$ Value
$0
Shares
375,000
Price
$0
Filed
Aug 19
Insider
Name
Gallagher Thomas P.
Title
Chairman & CEO
CIK
0002080477
Roles
Transaction Details
Transaction Date
2025-08-15
Code
M
Table
Derivative
Ownership
Indirect
Equity Swap
No
Shares After
—
Footnotes
Represents 500 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. | Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC | Represents 573,963 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. | Includes 12,000 shares of common stock jointly with his spouse with right of survival | Represents 135,395 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. | The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. | The options are fully vested.
Filing Info
Gallagher Thomas P.'s History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2026-04-15 | MIAX | M | $840K |
| 2026-04-15 | MIAX | ▼ | $3.0M |
| 2026-04-15 | MIAX | ▼ | $4.5M |
| 2026-04-15 | MIAX | ▼ | $2.2M |
| 2026-04-15 | MIAX | M | $0 |
| 2026-03-30 | MIAX | F | $783K |
| 2025-12-23 | MIAX | G | — |
| 2025-08-26 | MIAX | F | $6.5M |
| 2025-08-15 | MIAX | C | — |
| 2025-08-15 | MIAX | C | — |
Other Insiders at MIAX (90d)
| Insider | Bought | Sold | Last |
|---|---|---|---|
| Teekell Judson Gray | — | $120K | 2026-04-02 |
|
Gallagher Thomas P.
Chairman & CEO
|
— | $9.7M | 2026-04-15 |
|
Brown Shelly
EVP, Chief Strategy Officer
|
— | $1.8M | 2026-04-08 |
| Beckelman John | — | — | 2026-04-09 |
|
Deitzel Edward
EVP, CRO, CCO MIAX Exchanges
|
— | $518K | 2026-04-08 |
|
Emmons Lance
EVP and CFO
|
— | — | 2026-03-30 |
|
Smollen John
EVP, New Product Development
|
— | — | 2026-03-30 |
|
Comly Barbara J.
EVP, GC & Corporate Secretary
|
— | $1.3M | 2026-04-15 |