X0609 4 2026-10-15 0 0001124796 NLIGHT, INC. LASR 0001247627 MOORE GEOFFREY false 4637 NW 18TH AVENUE CAMAS WA 98607 1 0 0 0 1 Common Stock 2026-10-15 4 S 0 4452 34.57 D 81265 D This reported sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 15, 2026. The reported transaction involves sale transactions from $34.57 to $34.57 per share. The weighted average price per share was $34.57. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price. Includes common stock owned and unvested restricted stock units. /s/ Joseph Corso, as attorney-in-fact 2026-10-19