OneStream CFO Bill Koefoed To Depart, Effective Dec. 31, John Kinzer Named Interim CFO; Scott Leshinski Promoted To President, Effective Jan. 1, 2026

OneStream, Inc. (Nasdaq: OS) ("OneStream" or the "Company"), the leading enterprise Finance management platform that modernizes the Office of the CFO by unifying core Finance and operational functions – including financial close, consolidation, reporting, planning and forecasting – today announced a CFO transition plan and the promotion of a new President, as well as additional leadership changes, as the Company prepares to begin its next chapter of growth and market expansion. 

Under the CFO transition plan, OneStream CFO Bill Koefoed will depart his current role effective December 31, 2025. As the Company begins conducting a search to identify a permanent successor for Mr. Koefoed, John Kinzer, a longtime member of OneStream's Board of Directors (the "Board") and former CFO of HubSpot and Blackboard, has agreed to immediately join the Company as a Strategic Advisor and, effective January 1, 2026, assume the role of Interim CFO. Mr. Koefoed will continue as a Senior Advisor to OneStream through April 1, 2026 to ensure a smooth transition. Mr. Kinzer will remain on the Board but has ceased his service on its Audit and Compensation, Nominating and Governance Committees.

The Company today also announced the promotion of Scott Leshinski, current Executive Vice President – AI & Operational Analytics, to President of OneStream effective January 1, 2026.