Filed pursuant to Rule 424(b)(3)

Registration Statement No. 333-251529

Prospectus Supplement No. 3

(To Prospectus dated March 12, 2021)

OPENDOOR TECHNOLOGIES INC.

This prospectus supplement updates, amends and supplements the prospectus dated March 12, 2021 (the “Prospectus”), which forms a part of our Registration Statement on Form S-1 (Registration No. 333-251529). Capitalized terms used in this prospectus supplement and not otherwise defined herein have the meanings specified in the Prospectus.

This prospectus supplement is being filed to update, amend and supplement the information included in the Prospectus with the information contained in our Current Report on Form 8-K filed with the SEC on June 9, 2021, which is set forth below.

This prospectus supplement is not complete without the Prospectus. This prospectus supplement should be read in conjunction with the Prospectus, which is to be delivered with this prospectus supplement, and is qualified by reference thereto, except to the extent that the information in this prospectus supplement updates or supersedes the information contained in the Prospectus. Please keep this prospectus supplement with your Prospectus for future reference.

Opendoor Technologies Inc.’s common stock and warrants are quoted on the Nasdaq Global Select Market under the symbols “OPEN” and “OPENW,” respectively. On June 8, 2021, the closing prices of our common stock and warrants were $17.87 and $7.04, respectively.

INVESTING IN OUR SECURITIES INVOLVES CERTAIN RISKS. SEE “RISK FACTORS” BEGINNING ON PAGE 6 OF THE PROSPECTUS.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if the Prospectus or this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus supplement is June 9, 2021

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________________

FORM 8-K

__________________________________

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 9, 2021

Opendoor Technologies Inc.

(Exact name of registrant as specified in its charter)

Delaware	001-39253	98-1515020
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)
410 N. Scottsdale Road, Suite 1600
Tempe,	AZ	85281
(Address of principal executive offices)		(Zip Code)

(415) 896-6737

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, $0.0001 par value per share	OPEN	The Nasdaq Stock Market LLC
Warrants to purchase one share of common stock	OPENW	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 8.01Other Events.

On June 9, 2021, Opendoor Technologies Inc. (the “Company”) issued a press release announcing the redemption of all of its outstanding warrants to purchase shares of the Company’s common stock, par value $0.0001 per share, that were issued under the Warrant Agreement, dated April 27, 2020, by and between the Company and Continental Stock Transfer & Trust Company (“CST”), as warrant agent, as amended by the First Amendment to the Warrant Agreement, dated March 22, 2021, by and among the Company, CST and American Stock Transfer & Trust Company, as warrant agent. A copy of the press release is filed as Exhibit 99.1 hereto and is incorporated herein by reference.

A copy of the Notice of Redemption delivered by the Company is filed as Exhibit 99.2 hereto and is incorporated herein by reference.

Neither this Current Report on Form 8-K, the press release attached hereto as Exhibit 99.1 nor the Notice of Redemption attached hereto as Exhibit 99.2 constitutes an offer to sell or the solicitation of an offer to buy any of the Company’s securities, and shall not constitute an offer, solicitation or sale in any jurisdiction in which such offering, solicitation or sale would be unlawful.

Item 9.01Financial Statements and Exhibits.

(d)Exhibits.

Exhibit No.	Description
99.1	Press Release dated June 9, 2021
99.2	Notice of Redemption dated June 9. 2021

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	Opendoor Technologies Inc.
Date: June 9, 2021	By:	/s/ Carrie Wheeler
	Name:	Carrie Wheeler
	Title:	Chief Financial Officer

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