EX-10.3





 Exhibit 10.3 

PRIVATE PLACEMENT SHARES PURCHASE AGREEMENT 

THIS PRIVATE PLACEMENT SHARES PURCHASE AGREEMENT, dated as of March [ ], 2021 (as it may from time to time be amended and including all
exhibits referenced herein, this “Agreement”), is entered into by and between Khosla Ventures Acquisition Co. III, a Delaware corporation (the “Company”) and Khosla Ventures SPAC Sponsor III LLC, a Delaware limited
liability company (the “Purchaser”). 
 WHEREAS, the Company intends to consummate an initial public offering of the
Company’s shares (the “Public Offering”), of the Company’s Class A common stock, par value $0.0001 per share (each, a “Class A share”) as set forth in the Company’s
Registration Statement on Form S-1, filed with the U.S. Securities and Exchange Commission (the “SEC”), File Number 333-253101 (the
“Registration Statement”), under the Securities Act of 1933, as amended (the “Securities Act”); 

WHEREAS, the Purchaser has agreed to purchase an aggregate of 1,300,000 Shares (or 1,450,000 Shares in the aggregate if the over-allotment
option in connection with the Public Offering is exercised in full) (the “Private Placement Shares”), at a purchase price of $10.00 per Class A share. 

NOW THEREFORE, in consideration of the mutual promises contained in this Agreement and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties to this Agreement hereby, intending legally to be bound, agree as follows: 

AGREEMENT 
 Section 1.
Authorization, Purchase and Sale; Terms of the Private Placement Shares. 
 A. Authorization of the Private Placement Shares. The
Company has duly authorized the issuance and sale of the Private Placement Shares to the Purchaser. 
 B. Purchase and Sale of the Private
Placement Shares. 
 (i) On the date of the consummation of the Public Offering or on such earlier time and date as may be mutually
agreed by the Purchaser and the Company (the “IPO Closing Date”), the Company shall issue and sell to the Purchaser, and the Purchaser shall purchase from the Company, 1,300,000 Private Placement Shares at a price of $10.00 per
Share for an aggregate purchase price of $13,000,000 (the “Purchase Price”). The Purchaser shall pay the Purchase Price by wire transfer of immediately available funds to the Company, to the trust account, at a financial institution
to be chosen by the Company, maintained by Continental Stock Transfer & Trust Company, acting as trustee, in accordance with the Company’s wiring instructions (the “Trust Account”), at least one (1) business day
prior to the IPO Closing Date. On the IPO Closing Date, upon the payment by the Purchaser of the Purchase Price, by wire transfer of immediately available funds to the Company, the Company, at its option, shall deliver a certificate evidencing the
Private Placement Shares purchased by the Purchaser on such date duly registered in the Purchaser’s name to the Purchaser or effect such delivery in book-entry form. 












 (ii) On the date of any closing of the over-allotment option, if any, in connection with the
Public Offering or on such earlier time and date as may be mutually agreed by the Purchaser and the Company (each such date, an “Over-allotment Closing Date,” and each Over-allotment Closing Date (if any) and the IPO Closing Date,
being sometimes referred to herein as a “Closing Date”), the Company shall issue and sell to the Purchaser, and the Purchaser shall purchase from the Company, up to an aggregate of 150,000 Private Placement Shares, in the same
proportion as the amount of the option that is then so exercised, at a price of $10.00 per Share for an aggregate purchase price of up to $1,500,000 (if the over-allotment option in connection with the Public Offering is exercised in full) (the
“Over-allotment Purchase Price”). The Purchaser shall pay the Over-allotment Purchase Price in accordance with the Company’s wire instruction by wire transfer of immediately available funds to the Trust Account at least one
(1) business day prior to such Over-allotment Closing Date. On the Over-allotment Closing Date, following the payment by the Purchaser of the Over-allotment Purchase Price by wire transfer of immediately available funds to the Company, the
Company, at its option, shall deliver a certificate evidencing the Private Placement Shares purchased by the Purchaser on such date duly registered in the Purchaser’s name to the Purchaser, or effect such delivery in book-entry form. 

C. Terms of the Private Placement Shares. At the time of, or prior to, the closing of the Public Offering, the Company and the Purchaser
shall enter into a registration rights agreement (the “Registration Rights Agreement”) pursuant to which the Company will grant certain registration rights to the Purchaser relating to the Private Placement Shares. 

Section 2. Representations and Warranties of the Company. As a material inducement to the Purchaser to enter into this
Agreement and purchase the Private Placement Shares, the Company hereby represents and Shares to the Purchaser (which representations and warranties shall survive each Closing Date) that: 

A. Incorporation and Corporate Power. The Company is a corporation duly incorporated, validly existing and in good standing under the
laws of the State of Delaware and is qualified to do business in every jurisdiction in which the failure to so qualify would reasonably be expected to have a material adverse effect on the financial condition, operating results or assets of the
Company. The Company possesses all requisite corporate power and authority necessary to carry out the transactions contemplated by this Agreement. 

B. Authorization; No Breach. 

(i) The execution, delivery and performance of this Agreement and the issuance of the Private Placement Shares have been duly authorized by the
Company as of the IPO Closing Date. This Agreement constitutes the valid and binding obligation of the Company, enforceable in accordance with its terms, subject to bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and other
laws of general applicability relating to or affecting creditors’ rights and to general equitable principles (whether considered in a proceeding in equity or law). 

  
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 (ii) The execution and delivery by the Company of this Agreement, the issuance and sale of
the Private Placement Shares and the fulfillment, of and compliance with, the respective terms hereof by the Company, do not and will not as of each Closing Date (a) conflict with or result in a breach of the terms, conditions or provisions of,
(b) constitute a default under, (c) result in the creation of any lien, security interest, charge or encumbrance upon the Company’s capital stock or assets under, (d) result in a violation of, or (e) require any
authorization, consent, approval, exemption or other action by or notice or declaration to, or filing with, any court or administrative or governmental body or agency pursuant to, the amended and restated certificate of incorporation of the Company
or the amended and restated bylaws of the Company (in effect on the date hereof or as may be amended prior to completion of the Public Offering), or any material law, statute, rule or regulation to which the Company is subject, or any agreement,
order, judgment or decree to which the Company is subject, except for any filings required after the date hereof under federal or state securities laws. 

C. Title to Securities. Upon issuance in accordance with, and payment pursuant to, the terms hereof, the Class A shares will be
duly and validly issued, fully paid and nonassessable. Upon issuance in accordance with, and payment pursuant to, the terms hereof, the Purchaser will have good title to the Private Placement Shares, free and clear of all liens, claims and
encumbrances of any kind, other than (i) transfer restrictions hereunder and under the other agreements contemplated hereby, (ii) transfer restrictions under federal and state securities laws, and (iii) liens, claims or encumbrances
imposed due to the actions of the Purchaser. 
 D. Governmental Consents. No permit, consent, approval or authorization of, or
declaration to or filing with, any governmental authority is required in connection with the execution, delivery and performance by the Company of this Agreement or the consummation by the Company of any other transactions contemplated hereby. 

E. Regulation D Qualification. Neither the Company nor, to its actual knowledge, any of its affiliates, members, officers, directors or
beneficial shareholders of 20% or more of its outstanding securities, has experienced a disqualifying event as enumerated pursuant to Rule 506(d) of Regulation D under the Securities Act. 

Section 3. Representations and Warranties of the Purchaser. As a material inducement to the Company to enter into this
Agreement and issue and sell the Private Placement Shares to the Purchaser, the Purchaser hereby represents and warrants to the Company (which representations and warranties shall survive each Closing Date) that: 

A. Organization and Requisite Authority. The Purchaser possesses all requisite power and authority necessary to carry out the
transactions contemplated by this Agreement. 
 B. Authorization; No Breach. 

(i) This Agreement constitutes a valid and binding obligation of the Purchaser, enforceable in accordance with its terms, subject to
bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and other laws of general applicability relating to or affecting creditors’ rights and to general equitable principles (whether considered in a proceeding in equity or
law). 

  
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 (ii) The execution and delivery by the Purchaser of this Agreement and the fulfillment of
and compliance with the terms hereof by the Purchaser does not and shall not as of each Closing Date (a) conflict with or result in a breach by the Purchaser of the terms, conditions or provisions of, (b) constitute a default under,
(c) result in the creation of any lien, security interest, charge or encumbrance upon the Purchaser’s equity or assets under, (d) result in a violation of, or (e) require any authorization, consent, approval, exemption or other
action by or notice or declaration to, or filing with, any court or administrative or governmental body or agency pursuant to the Purchaser’s organizational documents in effect on the date hereof or as may be amended prior to completion of the
contemplated Public Offering, or any material law, statute, rule or regulation to which the Purchaser is subject, or any agreement, instrument, order, judgment or decree to which the Purchaser is subject, except for any filings required after the
date hereof under federal or state securities laws. 
 C. Investment Representations. 

(i) The Purchaser is acquiring the Private Placement Shares (the “Securities”), for the Purchaser’s own account, for
investment purposes only and not with a view towards, or for resale in connection with, any public sale or distribution thereof. 
 (ii) The
Purchaser is an “accredited investor” as such term is defined in Rule 501(a)(3) of Regulation D, and the Purchaser has not experienced a disqualifying event as enumerated pursuant to Rule 506(d) of Regulation D under the Securities Act.

 (iii) The Purchaser understands that the Securities are being offered and will be sold to it in reliance on specific exemptions from the
registration requirements of the United States federal and state securities laws and that the Company is relying upon the truth and accuracy of, and the Purchaser’s compliance with, the representations and warranties of the Purchaser set forth
herein in order to determine the availability of such exemptions and the eligibility of the Purchaser to acquire such Securities. 
 (iv) The
Purchaser did not decide to enter into this Agreement as a result of any general solicitation or general advertising within the meaning of Rule 502(c) of Regulation D under the Securities Act. 

(v) The Purchaser has been furnished with all materials relating to the business, finances and operations of the Company and materials relating
to the offer and sale of the Securities which have been requested by the Purchaser. The Purchaser has been afforded the opportunity to ask questions of the executive officers and directors of the Company. The Purchaser understands that its
investment in the Securities involves a high degree of risk and it has sought such accounting, legal and tax advice as it has considered necessary to make an informed investment decision with respect to the acquisition of the Securities. 

(vi) The Purchaser understands that no United States federal or state agency or any other government or governmental agency has passed on or
made any recommendation or endorsement of the Securities or the fairness or suitability of the investment in the Securities by the Purchaser nor have such authorities passed upon or endorsed the merits of the offering of the Securities. 

  
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 (vii) The Purchaser understands that: (a) the Securities have not been and are not
being registered under the Securities Act or any state securities laws, and may not be offered for sale, sold, assigned or transferred unless (1) subsequently registered thereunder or (2) sold in reliance on an exemption therefrom; and
(b) except as specifically set forth in the Registration Rights Agreement, neither the Company nor any other person is under any obligation to register the Securities under the Securities Act or any state securities laws or to comply with the
terms and conditions of any exemption thereunder. In this regard, the Purchaser understands that the SEC has taken the position that promoters or affiliates of a blank check company and their transferees, both before and after an initial Business
Combination, are deemed to be “underwriters” under the Securities Act when reselling the securities of a blank check company. Based on that position, Rule 144 adopted pursuant to the Securities Act would not be available for resale
transactions of the Securities despite technical compliance with the requirements of such Rule, and the Securities can be resold only through a registered offering or in reliance upon another exemption from the registration requirements of the
Securities Act. 
 (viii) The Purchaser has such knowledge and experience in financial and business matters, knowledge of the high degree of
risk associated with investments in the securities of companies in the development stage such as the Company, is capable of evaluating the merits and risks of an investment in the Securities and is able to bear the economic risk of an investment in
the Securities in the amount contemplated hereunder for an indefinite period of time. The Purchaser has adequate means of providing for its current financial needs and contingencies and will have no current or anticipated future needs for liquidity
which would be jeopardized by the investment in the Securities. The Purchaser can afford a complete loss of its investments in the Securities. 

(ix) The Purchaser understands that the Private Placement Shares shall bear the legend substantially in the form set forth below: 

“THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY
STATE OR OTHER JURISDICTION, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT AND LAWS. THE SALE, PLEDGE, HYPOTHECATION, OR TRANSFER OF THE SECURITIES REPRESENTED HEREBY ARE SUBJECT TO THE TERMS AND CONDITIONS OF A CERTAIN PRIVATE PLACEMENT
SHARES PURCHASE AGREEMENT BY AND AMONG THE HOLDER AND THE COMPANY. COPIES OF SUCH AGREEMENT MAY BE OBTAINED UPON WRITTEN REQUEST TO THE SECRETARY OF THE COMPANY.” 

Section 4. Conditions of the Purchaser’s Obligations. The obligations of the Purchaser to purchase and pay for the
Private Placement Shares are subject to the fulfillment, on or before each Closing Date, of each of the following conditions: 
 A.
Representations and Warranties. The representations and warranties of the Company contained in Section 2 shall be true and correct at and as of such Closing Date as though then made. 

  
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 B. Performance. The Company shall have performed and complied with all agreements,
obligations and conditions contained in this Agreement that are required to be performed or complied with by it on or before such Closing Date. 

C. No Injunction. No litigation, statute, rule, regulation, executive order, decree, ruling or injunction shall have been enacted,
entered, promulgated or endorsed by or in any court or governmental authority of competent jurisdiction or any self-regulatory organization having authority over the matters contemplated hereby, which prohibits the consummation of any of the
transactions contemplated by this Agreement. 
 D. Registration Rights Agreement. The Company shall have entered into the Registration
Rights Agreement, in the form of Exhibit A hereto, in each case on terms satisfactory to the Purchaser. 

Section 5. Conditions of the Company’s Obligations. The obligations of the Company to the Purchaser under this
Agreement are subject to the fulfillment, on or before each Closing Date, of each of the following conditions: 
 A. Representations and
Warranties. The representations and warranties of the Purchaser contained in Section 3 shall be true and correct at and as of such Closing Date as though then made. 

B. Performance. The Purchaser shall have performed and complied with all agreements, obligations and conditions contained in this
Agreement that are required to be performed or complied with by the Purchaser on or before such Closing Date. 
 C. Corporate
Consents. The Company shall have obtained the consent of its Board of Directors authorizing the execution, delivery and performance of this Agreement and the issuance and sale of the Private Placement Shares hereunder. 

D. No Injunction. No litigation, statute, rule, regulation, executive order, decree, ruling or injunction shall have been enacted,
entered, promulgated or endorsed by or in any court or governmental authority of competent jurisdiction or any self-regulatory organization having authority over the matters contemplated hereby, which prohibits the consummation of any of the
transactions contemplated by this Agreement. 
 Section 6. Termination. This Agreement may be terminated at any time
after December 31, 2021 upon the election by either the Company or the Purchaser upon written notice to the other party if the closing of the Public Offering does not occur prior to such date. 

Section 7. Survival of Representations and Warranties. All of the representations and warranties contained herein shall
survive each Closing Date. 
 Section 8. Definitions. Terms used but not otherwise defined in this Agreement shall have
the meaning assigned to such terms in the Registration Statement. 

  
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 Section 9. Miscellaneous. 

A. Successors and Assigns. Except as otherwise expressly provided herein, all covenants and agreements contained in this Agreement by or
on behalf of any of the parties hereto shall bind and inure to the benefit of the respective successors of the parties hereto whether so expressed or not. Notwithstanding the foregoing or anything to the contrary herein, the parties may not assign
this Agreement, other than assignments by the Purchaser to affiliates thereof. 
 B. Severability. Whenever possible, each provision
of this Agreement shall 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 prohibited by or invalid under applicable law, such provision shall be ineffective only to
the extent of such prohibition or invalidity, without invalidating the remainder of this Agreement. 
 C. Counterparts. This Agreement
may be executed simultaneously in two or more counterparts, none of which need contain the signatures of more than one party, but all such counterparts taken together shall constitute one and the same agreement. 

D. Descriptive Headings; Interpretation. The descriptive headings of this Agreement are inserted for convenience only and do not
constitute a substantive part of this Agreement. The use of the word “including” in this Agreement shall be by way of example rather than by limitation. 

E. Governing Law. This Agreement shall be deemed to be a contract made under the laws of the State of Delaware and for all purposes
shall be construed in accordance with the internal laws of the State of Delaware, without giving effect to conflicts of law principles that would result in the application of the laws of another jurisdiction. 

F. Amendments. This Agreement may not be amended, modified or waived as to any particular provision, except by a written instrument
executed by all parties hereto. 
 [Signature page follows] 

  
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 IN WITNESS WHEREOF, the parties hereto have executed this Agreement to be effective
as of the date first set forth above. 
  

			
	COMPANY:
	KHOSLA VENTURES ACQUISITION CO. III
		
	By:	 	  

		 	Name: Peter Buckland
		 	Title: Chief Financial Officer
	
	PURCHASER:
	 KHOSLA VENTURES SPAC SPONSOR III LLC

By: Khosla Ventures SPAC Sponsor Services LLC, its Managing Member

		
	By:	 	  

		 	Name: Peter Buckland
		 	Title: Chief Financial Officer














 EXHIBIT A 

Registration Rights Agreement