The year-old tech-oriented lender, which targets companies in crypto, AI, defense, and manufacturing, has seen its total deposits grow from $1.1 billion in March to $4.6 billion by July. Lux Capital, Human Capital, Valor Equity Partners, Andreessen Horowitz, and SV Angel are expected to make large commitments in the fundraising round, which would nearly double its private-market value from a $4.35 billion valuation earlier this year.