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MIAX research notebook

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SEC submissions · retrieved 2026-10-23 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-10-02 · 0001628280-26-065268

  2. 4 · Ownership change

    Report date 2026-09-25 · 0001628280-26-063831

  3. 4 · Ownership change

    Report date 2026-09-16 · 0002080506-26-000027

  4. 4 · Ownership change

    Report date 2026-09-11 · 0002080506-26-000025

  5. 4 · Ownership change

    Report date 2026-09-02 · 0002080878-26-000016

  6. 4 · Ownership change

    Report date 2026-09-03 · 0002080671-26-000016

  7. 4 · Ownership change

    Report date 2026-09-03 · 0002080477-26-000018

  8. 4 · Ownership change

    Report date 2026-09-02 · 0002079445-26-000017

  9. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-054575

  10. 8-K · Current report

    Report date 2026-08-05 · 0001438472-26-000040 · Items 2.02,9.01

  11. 8-K · Current report

    Report date 2026-07-20 · 0001628280-26-049014 · Items 8.01

  12. 8-K · Current report

    Report date 2026-06-17 · 0001438472-26-000036 · Items 3.02

  13. 8-K · Current report

    Report date 2026-06-16 · 0001438472-26-000032 · Items 5.07

  14. 8-K · Current report

    Report date 2026-06-15 · 0001438472-26-000030 · Items 5.02

  15. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001628280-26-032565

  16. 8-K · Current report

    Report date 2026-05-06 · 0001628280-26-031291 · Items 2.02,9.01

  17. DEF 14A · Proxy statement

    Report date 2026-06-16 · 0001628280-26-027312

  18. 8-K · Current report

    Report date 2026-04-23 · 0001628280-26-027311 · Items 5.02

  19. 8-K · Current report

    Report date 2026-04-07 · 0001438472-26-000026 · Items 5.02

  20. 8-K · Current report

    Report date 2026-03-24 · 0001628280-26-021455 · Items 5.02

  21. 10-K · Annual report

    Report date 2025-12-31 · 0001438472-26-000023

  22. 8-K · Current report

    Report date 2026-02-25 · 0001438472-26-000019 · Items 3.02

  23. 8-K · Current report

    Report date 2026-02-25 · 0001438472-26-000017 · Items 2.02,9.01

  24. 8-K · Current report

    Report date 2026-02-18 · 0001438472-26-000012 · Items 3.02

  25. 8-K · Current report

    Report date 2026-02-09 · 0001438472-26-000010 · Items 3.02

  26. 8-K · Current report

    Report date 2026-01-20 · 0001438472-26-000008 · Items 8.01,9.01

  27. 8-K · Current report

    Report date 2025-12-15 · 0001628280-25-057039 · Items 3.02,8.01

  28. 8-K · Current report

    Report date 2025-11-25 · 0001438472-25-000016 · Items 8.01,9.01

  29. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001438472-25-000011

  30. 8-K · Current report

    Report date 2025-11-05 · 0001628280-25-049650 · Items 2.02,9.01

  31. 8-K · Current report

    Report date 2025-10-03 · 0001628280-25-044597 · Items 5.02

  32. 8-K · Current report

    Report date 2025-08-18 · 0001438472-25-000003 · Items 1.02

  33. 8-K · Current report

    Report date 2025-08-15 · 0001628280-25-040532 · Items 3.02,8.01

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-23 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 29 transaction rows29SGrant / award: 0 transaction rows0AExercise / conversion: 66 transaction rows66MTax / exercise payment: 4 transaction rows4FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

99 matching transaction rows. Showing 51 to 99.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-08-04
2026-08-06
Gallagher Thomas P.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock48334.045.69
2026-08-04
2026-08-06
Gallagher Thomas P.
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
48334.00.0
2026-08-04
2026-08-06
Schafer Douglas M. JR
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock48000.012.0
2026-08-04
2026-08-06
Schafer Douglas M. JR
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock48000.045.71
2026-08-04
2026-08-06
Schafer Douglas M. JR
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
48000.00.0
2026-08-04
2026-08-06
Teekell Judson Gray
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock3000.045.79
2026-07-15
2026-07-16
Schwarzkopf Cynthia
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock5000.012.0
2026-07-15
2026-07-16
Schwarzkopf Cynthia
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock5000.042.0
2026-07-15
2026-07-16
Schwarzkopf Cynthia
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
5000.00.0
2026-07-13
2026-07-14
Comly Barbara J.
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock28000.012.0
2026-07-13
2026-07-14
Comly Barbara J.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock28000.041.98
2026-07-13
2026-07-14
Comly Barbara J.
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
28000.00.0
2026-07-13
2026-07-14
Gallagher Thomas P.
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock70000.012.0
2026-07-13
2026-07-14
Gallagher Thomas P.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock70000.042.52
2026-07-13
2026-07-14
Gallagher Thomas P.
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
70000.00.0
2026-07-08
2026-07-09
BROWN DAVID AF · Tax / exercise payment
Disposed
Common Stock171.043.72
2026-07-07
2026-07-07
Gallagher Thomas P.
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock28228.012.0
2026-07-07
2026-07-07
Gallagher Thomas P.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock28228.042.27
2026-07-07
2026-07-07
Gallagher Thomas P.
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
28228.00.0
2026-07-06
2026-07-07
Gallagher Thomas P.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock41772.042.09
2026-07-06
2026-07-07
Gallagher Thomas P.
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock41772.012.0
2026-07-06
2026-07-07
Gallagher Thomas P.
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
41772.00.0
2026-07-06
2026-07-07
Jayabalan Harish
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock834.012.0
2026-07-06
2026-07-07
Jayabalan Harish
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock20000.042.12
2026-07-06
2026-07-07
Jayabalan Harish
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock2499.012.0
2026-07-06
2026-07-07
Jayabalan Harish
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock16667.012.0
2026-07-06
2026-07-07
Jayabalan Harish
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
16667.00.0
2026-07-06
2026-07-07
Jayabalan Harish
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
834.00.0
2026-07-06
2026-07-07
Jayabalan Harish
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
2499.00.0
2026-07-06
2026-07-07
Deitzel Edward
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock7333.012.0
2026-07-06
2026-07-07
Deitzel Edward
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock11000.042.04
2026-07-06
2026-07-07
Deitzel Edward
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock3667.012.0
2026-07-06
2026-07-07
Deitzel Edward
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
7333.00.0
2026-07-06
2026-07-07
Deitzel Edward
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
3667.00.0
2026-07-06
2026-07-07
Brown Shelly
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock16000.042.13
2026-07-06
2026-07-07
Brown Shelly
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock16000.012.0
2026-07-06
2026-07-07
Brown Shelly
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
16000.00.0
2026-07-02
2026-07-07
Teekell Judson Gray
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock3000.040.0
2026-07-02
2026-07-07
Eckert Kurt M.
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock5250.012.0
2026-07-02
2026-07-07
Eckert Kurt M.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock5250.039.35
2026-07-02
2026-07-07
Eckert Kurt M.
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
5250.00.0
2026-07-02
2026-07-07
Comly Barbara J.
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock28000.012.0
2026-07-02
2026-07-07
Comly Barbara J.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock28000.041.22
2026-07-02
2026-07-07
Comly Barbara J.
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
28000.00.0
2026-07-02
2026-07-07
Schafer Douglas M. JR
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock6000.012.0
2026-07-02
2026-07-07
Schafer Douglas M. JR
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock42000.012.0
2026-07-02
2026-07-07
Schafer Douglas M. JR
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock48000.041.22
2026-07-02
2026-07-07
Schafer Douglas M. JR
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
6000.00.0
2026-07-02
2026-07-07
Schafer Douglas M. JR
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Nonqualified Stock Option (Right to Buy)
Derivative security
42000.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-10-23 · 1658 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001438472MIAMI INTERNATIONAL HOLDINGS, INC.

No parent relationship is available in this import; this is not proof of independence.

Legal Entity Identifier
254900TREUDBWGLAP788
GLEIF legal name
Miami International Holdings, Inc.
Entity / LEI registration status
ACTIVE / ISSUED
Reference data updated
2026-05-25T09:24:17Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • MIHI · alias · wikidata
  • Miami International Holdings · alias · wikidata
  • MIAMI INTERNATIONAL HOLDINGS INC · former SEC name · 2008-06-23 to 2008-06-23
Explore headquarters map ↗

Revenue in constant purchasing power

USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$1.14B$1.22B
2023-12-31$1.04B$1.15B

Bureau of Labor Statistics · retrieved 2026-10-23 · 9 selected series; gaps remain missing

Explore the CPI history ↗