Form4insider filings, from the source

Company · CIK 0001951222 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

SEALSQ Corp · LAES

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $288k · 8net −$288k
$10k$10k$100k$100k$1M$1MbuyssalesJun 1Jun 16Jul 2Jul 18Aug 3Aug 19Sep 4

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 3, 2026 SForm 4 →Sep 3, 4:40 pm EDTJean-Pierre EnguentVice President, R&DSS15,000$2.40$36,0300−100%10b5-1
Sep 1, 2026 MForm 4 →Sep 3, 4:40 pm EDTJean-Pierre EnguentVice President, R&DSS15,000$0.01$15015,000—10b5-1
Aug 5, 2026 SForm 4 →Aug 5, 6:20 pm EDTJean-Pierre EnguentVice President, R&DSS15,000$2.46$36,8570−100%10b5-1
Aug 3, 2026 MForm 4 →Aug 5, 6:20 pm EDTJean-Pierre EnguentVice President, R&DSS15,000$0.01$15015,000—10b5-1
Jul 8, 2026 SForm 4 →Jul 8, 4:50 pm EDTJean-Pierre EnguentVice President, R&DSS15,000$2.82$42,2670−100%10b5-1
Jul 6, 2026 MForm 4 →Jul 8, 4:50 pm EDTJean-Pierre EnguentVice President, R&DSS15,000$0.01$15015,000—10b5-1
Jun 16, 2026 FMForm 4 →Jun 18, 4:45 pm EDTPeter WardDirector463,276$0.6476$300,015270,531—
Jun 5, 2026 SForm 4 →Jun 5, 5:20 pm EDTCarlos MoreiraChief Executive Officer, Director300$3.51$1,053696,215−0.04%10b5-1
Jun 5, 2026 SForm 4 →Jun 5, 5:20 pm EDTJohn Charles O'HaraChief Financial Officer, Director143$3.51$502250,431−0.06%10b5-1
Jun 3, 2026 SForm 4 →Jun 3, 5:15 pm EDTJean-Pierre EnguentVice President, R&DSS15,000$3.51$52,6520−100%10b5-1
Jun 2, 2026 SForm 4 →Jun 3, 5:15 pm EDTJohn Charles O'HaraChief Financial Officer, Director15,582$3.63$56,635250,574−5.85%10b5-1
Jun 2, 2026 SForm 4 →Jun 3, 5:15 pm EDTCarlos MoreiraChief Executive Officer, Director17,005$3.63$61,649696,515−2.38%10b5-1
Jun 1, 2026 MForm 4 →Jun 3, 5:15 pm EDTJean-Pierre EnguentVice President, R&DSS15,000$0.01$15015,000—10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 MForm 4 →Sep 3, 4:40 pm EDTJean-Pierre EnguentVice President, R&DSS15,000——0—10b5-1
Aug 3, 2026 MForm 4 →Aug 5, 6:20 pm EDTJean-Pierre EnguentVice President, R&DSS15,000——15,000—10b5-1
Jul 6, 2026 MForm 4 →Jul 8, 4:50 pm EDTJean-Pierre EnguentVice President, R&DSS15,000——30,000—10b5-1
Jun 16, 2026 MForm 4 →Jun 18, 4:45 pm EDTPeter WardDirector366,746——0—
Jun 1, 2026 AMForm 4 →Jun 3, 5:15 pm EDTJean-Pierre EnguentVice President, R&DSS75,000——45,000—10b5-1