144 0001680612 XXXXXXXX LIVE 0001420520 Atomera, Inc. 001-37850 750 University Avenue, Suite 280 Los Gatos CA 95032 408-442-5248 Francis Laurencio Officer Common Morgan Stanley Smith Barney LLC

1 New York Plaza 8th Floor New York NY 10004

51480 138013.20 30703865 06/03/2025 NASDAQ Common 02/23/2023 Restricted Stock Issuer N 6480 02/23/2023 Not applicable Common 06/03/2025 Stock options Issuer N 45000 06/03/2025 Not applicable Y 06/03/2025 /s/ Francis Laurencio