Jane Street
TEM

Jane Street’s Tempus AI TEM Stock Holding History

Jane Street’s Portfolio TEM Stock Details TEM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$105M Buy
2,311,300
+936,800
+68% +$53.2M 0.01% 622
2025
Q4 		$81.2M Buy
1,374,500
+19,800
+1% +$1.55M 0.01% 681
2025
Q3 		$109M Buy
1,354,700
+289,000
+27% +$20.2M 0.02% 554
2025
Q2 		$67.7M Buy
1,065,700
+202,900
+24% +$11.6M 0.01% 617
2025
Q1 		$41.6M Buy
862,800
+660,600
+327% +$35.7M 0.01% 771
2024
Q4 		$6.83M Buy
202,200
+135,000
+201% +$6.68M ﹤0.01% 2284
2024
Q3 		$3.8M Buy
+67,200
New +$3.14M ﹤0.01% 3310

Other funds holding TEM

AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
GWMR
GC Wealth Management RIA Cambridge, Massachusetts $1.73B AUM 16.14% 1-Year Est. Return
SoftBank Group
SoftBank Group Tokyo, Japan $11.4B AUM 27.91% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return

Jane Street's TEM Position: Q1 2026 in Review

Jane Street increased its Tempus AI (TEM) stake by 198% in Q1 2026, buying an estimated $25.2M and bringing the position to 668,854 shares worth $30.2M. The position accounts for ﹤0.01% of the portfolio, ranked #1433.

Jane Street first reported a position in TEM in Q2 2024 and has held it in 8 quarters since. The position peaked at $40.7M in Q3 2025. 425 funds tracked by Wall St. Rank hold TEM as of Q1 2026.

  • Jane Street held 668,854 shares of Tempus AI worth $30.2M as of Q1 2026.
  • Jane Street bought 444,124 Tempus AI shares in Q1 2026, an estimated $25.2M.
  • Tempus AI made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #1433 holding.
  • Jane Street first reported a position in Tempus AI in Q2 2024 and has held it in 8 quarters since.
  • Jane Street's Tempus AI position peaked at $40.7M in Q3 2025.
  • 425 funds tracked by Wall St. Rank held Tempus AI as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.