MIAX · NYSE · CIK 0001438472

MIAMI INTERNATIONAL HOLDINGS, INC.

MIAMI INTERNATIONAL HOLDINGS, INC.’s most recent SEC filing in our snapshot is a Form SCHEDULE 13G/A filed on Oct 27, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $1.4B and net income of -$70.0M, according to its XBRL data on EDGAR. Its EDGAR record lists 113 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
$1.4B
Net income, FY2025
-$70.0M
Form 4 filings on record, past 12 months
113

Company overview

Legal name (as filed)
MIAMI INTERNATIONAL HOLDINGS, INC.
Ticker
MIAX
SEC Central Index Key (CIK)
0001438472
Business address
PRINCETON, NJ
State or country of incorporation
DE
Fiscal year ends
—
SEC filer category
Non-accelerated filer
Position in SEC ticker list
#1609 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from MIAMI INTERNATIONAL HOLDINGS, INC.’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$1.0BFY2023$1.1BFY2024$1.4BFY2025
Net income
-$20.9MFY2023$102.1MFY2024-$70.0MFY2025
MIAX annual results
ItemFY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$1.0B$1.1B$1.4B
Net income-$20.9M$102.1M-$70.0M
Diluted EPS-$0.37$1.39-$1.00
Total assets—$973.7M$1.3B
Cash and equivalents$59.3M$150.3M$433.6M

XBRL tags used: revenue = RevenueFromContractWithCustomerExcludingAssessedTax; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareDiluted; cash = CashAndCashEquivalentsAtCarryingValue. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

MIAX latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Mar 6, 202610-KAnnual report· period Dec 31, 2025Document · Index
Aug 7, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Aug 5, 20268-KResults of operations· period Aug 5, 2026Document · Index
Apr 27, 2026DEF 14ADefinitive proxy statement· period Jun 16, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about MIAMI INTERNATIONAL HOLDINGS, INC., by form type:

4 ×23144 ×11SCHEDULE 13G ×28-K ×2SCHEDULE 13G/A ×110-Q ×1
MIAX recent filings
FiledFormWhat it isOriginal
Oct 27, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Oct 26, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 22, 2026Document · Index
Oct 26, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 22, 2026Document · Index
Oct 6, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 2, 2026Document · Index
Oct 2, 2026144Notice of proposed sale of securitiesDocument · Index
Sep 29, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 25, 2026Document · Index
Sep 17, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 16, 2026Document · Index
Sep 16, 2026144Notice of proposed sale of securitiesDocument · Index
Sep 11, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 11, 2026Document · Index
Sep 4, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 2, 2026Document · Index
Sep 4, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 3, 2026Document · Index
Sep 4, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 3, 2026Document · Index
Sep 4, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 2, 2026Document · Index
Sep 4, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 2, 2026Document · Index
Sep 3, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 20, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 18, 2026Document · Index
Aug 20, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 18, 2026Document · Index
Aug 19, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 19, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 17, 2026Document · Index
Aug 19, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 17, 2026Document · Index
Aug 17, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 14, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Aug 7, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Aug 6, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Aug 6, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Aug 6, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Aug 6, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Aug 6, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Aug 6, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Aug 6, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Aug 5, 20268-KResults of operations· period Aug 5, 2026Document · Index
Aug 4, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 4, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 4, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 4, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 4, 2026144Notice of proposed sale of securitiesDocument · Index
Jul 29, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Jul 21, 20268-KOther events· period Jul 20, 2026Document · Index
Jul 16, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 15, 2026Document · Index
Jul 15, 2026144Notice of proposed sale of securitiesDocument · Index

Insider filing activity

113 Form 4 filings appear in MIAMI INTERNATIONAL HOLDINGS, INC.’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001438472 and XBRL company facts. MIAMI INTERNATIONAL HOLDINGS, INC. on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.