Miami International Holdings Ownership | Who Owns Miami International Holdings?
Miami International Holdings Ownership Summary
Miami International Holdings is owned by 9.81% institutional investors, and 90.19% retail investors. T. rowe price investment management is the largest institutional shareholder, holding 3.47% of MIAX shares.
MIAX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Miami International Holdings | 9.81% | - | 90.19% |
| Industry | Capital Markets Stocks | 35.43% | 14.68% | 49.89% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| T. rowe price investment management | 2.43M | 3.47% | $97.86M |
| Vanguard group | 1.38M | 1.97% | $55.66M |
| Horizon kinetics asset management | 1.38M | 1.97% | $55.66M |
| Alyeska investment group | 1.27M | 1.80% | $50.96M |
| Jpmorgan chase | 811.71K | 1.16% | $32.68M |
| North reef capital management lp | 725.80K | 1.03% | $29.22M |
| Blackrock funding, inc. /de | 707.77K | 1.01% | $28.49M |
| Caldwell investment management | 663.81K | 0.95% | $27.06M |
| Adage capital partners gp | 631.65K | 0.90% | $25.43M |
| Wellington management group llp | 583.12K | 0.83% | $23.48M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Caldwell investment management | 663.81K | 17.76% | $27.06M |
| Monashee investment management | 150.00K | 3.01% | $6.04M |
| Intrinsic edge capital management | 348.39K | 1.95% | $14.03M |
| North reef capital management lp | 725.80K | 1.37% | $29.22M |
| Mad river investors | 74.60K | 1.28% | $3.00M |
| Seven grand managers | 300.00K | 0.98% | $12.08M |
| Maltese capital management | 160.00K | 0.98% | $6.44M |
| Atlas wealth partners | 21.89K | 0.90% | $881.25K |
| Sandia investment management lp | 6.60K | 0.79% | $265.72K |
| Gillson capital lp | 206.90K | 0.72% | $8.33M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| T. rowe price investment management | 2.43M | 0.06% | 2.43M |
| Vanguard group | 1.38M | 0.00% | 1.38M |
| Horizon kinetics asset management | 1.38M | 0.68% | 1.38M |
| Alyeska investment group | 1.27M | 0.15% | 1.27M |
| Jpmorgan chase | 811.71K | 0.00% | 811.71K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Bellevue asset management | 40.00 | 0.00% | 40.00 |
| Global retirement partners | 81.00 | 0.00% | 81.00 |
| Washington trust advisors | 106.00 | 0.00% | 106.00 |
| Uniplan investment counsel | 119.00 | 0.00% | 119.00 |
| Comerica bank | 317.00 | - | 317.00 |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| T. rowe price investment management | 2.43M | 0.06% | 2.43M | $97.86M |
| Vanguard group | 1.38M | 0.00% | 1.38M | $55.66M |
| Horizon kinetics asset management | 1.38M | 0.68% | 1.38M | $55.66M |
| Alyeska investment group | 1.27M | 0.15% | 1.27M | $50.96M |
| Jpmorgan chase | 811.71K | 0.00% | 811.71K | $32.68M |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 33 | - | 6,876,749 | - | 9 | - | 33 | - | - | - |
MIAX Ownership FAQ
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