Mill City Bets $450M on Sui, Launching First Publicly Traded Blockchain Treasury

Mill City Ventures III is making waves with a strategic pivot into digital assets, announcing a $450 million commitment to Sui’s blockchain ecosystem. The Nasdaq-listed non-bank lending firm is launching what it calls the first publicly traded treasury dedicated to Sui tokens—an ambitious bet on infrastructure-first crypto assets over passive reserves like Bitcoin or Ethereum.

Announced on July 28, the private placement was led by London-based hedge fund Karatage and matched by the Sui Foundation. A staggering 98% of the raised funds will be directed toward acquiring SUI tokens, with Mill City aiming to position itself at the forefront of blockchain-based institutional finance.

Backing the move are prominent crypto venture firms including Galaxy Digital, Pantera Capital, Electric Capital, and ParaFi—all known for funding foundational crypto technologies.

As part of the agreement, Karatage co-founders Marius Barnett and Stephen Mackintosh will join Mill City in executive roles, with Mackintosh becoming Chief Investment Officer. He emphasized that the investment reflects confidence in Sui’s technical edge: “Sui offers sub-second finality, parallel processing, and scalability needed for AI-powered smart contracts and stablecoin settlements at institutional scale.”

Unlike traditional corporate crypto reserves, Mill City's treasury will function in close coordination with the Sui Foundation. This partnership provides access to negotiated token allocations and ecosystem insights—an unusual but potentially advantageous setup for a public company.

Mill City’s approach blends open-market token purchases with off-market institutional deals, leveraging Karatage’s market depth to minimize price disruption. Such tactics are standard among crypto-native funds but groundbreaking for a publicly traded U.S. firm.

The offering is structured under Regulation D, which restricts participation to accredited investors. While this limits public access, it shields the firm from heightened regulatory scrutiny and aligns with a long-term institutional growth strategy. A resale registration statement will follow, allowing select stakeholders to gain liquidity.

Sui’s appeal lies in its architectural innovations. As the blockchain space pushes beyond simple transactions into AI-integrated financial systems, Sui’s low latency and modular design position it as a next-generation platform. With this $450 million endorsement, Mill City signals its belief that Sui is not just a speculative play, but the foundation for the next wave of real-world blockchain integration.