Teekell Judson Gray sold $137K of MIAX
Teekell Judson Gray sold 3,000 shares of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) at $45.79 ($0.14M total) on 2026-08-04 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The newest fact is the director’s disclosed open-market sale of 3,000 shares at $45.7900, totaling $137,370, with remaining holdings of 72,251 shares.
Market read
This is a routine insider-sale disclosure with limited incremental trading signal due to the 10b5-1 structure.
What to watch
Traders may over-weight insider sales; the filing does not include any new company fundamentals, guidance, or regulatory developments.
Background
The article is a SEC Form 4 insider transaction disclosure for Miami International Holdings, Inc. (MIAX).
Ticker impact
MIAX director Teekell Judson Gray filed a Form 4 selling 3,000 shares at $45.7900 on 2026-08-04 under a 10b5-1 plan.
Low likelihood of a sustained price move; any impact is likely short-lived and sentiment-driven.
The filing is a disclosed open-market sale by a director, explicitly under a pre-arranged 10b5-1 plan, which typically reduces interpretive weight versus discretionary selling.
Market effects
No clear sector read-through from a single director 10b5-1 sale.
None indicated.
None indicated.
Counterpoint
Because the sale is under a 10b5-1 plan, it may reflect scheduled liquidity needs rather than bearish expectations.
Key entities
- issuerMIAX
Miami International Holdings, Inc., the company whose director filed the Form 4.
- insiderTeekell Judson Gray
Director of MIAX who sold 3,000 shares under a pre-arranged 10b5-1 plan.
