HeartSciences Inc. filed Definitive Additional Materials on Schedule 14A on October 30, 2026, submitting supplemental proxy communications connected to its proposed all-stock merger with Fortitude Mining Holdings, Inc., including a social media post by a Digital Currency Group, Inc. executive officer.

Key Highlights

  • Filing type: HeartSciences (NASDAQ:HSCS) filed Definitive Additional Materials on Schedule 14A with the SEC on October 30, 2026.
  • Transaction structure: The proposed combination between HeartSciences and Fortitude Mining Holdings is described as an all-stock transaction.
  • Parties involved: Fortitude is described in the filing as "a vertically-integrated digital asset mining platform anchored in Zcash," while HeartSciences is described as "an AI-powered medical technology company."
  • Definitive Proxy Statement: HeartSciences filed its definitive proxy statement on Schedule 14A on October 19, 2026, and will mail it along with a proxy card to shareholders entitled to vote at the special meeting.
  • DCG involvement: Certain executive officers of Digital Currency Group, Inc. may be deemed participants in the solicitation of proxies from HeartSciences shareholders, according to the filing.
  • Zcash monetization: The filing discloses that Fortitude "currently sells or otherwise monetizes all the digital assets that it mines, including ZEC," with proceeds used for operating expenses, capital investments, hedging, and other purposes.

HeartSciences Submits Supplemental Proxy Materials Linking DCG Post to Fortitude Merger Vote

HeartSciences Inc., described in the filing as an AI-powered medical technology company trading on NASDAQ under the symbol HSCS, submitted supplemental proxy materials on October 30, 2026, in connection with its proposed merger with Fortitude Mining Holdings, Inc. According to the filing, the submission specifically includes "a social media post published by a certain executive officer of Digital Currency Group, Inc." and is intended to be read alongside other communications related to the Proposed Transaction.

The filing characterizes Fortitude as a vertically-integrated digital asset mining platform with operations anchored in Zcash (ZEC). It discloses that in the ordinary course of business, Fortitude sells or otherwise monetizes all digital assets it mines, including ZEC, and that Fortitude and its affiliates, including DCG, "from time to time sell, pledge or otherwise monetize their digital asset holdings." The filing states that funds received from these activities are used "to fund operating expenses and capital investments, as well as for other purposes, including to hedge exposures and realize investment gains."

The filing notes that HeartSciences' 2026 Annual Report was filed with the SEC on July 23, 2026, and that its Quarterly Report for the fiscal quarter ended July 31, 2026, was filed on September 14, 2026. These documents are cited as sources of additional factors that could cause actual results to differ materially from any forward-looking statements contained in communications related to the Proposed Transaction. The filing includes cautionary language stating that forward-looking statements "are based on management's current expectations and assumptions" and are subject to risks including the "highly volatile nature of the price of Zcash and other cryptocurrencies."

What Was Disclosed

HeartSciences filed supplemental proxy materials disclosing a social media post by a DCG executive officer, providing details on Fortitude's Zcash mining and monetization practices, and directing shareholders to review the definitive proxy statement filed October 19, 2026, in connection with the proposed all-stock merger.