Opendoor COO Giang Nguyen sells 10,393 shares

The transaction was a Rule 10b5-1 “sell to cover” election to meet tax withholding upon settlement of previously granted restricted stock awards.

Rhea-AI Filing Summary

Opendoor Technologies Inc. (OPEN) Chief Operating Officer Giang Nguyen sold 10,393 shares on October 15, 2026, at a weighted average price of $1.974 per share; individual sales ranged from $1.935 to $2.005. The sale was made under a Rule 10b5-1 “sell to cover” election solely to satisfy tax withholding upon settlement of previously granted restricted stock awards. The footnote states that it was not a discretionary trade. Nguyen directly held 8,175,150 shares after the transaction.

Insider Trade Summary 10b5-1

Net Seller: 10,393 shares

Net Sell 1 txn

Insider Nguyen Giang

Role Chief Operating Officer

Sold 10,393 shs ($21K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	10,393	$1.974	$21K

Holdings After Transaction: Common Stock — 8,175,150 shares (Direct)

Footnotes (2)

1. F1. This sale was effected pursuant to a Rule 10b5-1 "sell to cover" election made by the Reporting Person for the sole purpose to satisfy the Reporting Person's tax withholding obligation upon the settlement of previously granted restricted stock awards. This sale does not represent a discretionary trade by the Reporting Person.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.935 to $2.005, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price at which the transactions were effected.

Key Figures

Shares sold: 10,393 shares Weighted average price: $1.974 per share Sale price range: $1.935 to $2.005 per share +1 more

4 metrics

Shares sold 10,393 shares October 15, 2026

Weighted average price $1.974 per share Sale on October 15, 2026

Sale price range $1.935 to $2.005 per share Prices in multiple transactions

Direct shares held after transaction 8,175,150 shares Giang Nguyen's reported position following the sale

Key Terms

Rule 10b5-1, sell to cover, weighted average price, restricted stock awards

4 terms

Rule 10b5-1 regulatory

"pursuant to a Rule 10b5-1 “sell to cover” election"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

sell to cover financial

"a Rule 10b5-1 “sell to cover” election"

Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.

weighted average price financial

"The price reported in Column 4 is a weighted average price"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

restricted stock awards financial

"settlement of previously granted restricted stock awards"

Restricted stock awards are company shares given to employees or executives that cannot be sold or transferred until certain conditions — like staying with the company for a set time or meeting performance targets — are met, like a gift that is locked in a safe until rules are satisfied. Investors care because these awards tie management’s pay to company performance, can increase the number of shares outstanding when they become tradable (dilution), and may signal expected future selling pressure or commitment to long-term growth.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many OPEN shares did Chief Operating Officer Giang Nguyen sell, and at what price?

Giang Nguyen sold 10,393 shares on October 15, 2026, at a weighted average price of $1.974 per share. Individual sales ranged from $1.935 to $2.005 per share. The sale was made under a Rule 10b5-1 “sell to cover” election to satisfy tax withholding upon settlement of previously granted restricted stock awards.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/16/2026 - 04:15 PM EDT Accepted by SEC EDGAR 10/16/2026 - 04:15 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Nguyen Giang

(Last) (First) (Middle)

1295 WEST WASHINGTON STREET, SUITE 115

(Street)

TEMPE ARIZONA 85288

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Opendoor Technologies Inc. [ OPEN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/15/2026		S(1)		10,393	D	$1.974(2)	8,175,150	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This sale was effected pursuant to a Rule 10b5-1 "sell to cover" election made by the Reporting Person for the sole purpose to satisfy the Reporting Person's tax withholding obligation upon the settlement of previously granted restricted stock awards. This sale does not represent a discretionary trade by the Reporting Person.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.935 to $2.005, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price at which the transactions were effected.

Remarks:

	/s/ Rishi Kotiya, Attorney-in-fact	10/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)