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Offerings // SEALSQ Corp

LAES offering history

Every offering-related filing in SEALSQ Corp’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 264 filings back to Dec 9, 2022.

Last executed offering
Mar 17, 2026
424B5 — priced deal (shares or notes)
Last registration (announced)
Oct 20, 2025
F-3ASR — capacity, not a sale
Executed, last 12 months
3
424B pricings + 8-K 3.02 sales
Registered, last 12 months
2
S-1/S-3/F-series registrations
DateFilingWhat it means
Mar 17, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 20, 2025F-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Oct 20, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Oct 16, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 15, 2025F-3MEF →REGISTEREDF-3MEF registration — capacity to sell shares, not a sale yet
Oct 7, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 15, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 19, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 6, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 2, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Mar 25, 2025F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Feb 28, 2025F-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Jan 2, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 2, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 31, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 19, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 19, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 17, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 17, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 16, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 16, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Nov 27, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Nov 20, 2024F-3 →REGISTEREDF-3 registration — capacity to sell shares, not a sale yet
Nov 19, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 25, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 25, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Sep 24, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 24, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Sep 12, 2024F-1/A →REGISTEREDF-1/A registration — capacity to sell shares, not a sale yet
Jul 31, 2024F-1/A →REGISTEREDF-1/A registration — capacity to sell shares, not a sale yet
Jul 2, 2024F-1/A →REGISTEREDF-1/A registration — capacity to sell shares, not a sale yet
May 17, 2024F-1/A →REGISTEREDF-1/A registration — capacity to sell shares, not a sale yet
Apr 15, 2024F-1 →REGISTEREDF-1 registration — capacity to sell shares, not a sale yet
Mar 22, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 11, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 8, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 5, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 14, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 12, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Feb 5, 2024F-1 →REGISTEREDF-1 registration — capacity to sell shares, not a sale yet
LAES offering-related filings from SEC EDGAR, newest first (capped at 40). Each links to the original document.

Two honest limits. (1) A 424B takedown can price shares or notes— EDGAR’s metadata doesn’t say which, so open the document: large investment-grade filers use these mostly for bond deals (no dilution), small-caps mostly for shares. (2) At-the-market (ATM) programs sell shares gradually and individual sales are not separately filed — the visible footprint is the enabling shelf and its 424B5; actual ATM share counts surface later in the 10-Q/10-K share count. Educational information from public filings, not investment advice.

Is a shelf active now? →Do they need money? →Red flags →Full LAES workspace →
LAES offering FAQ

When did LAES last execute an offering?

Per SEC filings, SEALSQ Corp's most recent priced offering document is a 424B5 filed 2026-03-17. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did LAES last announce or register an offering?

The most recent registration is a F-3ASR filed 2025-10-20. A registration is capacity to sell shares — not a sale.

Does an offering always mean dilution?

Registered direct offerings and shelf takedowns issue new shares and dilute existing holders. Resale registrations (424B3/B7) let existing holders sell and do not create new shares. Secondary sales by insiders also do not dilute. Each row here is labeled with what it is.