SEALSQ CEO Moreira discloses initial share holdings

SEALSQ Corp Chief Executive Officer Carlos Moreira has reported his initial ownership stake in the company.

Rhea-AI Filing Summary

SEALSQ Corp Chief Executive Officer Carlos Moreira has reported his initial ownership stake in the company. The filing shows direct holdings of 66 Class F Shares and 607,397 Ordinary Shares. He also reports indirect ownership of 7,556 Ordinary Shares held by his son.

This Form 3 is a disclosure of existing positions rather than a report of new share purchases or sales, giving investors a baseline view of the CEO’s equity interest in SEALSQ Corp.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Moreira Carlos

Role Chief Executive Officer

Type	Security	Shares	Price	Value
holding	Class F Shares	--	--	--
holding	Ordinary Shares	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Class F Shares — 66 shares (Direct); Ordinary Shares — 607,397 shares (Direct); Ordinary Shares — 7,556 shares (Indirect, By son)

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does SEALSQ Corp (LAES) CEO Carlos Moreira report on this Form 3?

Carlos Moreira reports his existing share ownership in SEALSQ Corp. He discloses direct holdings of 66 Class F Shares and 607,397 Ordinary Shares, plus 7,556 Ordinary Shares held indirectly through his son, establishing a baseline of his equity interest as a director and Chief Executive Officer.

How many SEALSQ Corp (LAES) Ordinary Shares does Carlos Moreira directly own?

Carlos Moreira directly owns 607,397 Ordinary Shares of SEALSQ Corp. This direct position is in addition to 66 Class F Shares he holds. The ownership figures are reported as part of his initial beneficial ownership statement on Form 3 as a director and Chief Executive Officer.

What indirect ownership in SEALSQ Corp (LAES) does Carlos Moreira report?

Moreira reports indirect ownership of 7,556 SEALSQ Ordinary Shares. These shares are noted as held "By son," indicating they are attributed as indirect beneficial ownership. This indirect stake supplements his larger direct holdings disclosed in the same Form 3 filing.

Does this SEALSQ Corp (LAES) Form 3 show any insider buying or selling?

No, this Form 3 does not report insider buying or selling. It lists existing holdings: 66 Class F Shares and 607,397 Ordinary Shares held directly, plus 7,556 Ordinary Shares held indirectly by his son. The filing is an initial ownership disclosure, not a transaction report.

Why is Carlos Moreira’s Form 3 for SEALSQ Corp (LAES) important for investors?

The Form 3 provides transparency on the CEO’s equity stake in SEALSQ. By detailing direct and indirect share ownership, it helps investors understand how much stock the Chief Executive Officer and director holds, which can be relevant for assessing alignment with shareholder interests.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/18/2026 - 09:03 AM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Moreira Carlos

(Last) (First) (Middle)

C/O SEALSQ CORP

AVENUE LOUIS-CASAI 58

(Street)

COINTRIN 1216

(City) (State) (Zip)

SWAZILAND

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
SEALSQ Corp [ LAES ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class F Shares	66	D
Ordinary Shares	607,397	D
Ordinary Shares	7,556	I	By son

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ John O'Hara, Attorney-in-Fact	03/18/2026
	** 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 5 (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 3: SEC 1473 (03-26)