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Miami International (MIAX) Institutional Ownership

Miami International logo
$42.97 +2.35 (+5.79%)
As of 03:58 PM Eastern
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Institutional Ownership Changes (13F Filings) for Miami International (NYSE:MIAX)

Number of
Institutional Buyers
(last 12 months)
147
Total
Institutional Inflows
(last 12 months)
$1.44B
Number of
Institutional Sellers
(last 12 months)
18
Total
Institutional Outflows
(last 12 months)
$164.33M
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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
9/2/2026 Allianz Asset Management GmbH359,261$13.35M0.0%N/A0.362%
8/26/2026 HighTower Advisors LLC112,298$4.17M0.0%+290.6%0.113%
8/24/2026 California State Teachers Retirement System824,023$30.62M0.0%+5,075.0%0.830%
8/22/2026 J Digital 6 LLC1,807,234$67.16M39.7%N/A1.821%
8/20/2026 Grandeur Peak Global Advisors LLC19,018$707K0.2%+20.6%0.019%
8/20/2026 Alyeska Investment Group L.P.848,750$31.54M0.1%-41.4%0.855%
8/20/2026 Northwestern Mutual Wealth Management Co.151,179$5.62M0.0%N/A0.152%
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC17,824$662K0.0%+36.0%0.018%
8/19/2026 Goodwin Investment Advisory28,025$1.04M2.1%N/A0.028%
8/19/2026 Wellington Management Group LLP262,170$9.74M0.0%-41.1%0.264%
8/18/2026 Grandeur Peak Global Advisors LLC19,018$707K0.1%N/A0.019%
8/18/2026 Coastal Bridge Advisors LLC183,761$6.83M0.4%N/A0.185%
8/18/2026Jefferies Financial Group Inc.10,968$408K0.0%N/A0.011%
8/17/2026 Philadelphia Financial Management of San Francisco LLC223,715$8.31M1.7%N/A0.225%
8/17/2026 Bank of America Corp DE856,980$31.85M0.0%N/A0.864%
8/15/2026 Jupiter Topco LLC8,600$320K0.0%N/A0.009%
8/14/2026 Canada Pension Plan Investment Board44,500$1.65M0.0%N/A0.045%
8/14/2026 Legal & General Group Plc19,530$726K0.0%N/A0.020%
8/14/2026 The Manufacturers Life Insurance Company177,273$6.59M0.0%N/A0.179%
8/14/2026 Sone Capital Management LLC138,903$5.16M0.4%N/A0.140%
8/14/2026 Algert Global LLC13,150$489K0.0%N/A0.013%
8/12/2026 Northwestern Mutual Wealth Management Co.151,179$5.62M0.0%N/A0.152%
8/11/2026 Caldwell Investment Management Ltd.600,000$22.28M14.6%N/A0.632%
8/10/2026 Tocqueville Asset Management L.P.338,225$12.57M0.2%N/A0.356%
8/10/2026 one8zero8 LLC27,965$1.04M0.2%N/A0.029%
8/7/2026 BlackRock Inc.5,071,754$188.47M0.0%N/A5.344%
8/7/2026 Deutsche Bank AG75,052$2.79M0.0%N/A0.079%
8/6/2026 Bank of New York Mellon Corp220,387$8.19M0.0%N/A0.232%
8/6/2026 Focus Partners Advisor Solutions LLC136,736$5.08M0.0%N/A0.144%
8/6/2026 State of Wyoming9,313$346K0.0%N/A0.010%
7/10/2026 Handelsbanken Fonder AB20,000$743K0.0%N/A0.021%
7/9/2026 Sapient Capital LLC26,612$989K0.0%N/A0.027%
7/9/2026 Atlas Brown Inc.44,906$1.67M0.4%-11.9%0.047%
7/8/2026 Assenagon Asset Management S.A.297,832$11.07M0.0%N/A0.314%
6/3/2026 NewEdge Advisors LLC39,025$1.52M0.0%N/A0.041%
5/19/2026 Bank of America Corp DE900,882$35.06M0.0%+196.5%0.949%
5/18/2026 Royal Bank of Canada10,301$401K0.0%+553.2%0.011%
5/16/2026 The Manufacturers Life Insurance Company163,981$6.38M0.0%+11.6%0.173%
5/16/2026 Quantinno Capital Management LP55,487$2.16M0.0%N/A0.058%
5/15/2026 Delta Global Management LP287,659$11.20M0.9%+3.1%0.303%
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5/15/2026 North Reef Capital Management LP1,014,274$39.48M1.4%-19.8%1.069%
5/15/2026 Entropy Technologies LP40,076$1.56M0.1%N/A0.042%
5/14/2026 Healthcare of Ontario Pension Plan Trust Fund240,000$9.34M0.0%+2.5%0.253%
5/14/2026 Renaissance Technologies LLC271,500$10.57M0.0%+39.2%0.286%
5/14/2026 Arrowstreet Capital Limited Partnership149,904$5.83M0.0%N/A0.158%
5/14/2026 Sei Investments Co.526,363$20.49M0.0%+54.7%0.555%
5/14/2026 Walleye Capital LLC38,522$1.50M0.0%+307.1%0.041%
5/14/2026 State of Wyoming4,542$177K0.0%+664.6%0.005%
5/7/2026 Swiss National Bank33,800$1.32M0.0%+6.3%0.036%
5/6/2026 Allspring Global Investments Holdings LLC1,112,261$43.79M0.1%+19.3%1.173%
5/5/2026 Bank of New York Mellon Corp77,990$3.04M0.0%+29.1%0.082%
5/1/2026 Fifth Third Bancorp1,576$61K0.0%N/A0.002%
4/30/2026 Atlas Wealth Partners LLC37,707$1.47M1.5%+54.1%0.041%
4/27/2026 New York State Teachers Retirement System2,170$84K0.0%N/A0.002%
4/23/2026 Mad River Investors81,250$3.16M1.1%+8.3%0.089%
4/17/2026 Atlas Brown Inc.50,974$1.98M0.6%N/A0.056%
4/16/2026 SG Americas Securities LLC3,537$138K0.0%+48.9%0.004%
3/3/2026 Caitong International Asset Management Co. Ltd1,481$66K0.0%N/A0.002%
2/19/2026 T. Rowe Price Investment Management Inc.3,025,712$134.28M0.1%+24.5%3.716%
2/19/2026 Invesco Ltd.1,278,966$56.76M0.0%+178.8%1.571%
2/18/2026 Delta Global Management LP279,029$12.38M0.6%+452.6%0.343%
2/18/2026 Coastal Bridge Advisors LLC77,415$3.44M0.3%+1.1%0.095%
2/18/2026 XTX Topco Ltd38,390$1.70M0.0%N/A0.047%
2/18/2026 one8zero8 LLC58,415$2.59M0.6%N/A0.072%
2/18/2026 VARCOV Co.22,389$994K0.4%N/A0.027%
2/18/2026 Wellington Management Group LLP616,118$27.34M0.0%+5.7%0.757%
2/18/2026 Symmetry Investments LP22,000$976K0.1%N/A0.027%
2/18/2026 Tudor Investment Corp ET AL56,006$2.49M0.0%+23.0%0.069%
2/18/2026 Prana Capital Management LP17,188$763K0.0%N/A0.021%
2/18/2026 Quadrature Capital Ltd31,915$1.42M0.0%N/A0.039%
2/18/2026 Millennium Management LLC284,664$12.63M0.0%+79.6%0.350%
2/18/2026Janus Henderson Group PLC8,600$382K0.0%N/A0.011%
2/18/2026 Element Capital Management LLC27,855$1.24M0.6%N/A0.034%
2/18/2026 Armistice Capital LLC5,947$264K0.0%N/A0.007%
2/17/2026 Schonfeld Strategic Advisors LLC100,000$4.44M0.0%-54.1%0.123%
2/17/2026 Burkehill Global Management LP290,000$12.87M0.8%+93.3%0.356%
2/17/2026Sandia Investment Management LP13,000$577K1.4%+97.0%0.016%
2/17/2026 Unisphere Establishment135,000$5.99M0.0%+35.0%0.166%
2/17/2026 North Reef Capital Management LP1,265,000$56.14M2.3%+74.3%1.553%
2/17/2026 Jump Financial LLC285,266$12.66M0.2%+1,404.1%0.350%
2/17/2026 Price T Rowe Associates Inc. MD130,486$5.79M0.0%-67.3%0.160%
2/17/2026 T. Rowe Price Investment Management Inc.510,027$22.64M0.0%-79.0%0.626%
2/17/2026 Osaic Holdings Inc.40,222$1.79M0.0%+22.8%0.049%
2/17/2026 Advisory Services Network LLC18,050$801K0.0%N/A0.022%
2/17/2026 Ghisallo Capital Management LLC557,500$24.74M1.1%+102.7%0.685%
2/17/2026 Adage Capital Partners GP L.L.C.881,329$39.11M0.1%+39.5%1.082%
2/17/2026 California State Teachers Retirement System16,030$711K0.0%N/A0.020%
2/17/2026 Russell Investments Group Ltd.76,351$3.39M0.0%N/A0.094%
2/17/2026 State of Wisconsin Investment Board42,556$1.89M0.0%N/A0.052%
2/17/2026 Fred Alger Management LLC15,083$669K0.0%-38.4%0.019%
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2/17/2026 ExodusPoint Capital Management LP10,970$487K0.0%-62.9%0.013%
2/17/2026 Royal Bank of Canada1,577$69K0.0%-99.2%0.002%
2/17/2026 Blair William & Co. IL654,845$29.06M0.1%+80.0%0.804%
2/17/2026 Polar Capital Holdings Plc123,992$5.50M0.0%N/A0.152%
2/17/2026 Delta Global Management LP279,029$12.38M0.6%+452.6%0.343%
2/17/2026 Maltese Capital Management LLC38,675$1.72M0.3%-75.8%0.047%
2/16/2026 Maven Securities LTD69,920$3.10M0.1%N/A0.086%
2/16/2026 Healthcare of Ontario Pension Plan Trust Fund234,244$10.40M0.0%+17.1%0.288%
2/16/2026 Barclays PLC57,104$2.53M0.0%+259.1%0.070%
2/16/2026 Bullseye Asset Management LLC26,711$1.19M0.6%N/A0.033%


MIAX Institutional Ownership - Frequently Asked Questions

During the previous two years, 150 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 147 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 35,657,233 shares in the last 24 months. This purchase volume represents approximately $1.44B in transactions.

Of the 18 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 3,865,231 shares in the last 24 months. This volume of shares sold represents approximately $164.33M 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 9/2/2026. New 13F filings are added each quarter as they're published.
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