Joseph John Corso - 05 May 2026 Form 4 Insider Report for NLIGHT, INC. (LASR)

Reporting relationship: Chief Financial Officer
Issuer ticker: LASR
Reported as of: 05 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 07 May 2026, 19:41:45 UTC
Prior SEC filing: 09 Mar 2026
Next SEC filing: 19 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Julie Dimmick, as attorney-in-fact

Key filing fact

Joseph John Corso filed Form 4 for NLIGHT, INC. (LASR) on 07 May 2026.

Key facts

This page summarizes Joseph John Corso's Form 4 filing for NLIGHT, INC. (LASR).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 07 May 2026, 19:41.

Change

Previous filing in this sequence was filed on 09 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001914846 Primary reporting owner

Corso Joseph John

Relationship: Chief Financial Officer
Address: 4637 NW 18TH AVENUE, CAMAS
Signature: /s/ Julie Dimmick, as attorney-in-fact
Signature date: 07 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LASR transaction

Common Stock

Award

Transaction value
Shares: +100,000
Change %: +59%
Price: $0.000000^*
Shares after: 270,896
Date: 05 May 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Represents an equal number of restricted stock units ("RSUs"). Each RSU represents the right to receive a share of the Issuer's common stock on the date it vests. These RSUs were granted subject to performance- and service-based vesting requirements. On May 5, 2026, the Compensation Committee of the Issuer's Board of Directors certified the level of achievement of the performance-based conditions. As a result, one hundred percent (100%) of the RSUs will vest on May 14, 2026, subject to continued service with the Issuer through such date.

Footnote F2

Includes common stock owned and unvested restricted stock units.