Digital Currency Group, Inc., through its wholly owned unit Fortitude Mining Holdings, Inc., acquired a 9.4% stake in HeartSciences Inc. common stock. The purchase occurred on Aug. 12, 2026 via a $1.0 million subscription to support HeartSciences’ operating needs, and the Schedule 13D was filed on Aug. 18, 2026. The deal sits alongside a pending merger that would shift control to Fortitude and rebrand the business as Fortitude Mining Group, Inc.

Investor Intent

DCG and Fortitude funded HeartSciences while they move to close a merger that creates an Up-C structure and hands them control. Under the Merger Agreement, “Fortitude will contribute $2,000,000 in cash or Zcash” for new Class A shares, and Fortitude will also receive Class V shares tied to operating units, positioning the group to consolidate governance after closing.

If the merger falls through, HeartSciences must register the resale of the 411,522 shares Fortitude just bought within 30 days, but no registration is needed if the deal closes. Following closing, Fortitude is “expected to hold approximately 95% of the outstanding combined voting power,” and Fortitude-designated directors and officers will take over the reconstituted board and management.

Investor's Background

Digital Currency Group, Inc. is a Delaware corporation that invests in and operates companies focused on cryptocurrency and decentralized technologies. DCG owns Fortitude Mining Holdings, Inc., which runs a digital asset mining platform. DCG is best known for building crypto infrastructure businesses, including Grayscale Investments and Foundry, and for backing early-stage and growth companies across the digital asset ecosystem.

Original SEC Filing: HeartSciences Inc. [ HSCS ] - SCHEDULE 13D - Aug. 18, 2026