Welcome to our dedicated page for Miami Intl Hldg SEC filings (Ticker: MIAX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The SEC filings of Miami International Holdings, Inc. (NYSE: MIAX) provide detailed information about its capital markets activity, segment reporting and regulatory disclosures as an exchange operator. Through documents such as Form S-1 and Form 8-K, the company describes its business structure, operating segments and equity transactions.
In its Form S-1 registration statement, Miami International Holdings identifies operating segments associated with options, equities, futures and international markets, along with a corporate/non-segment category. The filing references revenue categories including transaction and clearing fees, access fees, market data fees and other products and services, giving investors insight into how the company characterizes its exchange-related activities.
Recent Form 8-K filings highlight specific events. An 8-K dated December 15, 2025 discloses unregistered sales of equity securities, including common stock issued upon conversion of a convertible promissory note and upon warrant exercises, and notes that aggregate unregistered issuances exceeded a threshold relative to shares outstanding as of a prior date. The same filing also describes the completion of a public secondary offering in which existing stockholders sold shares of common stock, with the company stating that it did not sell shares or receive proceeds.
Other 8-K reports address topics such as quarterly financial results, changes in the board of directors and the announcement of an agreement to sell a majority stake in MIAX Derivatives Exchange (MIAXdx) to Robinhood Markets, Inc. in partnership with Susquehanna International Group. These filings illustrate how the company uses current reports to communicate material events, corporate governance changes and strategic transactions.
On Stock Titan’s MIAX filings page, users can review these SEC documents as they are made available through EDGAR. AI-powered tools can help summarize lengthy forms such as S-1 and 8-K, highlight key segment and revenue disclosures, and surface notable equity issuance and offering details, making it easier to understand the regulatory information Miami International Holdings provides.
MIAMI INTERNATIONAL HOLDINGS, INC. Chairman & CEO Thomas P. Gallagher received equity awards consisting of restricted stock units and stock options on June 16, 2026. He was granted 232,977 RSUs, which vest in three equal annual installments from June 16, 2027 through June 16, 2029, subject to continued service.
He also received a nonqualified stock option for 237,175 shares and an incentive stock option for 2,485 shares, each with an exercise price of $40.24 per share and expiring on June 15, 2036. These options vest annually in tranches over the same three-year schedule. Following the RSU grant, Gallagher directly holds 743,939 shares of common stock.
Miami International Holdings, Inc. held its Annual Meeting of Stockholders on June 16, 2026. Stockholders elected fifteen directors to serve until the 2027 annual meeting, with each nominee receiving over 63 million votes in favor.
On a non-binding advisory basis, stockholders approved the Company’s executive compensation, with 49,020,028 votes for, 17,331,303 against and 972,646 abstentions. In the advisory vote on how often to hold future say‑on‑pay votes, 36,641,740 votes favored a three‑year frequency, 29,354,149 favored one year, and 391,017 favored two years, with 937,071 abstentions. Stockholders also ratified KPMG LLP as independent registered public accounting firm for the fiscal year ending December 31, 2026, with 74,776,726 votes for, 4,868 against and 171,700 abstentions.
MIAMI INTERNATIONAL HOLDINGS director David A. Brown reported equity-based compensation awards. He acquired 4,970 restricted stock units (RSUs) of common stock that fully vested on the grant date, with each RSU delivering one share. He also received 2,267 additional RSUs that vest on the last business day immediately preceding the 2027 annual meeting of stockholders, subject to continued service. In addition, Brown was granted 5,142 nonqualified stock options with an exercise price of $40.24 per share, expiring on June 15, 2036. These options vest in three tranches during 2026: 2,571 shares on June 30, 1,285 shares on September 30, and 1,286 shares on December 31, contingent on continued service.
MIAMI INTERNATIONAL HOLDINGS, INC. director Talal Jassim Al-Bahar reported two stock-based compensation grants. On June 16, 2026, he acquired 4,970 fully vested restricted stock units, each representing one common share. On June 15, 2026, he received 2,267 RSUs that vest before the 2027 annual meeting, subject to continued service. Following these awards, he directly holds 40,891 common shares.
MIAMI INTERNATIONAL HOLDINGS, INC. director Kenneth W. Lozier reported equity compensation awards rather than open-market trades. He received 4,970 fully vested restricted stock units and an additional 2,267 RSUs that vest before the 2027 annual meeting, each RSU equal to one common share. He was also granted a nonqualified stock option for 2,571 shares at an exercise price of $40.24 per share, vesting in staged amounts during 2026. Following these grants, he directly holds 8,237 shares of common stock and 2,571 stock options.
MIAMI INTERNATIONAL HOLDINGS, INC. director Jill E. Sommers reported equity awards in the form of common stock, restricted stock units (RSUs), and stock options. She acquired 4,970 RSUs that fully vested on the grant date, each representing one share of common stock, and now holds 6,083 common shares directly after these awards. She also received 1,113 additional RSUs that will vest on the last business day immediately preceding the 2027 annual meeting of stockholders, subject to continued service. In addition, she received a nonqualified stock option for 2,571 shares of common stock at an exercise price of $40.24 per share, expiring in 2036, with tranches scheduled to vest on June 30, 2026, September 30, 2026, and December 31, 2026. These are compensation-related grants, not open-market purchases or sales.
MIAMI INTERNATIONAL HOLDINGS, INC. director Cynthia Schwarzkopf reported equity awards rather than market trades. She acquired 4,970 shares of common stock and 2,267 additional shares through stock awards at no cash price, and received a nonqualified stock option for 5,142 shares at an exercise price of $40.24 per share. After these grants, she directly holds 88,545 common shares and 5,142 options. Footnotes explain that some restricted stock units fully vested on the grant date, while others and the option vest through late 2026 and before the 2027 annual meeting, contingent on continued service.
MIAMI INTERNATIONAL HOLDINGS, INC. director Lee Becker received an equity award in the form of 2,267 shares of common stock on the grant date. The Form 4 classifies this as a grant or award acquisition at a stated price of $0.0000 per share.
According to the footnote, the amount represents restricted stock units that fully vested on the date of grant, with each RSU converting into one share of common stock. Following this award, Becker directly holds 2,267 shares, reflecting a routine compensation-related grant rather than an open-market purchase or sale.
Massad Mark I. reported acquisition or exercise transactions in this Form 4 filing.
MIAMI INTERNATIONAL HOLDINGS, INC. director Mark I. Massad reported stock-based compensation awards. On June 16, 2026, he received 4,970 restricted stock units that fully vested on the grant date, each representing one share of common stock. On June 15, 2026, he received 2,267 restricted stock units that vest immediately before the 2027 annual meeting of stockholders, subject to his continued service. Following these awards, he directly holds 10,737 shares of common stock.
MIAMI INTERNATIONAL HOLDINGS, INC. director Lisa Moore reported two equity compensation grants of common stock. On June 16, 2026, she acquired 4,970 shares of common stock at no cash cost through restricted stock units (RSUs) that fully vested on the grant date, with her direct holdings increasing to 12,737 shares afterward. On June 15, 2026, she acquired an additional 2,267 shares at no cash cost through RSUs that will vest on the last business day immediately before the 2027 annual meeting of stockholders, bringing her direct holdings to 7,767 shares following that earlier grant. These transactions reflect stock-based compensation awards rather than open-market purchases or sales.