TEM Tempus AI, Inc.: institutional ownership and insider trading
546 funds reported holding $8.62B of Tempus AI, Inc. in their latest 13F filings; in Q2 2026 funds net bought $628M, with 117 new positions and 53 funds selling out; over the last 12 months insiders bought $0 and sold $221M on the open market.
Famous investors holding TEM
- Cathie Wood (ARK Investment Management): $581M, 3.8% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $83.0M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $294M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $13.9M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $5.96M, 0.0% of the portfolio
Largest institutional holders of TEM
- VANGUARD GROUP INC — $606M
- ARK Investment Management LLC — $581M
- JANE STREET GROUP, LLC — $519M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP — $504M
- BlackRock, Inc. (BLK) — $480M
- BAILLIE GIFFORD & CO — $474M
- SOFTBANK GROUP CORP. — $313M
- CITADEL ADVISORS LLC — $294M
- JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) — $291M
- VANGUARD CAPITAL MANAGEMENT LLC — $289M
Recent TEM insider trades
- Sep 25, 2026: Schoenherr Thomas Edward sold 10,281 shares ($874K)
- Sep 22, 2026: Lefkofsky Eric P sold 250,000 shares ($19.4M)
- Sep 17, 2026: Lefkofsky Eric P sold 200,000 shares ($16.1M)
- Sep 17, 2026: Bartolucci Ryan M sold 7,062 shares ($530K)
Members of Congress trading TEM
- Jan 16, 2026: Nancy Pelosi bought
- May 9, 2025: Robert P. Bresnahan, Jr. bought $1.00K–$15.0K
- Jan 14, 2025: Nancy Pelosi bought $50.0K–$100K
5%+ owners
- BAILLIE GIFFORD & CO: 5.0% (Schedule 13G/A, filed May 7, 2026)