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Miami International (MIAX) Institutional Ownership

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$29.73 +0.18 (+0.61%)
As of 03:27 PM Eastern
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Institutional Ownership Changes (13F Filings) for Miami International (NYSE:MIAX)

Number of
Institutional Buyers
(last 12 months)
149
Total
Institutional Inflows
(last 12 months)
$1.45B
Number of
Institutional Sellers
(last 12 months)
19
Total
Institutional Outflows
(last 12 months)
$165.07M
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MIAX Institutional Buying and Selling by Quarter

Miami International Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/10/2026Atlas Brown Inc.44,568$1.49M0.4%-0.8%0.045%
9/9/2026BlueCrest Capital Management Ltd200,000$7.43M0.2%N/A0.202%
9/9/2026Engineers Gate Manager LP32,087$1.19M0.0%-38.0%0.032%
9/9/2026NewEdge Advisors LLC681,610$25.33M0.1%+1,646.6%0.687%
9/9/2026One Charles Private Wealth Services LLC118,419$4.40M1.0%N/A0.119%
9/2/2026Allianz Asset Management GmbH359,261$13.35M0.0%N/A0.362%
8/26/2026HighTower Advisors LLC112,298$4.17M0.0%+290.6%0.113%
8/22/2026J Digital 6 LLC1,807,234$67.16M39.7%N/A1.821%
8/20/2026Grandeur Peak Global Advisors LLC19,018$707K0.2%+20.6%0.019%
8/20/2026Alyeska Investment Group L.P.848,750$31.54M0.1%-41.4%0.855%
8/20/2026Northwestern Mutual Wealth Management Co.151,179$5.62M0.0%N/A0.152%
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC17,824$662K0.0%+36.0%0.018%
8/19/2026Goodwin Investment Advisory28,025$1.04M2.1%N/A0.028%
8/19/2026Wellington Management Group LLP262,170$9.74M0.0%-41.1%0.264%
8/18/2026Grandeur Peak Global Advisors LLC19,018$707K0.1%N/A0.019%
8/18/2026Coastal Bridge Advisors LLC183,761$6.83M0.4%N/A0.185%
8/18/2026Jefferies Financial Group Inc.10,968$408K0.0%N/A0.011%
8/17/2026Philadelphia Financial Management of San Francisco LLC223,715$8.31M1.7%N/A0.225%
8/17/2026Bank of America Corp DE856,980$31.85M0.0%N/A0.864%
8/15/2026Jupiter Topco LLC8,600$320K0.0%N/A0.009%
8/14/2026Canada Pension Plan Investment Board44,500$1.65M0.0%N/A0.045%
8/14/2026Legal & General Group Plc19,530$726K0.0%N/A0.020%
8/14/2026The Manufacturers Life Insurance Company177,273$6.59M0.0%N/A0.179%
8/14/2026Sone Capital Management LLC138,903$5.16M0.4%N/A0.140%
8/14/2026Algert Global LLC13,150$489K0.0%N/A0.013%
8/12/2026Northwestern Mutual Wealth Management Co.151,179$5.62M0.0%N/A0.152%
8/11/2026Caldwell Investment Management Ltd.600,000$22.28M14.6%N/A0.632%
8/10/2026Tocqueville Asset Management L.P.338,225$12.57M0.2%N/A0.356%
8/10/2026one8zero8 LLC27,965$1.04M0.2%N/A0.029%
8/7/2026BlackRock Inc.5,071,754$188.47M0.0%N/A5.344%
8/7/2026Deutsche Bank AG75,052$2.79M0.0%N/A0.079%
8/6/2026Bank of New York Mellon Corp220,387$8.19M0.0%N/A0.232%
8/6/2026Focus Partners Advisor Solutions LLC136,736$5.08M0.0%N/A0.144%
8/6/2026State of Wyoming9,313$346K0.0%N/A0.010%
7/10/2026Handelsbanken Fonder AB20,000$743K0.0%N/A0.021%
7/9/2026Sapient Capital LLC26,612$989K0.0%N/A0.027%
7/9/2026Atlas Brown Inc.44,906$1.67M0.4%-11.9%0.047%
7/8/2026Assenagon Asset Management S.A.297,832$11.07M0.0%N/A0.314%
6/3/2026NewEdge Advisors LLC39,025$1.52M0.0%N/A0.041%
5/19/2026Bank of America Corp DE900,882$35.06M0.0%+196.5%0.949%
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5/18/2026Royal Bank of Canada10,301$401K0.0%+553.2%0.011%
5/16/2026The Manufacturers Life Insurance Company163,981$6.38M0.0%+11.6%0.173%
5/16/2026Quantinno Capital Management LP55,487$2.16M0.0%N/A0.058%
5/15/2026Delta Global Management LP287,659$11.20M0.9%+3.1%0.303%
5/15/2026North Reef Capital Management LP1,014,274$39.48M1.4%-19.8%1.069%
5/15/2026Entropy Technologies LP40,076$1.56M0.1%N/A0.042%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund240,000$9.34M0.0%+2.5%0.253%
5/14/2026Renaissance Technologies LLC271,500$10.57M0.0%+39.2%0.286%
5/14/2026Arrowstreet Capital Limited Partnership149,904$5.83M0.0%N/A0.158%
5/14/2026Sei Investments Co.526,363$20.49M0.0%+54.7%0.555%
5/14/2026Walleye Capital LLC38,522$1.50M0.0%+307.1%0.041%
5/14/2026State of Wyoming4,542$177K0.0%+664.6%0.005%
5/7/2026Swiss National Bank33,800$1.32M0.0%+6.3%0.036%
5/6/2026Allspring Global Investments Holdings LLC1,112,261$43.79M0.1%+19.3%1.173%
5/5/2026Bank of New York Mellon Corp77,990$3.04M0.0%+29.1%0.082%
5/1/2026Fifth Third Bancorp1,576$61K0.0%N/A0.002%
4/30/2026Atlas Wealth Partners LLC37,707$1.47M1.5%+54.1%0.041%
4/27/2026New York State Teachers Retirement System2,170$84K0.0%N/A0.002%
4/23/2026Mad River Investors81,250$3.16M1.1%+8.3%0.089%
4/17/2026Atlas Brown Inc.50,974$1.98M0.6%N/A0.056%
4/16/2026SG Americas Securities LLC3,537$138K0.0%+48.9%0.004%
3/3/2026Caitong International Asset Management Co. Ltd1,481$66K0.0%N/A0.002%
2/19/2026T. Rowe Price Investment Management Inc.3,025,712$134.28M0.1%+24.5%3.716%
2/19/2026Invesco Ltd.1,278,966$56.76M0.0%+178.8%1.571%
2/18/2026Delta Global Management LP279,029$12.38M0.6%+452.6%0.343%
2/18/2026Coastal Bridge Advisors LLC77,415$3.44M0.3%+1.1%0.095%
2/18/2026XTX Topco Ltd38,390$1.70M0.0%N/A0.047%
2/18/2026one8zero8 LLC58,415$2.59M0.6%N/A0.072%
2/18/2026VARCOV Co.22,389$994K0.4%N/A0.027%
2/18/2026Wellington Management Group LLP616,118$27.34M0.0%+5.7%0.757%
2/18/2026Symmetry Investments LP22,000$976K0.1%N/A0.027%
2/18/2026Tudor Investment Corp ET AL56,006$2.49M0.0%+23.0%0.069%
2/18/2026Prana Capital Management LP17,188$763K0.0%N/A0.021%
2/18/2026Quadrature Capital Ltd31,915$1.42M0.0%N/A0.039%
2/18/2026Millennium Management LLC284,664$12.63M0.0%+79.6%0.350%
2/18/2026Janus Henderson Group PLC8,600$382K0.0%N/A0.011%
2/18/2026Element Capital Management LLC27,855$1.24M0.6%N/A0.034%
2/18/2026Armistice Capital LLC5,947$264K0.0%N/A0.007%
2/17/2026Schonfeld Strategic Advisors LLC100,000$4.44M0.0%-54.1%0.123%
2/17/2026Burkehill Global Management LP290,000$12.87M0.8%+93.3%0.356%
2/17/2026Sandia Investment Management LP13,000$577K1.4%+97.0%0.016%
2/17/2026Unisphere Establishment135,000$5.99M0.0%+35.0%0.166%
2/17/2026North Reef Capital Management LP1,265,000$56.14M2.3%+74.3%1.553%
2/17/2026Jump Financial LLC285,266$12.66M0.2%+1,404.1%0.350%
2/17/2026Price T Rowe Associates Inc. MD130,486$5.79M0.0%-67.3%0.160%
2/17/2026T. Rowe Price Investment Management Inc.510,027$22.64M0.0%-79.0%0.626%
2/17/2026Osaic Holdings Inc.40,222$1.79M0.0%+22.8%0.049%
2/17/2026Advisory Services Network LLC18,050$801K0.0%N/A0.022%
2/17/2026Ghisallo Capital Management LLC557,500$24.74M1.1%+102.7%0.685%
2/17/2026Adage Capital Partners GP L.L.C.881,329$39.11M0.1%+39.5%1.082%
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2/17/2026California State Teachers Retirement System16,030$711K0.0%N/A0.020%
2/17/2026Russell Investments Group Ltd.76,351$3.39M0.0%N/A0.094%
2/17/2026State of Wisconsin Investment Board42,556$1.89M0.0%N/A0.052%
2/17/2026Fred Alger Management LLC15,083$669K0.0%-38.4%0.019%
2/17/2026ExodusPoint Capital Management LP10,970$487K0.0%-62.9%0.013%
2/17/2026Royal Bank of Canada1,577$69K0.0%-99.2%0.002%
2/17/2026Blair William & Co. IL654,845$29.06M0.1%+80.0%0.804%
2/17/2026Polar Capital Holdings Plc123,992$5.50M0.0%N/A0.152%
2/17/2026Delta Global Management LP279,029$12.38M0.6%+452.6%0.343%
2/17/2026Maltese Capital Management LLC38,675$1.72M0.3%-75.8%0.047%


MIAX Institutional Ownership - Frequently Asked Questions

During the previous two years, 153 institutional investors and hedge funds held shares of Miami International. The most heavily invested institutionals were BlackRock Inc. ($188.47M), T. Rowe Price Investment Management Inc. ($134.28M), Vanguard Group Inc. ($85.58M), Horizon Kinetics Asset Management LLC ($80.76M), J Digital 6 LLC ($67.16M), Invesco Ltd. ($56.76M), and Allspring Global Investments Holdings LLC ($43.79M).Learn more on Miami International's institutional investors.

Of the 149 institutional investors that purchased Miami International's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($5.07M), Vanguard Group Inc. ($1.93M), J Digital 6 LLC ($1.81M), Bank of America Corp DE ($1.65M), JPMorgan Chase & Co. ($1.63M), Caldwell Investment Management Ltd. ($1.34M), and Alyeska Investment Group L.P. ($1.29M).

Institutional investors have bought a total of 35,810,137 shares in the last 24 months. This purchase volume represents approximately $1.45B in transactions.

Of the 19 institutional investors that sold Miami International's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($1.92M), Alyeska Investment Group L.P. ($598.70K), Price T Rowe Associates Inc. MD ($268.30K), North Reef Capital Management LP ($250.73K), Royal Bank of Canada ($198.42K), Wellington Management Group LLP ($182.68K), and Maltese Capital Management LLC ($121.33K).

Institutional investors have sold a total of 3,885,218 shares in the last 24 months. This volume of shares sold represents approximately $165.07M in transactions.


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Institutional ownership data for NYSE:MIAX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/10/2026. New 13F filings are added each quarter as they're published.
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