Comly Barbara J. sold $1.2M of MIAX
Comly Barbara J. (EVP, GC & Corporate Secretary) sold 28,000 shares of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) at $41.98 ($1.18M total) on 2026-07-13 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The newest concrete fact is the reported open-market sale of 28,000 shares by an EVP under a 10b5-1 plan; this typically has limited fundamental impact.
Market read
Traders may note the insider sale for sentiment monitoring, but there is no new operational or financial catalyst in the text.
What to watch
The article provides only the sale details; it does not indicate whether other insiders are selling, whether there are concurrent purchases, or any changes in company outlook.
Background
The article is an SEC Form 4 insider transaction disclosure for MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX).
Ticker impact
MIAX Form 4 shows EVP, GC and Corporate Secretary Barbara J. Comly sold 28,000 shares at $41.98 on 2026-07-13 under a 10b5-1 plan.
Likely minimal near-term price impact; any effect would be sentiment-driven rather than fundamental.
The filing is an insider transaction (not an earnings, guidance, deal, or regulatory event) and explicitly states a pre-arranged 10b5-1 plan, which typically reduces interpretive value.
Market effects
No sector-level implications; this is company-specific insider trading disclosure.
None indicated.
None indicated.
Counterpoint
Even with a 10b5-1 plan, repeated insider selling can sometimes coincide with broader internal caution, so traders may watch for follow-on filings.
Key entities
- issuerMIAX
Miami International Holdings, Inc., the company whose insider transaction was disclosed on Form 4.
- insiderBarbara J. Comly
EVP, GC and Corporate Secretary who sold 28,000 shares at $41.9800 under a 10b5-1 plan.


