OneStream is entering a new dimension. The US-based financial performance management software provider has announced the signing of a definitive agreement for its acquisition by investment firm Hg, at a valuation of $6.4 billion. The all-cash transaction will take OneStream private and opens a new strategic chapter focused on accelerating artificial intelligence innovation for the finance function.
As part of this transaction, OneStream shareholders will receive $24 per share, representing a 31% premium over the closing price on January 5, 2026. Hg will become the majority shareholder, alongside General Atlantic and Tidemark, which will take significant minority stakes. KKR, which took OneStream public in 2024, will sell its entire stake.
The transaction is expected to close in the first half of 2026, subject to customary regulatory approvals. Once the transaction is completed, OneStream will become a privately held company and its shares will no longer trade on Nasdaq.
Going private to accelerate
For OneStream, this acquisition represents far more than a financial transaction. It is part of a deliberate strategic approach: freeing itself from the short-term constraints imposed by financial markets in order to invest more rapidly and more substantially in transforming the finance function.
“Today marks a pivotal moment for OneStream and for our vision of becoming the operating system for modern finance,” said Tom Shea, CEO of OneStream. “Finance organisations are at a major inflection point with AI. This partnership will enable us to move faster, think bigger and deliver greater value to our customers.”
The executive will remain at the helm of the company, along with the current management team. OneStream’s headquarters will remain in Birmingham, Michigan, signalling continuity to customers, partners and employees.
A committed bet on AI for the finance function
With more than 1,700 customers worldwide, including 18% of Fortune 500 companies, OneStream has established itself as a key player in financial performance management platforms, covering consolidation, close, reporting, planning and forecasting.
For Hg, the investment is consistent with a well-established thesis. The firm has invested more than $4.5 billion in solutions for finance organisations and has an internal team of more than 100 AI specialists, as well as a dedicated incubator, Hg Catalyst, to accelerate product innovation.
“The demands placed on finance teams continue to grow,” notes Alan Cline, Partner and Head of North America at Hg. “OneStream’s AI differentiation, global customer base and clear vision make it a leader that is particularly well positioned for the future.”
A strong signal for the EPM market
This transaction comes at a time of major reshaping in the EPM market, driven by the rise of AI, the search for unified platforms and increasing pressure on finance organisations to deliver predictive, rapid and reliable insights.
Hg’s acquisition of OneStream sends a clear signal: the finance function has become an area of strategic investment, at the intersection of data, AI and organisational transformation. It also confirms the appeal of software providers capable of going beyond simple reporting to become true enterprise performance management platforms.
For OneStream customers, the message is intended to be reassuring. The company states that it intends to preserve its culture, partner ecosystem and customer focus, while benefiting from greater resources to accelerate innovation.
A new phase of growth
Following its IPO in 2024, OneStream is therefore quickly closing the chapter on public markets to enter a new phase of development, under the stewardship of investors specialising in long-term B2B software.
“It is recognition of the progress made and the potential ahead,” summarised a long-standing partner of the software provider.
An observation shared by the market: in a world where finance must be faster, more predictive and more strategic, OneStream now intends to compete among the foundational platforms of the CFO function.
source: onestream
