SEC Form 4 reporting owner

Corso Joseph John

Corso Joseph John has filed 17 Form 4 transactions reported between December 3, 2025 and September 4, 2026, as Chief Financial Officer of NLIGHT, INC..

Name as filed: Corso Joseph John

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$11.6M

16 lines

Companies

with Form 4 filings

Latest transaction

Sep 4, 2026

transaction date

Roles and reported holdings

LASRNLIGHT, INC.
Dec 3, 2025 – Sep 4, 2026
Chief Financial Officer
Held directly162,200 sh as of Sep 4, 2026 · Form 4
24 months: $11.6M sold

Transaction history

All 17 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 4, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	3,524	$41.49	$146K@ $41.49	162,200	Form 4
Sep 3, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	4,191	$40.69	$171K@ $40.69	165,724	Form 4
Jun 4, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	3,817	$72.90	$278K@ $72.90	169,915	Form 4
Jun 3, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	3,840	$77.99	$299K@ $77.99	173,732	Form 4
May 20, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	1,537	$71.36	$110K@ $71.36	177,572	Form 4
May 20, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	19,090	$70.77	$1.4M@ $70.77	179,109	Form 4
May 20, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	12,946	$69.98	$906K@ $69.98	198,199	Form 4
May 20, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	1,903	$68.81	$131K@ $68.81	211,145	Form 4
May 19, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	20,243	$68.48	$1.4M@ $68.48	213,048	Form 4
May 18, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	19,575	$70.82	$1.4M@ $70.82	233,291	Form 4
May 15, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	18,445	$75.16	$1.4M@ $75.16	252,451	Form 4
May 5, 2026	LASRChief Financial Officer	Grant or awardCode A · direct	100,000	—	—	270,896	Form 4
Mar 6, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	12,290	$60.39	$742K@ $60.39	170,896	Form 4
Mar 5, 2026	LASRChief Financial Officer	Open-market saleCode S · direct	13,038	$61.96	$808K@ $61.96	183,186	Form 4
Dec 15, 2025	LASRChief Financial Officer	Open-market saleCode S · direct	2,075	$36.86	$76K@ $36.86	196,224	Form 4
Dec 15, 2025	LASRChief Financial Officer	Open-market saleCode S · direct	64,000	$36.30	$2.3M@ $36.30	198,299	Form 4
Dec 3, 2025	LASRChief Financial Officer	Open-market saleCode S · direct	4,127	$33.78	$139K@ $33.78	262,299	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.