Every Form 4 that SEALSQ Corp (LAES) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow LAES and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full LAES filings page.
SEALSQ Corp (LAES) insider Enguent Jean-Pierre, Vice President, R&DSS, reported option-related trades in Ordinary Shares. On September 1, 2026 he exercised options for 15,000 shares at an exercise price of $0.01 per share, and on September 3, 2026 he sold 15,000 shares at a weighted average price of $2.402 per share in multiple transactions between $2.38 and $2.4253. Both the option exercise and the subsequent sales were effected under a Rule 10b5-1 trading plan adopted on October 13, 2025.
SEALSQ Corp Vice President Jean-Pierre Enguent exercised employee stock options for 15,000 Ordinary Shares at $0.01 per share on 2026-08-03, then on 2026-08-05 sold 15,000 Ordinary Shares at a weighted-average price of $2.4571 per share, with both transactions effected under a Rule 10b5-1 trading plan adopted on October 13, 2025.
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.
SEALSQ Corp director Peter Ward exercised stock options and had shares withheld to cover taxes. On June 16, 2026, he exercised options to acquire 366,746 ordinary shares at an exercise price of $0.01 per share and related option rights were fully exercised.
To satisfy tax obligations from the exercise, 96,530 ordinary shares were disposed of as a tax-withholding transaction at a fair market value of $3.07 per share. After these transactions, Ward holds 270,531 ordinary shares directly, and no remaining derivative position from the exercised option awards is shown in this filing.
SEALSQ Corp Chief Executive Officer Carlos Moreira reported an open-market sale of Ordinary Shares. On June 5, 2026, he sold 300 shares of SEALSQ Corp at $3.51 per share and held 696,215 shares afterward. The sale was made under a Rule 10b5-1 trading plan adopted on October 12, 2025, indicating it was pre-arranged rather than a discretionary trade.
SEALSQ Corp Chief Financial Officer John Charles O'Hara sold 143 Ordinary Shares of LAES in an open-market transaction on June 5, 2026 at a weighted average price of $3.51 per share under a Rule 10b5-1 trading plan adopted on October 17, 2025.
Following this sale, he directly owns 250,431 Ordinary Shares.
SEALSQ Corp Chief Financial Officer John Charles O'Hara reported selling a total of 15,582 Ordinary Shares of LAES in open-market transactions. He sold 10,000 shares on June 2, 2026 at a weighted average price of $3.6931 per share and 5,582 shares on June 3, 2026 at a weighted average price of $3.53 per share. The trades were made under a pre-arranged Rule 10b5-1 trading plan adopted on October 17, 2025, indicating they were scheduled in advance. Following these sales, O'Hara directly holds 250,574 Ordinary Shares of SEALSQ Corp.
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.
SEALSQ Corp vice president Jean-Pierre Enguent reported option-related trades in Ordinary Shares. On June 1, 2026, he exercised options to acquire 15,000 Ordinary Shares at $0.01 per share and also received a grant of 60,000 stock options with the same exercise price, expiring on April 30, 2032.
On June 3, 2026, he sold 15,000 Ordinary Shares in an open-market transaction at a weighted average price of $3.5101 per share, in multiple trades between $3.44 and $3.66. Both the sale and the option exercise were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on October 13, 2025, and he reported no Ordinary Shares held directly after these transactions.
SEALSQ Corp Chief Executive Officer Carlos Moreira reported open-market sales of a total of 14,139 Ordinary Shares of LAES. He sold 4,139 shares on May 27, 2026 at a weighted average price of $3.5039 per share and 10,000 shares on May 29, 2026 at a weighted average price of $3.5086 per share.
After these transactions, Moreira directly holds 713,520 Ordinary Shares. The filing notes that these sales were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on October 12, 2025, indicating they were scheduled in advance rather than timed discretionarily.
SEALSQ Corp Chief Financial Officer John Charles O'Hara reported selling a total of 14,689 ordinary shares of LAES in two open-market transactions. The sales occurred on May 27 and May 29, 2026 at weighted average prices of about $3.50 per share, within disclosed price ranges between $3.50 and $3.53. These transactions were carried out under a pre-established Rule 10b5-1 trading plan. Following the sales, O'Hara directly holds 266,156 ordinary shares of SEALSQ Corp.
SEALSQ Corp Vice-President of Global Sales Franck Jean Buonanno sold 20,000 Ordinary Shares of LAES in an open-market transaction. The shares were sold at an average price of $2.90 per share, and he now directly holds 10,000 Ordinary Shares after the sale.
The transaction was carried out pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 13, 2025, indicating the sale was pre-scheduled rather than timed at discretion.
SEALSQ Corp Vice-President of Global Sales Franck Jean Buonanno exercised employee stock options to acquire 20,000 Ordinary Shares at $0.01 per share. Following the transaction, he directly holds 30,000 Ordinary Shares. The option exercise was carried out under a Rule 10b5-1 trading plan adopted on October 13, 2025.
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.
SEALSQ Corp Vice President, R&DSS Jean-Pierre Enguent exercised employee stock options to acquire 15,000 Ordinary Shares. On May 4, 2026, he exercised options with a conversion price of $0.01 per share under an Employee Stock Option Plan. Following the transaction, he directly holds 15,000 Ordinary Shares. The filing notes the option exercise was carried out under a Rule 10b5-1 trading plan adopted on October 13, 2025, indicating the transaction was pre-scheduled.
SEALSQ Corp Chief Financial Officer John Charles O'Hara reported open-market sales of a total of 25,250 Ordinary Shares of SEALSQ over three days. He sold 10,000 shares at a weighted average price of $3.0561 on April 22, 2026, 10,000 shares at $2.8800 on April 23, 2026, and 5,250 shares at $2.9065 on April 24, 2026.
All transactions were executed under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person. After these sales, O'Hara directly holds 280,845 Ordinary Shares, indicating he retains a substantial equity position in SEALSQ.
SEALSQ Corp Chief Financial Officer John Charles O'Hara reported selling a total of 20,000 Ordinary Shares of LAES in open-market transactions over two days. He sold 10,000 shares on April 20, 2026 at a weighted average price of $2.7879 per share and another 10,000 shares on April 21, 2026 at a weighted average price of $3.0378 per share. According to the filing, these sales were carried out under a pre-established Rule 10b5-1 trading plan, indicating they were pre-arranged rather than discretionary. Following these transactions, O'Hara directly holds 306,095 Ordinary Shares of SEALSQ Corp.
SEALSQ Corp director and CFO John Charles O'Hara sold 20,000 Ordinary Shares in two open-market transactions. On April 16, 2026, he sold 10,000 shares at a weighted average price of $2.6947 per share. On April 17, 2026, he sold another 10,000 shares at a weighted average price of $2.7210 per share. After these sales, he directly holds 326,095 Ordinary Shares. The filing states that the transactions were effected under a Rule 10b5-1 trading plan adopted on October 17, 2025, and that each reported price reflects a weighted average for multiple trades within disclosed price ranges.
SEALSQ Corp Chief Financial Officer John Charles O'Hara reported compensation-related equity activity involving 130,500 options and the same number of ordinary shares. He received an employee stock option grant for 130,500 shares at an exercise price of $0.01 per share and then exercised the entire grant on the same day, acquiring 130,500 ordinary shares.
Following the exercise, his directly held ordinary shares increased to 346,095. The filing notes that the option exercise was carried out under a pre-arranged Rule 10b5-1 trading plan, indicating the transaction timing was set in advance rather than decided opportunistically.
SEALSQ Corp Chief Financial Officer John Charles O'Hara sold 30,000 Ordinary Shares in open-market trades. The sales occurred over three days, with 10,000 shares sold on each of April 7, 8, and 9, 2026 at weighted average prices of $2.1382, $2.1984, and $2.0820 per share, respectively.
The transactions were executed as part of a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person on October 17, 2025. Following these sales, O'Hara directly holds 215,595 Ordinary Shares of SEALSQ Corp.
SEALSQ Corp vice president Jean-Pierre Enguent exercised and sold company stock in a pre-planned transaction. On April 6, 2026, he exercised an Employee Stock Option Plan to acquire 15,000 Ordinary Shares at an exercise price of $0.01 per share. The same day, his non-derivative holdings rose to 15,000 shares. On April 8, 2026, he sold 15,000 Ordinary Shares in an open-market transaction at a weighted average price of $2.1984 per share, with individual trade prices ranging from $2.13 to $2.42. After the sale, he held no Ordinary Shares, and no remaining derivative options are shown. All transactions were executed under a Rule 10b5-1 trading plan adopted on October 13, 2025.
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.
SEALSQ Corp Chief Financial Officer John Charles O'Hara sold 20,000 Ordinary Shares of LAES in open-market transactions. The sales were split into 10,000 shares at a weighted average price of $2.4532 and 10,000 shares at a weighted average price of $2.4173. These trades were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on October 17, 2025, indicating they were scheduled in advance. Following the transactions, O'Hara directly holds 245,595 Ordinary Shares.
SEALSQ Corp Vice-President of Global Sales Franck Jean Buonanno sold 10,000 Ordinary Shares of LAES in an open-market transaction. The shares were sold at $2.35 per share, and he now directly holds 10,000 Ordinary Shares following the sale. According to the footnote, these sales were effected under a pre-arranged Rule 10b5-1 trading plan adopted on October 13, 2025, indicating they were scheduled in advance rather than timed discretionarily.
SEALSQ Corp Chief Financial Officer John Charles O'Hara received and exercised stock options linked to the company’s ordinary shares. He was granted 100,000 employee stock options with a $0.01 exercise price per share and then exercised all of them to acquire 100,000 ordinary shares.
Following these transactions, his direct ownership in SEALSQ increased to 265,595 ordinary shares. A footnote states that the option exercise was carried out under a pre-arranged Rule 10b5-1 trading plan adopted by O'Hara on October 17, 2025, indicating the timing was set in advance.
SEALSQ Corp Vice-President, Global Sales Franck Jean Buonanno exercised employee stock options to acquire 15,000 ordinary shares. The options had an exercise price of $0.01 per share. Following this derivative exercise, he directly holds a total of 20,000 ordinary shares. No open-market sale or gift was reported in this filing, indicating an exercise-and-hold transaction rather than a sale.
SEALSQ Corp director and CFO John Charles O'Hara reported open-market sales of 30,000 Ordinary Shares of LAES. The transactions occurred on March 23, 24, and 25, 2026, in three blocks of 10,000 shares at weighted average prices of about $2.99, $2.90, and $2.92 per share.
The filing states these sales were effected under a Rule 10b5-1 trading plan adopted on October 17, 2025, indicating they were pre-scheduled. After the most recent transaction, O'Hara continues to hold 165,183 Ordinary Shares directly.
SEALSQ Corp Chief Financial Officer John Charles O'Hara reported selling 20,000 Ordinary Shares in two open-market transactions. He sold 10,000 shares on March 19, 2026 at a weighted average price of $3.0188 and 10,000 shares on March 20, 2026 at a weighted average price of $2.9989.
The filing states these sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on October 17, 2025, which means the trades were scheduled in advance. After these transactions, O'Hara directly holds 195,183 Ordinary Shares of SEALSQ Corp.
SEALSQ Corp Company Secretary Nathalie Claude Odile Verjus reported an open-market sale of 5,000 Ordinary Shares on March 18, 2026. The weighted average sale price was $3.0258 per share, with individual trades executed between $2.98 and $3.09.
The transactions were effected pursuant to a Rule 10b5-1 trading plan adopted on October 24, 2025. Following this sale, Verjus directly holds 185,000 Ordinary Shares of SEALSQ Corp.