144 0001434884 XXXXXXXX LIVE 0001758766 STEM, INC. 001-39455 100 CALIFORNIA STREET, 14TH FLOOR SAN FRANCISCO CA 94111 (415) 937-7836 Carrington John Eugene Officer Director Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

194166 358042.10 157773620 05/02/2024 NYSE Common 04/26/2024 Restricted Stock Vesting Issuer N 194166 04/26/2024 Compensation N John Carrington

100 California St. 14th Fl. San Francisco CA 94111

Common 02/27/2024 13863 37434.26 John Carrington

100 California St. 14th Fl. San Francisco CA 94111

Common 03/04/2024 9885 24469.33 John Carrington

100 California St. 14th Fl. San Francisco CA 94111

Common 03/08/2024 85038 186496.84 Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution. 05/02/2024 /s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for John Carrington