SEALSQ (LAES) CIO’s wife exercises 10K options and sells shares under plan

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

SEALSQ Corp’s Chief Innovation Officer, Andreas Feuardent Moreira, reported an exercise-and-sale transaction involving shares held indirectly through his wife. On April 7, 2026, an Employee Stock Option for 10,000 ordinary shares was exercised at $0.01 per share, creating 10,000 indirectly held shares. That same day, those 10,000 ordinary shares were sold at $2.31 per share, leaving no shares from this block remaining indirectly held. The filing notes the sales were carried out under a Rule 10b5-1 trading plan adopted by his wife on December 8, 2025, indicating the dispositions were pre-planned rather than timed discretionarily.

Insider Trade Summary 10b5-1

Net Seller: 10,000 shares ($23,100)

Net Sell 3 txns

Insider Feuardent Moreira Andreas

Role Chief Innovation Officer

Sold 10,000 shs ($23K)

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option Plan (right to buy)	10,000	$0.00	--
Exercise	Ordinary Shares	10,000	$0.01	$100.00
Sale	Ordinary Shares	10,000	$2.31	$23K

Holdings After Transaction: Employee Stock Option Plan (right to buy) — 0 shares (Indirect, By wife); Ordinary Shares — 10,000 shares (Indirect, By wife)

Footnotes (1)

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Key Figures

Options exercised: 10,000 shares Exercise price: $0.01 per share Shares sold: 10,000 shares +4 more

7 metrics

Options exercised 10,000 shares Employee Stock Option Plan exercised on April 7, 2026

Exercise price $0.01 per share Exercise price of 10,000 options into ordinary shares

Shares sold 10,000 shares Ordinary shares sold on April 7, 2026

Sale price $2.31 per share Open-market sale price for 10,000 ordinary shares

Net shares from block 0 shares Indirect holdings from this 10,000-share block after sale

Option expiration June 4, 2032 Expiration date of Employee Stock Option before exercise

10b5-1 plan adoption December 8, 2025 Date reporting person’s wife adopted trading plan

Key Terms

Employee Stock Option Plan (right to buy), Rule 10b5-1 trading plan, open-market sale, derivative exercise/conversion, +1 more

5 terms

Employee Stock Option Plan (right to buy) financial

"security_title: "Employee Stock Option Plan (right to buy)""

Rule 10b5-1 trading plan financial

"sales reported ... 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.

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

derivative exercise/conversion financial

"transaction_action: "derivative exercise/conversion""

indirect ownership financial

"ownership_type: "indirect" and nature_of_ownership: "By wife""

Form 4 Insider Transactions: What Each Field Means →

04/08/2026 - 04:15 PM

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^*

Feuardent Moreira Andreas

(Last)

(First)

(Middle)

C/O SEALSQ CORP

AVENUE LOUIS-CASAI 58

(Street)

COINTRIN

1216

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/07/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Ordinary Shares	04/07/2026		M		10,000	A	$0.01	10,000	I	By wife
Ordinary Shares	04/07/2026		S		10,000	D	$2.31	0	I	By wife

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Employee Stock Option Plan (right to buy)	$0.01	04/07/2026⁽¹⁾		M			10,000	06/18/2025	06/04/2032	Ordinary Shares	10,000	$0	0	I	By wife

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person's wife on December 8, 2025.

	/s/ John O'Hara, Attorney-in-Fact	04/08/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did SEALSQ (LAES) disclose in this Form 4?

SEALSQ disclosed that 10,000 stock options were exercised into 10,000 ordinary shares, which were then sold the same day. The shares were held indirectly through the Chief Innovation Officer’s wife under an established Rule 10b5-1 trading plan.

How many SEALSQ (LAES) shares were sold and at what price?

The filing reports a sale of 10,000 SEALSQ ordinary shares at a price of $2.31 per share. These shares had just been acquired through an option exercise and were held indirectly through the reporting person’s wife.

What was the exercise price of the SEALSQ (LAES) options in this Form 4?

The Employee Stock Option Plan position was exercised at an exercise price of $0.01 per share for 10,000 underlying ordinary shares. After exercise, those 10,000 indirectly held shares were immediately sold in the market at $2.31 per share.

Were the SEALSQ (LAES) insider sales under a Rule 10b5-1 plan?

Yes. The Form 4 states that the sales were effected under a Rule 10b5-1 trading plan adopted by the reporting person’s wife on December 8, 2025. Such plans pre-schedule trades, reducing the significance of trade timing decisions.

Did the SEALSQ (LAES) insider retain any shares from this transaction?

According to the Form 4, 10,000 ordinary shares were held indirectly after the option exercise and then all 10,000 were sold. Following the sale, the reported indirect holdings from this specific block were reduced to zero shares.