XOS

SEC source: 0001819493-25-000012 · wk-form4_1736909055.xml · nonDerivative · entry 1

Jackson Alice K · CIK 0001739230 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,308

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement and were issued to the Reporting Person in lieu of their cash retainer for the director service in Q4 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 28,694 unvested RSUs.

SEC source: 0001819493-25-000008 · wk-form4_1736908929.xml · nonDerivative · entry 1

Mattson George N · CIK 0001559238 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,204

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement and were issued to the Reporting Person in lieu of their cash retainer for the director service in Q4 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 28,694 unvested RSUs.

SEC source: 0001819493-25-000006 · wk-form4_1736908869.xml · nonDerivative · entry 1

Romero Christen T · CIK 0001909055 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 206,001

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 190,725 unvested RSUs.

SEC source: 0001819493-25-000004 · wk-form4_1736908814.xml · nonDerivative · entry 1

Pogosyan Liana · CIK 0001979040 · Acting Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,502

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 61,426 unvested RSUs.

SEC source: 0001819493-25-000014 · wk-form4_1736950039.xml · nonDerivative · entry 1

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,166,956

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 331,823 unvested RSUs.

SEC source: 0001819493-25-000029 · wk-form4a_1740604946.xml · nonDerivative · entry 1

RAPP EDWARD J · CIK 0001171780 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,509

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement and were issued to the Reporting Person in lieu of their cash retainer for the director service in Q4 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 28,694 unvested RSUs.

SEC source: 0001819493-25-000027 · wk-form4a_1740604812.xml · nonDerivative · entry 1

Mattson George N · CIK 0001559238 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,922

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement and were issued to the Reporting Person in lieu of their cash retainer for the director service in Q4 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 28,694 unvested RSUs.

SEC source: 0001819493-24-000202 · wk-form4_1734103901.xml · nonDerivative · entry 2

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,170,762

F3 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 341,084 unvested RSUs.

SEC source: 0001819493-24-000202 · wk-form4_1734103901.xml · nonDerivative · entry 1

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,174,068

F1 · shares: The Restricted Stock Unit ("RSU") Award shall vest in six approximately equal installments on each of the six Monthly Vesting Dates starting with December 10, 2024 provided that the Reporting Person has not accepted a Salary Increase prior to such Monthly Vesting Date. "Monthly Vesting Date" means the 10th day of each calendar month. "Salary Increase" means the Reporting Person accepting any amount of salary from the Issuer above the rate that was in effect on October 28, 2024. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of continuous service, as described in Section 6(l) of the Global RSU Award Agreement.

F2 · balance_after: Includes 341,084 unvested RSUs.

SEC source: 0001819493-24-000201 · wk-form4_1734103875.xml · nonDerivative · entry 2

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 517,756

F3 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 365,275 unvested RSUs.

SEC source: 0001819493-24-000201 · wk-form4_1734103875.xml · nonDerivative · entry 1

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 521,335

F1 · shares: The Restricted Stock Unit ("RSU") Award shall vest in six approximately equal installments on each of the six Monthly Vesting Dates starting with December 10, 2024 provided that the Reporting Person has not accepted a Salary Increase prior to such Monthly Vesting Date. "Monthly Vesting Date" means the 10th day of each calendar month. "Salary Increase" means the Reporting Person accepting any amount of salary from the Issuer above the rate that was in effect on October 28, 2024. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of continuous service, as described in Section 6(l) of the Global RSU Award Agreement.

F2 · balance_after: Includes 365,275 unvested RSUs.

SEC source: 0001819493-24-000204 · wk-form4_1734103953.xml · nonDerivative · entry 1

Romero Christen T · CIK 0001909055 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 206,746

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 192,223 unvested RSUs.

SEC source: 0001819493-24-000203 · wk-form4_1734103928.xml · nonDerivative · entry 2

Pogosyan Liana · CIK 0001979040 · Acting Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,532

F3 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F4 · balance_after: Includes 61,498 unvested RSUs.

SEC source: 0001819493-24-000203 · wk-form4_1734103928.xml · nonDerivative · entry 1

Pogosyan Liana · CIK 0001979040 · Acting Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,570

F1 · price: This sales price reflects a weighted average of multiple prices ranging from $3.79 to $3.975. Full information regarding the number of shares sold at each price will be provided to the Securities and Exchange Commission staff, the issuer or any security holder, upon request.

F2 · balance_after: Comprises unvested RSUs.

SEC source: 0001819493-24-000196 · wk-form4_1733259955.xml · nonDerivative · entry 1

Romero Christen T · CIK 0001909055 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 207,642

F1 · price: This sales price reflects a weighted average of multiple prices ranging from $3.85 to $4.21. Full information regarding the number of shares sold at each price will be provided to the Securities and Exchange Commission staff, the issuer or any security holder, upon request.

F2 · balance_after: Includes 194,241 unvested RSUs.

SEC source: 0001819493-24-000183 · wk-form4_1731461339.xml · nonDerivative · entry 1

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,133,456

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 309,734 unvested RSUs.

SEC source: 0001819493-24-000180 · wk-form4_1731461203.xml · nonDerivative · entry 1

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 475,308

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 329,276 unvested RSUs.

SEC source: 0001819493-24-000186 · wk-form4_1731461474.xml · nonDerivative · entry 1

Romero Christen T · CIK 0001909055 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 227,642

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 194,241 unvested RSUs.

SEC source: 0001819493-24-000184 · wk-form4_1731461367.xml · nonDerivative · entry 1

Pogosyan Liana · CIK 0001979040 · Acting Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,988

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 61,570 unvested RSUs.

SEC source: 0001819493-24-000168 · wk-form4_1729089808.xml · nonDerivative · entry 1

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,134,030

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 312,228 unvested RSUs.

SEC source: 0001819493-24-000166 · wk-form4_1729089754.xml · nonDerivative · entry 1

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 475,850

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 331,633 unvested RSUs.

SEC source: 0001819493-24-000172 · wk-form4_1729089943.xml · nonDerivative · entry 1

Romero Christen T · CIK 0001909055 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 228,539

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 196,260 unvested RSUs.

SEC source: 0001819493-24-000170 · wk-form4_1729089858.xml · nonDerivative · entry 1

Pogosyan Liana · CIK 0001979040 · Acting Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,026

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 61,642 unvested RSUs.

SEC source: 0001819493-24-000206 · wk-form4_1734466648.xml · nonDerivative · entry 1

RAPP EDWARD J · CIK 0001171780 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,034

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement and were issued to the director in lieu of their cash retainer for the director's service in Q3 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 28,694 unvested RSUs.

SEC source: 0001819493-24-000208 · wk-form4_1734466719.xml · nonDerivative · entry 1

Mattson George N · CIK 0001559238 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,341

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement and were issued to the director in lieu of their cash retainer for the director's service in Q3 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 28,694 unvested RSUs.

SEC source: 0001819493-24-000160 · wk-form4_1726192375.xml · nonDerivative · entry 1

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,134,921

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 314,722 unvested RSUs.

SEC source: 0001819493-24-000158 · wk-form4_1726192286.xml · nonDerivative · entry 1

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 476,692

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 333,991 unvested RSUs.

SEC source: 0001819493-24-000164 · wk-form4_1726192472.xml · nonDerivative · entry 1

Romero Christen T · CIK 0001909055 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 229,437

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 198,280 unvested RSUs.

SEC source: 0001819493-24-000162 · wk-form4_1726192425.xml · nonDerivative · entry 1

Pogosyan Liana · CIK 0001979040 · Acting Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,064

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 61,714 unvested RSUs.

SEC source: 0001819493-24-000152 · wk-form4_1723597652.xml · nonDerivative · entry 2

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,136,501

F2 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F3 · balance_after: Includes 319,145 unvested RSUs.

SEC source: 0001819493-24-000152 · wk-form4_1723597652.xml · nonDerivative · entry 1

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,138,398

F1 · shares: Approximately 33% of the Restricted Stock Unit ("RSU") Award shall vest on April 10, 2025 (the "Initial Vesting Date"), and the remainder of the RSU Award shall vest in twenty-four (24) approximately equal installments on each Monthly Vesting Date immediately following the Initial Vesting Date. "Monthly Vesting Date" means the 10th day of each month. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of continuous service, as described in Section 6(l) of the Global RSU Award Agreement.

SEC source: 0001819493-24-000154 · wk-form4_1723597698.xml · nonDerivative · entry 2

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 478,223

F2 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F3 · balance_after: Includes 338,278 unvested RSUs.

SEC source: 0001819493-24-000154 · wk-form4_1723597698.xml · nonDerivative · entry 1

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 480,054

F1 · shares: Approximately 33% of the Restricted Stock Unit ("RSU") Award shall vest on April 10, 2025 (the "Initial Vesting Date"), and the remainder of the RSU Award shall vest in twenty-four (24) approximately equal installments on each Monthly Vesting Date immediately following the Initial Vesting Date. "Monthly Vesting Date" means the 10th day of each month. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of continuous service, as described in Section 6(l) of the Global RSU Award Agreement.

SEC source: 0001819493-24-000150 · wk-form4_1723597582.xml · nonDerivative · entry 2

Pogosyan Liana · CIK 0001979040 · Acting Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,357

F2 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F3 · balance_after: Includes 62,269 unvested RSUs.

SEC source: 0001819493-24-000150 · wk-form4_1723597582.xml · nonDerivative · entry 1

Pogosyan Liana · CIK 0001979040 · Acting Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,650

F1 · shares: Approximately 33% of the Restricted Stock Unit ("RSU") Award shall vest on April 10, 2025 (the "Initial Vesting Date"), and the remainder of the RSU Award shall vest in twenty-four (24) approximately equal installments on each Monthly Vesting Date immediately following the Initial Vesting Date. "Monthly Vesting Date" means the 10th day of each month. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of continuous service, as described in Section 6(l) of the Global RSU Award Agreement.

SEC source: 0001819493-24-000148 · wk-form4_1723597519.xml · nonDerivative · entry 2

Romero Christen T · CIK 0001909055 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 230,550

F2 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F3 · balance_after: Includes 200,783 unvested RSUs.

SEC source: 0001819493-24-000148 · wk-form4_1723597519.xml · nonDerivative · entry 1

Romero Christen T · CIK 0001909055 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 231,662

F1 · shares: Approximately 33% of the Restricted Stock Unit ("RSU") Award shall vest on April 10, 2025 (the "Initial Vesting Date"), and the remainder of the RSU Award shall vest in twenty-four (24) approximately equal installments on each Monthly Vesting Date immediately following the Initial Vesting Date. "Monthly Vesting Date" means the 10th day of each month. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of continuous service, as described in Section 6(l) of the Global RSU Award Agreement.

SEC source: 0001819493-24-000176 · wk-form4a_1731100257.xml · nonDerivative · entry 2

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,136,818

F2 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F3 · balance_after: Includes 319,145 unvested RSUs.

SEC source: 0001819493-24-000176 · wk-form4a_1731100257.xml · nonDerivative · entry 1

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,138,398

F1 · shares: Approximately 33% of the Restricted Stock Unit ("RSU") Award shall vest on April 10, 2025 (the "Initial Vesting Date"), and the remainder of the RSU Award shall vest in twenty-four (24) approximately equal installments on each Monthly Vesting Date immediately following the Initial Vesting Date. "Monthly Vesting Date" means the 10th day of each month. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of continuous service, as described in Section 6(l) of the Global RSU Award Agreement.

SEC source: 0001819493-24-000174 · wk-form4a_1731100181.xml · nonDerivative · entry 2

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 478,523

F2 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported RSU Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F3 · balance_after: Includes 338,278 unvested RSUs.

SEC source: 0001819493-24-000174 · wk-form4a_1731100181.xml · nonDerivative · entry 1

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 480,054

F1 · shares: Approximately 33% of the Restricted Stock Unit ("RSU") Award shall vest on April 10, 2025 (the "Initial Vesting Date"), and the remainder of the RSU Award shall vest in twenty-four (24) approximately equal installments on each Monthly Vesting Date immediately following the Initial Vesting Date. "Monthly Vesting Date" means the 10th day of each month. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of continuous service, as described in Section 6(l) of the Global RSU Award Agreement.

SEC source: 0001819493-24-000115 · wk-form4_1720830081.xml · nonDerivative · entry 2

RAPP EDWARD J · CIK 0001171780 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,969

F3 · shares: Represents RSUs issued to the director in lieu of their cash retainer for the director's service in Q2 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 29,330 unvested RSUs.

SEC source: 0001819493-24-000115 · wk-form4_1720830081.xml · nonDerivative · entry 1

RAPP EDWARD J · CIK 0001171780 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,252

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs vest on the earlier of (i) the first anniversary of the Grant date and (ii) the day of the Company's 2025 Annual Meeting, subject to the Reporting Person's continuous service with Xos, Inc. through the vesting date.

F2 · balance_after: Includes 29,330 unvested RSUs.

SEC source: 0001819493-24-000127 · wk-form4_1720830837.xml · nonDerivative · entry 1

OSTERMANN DIETMAR · CIK 0001179705 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,045

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs vest on the earlier of (i) the first anniversary of the Grant date and (ii) the day of the Company's 2025 Annual Meeting, subject to the Reporting Person's continuous service with Xos, Inc. through the vesting date.

F2 · balance_after: Includes 28,694 unvested RSUs.

SEC source: 0001819493-24-000129 · wk-form4_1720830944.xml · nonDerivative · entry 1

Sordoni Giordano · CIK 0001877937 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 897,172

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 82,342 unvested RSUs.

SEC source: 0001819493-24-000131 · wk-form4_1720831052.xml · nonDerivative · entry 1

Semler Dakota · CIK 0001877933 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 217,110

F1 · shares: Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations in connection with the vesting of the Reporting Person's previously reported Restricted Stock Unit ("RSU") Award. Each RSU represents a contingent right to receive one share of common stock upon settlement.

F2 · balance_after: Includes 79,621 unvested RSUs.

SEC source: 0001819493-24-000119 · wk-form4_1720830404.xml · nonDerivative · entry 2

Jackson Alice K · CIK 0001739230 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,571

F3 · shares: Represents RSUs issued to the director in lieu of their cash retainer for the director's service in Q2 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 29,672 unvested RSUs.

SEC source: 0001819493-24-000119 · wk-form4_1720830404.xml · nonDerivative · entry 1

Jackson Alice K · CIK 0001739230 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,213

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs vest on the earlier of (i) the first anniversary of the Grant date and (ii) the day of the Company's 2025 Annual Meeting, subject to the Reporting Person's continuous service with Xos, Inc. through the vesting date.

F2 · balance_after: Includes 29,672 unvested RSUs.

SEC source: 0001819493-24-000123 · wk-form4_1720830641.xml · nonDerivative · entry 1

Ingargiola Luisa · CIK 0001447277 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,467

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs vest on the earlier of (i) the first anniversary of the Grant date and (ii) the day of the Company's 2025 Annual Meeting, subject to the Reporting Person's continuous service with Xos, Inc. through the vesting date.

F2 · balance_after: Includes 28,694 unvested RSUs.

SEC source: 0001819493-24-000117 · wk-form4_1720830324.xml · nonDerivative · entry 2

Mattson George N · CIK 0001559238 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,478

F3 · shares: Represents RSUs issued to the director in lieu of their cash retainer for the director's service in Q2 2024. The RSUs reported vested immediately on the date of grant.

F2 · balance_after: Includes 29,330 unvested RSUs.