William Blair Investment Management, LLC Portfolio Holdings

William Blair Investment Management, LLC

  • $32.7 Billion
  • Q1 2025

William Blair Investment Management, LLC has filed its 13F form on May 09, 2025 for Q1 2025 where it was disclosed a total value porftolio of $32.7 Billion distributed in 423 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Microsoft Corp with a value of $1.55B, Nvidia Corp with a value of $1.32B, Taiwan Semiconductor Manufacturing CO LTD with a value of $1.22B, Amazon Com Inc with a value of $1.16B, and Apple Inc. with a value of $1.16B.

Examining the 13F form we can see an decrease of $5.53B in the current position value, from $38.3B to 32.7B.

William Blair Investment Management, LLC is based out at Chicago, IL

Below you can find more details about William Blair Investment Management, LLC portfolio as well as his latest detailed transactions.

Portfolio value $32.7 Billion
Technology: $11 Billion
Consumer Cyclical: $5.48 Billion
Financial Services: $4.09 Billion
Healthcare: $3.98 Billion
Industrials: $3.2 Billion
Communication Services: $1.57 Billion
Consumer Defensive: $1.36 Billion
Real Estate: $638 Million
Other: $1.35 Billion

Stock Holdings Table Companies Only

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$4.42B
$166 Million 0.51% of portfolio
2,273,787
Q1 2025 Added 84.46%
$5.78B
$167 Million 0.51% of portfolio
5,597,851
Q1 2025 Reduced 4.15%
$12.2B
$164 Million 0.5% of portfolio
514,937
Q1 2025 Reduced 6.96%
$20.6B
$165 Million 0.5% of portfolio
628,537
Q1 2025 Reduced 7.06%
$1.9B
$156 Million 0.48% of portfolio
11,076,909
Q1 2025 Reduced 8.45%
$5.44B
$157 Million 0.48% of portfolio
1,967,187
Q1 2025 Reduced 2.29%
$18.6B
$154 Million 0.47% of portfolio
485,212
Q1 2025 Added 29.83%
$2.2B
$149 Million 0.46% of portfolio
3,806,867
Q1 2025 Added 29.06%
$6.18B
$150 Million 0.46% of portfolio
1,042,446
Q1 2025 Reduced 4.61%
$5.62B
$147 Million 0.45% of portfolio
928,888
Q1 2025 Reduced 4.81%
$6.21B
$147 Million 0.45% of portfolio
5,282,161
Q1 2025 Reduced 4.92%
$6.17B
$143 Million 0.44% of portfolio
2,277,639
Q1 2025 Reduced 1.2%
$40B
$146 Million 0.44% of portfolio
628,291
Q1 2025 Reduced 21.1%
$35.4B
$140 Million 0.43% of portfolio
292,752
Q1 2025 Reduced 33.19%
$30.9B
$138 Million 0.42% of portfolio
3,362,624
Q1 2025 Reduced 17.18%
$2.22B
$133 Million 0.41% of portfolio
4,398,555
Q1 2025 Added 21.24%
$10.3B
$129 Million 0.39% of portfolio
687,005
Q1 2025 New
$10.6B
$129 Million 0.39% of portfolio
696,511
Q1 2025 Reduced 2.43%
$7.68B
$127 Million 0.39% of portfolio
1,429,668
Q1 2025 Reduced 26.48%
$31.4B
$129 Million 0.39% of portfolio
2,199,595
Q1 2025 Reduced 39.78%
$12.5B
$126 Million 0.38% of portfolio
2,404,472
Q1 2025 Reduced 7.21%
$8.27B
$123 Million 0.38% of portfolio
2,518,105
Q1 2025 Reduced 26.1%
$6.8B
$125 Million 0.38% of portfolio
5,892,673
Q1 2025 Added 7.27%
$4.79B
$126 Million 0.38% of portfolio
720,305
Q1 2025 Reduced 14.08%
$11.8B
$121 Million 0.37% of portfolio
2,005,631
Q1 2025 New
$1.8B
$121 Million 0.37% of portfolio
14,778,651
Q1 2025 Reduced 5.25%
$768M
$121 Million 0.37% of portfolio
14,508,626
Q1 2025 Reduced 6.8%
$1.19B
$118 Million 0.36% of portfolio
13,558,932
Q1 2025 Reduced 5.49%
$118B
$117 Million 0.36% of portfolio
3,717,585
Q1 2025 Added 3.56%
$5.28B
$117 Million 0.36% of portfolio
353,155
Q1 2025 Reduced 5.01%
$3.87B
$110 Million 0.34% of portfolio
692,918
Q1 2025 Reduced 23.23%
$9.99B
$110 Million 0.34% of portfolio
1,013,255
Q1 2025 Reduced 2.58%
$10.9B
$110 Million 0.33% of portfolio
710,666
Q1 2025 Reduced 25.87%
$19.4B
$108 Million 0.33% of portfolio
577,914
Q1 2025 Reduced 7.88%
$3.35B
$105 Million 0.32% of portfolio
1,266,200
Q1 2025 Added 42.81%
$3.94B
$105 Million 0.32% of portfolio
949,715
Q1 2025 Reduced 8.06%
$65.2B
$106 Million 0.32% of portfolio
19,276,152
Q1 2025 Added 36.73%
$17.4B
$102 Million 0.31% of portfolio
2,314,536
Q1 2025 Reduced 8.34%
$187B
$97.4 Million 0.3% of portfolio
312,019
Q1 2025 Reduced 66.79%
$9.79B
$97.4 Million 0.3% of portfolio
2,249,038
Q1 2025 Reduced 34.71%
$1.07T
$96.1 Million 0.29% of portfolio
621,388
Q1 2025 Reduced 25.2%
$6.69B
$91 Million 0.28% of portfolio
989,462
Q1 2025 Reduced 6.72%
$4.97B
$92.9 Million 0.28% of portfolio
422,594
Q1 2025 New
$12.2B
$91.2 Million 0.28% of portfolio
368,056
Q1 2025 Added 218.3%
$10B
$88.9 Million 0.27% of portfolio
781,091
Q1 2025 Reduced 7.87%
$3.84B
$84.2 Million 0.26% of portfolio
1,775,513
Q1 2025 Reduced 7.54%
$7.85B
$84 Million 0.26% of portfolio
505,945
Q1 2025 Reduced 31.4%
$8.09B
$86.4 Million 0.26% of portfolio
389,208
Q1 2025 Reduced 5.8%
$3.99B
$85.2 Million 0.26% of portfolio
2,434,850
Q1 2025 Reduced 7.77%

Summary

  • Portfolio
  • No. of Stocks 423
  • Current Value $32.7 Billion
  • Prior Value $38.3 Billion
  • Filing
  • Period Q1 2025
  • Filing Date May 09, 2025
  • Form Type 13F-HR
  • Activity in Q1 2025
  • New Purchases 36 stocks
  • Additional Purchases 114 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 269 stocks
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