Document:

isco-ex1017_294.htm

Exhibit 10.17

U.S. Small Business Administration

NOTE

		
	
SBA Loan # 

 
	
2487468609

	
SBA Loan Name 

 
	
International Stem Cell Corporation

	
Date 

 
	
March 18, 2021

	
Loan Amount 

 
	
$474,147.00

	
Interest Rate 

 
	
1.00%

	
Borrower 

 
	
International Stem Cell Corporation

	
Operating Company 

 
	
N/A

	
Lender

 
	
Endeavor Bank

 

1. PROMISE TO PAY:

 

In return for the Loan, Borrower promises to pay to the order of Lender the amount of Four hundred and seventy four thousand one hundred and forty seven 00/100 Dollars, interest on the unpaid principal balance, and all other amounts required by this Note.

 

2. DEFINITIONS:

 

"Collateral" means any property taken as security for payment of this Note or any guarantee of this Note.
"Guarantor" means each person or entity that signs a guarantee of payment of this Note.
"Loan" means the loan evidenced by this Note.
"Loan Documents" means the documents related to this loan signed by Borrower, any Guarantor, or anyone who pledges collateral.
"SBA" means the Small Business Administration, an Agency of the United States of America.

 

3. PAYMENT TERMS:

 

Borrower must make all payments at the place Lender designates. The payment terms for this Note are:

The interest rate is 1% per year, beginning on the date of this Note. To the extent the loan amount is not forgiven under the Paycheck Protection Program (Sections 1102 and 1106 of the Coronavirus Aid, Relief, and Economic Security Act (CARES Act)), Borrower must make equal monthly payments of principal and interest, beginning seventeen (17) months from the date of this Note, until the maturity date, which is five (5) years from the date of the Note. This Note may be prepaid in part or in full, at any time, without penalty.

 

 

Exhibit 10.17

4. DEFAULT:

 

Borrower is in default under this Note if Borrower does not make a payment when due under this Note, or if Borrower or Operating Company:

A. Fails to do anything required by this Note and other Loan Documents;

B. Defaults on any other loan with Lender;

C. Does not preserve, or account to Lender’s satisfaction for, any of the Collateral or its proceeds;

D. Does not disclose, or anyone acting on their behalf does not disclose, any material fact to Lender or SBA;

E. Makes, or anyone acting on their behalf makes, a materially false or misleading representation to Lender or SBA;

F. Defaults on any loan or agreement with another creditor, if Lender believes the default may materially affect Borrower’s ability to pay this Note;

G. Fails to pay any taxes when due;

H. Becomes the subject of a proceeding under any bankruptcy or insolvency law;

I. Has a receiver or liquidator appointed for any part of their business or property;

J. Makes an assignment for the benefit of creditors;

K. Has any adverse change in financial condition or business operation that Lender believes may materially affect Borrower’s ability to pay this Note;

L. Reorganizes, merges, consolidates, or otherwise changes ownership or business structure without Lender’s prior written consent; or

M. Becomes the subject of a civil or criminal action that Lender believes may materially affect Borrower’s ability to pay this Note.

 

5. LENDER’S RIGHTS IF THERE IS A DEFAULT:

 

Without notice or demand and without giving up any of its rights, Lender may:

A. Require immediate payment of all amounts owing under this Note;

B. Collect all amounts owing from any Borrower or Guarantor;

C. File suit and obtain judgment;

D. Take possession of any Collateral; or

E. Sell, lease, or otherwise dispose of, any Collateral at public or private sale, with or without advertisement.

 

6. LENDER’S GENERAL POWERS:

 

Without notice and without Borrower’s consent, Lender may:

A. Bid on or buy the Collateral at its sale or the sale of another lienholder, at any price it chooses;

B. Incur expenses to collect amounts due under this Note, enforce the terms of this Note or any other Loan Document, and preserve or dispose of the Collateral. Among other things, the expenses may include payments for property taxes, prior liens, insurance, appraisals, environmental remediation costs, and reasonable attorney’s fees and costs. If Lender incurs such expenses, it may demand immediate repayment from Borrower or add the expenses to the principal balance;

C. Release anyone obligated to pay this Note;

D. Compromise, release, renew, extend or substitute any of the Collateral; and

E. Take any action necessary to protect the Collateral or collect amounts owing on this Note.

 

7. WHEN FEDERAL LAW APPLIES:

 

When SBA is the holder, this Note will be interpreted and enforced under federal law, including SBA regulations. Lender or SBA may use state or local procedures for filing papers, recording documents, giving notice, 

 

Exhibit 10.17

foreclosing liens, and other purposes. By using such procedures, SBA does not waive any federal immunity from state or local control, penalty, tax, or liability. As to this Note, Borrower may not claim or assert against SBA any local or state law to deny any obligation, defeat any claim of SBA, or preempt federal law.

 

8. SUCCESSORS AND ASSIGNS:

 

Under this Note, Borrower and Operating Company include the successors of each, and Lender includes its successors and assigns.

 

9. GENERAL PROVISIONS:

 

A. All individuals and entities signing this Note are jointly and severally liable.

B. Borrower waives all suretyship defenses.

C. Borrower must sign all documents necessary at any time to comply with the Loan Documents and to enable Lender to acquire, perfect, or maintain Lender’s liens on Collateral.

D. Lender may exercise any of its rights separately or together, as many times and in any order it chooses. Lender may delay or forgo enforcing any of its rights without giving up any of them.

E. Borrower may not use an oral statement of Lender or SBA to contradict or alter the written terms of this Note.

F. If any part of this Note is unenforceable, all other parts remain in effect.

G. To the extent allowed by law, Borrower waives all demands and notices in connection with this Note, including presentment, demand, protest, and notice of dishonor. Borrower also waives any defenses based upon any claim that Lender did not obtain any guarantee; did not obtain, perfect, or maintain a lien upon Collateral; impaired Collateral; or did not obtain the fair market value of Collateral at a sale.

 

10. STATE-SPECIFIC PROVISIONS:

 

Not Applicable

 

11. BORROWER’S NAME(S) AND SIGNATURE(S):

 

By signing below, each individual or entity becomes obligated under this Note as Borrower.

 

International Stem Cell Corporation

 

By: Andrey Semechkin, CEOExhibit 4.2

 

THIRD SUPPLEMENTAL INDENTURE

 

between

 

HORIZON TECHNOLOGY FINANCE CORPORATION

 

and

 

U.S. BANK NATIONAL ASSOCIATION,

 

as Trustee

 

Dated
as of March 30, 2021

 

 

 

THIRD SUPPLEMENTAL INDENTURE

 

THIS
THIRD SUPPLEMENTAL INDENTURE (this “Third Supplemental Indenture”), dated as of March 30, 2021, is between Horizon
Technology Finance Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, as trustee
(the “Trustee”). All capitalized terms used herein shall have the meaning set forth in the Base Indenture (as defined
below).

 

RECITALS OF THE COMPANY

 

The Company and the Trustee executed and delivered
an Indenture, dated as of March 23, 2012 (the “Base Indenture” and, as supplemented by this Third Supplemental
Indenture, the “Indenture”), to provide for the issuance by the Company from time to time of the Company’s unsecured
debentures, notes or other evidences of indebtedness (the “Securities”), to be issued in one or more series as provided
in the Base Indenture.

 

The
Company previously entered into the First Supplemental Indenture, dated as of March 23, 2012 (the “First Supplemental Indenture”),
and the Second Supplemental Indenture, dated as of September 29, 2017 (the “Second Supplemental Indenture”),
which each amended and supplemented the Base Indenture. Neither the First Supplemental Indenture nor the Second Supplemental Indenture
is applicable to the 2026 Notes (as defined below).

 

The
Company desires to initially issue and sell up to $57,500,000 aggregate principal amount (including up to $7,500,000 aggregate
principal amount pursuant to an underwriters’ overallotment option) of the Company’s 4.875% Notes due 2026 (the “2026
Notes”).

 

Sections 9.01(iv) and 9.01(vi) of the Base
Indenture provide that, without the consent of Holders of the Securities of any series issued under the Indenture, the Company, when authorized
by or pursuant to a Board Resolution, and the Trustee, at any time and from time to time, may enter into one or more indentures supplemental
to the Base Indenture to (i) change or eliminate any of the provisions of the Indenture when there is no Security Outstanding of
any series created prior to the execution of a supplemental indenture that is entitled to the benefit of such provision and (ii) establish
the form or terms of Securities of any series as permitted by Section 2.01 and Section 3.01 of the Base Indenture.

 

The
Company desires to establish the form and terms of the 2026 Notes and to modify, alter, supplement and change certain provisions
of the Base Indenture for the benefit of the Holders of the 2026 Notes (except as may be provided in a future supplemental indenture to
the Indenture (“Future Supplemental Indenture”)).

 

The
Company has duly authorized the execution and delivery of this Third Supplemental Indenture to provide for the issuance of the 2026
Notes and all acts and things necessary to make this Third Supplemental Indenture a valid, binding, and legal obligation of the Company
and to constitute a valid agreement of the Company, in accordance with its terms, have been done and performed.

 

    	 	 	 

     

    

 

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

 

For
and in consideration of the premises and the purchase of the 2026 Notes by the Holders thereof, it is mutually agreed, for the
equal and proportionate benefit of all Holders of the 2026 Notes, as follows:

 

ARTICLE
I

TERMS OF THE 2026 NOTES

 

Section 1.01.
Terms of the 2026 Notes. The following terms relating to the 2026 Notes are hereby established:

 

(a)
The 2026 Notes shall constitute a series of Securities having the title “4.875% Notes due 2026” and shall be designated
as “Senior Securities” under the Indenture. The 2026 Notes shall bear a CUSIP number of 44045A 409 and an ISIN number of US44045A4094.

 

(b)
The aggregate principal amount of the 2026 Notes that may be initially authenticated and delivered under the Indenture (except for 2026
Notes authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of, other 2026 Notes pursuant to Sections 3.04,
3.05, 3.06, 9.06 or 11.07 of the Base Indenture) shall be $57,500,000 (including up to $7,500,000 aggregate principal amount pursuant
to an underwriters’ overallotment option). Under a Board Resolution, Officers’ Certificate pursuant to Board Resolutions or
a Future Supplemental Indenture, the Company may from time to time, without the consent of the Holders of 2026 Notes, issue additional
2026 Notes (in any such case, “Additional Notes”) having the same ranking and the same interest rate, maturity and
other terms as the 2026 Notes initially issued. Any Additional Notes and the existing 2026 Notes shall constitute a single series under
the Indenture, and all references to the relevant 2026 Notes herein shall include the Additional Notes unless the context otherwise requires.

 

(c)
The entire outstanding principal of the 2026 Notes shall be payable on March 30, 2026 unless earlier redeemed or repurchased in
accordance with the provisions of the Indenture.

 

(d)
The rate at which the 2026 Notes shall bear interest shall be 4.875% per annum. The date from which interest shall accrue on the 2026
Notes shall be March 30, 2021, or the most recent Interest Payment Date to which interest has been paid or provided for; the Interest
Payment Dates for the 2026 Notes shall be March 30, June 30, September 30 and December 30 of each year, commencing June
30, 2021 (provided that, if an Interest Payment Date falls on a day that is not a Business Day, then the applicable interest payment
shall be made on the next succeeding Business Day, and no additional interest shall accrue as a result of such delayed payment); the initial
interest period shall be the period from and including March 30, 2021 (or the most recent Interest Payment Date to which interest has
been paid or provided for), to, but excluding, the initial Interest Payment Date, and the subsequent interest periods shall be the periods
from and including an Interest Payment Date to, but excluding, the next Interest Payment Date or the Stated Maturity, as the case may
be; the interest so payable, and punctually paid or duly provided for, on any Interest Payment Date, shall be paid to the Person in whose
name the 2026 Note (or one or more predecessor 2026 Notes) is registered at the close of business on the Regular Record Date for such
interest, which shall be March 15, June 15, September 15 or December 15 (whether or not a Business Day), as the case may be,
next preceding such Interest Payment Date. Payment of principal of (and premium, if any) and any such interest on the 2026 Notes shall
be made at the Corporate Trust Office of the Trustee in Hartford, Connecticut in such coin or currency of the United States of America
as at the time of payment is legal tender for payment of public and private debts; provided, however, that, at the option
of the Company payment of interest may be made by check mailed to the address of the Person entitled thereto as such address shall appear
in the Security Register. Interest on the 2026 Notes shall be computed on the basis of a 360-day year of twelve 30-day months.

 

(e) The 2026 Notes shall be initially issuable
in global form (each such 2026 Note, a “Global Note”). The Global Notes and the Trustee’s certificate of authentication
thereon shall be substantially in the form of Exhibit A to this Third Supplemental Indenture. Each Global Note shall represent
the outstanding 2026 Notes as shall be specified therein and each shall provide that it shall represent the aggregate amount of outstanding
2026 Notes from time to time endorsed thereon and that the aggregate amount of outstanding 2026 Notes represented thereby may from time
to time be reduced or increased, as appropriate, to reflect exchanges and redemptions. Any endorsement of a Global Note to reflect the
amount of any increase or decrease in the amount of outstanding 2026 Notes represented thereby shall be made by the Trustee or the Security
Registrar, in accordance with Sections 2.03 and 3.05 of the Base Indenture.

 

    	 	 	 

     

    

 

(f) The depositary for such Global Notes (the “Depositary”)
shall be The Depository Trust Company, New York, New York. The Security Registrar with respect to the Global Notes shall be the Trustee.

 

(g) The 2026 Notes shall be defeasible pursuant
to Section 14.02 or Section 14.03 of the Base Indenture. Covenant defeasance contained in Section 14.03 of the Base Indenture
shall apply to the covenants contained in Sections 10.06, 10.08, 10.09 and 10.10 of the Indenture.

 

(h) The 2026 Notes shall be redeemable pursuant
to Section 11.01 of the Base Indenture and as follows:

 

(i)
The 2026 Notes shall be redeemable in whole or in part at any time or from time to time, at the option of the Company, on or after March
30, 2023, at a redemption price of $25 per 2026 Note plus accrued and unpaid interest payments otherwise payable for the then-current
quarterly interest period accrued to, but excluding, the date fixed for redemption.

 

(ii) Notice of redemption shall be given
in writing and mailed, first-class postage prepaid or by overnight courier guaranteeing next-day delivery, to each Holder of the 2026
Notes to be redeemed, not less than thirty (30) nor more than sixty (60) days prior to the Redemption Date, at the Holder’s
address appearing in the Security Register. All notices of redemption shall contain the information set forth in Section 11.04 of
the Base Indenture.

 

(iii) Any exercise of the Company’s
option to redeem the 2026 Notes shall be done in compliance with the Investment Company Act.

 

(iv) If the Company elects to redeem
only a portion of the 2026 Notes, the Trustee shall determine the method for selecting the particular 2026 Notes to be redeemed, in accordance
with Section 11.03 of the Base Indenture and the Investment Company Act.

 

(v) Unless the Company defaults in payment
of the Redemption Price, on and after the Redemption Date, interest shall cease to accrue on the 2026 Notes called for redemption hereunder.

 

(i) The 2026 Notes shall not be subject to any
sinking fund pursuant to Section 12.01 of the Base Indenture.

 

(j) The 2026 Notes shall be issuable in denominations
of $25 and integral multiples of $25 in excess thereof.

 

(k) Holders of the 2026 Notes shall not have the
option to have the 2026 Notes repaid prior to the Stated Maturity.

 

ARTICLE II

DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

 

Section 2.01.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Article One of the Base Indenture shall be
amended by adding or amending and restating, as applicable, the following defined terms to Section 1.01 thereof in appropriate alphabetical
sequence, as follows:

 

“‘Affiliate’ of any specified
Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such
specified Person. For the purposes of this definition, “control” when used with respect to any specified Person means the
power to direct the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities,
by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing.”

 

    	 	 	 

     

    

 

“‘Business
Day’, when used with respect to any Place of Payment or any other particular location referred to in this Indenture or in the
Securities, means, each Monday, Tuesday, Wednesday, Thursday and Friday that is not a day on which banking institutions in New York City
and Chicago are authorized or obligated by law or executive order to close.”

 

“‘Code’
means the Internal Revenue Code of 1986, as amended.”

 

“Corporate
Trust Office” means the office of the Trustee at which, at any particular time, its corporate trust business shall be principally
administered, which office at the date hereof is located at 185 Asylum Street, 27th Floor Hartford, CT 06103;
Attn: Horizon Technology Finance Corporation; provided that for purposes of presentment or surrender of securities for
transfer or payment or exchange, such office is located at 60 Livingston Avenue, 1st Floor, St. Paul, MN 55107, Attn: Bondholder Services,
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 Company).

  

“‘Exchange
Act’ means the Securities Exchange Act of 1934, as amended, and any statute successor thereto.” 

 

“‘FATCA’ means sections
1471 through 1474 of the Code (or any amended or successor version) and any current or future regulations or official interpretations
thereof.”

 

“‘FATCA Withholding
Tax’ means any withholding or deduction pursuant to an agreement described in Section 1471(b) of the Code or otherwise imposed
pursuant to FATCA.”

 

“‘GAAP’ means generally
accepted accounting principles in the United States set forth in the opinions and pronouncements of the Accounting Principles Board of
the American Institute of Certified Public Accountants, the opinions and pronouncements of the Public Company Accounting Oversight Board
and the statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as
have been approved by a significant segment of the accounting profession in the United States, which are in effect from time to time.”

 

“‘Investment Company Act’
means the Investment Company Act of 1940, as amended, and the rules, regulations and interpretations promulgated thereunder, to the extent
applicable, and any statute successor thereto.”

 

“‘Noteholder FATCA Information’
means, with respect to any Holder of a 2026 Note or Holder of an interest in a 2026 Note, information sufficient to eliminate the imposition
of, or determine the amount of, U.S. withholding tax under FATCA.”

 

“‘Noteholder Tax Identification
Information’ means properly completed and signed tax certifications (generally, in the case of U.S. federal income tax, IRS
Form W-9 (or applicable successor form) in the case of a person that is a “United States Person” within the meaning of Section
7701(a)(30) of the Code or the appropriate IRS Form W-8 (or applicable successor form) in the case of a person that is not a "United
States Person" within the meaning of Section 7701(a)(30) of the Code).”

 

“‘Significant Subsidiary’
means any direct or indirect Subsidiary of the Company that would be a “significant subsidiary” as defined in Article 1,
Rule 1-02 of Regulation S-X under the Exchange Act.”

 

    	 	 	 

     

    

 

ARTICLE III

THE SECURITIES

 

Section 3.01.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, the first paragraph of Section 3.03 of the
Base Indenture shall be amended and restated in with respect to the 2026 Notes as follows:

 

“The Securities shall be executed on behalf
of the Company by the Chairman of the Board, the Chief Executive Officer, the Chief Financial Officer or its President, and attested by
its Secretary. The signature of any of these officers on the Securities may be manual or facsimile, .pdf attachment or other electronically
transmitted signature (with an original manual signature to be sent to the Trustee via overnight mail immediately thereafter) of the present
or any future such authorized officer and may be imprinted or otherwise reproduced on the Securities.”

 

Section 3.02.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, the first sentence of the second paragraph of Section 3.03
of the Base Indenture shall be amended with respect to the 2026 Notes by adding, after the word “facsimile” and before the
word “signatures”, the following:

 

“,.pdf attachment or other electronically
transmitted”

 

Section 3.03.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Article Three of the Base Indenture shall be amended
with respect to the 2026 Notes by adding the following Section 3.15:

 

“Section 3.15. FATCA Withholding.
Each Holder of a 2026 Note or Holder of an interest in a 2026 Note shall provide to the Trustee, any Paying Agent or the Company, upon
its request, the Noteholder Tax Identification Information and, to the extent FATCA Withholding Tax is applicable, the Noteholder FATCA
Information. The Trustee has the right to withhold any amounts of interest (properly withholdable under law and without any corresponding
gross-up) payable to a Holder of a 2026 Note or a Holder of an interest in a 2026 Note that fails to comply with the requirements of the
preceding sentence.”

 

 

ARTICLE IV

SATISFACTIOIN AND DISCHARGE

 

Section 4.01.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Section 4.01 of the Base Indenture shall be amended
by replacing clause (b) thereof with the following:

 

“(b)
the Company has irrevocably paid or caused to be irrevocably paid all other sums payable hereunder by the Company, including sums payable
to the Trustee; and.”

 

ARTICLE V

REMEDIES

 

Section 5.01.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Section 5.01 of the Base Indenture shall be
amended by replacing clause (ii) thereof with the following:

 

“(ii) default in the payment of the principal
of (or premium, if any) any Note when it becomes due and payable at its Maturity; or”

 

Section 5.02.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Section 5.01 of the Base Indenture shall be
amended by replacing clauses (v) and (vi) thereof with the following:

 

    	 	 	 

     

    

 

“(v) the Company or any of its Significant
Subsidiaries or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary, pursuant to
or within the meaning of the Bankruptcy Law:

 

(1) commences a voluntary case or proceeding under any Bankruptcy
Law,  

 

(2) consents to the commencement of any bankruptcy or insolvency
case or proceeding against it, or files a petition or answer or consent seeking reorganization or relief against it,

 

(3) consents to the entry of a decree or order for relief against
it in an involuntary case or proceeding,

 

(4) consents to the filing of such petition or to the appointment
of or taking possession by a Custodian of it or for all or substantially all of its property, or

 

(5) makes an assignment for the benefit of creditors, or admits
in writing of its inability to pay its debts generally as they become due or takes any corporate action in furtherance of any such action;
or

 

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

 

(1) is for relief against the Company or any of its Significant
Subsidiaries or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary in an involuntary
case,

 

(2) adjudges the Company or any of its Significant Subsidiaries
or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary bankrupt or insolvent, or
approves as properly filed a petition seeking reorganization, arrangement, adjustment or composition of or in respect of the Company,
any of its Significant Subsidiaries or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary,

 

(3) appoints a Custodian of the Company or any of its Significant
Subsidiaries or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary or for all or
substantially all of the property of the Company or any of its Significant Subsidiaries or any group of Subsidiaries of the Company that,
taken together, would constitute a Significant Subsidiary, or

 

(4) orders the winding up or liquidation of the Company or
any of its Significant Subsidiaries or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary,

 

and the continuance of
any such decree or order for relief or any such other decree or order remains unstayed and in effect for a period of 60 calendar days;
or”

 

Section 5.03.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Section 5.01 of the Base Indenture shall be
amended by adding the following clauses (ix) and (x):

 

“(ix) acceleration of the Company’s
or any of its Subsidiaries’ indebtedness for money borrowed in aggregate principal amount of $10 million or more so that it becomes
due and payable, if such acceleration is not rescinded within 30 days after notice to the Company by the Trustee or to the Company
by holders of at least 25% of the principal amount of the 2026 Notes then outstanding; or

 

(x) failure by the Company or any of its Subsidiaries,
within 30 days, to pay, bond or otherwise discharge any final, non-appealable judgments or orders for the payment of money the total
uninsured amount of which for the Company or any of its Subsidiaries exceeds $10 million, which are not stayed on appeal.”

 

    	 	 	 

     

    

 

Section 5.04.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Section 5.02 of the Base Indenture shall be amended
by replacing the first paragraph thereof with the following:

 

“If an Event of Default (other than an Event
of Default under Section 5.01(v) or Section 5.01(vi), unless such default under Section 5.01(v) or Section 5.01(vi) relates solely to
a Significant Subsidiary or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary)
with respect to the 2026 Notes at the time Outstanding occurs and is continuing, then and in every such case the Trustee or the Holders
of not less than 25% in principal amount of the Outstanding 2026 Notes may (and the Trustee shall at the request of such Holders) declare
the principal of all the 2026 Notes to be due and payable immediately, by a notice in writing to the Company (and to the Trustee if given
by the Holders), and upon any such declaration such principal or specified portion thereof shall become immediately due and payable. If
an Event of Default under Section 5.01(v) or Section 5.01(vi) occurs with respect to the Company and not solely with respect to a Significant
Subsidiary or any group of Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary, the entire principal
amount of all the 2026 Notes shall automatically become due and immediately payable.”

 

ARTICLE VI

COVENANTS

 

Section 6.01.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Article Ten of the Base Indenture shall be
amended by adding the following new Sections 10.08, 10.09 and 10.10 thereto, each as set forth below:

 

“Section 10.08 Section 18(a)(1)(A) of
the Investment Company Act.

 

The Company hereby agrees that for the
period of time during which 2026 Notes are Outstanding, the Company will not violate, whether or not it is subject to, Section 18(a)(1)(A)
as modified by Section 61(a)(1) of the Investment Company Act or any successor provisions thereto of the Investment Company Act.”

 

“Section 10.09 Section 18(a)(1)(B) of
the Investment Company Act.

 

The
Company hereby agrees that for the period of time during which 2026 Notes are Outstanding, the Company will not violate Section 18(a)(1)(B)
as modified by Section 61(a)(2) and the definitional provisions of the Investment Company Act or any successor provisions thereto
of the Investment Company Act, whether or not the Company is subject to such provisions of the Investment Company Act, and after giving
effect to any exemptive relief granted to the Company by the Commission, except that the Company may declare a cash dividend or distribution,
notwithstanding the prohibition contained in Section 18(a)(1)(B) as modified by Section 61(a)(2) and the definitional provisions of the
Investment Company Act, but only up to such amount as is necessary in order for the Company to maintain its status as a regulated investment
company under Subchapter M of the Internal Revenue Code of 1986; provided, however, that the prohibition in this Section 10.09 shall not
apply until such time as the Company’s asset coverage has been below the minimum asset coverage required pursuant to Section 18(a)(1)(B)
as modified by Section 61(a)(2) and the definitional provisions of the Investment Company Act or any successor provisions thereto of the
Investment Company Act (after giving effect to any exemptive relief granted to the Company by the Commission) for more than six (6) consecutive
months.”

 

“Section 10.10 Commission Reports and Reports
to Holders.

 

If, at any time, the Company is not subject
to the reporting requirements of Sections 13 or 15(d) of the Exchange Act to file any periodic reports with the Securities and Exchange
Commission, the Company agrees to furnish to the Holders of 2026 Notes and the Trustee for the period of time during which the 2026 Notes
are Outstanding: (i) within 90 days after the end of the each fiscal year of the Company, audited annual consolidated financial
statements of the Company and (ii) within 45 days after the end of each fiscal quarter of the Company (other than the Company’s
fourth fiscal quarter), unaudited interim consolidated financial statements of the Company. All such financial statements shall be prepared,
in all material respects, in accordance with GAAP.”

 

    	 	 	 

     

    

 

ARTICLE VII

DEFEASANCE

 

Section 7.01.
Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no other series of
Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Section 14.04 of the Base Indenture shall be amended
by adding the following clause (ix):

 

“(ix)
In the case of an election under Section 14.02, in addition to the amounts deposited for the benefit of the Holders pursuant
to clause (i) of this Section 14.04, the Company shall have irrevocably deposited or caused to be
irrevocably deposited with the Trustee all amounts then due to the Trustee under the Indenture.”

 

ARTICLE VIII

MEETINGS OF HOLDERS OF SECURITIES

 

Section
8.01 Except as may be provided in a Future Supplemental Indenture, for the benefit of the Holders of the 2026 Notes but no
other series of Securities under the Base Indenture, whether now or hereafter issued and Outstanding, Section 15.05 of the Base Indenture
shall be amended by replacing clause (c) thereof with the following:

 

“(c) At any meeting of Holders,
each Holder of a 2026 Note or proxy shall be entitled to one vote for each $25.00 principal amount of the Outstanding Securities of such
series held or represented by such Holder; provided, however, that no vote shall be cast or counted at any meeting
in respect of any Security challenged as not Outstanding and ruled by the chairman of the meeting to be not Outstanding. The chairman
of the meeting shall have no right to vote, except as a Holder of a Security of such series or proxy.”

 

ARTICLE IX

MISCELLANEOUS

 

Section 9.01.
This Third Supplemental Indenture and the 2026 Notes shall be governed by and construed in accordance with the laws of the State of New
York, without regard to principles of conflicts of laws that would cause the application of laws of another jurisdiction. This Third Supplemental
Indenture is subject to the provisions of the Trust Indenture Act, that are required to be part of the Indenture and shall, to the extent
applicable, be governed by such provisions.

  

Section 9.02.
Except as may be provided in a Future Supplemental Indenture, Article Six of the Base Indenture shall be amended by adding the following
Section 6.13:

 

“Section 6.13 Trustee’s
Cooperation.

 

So
long as the outstanding 2026 Notes are registered in the name of Cede & Co. or its registered assigns, the Trustee shall cooperate
with Cede & Co., as sole registered Owner, and its registered assigns in effecting payment of the principal of, Redemption Price and
interest on the 2026 Notes by arranging for payment in such manner that funds for such payments are properly identified and are made immediately
available on the date they are due. The Company acknowledges that in order for the Trustee to make funds for such payments immediately
available to the Depository on the date they are due, the Company shall ensure the funds for such payments are remitted and made immediately
available to the Trustee, no later than 10:00 a.m. Eastern Time on the date they are due to Cede & Co. in order for the Trustee
to conform to the payment guidelines of the Depository. Funds for such payments received by the Trustee after 10:00 a.m. Eastern Time
on the date they are due to Cede & Co. may not be assured of timely payment and detail payment notification to the Depository for
subsequent allocation to the noteholders.”

 

    	 	 	 

     

    

 

Section 9.03.
In case any provision in this Third Supplemental Indenture or in the 2026 Notes shall be invalid, illegal or unenforceable, the validity,
legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

 

Section 9.04.
This Third Supplemental Indenture may be executed in any number of counterparts, each of which shall be deemed to be an original, but
all such counterparts shall together constitute but one and the same Third Supplemental Indenture. The exchange of copies of this Third
Supplemental Indenture and of signature pages by facsimile, .pdf transmission, email or other electronic means shall constitute effective
execution and delivery of this Third Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile,
..pdf transmission, email or other electronic means shall be deemed to be their original signatures for all purposes. All notices, approvals,
consents, requests and any communications hereunder must be in writing (provided that any communication sent to the Trustee hereunder
must be in the form of a document that is signed manually or by way of a digital signature provided by <ADD Provider such as DocuSign
 > (or such other digital signature provider as specified in writing to the Trustee by the authorized representative), in English.  The
Company agrees to assume all risks arising out of the use of using digital signatures and electronic methods to submit communications
to the Trustee, including without limitation the risk of the Trustee acting on unauthorized instructions, and the risk of interception
and misuse by third parties.  The Trustee shall have no liability for relying on such digital signatures or electronic methods.

 

Section 9.05.
The Base Indenture, as supplemented and amended by this Third Supplemental Indenture, is in all respects ratified and confirmed, and the
Base Indenture and this Third Supplemental Indenture shall be read, taken and construed as one and the same instrument with respect to
the 2026 Notes. All provisions included in this Third Supplemental Indenture supersede any conflicting provisions included in the Base
Indenture with respect to the 2026 Notes, unless not permitted by law. The Trustee accepts the trusts created by the Base Indenture, as
supplemented by this Third Supplemental Indenture, and agrees to perform the same upon the terms and conditions of the Base Indenture,
as supplemented by this Third Supplemental Indenture.

 

Section 9.06.
The provisions of this Third Supplemental Indenture shall become effective as of the date hereof.

 

Section 9.07.
Notwithstanding anything else to the contrary herein, the terms and provisions of this Third Supplemental Indenture shall apply only to
the 2026 Notes and shall not apply to any other series of Securities under the Base Indenture, and this Third Supplemental Indenture shall
not and does not otherwise affect, modify, alter, supplement or change the terms and provisions of any other series of Securities under
the Base Indenture, whether now or hereafter issued and Outstanding.

 

Section 9.08.
The recitals contained herein and in the 2026 Notes, except the Trustee’s certificate of authentication, shall be taken as the statements
of the Company, and the Trustee assumes no responsibility for their correctness. The Trustee makes no representations as to the validity
or sufficiency of this Third Supplemental Indenture, the 2026 Notes or any Additional Notes, except that the Trustee represents that it
is duly authorized to execute and deliver this Third Supplemental Indenture, authenticate the 2026 Notes and any Additional Notes and
perform its obligations hereunder. The Trustee shall not be accountable for the use or application by the Company of the 2026 Notes or
any Additional Notes or the proceeds thereof.

 

    	 	 	 

     

    

  

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

 

	 	HORIZON TECHNOLOGY FINANCE CORPORATION
	 	 
	 	By: 	 
	 	Name: 	Daniel R. Trolio
	 	Title:   	Senior Vice President, Chief Financial Officer and Treasurer
	 	 
	 	U.S. BANK NATIONAL ASSOCIATION, as Trustee
	 	 
	 	By: 	 
	 	Name: 	 
	 	Title: 	 

 

[Signature page to Third Supplemental Indenture]

 

    	 	 	 

     

    

 

Exhibit A — Form of Global Note

 

This Security is a Global Note within the meaning
of the Indenture hereinafter referred to and is registered in the name of The Depository Trust Company or a nominee thereof. This Security
may not be exchanged in whole or in part for a Security registered, and no transfer of this Security in whole or in part may be registered,
in the name of any Person other than The Depository Trust Company or a nominee thereof, except in the limited circumstances described
in the Indenture.

 

Unless this certificate is presented by an
authorized representative of The Depository Trust Company to the issuer or its agent for registration of transfer, exchange or payment
and such certificate issued in exchange for this certificate is registered in the name of Cede & Co., or such other name as requested
by an authorized representative of The Depository Trust Company, any transfer, pledge or other use hereof for value or otherwise by or
to any person is wrongful, as the registered owner hereof, Cede & Co., has an interest herein.

 

Horizon Technology Finance Corporation

  

	No.  	 	$
	 	 	CUSIP No. 44045A 409
	 	 	ISIN No.  US44045A4094 

 

 4.875% Notes due 2026

 

Horizon
Technology Finance Corporation, a corporation duly organized and existing under the laws of Delaware (herein called the “Company”,
which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede
 & Co., or registered assigns, the principal sum of ____________________(U.S. $_______________) on March 30, 2026, and to pay
interest thereon from March 30, 2021 or from the most recent Interest Payment Date to which interest has been paid or duly provided for,
quarterly on March 30, June 30, September 30 and December 30 in each year, commencing June 30, 2021 (provided,
that if an Interest Payment Date falls on a day that is not a Business Day, then the applicable interest payment shall be made on the
next succeeding Business Day and no additional interest shall accrue as a result of such delayed payment), at the rate of 4.875% per annum,
until the principal hereof is paid or made available for payment. The interest so payable, and punctually paid or duly provided for, on
any Interest Payment Date shall, as provided in such Indenture, be paid to the Person in whose name this Security is registered at the
close of business on the Regular Record Date for such interest, which shall be March 15, June 15, September 15 or December 15
(whether or not a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest not so punctually paid
or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person
in whose name this Security is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest
to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this series not less than 10 days prior to
such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange
on which the Securities of this series may be listed, and upon such notice as may be required by such exchange, all as more fully provided
in said Indenture. This Security may be issued as part of a series.

 

Payment of the principal of (and premium, if any)
and any such interest on this Security shall be made at the Corporate Trust Office of the Trustee in Chicago, Illinois in such coin or
currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided,
however, that at the option of the Company payment of interest may be made by check mailed to the address of the Person entitled
thereto as such address shall appear in the Security Register.

 

Reference is hereby made to the further provisions
of this Security set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth
at this place.

 

Unless the certificate of authentication hereon
has been executed by the Trustee referred to on the reverse hereof by manual signature, this Security shall not be entitled to any benefit
under the Indenture or be valid or obligatory for any purpose.

 

    	 	A-1	 

     

    

 

In
Witness Whereof, the Company has caused this instrument to be duly executed.

 

Dated:

 

	 	HORIZON TECHNOLOGY FINANCE CORPORATION
	 	 	 	 
	 	By:	 	/s/Daniel R. Trolio 
	 	 	 	 
	 	 	 	Name: Daniel R. Trolio
	 	 	 	Title:   Senior Vice President, Chief Financial Officer and Treasurer

 

	Attest	 
	 	 	 
	By:	/s/ John Bombara                                                     	 
	Name: John Bombara	 
	Title: Secretary, Horizon Technology Finance Corporation.	 

 

    	 	A-2	 

     

    

  

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

 

Dated:

 

	 	U.S. BANK NATIONAL ASSOCIATION,

as Trustee
	 	 	 	 
	 	By:	 	/s/ Alicia Pelletier 
	 	 	 	 
	 	 	 	Authorized Signatory

 

    	 	A-3	 

     

    

 

Horizon
Technology Finance Corporation

4.875% Notes due 2026

 

This
Security is one of a duly authorized issue of Senior Securities of the Company (herein called the “Securities”), issued and
to be issued in one or more series under an Indenture, dated as of March 23, 2012 (herein called the “Base Indenture”),
between the Company and U.S. Bank National Association, as Trustee (herein called the “Trustee”, which term includes any successor
trustee under the Base Indenture), and reference is hereby made to the Base Indenture for a statement of the respective rights, limitations
of rights, duties and immunities thereunder of the Company, the Trustee, and the Holders of the Securities and of the terms upon which
the Securities are, and are to be, authenticated and delivered, as supplemented by the Third Supplemental Indenture, dated as of March
30, 2021, by and between the Company and the Trustee (herein called the “Third Supplemental Indenture”, the Third Supplemental
Indenture and the Base Indenture collectively are herein called the “Indenture”). In the event of any conflict between the
Base Indenture and the Third Supplemental Indenture, the Third Supplemental Indenture shall govern and control.

 

This
Security is one of the series designated on the face hereof, initially limited in aggregate principal amount to $57,500,000. Under
a Board Resolution, Officers’ Certificate pursuant to Board Resolutions or an indenture supplement, the Company may from time to
time, without the consent of the Holders of Securities, issue additional Securities of this series (in any such case “Additional
Securities”) having the same ranking and the same interest rate, maturity and other terms as the Securities. Any Additional Securities
and the existing Securities will constitute a single series under the Indenture and all references to the relevant Securities herein shall
include the Additional Securities unless the context otherwise requires. The aggregate amount of outstanding Securities represented hereby
may from time to time be reduced or increased, as appropriate, to reflect exchanges and redemptions.

 

The
Securities of this series are subject to redemption in whole or in part at any time or from time to time, at the option of the Company,
on or after March 30, 2023, at a redemption price of $25 per security plus accrued and unpaid interest payments otherwise payable
for the then-current quarterly interest period accrued to, but excluding, the date fixed for redemption.

 

Notice of redemption shall be given in writing
and mailed, first-class postage prepaid or by overnight courier guaranteeing next-day delivery, to each Holder of the Securities to be
redeemed, not less than thirty (30) nor more than sixty (60) days prior to the Redemption Date, at the Holder’s address
appearing in the Security Register. All notices of redemption shall contain the information set forth in Section 11.04 of the Base
Indenture.

 

Any exercise of the Company’s option to redeem
the Securities shall be done in compliance with the Investment Company Act, and the rules, regulations and interpretations promulgated
thereunder, to the extent applicable.

 

If the Company elects to redeem only a portion
of the Securities, the Trustee shall determine the method for selecting the particular Securities to be redeemed, in accordance with Section
11.03 of the Base Indenture and the Investment Company Act, and the rules and regulations promulgated thereunder, to the extent applicable.
In the event of redemption of this Security in part only, a new Security or Securities of this series and of like tenor for the unredeemed
portion hereof shall be issued in the name of the Holder hereof upon the cancellation hereof.

 

Unless the Company defaults in payment of the Redemption
Price, on and after the Redemption Date, interest shall cease to accrue on the Securities called for redemption.

 

Holders
of Securities do not have the option to have the Securities repaid prior to March 30, 2026.

 

The Indenture contains provisions for defeasance
at any time of the entire indebtedness of this Security or certain restrictive covenants and Events of Default with respect to this Security,
in each case upon compliance with certain conditions set forth in the Indenture.

 

If an Event of Default with respect to Securities
of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and payable in the manner
and with the effect provided in the Indenture.

 

    	 	A-4	 

     

    

  

The Indenture permits, with certain exceptions
as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders
of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the
Holders of not less than a majority in principal amount of the Securities at the time Outstanding of each series to be affected. The Indenture
also contains provisions permitting the Holders of specified percentages in principal amount of the Securities of each series at the time
Outstanding, on behalf of the Holders of all Securities of such series, to waive compliance by the Company with certain provisions of
the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security
shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration
of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security.

 

As provided in and subject to the provisions of
the Indenture, the Holder of this Security shall not have the right to institute any proceeding with respect to the Indenture or for the
appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder shall have previously given the Trustee written
notice of a continuing Event of Default, other than an Event of Default referred to in Section 5.01(v) or Section 5.01(vi) of
the Indenture with respect to the Company (but including an Event of Default referred to in that section solely with respect to a Significant
Subsidiary, or group of Subsidiaries that in the aggregate would constitute a Significant Subsidiary of the Company), with respect to
the Securities of this series, the Holders of not less than 25% in principal amount of the Securities of this series at the time Outstanding
shall have made written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the
Trustee reasonable indemnity against the costs, expenses and liabilities to be incurred in compliance with such request, and the Trustee
shall not have received from the Holders of a majority in principal amount of Securities of this series at the time Outstanding a direction
inconsistent with such request, and shall have failed to institute any such proceeding, for sixty (60) days after receipt of such
notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted by the Holder of this Security for the enforcement
of any payment of principal hereof or any premium or interest hereon on or after the respective due dates expressed herein. If an Event
of Default referred to in Section 5.01(v) or Section 5.01(vi) of the Indenture with respect to the Company (and not solely with
respect to a Significant Subsidiary, or group of Subsidiaries that in the aggregate would constitute a Significant Subsidiary of the Company)
has occurred, the entire principal amount of all the Securities of this series shall automatically become due and immediately payable.

 

No reference herein to the Indenture and no provision
of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay
the principal of and any premium and interest on this Security at the times, place and rate, and in the coin or currency, herein prescribed.

 

As provided in the Indenture and subject to certain
limitations therein set forth, the transfer of this Security is registrable in the Security Register, upon surrender of this Security
for registration of transfer at the office or agency of the Company in any place where the principal of and any premium and interest on
this Security are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and
the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities
of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated
transferee or transferees.

 

The Securities of this series are issuable only
in registered form without coupons in denominations of $25 and any integral multiples of $25 in excess thereof. As provided in the Indenture
and subject to certain limitations therein set forth, Securities of this series are exchangeable for a like aggregate principal amount
of Securities of this series and of like tenor of a different authorized denomination, as requested by the Holder surrendering the same.

 

No service charge shall be made for any such registration
of transfer or exchange, but the Company or Trustee may require payment of a sum sufficient to cover any tax or other governmental charge
payable in connection therewith.

 

Prior to due presentment of this Security for registration
of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Security is
registered as the owner hereof for all purposes, whether or not this Security be overdue, and neither the Company, the Trustee nor any
such agent shall be affected by notice to the contrary.

 

All terms used in this Security which are defined
in the Indenture shall have the meanings assigned to them in the Indenture.

 

The Indenture and this Security shall be governed
by and construed in accordance with the laws of the State of New York, without regard to principles of conflicts of laws.

 

    	 	A-5

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