Thomas P. Gallagher Net Worth
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Thomas P. Gallagher has an estimated net worth of at least $92.9 million*, as of March 11, 2026. They own 2.4 million shares of MIAX stock. They have sold 0 shares of MIAX stock since 2021, for an estimated $-276,000.
Thomas P. Gallagher $MIAX SEC Form 4 Insider Trading
Thomas P. Gallagher has filed a total of 1 insider trades in $MIAX since 2021. Their most recent trade was a purchase of 12,000 shares, made on Aug 13, 2025. Their largest trade was a purchase of 12,000 shares, made on Aug 13, 2025. We estimate that they now own 2.4 million shares of $MIAX, worth an estimated $93.2 million.
Insider Trading at $MIAX
There have been a total of 20 insider trades reported at $MIAX since 2021, with 88,919 shares purchased and 121,054 shares sold. The most active insider traders in $MIAX stock have been Edward Deitzel, Harish Jayabalan, and John Smollen. The most recent trade was a purchase of 7,200 shares reported by MURRAY STAHL (None), made on Mar 05, 2026.
History of Insider Stock Trades by Thomas P. Gallagher
| Company Ticker | Purchase / Sale | Shares | Date | Disclosed (EST) |
|---|---|---|---|---|
MIAX
|
Purchase | 12,000 | Aug 13, 2025 | Aug. 15, 2025, 4:48 p.m. |
$MIAX Executives and Stock Owners with Insider Trades
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Edward Deitzel, EVP, CRO, CCO MIAX Exchanges
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Harish Jayabalan, EVP, CISO and CRO
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John Smollen, EVP Traded Products & Relation
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Lance Emmons, EVP and CFO
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Thomas P. Gallagher, Chairman & CEO
*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.