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SEALSQ Corp (NASDAQ: LAES) director exercises options and settles tax using shares

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(Neutral)
Form Type
4

Rhea-AI Filing Summary

SEALSQ Corp director Peter Ward exercised stock options and had shares withheld to cover taxes. On June 16, 2026, he exercised options to acquire 366,746 ordinary shares at an exercise price of $0.01 per share and related option rights were fully exercised.

To satisfy tax obligations from the exercise, 96,530 ordinary shares were disposed of as a tax-withholding transaction at a fair market value of $3.07 per share. After these transactions, Ward holds 270,531 ordinary shares directly, and no remaining derivative position from the exercised option awards is shown in this filing.

Positive

  • None.

Negative

  • None.
Insider Ward Peter
Role Director
Type Security Shares Price Value
Exercise Employee Stock Option Plan (right to buy) 13,649 $0.00 $0.00
Exercise Employee Stock Option Plan (right to buy) 353,097 $0.00 $0.00
Exercise Ordinary Shares 366,746 $0.01 $4K
Exercise Price or Tax Liability Ordinary Shares 96,530 $3.07 $296K
Holdings After Transaction: Employee Stock Option Plan (right to buy) — 0 shares (Direct); Ordinary Shares — 270,531 shares (Direct)
Footnotes (2)
  1. F1. The value of the withheld shares was calculated using a fair market value of $3.07 per share - the closing share price on June 16, 2026.
  2. F2. The accompanying tax-offset right, which was granted in tandem with the option, entitles the reporting person to receive, upon exercise of the option, a cash payment equal to the tax withholding incurred in connection with the exercise, including tax withholding incurred on the tax-offset payment.
Options exercised 366,746 shares at $0.01 Ordinary shares acquired via option exercise on June 16, 2026
Shares withheld for taxes 96,530 shares at $3.07 Tax-withholding disposition on June 16, 2026
Post-transaction holdings 270,531 shares Direct ownership after June 16, 2026 transactions
Option block exercised 353,097 options at $0.01 Employee Stock Option Plan grant expiring April 30, 2032
Additional option block 13,649 options at $0.01 Employee Stock Option Plan grant expiring October 24, 2031
Fair market value used $3.07 per share Closing price on June 16, 2026 for tax withholding
tax-withholding disposition financial
"transaction_action: "tax-withholding disposition""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
derivative exercise/conversion financial
"transaction_action: "derivative exercise/conversion""
Employee Stock Option Plan (right to buy) financial
"security_title: "Employee Stock Option Plan (right to buy)""
fair market value financial
"The value of the withheld shares was calculated using a fair market value of $3.07 per share"
The price a willing buyer and a willing seller would agree on for an asset or security when neither is under pressure and both have access to the same information. Think of it as the market’s neutral estimate of what something is worth, like the price two neighbors would settle on for a car after comparing similar listings. Investors care because fair market value guides buying and selling decisions, tax reporting, portfolio valuation, and how accurately company assets are reflected in financial statements.
tax-offset right financial
"The accompanying tax-offset right, which was granted in tandem with the option"

FAQ

What insider transaction did SEALSQ Corp (LAES) director Peter Ward report?

Peter Ward reported exercising stock options for ordinary shares and using some shares to cover taxes. The Form 4 shows option exercises and a tax-withholding disposition, rather than an open-market share purchase or sale.

How many SEALSQ Corp (LAES) shares did Peter Ward acquire through option exercises?

Peter Ward exercised options to acquire 366,746 ordinary shares at an exercise price of $0.01 per share. These exercises converted his derivative awards into common equity as part of his compensation arrangements.

How many SEALSQ Corp (LAES) shares were withheld for Peter Ward’s taxes?

A total of 96,530 ordinary shares were disposed of as a tax-withholding transaction. The value of these withheld shares was calculated using a fair market value of $3.07 per share, based on the June 16, 2026 closing price.

How many SEALSQ Corp (LAES) shares does Peter Ward hold after the reported transactions?

Following the reported option exercises and tax-withholding disposition, Peter Ward directly holds 270,531 ordinary shares. This figure reflects his direct ownership position after the June 16, 2026 transactions disclosed in the Form 4.

Were Peter Ward’s SEALSQ Corp (LAES) transactions open-market buys or sells?

The filing does not show open-market buys or sells. It reports option exercises and a tax-withholding disposition, where shares were used to satisfy tax liabilities related to exercising employee stock options.

What price was used to value SEALSQ Corp (LAES) shares withheld for taxes?

The withheld shares were valued at $3.07 per share. This amount represents the fair market value, equal to the closing price of SEALSQ Corp ordinary shares on June 16, 2026, as described in the footnote.

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Learn about SEC filing dates
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).
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*
Ward Peter

(Last)(First)(Middle)
C/O SEALSQ CORP
AVENUE LOUIS-CASAI 58

(Street)
COINTRIN1216

(City)(State)(Zip)

SWITZERLAND

(Country)
2. Issuer Name and Ticker or Trading Symbol
SEALSQ Corp [ LAES ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026
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
Ordinary Shares06/16/2026M366,746A$0.01367,061D
Ordinary Shares06/16/2026F96,530D$3.07(1)270,531D
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
Employee Stock Option Plan (right to buy)(2)$0.0106/16/2026M13,64910/28/202410/24/2031Ordinary Shares13,649$00D
Employee Stock Option Plan (right to buy)(2)$0.0106/16/2026M353,09705/01/202504/30/2032Ordinary Shares353,097$00D
Explanation of Responses:
1. The value of the withheld shares was calculated using a fair market value of $3.07 per share - the closing share price on June 16, 2026.
2. The accompanying tax-offset right, which was granted in tandem with the option, entitles the reporting person to receive, upon exercise of the option, a cash payment equal to the tax withholding incurred in connection with the exercise, including tax withholding incurred on the tax-offset payment.
/s/ John O'Hara, Attorney-in-Fact06/18/2026
** 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)