SEALSQ (LAES) VP exercises options, then sells 15,000 shares under 10b5-1 plan

Rhea-AI Filing Summary

SEALSQ Corp vice president Jean-Pierre Enguent reported an exercise-and-sell transaction in Ordinary Shares. He exercised 15,000 shares from an employee stock option at $0.01 per share on July 6, 2026, then sold 15,000 shares at a weighted average price of $2.8178 on July 8, 2026. After these transactions, his directly held Ordinary Shares position is reported as 0 shares. Both the option exercise and the sale were carried out under a Rule 10b5-1 trading plan adopted on October 13, 2025.

Insights

Equity compensation and insider-trading analyst

Routine exercise-and-sell by SEALSQ VP under a 10b5-1 plan with no remaining common shares reported.

Vice President Jean-Pierre Enguent exercised options for 15,000 Ordinary Shares at $0.01 per share, then sold 15,000 shares at a weighted average of $2.8178. This is a classic exercise-and-sell pattern converting an option award into cash.

The filing states that both the option exercise and the sale were executed under a Rule 10b5-1 trading plan adopted on October 13, 2025, indicating these trades were pre-scheduled rather than opportunistic. Following the sale, his reported direct Ordinary Share holdings are 0 shares, while this single filing does not show any remaining derivative summary.

Insider Trade Summary 10b5-1

Net Seller: 15,000 shares ($42,267)

Net Sell 3 txns

Insider Enguent Jean-Pierre

Role Vice President, R&DSS

Sold 15,000 shs ($42K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	15,000	$2.8178	$42K
Exercise	Employee Stock Option Plan (right to buy)	15,000	$0.00	--
Exercise	Ordinary Shares	15,000	$0.01	$150.00

Holdings After Transaction: Ordinary Shares — 0 shares (Direct, null); Employee Stock Option Plan (right to buy) — 30,000 shares (Direct, null)

Footnotes (1)

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 13, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.73to $2.91, inclusive. The reporting person undertakes to provide to SEALSQ Corp, any security holder of SEALSQ Corp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. The option exercise reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 13, 2025.

Key Figures

Shares sold: 15,000 shares Weighted average sale price: $2.8178 per share Options exercised: 15,000 shares +2 more

5 metrics

Shares sold 15,000 shares Ordinary Shares sold in open-market transaction on July 8, 2026

Weighted average sale price $2.8178 per share Open-market sale of 15,000 Ordinary Shares

Options exercised 15,000 shares Employee Stock Option Plan exercise on July 6, 2026

Option exercise price $0.01 per share Conversion or exercise price for 15,000 Ordinary Shares

Shares owned after sale 0 shares Total directly held Ordinary Shares after July 8, 2026 sale

Key Terms

Rule 10b5-1 trading plan, weighted average price, Employee Stock Option Plan (right to buy), Exercise or conversion of derivative security

4 terms

Rule 10b5-1 trading plan regulatory

"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"

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 financial

"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Employee Stock Option Plan (right to buy) financial

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

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/08/2026 - 04:51 PM Accepted by SEC EDGAR 07/08/2026 - 04:50 PM Learn about SEC filing dates

FAQ

What insider transaction did SEALSQ Corp (LAES) report for Jean-Pierre Enguent?

SEALSQ reported that vice president Jean-Pierre Enguent exercised options for 15,000 Ordinary Shares at $0.01 and then sold 15,000 shares at a weighted average price of $2.8178, leaving him with zero directly held Ordinary Shares after the transactions.

How many SEALSQ (LAES) shares did the vice president sell and at what price?

Jean-Pierre Enguent sold 15,000 SEALSQ Ordinary Shares in an open-market transaction. The weighted average sale price was $2.8178 per share, with individual trades executed between $2.73 and $2.91, as disclosed in the Form 4 footnote describing the price range.

What options did the SEALSQ (LAES) vice president exercise in this Form 4?

He exercised an Employee Stock Option Plan award for 15,000 Ordinary Shares at a conversion or exercise price of $0.01 per share. The option transaction is coded “M,” indicating an exercise or conversion of a derivative security into common stock on July 6, 2026.

Were SEALSQ (LAES) insider trades made under a Rule 10b5-1 plan?

Yes. The Form 4 footnotes state that both the sale of 15,000 Ordinary Shares and the related option exercise were effected under a Rule 10b5-1 trading plan adopted by Jean-Pierre Enguent on October 13, 2025, indicating these trades were pre-arranged rather than discretionary.

What is the SEALSQ (LAES) vice president’s shareholding after these transactions?

After exercising options and selling 15,000 Ordinary Shares, Jean-Pierre Enguent’s reported direct ownership of SEALSQ Ordinary Shares is zero. The non-derivative transaction table lists total shares following the open-market sale as 0.0000, meaning no directly held common shares remain in this filing.

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^*

Enguent Jean-Pierre

(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)
	Vice President, R&DSS

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/06/2026

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
Ordinary Shares	07/06/2026		M		15,000	A	$0.01	15,000	D
Ordinary Shares	07/08/2026(1)		S		15,000	D	$2.8178(2)	0	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
Employee Stock Option Plan (right to buy)	$0.01	07/06/2026(3)		M			15,000	06/01/2026	04/30/2032	Ordinary Shares	15,000	$0	30,000	D

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 on October 13, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.73to $2.91, inclusive. The reporting person undertakes to provide to SEALSQ Corp, any security holder of SEALSQ Corp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

3. The option exercise reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 13, 2025.

	/s/ John O'Hara, Attorney-in-Fact	07/08/2026
	** 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)