MIAMI INTERNATIONAL HOLDINGS, INC.·4

Mar 24, 5:28 PM ET

Brown Shelly 4

4 · MIAMI INTERNATIONAL HOLDINGS, INC. · Filed Mar 24, 2026

Research Summary

AI-generated summary of this filing

Updated

MIAX EVP Shelly Brown Sells 25,932 Shares

What Happened Shelly Brown, Executive Vice President and Chief Strategy Officer of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX), sold 25,932 shares in an open-market transaction on March 23, 2026. The weighted-average sale price was $39.33 per share (range $38.98–$39.80 across multiple trades), producing gross proceeds of approximately $1,019,906. This was a sale (routine disposition) executed under a previously established Rule 10b5-1 trading plan.

Key Details

  • Transaction date: 2026-03-23; filing date: 2026-03-24 (timely filing).
  • Shares sold: 25,932; weighted-average price: $39.33; price range: $38.98–$39.80.
  • Gross proceeds: ~$1,019,906.
  • Shares owned after transaction: not reported in the Form 4 provided.
  • Footnotes: (F1) Sale was effected under a Rule 10b5-1 plan adopted Dec 22, 2025. (F2) Executed in multiple trades; the filer can provide per-trade counts/prices on request.
  • Transaction code: S = Sale.

Context Sales made pursuant to a Rule 10b5-1 plan are typically pre-scheduled and often routine, and therefore may not indicate a change in the insider’s view of the company. For retail investors, purchases generally carry more informational weight than routine sales; this filing documents a planned disposition rather than an opportunistic open-market buy.

Insider Transaction Report

Form 4
Period: 2026-03-23
Brown Shelly
EVP, Chief Strategy Officer
Transactions
  • Sale

    Common Stock

    [F1][F2]
    2026-03-23$39.33/sh25,932$1,019,906299,197 total
Footnotes (2)
  • [F1]This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 22, 2025.
  • [F2]This transaction was executed in multiple trades throughout the day at prices ranging from $38.98 to $39.80. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.
Signature
/s/Alessandra Maria Corona Henriques, Attorney-in-Fact|2026-03-24

Documents

1 file
  • 4
    wk-form4_1774387722.xmlPrimary

    FORM 4