[Form 4] Opendoor Technologies Inc. Insider Trading Activity

Rhea-AI Filing Summary

Opendoor Technologies Inc. Chief Financial Officer Christina Schwartz reported an open-market sale of 74,348 shares of common stock at a weighted average price of $4.3322 per share. According to the disclosure, this Rule 10b5-1 “sell to cover” transaction was made solely to satisfy tax withholding obligations from previously granted restricted stock awards and was not a discretionary trade. Following the sale, Schwartz directly holds 3,769,866 shares of Opendoor common stock.

Insider Trade Summary 10b5-1

Net Seller: 74,348 shares ($322,090)

Net Sell 1 txn

Insider Schwartz Christina

Role Chief Financial Officer

Sold 74,348 shs ($322K)

Type	Security	Shares	Price	Value
Sale	Common Stock	74,348	$4.3322	$322K

Holdings After Transaction: Common Stock — 3,769,866 shares (Direct, null)

Footnotes (1)

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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.28 to $4.40, 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: 74,348 shares Average sale price: $4.3322 per share Price range: $4.28 to $4.40 +2 more

5 metrics

Shares sold 74,348 shares Open-market sale on 2026-05-15

Average sale price $4.3322 per share Weighted average transaction price

Price range $4.28 to $4.40 Range of prices for multiple transactions

Shares held after sale 3,769,866 shares Direct holdings following transaction

Net shares sold 74,348 shares Net-sell direction in transaction summary

Key Terms

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

5 terms

Rule 10b5-1 regulatory

"This sale was effected 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

"Rule 10b5-1 "sell to cover" election made by the Reporting Person"

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.

restricted stock awards financial

"tax withholding obligation upon the 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.

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.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 Insider Transactions: What Each Field Means →

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^*

Schwartz Christina

(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 Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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	05/15/2026		S(1)		74,348	D	$4.3322(2)	3,769,866	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 $4.28 to $4.40, 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/Christina Schwartz	05/19/2026
	** 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)

FAQ

What did Opendoor (OPEN) CFO Christina Schwartz disclose in this Form 4?

Opendoor CFO Christina Schwartz disclosed selling 74,348 shares of common stock. The sale was executed under a Rule 10b5-1 “sell to cover” election to satisfy tax withholding from previously granted restricted stock awards, rather than as a discretionary trade.

How many Opendoor (OPEN) shares did the CFO sell and at what price?

Christina Schwartz sold 74,348 Opendoor common shares at a weighted average price of $4.3322 per share. A footnote explains the shares were sold in multiple transactions, with prices ranging from $4.28 to $4.40, inclusive, on the transaction date.

Why did the Opendoor (OPEN) CFO sell these shares?

The shares were sold under a Rule 10b5-1 “sell to cover” election. The filing states the sole purpose was to cover the CFO’s tax withholding obligation upon settlement of previously granted restricted stock awards, and it notes this was not a discretionary trade.

How many Opendoor (OPEN) shares does the CFO hold after the sale?

After the reported transaction, Christina Schwartz directly holds 3,769,866 shares of Opendoor common stock. This post-transaction holding is disclosed in the Form 4, providing context for the size of the sale relative to her remaining ownership position.

What does Rule 10b5-1 mean in the Opendoor (OPEN) CFO’s transaction?

Rule 10b5-1 allows insiders to pre-establish trading plans for their shares. In this case, the CFO’s sale followed a Rule 10b5-1 “sell to cover” election, meaning the trades were prearranged to satisfy tax withholding on restricted stock awards rather than timed at her discretion.