nLIGHT, Inc. (LASR) CFO reports planned insider stock sales in Form 4

Rhea-AI Filing Summary

nLIGHT, Inc. Chief Financial Officer reported selling company stock in an open market transaction. On 12/15/2025, the reporting person sold 64,000 shares of common stock at a weighted average price of $36.30 per share, in a series of trades between $35.77 and $36.76 per share, under a pre-arranged Rule 10b5-1 trading plan adopted on September 15, 2025. On the same date, the reporting person sold an additional 2,075 shares at a weighted average price of $36.86 per share, in trades between $36.77 and $37.15 per share. After these sales, the officer beneficially owns 196,224 shares of common stock, including unvested restricted stock units, held directly.

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).

X

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)
12/15/2025

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	12/15/2025		S		64,000(1)	D	$36.3(2)	198,299(3)	D
Common Stock	12/15/2025		S		2,075(1)	D	$36.86(4)	196,224(3)	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. This reported sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025.

2. The reported transaction involves sale transactions from $35.77 to $36.76 per share. The weighted average price per share was $36.30. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

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

4. The reported transaction involves sale transactions from $36.77 to $37.15 per share. The weighted average price per share was $36.86. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Julie Dimmick, as attorney-in-fact	12/17/2025
	** 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 transaction did nLIGHT (LASR) disclose in this Form 4?

The filing reports that nLIGHT, Inc.'s Chief Financial Officer sold shares of the company’s common stock in open market transactions on 12/15/2025.

How many nLIGHT (LASR) shares did the CFO sell and at what prices?

The CFO sold 64,000 shares at a weighted average price of $36.30 per share, in trades between $35.77 and $36.76, and 2,075 shares at a weighted average price of $36.86 per share, in trades between $36.77 and $37.15.

Was the nLIGHT (LASR) CFO’s stock sale under a Rule 10b5-1 trading plan?

Yes. The filing states the 64,000-share sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 15, 2025.

How many nLIGHT (LASR) shares does the CFO own after the reported transactions?

Following the reported sales, the reporting person beneficially owns 196,224 shares of nLIGHT common stock, which includes common stock and unvested restricted stock units, held directly.

What role does the reporting person hold at nLIGHT (LASR)?

The reporting person is an officer of nLIGHT, Inc., serving as the company’s Chief Financial Officer, as disclosed in the filing.

Can investors obtain detailed pricing for each nLIGHT (LASR) trade reported?

Yes. The filing notes the reporting person will provide, upon request to the SEC staff, the issuer, or a security holder, information on the number of shares sold at each separate price within the reported ranges.