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
$3.75T
$1.55 Billion 4.73% of portfolio
4,127,203
Q1 2025 Reduced 6.86%
$406B
$1.32 Billion 4.04% of portfolio
12,197,638
Q1 2025 Reduced 8.15%
$1.2T
$1.22 Billion 3.73% of portfolio
7,361,683
Q1 2025 Reduced 4.67%
$2.27T
$1.16 Billion 3.56% of portfolio
6,118,131
Q1 2025 Reduced 10.48%
$3.39T
$1.16 Billion 3.55% of portfolio
5,239,398
Q1 2025 Added 2.64%
$1.62T
$906 Million 2.77% of portfolio
1,572,230
Q1 2025 Reduced 5.5%
$539B
$666 Million 2.03% of portfolio
1,215,314
Q1 2025 Reduced 15.39%
$20.5B
$531 Million 1.62% of portfolio
12,171,478
Q1 2025 Reduced 8.14%
$113B
$515 Million 1.57% of portfolio
3,078,817
Q1 2025 Added 375.41%
$125B
$499 Million 1.52% of portfolio
255,567
Q1 2025 Reduced 1.13%
$85.8B
$480 Million 1.47% of portfolio
3,678,011
Q1 2025 Added 64.7%
$11.3B
$385 Million 1.18% of portfolio
6,803,733
Q1 2025 Added 1.98%
$5.81B
$371 Million 1.13% of portfolio
258,834
Q1 2025 Added 10.02%
$217B
$353 Million 1.08% of portfolio
575,615
Q1 2025 Reduced 1.37%
$1.55B
$342 Million 1.04% of portfolio
6,802,345
Q1 2025 Added 9.26%
$435B
$334 Million 1.02% of portfolio
353,579
Q1 2025 Added 4.86%
$5.86B
$293 Million 0.9% of portfolio
2,319,593
Q1 2025 Reduced 5.98%
$271B
$291 Million 0.89% of portfolio
1,083,678
Q1 2025 Reduced 8.0%
$205B
$292 Million 0.89% of portfolio
366,852
Q1 2025 Reduced 9.23%
$6.75B
$281 Million 0.86% of portfolio
2,211,097
Q1 2025 Reduced 6.72%
$19.8B
$282 Million 0.86% of portfolio
5,423,002
Q1 2025 Added 7.1%
$18B
$278 Million 0.85% of portfolio
3,344,290
Q1 2025 Reduced 0.78%
$7.03B
$272 Million 0.83% of portfolio
441,550
Q1 2025 Reduced 6.75%
$45B
$268 Million 0.82% of portfolio
637,111
Q1 2025 Added 50.93%
$6.99B
$266 Million 0.81% of portfolio
4,584,467
Q1 2025 Reduced 26.36%
$14.5B
$260 Million 0.8% of portfolio
702,337
Q1 2025 Added 9.26%
$89.7B
$258 Million 0.79% of portfolio
603,138
Q1 2025 Added 1.43%
$5.72B
$247 Million 0.75% of portfolio
2,216,265
Q1 2025 Reduced 16.07%
$16.1B
$239 Million 0.73% of portfolio
5,062,075
Q1 2025 Added 4.1%
$139B
$237 Million 0.72% of portfolio
430,398
Q1 2025 Added 64.74%
$1.3B
$237 Million 0.72% of portfolio
8,839,660
Q1 2025 Reduced 6.07%
$33B
$231 Million 0.71% of portfolio
1,770,553
Q1 2025 Reduced 2.18%
$3.03B
$231 Million 0.71% of portfolio
5,372,198
Q1 2025 Reduced 16.48%
$2.41B
$223 Million 0.68% of portfolio
5,562,470
Q1 2025 Added 13.34%
$35.9B
$216 Million 0.66% of portfolio
1,850,388
Q1 2025 Added 11.45%
$3.61B
$218 Million 0.66% of portfolio
9,282,825
Q1 2025 Reduced 14.05%
$191B
$212 Million 0.65% of portfolio
2,914,700
Q1 2025 Reduced 21.7%
$12.7B
$208 Million 0.63% of portfolio
1,200,011
Q1 2025 Added 75.95%
$61.7B
$203 Million 0.62% of portfolio
1,189,698
Q1 2025 Reduced 5.85%
$184B
$189 Million 0.58% of portfolio
1,674,195
Q1 2025 Added 186.25%
$4.38B
$191 Million 0.58% of portfolio
2,219,578
Q1 2025 Reduced 4.48%
$1.5B
$186 Million 0.57% of portfolio
3,929,979
Q1 2025 Reduced 23.72%
$11.7B
$179 Million 0.55% of portfolio
1,763,468
Q1 2025 Reduced 5.3%
$24.1B
$179 Million 0.55% of portfolio
308,559
Q1 2025 Added 2,748.85%
$4.82B
$179 Million 0.55% of portfolio
2,355,971
Q1 2025 Reduced 7.15%
$9.22B
$176 Million 0.54% of portfolio
2,292,632
Q1 2025 Reduced 10.64%
$41.5B
$177 Million 0.54% of portfolio
1,785,749
Q1 2025 Added 47.36%
$13.1B
$176 Million 0.54% of portfolio
2,313,217
Q1 2025 Reduced 4.94%
$8.89B
$178 Million 0.54% of portfolio
1,843,687
Q1 2025 Reduced 8.87%

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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