Xos director sells 10,000 shares at about $3.49

Xos, Inc. (XOS) director Dietmar Ostermann reported a sale of 10,000 shares of common stock on 2026-08-20 in an open-market or private transaction.

Rhea-AI Filing Summary

Xos, Inc. (XOS) director Dietmar Ostermann reported a sale of 10,000 shares of common stock on 2026-08-20 in an open-market or private transaction. The weighted average sale price was about $3.49 per share, with prices ranging from $3.49 to $3.50. Following this transaction, he directly holds 105,226 shares, which include 60,584 unvested RSUs.

Insider Trade Summary

Net Seller: 10,000 shares

Net Sell 1 txn

Insider OSTERMANN DIETMAR

Role Director

Sold 10,000 shs ($35K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	10,000	$3.4913	$35K

Holdings After Transaction: Common Stock — 105,226 shares (Direct)

Footnotes (2)

1. F1. Represents weighted average sales price. The shares were sold at prices ranging from $3.49 to $3.50. 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: 10,000 shares Weighted average sale price: $3.4913 per share Shares owned after transaction: 105,226 shares +1 more

4 metrics

Shares sold 10,000 shares Sale of Xos, Inc. common stock reported on 2026-08-20

Weighted average sale price $3.4913 per share Common stock sale on 2026-08-20; prices ranged from $3.49 to $3.50

Shares owned after transaction 105,226 shares Direct ownership of Xos, Inc. common stock following the reported sale

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

Key Terms

weighted average sales price, RSUs, unvested RSUs

3 terms

weighted average sales price financial

"Represents weighted average sales price. The shares were sold at prices"

RSUs financial

"Includes 60,584 unvested RSUs."

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

unvested RSUs financial

"Includes 60,584 unvested RSUs."

FAQ

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

What insider transaction did XOS director Dietmar Ostermann report?

He reported a sale of 10,000 shares of Xos, Inc. common stock on 2026-08-20 in an open-market or private transaction, at a weighted average price of $3.49 per share, with individual sale prices ranging from $3.49 to $3.50.

At what price did Dietmar Ostermann sell XOS shares?

He sold the 10,000 XOS shares at a weighted average price of $3.4913 per share. The footnote states the shares were sold at prices ranging from $3.49 to $3.50 per share, and detailed breakdowns by price level are available upon request.

How many XOS shares does Dietmar Ostermann own after this Form 4 transaction?

After the reported sale, Dietmar Ostermann directly owns 105,226 shares of Xos, Inc. common stock. A footnote clarifies that this total includes 60,584 unvested RSUs that remain subject to vesting conditions.

Does the Form 4 indicate any Rule 10b5-1 trading plan for the XOS insider?

The filing indicates the Rule 10b5-1 checkbox is not affirmed (aff_10b5_one is false), and the footnotes do not describe any Rule 10b5-1 trading plan, so the sale is not reported as having been made under such a plan.

What portion of Dietmar Ostermann’s post-transaction XOS holdings are unvested RSUs?

Of his 105,226 total shares reported after the transaction, 60,584 are unvested RSUs. These restricted stock units are part of his equity compensation and remain subject to vesting requirements as described in the footnote.

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

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Available on EDGAR 08/24/2026 - 05:31 PM EDT Accepted by SEC EDGAR 08/24/2026 - 05:30 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).

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)
08/20/2026

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	08/20/2026		S		10,000	D	$3.4913(1)	105,226(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 $3.49 to $3.50. 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	08/24/2026
	** 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)