SEALSQ Corp (LAES) VP exits 15,000-share position via 10b5-1 sale

Rhea-AI Filing Summary

SEALSQ Corp vice president sells shares under trading plan

SEALSQ Corp Vice President of R&DSS Jean-Pierre Enguent reported an open-market sale of 15,000 Ordinary Shares at a weighted average price of $3.1332 per share. After this transaction, he held 0 shares directly. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on October 13, 2025, and took place through multiple trades at prices between $2.95 and $3.33 per share.

Insider Trade Summary 10b5-1

Net Seller: 15,000 shares ($46,998)

Net Sell 1 txn

Insider Enguent Jean-Pierre

Role Vice President, R&DSS

Sold 15,000 shs ($47K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	15,000	$3.1332	$47K

Holdings After Transaction: Ordinary Shares — 0 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 $2.95 to $3.33, 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.

Key Figures

Shares sold: 15,000 shares Weighted average sale price: $3.1332 per share Post-transaction holdings: 0 shares +2 more

5 metrics

Shares sold 15,000 shares Open-market sale of Ordinary Shares

Weighted average sale price $3.1332 per share Average price for reported sale

Post-transaction holdings 0 shares Direct ownership after sale

Sale price range low $2.95 per share Lowest price in multiple transactions

Sale price range high $3.33 per share Highest price in multiple transactions

Key Terms

Rule 10b5-1 trading plan, weighted average price, open-market sale, Form 4

4 terms

Rule 10b5-1 trading plan regulatory

"sales reported in this Form 4 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 financial

"The price reported in Column 4 is a weighted average price."

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.

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.

Form 4 regulatory

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

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

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)
05/06/2026

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	05/06/2026(1)		S		15,000	D	$3.1332(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

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 $2.95 to $3.33, 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.

	/s/ John O'Hara, 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)

FAQ

What insider transaction did SEALSQ Corp (LAES) report on this Form 4?

SEALSQ Corp reported that Vice President of R&DSS Jean-Pierre Enguent sold 15,000 Ordinary Shares in an open-market transaction. The trades were executed at a weighted average price of $3.1332 per share, across multiple sales within a specified price range.

At what prices did Jean-Pierre Enguent sell SEALSQ Corp (LAES) shares?

The reported sale used a weighted average price of $3.1332 per share. According to the filing, individual trades occurred at prices ranging from $2.95 to $3.33 per share, inclusive, across multiple separate transactions within that band.

How many SEALSQ Corp (LAES) shares does the insider hold after this sale?

After selling 15,000 Ordinary Shares, the Form 4 states that Jean-Pierre Enguent directly holds 0 shares. This means his direct ownership position in SEALSQ Corp’s Ordinary Shares was fully sold in the reported transaction.

Was the SEALSQ Corp (LAES) insider sale made under a Rule 10b5-1 plan?

Yes. The filing states the sales were effected under a Rule 10b5-1 trading plan adopted by Jean-Pierre Enguent on October 13, 2025. Such pre-arranged plans schedule trades in advance according to preset instructions.

Who is the insider involved in the SEALSQ Corp (LAES) Form 4 filing?

The insider is Jean-Pierre Enguent, identified in the filing as Vice President, R&DSS of SEALSQ Corp. The Form 4 reports his direct open-market sale of 15,000 Ordinary Shares and shows no remaining directly held shares afterward.