secwatch.observer — SEC 8-K summary
======================================

Issuer:     MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX)
CIK:        0001438472
Form:       8-K
Filed at:   2026-03-26T23:59:59+00:00
Accession:  0001628280-26-021455
Event type: leadership
Sentiment:  neutral
Materiality: 0.35
Item codes: 5.02
LLM model:  deepseek-v4-flash:cloud@v2

Director Lee Becker not standing for reelection; Jill E. Sommers appointed to board
--------------------------------------------------------------------------------

- Lee Becker will not stand for reelection at the 2026 Annual Meeting; no disagreement with company.
- Jill E. Sommers elected to fill a vacancy effective March 25, 2026, term expires at Annual Meeting.
- Ms. Sommers to receive same compensation as other non-employee directors; not on any committees.
- No family relationships or transactions with company; standard indemnification agreement executed.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1438472/000162828026021455/0001628280-26-021455-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1438472/000162828026021455/miax-20260324.htm
  HTML page:      https://secwatch.observer/filing/0001628280-26-021455

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer