Miami International (MIAX) risk and compliance officer exercises and sells 11K shares in one day
MIAX's EVP and CRO Edward Deitzel exercised 11,000 stock options at $12 each and sold the shares at an average price of $42.21 under a pre-set Rule 10b5-1 plan on September 3, 2026. The transaction was executed in multiple trades ranging from $42.00 to $42.32. Deitzel still holds 66,000 stock options after this transaction.
How this was made
The 30-second read
Why it matters
The sale is routine and unlikely to affect MIAX's valuation.
Market read
Limited relevance; primarily of interest to MIAX shareholders and compliance monitors.
What to watch
Potential future insider transactions could be monitored, but this single filing offers little insight.
Background
Form 4 filing discloses insider trades; MIAX is a U.S. exchange operator.
Ticker impact
EVP/Chief Risk Officer Edward Deitzel exercised 11,000 options at $12 and sold the shares at $42 under a 10b5-1 plan.
Minimal impact; price likely unchanged.
The transaction size ($464k) is low for a mid‑cap issuer and was pre‑planned, so market participants typically view it as routine.
Market effects
None; the filing does not affect the broader exchange or fintech sector.
No regional effect; confined to MIAX shareholders.
Low; the news is specific to a single US‑listed company.
Counterpoint
If the insider had a larger stake or sold at a discount, it could signal weakness, but here the sale is modest and pre‑planned.
Key entities
- ExecutiveEdward Deitzel
Executive Vice President and Chief Risk & Compliance Officer of MIAX.



