William Blair & Company
TEM

William Blair & Company’s Tempus AI TEM Stock Holding History

William Blair & Company’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 		$3.99M Buy
88,321
+7,124
+9% +$405K 0.01% 555
2025
Q4 		$4.79M Buy
81,197
+10,256
+14% +$802K 0.01% 527
2025
Q3 		$5.73M Buy
70,941
+3,304
+5% +$231K 0.02% 491
2025
Q2 		$4.3M Buy
67,637
+35,303
+109% +$2.02M 0.01% 536
2025
Q1 		$1.56M Buy
32,334
+25,495
+373% +$1.38M ﹤0.01% 771
2024
Q4 		$231K Sell
6,839
-6,475
-49% -$320K ﹤0.01% 1390
2024
Q3 		$754K Buy
+13,314
New +$622K ﹤0.01% 989

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 $175B AUM 40.63% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return

William Blair & Company's TEM Position: Q1 2026 in Review

William Blair & Company increased its Tempus AI (TEM) stake by 8.8% in Q1 2026, buying an estimated $405K and bringing the position to 88,321 shares worth $3.99M. The position accounts for 0.01% of the portfolio, ranked #555.

William Blair & Company first reported a position in TEM in Q3 2024 and has held it in 7 quarters since. The position peaked at $5.73M in Q3 2025. 425 funds tracked by Wall St. Rank hold TEM as of Q1 2026.

  • William Blair & Company held 88,321 shares of Tempus AI worth $3.99M as of Q1 2026.
  • William Blair & Company bought 7,124 Tempus AI shares in Q1 2026, an estimated $405K.
  • Tempus AI made up 0.01% of William Blair & Company's portfolio in Q1 2026, its #555 holding.
  • William Blair & Company first reported a position in Tempus AI in Q3 2024 and has held it in 7 quarters since.
  • William Blair & Company's Tempus AI position peaked at $5.73M in Q3 2025.
  • 425 funds tracked by Wall St. Rank held Tempus AI as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.