nLIGHT CFO awarded 100,000 RSUs

Corso Joseph John reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Corso Joseph John reported acquisition or exercise transactions in this Form 4 filing.

NLIGHT, INC. Chief Financial Officer Joseph John Corso received a grant of 100,000 restricted stock units (RSUs) tied to performance and service conditions. Each RSU represents one share of common stock when it vests. The compensation committee certified the performance goals on May 5, 2026, and 100% of the RSUs are scheduled to vest on May 14, 2026, if he remains employed through that date. Following this award, he directly holds 270,896 shares of common stock, including unvested RSUs.

Insider Trade Summary

Grant/Award: 100,000 shares

Grant/Award 1 txn

Insider Corso Joseph John

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	100,000	$0.00	$0.00

Holdings After Transaction: Common Stock — 270,896 shares (Direct)

Footnotes (2)

1. 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.
2. F2. Includes common stock owned and unvested restricted stock units.

Key Figures

RSU grant size: 100,000 RSUs Grant price: $0.00 per share Vesting date: May 14, 2026 +1 more

4 metrics

RSU grant size 100,000 RSUs Grant/award on May 5, 2026, for CFO

Grant price $0.00 per share Equity compensation, not an open-market purchase

Vesting date May 14, 2026 All RSUs vest subject to continued service

Total holdings after grant 270,896 shares Direct ownership including unvested RSUs

Key Terms

restricted stock units (RSUs), performance- and service-based vesting requirements, Compensation Committee, certified the level of achievement, +1 more

5 terms

restricted stock units (RSUs) financial

"Represents an equal number of restricted stock units ("RSUs"). Each RSU represents the right to receive a share..."

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

performance- and service-based vesting requirements financial

"These RSUs were granted subject to performance- and service-based vesting requirements."

Compensation Committee financial

"On May 5, 2026, the Compensation Committee of the Issuer's Board of Directors certified the level..."

A compensation committee is a group within a company's leadership responsible for setting and reviewing how much top executives and employees are paid, including salaries, bonuses, and benefits. It matters to investors because fair and effective pay decisions can influence a company's performance, leadership motivation, and overall governance, helping ensure that the company’s management is aligned with shareholders’ interests.

certified the level of achievement financial

"the Compensation Committee ... certified the level of achievement of the performance-based conditions."

unvested restricted stock units financial

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

FAQ

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

What did NLIGHT (LASR) CFO Joseph Corso receive in this Form 4?

NLIGHT’s CFO Joseph John Corso received 100,000 restricted stock units (RSUs) as equity compensation. Each RSU converts into one share of common stock upon vesting, aligning his interests with shareholders through performance- and service-based incentives.

How are the 100,000 RSUs for NLIGHT (LASR) CFO structured?

The 100,000 RSUs are subject to both performance- and service-based vesting requirements. Performance conditions were certified on May 5, 2026, and all RSUs are set to vest on May 14, 2026, if Corso continues serving NLIGHT through that date.

When will the NLIGHT (LASR) CFO’s 100,000 RSUs vest?

All 100,000 RSUs are scheduled to vest on May 14, 2026, following certification of performance conditions on May 5, 2026. Vesting is contingent on the CFO’s continued service with NLIGHT through the vesting date.

What does the Form 4 say about NLIGHT (LASR) CFO’s total holdings?

After the RSU grant, the CFO directly holds 270,896 shares of NLIGHT common stock. This figure includes both currently owned common shares and unvested restricted stock units reported as part of his equity stake.

Did the NLIGHT (LASR) CFO buy shares in the open market?

No, the Form 4 shows a grant of 100,000 RSUs at a price of $0.00 per unit. This indicates stock-based compensation from NLIGHT, rather than an open-market purchase using personal funds.

What triggers vesting of NLIGHT (LASR) CFO’s performance-based RSUs?

Vesting requires both certified performance achievement and continued service. The compensation committee certified performance conditions on May 5, 2026, and the RSUs will vest on May 14, 2026, provided the CFO remains employed through that date.

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

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Accepted by SEC EDGAR 05/07/2026 - 07:41 PM Learn about SEC filing dates

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 WASHINGTON 98607

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/05/2026

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

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

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

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	05/05/2026		A		100,000(1)	A	$0	270,896(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. 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.

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

Remarks:

	/s/ Julie Dimmick, as attorney-in-fact	05/07/2026
	** 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.
* Form 4: SEC 1474 (03-26)