Insiders who reported open-market trades in the last 12 months at the companies Shelly Brown 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 - $32.30M in MIAX purchases and sales in the last 12 months
Shelly Brown is a corporate insider, tracked as EVP, Chief Strategy Officer of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX). InsiderAlpha holds 16 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 Shelly Brown submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Shelly Brown been buying or selling stock?
Recorded transactions: 0 open-market purchases and 9 open-market sales ($4.98M) across all tracked filings.
Shelly Brown is EVP, Chief Strategy Officer of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX). 16 SEC Form 4 filings on record going back to 2025, most recently on 17 September 2026. Most recent open-market trade: sold $819K of MIAX on 17 September 2026. Lifetime open-market sales: $4.98M.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by Shelly Brown.
InsiderAlpha's records for Shelly Brown go back to 2025: 16 primary Form 4 filings, an average of 8.0 per year. 17 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
