144 0001738235 XXXXXXXX LIVE 0001124796 NLIGHT, INC. 001-38462 4637 NW 18TH AVENUE CAMAS WA 98607 360-566-4460 Keeney Scott H Officer Director Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

41373 3253717.16 56408709 05/28/2026 NASDAQ Common 05/15/2026 Restricted Stock Vesting Issuer N 29479 05/15/2026 Compensation Common 05/18/2026 Restricted Stock Vesting Issuer N 11894 05/18/2026 Compensation N Scott H. Keeney

4637 NW 18th Avenue Camas WA 98607

Common 03/05/2026 32239 1997596.15 Scott H. Keeney

4637 NW 18th Avenue Camas WA 98607

Common 03/06/2026 23656 1431848.20 Scott H. Keeney

4637 NW 18th Avenue Camas WA 98607

Common 03/09/2026 19096 1122762.29 Scott H. Keeney

4637 NW 18th Avenue Camas WA 98607

Common 05/15/2026 42584 3200400.52 Scott H. Keeney

4637 NW 18th Avenue Camas WA 98607

Common 05/18/2026 45191 3200385.95 Scott H. Keeney

4637 NW 18th Avenue Camas WA 98607

Common 05/19/2026 46735 3200384.76 Scott H. Keeney

4637 NW 18th Avenue Camas WA 98607

Common 05/20/2026 41373 2912609.02 Scott H. Keeney

4637 NW 18th Avenue Camas WA 98607

Common 05/21/2026 41373 3110918.89 05/28/2026 06/12/2025 /s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Scott H. Keeney