144/A 0001415889-25-003289 0001907020 XXXXXXXX LIVE 0001819142 SES AI CORP 001-39845 C/O SES AI CORPORATION 35 CABOT ROAD WOBURN MA 01801 401-340-9899 Jing Nealis Officer Class A Common Stock E-Trade

3 Edison Dr Alpharetta GA 30005

80992 94869.74 316703306 02/10/2025 NYSE Class A Common Stock 02/10/2025 Shares acquired upon vesting of a restricted stock unit award issued under the Issuer's equity incentive plan Issuer N 203529 02/09/2025 Compensation N Jing Nealis

35 Cabot Rd Woburn MA 01801

Class A Common Stock 12/26/2024 150000 106500 Jing Nealis

35 Cabot Rd Woburn MA 01801

Class A Common Stock 01/16/2025 50000 41495.00 Represents shares to be sold pursuant to automatic sell to cover transactions that do not represent a discretionary trade by the Reporting Person in order to cover tax obligations arising due to vesting of restricted stock units on February 9, 2025, pursuant to a Rule 10b5-1 instruction adopted by the Reporting Person on February 9, 2024. This Form 144/A is filed solely to reflect an increase in the number of shares sold and aggregate value thereof from the estimate reported on the initial Form 144. 02/11/2025 02/09/2024 /s/ Jing Nealis