Agent shall have any responsibility or liability for any actions taken or not taken by the depository. The Trustee
shall have no responsibility or obligation to any beneficial owner of a Global Security, a member of, or a participant in the Depositary or any other Person with respect to the accuracy of the records of the Depositary or its nominee or of any
participant or member thereof, with respect to any ownership interest in the Securities or with respect to the delivery to any participant, member, beneficial owner or other Person (other than the Depositary) of any notice (including any notice of
redemption or repurchase) or the payment of any amount, under or with respect to such Securities. All notices and communications to be given to the Holders of the Securities and all payments to be made to Holders under the Securities shall be given
or made only to the registered Holders of the Securities (which shall be the Depositary or its nominee in the case of a Global Security). The rights of beneficial owners in any Global Security shall be exercised only through the Depositary subject
to the applicable rules and procedures of the Depositary. The Trustee may rely and shall be fully protected in relying upon information furnished by the Depositary with respect to its members, participants and any beneficial owners. 

The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under
this Indenture or under applicable law with respect to any transfer of any interest in any Security (including any transfers between or among participants in the Depositary or beneficial owners of interests in any Global Security) other than to
require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of, this Indenture, and to examine the same to determine substantial compliance as to
form with the express requirements hereof. 
 Section 2.09.    Replacement Securities. If a mutilated
Security which had been issued in registered form is surrendered to the Registrar or if the Holder presents evidence to the satisfaction of the Company and the Trustee that a Security which had been issued in registered form has been lost or
destroyed, the Company will issue and, upon receipt of written direction from the Company, the Trustee will authenticate a replacement Security of the same series if the requirements of Section 8-405 of
the New York Uniform Commercial Code are met and the Holder satisfies any other reasonable requirements of the Trustee. The replacement Security will not be issued until the Holder furnishes an indemnity bond sufficient in the judgment of the
Company and the Trustee to protect the Company, the Trustee, the Paying Agent and the Registrar or any co-registrar from any loss which any of them may suffer if the Security is replaced. The Company may
charge the Holder for its expenses in replacing a Security. 
 Every replacement Security will be an obligation of the Company, even if the
replaced Security is subsequently found. 

  
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 Section 2.10.    Outstanding Securities. The Securities
outstanding at any time will be all the Securities authenticated by the Trustee, except those cancelled by it, those delivered to it for cancellation and those described in this Section as not outstanding. A Security does not cease to be outstanding
because the Company or its affiliate holds the Security. 
 If a Security is replaced pursuant to Section 2.09, it ceases to be
outstanding unless the Trustee and the Company receive proof satisfactory to them that the replaced Security is held by a protected purchaser (in which case the replaced Security will be treated as outstanding to the extent permitted by Section 8-210 of the New York Uniform Commercial Code). 
 If the Paying Agent (other than the
Company or a Subsidiary) segregates and holds in trust, in accordance with this Indenture, on a redemption date or Maturity Date money sufficient to pay all principal, premium, if any, and interest, if any, payable on that date with respect to the
Securities to be redeemed or maturing, as the case may be, then on that date those Securities will cease to be outstanding and interest on them will cease to accrue. 

Section 2.11.    Temporary Securities. Until definitive Securities of a series are ready for delivery, the
Company may prepare and, upon receipt of written direction from the Company, the Trustee will authenticate temporary Securities of that series. Temporary Securities will be substantially in the form of definitive Securities but may have variations
that the Company considers appropriate for temporary Securities. Without unreasonable delay, the Company will prepare and, upon receipt of written direction from the Company, the Trustee will authenticate definitive Securities and deliver them in
exchange for temporary Securities. 
 Section 2.12.    Cancellation. The Company at any time may deliver
Securities of a series to the Trustee for cancellation and the Trustee will reduce accordingly the aggregate amount of the Securities of that series which are outstanding. The Registrar and the Paying Agent will forward to the Trustee any Securities
surrendered to them for registration of transfer, exchange, payment, or conversion. The Trustee and no one else will cancel and dispose of (subject to the record retention requirements of the Exchange Act) all Securities surrendered for registration
of transfer, exchange, payment, conversion or cancellation and deliver evidence of such disposal to the Company. Subject to Section 2.09, the Company may not issue new Securities of a series to replace Securities of the series it has redeemed,
paid, converted or delivered to the Trustee for cancellation. 
 Section 2.13.    Defaulted Interest. If the
Company defaults in a payment of interest on the Securities of a series, it will pay defaulted interest (plus interest on such defaulted interest to the extent lawful) to the persons who are Holders of the Securities of that series on a subsequent
special record date, which date will be at least five Business Days prior to the payment date. The Company will fix the special record date and payment date, and, at least 15 days before the special record date, the Company will mail to each Holder
of Securities of that series a notice that states the special record date, the payment date and the amount of defaulted interest and any interest on that defaulted interest which is to be paid. Notwithstanding the foregoing, the Company may pay
defaulted interest in any other lawful manner. 

  
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 Section 2.14.    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 the Trustee shall have no liability for any
defect in the “CUSIP” numbers as they appear on the any Security, notice or elsewhere, and, provided further 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 identification numbers printed on the Securities, and any such redemption shall not be affected by any defect in or omission of such numbers.
The Company will promptly notify the Trustee in writing of any change in the “CUSIP” numbers. 
 ARTICLE III 

REDEMPTION 

Section 3.01.    Company’s Option to Redeem. The Company will have the option to redeem Securities of a
series only to the extent, if any, and only on the terms, set forth in the Supplemental Indenture relating to the Securities of that series. If the Company has the option to redeem Securities of a series, unless otherwise provided in the
Supplemental Indenture relating to the series, the terms of the redemption will include those set forth in Sections 3.02 through 3.06. 

Section 3.02.    Notices to Trustee. If the Company elects to redeem Securities of a series, it will notify
the Trustee of the redemption date and the principal amount and series of Securities to be redeemed. The Company will give each notice provided for in this Section at least 15 days before the redemption date. If fewer than all the Securities of a
series are to be redeemed, the record date for determining which Securities of the series are to be redeemed will be selected by the Company, which will give notice of the record date to the Trustee at least 5 days before the record date. 

Section 3.03.    Selection of Securities to be Redeemed. If fewer than all the Securities of a series are to
be redeemed at the Company’s option, the Trustee will select the Securities of that series to be redeemed by lot or, in its sole discretion, pro-rata or in accordance with the customary procedures of the
depository. The Trustee will make the selection from outstanding Securities of that series not previously called for redemption. The Trustee may select for redemption portions of the principal of Securities that have denominations larger than the
minimum denomination in which Securities of the applicable series may be issued. Securities and portions of Securities the Trustee selects will be in amounts equal to the minimum denomination in which Securities of the applicable series may be
issued and multiples of that amount. Provisions of this Indenture that apply to Securities called for redemption also apply to portions of Securities called for redemption. The Trustee will notify the Company promptly of the Securities or portions
of Securities to be redeemed. 
 Section 3.04.    Notice of Redemption at the Company’s Option. At
least 10 days and not more than 60 days before a date set for redemption at the Company’s option, the Company will mail a notice of redemption by first-class mail to each Holder of Securities to be redeemed in whole or in part. 

  
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 The notice will identify the principal amount and series of each Security (including the CUSIP
number) to be redeemed and will state: 
 (a)    the redemption date; 

(b)    the redemption price plus accrued interest, if any; 

(c)    the name and address of the Paying Agent; 

(d)    that Securities called for redemption in whole or in part must be surrendered to the Paying Agent to collect the
redemption price plus accrued interest, if any; 
 (e)    any conditions precedent to such redemption; 

(f)    that (subject to any applicable conditions precedent), unless the Company defaults in making the redemption
payment, interest on Securities (or portions of Securities) called for redemption will cease to accrue on the redemption date and, if applicable, that those Securities (or the portions of then called for redemption) will cease on the redemption date
(or such other date as is provided in the Supplemental Indenture relating to the Securities) to be convertible into, or exchangeable for, other securities or assets; 

(g)    if applicable, the current conversion or exchange price; and 

(h)    that no representation is made as to the correctness or accuracy of the CUSIP number, if any, listed in such notice
or printed on the Securities. 
 At the Company’s request, pursuant to an Officers’ Certificate delivered to the Trustee at least
15 days prior to the redemption date, the Trustee will give the notice of redemption in the Company’s name and at the Company’s expense. In such event, the Company will provide the Trustee with the information required by clauses
(a) through (c), (e) and (g). 
 Section 3.05.    Effect of Notice of Redemption. Once notice of
redemption is mailed, Securities, or portions of Securities called for redemption will become due and payable on the redemption date and at the redemption price. Notice of redemption may, at the Company’s option and discretion, be subject to
one or more conditions precedent. Subject to any such conditions precedent, (i) upon surrender to the Paying Agent, those Securities will be paid at the redemption price, plus accrued and unpaid interest to the redemption date, and (ii) on
and after the date fixed for redemption (unless the Company defaults in the payment of the redemption price, together with interest accrued to the redemption date) interest on the Securities, or portions of them, which are redeemed will cease to
accrue and any right to convert those Securities into, or exchange them for, other securities or assets will terminate and those Securities will cease to be convertible or exchangeable. Failure to give notice or any defect in the notice to any
Holder will not affect the validity of the notice to any other Holder. 
 Section 3.06.    Deposit of Redemption
Price. No later than 10:00 a.m. Eastern Time on the redemption date specified in a notice of redemption, the Company will deposit with the Paying Agent (or, if the Company or a Subsidiary is the Paying Agent, segregate and hold in trust) money
sufficient to redeem on the redemption date all the Securities called for redemption 

  
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on that redemption date at the appropriate redemption price, together with accrued interest to the redemption date, other than Securities or portions of Securities called for redemption which
have been delivered by the Company to the Trustee for cancellation or Securities which have been surrendered for conversion or exchange. If any Securities called for redemption are converted or exchanged, any money deposited with the Paying Agent
for redemption of those Securities will be paid to the Company upon its request, or, if the money is held in trust by the Company or a Subsidiary as Paying Agent, the money will be discharged from the trust. 

Section 3.07.    Holder’s Right to Require Redemption. Holders of Securities of a series will have the
right to require the Company to redeem those Securities only to the extent, and only on the terms, set forth in the Supplemental Indenture relating to the Securities of that series. If Holders of Securities of a series have the right to require the
Company to redeem those Securities, unless otherwise provided in the Supplemental Indenture relating to the Securities of that series, the terms of the redemption will include those set forth in Section 3.08. 

Section 3.08.    Procedure for Requiring Redemption. If a Holder has the right to require the Company to
redeem Securities, to exercise that right, the Holder must deliver the Securities to the Paying Agent, endorsed for transfer and with the form on the reverse side entitled “Option to Require Redemption” completed. Delivery of Securities to
the Paying Agent as provided in this Section will constitute an irrevocable election to cause the specified principal amount of Securities to be redeemed. When Securities are delivered to the Paying Agent as provided in this Section, unless the
Company fails to make the payments due as a result of the redemption within 20 days after the Securities are delivered to the Paying Agent as provided in this Section interest on the Securities will cease to accrue and, if the Securities are
convertible or exchangeable, the Holder’s right to convert or exchange the Securities will terminate. 
 The Company’s
determination of all questions regarding the validity, eligibility (including time of receipt) and acceptance of any Security for redemption will be final and binding. 

Section 3.09.    Securities Redeemed in Part. Upon surrender of a Security that is redeemed in part, the
Company will execute and the Trustee will authenticate and deliver to the Holder (at the Company’s expense) a new Security equal of the same series in principal amount equal to the unredeemed portion of the Security which was surrendered. 

ARTICLE IV 
 COVENANTS

 Section 4.01.    Payment of Securities. The Company will promptly pay or cause to be paid the
principal of, premium, if any, and interest, if any, on each of the Securities of a series at the places and time and in the manner provided in the Securities and in the Supplemental Indenture relating to the series. An installment of principal,
premium or interest will be considered paid on the date it is due if the Trustee or Paying Agent holds on that date in accordance with this Indenture or the applicable Supplemental Indenture money designated for and sufficient to pay the installment
then due. 

  
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 The Company will pay or cause to be paid interest on overdue principal at the rate specified in
the Securities; it will also pay interest on overdue installments of interest at the same rate (or such other rate as is provided in the applicable Supplemental Indenture), to the extent lawful. 

Section 4.02.    Reporting. 

(a)    To the extent any Securities of a series are outstanding, the Company shall deliver to the Trustee within 15 days
after it files them with the SEC copies of the annual reports and of the information, documents, and other reports (or copies of such portions of any of the foregoing as the SEC may by rules and regulations prescribe) which the Company is required
to file with the SEC pursuant to Section 13 or 15(d) of the Exchange Act. The Company also shall comply with the other provisions of TIA Section 314(a). Reports, information and documents filed with the SEC via the EDGAR system will be
deemed to be delivered to the Trustee as of the time of such filing via EDGAR for purposes of this Section 4.02. 

(b)    The Trustee shall not be under a duty to review or evaluate any report or information delivered to the Trustee
pursuant to the provisions of this Section 4.02 for the purposes of making such reports available to it and to the Holders of Securities of any Series who may request such information. Delivery of such reports, information and documents to the
Trustee as may be required under this Section 4.02 is for informational purposes only and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information
contained therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Officers’ Certificates). 

Section 4.03.    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, rights (charter and statutory) and franchises; provided, however, that the Company will not be required to preserve any such right or franchise if
the Board of Directors determines that the preservation of the right or franchise is no longer desirable in the conduct of the business of the Company and that its loss will not be disadvantageous in any material respect to the Holders of Securities
of any series. 
 Section 4.04.    Compliance Certificate. The Company will deliver to the Trustee within
120 days after the end of each fiscal year of the Company (which fiscal year ends on December 31) an Officers’ Certificate stating that in the course of the performance by the signers of their duties as Officers of the Company they would
normally have knowledge of any default by the Company and whether or not the signers know of any default that occurred during the fiscal year. If they do, the certificate will describe the default, its status and what action the Company is taking or
proposes to take with respect thereto. The Company also will comply with TIA Section 314(a)(4). 

Section 4.05.    Further Instruments and Acts. Upon request of the Trustee, the Company will execute and
deliver such further instruments and do such further acts as may be reasonably necessary or proper to carry out more effectively the purpose of this Indenture. 

  
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 ARTICLE V 

SUCCESSOR CORPORATION 

Section 5.01.    Company May Consolidate, Etc., Only on Certain Terms. The Company will not consolidate with
or merge into any other corporation or convey, transfer or lease its properties and assets substantially as an entirety to any person, unless: 

(a)    the corporation formed by the consolidation or into which the Company is merged or the person which acquires by
conveyance or transfer, or which leases, the properties and assets of the Company substantially as an entirety will be a corporation organized and existing under the laws of the United States of America, a State of the United States of America or
the District of Columbia and expressly assumes, by a one or more supplemental indentures, executed and delivered to the Trustee, in form satisfactory to the Trustee, the due and punctual payment of the principal of, premium, if any, and interest, if
any, on all the Securities of each series and the performance of every covenant of this Indenture and of all Supplemental Indentures to be performed or observed by the Company; 

(b)    immediately after giving effect to the transaction, no Event of Default, and no event which, after notice or lapse
of time or both, would become an Event of Default, will have occurred and be continuing; and 
 (c)    the Company has
delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that the consolidation, merger, conveyance, transfer or lease and the supplemental indenture (or the supplemental indentures together) comply with this
Article and that all the conditions precedent relating to the transaction set forth in this Section have been fulfilled. 

Section 5.02.    Successor Corporation Substituted. Upon any event described in Section 5.01, the
successor corporation will succeed to, and be substituted for, and may exercise every right and power of, the Company under this Indenture and all the Supplemental Indentures relating to outstanding series of Securities, and the predecessor
corporation will be relieved of all obligations and covenants under this Indenture and each of those Supplemental Indentures. 
 ARTICLE
VI 
 DEFAULTS AND REMEDIES 

Section 6.01.    Events of Default. An “Event of Default” occurs if: 

(a)    The Company defaults in the payment of interest on any Security of any series when it becomes due and payable and
the default continues for a period of 30 days (or such other period, which may be no period) as is specified in the Supplemental Indenture relating to the series; 

(b)    The Company defaults in the payment of the principal of, or premium, if any, on any Security of any series as and
when it becomes due and payable at its stated maturity or upon redemption, acceleration or otherwise and, if provided in the Supplemental Indenture relating to a series, the default continues for a period specified in the Supplemental Indenture;

  
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 (c)    The Company fails to comply with any of its other covenants or
agreements with regard to Securities of a series or this Indenture (other than a covenant or agreement, a default in whose performance or whose breach is dealt with specifically elsewhere in this Section) and that failure continues for a period of
60 days after the date of the notice specified below; 
 (d)    the Company, pursuant to any Bankruptcy Law applicable
to the Company: 
 (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 any substantial part of its property; or 

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

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

(i)    for relief in an involuntary case; 

(ii)    appointing a Custodian of the Company or for any substantial part of its property; or 

(iii)    ordering its winding up or liquidation; and the order or decree remains unstayed and in effect for 90 days. 

Each of the occurrences described in clauses (a) through (e) will constitute an Event of Default whatever the reason for the occurrence
and whether it is voluntary or involuntary or is effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body. 

The term “Bankruptcy Law” means Title 11 of the United States Code or any similar United States Federal or State law for the
relief of debtors. The term “Custodian” means any receiver, trustee, assignee, liquidator, custodian or similar official under any Bankruptcy Law. 

A Default under clause (c) of this Section is not an Event of Default until the Trustee notifies the Company, or the Holders of at least
25% in principal amount of the then outstanding Securities of a series with regard to which the Company has failed to comply with a covenant or agreement notify the Company and the Trustee, of the Default and the Company does not cure the Default
within 60 days after the giving of the notice. The notice must specify the Default, demand that it be remedied and state that the notice is a “Notice of Default.” 

  
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 A Default under clause (a), (b) or (c) with regard to Securities of a series will not
constitute a Default with regard to Securities of any other series except to the extent, if any, provided in the Supplemental Indenture relating to the other series. 

The Company will deliver to the Trustee, within 20 days after it occurs, written notice in the form of an Officers’ Certificate of any
event of which the Company is aware which with the giving of notice and the lapse of time would become an Event of Default under clause (c), its status and what action the Company is taking or proposes to take with respect to it. 

Section 6.02.    Acceleration. If an Event of Default as to the Securities of a series occurs and is
continuing, unless the principal of all of the Securities of the series has already become due and payable, the Trustee by notice to the Company, or the Holders of at least 25% in aggregate principal amount of the Securities of the series then
outstanding by notice to the Company and the Trustee, may declare the principal of and accrued interest, if any, on all the Securities of the series to be due and payable. Upon such a declaration, that principal and interest will be due and payable
immediately. If an Event of Default specified in Section 6.01(d) or (e) occurs, the principal of, premium, if any, and accrued interest, if any, on all the Securities will automatically become and be immediately due and payable without any
declaration or other act on the part of the Trustee or any Securityholders. The Holders of a majority in principal amount of the Securities of a series then outstanding, on behalf of the Holders of all the Securities of the series, by written notice
to the Trustee may rescind an acceleration and its consequences if all existing Events of Default have been cured or waived except nonpayment of principal, premium, if any, or interest, if any, that has become due solely because of acceleration, and
if the rescission would not conflict with any judgment or decree. No such rescission will affect any subsequent default or impair any consequent right. 

Section 6.03.    Other Remedies. If an Event of Default as to a series occurs and is continuing, the Trustee
may pursue any available remedy to collect the payment of principal of, premium, if any, and interest, if any, on the Securities of the series or to enforce the performance of any provision under this Indenture or any applicable Supplemental
Indenture. 
 The Trustee may maintain a proceeding even if it does not possess any of the Securities or does not produce any of them in the
proceeding. A delay or omission by the Trustee or any Securityholder in exercising any right or remedy accruing upon an Event of Default will not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. No remedy
is exclusive of any other remedy. All available remedies are cumulative. 
 Section 6.04.    Waiver of Existing
Defaults. The Holders of a majority in aggregate principal amount of the Securities of a series then outstanding, on behalf of the Holders of all the Securities of that series, by written notice to the Trustee may consent to the waiver of any
past Default with regard to Securities of the series and its consequences except (i) a default in the payment of interest or premium, if any, on, or the principal of, Securities of the series, or (ii) a default in respect of a covenant or
a provision that under Section 9.02 cannot be modified or amended without the consent of the Holders of all Securities of the series then outstanding. The defaults described in clauses (i) and (ii) in the previous sentence may be waived
with the consent of the Holders of all Securities of the series then outstanding. When a Default or Event of Default is waived, it is deemed cured and not continuing, but no waiver will extend to any subsequent or other Default or impair any
consequent right. 

  
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 Section 6.05.    Control by Majority. The Holders of a majority
in principal amount of the Securities of a series then outstanding may direct the time, method and place of conducting any proceeding for any remedy available to the Trustee with regard to the Securities of that series or of exercising any trust or
power conferred on the Trustee with regard to the Securities of that series. However, the Trustee may refuse to follow any direction that conflicts with law or this Indenture or, subject to Section 7.01, that the Trustee determines is unduly
prejudicial to the rights of other Securityholders (it being understood that the Trustee does not have an affirmative duty to ascertain whether or not any such directions are unduly prejudicial to such Holders) or that would involve the Trustee in
personal liability; provided, however, that the Trustee may take any other action deemed proper by the Trustee that is not inconsistent with such direction. Prior to taking any action as a result of a direction given under this
Section, the Trustee will be entitled to indemnification and/or security satisfactory to it in its sole discretion against all losses and expenses caused by taking or not taking that action. 

Section 6.06.    Payments of Securities on Default; Suit Therefor. The Company covenants that upon the
occurrence of an Event of Default described in Section 6.01(a) or (b), then, upon demand of the Trustee, the Company will pay to the Trustee, for the benefit of the holders of the Securities in all series, the whole amount that will then have
become due and payable on all such Securities for principal, premium, if any, and interest, with interest on the overdue principal and premium, if any, and (to the extent that payment of such interest is enforceable under applicable law) on the
overdue installments of interest at the rate borne by the Securities in all series; and, in addition, such further amount as will be sufficient to cover the costs and expenses of collection, including a reasonable compensation to the Trustee, its
agents, attorneys and counsel, and any expenses or liabilities incurred by the Trustee hereunder other than through its gross negligence or willful misconduct. Until such demand by the Trustee, the Company may pay the principal of and premium, if
any, and interest on the Securities of all series to the registered Holders, whether or not the Securities in that series are overdue. 

Section 6.07.    Limitation on Suits. A Securityholder may not pursue any remedy with respect to this
Indenture unless: 
 (a)    the Holder gives to the Trustee written notice stating that an Event of Default as to a
series is continuing; 
 (b)    the Holders of at least 25% in principal amount of the Securities of the series then
outstanding make a written request to the Trustee to pursue the remedy; 
 (c)    such Holder or Holders offer to the
Trustee security and/or indemnity satisfactory to the Trustee against any loss, liability or expense; 
 (d)    the
Trustee does not comply with the request within 60 days after receipt of the request and the offer of security or indemnity, and the Event of Default has not been waived; and 

  
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 (e)    the Trustee has received no contrary direction from the Holders of a
majority in principal amount of the Securities of the series then outstanding during such 60-day period. 

A Securityholder may not use this Indenture to prejudice the rights of another Holder of the same series of Securities or to obtain a
preference or priority over another Holder of the same series of Securities (it being understood that the Trustee does not have an affirmative duty to ascertain whether or not such actions or forbearances are unduly prejudicial to such Holders).

 Section 6.08.    Rights of Holders to Receive Payment and to Demand Conversion. Notwithstanding any other
provision of this Indenture, the right of any Holder of a Security of any series to receive payment of principal of, premium, if any, and interest, if any, on the Security (and interest on overdue principal and interest on overdue installments of
interest, if any, as provided in Section 4.01), on or after the respective due dates expressed in the Security or, in the case of redemption, on or after the redemption date, or in the case of conversion or exchange, to receive the security
issuable upon conversion or exchange or to institute suit for the enforcement of any such payment, conversion or exchange on or after the applicable due date, redemption date or conversion or exchange date, as the case may be, against the Company,
will not be impaired or affected without the consent of the Holder. 
 Section 6.09.    Collection Suit by
Trustee. If an Event of Default in payment of principal, premium, if any, or interest, if any, specified in clause (a) or (b) of Section 6.01 occurs and is continuing, the Trustee may recover judgment in its own name and as trustee of
an express trust against the Company for the whole amount of principal, premium, if any, and interest remaining unpaid (together with interest on that unpaid interest to the extent lawful) and the amounts provided for in Section 7.07. 

Section 6.10.    Trustee May File Proofs of Claim. The Trustee may file such proofs of claim and other papers
or documents as may be necessary or advisable in order to have the claims of the Trustee and the Holders of the Securities of any or all series allowed in any judicial proceedings relative to the Company, its creditors or its property and, unless
prohibited by law or applicable regulations, may vote on behalf of the Holders in any election of a trustee in bankruptcy or other person performing similar functions, and any Custodian in any such judicial proceeding is hereby authorized by each
Holder to make payments to the Trustee and, if the Trustee consents 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 its counsel, and any other amounts due the Trustee under Section 7.07. 

Section 6.11.    Restoration of Positions. If a judicial proceeding by the Trustee or a Securityholder to
enforce any right or remedy under this Indenture or any Supplemental Indenture is dismissed or decided favorably to the Company, except as otherwise provided in the judicial proceeding, the Company, the Trustee and the Securityholders will be
restored to the positions they would have been in if the judicial proceeding had not been instituted. 

Section 6.12.    Priorities. If the Trustee collects any money pursuant to this Article VI with respect to
Securities of a series, subject to Article XI, it will pay out the money or property in the following order: 

  
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 FIRST: to the Trustee and its attorneys and agents for amounts due under
Section 7.07; 
 SECOND: to Securityholders for amounts due and unpaid on the Securities of the series for principal and
interest, ratably, without preference or priority of any kind, according to the amounts due and payable on the Securities of the series for principal and interest, respectively; and 

THIRD: to the Company. 

The Trustee may fix a record date and payment date for any payment to Holders of Securities of a series pursuant to this Section. At least 15
days before the record date, the Company will mail to each Holder of Securities of the series and the Trustee a notice that states the record date, the payment date and the amount to be paid. 

Section 6.13.    Undertaking for Costs. In any suit for the enforcement of any right or remedy under this
Indenture or any Supplemental Indenture, or in any suit against the Trustee for any action taken or omitted by it as Trustee, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of
the suit, and the court in its discretion may assess reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defenses made by
the party litigant. This Section 6.13 does not apply to a suit by the Trustee, a suit by a Holder pursuant to Section 6.07, or a suit by Holders of in aggregate more than 10% in principal amount of the Securities of a series then
outstanding, or to any suit instituted by any Holder for the enforcement of the payment of the principal of, premium, if any, or interest on any Security held by that Holder on or after the due date provided in the Security or to any suit for the
enforcement of the right to convert or exchange any Security in accordance with the provisions of a Supplemental Indenture applicable to that Security. 

Section 6.14.    Stay, Extension or Usury Laws. The Company agrees (to the extent that it may lawfully do so)
that it will not at any time insist upon, or plead, or in any manner whatsoever claim, and will resist any and all efforts to be compelled to take the benefit or advantage of, any stay or extension law or any usury or other law, wherever enacted,
now or at any subsequent time in force, which would prohibit or forgive the Company from paying all or any portion of the principal of, premium, if any, and/or interest on any of the Securities as contemplated in this Indenture or a Supplemental
Indenture, or which may affect the covenants or performance of this Indenture, and the Company (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law and agrees that it will not hinder, delay or
impede the execution of any power granted to the Trustee in this Indenture or any Supplemental Indenture, but (to the extent that it may lawfully do so) will suffer and permit the execution of any such power as though no such law had been enacted.

 Section 6.15.    Liability of Stockholders, Officers, Directors and Incorporators. No stockholder,
officer, director or incorporator, as such, past, present or future, of the Company, or any of its successor corporations, will have any personal liability in respect of the Company’s obligations under this Indenture or any Securities by reason
of his or its status as such stockholder, officer, director or incorporator; provided, however, that nothing in this Indenture or in the Securities will prevent recourse to and enforcement of the liability of any stockholder or
subscriber to capital stock in respect of shares of capital stock which have not been fully paid up. 

  
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 ARTICLE VII 

TRUSTEE 

Section 7.01.    Duties of Trustee. 

(a)    If an Event of Default has occurred and is continuing, the Trustee will exercise the rights and powers vested in it
by this Indenture and any applicable Supplemental Indenture and use the same degree of care and skill in their exercise as a prudent man would exercise or use under the circumstances in the conduct of his own affairs. 

(b)    Except during the continuance of an Event of Default: 

(i)    the Trustee undertakes to perform such duties and only such duties as are specifically set forth in this Indenture
and any Supplemental Indentures and no implied covenants or obligations will be read into this Indenture or any Supplemental Indenture against the Trustee; and 

(ii)    the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions
expressed in them, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture in the absence of willful misconduct on the Trustee’s part; provided, however, that the Trustee
will examine the certificates and opinions to determine whether or not they substantially conform to the requirements of this Indenture (but need not confirm or investigate the accuracy of mathematical calculations or other facts stated therein).

 (c)    The Trustee may not be relieved from liability for its own grossly negligent action, its own grossly 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 7.01; 
 (ii)    the Trustee will not be liable for any error of judgment made
in good faith by a Trust Officer, unless it is proved that the Trustee was grossly negligent in ascertaining the pertinent facts; 

(iii)    the Trustee will not be liable with respect to any action it takes or omits to take in good faith in accordance
with a direction received by it pursuant to Section 6.05; and 
 (iv)    the Trustee will not be required to
expend or risk its own funds or otherwise incur financial liability in the performance of any of its duties under this Indenture or any Supplemental Indenture or in the exercise of any of its rights or powers, if it has reasonable grounds to believe
repayment of the funds or adequate indemnity and/or security against the risk or liability is not assured to it. 

  
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 (d)    Every provision of this Indenture relating to the conduct or affecting
the liability of or affording protection to the Trustee is subject to the provisions of this Section 7.01 and to the provisions of the TIA. 

(e)    The Trustee may refuse to perform any duty or exercise any right or power unless it receives indemnity and/or
satisfactory to it against any loss, liability or expense. 
 (f)    The Trustee will not be liable for interest on any
money received by it except as the Trustee may agree in writing with the Company. Money and Government Obligations held in trust by the Trustee need not be segregated from other funds or items except to the extent required by law. 

(g)    The Trustee shall not be liable with respect to any action taken or omitted to be taken by it in good faith in
accordance with the written direction of the holders of not less than a majority in principal amount of the Securities at the time outstanding given pursuant to Section 6.05 of this Indenture, relating to the time, method and place of
conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee under this Indenture or any Supplemental Indenture. 

Section 7.02.    Rights of Trustee. 

(a)    The Trustee may conclusively rely on any document believed by it to be genuine and to have been signed or presented
by the proper person. The Trustee need not investigate any fact or matter stated in the document. 
 (b)    Before the
Trustee acts or refrains from acting, it may require an Officers’ Certificate and/or an Opinion of Counsel or both which conforms to Section 12.05. The Trustee will not be liable for any action it takes or omits to take in good faith in
reliance on such an Officers’ Certificate and/or Opinion of Counsel. 
 (c)    The Trustee may act through agents
or attorneys and will not be responsible for the misconduct or negligence of any agent or attorney appointed with due care. 

(d)    The Trustee will 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, except conduct which constitutes willful misconduct or gross negligence. 

(e)    The Trustee may consult with counsel of its selection, and the Trustee will not be liable for any action it takes
or omits in reliance on, and in accordance with, the advice of counsel and in good faith. 
 (f)    The Trustee will not
be required to investigate any facts or matters stated in any document, but if it decides to investigate any matters or facts, the Trustee or its agents or attorneys will be entitled to examine the books, records and premises of the Company at the
expense of the Company, and shall incur no liability or additional liability of any kind by reason of such inquiry or investigation. 

  
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 (g)    The Trustee shall not be deemed to have notice of any Default or Event
of Default unless a Trust 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 a Trustee Officer at the Corporate Trust Office of the Trustee, and such notice
references the Company, Securities and this Indenture. 
 (h)    The rights, privileges, protections, immunities and
benefits given to the Trustee, including, without limitation, its right to be indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and other Person employed to act
hereunder. 
 (i)    In no event shall the Trustee be responsible or liable for special, indirect, punitive or
consequential loss or damage of any kind whatsoever (including, but not limited to, loss of profit) irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action. 

(j)    The permissive right of the Trustee to take any action under this Indenture shall not be construed as a duty to so
act. 
 (k)    The Trustee shall not be required to give any bond or surety in respect of the performance of its powers
and duties hereunder. 
 (l)    The Trustee may request that the Company deliver a certificate setting forth the names
of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture. 

Section 7.03.    Individual Rights of Trustee. The Trustee in its individual or any other capacity may become
the owner or pledgee of Securities and may otherwise deal with the Company or any of its affiliates with the same rights it would have if it were not Trustee. Any Paying Agent, Registrar, co-registrar or co-paying agent may do the same with like rights. However, the Trustee must comply with Sections 7.10 and 7.11. 

Section 7.04.    Trustee’s Disclaimer. The Trustee (i) is not responsible for and makes no
representation as to the validity or adequacy of this Indenture, (ii) will not be responsible for and will not make any representation as to the validity or adequacy of any Supplemental Indenture, (iii) will not be accountable for the
Company’s use of the proceeds from the Securities of any series, and (iv) will not be responsible for any statement of the Company in this Indenture or any Supplemental Indenture, other than the Trustee’s certificate of
authentication, or in any prospectus used in the sale of any of the Securities, other than statements, if any, provided in writing by the Trustee for use in such a prospectus. 

Section 7.05.    Notice of Defaults. The Trustee will give to the Holders of the Securities of a series notice
of any Default with regard to the Securities of that series actually known to a Trust Officer, within 90 days after receipt of such knowledge and in the manner and to the extent provided in TIA Section 313(c), and otherwise as provided in
Section 12.03 of this Indenture; 

  
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provided, however, that, except in the case of a Default in the payment of the principal of, or premium, if any, or interest on any Security, the Trustee will be protected in
withholding notice of the Default if and so long as it in good faith determines that the withholding of the notice is in the interests of the Holders of the Securities of the series. 

Section 7.06.    Reports by Trustee. Within 60 days after each May 15 beginning with the May 15
following the date of this Indenture, the Trustee will mail to each Securityholder, if any, at the name and address which appears on the registration books of the Company, and to each Securityholder who has, within the two years preceding the
mailing, filed that person’s name and address with the Trustee for that purpose and each Securityholder whose name and address have been furnished to the Trustee pursuant to Section 2.07, a brief report dated as of that May 15 which
complies with TIA Section 313(a). Reports to Securityholders pursuant to this Section 7.06 shall be transmitted in the manner and to the extent provided in TIA Section 313(c). The Trustee also will comply with TIA Section 313(b).

 A copy of each report will at the time of its mailing to Securityholders as required be filed with each stock exchange on which
Securities are listed, if any, and also with the SEC. The Company will promptly notify the Trustee in writing when the Securities of any series are listed on any stock exchange and of any delisting of Securities of any series. 

Section 7.07.    Compensation and Indemnity. The Company will pay to the Trustee from time to time such
compensation for its services as mutually agreed to in writing. The Trustee’s compensation will not be limited by any law on compensation of a trustee of an express trust. The Company will reimburse the Trustee upon request for all reasonable out-of-pocket expenses incurred or made by it, including costs of collection, in addition to the compensation for its services. Those expenses will include the reasonable
compensation and expenses, disbursements and advances of the Trustee’s agents, counsel, accountants and experts. The Company will indemnify the Trustee against any and all loss, liability, claims (whether asserted by the Company, a holder or
any other person) or expense (including reasonable attorneys’ fees and expenses) incurred by it in connection with the administration of the trust created by this Indenture or any Supplemental Indenture and the performance of its duties under
this Indenture or any Supplemental Indenture. The Trustee will notify the Company promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Company will not relieve the Company of its obligations under this
Section. The Company will defend the claim, with counsel reasonably satisfactory to the Trustee, and the Trustee may have separate counsel and the Company will pay the fees and expenses of such counsel. The Company need not pay for any settlement
made without its consent. The Company need not reimburse any expense or indemnify against any loss, expense or liability incurred by the Trustee to the extent it is due to the Trustee’s own willful misconduct or gross negligence (as finally
adjudicated by a court of competent jurisdiction). Any settlement which affects the Trustee may not be entered into without the written consent of the Trustee, unless the Trustee is given a full and unconditional release from liability with respect
to the claims covered thereby and such settlement does not include a statement or admission of fault, culpability or failure to act by or on behalf of the Trustee. 

  
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 To secure the Company’s obligation to make payments to the Trustee under this
Section 7.07, the Trustee will have a lien prior to the Securities on all money or property held or collected by the Trustee, other than money or property held in trust to pay principal or interest on particular Securities. Those obligations of
the Company will survive the satisfaction and discharge of this Indenture and the resignation or removal of the Trustee. 
 When the Trustee
incurs expenses or renders services after an Event of Default specified in clause (d) or (e) of Section 6.01 occurs, the expenses and the compensation for the services of the Trustee are intended to constitute expenses of administration
under any Bankruptcy Law. 
 For purposes of this Section 7.07, “Trustee” will include any predecessor Trustee, but the willful
misconduct or gross negligence or bad faith of any Trustee will not affect the rights of any other Trustee under this Section 7.07. 

Section 7.08.    Replacement of Trustee. The Trustee may resign at any time by so notifying the Company. The
Holders of a majority in aggregate principal amount of the Securities of all series then outstanding may remove the Trustee by so notifying the Trustee and the Company and may appoint a successor Trustee. The Company may remove the Trustee if: 

(a)    the Trustee fails to comply with Section 7.10; 

(b)    the Trustee is adjudged bankrupt or insolvent or an order for relief is entered with respect to the Trustee under
any bankruptcy law; 
 (c)    a receiver or other 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 will promptly appoint a
successor Trustee. Within one year after the successor Trustee takes office, the Holders of a majority in aggregate principal amount of Securities of all series then outstanding may appoint a successor Trustee to replace the successor Trustee
appointed by the Company. 
 No removal or appointment of a Trustee will be valid if that removal or appointment would conflict with any law
applicable to the Company. 
 A successor Trustee will deliver a written acceptance of its appointment to the retiring Trustee and to the
Company. Immediately after that, the retiring Trustee will, subject to the lien provided for in Section 7.07, transfer all property held by it as a Trustee to the successor Trustee, the resignation or removal of the retiring Trustee will become
effective, and the successor Trustee will have all the rights, powers and duties of the Trustee under this Indenture and all Supplemental Indentures. A successor Trustee will mail notice of its succession to each Securityholder. 

If a successor Trustee does not take office within 60 days after the retiring Trustee resigns or is removed, the retiring Trustee, the
resigning Trustee, Company or the Holders of a majority in aggregate principal amount of Securities of all series then outstanding may petition any court of competent jurisdiction, at the expense of the Company, for the appointment of a successor
Trustee. 

  
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 If the Trustee fails to comply with Section 7.10, any Securityholder may petition any court
of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee. 
 Notwithstanding the replacement of
the Trustee pursuant to this Section, the Company’s obligations under Section 7.07 will continue for the benefit of the retiring Trustee. 

Section 7.09.    Successor Trustee by Merger, Etc. If the Trustee consolidates with, merges or converts into,
or transfers all or substantially all of its corporate trust assets to, another Person, the resulting, surviving or transferee Person will, without any further act, be the successor Trustee. 

If at the time a successor by merger, conversion or consolidation to the Trustee succeeds to the trusts created by this Indenture any of the
Securities have been authenticated but not delivered, the successor to the Trustee may adopt the certificate of authentication of the predecessor Trustee, and deliver the Securities which were authenticated by the predecessor Trustee; and if at that
time any of the Securities have not been authenticated, the successor to the Trustee may authenticate those Securities in its own name as the successor to the Trustee; and in either case the certificates of authentication will have the full force
provided in this Indenture for certificates of authentication. 
 Section 7.10.    Eligibility;
Disqualification. The Trustee will at all times satisfy the requirements of TIA Section 310(a). The Trustee will at all times have (or shall be a member of a bank holding company system whose parent corporation has) a combined capital and
surplus of at least $50,000,000 as set forth in its most recently published annual report of condition, which will be deemed for this paragraph to be its combined capital and surplus. The Trustee will comply with TIA Section 310(b). 

Section 7.11.    Preferential Collection of Claims. The Trustee will comply with TIA Section 311(a),
excluding any creditor relationship listed in TIA Section 311(b). A Trustee who has resigned or been removed will be subject to TIA Section 311(a) to the extent indicated. 

ARTICLE VIII 
 DISCHARGE
OF INDENTURE 
 Section 8.01.    Termination of the Company’s Obligations. When (i) the
Company delivers to the Trustee all outstanding Securities of all series (other than Securities replaced pursuant to Section 2.09) for cancellation or (ii) all outstanding Securities of all series have become due and payable, or are due
and payable within one year or are to be called for redemption within one year, under arrangements satisfactory to the Trustee for giving the notice of redemption, and the Company irrevocably deposits in trust with the Trustee (subject to
Article XI) money or U.S. Government Obligations sufficient to pay the principal, premium, if any, and interest, if any, on the Securities of all series to maturity or redemption, as the case may be, and if, in the case of either (i) or
(ii) above the Company also pays or causes to be paid all other sums payable by the Company under this Indenture, then this Indenture will cease to be of further effect. 

  
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 Notwithstanding the foregoing, the Company’s obligations to pay principal, premium, if any,
and interest, if any, on the Securities and the Company’s obligations in Sections 2.05, 2.06, 2.07, 2.08, 2.09, 7.07, 7.08 and in Article X will survive until all the Securities of all series are no longer outstanding. Thereafter, the
Company’s obligations in Section 7.07 will survive. 
 Before or after a deposit the Company may make arrangements satisfactory to
the Trustee for the redemption of Securities of a series at a future date to the extent the Securities are redeemable in accordance with Article III and the applicable Supplemental Indenture. 

After a deposit pursuant to this Section 8.01 or after all outstanding Securities of all series have been delivered to the Trustee for
cancellation, the Trustee upon receipt of written request from the Company, accompanied by an Officers’ Certificate and an Opinion of Counsel which complies with Section 12.05, and at the cost of the Company, will acknowledge in writing
the satisfaction and discharge of the Company’s obligations under the Securities of all series and this Indenture except for those surviving obligations specified above. 

In order to have money available on payment dates to pay principal, premium, if any, or interest, if any, on the Securities of a series, the
U.S. Government Obligations will be payable as to principal, premium, if any, or interest on or before those payment dates in amounts sufficient to provide the necessary money. U.S. Government Obligations used for this purpose may not be callable at
the issuer’s option. 
 “U.S. Government Obligations” means: 

(a)    direct obligations of the United States for the payment of which its full faith and credit is pledged; 

or 

(b)    obligations of a person controlled or supervised by and acting as an agency or instrumentality of the United States
the payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States. 

Section 8.02.    Application of Trust Money. Subject to Article XI and Section 8.03, the Trustee will
hold in trust money or U.S. Government Obligations deposited with it pursuant to Section 8.01. It will apply the deposited money and the money from the U.S. Government Obligations through the Paying Agent and in accordance with this Indenture
and any applicable Supplemental Indentures to the payment of principal of, premium, if any, and interest, if any, on the Securities with regard to which the money or U.S. Government Obligations were deposited. 

Section 8.03.    Repayment to the Company. The Trustee and the Paying Agent will promptly pay to the Company
upon receipt of written request any excess money or securities held by them at any time. The Trustee and the Paying Agent will, subject to applicable escheatment laws, pay to the Company upon receipt of written request any money held by them for the
payment of principal, premium or interest that remains unclaimed for two years. After such payment, the Holder of any Securities shall thereafter look to the Company for any payment which such Holder may be entitled to collect, and all liability of
the Trustee and the Paying Agent with respect to that money will cease. 

  
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 ARTICLE IX 

AMENDMENTS, SUPPLEMENTS AND WAIVERS 

Section 9.01.    Without Consent of Holders. The Company and the Trustee may amend or supplement this
Indenture or the Securities without notice to or consent of any Securityholder: 
 (a)    to cure any ambiguity, defect
or inconsistency, or to conform any provision hereof to any provision under the heading “Description of Debt Securities” in the applicable prospectus, in each case as evidenced in an Officers’ Certificate; 

(b)    to comply with Article V; 

(c)    to establish the form and terms of the Securities of any series as contemplated in Article II of this Indenture;

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

(e)    to make any change that does not materially adversely affect the rights of any Securityholder. 

After an amendment under this Section becomes effective, the Company will mail to the Securityholders a notice briefly describing the
amendment. The failure to give such notice to all Securityholders, or any defect in a notice, will not impair or affect the validity of an amendment under this Section. 

Section 9.02.    With Consent of Holders. The Company and the Trustee may (i) amend or supplement this
Indenture or the Securities without notice to any Securityholder but with the written consent of the Holders of a majority in aggregate principal amount of the Securities of all series then outstanding or (ii) supplement this Indenture with
regard to a series of Securities, amend or supplement a Supplemental Indenture relating to a series of Securities, or amend the Securities of a series, without notice to any Securityholder but with the written consent of the Holders of a majority in
aggregate principal amount of the Securities of that series then outstanding. The Holders of a majority in principal amount of the Securities of all series then outstanding may waive compliance by the Company with any provision of this Indenture or
the Securities without notice to any Securityholder. The Holders of a majority in principal amount of the Securities of any series then outstanding may waive compliance with any provision of this Indenture, any Supplemental Indenture or the
Securities of that series with regard to the Securities of that series without notice to any Securityholder. However, without the consent of the Holder so affected, no amendment, supplement or waiver, including a waiver pursuant to
Section 6.04, may: 

  
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 (a)    extend the fixed maturity of any Security, reduce the rate or extend
the time for payment of interest on any Security, reduce the principal amount of any Security or premium, if any, on any Security; 

(b)    impair or affect the right of a Holder to institute suit for the payment of interest, if any, principal or premium,
if any, on the Securities; 
 (c)    change the currency in which the Securities are payable from that specified in the
Securities or in a Supplemental Indenture applicable to the Securities; 
 (d)    impair the right, if any, to convert
the Securities into, or exchange the Securities for, other securities or assets; 
 (e)    reduce the percentage of
Securities required to consent to an amendment, supplement or waiver; 
 (f)    reduce the amount payable upon the
redemption of any Security or change the time at which any Security may or will be redeemed; 
 (g)    modify the
provisions of any Supplemental Indenture with respect to subordination of the Securities of a series in a manner adverse to the Securityholders; or 

(h)    make any change in Section 6.04 or 6.08 or the fourth sentence of this Section. 

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

Section 9.03.    Compliance with Trust Indenture Act. Every amendment or supplement to this Indenture, any
Supplemental Indenture or the Securities will comply with the TIA as then in effect. 

Section 9.04.    Revocation and Effect of Consents. A consent to an amendment, supplement or waiver by a
Holder of a Security will bind 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 the Holder’s Security or portion of a Security. For a revocation to be effective, the Trustee must receive written notice of the revocation before the date the amendment,
supplement or waiver becomes effective. After an amendment, supplement or waiver becomes effective in accordance with its terms, it will bind every Holder of every Security of every series to which it applies. 

Section 9.05.    Notation on or Exchange of Securities. If an amendment changes the terms of a series of
Securities, the Trustee may require the Holder of a Security of the series to deliver the Holder’s Security to the Trustee, who will place an appropriate notation about the amendment, supplement or waiver on the Security and will return it to
the Holder. Alternatively, the Company may, in exchange for the Security, issue, and, upon receipt of a written direction from the Company, the Trustee will authenticate, a new Security that reflects the amendment, supplement or waiver. 

  
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 Section 9.06.    Trustee to Sign Amendments, Etc. The Trustee
will sign any amendment, supplement or waiver authorized pursuant to Article II or this Article IX if the amendment, supplement or waiver does not adversely affect the rights, liabilities or immunities of the Trustee. If it does adversely affect
those rights, liabilities or immunities, the Trustee may but need not sign it. The Company may not sign an amendment or supplement until the amendment or supplement is approved by an appropriate Board Resolution. A Board Resolution authorizing the
creation of one or more series of Securities pursuant to Article II may provide that, prior to the issuance of any such series, any or all terms of such series may be set forth in or determined in the manner provided in an Officers’
Certificate. In executing any Supplemental Indenture permitted by this Article the Trustee shall receive, and shall be fully protected in relying upon, an Officers’ Certificate and an Opinion of Counsel stating that the execution of such
Supplemental Indenture is authorized or permitted by this Indenture and that such Supplemental Indenture is the legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms. 

ARTICLE X 
 CONVERSION
OR EXCHANGE OF SECURITIES 
 Section 10.01.    Provisions Relating to Conversion or Exchange of
Securities. Any rights which Holders of Securities of a series will have to convert those Securities into other securities of the Company or to exchange those Securities for securities of other Persons or other assets, including but not limited
to the terms of the conversion or exchange and the circumstances, if any, under which those terms will be adjusted to prevent dilution or otherwise, will be set forth in a Supplemental Indenture relating to the series of Securities. In the absence
of provisions in a Supplemental Indenture relating to a series of Securities setting forth rights to convert or exchange the Securities of that series into or for other securities or assets, Holders of the Securities of that series will not have any
such rights. 
 ARTICLE XI 

SINKING OR PURCHASE FUNDS 

Section 11.01.    Provisions Relating to Sinking or Purchase Funds. Any requirements that the Company make, or
rights of the Company to make at its option, payments prior to maturity of the Securities of a series which will be used as a fund with which to redeem or to purchase Securities of that series, including but not limited to provisions regarding the
amount of the payments, when the Company will be required, or will have the option, to make the payments and when the payments will be applied, will be set forth in a Supplemental Indenture relating to the series of Securities. In the absence of
provisions in a Supplemental Indenture relating to a series of Securities setting forth requirements that the Company make, or rights of the Company to make at its option, payments to be used as a fund with which to redeem or purchase Securities of
the series, the Company will not be subject to any such requirements and will not have any such rights. However, unless otherwise specifically provided in a Supplemental Indenture relating to a series of Securities, the Company will at all times
have the right to purchase Securities from Holders in market transactions or otherwise. 

  
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 ARTICLE XII 

MISCELLANEOUS 

Section 12.01.    Trust Indenture Act Controls. If any provision of this Indenture or any Supplemental
Indenture limits, qualifies or conflicts with the duties imposed by Sections 310 through 317 of the TIA, the imposed duties will control. 

Section 12.02.    Supplemental Indentures Contract. If any provision of a Supplemental Indenture relating to a
series of Securities is inconsistent with any provision of this Indenture, the provision of the Supplemental Indenture will control with regard to the Securities of the series to which it relates. 

Section 12.03.    Notices. Any notice or communication under or relating to this Indenture or any Supplemental
Indenture will be sufficiently given if in writing and delivered in person, emailed to the address that follows or mailed by first-class mail, certified or registered, overnight delivery return receipt requested, addressed as follows: 

 

					
	 	if to the Company:	 	  	Hannon Armstrong Sustainable Infrastructure Capital, Inc.
				  	1906 Towne Centre Blvd, Suite 370
				  	Annapolis, MD 21401
				  	Attention: Office of the General Counsel
		
				  	With a copy to:
		
				  	Clifford Chance US LLP
				  	31 West 52nd Street
				  	New York, NY 10019
				  	Attention: Jay L. Bernstein
		
	 	if to the Trustee:	 	  	U.S. Bank, National Association,
				  	225 Asylum Street, 23rd Floor,
				  	Hartford, CT 106103
				  	Attention: Global Corporate Trust Services

 Either the Company or the Trustee by a notice to the other may designate additional or different addresses for
subsequent notices or communications. 
 Any notice or communication mailed to a Securityholder will be mailed to the Securityholder at the
Securityholder’s address as it appears on the registration books of the Registrar and will be sufficiently given to the Securityholder if so mailed within the time prescribed. 

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

  
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 If by reason of the suspension of regular mail service, or by reason of any other cause, it is
impossible to mail any notice as required by this Indenture or any Supplemental Indenture, then any method of notification which is approved by the Trustee will constitute a sufficient mailing of the notice. 

The Company may set a record date for purposes of determining the identity of Securityholders entitled to vote or consent to any action by
vote or consent authorized or permitted by Sections 6.04 and 6.05. The record date will be the later of 30 days prior to the first solicitation of consents or the date of the most recent list of Holders furnished to the Trustee pursuant to
Section 2.07 prior to the solicitation. 
 Section 12.04.    Communication by Holders with Other
Holders. Securityholders may communicate pursuant to TIA Section 312(b) with other Securityholders with respect to their rights under this Indenture or the Securities. Each of the Company, the Trustee, the Registrar and anyone else will
have the protection of TIA Section 312(c). 
 Section 12.05.    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 or any Supplemental Indenture, the Company will furnish to the Trustee: 

(a)    an Officers’ Certificate stating that, in the opinion of the signer, all conditions precedent, if any,
provided for in this Indenture or any Supplemental Indenture relating to the proposed action have been complied with; 

(b)    an Opinion of Counsel stating that, in the opinion of such counsel, all those conditions precedent have been
complied with; and 
 (c)    such other opinions and certificates as may be required by applicable provisions of this
Indenture or the Supplemental Indenture. 
 Each certificate or opinion with respect to compliance with a condition or covenant provided for
in this Indenture or a Supplemental Indenture will include (i) a statement that the person making the certificate or opinion has read the covenant or condition; (ii) a brief statement as to the nature and scope of the examination or
investigation upon which the statements or opinions contained in the certificate or opinion are based; (iii) a statement that, in the opinion of the person giving the certificate or opinion, that person has made such examination or
investigation as is necessary to enable that person to express an informed opinion as to whether or not the covenant or condition has been complied with; and (iv) a statement as to whether or not, in the opinion of that person, the condition or
covenant has been complied with. Nothing in this Section 12.05 will be construed as requiring that the Company furnish to the Trustee any evidence of compliance with the conditions and covenants provided for in this Indenture or any
Supplemental Indenture other than the evidence specified in this Section 12.05. 

  
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 Section 12.06.    When Treasury Securities Disregarded. In
determining whether the Holders of the required principal amount of Securities have concurred in any direction, waiver or consent, Securities owned by the Company, or anyone under direct or indirect control or under direct or indirect common control
with the Company will be disregarded and deemed not to be outstanding, except that for the purposes of determining whether the Trustee will be protected in relying on any such direction, waiver or consent, only Securities which a Trust Officer of
the Trustee actually knows are so owned will be so disregarded. Securities so owned which have been pledged in good faith will not be disregarded if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right to act with
respect to the Securities and that the pledgee is not the Company or a person directly or indirectly controlling or controlled by, or under common control with, the Company. Nothing in this Section 12.06 will be construed as requiring that the
Company furnish to the Trustee any evidence of compliance with the conditions and covenants provided for in the Indenture other than the evidence specified in this Section 12.06. 

Section 12.07.    Rules by Trustee, Paying Agent, Registrar. The Trustee may make reasonable rules for action
by or at a meeting of Securityholders. The Paying Agent or Registrar may make reasonable rules for its functions. 

Section 12.08.    Legal Holidays. A “Legal Holiday” is a Saturday, a Sunday, or a day on
which banking institutions are not required to be open in the State of New York. 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 on
the sum being paid will accrue for the intervening period. 
 Section 12.09.    Governing Law and Submission to
Jurisdiction; Waiver of Jury Trial. The laws of the State of New York will govern this Indenture, each Supplemental Indenture and the Securities. The Company submits to the jurisdiction of the courts of the State of New York sitting in the
Borough of Manhattan, City of New York, and of the United States District Court for the Southern District of New York, in any action or proceeding to enforce any of its obligations under this Indenture or any Supplemental Indenture or with regard to
the Securities, and agrees not to seek a transfer of any such action or proceeding on the basis of inconvenience of the forum or otherwise (but the Company will not be prevented from removing any such action or proceeding from a state court to the
United States District Court for the Southern District of New York). The Company agrees that process in any such action or proceeding may be served upon it by registered mail or in any other manner permitted by the rules of the court in which the
action or proceeding is brought. 
 EACH OF THE COMPANY, THE HOLDERS AND THE TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT
PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTION CONTEMPLATED HEREBY. 

Section 12.10.    Actions by the Company. Any action or proceeding brought by the Company to enforce any
right, assert any claim or obtain any relief in connection with this Indenture, any Supplemental Indenture or the Securities will be brought by the Company exclusively in the courts of the State of New York sitting in the Borough of Manhattan, City
of New York or in the United States District Court for the Southern District of New York. 

  
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 Section 12.11.    No Adverse Interpretation of Other Agreements.
Neither this Indenture nor any Supplemental Indenture may be used to interpret another indenture, loan or debt agreement of the Company or any Subsidiary. No such indenture, loan or debt agreement may be used to interpret this Indenture or any
Supplemental Indenture. 
 Section 12.12.    Successors. All agreements of the Company in this Indenture,
any Supplemental Indentures and the Securities will bind its successors. All agreements of the Trustee in this Indenture and any Supplemental Indentures will bind its successors. 

Section 12.13.    Duplicate Originals. The parties may sign any number of copies of this Indenture or any
Supplemental Indenture. Each signed copy will be an original, but all of them together will represent the same agreement. The exchange of copies of this Indenture or any Supplemental Indenture and of signature pages by facsimile or PDF transmission
shall constitute effective execution and delivery of this Indenture or any Supplemental Indenture as to the parties hereto and may be used in lieu of the original Indenture or any Supplemental 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 12.14.    Table of Contents, Headings, etc. The table of contents, cross-reference sheet and headings
of the Articles and Sections of this Indenture have been inserted for convenience of reference only. They are not to be considered a part of this Indenture, and will in no way modify or restrict any of the terms or provisions of this Indenture. 

Section 12.15.    U.S.A. PATRIOT Act. The parties hereto acknowledge that in accordance with Section 326
of the U.S.A. PATRIOT Act, the Trustee, like all financial institutions and in order to help fight the funding of terrorism and money laundering, is required to obtain, verify, and record information that identifies each person or legal entity that
establishes a relationship or opens an account with the Trustee. The parties to this Indenture agree that they will provide the Trustee with such information as it may request in order for the Trustee to satisfy the requirements of the U.S.A.
PATRIOT Act. 
 Section 12.16.    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
efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances. 

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

			
	 HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE,
INC.

 
			
		
	By:	 	  

	Name:	 	[●]
	Title:	 	[●]

 
			
	
	 U.S. BANK NATIONAL ASSOCIATION, as
Trustee

 
			
		
	By:	 	  

	Name:	 	[●]
	Title:	 	[●]

 EXHIBIT A 

FORM OF TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Securities of the series described in the within-mentioned Indenture and Supplemental Indenture. 

 

			
	U.S. Bank National Association, as Trustee
		
	By:	 	  

		 	Authorized Signatory
		
	Dated:	 	

  
 A-1

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