May 22, 2026

‍

nLIGHT, Inc. (NASDAQ: LASR) disclosed that Chief Financial Officer Joseph John Corso sold approximately $3.9 million worth of company shares, according to a Form 4 filing with the U.S. Securities and Exchange Commission (SEC).
‍

The transactions included 20,243 shares sold on May 19 at $68.48 per share and 35,476 shares sold on May 20 at $70.40 per share. After the latest reported sale, Corso owned 177,572 shares.
‍

nLIGHT is a laser technology company that develops semiconductor and fiber laser products used across industrial, microfabrication, aerospace, defense, and medical markets.
‍

Large Insider Sales Require Context

‍

The sale exceeds the commonly watched insider-selling threshold for senior executives, where CFO or CEO sales above $2.5 million tend to draw greater investor attention.
‍

Unlike insider buying, insider selling can happen for many reasons, including diversification, tax planning, or scheduled trading plans. However, larger CFO sales can still prompt investors to review the timing, recent stock performance, and the size of the sale relative to remaining holdings.

‍

The Bigger Picture: Separating Routine Selling from Signal

‍

Understanding whether insider selling is routine or meaningful requires tracking patterns across executives and time.
‍

Platforms like LevelFields aggregate insider transactions and flag when activity exceeds key thresholds, helping investors identify when insider buying has historically aligned with meaningful stock movements alongside regulatory events, earnings trends, and buybacks, helping investors identify when leadership transitions have historically led to meaningful stock movements.