NLIGHT, INC.

Securities Trading Plans of Directors and Executive Officers

During our last fiscal quarter, the following director and officer, as defined in Rule 16a-1(f), adopted a “Rule 10b5-1 trading arrangement” as defined in Regulation S-K Item 408, as follows:

On December 8, 2025, James Nias, our Chief Accounting Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 1,808 shares of our common stock and the shares of our common stock to be acquired through the ESPP during 2026. This trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until December 11, 2026, or earlier if all transactions under the trading arrangement are completed.

On December 11, 2025, Raymond Link, a member of our Board of Directors, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 25,404 shares of our common stock. This trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until March 10, 2027, or earlier if all transactions under the trading arrangement are completed.

During our last fiscal quarter ended December 31, 2025, no other director or officer, as defined in Rule 16a-1(f), adopted orterminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” each as defined in Regulation S-K Item 408.