MIAX offering history
Every offering-related filing in MIAMI INTERNATIONAL HOLDINGS, INC.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 284 filings back to Jun 23, 2008.
| Date | Filing | What it means | |
|---|---|---|---|
| Jun 22, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 2, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 20, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 12, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Dec 15, 2025 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Dec 15, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Dec 11, 2025 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Dec 9, 2025 | S-1 → | REGISTERED | S-1 registration — capacity to sell shares, not a sale yet |
| Aug 15, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Aug 14, 2025 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Aug 13, 2025 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Aug 4, 2025 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Jul 18, 2025 | S-1 → | REGISTERED | S-1 registration — capacity to sell shares, not a sale yet |
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.
MIAX offering FAQ
When did MIAX last execute an offering?
Per SEC filings, MIAMI INTERNATIONAL HOLDINGS, INC.'s most recent priced offering document is a 8-K filed 2026-06-22. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did MIAX last announce or register an offering?
The most recent registration is a S-1 filed 2025-12-09. 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.