Miami International (MIAX) EVP sells 28,000 shares under Rule 10b5-1 trading plan
Rhea-AI Filing Summary
Miami International Holdings, Inc. executive Barbara J. Comly, EVP, GC & Corporate Secretary, exercised nonqualified stock options for 28,000 shares of common stock at an exercise price of $12.00 per share on July 13, 2026 and sold 28,000 shares in open-market transactions at a weighted average price of $41.98 per share, within a range of $41.40 to $43.52. The sale was executed under a previously established Rule 10b5-1 Plan adopted on December 18, 2025. Following these transactions, Comly holds 882,984 shares of common stock directly, and the exercised options are fully vested and now fully exercised.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Net Seller: 28,000 shares ($1,175,440)
Net Sell
3 txns
Insider
Comly Barbara J.
Role
EVP, GC & Corporate Secretary
Sold
28,000 shs ($1.18M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Nonqualified Stock Option (Right to Buy) | 28,000 | $0.00 | -- |
| Exercise | Common Stock | 28,000 | $12.00 | $336K |
| Sale | Common Stock | 28,000 | $41.98 | $1.18M |
Holdings After Transaction:
Nonqualified Stock Option (Right to Buy) — 0 shares (Direct);
Common Stock — 910,984 shares (Direct)
Footnotes (1)
- This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025. This transaction was executed in multiple trades throughout the day at prices ranging from $41.40 to $43.52. 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. The options are fully vested.
Key Figures
Shares sold: 28,000 shares
Weighted average sale price: $41.98 per share
Sale price range: $41.40–$43.52 per share
+5 more
8 metrics
Shares sold
28,000 shares
Common stock sold in open-market transactions on July 13, 2026
Weighted average sale price
$41.98 per share
Average price for the 28,000 shares of common stock sold
Sale price range
$41.40–$43.52 per share
Price range of multiple trades executed throughout July 13, 2026
Options exercised
28,000 options
Nonqualified stock options exercised into common stock on July 13, 2026
Option exercise price
$12.00 per share
Exercise price of the nonqualified stock options
Shares owned after transactions
882,984 shares
Direct common stock holdings of Barbara J. Comly following the reported trades
Option expiration date
August 2, 2026
Expiration date of the exercised nonqualified stock options
Rule 10b5-1 plan adoption date
December 18, 2025
Date Barbara J. Comly adopted the trading plan used for the sale
Key Terms
Rule 10b5-1 Plan, Nonqualified Stock Option, weighted average sales price, derivative security
4 terms
Rule 10b5-1 Plan regulatory
"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
"security_title: Nonqualified Stock Option (Right to Buy)"
weighted average sales price financial
"The price reported above reflects the weighted average sales price"
derivative security financial
"transaction_code_description: Exercise or conversion of derivative security"
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 stock sale did Miami International Holdings (MIAX) report for Barbara J. Comly?
Barbara J. Comly sold 28,000 shares of Miami International Holdings common stock in open-market transactions. The weighted average sale price was $41.98 per share on July 13, 2026, and the trades were executed under a previously established Rule 10b5-1 trading plan.
Did Barbara J. Comly exercise stock options in the latest MIAX insider activity?
Yes. Barbara J. Comly exercised 28,000 nonqualified stock options for Miami International common stock at an exercise price of $12.00 per share. The options were fully vested and carried an expiration date of August 2, 2026, and were fully exercised in this transaction.
Was the MIAX insider sale by Barbara J. Comly made under a Rule 10b5-1 plan?
Yes. The stock sale was effected pursuant to a previously established Rule 10b5-1 Plan. That trading plan was adopted by Barbara J. Comly on December 18, 2025, indicating the transactions were pre-arranged rather than initiated opportunistically based on short-term market conditions.
What option grant was involved in Barbara J. Comly’s MIAX transactions?
The transactions involved a Nonqualified Stock Option covering 28,000 underlying shares of Miami International common stock with an exercise price of $12.00 per share. The options were fully vested, had an expiration date of August 2, 2026, and were completely exercised.