Miami International executive exercises 8,333 options
Miami International Holdings, Inc. (MIAX) executive exercised 8,333 options at $12 per share on 09/25/2026, according to an SEC Form 4 filing. The options were incentive stock options with an expiration date of 10/12/2027.
How this was made
The 30-second read
Why it matters
The insider purchase may be interpreted as a vote of confidence, but the modest scale limits market impact.
Market read
New insider transaction provides fresh data for traders monitoring MIAX, but limited actionable insight.
What to watch
Potential upcoming corporate actions or compensation plans not disclosed could affect future insider activity.
Background
Form 4 filings disclose insider transactions under Section 16 of the Securities Exchange Act. This filing reports an executive's option exercise for Miami International Holdings, Inc. (MIAX).
Ticker impact
Executive EVP, CISO and CRO exercised 8,333 stock options at $12 per share, increasing ownership to 86,398 shares.
likely slight upward pressure as the market prices in insider confidence
The transaction size is modest relative to float, but insider status and option exercise can be viewed as a bullish signal.
Market effects
Minimal impact on the broader exchange‑traded fund and market‑making sector.
Limited to U.S. investors tracking MIAX.
None
Counterpoint
The small size of the purchase may be inconsequential; price could remain unchanged.
Key entities
- companyMiami International Holdings, Inc.
Issuer of the securities; ticker MIAX.
- personAlessandra Maria Corona Henriques
Executive (EVP, CISO and CRO) filing the Form 4.

