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MIAXNYSE
MIAMI INTERNATIONAL HOLDINGS, INC.
Security Brokers, Dealers & Flotation Companies · DE · CIK 1438472
Operates regulated financial marketplaces across multiple asset classes using proprietary technology
red 8-K · 90d
$4.11B
Market cap
$36.83
Last close
-2.9%
1D
+0.5%
5D
3.1M
Volume
Price · last 39 sessions-22.2%
May 4L $35.81 · H $56.84Jun 29
28
Total filings
Jun 22, 2026
Last filing
—
Fiscal year end
8-KEquity IssuanceJun 22, 20268-KShareholder VoteJun 18, 20268-KExecutive ChangeJun 17, 2026SC 13D/ASC 13D/AMay 21, 202610-Q10-QMay 8, 20268-KResults of OperationsMay 6, 2026SC 13D/ASC 13D/AApr 28, 2026DEFA14ADEFA14AApr 27, 2026DEF 14ADEF 14AApr 27, 20268-KExecutive ChangeApr 27, 2026SC 13D/ASC 13D/AApr 14, 20268-KExecutive ChangeApr 9, 20268-KExecutive ChangeMar 26, 202610-K10-KMar 6, 20268-KEquity IssuanceMar 2, 20268-KResults of OperationsFeb 25, 20268-KEquity IssuanceFeb 20, 20268-KEquity IssuanceFeb 12, 20268-KCompany UpdateJan 21, 20268-KEquity Issuance · Company UpdateDec 15, 2025424B4424B4Dec 15, 2025S-1S-1Dec 9, 20258-KCompany UpdateNov 26, 202510-Q10-QNov 7, 20258-KResults of OperationsNov 5, 20258-KExecutive ChangeOct 8, 20258-KAgreement TerminatedAug 19, 20258-KEquity Issuance · Company UpdateAug 15, 2025424B4424B4Aug 14, 2025S-1/AS-1/AAug 4, 2025S-1S-1Jul 18, 2025
Insider Activity
◆ Cluster Buy · 2 insidersIn the 90 days to Mar 25, 2026: 2 insiders bought $935K · 6 sold $11.6M.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 25, 2026 | Teekell Judson GrayDirector | Sell | 300 | $40.00 | $12K |
| Mar 23, 2026 | Brown ShellyEVP, Chief Strategy Officer | Sell | 25,932 | $39.33 | $1.0M |
| Mar 19, 2026 | Eckert Kurt M.Director | Sell | 37,917 | $39.00 | $1.5M |
| Mar 17, 2026 | Schafer Douglas M. JrEVP and CIO | Sell | 48,000 | $39.74 | $1.9M |
| Mar 5, 2026 | Stahl MurrayDirector,TenPercentOwner | Buy | 7,200 | $43.08 | $310K |
| Mar 4, 2026 | Stahl MurrayDirector,TenPercentOwner | Buy | 7,200 | $43.38 | $312K |
| Mar 4, 2026 | Horizon Kinetics Asset Management Llc | Buy | 7,200 | $43.38 | $312K |
| Mar 2, 2026 | Horizon Kinetics Asset Management Llc | Sell | 121,054 | $40.92 | $5.0M |
| Mar 2, 2026 | Stahl MurrayDirector,TenPercentOwner | Sell | 53,578 | $40.92 | $2.2M |
| Dec 12, 2025 | Stahl MurrayDirector,TenPercentOwner | Buy | 2,439 | $41.00 | $100K |
| Oct 3, 2025 | Horizon Kinetics Asset Management Llc | Buy | 2 | $41.97 | $84 |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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