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Disclosery

MIAX MIAMI INTL HLDGS INC

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Stock (common), issuer CIK 1438472

116 managers (116 13F filers) reported a position in MIAX shares at 2025-09-30, 25,501,353 shares in all. 115 filers opened a position and 0 filers sold out during the quarter.

Managers
116
13F filers
116
New
115
Added
0
Reduced
0
Sold out
0
Shares held by filers
25,501,353

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…3,284,852$132M0.19%new13F-HRTimelineGroup
T. Rowe Price Investment Management, In…2,430,616$97.9M0.06%new13F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC1,382,516$55.7M<0.01%new13F-HRTimelineGroup
HORIZON KINETICS ASSET MANAGEMENT LLC1,382,403$55.7M0.68%new13F-HRTimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.1,265,736$51M0.15%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC975,050$39.3M0.03%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO811,711$32.7M<0.01%new13F-HR/ATimelineGroup
North Reef Capital Management LP725,804$29.2M1.37%new13F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.707,771$28.5M<0.01%new13F-HRTimelineGroup
Caldwell Investment Management Ltd.663,810$27.1M17.76%new13F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…631,652$25.4M0.04%new13F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…583,120$23.5M<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY520,977$21M<0.01%new13F-HR/ATimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC489,598$19.7M0.02%new13F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.458,720$18.5M<0.01%new13F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …453,668$17.7M0.03%new13F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources432,272$17.4M<0.01%new13F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/398,782$16.1M<0.01%new13F-HRTimeline
BLAIR WILLIAM & CO/IL363,765$14.6M0.04%new13F-HRTimeline
INTRINSIC EDGE CAPITAL MANAGEMENT LLC348,392$14M2.13%new13F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC302,247$12.2M0.01%new13F-HRTimeline
SEVEN GRAND MANAGERS, LLC300,000$12.1M0.98%new13F-HRTimeline
LORD, ABBETT & CO. LLC299,183$12M0.04%new13F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…297,714$12M<0.01%new13F-HRTimelineGroup
Ghisallo Capital Management LLC275,000$11.1M0.36%new13F-HRTimeline
Woodline Partners LP261,111$10.5M0.05%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC255,282$10.3M0.01%new13F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.250,000$10.1M0.02%new13F-HRTimelineGroup
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …230,700$9.29M0.14%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC217,714$8.77M0.06%new13F-HRTimeline
Gillson Capital LP206,897$8.33M0.72%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC206,281$8.3M<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA200,000$8.05M<0.01%new13F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…200,000$8.05M0.01%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC193,191$7.78M<0.01%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/192,641$7.76M<0.01%new13F-HR/ATimelineGroup
Driehaus Capital Management LLC191,613$7.71M0.06%new13F-HRTimeline
Quinn Opportunity Partners LLC162,656$6.55M0.48%new13F-HRTimeline
MALTESE CAPITAL MANAGEMENT LLCin group MALTESE CAPITAL MANAGEMENT LLC160,000$6.44M0.98%new13F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC159,394$6.42M<0.01%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC158,482$6.38M0.01%new13F-HRTimelineGroup
Jain Global LLC153,815$6.19M0.08%new13F-HRTimeline
Monashee Investment Management LLC150,000$6.04M3.01%new13F-HRTimeline
Burkehill Global Management, LP150,000$6.04M0.34%new13F-HRTimeline
Freestone Grove Partners LP125,000$5.03M0.04%new13F-HRTimeline
LMR Partners LLPin group LMR Partners LLP109,795$4.42M0.06%new13F-HRTimelineGroup
SOROS FUND MANAGEMENT LLCin group SOROS FUND MANAGEMENT LLC104,260$4.2M0.07%new13F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO101,191$4.07M<0.01%new13F-HRTimelineGroup
Unisphere Establishmentin group Unisphere Establishment100,000$4.03M0.03%new13F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co88,434$3.56M<0.01%new13F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP77,960$3.14M<0.01%new13F-HRTimelineGroup
Coastal Bridge Advisors, LLC76,565$3.08M0.23%new13F-HRTimeline
MAD RIVER INVESTORS74,600$3M1.29%new13F-HRTimeline
TD Asset Management Inc63,460$2.55M<0.01%new13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP56,445$2.27M<0.01%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP54,604$2.2M0.03%new13F-HRTimeline
Delta Global Management LP50,498$2.03M0.15%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP50,011$2.01M<0.01%new13F-HRTimelineGroup
Blackstone Inc.in group Blackstone Inc.50,000$2.01M0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Harvey Partners, LLC50,000$2.01M0.18%new13F-HRTimeline
TUDOR INVESTMENT CORP ET AL45,533$1.83M0.01%new13F-HR/ATimeline
Interval Partners, LP44,357$1.79M0.04%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …42,994$1.73M<0.01%new13F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…41,145$1.66M0.01%new13F-HR/ATimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.32,751$1.32M<0.01%new13F-HRTimelineGroup
Grandeur Peak Global Advisors, LLC31,538$1.27M0.17%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP30,068$1.21M<0.01%new13F-HRTimelineGroup
Caisse de depot et placement du Quebec30,000$1.21M<0.01%new13F-HRTimeline
Qube Research & Technologies Ltd28,122$1.13M<0.01%new13F-HRTimeline
Davidson Kempner Capital Management LP26,000$1.05M0.01%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Pekin Hardy Strauss, Inc.25,650$1.03M0.1%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.25,063$1.01M<0.01%new13F-HRTimelineGroup
Hound Partners, LLCin group Hound Partners, LLC25,000$1.01M0.13%new13F-HRTimelineGroup
Weiss Asset Management LPin group Weiss Asset Management LP25,000$1.01M0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC24,483$986K<0.01%new13F-HRTimelineGroup
Atlas Wealth Partners, LLC21,889$881K0.9%new13F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP20,938$843K<0.01%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC18,966$764K0.01%new13F-HR/ATimelineGroup
Walleye Capital LLCin group Walleye Capital LLC17,131$690K0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC15,902$640K<0.01%new13F-HR/ATimelineGroup
SALT Holding Corp.in group SALT Holding Corp.15,173$611K0.77%new13F-HRTimelineGroup
Zimmer Partners, LP15,000$604K0.01%new13F-HRTimeline
Moors & Cabot, Inc.14,850$598K0.03%new13F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC12,896$519K<0.01%new13F-HRTimelineGroup
READYSTATE ASSET MANAGEMENT LP12,500$503K0.02%new13F-HRTimeline
OMERS ADMINISTRATION Corp11,400$459K<0.01%new13F-HRTimeline
Man Group plcin group Man Group plc11,008$443K<0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC10,300$415K<0.01%new13F-HRTimelineGroup
Caprock Group, LLC10,000$376K0.01%13F-HRTimeline
Engineers Gate Manager LP8,977$361K<0.01%new13F-HRTimeline
Quantessence Capital LLC8,507$342K0.11%new13F-HRTimeline
Centiva Capital, LP8,378$337K0.03%new13F-HRTimeline
Sompo Asset Management Co., Ltd.8,200$330K0.06%new13F-HRTimeline
UBS Group AGin group UBS Group AG7,967$321K<0.01%new13F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc7,500$302K<0.01%new13F-HRTimelineGroup
Limestone Investment Advisors LP6,900$278K0.12%new13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp6,635$267K<0.01%new13F-HRTimelineGroup
Sandia Investment Management LP6,600$266K0.79%new13F-HRTimeline
HRT FINANCIAL LP5,944$239K<0.01%new13F-HRTimeline
HighTower Advisors, LLC5,175$208K<0.01%new13F-HRTimeline
Texas Yale Capital Corp.5,000$201K0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN3,514$141K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,751$111K<0.01%new13F-HRTimelineGroup
EMERALD MUTUAL FUND ADVISERS TRUSTin group EMERALD ADVISERS, LLC2,500$101K0.01%new13F-HRTimelineGroup
Manchester Capital Management LLC732$29.5K<0.01%new13F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/700$28.7K<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC504$20.3K<0.01%new13F-HRTimelineGroup
Game Plan Financial Advisors, LLC500$20.1K0.01%new13F-HRTimeline
COMERICA BANK317$12.8K<0.01%new13F-HRTimeline
Uniplan Investment Counsel, Inc.119$4.79K<0.01%new13F-HRTimeline
Washington Trust Advisors, Inc.106$4.27K<0.01%new13F-HRTimeline
Global Retirement Partners, LLC81$3.26K<0.01%new13F-HRTimeline
FMR LLCin group FMR LLC75$3.02K<0.01%new13F-HRTimelineGroup
BELLEVUE ASSET MANAGEMENT, LLC40$1.61K<0.01%new13F-HRTimeline
Avion Wealth15$00%new13F-HRTimelineValue filed as zero, left out of ratios.
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD0$00%new13F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, 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