What price ranges applied to the SEALSQ Corp (LAES) CEO share sales?

The Form 4 notes weighted average prices and ranges. One sale involved prices from $3.56 to $3.78 per share, and the other from $3.50 to $3.61 per share. Specific breakdowns are available upon request from the company or filer.

SEALSQ Corp (NASDAQ: LAES) CEO Moreira sells 17,005 shares in pre-set 10b5-1 trades

Filing Impact

(Neutral)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

SEALSQ Corp Chief Executive Officer Carlos Moreira reported open-market sales of company stock. On June 2, 2026, he sold 10,000 Ordinary Shares at a weighted average price of $3.6905 per share. On June 3, 2026, he sold an additional 7,005 Ordinary Shares at a weighted average price of $3.5324 per share.

Both transactions were executed as open-market sales under a Rule 10b5-1 trading plan adopted on October 12, 2025. After these sales, Moreira directly holds 696,515 Ordinary Shares of SEALSQ Corp, indicating he continues to maintain a substantial ownership stake while realizing some liquidity through pre-planned trades.

Insights

CEO executes pre-planned sales of a modest portion of holdings.

SEALSQ Corp CEO Carlos Moreira sold a total of 17,005 Ordinary Shares across two days at weighted average prices of $3.6905 and $3.5324. These are open-market sales and represent net selling activity in the period covered.

The filing notes the trades were made under a Rule 10b5-1 trading plan adopted on October 12, 2025. Such plans are typically established in advance, which makes the timing of the sales more mechanical and less reflective of short-term views on the stock.

Following these transactions, Moreira directly holds 696,515 Ordinary Shares, indicating he retains a significant equity position. As a result, the activity appears to be routine portfolio and liquidity management rather than a transformative change in insider ownership.

Insider Trade Summary 10b5-1

Net Seller: 17,005 shares ($61,649)

Net Sell 2 txns

Insider Moreira Carlos

Role Chief Executive Officer

Sold 17,005 shs ($62K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	7,005	$3.5324	$25K
Sale	Ordinary Shares	10,000	$3.6905	$37K

Holdings After Transaction: Ordinary Shares — 696,515 shares (Direct, null)

Footnotes (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 12, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.56 to $3.78, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.50 to $3.61, 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 (3) to this Form 4.

Key Figures

Total shares sold: 17,005 shares Shares sold on June 2, 2026: 10,000 shares Shares sold on June 3, 2026: 7,005 shares +3 more

6 metrics

Total shares sold 17,005 shares Open-market sales on June 2–3, 2026

Shares sold on June 2, 2026 10,000 shares Ordinary Shares, open-market sale

Shares sold on June 3, 2026 7,005 shares Ordinary Shares, open-market sale

Weighted average price June 2 $3.6905 per share Multiple transactions, range $3.56–$3.78

Weighted average price June 3 $3.5324 per share Multiple transactions, range $3.50–$3.61

Shares held after transactions 696,515 shares Direct ownership following June 3, 2026 sale

Key Terms

Rule 10b5-1 trading plan, weighted average price, open-market sale, Ordinary Shares

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 on October 12, 2025."

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 at prices ranging from $3.56 to $3.78, inclusive."

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.

Ordinary Shares financial

"security_title: Ordinary Shares"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

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Form 4 Insider Transactions: What Each Field Means →

06/03/2026 - 05:15 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^*

Moreira Carlos

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/02/2026

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	06/02/2026⁽¹⁾		S		10,000	D	$3.6905⁽²⁾	703,520	D
Ordinary Shares	06/03/2026⁽¹⁾		S		7,005	D	$3.5324⁽³⁾	696,515	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)
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)

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 12, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.56 to $3.78, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.50 to $3.61, 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 (3) to this Form 4.

	/s/ John O'Hara, Attorney-in-Fact	06/03/2026
	** 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 Corp (LAES) report for Carlos Moreira?

SEALSQ Corp CEO Carlos Moreira reported selling Ordinary Shares in two open-market transactions. He sold 10,000 shares on June 2, 2026, and 7,005 shares on June 3, 2026, according to the Form 4 filing.

How many SEALSQ Corp (LAES) shares did the CEO sell and at what prices?

Carlos Moreira sold a total of 17,005 Ordinary Shares. He sold 10,000 shares at a weighted average price of $3.6905 and 7,005 shares at a weighted average price of $3.5324, based on multiple trades within stated price ranges.

Does SEALSQ Corp CEO Carlos Moreira still own shares after these Form 4 sales?

Yes. After the reported sales, Carlos Moreira directly holds 696,515 Ordinary Shares of SEALSQ Corp. The Form 4 indicates these holdings remain in his direct ownership following the June 2026 transactions.

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

Yes. The Form 4 states the sales were effected under a Rule 10b5-1 trading plan adopted by Carlos Moreira on October 12, 2025. Such plans pre-schedule trades, reducing the significance of trade timing.