MIAMI International (MIAX) exec exercises options and sells 20,000 shares
Rhea-AI Filing Summary
MIAMI International Holdings executive Jayabalan Harish, EVP, CISO and CRO, exercised nonqualified stock options for 20,000 common shares on August 4, 2026, at strike prices of $12.00 and $15.22, then sold 20,000 common shares at a weighted average price of $45.90 in open-market trades between $45.04 and $46.78, all pursuant to a previously established Rule 10b5-1 Plan adopted on March 9, 2026. The options exercised were fully vested.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and Sale: 20,000 shares ($659K approx. pre-tax spread)
Exercise and Sale
5 txns
Insider
Jayabalan Harish
Role
EVP, CISO and CRO
Sold
20,000 shs ($918K)
Approx. gross sale proceeds
$918K
Approx. exercise cost
$259K
Approx. pre-tax spread
$659K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Nonqualified Stock Option (Right to Buy) F1, F3 | 14,168 | $0.00 | $0.00 |
| Exercise | Nonqualified Stock Option (Right to Buy) F1, F3 | 5,832 | $0.00 | $0.00 |
| Exercise | Common Stock F1 | 14,168 | $12.00 | $170K |
| Exercise | Common Stock F1 | 5,832 | $15.22 | $89K |
| Sale | Common Stock F1, F2 | 20,000 | $45.90 | $918K |
Holdings After Transaction:
Nonqualified Stock Option (Right to Buy) — 17,598 shares (Direct);
Common Stock — 78,065 shares (Direct)
Footnotes (3)
- F1. This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.
- F2. This transaction was executed in multiple trades throughout the day at prices ranging from $45.04 to $46.78. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F3. The options are fully vested.
Key Figures
Options exercised – first grant: 14,168 shares
Options exercised – second grant: 5,832 shares
Total shares sold: 20,000 shares
+3 more
6 metrics
Options exercised – first grant
14,168 shares
Nonqualified stock options exercised at $12.0000 per share on August 4, 2026
Options exercised – second grant
5,832 shares
Nonqualified stock options exercised at $15.2200 per share on August 4, 2026
Total shares sold
20,000 shares
Common stock sold on August 4, 2026 following option exercises
Weighted average sale price
$45.90 per share
Open-market sales executed between $45.04 and $46.78
Sale price range
$45.04–$46.78 per share
Price range of multiple trades composing the reported sale
Rule 10b5-1 plan adoption date
March 9, 2026
Adoption date of the trading plan governing these transactions
Key Terms
Rule 10b5-1 Plan, Nonqualified Stock Option, weighted average sales price, derivative security
4 terms
Rule 10b5-1 Plan financial
"This transaction was effected pursuant to a previously established Rule 10b5-1 Plan"
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
Nonqualified Stock Option financial
""Nonqualified Stock Option (Right to Buy)" appears as the security title"
weighted average sales price financial
"The price reported above reflects the weighted average sales price"
derivative security financial
""Exercise or conversion of derivative security" describes the transaction code"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What insider transactions did MIAX executive Jayabalan Harish report on August 4, 2026?
He reported exercising nonqualified stock options into 20,000 MIAMI International Holdings common shares, then selling 20,000 shares the same day. The Form 4 shows two option exercises coded “M” and one common stock sale coded “S” on August 4, 2026.
What options did MIAX officer Jayabalan Harish exercise in this Form 4?
He exercised two grants of Nonqualified Stock Options for a total of 20,000 shares: 14,168 options with a $12.00 exercise price expiring July 31, 2029, and 5,832 options with a $15.22 exercise price expiring November 30, 2030. The options were fully vested.
Were the MIAX transactions by Jayabalan Harish under a Rule 10b5-1 trading plan?
Yes. All reported transactions were effected pursuant to a previously established Rule 10b5-1 Plan. A footnote explains that the plan was adopted by Jayabalan Harish on March 9, 2026, and the Form 4’s Rule 10b5-1 checkbox is marked as affirmed.
What securities are involved in Jayabalan Harish’s MIAX Form 4 filing?
The filing covers Nonqualified Stock Options (Right to Buy) that convert into MIAMI International Holdings common stock, and the resulting Common Stock itself. Two derivative transactions (option exercises) and one non-derivative sale transaction are reported for August 4, 2026.
How does the MIAX Form 4 describe the sale price reported for Jayabalan Harish?
The Form 4 reports a $45.90 per-share sale price as a weighted average sales price. A footnote clarifies that the sale occurred in multiple trades at prices ranging from $45.04 to $46.78, and detailed trade data is available upon request.