Document:

EXHIBIT 10.46

 

NanoVibronix, Inc.

525 Executive Boulevard

Elmsford, New York 10523

 

______________, 2017

 

Investors listed on signature page hereto

 

Re: Amendment to Warrant

 

Ladies and Gentlemen:

 

Reference is made to
those certain securities purchase agreements NanoVironix, Inc. (the “Company”) entered into in January
and February of 2015 with certain investors identified on the signature pages thereto, including the investors listed on the signature
page hereto (the “Investors”), providing for the issuance of shares of common stock, series C preferred
stock and warrants to purchase shares of common stock (the “Warrants”), pursuant to which the Company
issued an aggregate of 833,333 shares of series C preferred stock, 216,667 shares of common stock and Warrants to purchase 420,000
shares of common stock at an exercise price of $3.00 per share and Warrants to purchase 420,000 shares of common stock at an exercise
price of $6.00 per share. All capitalized terms in this letter (the “Letter Agreement”) shall have the
meanings assigned to them under the Warrants, unless otherwise defined herein.

 

The Company and the
Investors desire to extend the initial expiration date of the Warrants. Amendments may be made to the Warrants with the consent
of the Company and each holder of the Warrants. By signature and countersignature below, for good and valuable consideration, the
receipt and sufficiency of which is hereby acknowledged, the Company and each holder of the Warrants agree to the following:

 

		1)	The year in the expiration date, “2017,” in the preamble of the Warrants is hereby
amended by deleting the said year and substituting in lieu thereof “2019.”

 

Except as modified
pursuant hereto, no other changes or modifications to the Warrants are intended or implied and in all other respects the Warrants
are hereby specifically ratified, restated and confirmed by all parties hereto as of the effective date hereof. To the extent of
a conflict between the terms of this Letter Agreement and the Warrants, the terms of this Letter Agreement shall control. The Warrants
and this Letter Agreement shall be read and construed as one agreement.

 

Please return an executed,
counter-signed copy of this Letter Agreement to NanoVibronix, Inc., either (i) by facsimile transmission by fax at [ ] or (ii)
by e-mail to Stephen Brown at stevebrowncpa@gmail.com, by 11:59 p.m. New York time, on _____________, 2017.

 

[Signature Page Follows]

  
 

     

     

    

 

[Signature Page to Letter Agreement]

 

 

	 	Very truly yours, 
	 	
         

        NanoVibronix, Inc.

	 	 
	 	By:______________________________ 
	 	Name:  Stephen Brown
	 	Title:  Chief Financial Officer

        

Acknowledged and Agreed:

 

	 	 
	Name of Investor:	Names of Investors (if held jointly, as tenants in common, or as

 community property):
	 	 
	By:______________________________ 	By: __________________________
	Name: 	Name:
	Title: 	Title:

 

	 	By: __________________________
	 	Name:
	 	Title:EXHIBIT 10.51

 

FIRST AMENDMENT TO

NONQUALIFIED STOCK OPTION AGREEMENT

 

This First Amendment
to Nonqualified Stock Option Agreement (this “Amendment”) is hereby made and entered into as of March
30, 2017 (the “Effective Date”), by and between NanoVibronix, Inc., a Delaware corporation (the “Company”),
and Ira A. Greenstein (the “Participant”). Terms used in this Amendment with initial capital letters
that are not otherwise defined herein shall have the meanings ascribed to such terms in that certain Nonqualified Stock Option
Agreement, dated July 18, 2016, by and between the Company and the Participant (the “Option Agreement”)
and in the NanoVibronix, Inc. 2014 Long-Term Incentive Plan.

 

WHEREAS, pursuant
to the Option Agreement, the Company granted the Participant an option to purchase a total of forty thousand (40,000) full shares
of Common Stock of the Company (the “Option”), with an exercise price of $5.35 per share, and vesting
on July 18, 2017;

 

WHEREAS, the
Participant intends to resign from his position as Chairman of the Board of Directors of the Company and, pursuant to Section 4
of the Option Agreement, upon such resignation all of the Option would be forfeited;

 

WHEREAS, in
recognition of the Participant’s service to the Company, the Company desires to amend the Option Agreement to (i) accelerate
the vesting of the Option so that it will be fully vested as of the date hereof and, consequently, will not be forfeited upon the
Participant’s resignation; and (ii) permit the Participant to exercise the Option at any time prior to the expiration of
the Option Period; and

 

WHEREAS, Section
23 of the Option Agreement provides that it can be amended by a writing signed by the parties thereto, and the Company and the
Participant now desire to amend the Option Agreement as described above.

 

NOW, THEREFORE,
pursuant to Section 23 of the Option Agreement, in consideration of the mutual promises, conditions, and covenants contained herein
and in the Option Agreement, and other good and valuable consideration, the adequacy of which is hereby acknowledged, the parties
agree as follows:

 

1.       Effective
as of the Effective Date, Section 3 of the Option Agreement is hereby amended by deleting said section in its entirety and substituting
in lieu thereof the following new Section 3:

 

3.       Vesting;
Time of Exercise. Except as specifically provided in this Agreement and subject to certain restrictions and conditions set
forth in the Plan, 100% of the total Optioned Shares shall vest and become exercisable as of March 30, 2017.

 

2.       Effective
as of the Effective Date, Section 4 of the Option Agreement is hereby amended by deleting said section in its entirety and substituting
in lieu thereof the following new Section 4:

 

4.       Term;
Forfeiture. Except as otherwise provided in this Agreement, the unexercised portion of this Stock Option that relates to Optioned
Shares that are vested will terminate at the first to occur of the following:

 

		(a)	5 p.m. on the date the Option Period terminates; and

 

		(b)	5 p.m. on the date the Company causes any portion of the Stock Option to
be forfeited pursuant to Section 7 hereof.

 

    	 	 	 

     

    

 

3.       
Except as expressly amended by this Amendment, the Option Agreement shall continue in full force and effect in accordance with
the provisions thereof.

 

 

********

 

 

 

     

     

    

 

IN WITNESS WHEREOF,
the parties hereto have executed this Amendment, effective as of the Effective Date.

 

	 	Nanovibronix, Inc.:	 
	 	 	 	 	 
	 	 	 	 	 
	 	By: 	/s/ Stephen Brown	 	 
	 	Name:	Stephen Brown	 	 
	 	Title:	CFO	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	Participant:	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	/s/ Ira A. Greenstein	 	 
	 	Name:   Ira A. Greenstein	 	 
	 	 	 	 
	 	Address:	********	 	 
	 	 	********	 	 
	 	 	********	 	 

 

 

Signature Page to

First Amendment to Nonqualified Stock Option AgreementEXHIBIT 10.52

 

FIRST AMENDMENT TO

NONQUALIFIED STOCK OPTION AGREEMENT

 

This First Amendment
to Nonqualified Stock Option Agreement (this “Amendment”) is hereby made and entered into as of March
30, 2017 (the “Effective Date”), by and between NanoVibronix, Inc., a Delaware corporation (the “Company”),
and Ira A. Greenstein (the “Participant”). Terms used in this Amendment with initial capital letters
that are not otherwise defined herein shall have the meanings ascribed to such terms in that certain Nonqualified Stock Option
Agreement, dated March 25, 2015, by and between the Company and the Participant (the “Option Agreement”)
and in the NanoVibronix, Inc. 2014 Long-Term Incentive Plan.

 

WHEREAS, pursuant
to the Option Agreement, the Company granted the Participant an option to purchase a total of thirty thousand (30,000) full shares
of Common Stock of the Company (the “Option”), with an exercise price of $2.57 per share, which vested
on March 25, 2016;

 

WHEREAS, the
Participant intends to resign from his position as Chairman of the Board of Directors of the Company and, pursuant to Section 4
of the Option Agreement, upon such resignation the Option will only remain exercisable for 90 days;

 

WHEREAS, in
recognition of the Participant’s service to the Company, the Company desires to amend the Option Agreement to permit the
Participant to exercise the Option at any time prior to the expiration of the Option Period; and

 

WHEREAS, Section
23 of the Option Agreement provides that it can be amended by a writing signed by the parties thereto, and the Company and the
Participant now desire to amend the Option Agreement as described above.

 

NOW, THEREFORE,
pursuant to Section 23 of the Option Agreement, in consideration of the mutual promises, conditions, and covenants contained herein
and in the Option Agreement, and other good and valuable consideration, the adequacy of which is hereby acknowledged, the parties
agree as follows:

 

1.       Effective
as of the Effective Date, Section 4 of the Option Agreement is hereby amended by deleting said section in its entirety and substituting
in lieu thereof the following new Section 4:

 

4.       Term;
Forfeiture. Except as otherwise provided in this Agreement, the unexercised portion of this Stock Option that relates to Optioned
Shares that are vested will terminate at the first to occur of the following:

 

		(a)	5 p.m. on the date the Option Period terminates; and

 

		(b)	5 p.m. on the date the Company causes any portion of the Stock Option to
be forfeited pursuant to Section 7 hereof.

 

2.       
Except as expressly amended by this Amendment, the Option Agreement shall continue in full force and effect in accordance with
the provisions thereof.

 

 

********

  

     

     

    

 

IN WITNESS WHEREOF,
the parties hereto have executed this Amendment, effective as of the Effective Date.

 

	 	Nanovibronix, Inc.:	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	By: 	/s/ Stephen Brown	 	 
	 	Name:	Stephen Brown	 	 
	 	Title:	CFO	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	Participant:	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	/s/ Ira A. Greenstein	 	 
	 	Name: Ira A. Greenstein	 	 
	 	 	 	 	 
	 	Address:	********	 	 
	 	 	********	 	 
	 	 	********	 	 

 

 

Signature Page to

First Amendment to Nonqualified Stock Option Agreement

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