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NLIGHT (LASR) CFO pre-planned share sale covers RSU tax obligations

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

NLIGHT, INC. Chief Financial Officer Joseph John Corso reported open-market sales of 7,657 shares of common stock, largely tied to equity compensation taxes. He sold 3,840 shares at $77.99 on June 3 and 3,817 shares at $72.90 on June 4. One of the reported sales was executed to cover tax withholding obligations from vesting restricted stock units under a mandated “sell to cover” arrangement. The filing states the sales were carried out under a Rule 10b5-1 trading plan adopted on September 15, 2025, and Corso continues to directly hold 169,915 shares, including unvested restricted stock units.

Positive

  • None.

Negative

  • None.

Insights

CFO’s 7,657-share sale is mainly tax-related and pre-planned.

The reporting person, NLIGHT’s CFO Joseph John Corso, sold 7,657 common shares in two open-market transactions at $77.99 and $72.90 per share. A footnote explains that one of these sales was used to cover tax withholding obligations from vesting restricted stock units via a mandated “sell to cover” mechanism.

The filing further notes that these sales were effected under a Rule 10b5-1 trading plan adopted on September 15, 2025, indicating they were pre-scheduled rather than opportunistic. After the transactions, Corso directly holds 169,915 shares, which includes unvested restricted stock units, so he retains a significant ongoing equity stake.

Because the sale size is modest relative to his reported holdings and is largely tied to tax and pre-planned activity, this Form 4 generally signals routine equity-compensation administration rather than a change in management’s view of the company. Future company filings may provide additional context as more restricted stock units vest over time.

Insider Corso Joseph John
Role Chief Financial Officer
Sold 7,657 shs ($578K)
Type Security Shares Price Value
Sale Common Stock 3,817 $72.90 $278K
Sale Common Stock 3,840 $77.99 $299K
Holdings After Transaction: Common Stock — 169,915 shares (Direct, null)
Footnotes (1)
  1. This reported sale 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. The reported transaction involves sale transactions from $77.99 to $77.99 per share. The weighted average price per share was $77.99. 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. Includes common stock owned and unvested restricted stock units. These reported sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025. The reported transaction involves sale transactions from $72.90 to $72.90 per share. The weighted average price per share was $72.90. 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.
Total shares sold 7,657 shares Open-market sales reported in this Form 4
Shares sold on June 3, 2026 3,840 shares at $77.99/share Open-market sale of common stock
Shares sold on June 4, 2026 3,817 shares at $72.90/share Open-market sale of common stock
Post-transaction holdings 169,915 shares Direct holdings after reported sales, including unvested RSUs
Net share change -7,657 shares Net sell direction across reported transactions
Rule 10b5-1 plan adoption date September 15, 2025 Plan governing the reported sales
restricted stock units financial
"tax withholding obligations in connection with the vesting and settlement of restricted stock units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
sell to cover financial
"tax withholding obligations to be funded by a "sell to cover" transaction"
Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.
Rule 10b5-1 trading plan regulatory
"These reported sales were effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price per share financial
"The weighted average price per share was $77.99."
open market or private transaction financial
"Sale in open market or private transaction"
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Financial Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/03/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock06/03/2026S3,840(1)D$77.99(2)173,732(3)D
Common Stock06/04/2026S3,817(4)D$72.9(5)169,915(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. This reported sale 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. The reported transaction involves sale transactions from $77.99 to $77.99 per share. The weighted average price per share was $77.99. 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. These reported sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025.
5. The reported transaction involves sale transactions from $72.90 to $72.90 per share. The weighted average price per share was $72.90. 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-fact06/05/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did NLIGHT (LASR) report for its CFO?

NLIGHT reported that CFO Joseph John Corso sold 7,657 shares of common stock in two open-market transactions. These trades were largely related to equity compensation tax withholding and were executed under a pre-arranged Rule 10b5-1 trading plan adopted in September 2025.

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

Joseph John Corso sold a total of 7,657 NLIGHT common shares. He sold 3,840 shares at a weighted average price of $77.99 per share and 3,817 shares at a weighted average price of $72.90 per share in separate transactions on consecutive days.

Why did the NLIGHT (LASR) CFO sell shares according to the Form 4?

One reported sale was made to cover tax withholding obligations from the vesting and settlement of restricted stock units. The company requires these taxes to be funded through a “sell to cover” transaction, so this portion of the sale was not a discretionary decision by the CFO.

Were the NLIGHT (LASR) CFO’s share sales under a Rule 10b5-1 plan?

Yes. The Form 4 footnotes state that the reported sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the CFO on September 15, 2025. Such plans pre-schedule trades, reducing the significance of transaction timing as a market signal.

How many NLIGHT (LASR) shares does the CFO hold after these transactions?

Following the reported sales, CFO Joseph John Corso directly holds 169,915 shares of NLIGHT common stock. This figure includes both common shares owned and unvested restricted stock units, indicating he continues to maintain a sizable equity position in the company.

Do these NLIGHT (LASR) insider sales indicate a bearish outlook from the CFO?

The filing emphasizes that a sale was mandated to cover tax withholding on vesting restricted stock units and that all reported sales were under a Rule 10b5-1 plan. Combined with Corso’s remaining 169,915 shares, this points to routine compensation-related activity rather than a clear negative signal.