Xos director sells 15,000 shares around $3

A director of Xos, Inc. disclosed open-market sales totaling 15,000 shares and reported remaining unvested RSUs.

Rhea-AI Filing Summary

Xos, Inc. (XOS) director Dietmar Ostermann reported two open-market sales of common stock. On September 2, 2026, he sold 10,000 shares at a weighted average price of $3.02 per share, with actual prices ranging from $3.02 to $3.04. On September 4, 2026, he sold an additional 5,000 shares at $3.00 per share. No Rule 10b5-1 trading plan is reported, and his reported holdings after these transactions include 60,584 unvested RSUs, though the total share count is not stated.

Insider Trade Summary

Net Seller: 15,000 shares

Net Sell 2 txns

Insider OSTERMANN DIETMAR

Role Director

Sold 15,000 shs ($45K)

Type	Security	Shares	Price	Value
Sale	Common Stock F2	5,000	$3.00	$15K
Sale	Common Stock F1, F2	10,000	$3.022	$30K

Holdings After Transaction: Common Stock — 90,226 shares (Direct)

Footnotes (2)

1. F1. Represents weighted average sales price. The shares were sold at prices ranging from $3.02 to $3.04. The Reporting Person will provide upon request, to the SEC, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.
2. F2. Includes 60,584 unvested RSUs.

Key Figures

Shares sold September 2, 2026: 10,000 shares Weighted average sale price September 2, 2026: $3.02 per share Shares sold September 4, 2026: 5,000 shares +3 more

6 metrics

Shares sold September 2, 2026 10,000 shares Open-market sale of Xos, Inc. common stock by a director

Weighted average sale price September 2, 2026 $3.02 per share Prices ranged from $3.02 to $3.04

Shares sold September 4, 2026 5,000 shares Open-market sale of Xos, Inc. common stock by a director

Sale price September 4, 2026 $3.00 per share Open-market sale price for 5,000 shares

Unvested RSUs included in holdings 60,584 RSUs Unvested restricted stock units included in post-transaction holdings

Total shares sold in reported transactions 15,000 shares Sum of sales on September 2 and September 4, 2026

Key Terms

Restricted Stock Units, weighted average sales price, Rule 10b5-1

3 terms

Restricted Stock Units financial

"Includes 60,584 unvested RSUs."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

weighted average sales price financial

"Represents weighted average sales price."

Rule 10b5-1 regulatory

"No Rule 10b5-1 trading plan is reported for these transactions."

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.

FAQ

What insider transactions did XOS director Dietmar Ostermann report?

He reported two sales of Xos, Inc. common stock: 10,000 shares on September 2, 2026 at a weighted average price of $3.02, and 5,000 shares on September 4, 2026 at $3.00 per share.

How many XOS shares did the director sell in total?

Dietmar Ostermann sold a total of 15,000 shares of Xos, Inc. common stock across the reported transactions on September 2 and September 4, 2026.

At what prices were the recent XOS insider sales executed?

On September 2, 2026, 10,000 shares were sold at a weighted average price of $3.02, with individual sale prices ranging from $3.02 to $3.04. On September 4, 2026, 5,000 shares were sold at $3.00 per share.

Were the XOS insider sales under a Rule 10b5-1 trading plan?

No. The filing indicates that the Rule 10b5-1 checkbox is not marked, so the reported sales were not affirmed as being made under a Rule 10b5-1 trading plan.

What XOS equity awards does the director still hold after these sales?

The director’s reported holdings after these transactions include 60,584 unvested RSUs (restricted stock units). The filing does not state his total share count after the sales.

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

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Available on EDGAR 09/04/2026 - 05:43 PM Accepted by SEC EDGAR 09/04/2026 - 05:42 PM 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).

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^*

OSTERMANN DIETMAR

(Last) (First) (Middle)

C/O XOS, INC.

3550 TYBURN STREET, UNIT 100

(Street)

LOS ANGELES CALIFORNIA 90065

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Xos, Inc. [ XOS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2026

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	09/02/2026		S		10,000	D	$3.022(1)	95,226(2)	D
Common Stock	09/04/2026		S		5,000	D	$3	90,226(2)	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. Represents weighted average sales price. The shares were sold at prices ranging from $3.02 to $3.04. The Reporting Person will provide upon request, to the SEC, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.

2. Includes 60,584 unvested RSUs.

	/s/ David M. Zlotchew, Attorney-in-Fact for Dietmar Ostermann	09/04/2026
	** 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)