MIAX exec exercises options, sells 12,335 shares
MIAMI INTERNATIONAL HOLDINGS, INC. executive Edward Deitzel exercised fully vested stock options and sold the resulting shares in pre-planned trades.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
Form Type
4
Rhea-AI Filing Summary
MIAMI INTERNATIONAL HOLDINGS, INC. executive Edward Deitzel exercised fully vested stock options and sold the resulting shares in pre-planned trades. Over April 7–8, he exercised options to acquire a total of 12,335 shares of common stock at $12.00 per share, then sold the same 12,335 shares in open-market transactions at prices around $42.00–$42.13. These transactions were executed under a previously established Rule 10b5-1 trading plan adopted on December 30, 2025, and Deitzel continues to hold 116,221 shares of common stock directly after the activity.
Insider Trade Summary 10b5-1
Exercise and Sale: 12,335 shares ($370K approx. pre-tax spread)
Exercise and Sale
9 txns
Insider
Deitzel Edward
Role
EVP, CRO, CCO MIAX Exchanges
Sold
12,335 shs ($518K)
Approx. gross sale proceeds
$518K
Approx. exercise cost
$148K
Approx. pre-tax spread
$370K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Nonqualified Stock Option (Right to Buy) | 7,572 | $0.00 | $0.00 |
| Exercise | Common Stock | 7,572 | $12.00 | $91K |
| Sale | Common Stock | 7,572 | $42.02 | $318K |
| Exercise | Nonqualified Stock Option (Right to Buy) | 762 | $0.00 | $0.00 |
| Exercise | Nonqualified Stock Option (Right to Buy) | 4,001 | $0.00 | $0.00 |
| Exercise | Common Stock | 762 | $12.00 | $9K |
| Sale | Common Stock | 762 | $42.00 | $32K |
| Exercise | Common Stock | 4,001 | $12.00 | $48K |
| Sale | Common Stock | 4,001 | $42.00 | $168K |
Holdings After Transaction:
Nonqualified Stock Option (Right to Buy) — 29,333 contracts (Direct);
Common Stock — 116,221 shares (Direct)
Footnotes (3)
- F1. This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 30, 2025.
- F2. This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.13. The price reported above reflects the weighted average sale 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: 12,335 shares
Exercise price: $12.00 per share
Shares sold: 12,335 shares
+3 more
6 metrics
Options exercised
12,335 shares
Nonqualified stock options exercised on April 7–8, 2026
Exercise price
$12.00 per share
Price for exercised MIAX nonqualified stock options
Shares sold
12,335 shares
Open-market sales following option exercises
Sale price range
$42.00–$42.13
Weighted-average sale prices for MIAX common stock
Post-transaction holdings
116,221 shares
MIAX common stock held directly after transactions
Rule 10b5-1 plan adoption date
December 30, 2025
Date Deitzel’s pre-planned trading program was adopted
Key Terms
Nonqualified Stock Option, Rule 10b5-1 Plan, weighted average sale price, open-market sale, +1 more
5 terms
Nonqualified Stock Option financial
"security_title: "Nonqualified Stock Option (Right to Buy)""
A nonqualified stock option (NQSO) is a company grant that gives an individual the right to buy shares at a set price but does not meet special tax rules for incentive stock options; when exercised the difference between the market price and the exercise price is treated as ordinary income for the recipient and as a tax-deductible expense for the company. It matters to investors because NQSOs affect an employee’s after-tax proceeds, the company’s reported expenses, and potential share dilution—think of it like a cash bonus that converts into stock but is taxed as regular pay when you take it.
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.
weighted average sale price financial
"The price reported above reflects the weighted average sale price."
open-market sale financial
"transaction_action: "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
fully vested financial
"The options are fully vested."
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did MIAX executive Edward Deitzel report in this Form 4 filing?
Edward Deitzel reported exercising stock options and selling the resulting MIAX common shares. He exercised options for 12,335 shares at $12.00 each, then sold the same 12,335 shares in open-market trades around $42.00–$42.13 over April 7–8, 2026.
At what price did Edward Deitzel exercise his MIAX stock options?
He exercised his MIAX nonqualified stock options at an exercise price of $12.00 per share. These option exercises on April 7–8, 2026 converted derivative positions into 12,335 shares of common stock, which were then sold in open-market transactions at prices around $42.
What type of securities did Edward Deitzel exercise in this MIAX filing?
He exercised fully vested nonqualified stock options for MIAX common stock. On April 7–8, 2026, these options were converted into 12,335 common shares at an exercise price of $12.00 per share before the shares were sold in open-market transactions.
AI-generated analysis. How Rhea-AI works. Not financial advice.
Accepted by SEC EDGAR
Learn about SEC filing dates