Director John Michael DiMaio filed a Form 4 with the SEC on September 21, 2026, disclosing two open-market purchases of Spectral AI, Inc. common stock on September 18 and September 21, 2026.

Key Highlights

  • First purchase: DiMaio acquired 10,988 shares of common stock on September 18, 2026, at a weighted average price of $1.61 per share.
  • Second purchase: DiMaio acquired 21,012 shares of common stock on September 21, 2026, at a weighted average price of $1.69 per share.
  • Post-transaction ownership: Following both transactions, DiMaio directly holds 2,830,847 shares of common stock.
  • Derivative holdings: DiMaio also holds 5,292 ISOs and 20,352 ISOs (each with an exercise price of $1.67, expiring May 15, 2034), 250,000 NQSOs at $1.25 (expiring April 23, 2035), and 100,000 restricted stock units at $1.84 (expiring April 20, 2036).
  • RSU vesting: 50% of the 100,000 RSUs vested on April 20, 2026, and the remaining 50% will vest on April 1, 2027, according to the filing.
  • Reporting person role: DiMaio is identified as a Director of Spectral AI, Inc. (NASDAQ:MDAI).

DiMaio's Stock Purchases and Derivative Holdings at Spectral AI

According to the Form 4 filed with the SEC, John Michael DiMaio, a Director of Spectral AI, Inc. (NASDAQ:MDAI), reported two acquisitions of common stock over consecutive trading sessions. On September 18, 2026, DiMaio acquired 10,988 shares at a weighted average price of $1.61, bringing his direct beneficial ownership to 2,809,835 shares. Three days later, on September 21, 2026, he acquired an additional 21,012 shares at a weighted average price of $1.69, raising his total direct holdings to 2,830,847 shares.

The filing notes that both prices represent weighted averages, as each purchase involved multiple transactions. The reporting person has undertaken to provide full information regarding the number of shares purchased at each separate price upon request by the issuer, any security holder, or SEC staff, according to the filing.

In Table II, the filing discloses derivative securities held directly by DiMaio. These include two ISO grants covering 5,292 and 20,352 shares of common stock, respectively, both at an exercise price of $1.67 and expiring May 15, 2034. The filing states that 100% of the first ISO grant vested on the date of issuance, and 100% of the second ISO grant was vested as of the filing date. DiMaio also holds 250,000 NQSOs at an exercise price of $1.25, expiring April 23, 2035, of which 100,000 were vested as of the filing date and the remaining 150,000 vest upon achievement of certain milestones. Additionally, 100,000 RSUs at $1.84, expiring April 20, 2036, are disclosed, with 50% having vested on April 20, 2026, and the remaining 50% scheduled to vest on April 1, 2027.

What Was Disclosed

Director John Michael DiMaio disclosed two purchases totaling 32,000 shares of Spectral AI common stock on September 18 and 21, 2026, and reported existing derivative security holdings including ISOs, NQSOs, and RSUs, all held directly.