Blair William & CO Portfolio Holdings

Blair William & CO

  • $36.3 Billion
  • Q3 2025

Blair William & CO has filed its 13F form on November 12, 2025 for Q3 2025 where it was disclosed a total value porftolio of $36.3 Billion distributed in 1844 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Microsoft Corp with a value of $1.87B, Apple Inc. with a value of $1.53B, Amazon Com Inc with a value of $1.32B, Nvidia Corp with a value of $1.05B, and Alphabet Inc. with a value of $766M.

Examining the 13F form we can see an increase of $1.48B in the current position value, from $34.8B to 36.3B.

Blair William & CO is based out at Chicago, IL

Below you can find more details about Blair William & CO portfolio as well as his latest detailed transactions.

Portfolio value $36.3 Billion
Technology: $10.2 Billion
Financial Services: $4.79 Billion
ETFs: $4.76 Billion
Healthcare: $4.08 Billion
Industrials: $4.02 Billion
Consumer Cyclical: $3.01 Billion
Communication Services: $2.39 Billion
Consumer Defensive: $1.35 Billion
Other: $1.66 Billion

Stock Holdings Table

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$3.78T
$1.87 Billion 5.15% of portfolio
3,607,106
Q3 2025 Reduced 2.42%
$4.3T
$1.53 Billion 4.2% of portfolio
5,992,795
Q3 2025 Reduced 0.57%
$2.39T
$1.32 Billion 3.63% of portfolio
6,006,885
Q3 2025 Reduced 1.88%
$465B
$1.05 Billion 2.9% of portfolio
5,645,112
Q3 2025 Added 0.82%
$1.74T
$766 Million 2.11% of portfolio
3,145,955
Q3 2025 Reduced 1.07%
$881B
$728 Million 2.0% of portfolio
2,306,918
Q3 2025 Reduced 0.98%
$533B
$670 Million 1.85% of portfolio
1,962,153
Q3 2025 Reduced 5.26%
$57.4B
$659 Million 1.82% of portfolio
1,031,786
Q3 2025 Reduced 4.51%
$1.65T
$614 Million 1.69% of portfolio
2,525,974
Q3 2025 Added 0.03%
$0
$572 Million 1.58% of portfolio
859,344
Q3 2025 Reduced 0.04%
$512B
$555 Million 1.53% of portfolio
976,597
Q3 2025 Reduced 3.05%
$404B
$511 Million 1.41% of portfolio
551,558
Q3 2025 Reduced 0.08%
$1.37T
$499 Million 1.37% of portfolio
678,857
Q3 2025 Added 17.73%
$181B
$416 Million 1.15% of portfolio
4,247,493
Q3 2025 Reduced 1.77%
$41.2B
$384 Million 1.06% of portfolio
1,289,252
Q3 2025 Added 0.33%
$169B
$367 Million 1.01% of portfolio
399,081
Q3 2025 Added 21.75%
$79.6B
$340 Million 0.94% of portfolio
2,751,514
Q3 2025 Reduced 7.4%
$23.2B
$342 Million 0.94% of portfolio
6,965,564
Q3 2025 Added 2.09%
$136B
$340 Million 0.94% of portfolio
919,505
Q3 2025 Reduced 0.51%
$11.4B
$323 Million 0.89% of portfolio
799,956
Q3 2025 Reduced 0.83%
$367B
$310 Million 0.85% of portfolio
765,895
Q3 2025 Added 0.86%
$0
$299 Million 0.82% of portfolio
446,312
Q3 2025 Added 2.33%
$414B
$293 Million 0.81% of portfolio
1,263,581
Q3 2025 Added 0.49%
$139B
$294 Million 0.81% of portfolio
889,716
Q3 2025 Reduced 4.79%
$84.9B
$291 Million 0.8% of portfolio
1,729,769
Q3 2025 Reduced 1.32%
$160B
$271 Million 0.75% of portfolio
1,366,102
Q3 2025 Reduced 0.7%
$27.7B
$264 Million 0.73% of portfolio
3,128,473
Q3 2025 Added 8.96%
$18.7B
$266 Million 0.73% of portfolio
1,158,043
Q3 2025 Reduced 1.41%
$25.3B
$259 Million 0.71% of portfolio
3,085,052
Q3 2025 Reduced 1.26%
$61.4B
$252 Million 0.69% of portfolio
1,237,864
Q3 2025 Added 6.91%
$279B
$248 Million 0.68% of portfolio
2,406,279
Q3 2025 Reduced 1.18%
$79.5B
$242 Million 0.67% of portfolio
1,935,022
Q3 2025 Reduced 8.18%
$255B
$234 Million 0.64% of portfolio
703,490
Q3 2025 Added 3.67%
$98.1B
$233 Million 0.64% of portfolio
1,361,649
Q3 2025 Added 0.42%
$163B
$227 Million 0.63% of portfolio
316,388
Q3 2025 Added 106.55%
$971B
$229 Million 0.63% of portfolio
299,549
Q3 2025 Reduced 1.62%
$72.7B
$228 Million 0.63% of portfolio
172,649
Q3 2025 Reduced 0.18%
$662B
$224 Million 0.62% of portfolio
445,234
Q3 2025 Added 0.6%
$19.5B
$222 Million 0.61% of portfolio
424,708
Q3 2025 Reduced 0.01%
$16.3B
$220 Million 0.6% of portfolio
1,191,068
Q3 2025 Added 18.68%
$73.7B
$217 Million 0.6% of portfolio
794,143
Q3 2025 Reduced 1.37%
$228B
$214 Million 0.59% of portfolio
1,598,206
Q3 2025 Reduced 0.32%
$9.78B
$213 Million 0.59% of portfolio
4,738,566
Q3 2025 Reduced 6.76%
$46.4B
$213 Million 0.59% of portfolio
882,933
Q3 2025 Reduced 17.26%
$19B
$206 Million 0.57% of portfolio
1,005,955
Q3 2025 Reduced 0.85%
$193B
$205 Million 0.56% of portfolio
458,006
Q3 2025 Reduced 1.72%
$0
$202 Million 0.56% of portfolio
330,019
Q3 2025 Added 8.64%
$55.6B
$199 Million 0.55% of portfolio
1,363,155
Q3 2025 Reduced 16.47%
$72.4B
$189 Million 0.52% of portfolio
529,773
Q3 2025 Reduced 6.73%

Summary

  • Portfolio
  • No. of Stocks 1,844
  • Current Value $36.3 Billion
  • Prior Value $34.8 Billion
  • Filing
  • Period Q3 2025
  • Filing Date November 12, 2025
  • Form Type 13F-HR
  • Activity in Q3 2025
  • New Purchases 101 stocks
  • Additional Purchases 695 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 774 stocks
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