Jayabalan Harish sold $918K of MIAX
Jayabalan Harish (EVP, CISO and CRO) sold 20,000 shares of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) at $45.90 ($0.92M total) on 2026-08-04 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The disclosed event is an open-market sale by a senior executive under a pre-arranged 10b5-1 plan; it does not include guidance, earnings, regulatory actions, or deal terms.
Market read
Traders may note the insider sale for sentiment, but the 10b5-1 structure and lack of other catalysts make it low-signal.
What to watch
The article does not state whether the insider’s remaining holdings changed materially versus prior plans, nor does it provide context on total planned sales.
Background
The article is an SEC Form 4 insider transaction disclosure for Miami International Holdings, Inc. (MIAX).
Ticker impact
SEC Form 4 shows MIAX EVP, CISO and CRO Jayabalan Harish sold 20,000 shares at $45.90 on 2026-08-04 under a 10b5-1 plan.
Likely limited near-term impact; any effect would be sentiment-only and typically fades.
The filing is an open-market sale by an insider, explicitly tied to a pre-arranged 10b5-1 plan, and the article provides no accompanying company-specific catalyst.
Market effects
No clear sector read-through from a single 10b5-1 insider sale.
None indicated.
None indicated.
Counterpoint
Insider sales can still coincide with private information, but the 10b5-1 designation reduces that signal.
Key entities
- issuerMIAX
Miami International Holdings, Inc., the company whose insider transaction is disclosed.
- insiderJayabalan Harish
EVP, CISO and CRO who sold 20,000 shares under a 10b5-1 plan.
