OPEN

open-202602190001801169FALSE00018011692026-02-192026-02-190001801169us-gaap:CommonStockMember2026-02-192026-02-190001801169open:SeriesKWarrantsMember2026-02-192026-02-190001801169open:SeriesAWarrantsMember2026-02-192026-02-190001801169open:SeriesZWarrantsMember2026-02-192026-02-19

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): February 19, 2026 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

1295 West Washington Street, Suite 115

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe Nasdaq Stock Market LLC

Series K Warrants, each whole warrant exercisable to purchase one share of common stock at an exercise price of $9.00 per warrant

OPENW

The Nasdaq Stock Market LLC

Series A Warrants, each whole warrant exercisable to purchase one share of common stock at an exercise price of $13.00 per warrant

OPENL

The Nasdaq Stock Market LLC

Series Z Warrants, each whole warrant exercisable to purchase one share of common stock at an exercise price of $17.00 per warrant

OPENZ

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 2.02Results of Operations and Financial Condition On February 19, 2026, Opendoor Technologies Inc. (the “Company”) issued a press release announcing its financial results for the fourth quarter and year ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Item 7.01 Regulation FD Disclosure On February 19, 2026, the Company posted an earnings supplement (the “Supplement”) and supplemental macroeconomic charts (the “Supplemental Macro Charts”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement and the Supplemental Macro Charts is attached to this Current Report on Form 8-K as Exhibit 99.2 and 99.3, respectively. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on February 19, 2026

99.2Financial Supplement issued by Opendoor Technologies Inc. on February 19, 2026

99.3Supplemental Macro Charts issued by Opendoor Technologies Inc. on February 19, 2026

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: February 19, 2026 By:/s/ Christy Schwartz Name:Christy Schwartz Title:Chief Financial Officer

3

open-202511060001801169FALSE00018011692025-11-062025-11-06

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): November 6, 2025 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1000

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On November 6, 2025, Opendoor Technologies Inc. (the “Company”) issued a press release announcing its financial results for the third quarter ended September 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Item 7.01 Regulation FD Disclosure On November 6, 2025, the Company posted an earnings supplement (the “Supplement”) and supplemental macroeconomic charts (the “Supplemental Macro Charts”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement and the Supplemental Macro Charts is attached to this Current Report on Form 8-K as Exhibit 99.2 and 99.3, respectively. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on November 6, 2025

99.2Financial Supplement issued by Opendoor Technologies Inc. on November 6, 2025

99.3Supplemental Macro Charts issued by Opendoor Technologies Inc. on November 6, 2025

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: November 6, 2025 By:/s/ Christy Schwartz Name:Christy Schwartz Title:Interim Chief Financial Officer

3

open-202508050001801169FALSE00018011692025-08-052025-08-05

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): August 5, 2025 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1000

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On August 5, 2025, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the second quarter ended June 30, 2025. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item 7.01 Regulation FD Disclosure On August 5, 2025, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on August 5, 2025

99.2Shareholder Letter issued by Opendoor Technologies Inc. on August 5, 2025

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on August 5, 2025

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: August 5, 2025 By:/s/ Selim Freiha

Name:Selim Freiha

Title:Chief Financial Officer

3

open-202505060001801169FALSE00018011692025-05-062025-05-06

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): May 6, 2025 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1600

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On May 6, 2025, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the first quarter ended March 31, 2025. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item 7.01 Regulation FD Disclosure On May 6, 2025, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on May 6, 2025

99.2Shareholder Letter issued by Opendoor Technologies Inc. on May 6, 2025

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on May 6, 2025

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: May 6, 2025 By:/s/ Selim Freiha

Name:Selim Freiha

Title:Chief Financial Officer

3

open-202502270001801169FALSE00018011692025-02-272025-02-27

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): February 27, 2025 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1600

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On February 27, 2025, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the fourth quarter and year ended December 31, 2024. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item 7.01 Regulation FD Disclosure On February 27, 2025, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on February 27, 2025

99.2Shareholder Letter issued by Opendoor Technologies Inc. on February 27, 2025

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on February 27, 2025

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: February 27, 2025 By:/s/ Selim Freiha

Name:Selim Freiha

Title:Chief Financial Officer

3

open-202411070001801169FALSE00018011692024-11-072024-11-07

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): November 7, 2024 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1600

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On November 7, 2024, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the third quarter ended September 30, 2024. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item 7.01 Regulation FD Disclosure On November 7, 2024, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on November 7, 2024

99.2Shareholder Letter issued by Opendoor Technologies Inc. on November 7, 2024

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on November 7, 2024

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: November 7, 2024 By:/s/ Christina Schwartz Name:Christina Schwartz Title:Chief Accounting Officer

3

open-202408010001801169FALSE00018011692024-08-012024-08-01

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): August 1, 2024 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1600

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On August 1, 2024, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the second quarter ended June 30, 2024. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On August 1, 2024, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on August 1, 2024

99.2Shareholder Letter issued by Opendoor Technologies Inc. on August 1, 2024

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on August 1, 2024

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: August 1, 2024 By:/s/ Christina Schwartz Name:Christina Schwartz Title:Interim Chief Financial Officer

3

open-202405020001801169FALSE00018011692024-05-022024-05-02

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): May 2, 2024 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1600

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On May 2, 2024, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the first quarter ended March 31, 2024. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On May 2, 2024, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on May 2, 2024

99.2Shareholder Letter issued by Opendoor Technologies Inc. on May 2, 2024

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on May 2, 2024

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: May 2, 2024 By:/s/ Christina Schwartz Name:Christina Schwartz Title:Interim Chief Financial Officer

3

open-202402150001801169FALSE00018011692024-02-152024-02-15

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): February 15, 2024 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1600

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On February 15, 2024, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the fourth quarter and year ended December 31, 2023. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On February 15, 2024, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on February 15, 2024

99.2Shareholder Letter issued by Opendoor Technologies Inc. on February 15, 2024

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on February 15, 2024

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: February 15, 2024 By:/s/ Christina Schwartz Name:Christina Schwartz Title:Interim Chief Financial Officer

3

open-202311020001801169FALSE00018011692023-11-022023-11-02

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): November 2, 2023 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

410 N. Scottsdale Road, Suite 1600

Tempe,AZ 85288

(Address of principal executive offices) (Zip Code)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On November 2, 2023, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the third quarter ended September 30, 2023. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On November 2, 2023, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on November 2, 2023

99.2Shareholder Letter issued by Opendoor Technologies Inc. on November 2, 2023

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on November 2, 2023

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: November 2, 2023 By:/s/ Christina Schwartz Name:Christina Schwartz Title:Interim Chief Financial Officer

3

open-202308030001801169FALSE00018011692023-08-032023-08-03

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): August 3, 2023 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(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)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On August 3, 2023, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the second quarter ended June 30, 2023. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On August 3, 2023, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on August 3, 2023

99.2Shareholder Letter issued by Opendoor Technologies Inc. on August 3, 2023

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on August 3, 2023

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: August 3, 2023 By:/s/ Christina Schwartz Name:Christina Schwartz Title:Interim Chief Financial Officer

3

open-202305040001801169FALSE00018011692023-05-042023-05-04

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): May 4, 2023 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(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)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On May 4, 2023, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the first quarter ended March 31, 2023. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On May 4, 2023, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on May 4, 2023

99.2Shareholder Letter issued by Opendoor Technologies Inc. on May 4, 2023

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on May 4, 2023

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: May 4, 2023 By:/s/ Christina Schwartz Name:Christina Schwartz Title:Interim Chief Financial Officer

3

open-202302230001801169FALSE00018011692023-02-232023-02-23

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): February 23, 2023 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(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)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On February 23, 2023, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the fourth quarter and year ended December 31, 2022. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On February 23, 2023, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on February 23, 2023

99.2Shareholder Letter issued by Opendoor Technologies Inc. on February 23, 2023

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on February 23, 2023

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: February 23, 2023 By:/s/ Christina Schwartz Name:Christina Schwartz Title:Interim Chief Financial Officer

3

open-202211030001801169FALSE00018011692022-11-032022-11-03

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): November 3, 2022 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925330-1318214

(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)

(480) 618-6760 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On November 3, 2022, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the third quarter ended September 30, 2022. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On November 3, 2022, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on November 3, 2022

99.2Shareholder Letter issued by Opendoor Technologies Inc. on November 3, 2022

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on November 3. 2022

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: November 3, 2022 By:/s/ Carrie Wheeler Name:Carrie Wheeler Title:Chief Financial Officer

3

open-202208040001801169FALSE00018011692022-08-042022-08-04

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): August 4, 2022 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925398-1515020 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On August 4, 2022, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the second quarter ended June 30, 2022. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On August 4, 2022, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on August 4, 2022

99.2Shareholder Letter issued by Opendoor Technologies Inc. on August 4, 2022

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on August 4, 2022

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: August 4, 2022 By:/s/ Carrie Wheeler Name:Carrie Wheeler Title:Chief Financial Officer

3

open-202205050001801169FALSE00018011692022-05-052022-05-05

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): May 5, 2022 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925398-1515020 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On May 5, 2022, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the fourth quarter and year ended March 31, 2022. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On May 5, 2022, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on May 5, 2022

99.2Shareholder Letter issued by Opendoor Technologies Inc. on May 5, 2022

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on May 5, 2022

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: May 5, 2022 By:/s/ Carrie Wheeler Name:Carrie Wheeler Title:Chief Financial Officer

3

open-202202240001801169FALSE00018011692022-02-242022-02-24

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): February 24, 2022 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925398-1515020 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On February 24, 2022, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the fourth quarter and year ended December 31, 2021. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On February 24, 2022, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release issued by Opendoor Technologies Inc. on February 24, 2022

99.2Shareholder Letter issued by Opendoor Technologies Inc. on February 24, 2022

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on February 24, 2022

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: February 24, 2022 By:/s/ Carrie Wheeler Name:Carrie Wheeler Title:Chief Financial Officer

3

open-202111100001801169FALSE00018011692021-11-102021-11-10

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): November 10, 2021 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925398-1515020 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On November 10, 2021, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the quarter ended September 30, 2021. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On November 10, 2021, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release dated November 10, 2021

99.2Shareholder Letter issued by Opendoor Technologies Inc. on November 10, 2021

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on November 10, 2021

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: November 10, 2021 By:/s/ Carrie Wheeler Name:Carrie Wheeler Title:Chief Financial Officer

3

open-202108110001801169FALSE00018011692021-08-112021-08-11

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): August 11, 2021 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925398-1515020 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe 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 2.02Results of Operations and Financial Condition On August 11, 2021, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the quarter ended June 30, 2021. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On August 11, 2021, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release dated August 11, 2021

99.2Shareholder Letter issued by Opendoor Technologies Inc. on August 11, 2021

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on August 11, 2021

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: August 11, 2021 By:/s/ Carrie Wheeler Name:Carrie Wheeler Title:Chief Financial Officer

3

open-202105110001801169FALSE00018011692021-05-112021-05-110001801169us-gaap:CommonStockMember2021-05-112021-05-110001801169us-gaap:WarrantMember2021-05-112021-05-11

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): May 11, 2021 Opendoor Technologies Inc. (Exact name of registrant as specified in its charter)

Delaware001-3925398-1515020 (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 classTrading Symbol(s)Name of each exchange on which registered

Common stock, $0.0001 par value per shareOPENThe Nasdaq Stock Market LLC

Warrants to purchase one share of common stockOPENWThe 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 2.02Results of Operations and Financial Condition On May 11, 2021, Opendoor Technologies Inc. (the “Company”) issued a press release and a shareholder letter announcing its financial results for the quarter ended March 31, 2021. A copy of the press release and the shareholder letter is furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K.

Item  7.01 Regulation FD Disclosure On May 11, 2021, the Company posted an earnings supplement (the “Supplement”) in the “Investor Relations” portion of its website at investor.opendoor.com. A copy of the Supplement is attached to this Current Report on Form 8-K as Exhibit 99.3. The information contained in Items 2.02 and 7.01 of this Current Report (including Exhibits 99.1, 99.2, and 99.3 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.Financial Statements and Exhibits (d)Exhibits.

Exhibit No.Description

99.1 Press Release dated May 11, 2021

99.2Shareholder Letter issued by Opendoor Technologies Inc. on May 11, 2021

99.3Supplement entitled “Financial Supplement” issued by Opendoor Technologies Inc. on May 11, 2021

104Cover Page Interactive Data File (Cover page XBRL tags are embedded within the Inline XBRL document)

2

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: May 11, 2021 By:/s/ Carrie Wheeler Name:Carrie Wheeler Title:Chief Financial Officer

3