nLIGHT officer plans $171K stock sale under Rule 144

Rhea-AI Filing Summary

NLIGHT, INC. (LASR) reports that officer Joseph J. Corso has filed a notice under Rule 144 to sell up to 4,191 shares of LASR common stock through Fidelity Brokerage Services LLC. These shares were acquired via restricted stock vesting on September 1, 2026 as compensation.

The filing lists an aggregate market value of approximately $170,527.60 for the 4,191 shares as of September 3, 2026. Shares of LASR common stock outstanding were 57,690,197 as of that date; this is a baseline figure, not the amount being sold. Corso also sold 3,840 and 3,817 shares in June 2026 for about $299,467.00 and $278,259.30, respectively. The remarks state that the sale includes shares needed to cover tax obligations from a vested equity award.

Key Figures

Shares proposed for sale: 4,191 shares Aggregate market value of proposed sale: $170,527.60 Shares outstanding: 57,690,197 shares +4 more

7 metrics

Shares proposed for sale 4,191 shares Common stock under Rule 144 notice by Joseph J. Corso

Aggregate market value of proposed sale $170,527.60 4,191 shares of LASR common stock as of September 3, 2026

Shares outstanding 57,690,197 shares LASR common stock outstanding as of September 3, 2026

Shares sold June 3, 2026 3,840 shares Common stock sold by Joseph J. Corso in prior 3 months

Proceeds June 3, 2026 sale $299,467.00 Sale of 3,840 LASR shares

Shares sold June 4, 2026 3,817 shares Common stock sold by Joseph J. Corso in prior 3 months

Proceeds June 4, 2026 sale $278,259.30 Sale of 3,817 LASR shares

Key Terms

Rule 144, Restricted Stock Vesting, vested equity award distribution

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Common | 09/01/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

vested equity award distribution financial

"resulting from the settlement of a vested equity award distribution."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the NLIGHT, INC. (LASR) Form 144 filed by Joseph J. Corso disclose?

It discloses that officer Joseph J. Corso plans to sell up to 4,191 shares of LASR common stock under Rule 144, representing stock acquired through restricted stock vesting on September 1, 2026, with an aggregate market value of about $170,527.60.

How many LASR shares is Joseph J. Corso proposing to sell?

The notice states that Joseph J. Corso may sell up to 4,191 shares of NLIGHT, INC. common stock. These shares are held at Fidelity Brokerage Services LLC and relate to a vested equity award that settled on September 1, 2026.

What is the estimated market value of the LASR shares in this Form 144?

The filing lists an aggregate market value of approximately $170,527.60 for the 4,191 shares proposed to be sold as of September 3, 2026. This figure reflects the market value referenced for the planned Rule 144 sale.

How many NLIGHT, INC. (LASR) shares are outstanding according to this notice?

NLIGHT, INC. reports 57,690,197 shares of common stock outstanding as of September 3, 2026. This number describes total shares outstanding and not the quantity involved in the Rule 144 sale.

What prior LASR stock sales by Joseph J. Corso are reported in the past three months?

The filing reports two prior sales: 3,840 shares of LASR common stock sold on June 3, 2026 for about $299,467.00, and 3,817 shares sold on June 4, 2026 for about $278,259.30.

Why does the Form 144 say some LASR shares are being sold by Joseph J. Corso?

The remarks state that the sale includes an amount of shares necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution, indicating part of the sale is tied to tax withholding needs.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/03/2026 - 04:03 PM EDT Accepted by SEC EDGAR 09/03/2026 - 04:02 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001914846
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	NLIGHT, INC.
SEC File Number	001-38462
Address of Issuer	4637 NW 18TH AVENUE CAMAS WASHINGTON 98607
Phone	360-566-4460
Name of Person for Whose Account the Securities are To Be Sold	Corso Joseph John
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	4191	170527.60	57690197	09/03/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/01/2026	Restricted Stock Vesting	Issuer			4191	09/01/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Joseph J. Corso 4637 NW 18th Avenue Camas WA 98607	Common	06/03/2026	3840	299467.00
Joseph J. Corso 4637 NW 18th Avenue Camas WA 98607	Common	06/04/2026	3817	278259.30

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	09/03/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Margaret Campbell, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Joseph J. Corso
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)