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

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$18.9B
$80 Million 0.24% of portfolio
429,630
Q1 2025 Reduced 10.28%
$145B
$77 Million 0.24% of portfolio
1,159,298
Q1 2025 Reduced 53.43%
$18.1B
$77.1 Million 0.24% of portfolio
323,644
Q1 2025 Reduced 7.56%
$112B
$78.4 Million 0.24% of portfolio
259,685
Q1 2025 Added 39.58%
$20.7B
$79 Million 0.24% of portfolio
352,838
Q1 2025 Reduced 44.93%
$5.65B
$74.1 Million 0.23% of portfolio
860,816
Q1 2025 Reduced 8.01%
$145B
$76.6 Million 0.23% of portfolio
802,416
Q1 2025 Reduced 62.69%
$4.46B
$74.3 Million 0.23% of portfolio
3,462,838
Q1 2025 Added 83.9%
$9.44B
$71.9 Million 0.22% of portfolio
4,433,042
Q1 2025 Reduced 6.65%
$4.49B
$73.4 Million 0.22% of portfolio
745,290
Q1 2025 Reduced 7.94%
$3.67B
$70.6 Million 0.22% of portfolio
745,333
Q1 2025 Added 1.04%
$3.67B
$70.2 Million 0.21% of portfolio
980,936
Q1 2025 Reduced 4.59%
$32.5B
$69.6 Million 0.21% of portfolio
724,149
Q1 2025 Added 16.04%
$45.4B
$64.4 Million 0.2% of portfolio
6,288,910
Q1 2025 Added 4.36%
$7.17B
$65.6 Million 0.2% of portfolio
1,250,434
Q1 2025 Reduced 24.18%
$7.82B
$64.9 Million 0.2% of portfolio
1,095,474
Q1 2025 Added 63.96%
$1.29B
$57.8 Million 0.18% of portfolio
2,476,501
Q1 2025 Reduced 16.99%
$12.7B
$58.9 Million 0.18% of portfolio
1,680,840
Q1 2025 Added 56.47%
$7.53B
$58.6 Million 0.18% of portfolio
1,076,264
Q1 2025 Added 19.44%
$2.29B
$58 Million 0.18% of portfolio
990,099
Q1 2025 Reduced 7.89%
$1.87B
$57.3 Million 0.18% of portfolio
1,285,086
Q1 2025 Added 2.12%
$19.9B
$56.4 Million 0.17% of portfolio
12,442,630
Q1 2025 New
$2.3B
$57.2 Million 0.17% of portfolio
1,070,310
Q1 2025 Added 70.63%
$6.21B
$55.4 Million 0.17% of portfolio
476,393
Q1 2025 Added 25.34%
$5.89B
$52 Million 0.16% of portfolio
673,236
Q1 2025 Reduced 2.64%
$3.82B
$54 Million 0.16% of portfolio
1,159,279
Q1 2025 Added 13.41%
$2.23B
$49.9 Million 0.15% of portfolio
722,349
Q1 2025 Added 11.63%
$870B
$48.9 Million 0.15% of portfolio
199,539
Q1 2025 Added 39.57%
$4.79B
$47.5 Million 0.15% of portfolio
286,133
Q1 2025 Added 4.22%
$262B
$50.4 Million 0.15% of portfolio
574,624
Q1 2025 Added 29.44%
$3.74B
$50.2 Million 0.15% of portfolio
2,229,942
Q1 2025 Reduced 21.87%
$683M
$45.1 Million 0.14% of portfolio
3,486,054
Q1 2025 Added 0.7%
$145B
$45.1 Million 0.14% of portfolio
159,401
Q1 2025 Added 18.65%
$4.44B
$45.2 Million 0.14% of portfolio
991,450
Q1 2025 Added 8.85%
$1.87B
$44.9 Million 0.14% of portfolio
1,006,818
Q1 2025 Reduced 4.39%
$4.31B
$44.8 Million 0.14% of portfolio
600,172
Q1 2025 Reduced 4.41%
$3.41B
$44.9 Million 0.14% of portfolio
243,715
Q1 2025 Reduced 4.43%
$6.58B
$44.8 Million 0.14% of portfolio
746,706
Q1 2025 Reduced 4.39%
$10.1B
$44.5 Million 0.14% of portfolio
103,958
Q1 2025 Added 228.63%
$790M
$41.7 Million 0.13% of portfolio
4,982,049
Q1 2025 Reduced 32.61%
$173B
$42.8 Million 0.13% of portfolio
86,395
Q1 2025 Added 2.28%
$3.03B
$42.8 Million 0.13% of portfolio
1,497,757
Q1 2025 Reduced 4.42%
$908M
$41.7 Million 0.13% of portfolio
4,403,937
Q1 2025 Reduced 7.89%
$2.13B
$43.9 Million 0.13% of portfolio
1,346,201
Q1 2025 Reduced 4.3%
$4.56B
$43.4 Million 0.13% of portfolio
754,558
Q1 2025 Reduced 4.4%
$11.1B
$42.1 Million 0.13% of portfolio
631,600
Q1 2025 Added 10.37%
$2.16B
$38.4 Million 0.12% of portfolio
1,337,789
Q1 2025 Reduced 4.41%
$121B
$38.5 Million 0.12% of portfolio
79,332
Q1 2025 Added 2.32%
$9.98B
$38.8 Million 0.12% of portfolio
959,051
Q1 2025 Reduced 33.13%

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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