MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
Security Brokers, Dealers & Flotation CompaniesNYSE<br>Emerging growth company
Total Trades
5
Buys
4
Sells
1
Largest Trade
$1M+
Insiders
1
Institutional Funds
111
Inst. Value
$1M+
Activist Filings
4
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| STAHL MURRAY | Director | BUY | $100K–$500K | 7K | $43.38 | Mar 5, 2026 |
| STAHL MURRAY | Director | SELL | $1M+ | 121K | $40.92 | Mar 4, 2026 |
| STAHL MURRAY | Director | BUY | $50K–$100K | 2K | $41.00 | Dec 15, 2025 |
| STAHL MURRAY | Director | BUY | <$1K | 4 | $41.76 | Sep 30, 2025 |
| STAHL MURRAY | Director | BUY | $1M+ | 34K | $36.10 | Sep 30, 2025 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 111 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| HORIZON KINETICS ASSET MANAGEMENT LLC | 1.8M | $1M+ | SH |
| VANGUARD GROUP INC | 1.8M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 1.4M | $1M+ | SH |
| Alyeska Investment Group, L.P. | 1.3M | $1M+ | SH |
| Caldwell Investment Management Ltd. | 739K | $1M+ | SH |
| JPMORGAN CHASE & CO | 736K | $1M+ | SH |
| LORD, ABBETT & CO. LLC | 643K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 581K | $1M+ | SH |
| STATE STREET CORP | 576K | $1M+ | SH |
| JANE STREET GROUP, LLC | 440K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 440K | $1M+ | SH |
| SEVEN GRAND MANAGERS, LLC | 400K | $1M+ | SH |
| VICTORY CAPITAL MANAGEMENT INC | 392K | $1M+ | SH |
| Intrinsic Edge Capital Management LLC | 323K | $1M+ | SH |
| Burkehill Global Management, LP | 290K | $1M+ | SH |
| Delta Global Management LP | 279K | $1M+ | SH |
| NORGES BANK | 277K | $1M+ | SH |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 274K | $1M+ | SH |
| Penn Capital Management Company, LLC | 252K | $1M+ | SH |
| AXIOM INVESTORS LLC /DE | 243K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
HORIZON KINETICS ASSET MANAGEMENT LLC
SC 13D/A · Nov 26, 2025
11.7%
9.5M shares
SC 13D/A · Aug 28, 2025
4.9%
4.0M shares
SC 13D · Aug 21, 2025
5.1%
4.2M shares
HORIZON KINETICS ASSET MANAGEMENT LLC
SC 13D · Aug 21, 2025
10.7%
8.7M shares