OneStream has officially transitioned to a privately held entity following the successful completion of its $6.4 billion acquisition by Hg. The all-cash transaction, which includes minority investments from General Atlantic and Tidemark, resulted in OneStream’s Class A common stock being delisted from the Nasdaq. Under the final terms, shareholders are entitled to receive $24.00 per share in cash.
The acquisition follows a significant growth cycle for the U.S.-based finance platform, which reported more than doubling its AI customer base during 2025. By moving to a private structure, OneStream aims to accelerate its long-term product roadmap—specifically in the Finance AI and Agentic AI sectors—without the quarterly pressures of public market reporting. CEO Tom Shea and the current leadership team will remain in place to execute this next phase of global scaling.
The $6.4 billion valuation reflects a continued institutional appetite for platforms that unify fragmented financial and operational data. As an "operating system for modern finance," OneStream serves over 1,800 customers, including 18% of the Fortune 500. For the private equity landscape, the deal underscores Hg’s strategy of investing in category-leading software providers that offer critical workflow automation and intelligent forecasting capabilities.
Advisory roles for the transaction were led by J.P. Morgan Securities and Centerview Partners, which provided fairness opinions to OneStream, while Goldman Sachs served as the exclusive financial advisor to Hg. Moving forward, the partnership is expected to focus on deepening OneStream's AI differentiation as the company seeks to capture a larger share of the transatlantic technology market.
