Tempus AI, Inc. (TEM) Institutional Ownership

Ownership Summary

Tempus AI, Inc. (NASDAQ:TEM) has 420 institutional investors that have filed 13F reports for the period ending March 2026.

• Collectively, these holders controlled 58825.6% of Tempus AI's outstanding shares in March 2026, up from 57817.2% in December 2025.
• Their total shares held in TEM increased 22.06% quarter over quarter, and separately, investors owning Tempus AI increased 45.83% from a year ago.
• Of these 420 funds, 251 grew their exposure to Tempus AI, 102 cut back, and 67 maintained positions.
• Altogether, these fund groups held 105.23Mn shares in TEM by March 2026, up by 19.02Mn shares quarter on quarter, and up 41.97Mn shares year over year.
• As of March 31, 2026, ARK Investment Management LLC held the largest stake in Tempus AI with 9.61Mn shares, accounting for 5371.06% of total shares outstanding.
• Top purchasers of TEM stock for the quarter ending March 2026 included VANGUARD CAPITAL MANAGEMENT LLC (4.92Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (4.68Mn), ARK Investment Management LLC (2.05Mn), UBS Group AG (1.75Mn), BlackRock, Inc. (1.45Mn).
• The largest sales of TEM for the quarter ending March 2026 came from D. E. Shaw & Co., Inc. (1.1Mn), TWO SIGMA INVESTMENTS, LP (792.08K), Bank Of America Corp /De/ (725.71K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (612.09K), VOLORIDGE INVESTMENT MANAGEMENT, LLC (400.13K).
• Per Business Quant, the top 10 investors in TEM for the quarter ending March 2026 include ARK Investment Management LLC (9.61Mn), BlackRock, Inc. (8.97Mn), BAILLIE GIFFORD & CO (8.65Mn), GC Wealth Management RIA, LLC (6.61Mn), SOFTBANK GROUP CORP. (5.41Mn), Jpmorgan Chase & Co (4.93Mn), VANGUARD CAPITAL MANAGEMENT LLC (4.92Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (4.68Mn), Amova Asset Management Americas, Inc. (4.33Mn), Sumitomo Mitsui Trust Group, Inc. (4.33Mn).