X0609 4 2026-08-18 0001819493 Xos, Inc. XOS 0001873851 Bernstein Stuart N. false C/O XOS, INC. 3550 TYBURN STREET, UNIT 100 LOS ANGELES CA true false false false false Common Stock 2026-08-18 4 S false 30000 4.1945 D 112642 D Common Stock 4133 I See Footnote Represents weighted average sales price. The shares were sold at prices ranging from $4.125 to $4.39. 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 The securities are held by Bernstein Investment Partners LLC, of which the Reporting Person is the Managing Member. /s/ David M. Zlotchew, Attorney-in-Fact for Stuart Bernstein 2026-08-20