BTCS Inc., a Nasdaq-listed digital-asset infrastructure company, has filed a shelf registration with the U.S. Securities and Exchange Commission to sell up to $2 billion of stock through at-the-market offerings. The company said it intends to deploy much of the proceeds to increase its Ethereum reserves and for general working capital. BTCS already holds about 70,000 Ether—valued at roughly $269 million—making it the ninth-largest corporate holder of the cryptocurrency, according to public treasury data. The planned raise underscores growing institutional appetite for Ether as firms expand on-balance-sheet exposure to the second-largest blockchain network.