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
$4.11B
$24.4 Million 0.07% of portfolio
324,121
Q1 2025 Reduced 4.44%
$744M
$22.7 Million 0.07% of portfolio
423,910
Q1 2025 Reduced 3.84%
$3.88B
$24.1 Million 0.07% of portfolio
308,143
Q1 2025 Reduced 33.12%
$8.72B
$23.5 Million 0.07% of portfolio
233,338
Q1 2025 Added 10.05%
$890M
$21.7 Million 0.07% of portfolio
1,389,043
Q1 2025 Added 39.21%
$931M
$21.6 Million 0.07% of portfolio
946,623
Q1 2025 Added 3.98%
$12.5B
$24 Million 0.07% of portfolio
243,461
Q1 2025 Reduced 81.98%
$2.16B
$23.2 Million 0.07% of portfolio
2,282,251
Q1 2025 Reduced 4.4%
$14.9B
$22.6 Million 0.07% of portfolio
270,435
Q1 2025 Reduced 31.93%
$3.35B
$21 Million 0.06% of portfolio
431,732
Q1 2025 Reduced 22.68%
$765M
$20.6 Million 0.06% of portfolio
351,830
Q1 2025 Reduced 4.3%
$11.2B
$18.3 Million 0.06% of portfolio
37,659
Q1 2025 Added 18.55%
$2.02B
$19.5 Million 0.06% of portfolio
733,590
Q1 2025 Reduced 4.42%
$1.47B
$21.1 Million 0.06% of portfolio
544,685
Q1 2025 Added 79.44%
$847M
$21.2 Million 0.06% of portfolio
985,530
Q1 2025 Reduced 71.7%
$3.16B
$20.4 Million 0.06% of portfolio
1,070,293
Q1 2025 Added 50.13%
$2.61B
$18.7 Million 0.06% of portfolio
321,304
Q1 2025 Added 34.28%
$3.41B
$21 Million 0.06% of portfolio
701,437
Q1 2025 Reduced 4.38%
$614M
$20.4 Million 0.06% of portfolio
2,621,012
Q1 2025 Reduced 4.44%
$7.3B
$20.8 Million 0.06% of portfolio
2,555,514
Q1 2025 Reduced 2.47%
$1.16B
$18.3 Million 0.06% of portfolio
676,484
Q1 2025 Reduced 24.71%
$928M
$18.9 Million 0.06% of portfolio
1,449,137
Q1 2025 New
$1.85B
$20.7 Million 0.06% of portfolio
705,276
Q1 2025 Reduced 4.13%
$1.4B
$20.9 Million 0.06% of portfolio
2,067,154
Q1 2025 Reduced 4.26%
$718M
$19.3 Million 0.06% of portfolio
1,223,784
Q1 2025 Reduced 4.41%
$2.14B
$19.9 Million 0.06% of portfolio
648,191
Q1 2025 Added 3.98%
$1.12B
$19.6 Million 0.06% of portfolio
1,430,899
Q1 2025 Reduced 4.1%
$5.1B
$17.8 Million 0.05% of portfolio
146,441
Q1 2025 New
$883M
$15.7 Million 0.05% of portfolio
595,265
Q1 2025 Reduced 36.49%
$1.93B
$17.1 Million 0.05% of portfolio
391,512
Q1 2025 Added 4.2%
$4.48B
$16.6 Million 0.05% of portfolio
108,320
Q1 2025 Reduced 27.11%
$3.72B
$17.6 Million 0.05% of portfolio
303,589
Q1 2025 Reduced 1.79%
$596M
$16.4 Million 0.05% of portfolio
6,065,757
Q1 2025 Reduced 4.41%
$507M
$15.6 Million 0.05% of portfolio
1,074,725
Q1 2025 Reduced 4.13%
$479M
$15.1 Million 0.05% of portfolio
884,452
Q1 2025 Reduced 3.87%
$991M
$16.3 Million 0.05% of portfolio
474,284
Q1 2025 Reduced 4.02%
$63.5B
$14.4 Million 0.04% of portfolio
226,811
Q1 2025 New
$168B
$14.3 Million 0.04% of portfolio
98,398
Q1 2025 Added 0.59%
$5.2B
$14.7 Million 0.04% of portfolio
191,308
Q1 2025 Reduced 22.67%
$5.97B
$13.6 Million 0.04% of portfolio
348,661
Q1 2025 Reduced 2.31%
$410M
$13.8 Million 0.04% of portfolio
1,344,351
Q1 2025 Reduced 4.42%
$3.28B
$12.8 Million 0.04% of portfolio
1,101,604
Q1 2025 Reduced 2.3%
$1.24B
$14.2 Million 0.04% of portfolio
1,497,586
Q1 2025 Reduced 85.51%
$1.57B
$12.1 Million 0.04% of portfolio
632,978
Q1 2025 Reduced 33.82%
$573B
$14.6 Million 0.04% of portfolio
15,697
Q1 2025 New
$15.7B
$14.7 Million 0.04% of portfolio
28,837
Q1 2025 Reduced 45.03%
$9.11B
$13.5 Million 0.04% of portfolio
49,214
Q1 2025 Reduced 0.24%
$2.91B
$13.1 Million 0.04% of portfolio
673,651
Q1 2025 New
$2.55B
$12.3 Million 0.04% of portfolio
908,623
Q1 2025 New

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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