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Disclosery

MIAX MIAMI INTL HLDGS INC

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Stock (common), issuer CIK 1438472

196 managers (203 13F filers) reported a position in MIAX shares at 2026-03-31, 50,238,821 shares in all. 74 filers opened a position and 35 filers sold out during the quarter.

Managers
196
13F filers
203
New
74
Added
84
Reduced
26
Sold out
35
Shares held by filers
50,238,821

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Schafer Douglas M. JRofficer (EVP and CIO)2026-10-02-40,000 S$33.34Form 4
Schafer Douglas M. JRofficer (EVP and CIO)2026-10-02+40,000 M$12Form 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
T. Rowe Price Investment Management, In…4,145,618$161M0.11%+1,119,90613F-HRTimeline
HORIZON KINETICS ASSET MANAGEMENT LLC3,451,549$134M1.46%+1,631,75113F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…3,296,346$128M0.17%+11,39413F-HRTimelineGroup
VANGUARD GROUP INCgroup of 6 filers holding3,020,940$118MnewTimeline
BlackRock, Inc.in group BlackRock, Inc.2,232,680$86.9M<0.01%+479,17313F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC1,607,780$62.6M0.04%+988,20013F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.1,585,003$61.7M0.01%+306,03713F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.1,447,454$56.3M0.16%+161,36813F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…1,246,999$48.5M0.07%+365,67013F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC1,221,485$47.5M0.02%-226,80813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,238,006$46.4M<0.01%+423,66613F-HR/ATimelineGroup
MORGAN STANLEYin group MORGAN STANLEY1,146,956$44.6M<0.01%+926,07713F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …1,112,261$43.8M0.07%+180,20813F-HRTimelineGroup
North Reef Capital Management LP1,014,274$39.5M1.36%-250,72613F-HRTimeline
Ghisallo Capital Management LLC1,000,000$38.9M1.07%+442,50013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/900,882$35.1M<0.01%+597,02113F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP893,718$34.8M0.03%+753,38713F-HRTimelineGroup
LORD, ABBETT & CO. LLC860,687$33.5M0.11%+201,01813F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC779,782$30.4M<0.01%+266,98513F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP712,329$27.7M<0.01%+135,94413F-HRTimelineGroup
BLAIR WILLIAM & CO/IL665,781$25.9M0.07%+10,93613F-HRTimeline
Caldwell Investment Management Ltd.663,810$24.9M9.77%-75,00013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS572,456$22.3M0.01%+381,43613F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources568,174$22.1M0.01%+141,02013F-HRTimelineGroup
SEVEN GRAND MANAGERS, LLC550,000$21.4M1.43%+150,00013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO526,363$20.5M0.02%+186,10813F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC518,701$20.2M0.02%+234,03713F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC509,452$19.8M<0.01%+61,91413F-HR/ATimelineGroup
Clearstead Advisors, LLC503,662$19.6M0.18%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…444,851$17.3M<0.01%-171,26713F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding436,515$17M+260,631Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC426,308$16.6M<0.01%-154,35713F-HRTimelineGroup
Driehaus Capital Management LLC396,698$15.4M0.11%-135,69313F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC389,570$15.2M0.01%-2,55213F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…341,309$13.3M<0.01%+67,40113F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.320,762$12.5M0.01%new13F-HRTimelineGroup
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …312,135$12.1M0.18%+91,36013F-HRTimelineGroup
ROYCE & ASSOCIATES LP309,276$12M0.12%+127,81013F-HRTimeline
Burkehill Global Management, LP290,000$11.3M0.56%013F-HRTimeline
Delta Global Management LP287,659$11.2M0.92%+8,63013F-HRTimeline
INTRINSIC EDGE CAPITAL MANAGEMENT LLC276,019$10.7M1.96%-46,50013F-HRTimeline
Penn Capital Management Company, LLC273,834$10.7M0.83%+21,70913F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC274,247$10.7M<0.01%+217,14313F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC271,500$10.6M0.02%+76,40113F-HRTimeline
Woodline Partners LP261,111$10.2M0.04%013F-HR/ATimeline
TUDOR INVESTMENT CORP ET AL259,765$10.1M0.05%+203,75913F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…240,000$9.34M0.02%+5,75613F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co237,309$9.24M<0.01%+50,24513F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP233,968$9.11M<0.01%+64,35413F-HRTimelineGroup
Nuveen, LLCin group TIAA231,908$9.03M<0.01%+192,79313F-HRTimelineGroup
Trexquant Investment LP215,549$8.39M0.06%new13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.201,145$7.83M0.01%+1,14513F-HRTimelineGroup
OCCUDO QUANTITATIVE STRATEGIES LP151,676$7.05M0.38%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND179,023$6.97M0.01%+16,83213F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …163,981$6.38M0.01%+17,03713F-HRTimelineGroup
AXIOM INVESTORS LLC /DE163,282$6.35M0.07%-79,89213F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/159,186$6.2M<0.01%+28,70013F-HRTimeline
Schonfeld Strategic Advisors LLC157,683$6.14M0.05%+57,68313F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …149,904$5.83M<0.01%new13F-HRTimelineGroup
SOROS FUND MANAGEMENT LLCin group SOROS FUND MANAGEMENT LLC132,600$5.16M0.07%-21,96013F-HRTimelineGroup
Portolan Capital Management, LLCin group Portolan Capital Management, …128,819$5.01M0.27%new13F-HRTimelineGroup
Prana Capital Management, LP123,353$4.8M0.15%+106,16513F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP122,619$4.77M0.01%new13F-HRTimelineGroup
Aquatic Capital Management LLC119,528$4.65M0.13%new13F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC119,419$4.65M<0.01%+17,03213F-HRTimelineGroup
Polar Capital Holdings Plcin group Polar Capital Holdings Plc118,674$4.62M0.02%-5,31813F-HRTimelineGroup
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP117,767$4.58M0.01%new13F-HRTimelineGroup
KING LUTHER CAPITAL MANAGEMENT CORP117,282$4.56M0.02%+13,46313F-HRTimeline
TD Asset Management Inc106,040$4.13M<0.01%+25,53213F-HRTimeline
CITIGROUP INCin group CITIGROUP INC105,421$4.1M<0.01%+93,48313F-HRTimelineGroup
Caprock Group, LLC100,585$3.91M0.1%+90,60813F-HRTimeline
Quantbot Technologies LP96,009$3.74M0.15%new13F-HRTimeline
MBL Wealth, LLC86,960$3.38M0.26%new13F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC85,621$3.33M0.01%new13F-HRTimeline
Qube Research & Technologies Ltd82,474$3.21M<0.01%new13F-HRTimeline
MAD RIVER INVESTORS81,250$3.16M1.14%+6,20013F-HRTimeline
WEXFORD CAPITAL LP80,400$3.13M0.52%new13F-HRTimeline
Coastal Bridge Advisors, LLC78,016$3.04M0.22%+60113F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp77,990$3.04M<0.01%+17,57213F-HRTimelineGroup
SPIREPOINT PRIVATE CLIENT, LLC68,883$2.68M0.25%new13F-HRTimeline
Bullseye Asset Management LLC65,928$2.57M1.49%+39,21713F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN61,186$2.38M<0.01%+25,59613F-HR/ATimelineGroup
one8zero8, LLC59,065$2.3M0.51%+65013F-HRTimeline
Quantinno Capital Management LP55,487$2.16M<0.01%new13F-HRTimeline
G2 Investment Partners Management LLC52,600$2.05M0.5%new13F-HRTimeline
Engineers Gate Manager LP51,736$2.01M0.03%new13F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP51,430$2M<0.01%new13F-HRTimelineGroup
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A51,002$1.98M0.01%013F-HRTimelineGroup
Atlas Brown,Inc.50,974$1.98M0.6%new13F-HRTimeline
Covalis Capital LLPin group Covalis Capital LLP50,000$1.95M0.12%+10,00013F-HRTimelineGroup
C2P Capital Advisory Group, LLC d.b.a. …46,948$1.83M0.1%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.44,942$1.75M<0.01%+4,72013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC40,222$1.57M<0.01%new13F-HRTimelineGroup
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…15,287$1.56M0.01%new13F-HRTimelineGroup
Entropy Technologies, LP40,076$1.56M0.07%new13F-HRTimeline
LPL Financial LLC39,932$1.55M<0.01%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD39,345$1.53M<0.01%-3,21113F-HRTimeline
NewEdge Advisors, LLC39,025$1.52M0.01%new13F-HR/ATimeline
Walleye Capital LLCin group Walleye Capital LLC38,522$1.5M0.01%+29,05913F-HR/ATimelineGroup
Moors & Cabot, Inc.38,512$1.5M0.06%+25,67213F-HRTimeline
Atlas Wealth Partners, LLC37,707$1.47M1.51%+13,23313F-HRTimeline
HRT FINANCIAL LP37,167$1.45M<0.01%new13F-HRTimeline
Pekin Hardy Strauss, Inc.35,090$1.37M0.14%-1,20013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…34,773$1.35M<0.01%-41,57813F-HRTimelineGroup
Swiss National Bank33,800$1.32M<0.01%+2,00013F-HRTimeline
ALLIANCEBERNSTEIN L.P.26,300$1.17M<0.01%+3,20013F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…29,636$1.15M0.01%-71,91613F-HRTimelineGroup
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC29,604$1.15M0.01%+14,52113F-HRTimelineGroup
RHUMBLINE ADVISERS29,210$1.14M<0.01%+1,86013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd29,167$1.14M0.02%-9,22313F-HRTimelineGroup
HighTower Advisors, LLC28,751$1.12M<0.01%+22,57913F-HRTimeline
Advisory Services Network, LLC26,682$1.04M0.01%+8,63213F-HRTimeline
Concentric Capital Strategies, LP25,753$1M0.09%new13F-HRTimeline
SIMPLEX TRADING, LLC25,016$974K0.03%+25,00813F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al24,500$954K0.01%+13,40013F-HRTimeline
Voleon Capital Management LP24,037$936K0.02%+9,51113F-HRTimeline
SIG BROKERAGE, LP23,189$903K0.26%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\20,421$795K<0.01%+4,17813F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC18,966$738K0.01%-266,30013F-HRTimelineGroup
Jain Global LLC17,143$667K0.01%new13F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP15,940$620K0.06%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…15,923$620K<0.01%-10713F-HRTimeline
Grandeur Peak Global Advisors, LLC15,771$614K0.14%-16,20613F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…15,275$595K<0.01%+2,77513F-HRTimeline
SALT Holding Corp.in group SALT Holding Corp.15,173$591K0.36%013F-HRTimelineGroup
IMC-Chicago, LLC14,577$567K0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…13,871$540K<0.01%+68813F-HRTimelineGroup
Vinva Investment Management Ltd9,801$536K0.01%new13F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers13,418$522K<0.01%new13F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP13,467$502K<0.01%new13F-HRTimelineGroup
Stratos Wealth Partners, LTD.group of 2 filers holding12,305$479KnewTimeline
Verdad Advisers, LP12,282$478K0.54%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc11,650$453K<0.01%-2,29113F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…11,545$449K<0.01%+61813F-HRTimelineGroup
Blackstone Inc.in group Blackstone Inc.11,508$448K<0.01%-63,49213F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Independent Solutions Wealth Management…11,056$430K0.06%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC10,903$424K0.01%new13F-HRTimeline
HMV Wealth Advisors, LLC10,683$416K0.2%new13F-HRTimeline
Man Group plcin group Man Group plc10,674$415K<0.01%new13F-HRTimelineGroup
Quinn Opportunity Partners LLC10,486$408K0.02%-78,02613F-HRTimeline
Focus Partners Advisor Solutions, LLCin group Focus Partners Wealth10,323$402K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA10,301$401K<0.01%+8,72413F-HRTimelineGroup
PROMETHIUM ADVISORS,LLC9,033$352K0.18%new13F-HRTimeline
Round Rock Advisors LLC8,983$350K0.05%+1,99513F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson8,600$334K<0.01%013F-HR/ATimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC8,476$330K<0.01%new13F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC8,307$323K<0.01%new13F-HRTimeline
J.W. COLE ADVISORS, INC.8,289$323K0.01%new13F-HRTimeline
MSRH, LLC7,200$280K0.25%new13F-HRTimeline
Police & Firemen's Retirement System of…6,912$269K<0.01%+96413F-HRTimeline
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…6,251$243K<0.01%new13F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP6,175$240K<0.01%+1,42513F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…5,534$215K<0.01%new13F-HRTimelineGroup
State of Wyoming4,542$177K0.02%+3,94813F-HRTimeline
STRS OHIO4,200$163K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS4,000$156K<0.01%+60013F-HRTimeline
SG Americas Securities, LLC3,537$138K<0.01%+1,16213F-HRTimeline
Battery Global Advisors, LLC3,125$122K0.07%new13F-HRTimeline
EMERALD MUTUAL FUND ADVISERS TRUSTin group EMERALD ADVISERS, LLC2,500$97.3K<0.01%013F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…2,170$84K<0.01%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,912$74.4K<0.01%013F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…1,576$61.3K<0.01%new13F-HRTimelineGroup
Caitong International Asset Management …1,380$53.7K0.01%-10113F-HRTimeline
HFM Investment Advisors, LLC1,301$50.6K0.02%new13F-HRTimeline
Quent Capital, LLC1,160$43.5K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,049$40.8K<0.01%+71113F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/700$28.1K<0.01%013F-HRTimelineGroup
BEACON INVESTMENT ADVISORY SERVICES, IN…700$27.2K<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…659$25.6K<0.01%+10713F-HRTimelineGroup
FMR LLCin group FMR LLC651$25.3K<0.01%-82413F-HRTimelineGroup
Covestor Ltd583$23K0.02%new13F-HRTimeline
Sterling Capital Management LLC464$18.1K<0.01%-25413F-HRTimeline
CWM, LLCin group CWM, LLC186$7.24K<0.01%new13F-HRTimelineGroup
Pinpoint Asset Management (Singapore) P…175$6.81K<0.01%new13F-HRTimeline
Cedar Mountain Advisors, LLC158$6.15K<0.01%new13F-HRTimeline
GAMMA Investing LLC136$5.29K<0.01%+9913F-HRTimeline
Parkside Financial Bank & Trust130$5.06K<0.01%new13F-HRTimeline
Arax Advisory Partners86$4.5K<0.01%new13F-HRTimeline
WPG Advisers, LLC81$3.15K<0.01%-3713F-HRTimeline
Quarry LP39$1.52K<0.01%new13F-HRTimeline
MCF Advisors LLC34$1.32K<0.01%new13F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…25$973<0.01%013F-HRTimeline
Allworth Financial LP15$584<0.01%new13F-HRTimeline
FINANCIAL CONSULATE, INC13$506<0.01%new13F-HRTimeline
Cornerstone Financial Management LLC12$467<0.01%new13F-HR/ATimeline
ROTHSCHILD INVESTMENT LLC11$428<0.01%new13F-HRTimeline
MAI Capital Management10$390<0.01%new13F-HRTimeline
Essential Partners LLC9$350<0.01%new13F-HRTimeline
IFP Advisors, Inc8$311<0.01%new13F-HRTimeline
CENTRAL TRUST Co7$273<0.01%013F-HRTimeline
Farther Finance Advisors, LLC5$197<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…5$195<0.01%new13F-HR/ATimelineGroup
Hughes Financial Services, LLC2$78<0.01%new13F-HRTimeline
Avion Wealth15$00%013F-HRTimelineValue filed as zero, left out of ratios.
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD0$00%013F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
Optiver Holding B.V.in group Optiver Holding B.V.152,596$5.94K+31113F-HR/ATimelineGroupValue about 1/1,000 of the price other filers imply, kept as filed and left out of ratios.

Events

  • Schafer Douglas M. JR reported transactions in MIAX shares with no net change in a Form 4 filed 2026-10-06. 0001628280-26-065268

    Accepted , ingested