Thalassa Capital

Thalassa Capital is Mike Novogratz's single-family office, housing his personal balance sheet. Galaxy Digital is a publicly traded merchant bank he founded in 2018 to offer institutional crypto trading, investment banking, and asset management to external clients. The two entities operate separately, with Thalassa retaining legacy holdings and the principal's personal investments, while Galaxy manages client capital. Novogratz's economic interest flows primarily through his ownership of Galaxy Digital equity, which is distinct from the family office's direct positions.

Thalassa Capital invests in digital assets, including liquid cryptocurrencies, early-stage token projects, and equity in blockchain infrastructure companies. Known examples include its early involvement with Block.one, the software company behind the EOSIO blockchain protocol. The office also holds public crypto positions and has historically maintained exposure to macro strategies, reflecting Novogratz's Goldman Sachs and Fortress background.

Mike Novogratz is the principal decision-maker at Thalassa Capital, given its structure as his personal family office. While the office may employ investment staff, the concentration of authority rests with Novogratz, who has publicly discussed his personal investment theses across crypto, macro, and special situations. No external investment committee or family council is publicly disclosed.

Mike Novogratz's wealth originates from his career at Goldman Sachs, where he became a partner, and his subsequent role as president of Fortress Investment Group. The Fortress IPO in 2007 generated the core liquidity that seeded Thalassa Capital. His net worth has since been significantly amplified by concentrated crypto investments made through both Thalassa and his later venture, Galaxy Digital.

Thalassa Capital operates as a single-family office and does not take external capital in the traditional sense; it manages Mike Novogratz's personal wealth alongside capital from a small group of principals. When Novogratz wanted to scale crypto investing with third-party money, he founded Galaxy Digital Holdings as a separate public company. Thalassa remains the private, internal vehicle.

The structure creates inherent conflicts because Thalassa holds positions in assets that Galaxy Digital may trade, list, or advise on for clients. Galaxy Digital maintains public-company compliance policies and a designated conflicts framework, and Novogratz has firewall obligations tied to his dual roles. The precise separation of information and trading across the two entities is a recurring focus for institutional counterparties analyzing the ecosystem.

Thalassa Capital does not market co-investment opportunities to external allocators, as it is a single-family office. It may, however, invest alongside external venture funds and blockchain protocols as a direct participant. The office's deals are occasionally visible through public token sales and SEC filings, but the firm does not operate a formal co-investment program.