Oncology Institute, Inc. (TOI) Institutional Ownership

Ownership Summary

The institutional landscape for Oncology Institute, Inc. (NASDAQ:TOI) includes 107 filers as of the latest reporting cycle ending September 2025.

• The collective stake of institutional investors in Oncology Institute moved to 36.4% in September 2025, a shift up from the 35.3% reported for June 2025.
• On a quarter-over-quarter basis, institutional holdings shifted by 8.34%, with a year-over-year an increase of 214.71% in the count of filers.
• Among the 107 institutional holders of Oncology Institute, 63 added to their stakes while 28 trimmed their positions and 16 held steady.
• This class of investors increased its holdings in Oncology Institute to 33.99Mn shares for the 13F-cycle ending September 2025, up by 2.62Mn shares quarter on quarter, and up 13.40Mn shares year over year.
• VANGUARD GROUP INC's holding of 4.55Mn shares as of September 30, 2025 makes it the primary institutional investor in Oncology Institute, owning 4.86% of the stock.
• Among the most significant buyers of Oncology Institute during September 2025 were CenterBook Partners LP (1.99Mn), Kanen Wealth Management LLC (1.84Mn), UBS Group AG (635.49K), MILLENNIUM MANAGEMENT LLC (545.99K), GOLDMAN SACHS GROUP INC (527.01K).
• Leading sellers of Oncology Institute stock in September 2025 included TIFF ADVISORY SERVICES, LLC (2.78Mn), JOSH ARNOLD INVESTMENT CONSULTANT, LLC (2.24Mn), MARSHALL WACE, LLP (1.45Mn), FreeGulliver LLC (133.80K), Verition Fund Management LLC (121.74K).
• The top 10 institutional holders of Oncology Institute for the quarter ending September 2025 included VANGUARD GROUP INC (4.55Mn), BlackRock, Inc. (3.43Mn), DEERFIELD MANAGEMENT COMPANY, L.P. (3.36Mn), CenterBook Partners LP (2.70Mn), BALYASNY ASSET MANAGEMENT L.P. (2.52Mn), Kanen Wealth Management LLC (1.84Mn), WEXFORD CAPITAL LP (1.57Mn), GEODE CAPITAL MANAGEMENT, LLC (1.40Mn), STATE STREET CORP (1.13Mn), UBS Group AG (1.06Mn).