Jayabalan Harish sold $842K of MIAX
Jayabalan Harish (EVP, CISO and CRO) sold 20,000 shares of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) at $42.12 ($0.84M total) on 2026-07-06 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The disclosed sale is under a pre-arranged Rule 10b5-1 plan, which generally lowers the informational content for near-term price discovery.
Market read
Traders may log the transaction for sentiment/positioning, but it is unlikely to drive a fundamental repricing by itself.
What to watch
The article lacks context on total compensation, remaining plan schedule, and whether sales are part of a broader multi-tranche program; those factors can materially change interpretation.
Background
The article is a primary-source SEC Form 4 insider transaction for MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX).
Ticker impact
Form 4 shows EVP/CISO/CRO Jayabalan Harish sold 20,000 MIAX shares on 2026-07-06 at $42.12 via a 10b5-1 plan.
Low near-term impact; any reaction is likely muted and short-lived.
The filing is an open-market sale under a pre-arranged 10b5-1 plan, which typically reduces interpretive value versus discretionary selling.
Market effects
No sector read-across; this is company-specific insider transaction disclosure.
None indicated.
None indicated.
Counterpoint
Even with 10b5-1, repeated insider selling can coincide with executives de-risking ahead of perceived risk, so traders may watch for follow-on filings.
Key entities
- issuerMIAMI INTERNATIONAL HOLDINGS, INC.
Subject of the Form 4 insider transaction; EVP/CISO/CRO sold shares via open-market sale under a 10b5-1 plan.
- insiderJayabalan Harish
EVP, CISO and CRO who reported the sale of 20,000 shares at $42.12 on 2026-07-06.


