144 0001877937 XXXXXXXX LIVE 0001819493 Xos, Inc. 001-39598 3550 Tyburn Street Los Angeles CA 90065 (818) 316-1890 Giordano Sordoni Officer Common Stock UBS Financial Services Inc

1000 Harbor Blvd 3rd Floor Weehawken NJ 07086

144340 505190 14217852 08/20/2026 NASDAQ Common Stock 04/10/2024 RSU Issuer N 18231 04/10/2024 NA Common Stock 05/10/2024 RSU Issuer N 2843 05/10/2024 NA Common Stock 06/10/2024 RSU Issuer N 2843 06/10/2024 NA Common Stock 07/10/2024 RSU Issuer N 2843 07/10/2024 NA Common Stock 08/10/2024 RSU Issuer N 3629 08/10/2024 NA Common Stock 09/10/2024 RSU Issuer N 2843 09/10/2024 NA Common Stock 10/10/2024 RSU Issuer N 1603 10/10/2024 NA Common Stock 11/10/2024 RSU Issuer N 1603 11/10/2024 NA Common Stock 12/10/2024 RSU Issuer N 5956 12/10/2024 NA Common Stock 01/10/2025 RSU Issuer N 5455 01/10/2025 NA Common Stock 02/10/2025 RSU Issuer N 5456 02/10/2025 NA Common Stock 03/10/2025 RSU Issuer N 5455 03/10/2025 NA Common Stock 04/10/2025 RSU Issuer N 57620 04/10/2025 NA Common Stock 05/10/2025 RSU Issuer N 10251 05/10/2025 NA Common Stock 06/10/2025 RSU Issuer N 5903 06/10/2025 NA Common Stock 07/10/2025 RSU Issuer N 5903 07/10/2025 NA Common Stock 08/10/2025 RSU Issuer N 5903 08/10/2025 NA Y 08/20/2026 /s/Mijo Suric, for UBS Financial Services Inc, as attorney-in-fact for Giordano Sordoni