[Form 4] nLIGHT, Inc. Insider Trading Activity

Rhea-AI Filing Summary

nLIGHT, Inc. (LASR) Form 4: The company’s CFO, Joseph John Corso, reported three routine sales of common stock on 08/20/2025, 08/21/2025 and 08/22/2025 to satisfy tax withholding related to the vesting and settlement of restricted stock units. The reported transactions show dispositions of 8,894 shares at $25.67, 8,619 shares at $26.49, and 8,007 shares at $28.33. Following these sales the reporting person’s beneficial ownership declined to 328,028 shares, then 319,409 shares, and then 311,402 shares respectively; the filing notes these amounts include both vested common stock and unvested restricted stock units. The Form 4 was signed by an attorney-in-fact on behalf of the reporting person.

Insights

Financial Analyst

TL;DR Insider sales were routine "sell-to-cover" transactions tied to RSU vesting, not discretionary market sales.

The filing documents three consecutive small-volume dispositions by the CFO to satisfy tax withholding on vested restricted stock units. Prices ranged from $25.67 to $28.33 and the post-transaction beneficial ownership figures include unvested RSUs. There is no indication of additional open-market selling or a change in executive role. For investors, these transactions are administrative in nature and do not signal a material change in company operations or financial condition based on the information provided.

Corporate Governance Expert

TL;DR Transactions reflect issuer-mandated sell-to-cover tax withholding; governance disclosure appears standard and complete.

The Form 4 explicitly states the sales were mandated by the issuer’s election to satisfy tax obligations upon RSU vesting and were not discretionary. The reporting person is the CFO and the form was executed by an attorney-in-fact, consistent with standard practice. The disclosure includes amounts, prices, and a clear explanatory footnote. Based solely on this filing, there are no governance red flags or unexplained insider behavior.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Corso Joseph John

(Last) (First) (Middle)

4637 NW 18TH AVENUE

(Street)

CAMAS WA 98607

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NLIGHT, INC. [ LASR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/20/2025		S		8,894(1)	D	$25.67	328,028(2)	D
Common Stock	08/21/2025		S		8,619(1)	D	$26.49	319,409(2)	D
Common Stock	08/22/2025		S		8,007(1)	D	$28.33	311,402(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sale reported on this Form 4 represents shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

2. Includes common stock owned and unvested restricted stock units.

Remarks:

	/s/ Julie Dimmick, as attorney-in-fact	08/22/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did LASR report in this Form 4?

The CFO sold 8,894, 8,619, and 8,007 common shares on 08/20/2025, 08/21/2025, and 08/22/2025 respectively.

Why were the LASR shares sold by the reporting person?

The sales were sell-to-cover transactions to satisfy tax withholding obligations associated with the vesting and settlement of restricted stock units.

What prices were reported for the LASR share sales?

The reported sale prices were $25.67, $26.49, and $28.33 on the respective transaction dates.

How many LASR shares did the reporting person own after the transactions?

Beneficial ownership after the transactions was reported as 328,028, 319,409, and 311,402 shares respectively, which include unvested RSUs.

Does the Form 4 indicate discretionary selling by the CFO of LASR?

No. The filing states the sales were mandated by the issuer’s election for tax withholding and were not discretionary transactions by the reporting person.