Miami International Holdings (MIAX) insider purchase and derivative holdings
Rhea-AI Filing Summary
Miami International Holdings, Inc. reported an insider-related purchase of 2,439 shares of common stock on 12/12/2025 at $41 per share. The transaction was reported as an indirect acquisition through Horizon Kinetics Asset Management LLC, bringing the total indirectly beneficially owned common shares to 4,560,364.
The report also lists fully vested stock options held directly by the insider for 7,500, 10,000, 14,331 and 2,500 underlying shares at exercise prices between $16.14 and $25.98, as well as several currently vested warrants held indirectly through Horizon Kinetics Asset Management LLC for 24,878, 27,561, 21,290 and 38,927 underlying shares. Murray Stahl, who leads Horizon Kinetics Asset Management LLC, disclaims beneficial ownership except for any pecuniary interest.
Positive
- None.
Negative
- None.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Purchase | Common Stock | 2,439 | $41.00 | $100K |
| holding | Options | -- | -- | -- |
| holding | Options | -- | -- | -- |
| holding | Options | -- | -- | -- |
| holding | Options | -- | -- | -- |
| holding | Warrants | -- | -- | -- |
| holding | Warrants | -- | -- | -- |
| holding | Warrants | -- | -- | -- |
| holding | Warrants | -- | -- | -- |
Footnotes (1)
- Murray Stahl serves as Chairman, Chief Executive Officer, and Chief Investment Officer of Horizon Kinetics Asset Management LLC ("HKAM"), which manages funds and accounts (the "Managed Accounts") that hold securities of the Issuer. Mr. Stahl does not exercise investment discretion with respect to the securities of the Issuer that are beneficially owned by the Managed Accounts. Mr. Stahl disclaims beneficial ownership over the securities reported, except to the extent of his pecuniary interest therein, if any. The filing of this Form shall not be deemed an admission that the Mr. Stahl is the beneficial owner of such securities for purposes of Section 16 or any other purpose. Includes 5,000 shares of Series B Preferred Stock that have been converted into Common Stock on a one-for-one basis upon the closing of the Company's initial public offering and which have no expiration date and 14,998 shares of Non-Voting 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 given to Mr. Stahl are fully vested. The Warrants are currently vested and presently exercisable until the expiration date show.
FAQ
What insider transaction was reported for MIAX (Miami International Holdings)?
An insider group associated with Horizon Kinetics Asset Management LLC reported purchasing 2,439 shares of Miami International Holdings common stock on 12/12/2025 at a price of $41 per share, as an indirect acquisition.
Who is the reporting person in this MIAX insider transaction and what is the relationship to the issuer?
The report identifies a relationship as Director and 10% Owner of Miami International Holdings. The explanation notes that Murray Stahl serves as Chairman, Chief Executive Officer, and Chief Investment Officer of Horizon Kinetics Asset Management LLC, which manages accounts holding the issuer’s securities.
Are the MIAX options and warrants reported in this insider filing vested?
According to the explanation, the options given to Murray Stahl are fully vested, and the warrants reported are currently vested and presently exercisable until their respective expiration dates.
Does Murray Stahl claim full beneficial ownership of all reported MIAX securities?
No. The explanation states that Murray Stahl disclaims beneficial ownership of the securities held by the managed accounts, except to the extent of his pecuniary interest, if any, and that the report is not an admission of beneficial ownership for Section 16 or other purposes.