Summary
Updated Aug 31, 2026
Edward Deitzel is EVP, CRO, CCO MIAX Exchanges of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX). 12 SEC Form 4 filings on record going back to 2025, most recently on 6 August 2026. Most recent open-market trade: sold $504K of MIAX on 6 August 2026. Lifetime open-market purchases: $2K. Lifetime open-market sales: $2.47M.
Recent Transactions
20Every recent SEC Form 4 transaction Edward Deitzel has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Edward Deitzel go back to 2025: 12 primary Form 4 filings, an average of 6.0 per year. The typical open-market purchase is $2K (1 buy totaling $2K). The largest single buy on record is $2K of MIAX in 2025. Sales side: 7 recorded sales totaling $2.47M, so the filing history runs sell-heavy by dollar value. 23 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Edward Deitzel files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Thomas P. Gallagher - $30.31M of MIAX open-market activity in the last 12 months
- Douglas M. Schafer Jr. - $10.40M of MIAX open-market activity in the last 12 months
- Murray Stahl - $8.70M of MIAX open-market activity in the last 12 months
- Barbara J. Comly - $8.18M of MIAX open-market activity in the last 12 months
- Shelly Brown - $4.16M of MIAX open-market activity in the last 12 months
- Lance Emmons - $3.47M of MIAX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Edward Deitzel?
Edward Deitzel is a corporate insider, tracked as EVP, CRO, CCO MIAX Exchanges of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX). InsiderAlpha holds 12 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Edward Deitzel submitted recently?
5 primary Form 4 filings in the last 90 days, covering 1 company.
Has Edward Deitzel been buying or selling stock?
Recorded transactions: 1 open-market purchase ($2K) and 7 open-market sales ($2.47M) across all tracked filings.
Where can I see all of Edward Deitzel's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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