X0609 4 2026-07-15 0001819493 Xos, Inc. XOS 0001739230 Yake Alice false C/O XOS, INC. 3550 TYBURN STREET, UNIT 100 LOS ANGELES CA 90065 true false false false true Common Stock 2026-07-15 4 D false 2500 2.3042 D 157561 D Common Stock 2026-07-16 4 D false 2500 2.1657 D 155061 D Common Stock 2026-07-17 4 D false 2500 2.1481 D 152561 D The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 29, 2025. Represents weighted average sales price. The shares were sold at prices ranging from $2.23 to $2.40. 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. Includes 60,584 unvested RSUs. Represents weighted average sales price. The shares were sold at prices ranging from $2.12 to $2.32. 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. Represents weighted average sales price. The shares were sold at prices ranging from $2.11 to $2.18. 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. /s/ David M. Zlotchew, Attorney-in-Fact for Alice Yake 2026-07-17