BLAIR WILLIAM & CO/IL

CIK
0000902367
City
Chicago
State / Country
IL

Top Portfolio Positions

1,033 positions · $30,375,950,295 total · as of Dec 31, 2025
Ticker Company Shares Value (USD) % of Portfolio
MSFT
Microsoft Corp
Technology
3,574,568 $1,728,732,575 5.69%
AAPL
Apple Inc.
Technology
5,949,948 $1,617,552,862 5.33%
AMZN
Amazon Com Inc
Consumer Cyclical
6,064,424 $1,399,790,347 4.61%
NVDA
Nvidia Corp
Technology
5,494,350 $1,024,696,275 3.37%
GOOGL
Alphabet Inc.
Communication Services
2,493,580 $780,490,540 2.57%
JPM
Jpmorgan Chase & Co
Financial Services
2,309,809 $744,266,655 2.45%
IDXX
Idexx Laboratories Inc /De
Healthcare
1,001,375 $677,460,228 2.23%
V
Visa Inc.
Financial Services
1,929,237 $676,602,708 2.23%
SPY
Spdr S&P 500 Etf Trust
857,803 $584,953,021 1.93%
MA
Mastercard Inc
Financial Services
955,188 $545,297,725 1.80%

Portfolio Trend

24 quarters · across all stocks

Holdings in IT

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Shares Held

Position Value (USD)

24 of 24 shown
Report Date Value (USD) Shares
2025-12-31 $30,917,418 122,552
2025-09-30 $31,069,656 118,194
2025-06-30 $16,000,644 39,584
2025-03-31 $17,169,884 40,906
2024-12-31 $20,437,851 42,186
2024-09-30 $20,503,509 40,460
2024-06-30 $18,320,749 40,798
2024-03-31 $42,208,651 88,549
2023-12-31 $41,829,174 92,725
2023-09-30 $31,813,475 92,586
2023-06-30 $31,733,882 90,588
2023-03-31 $29,870,502 91,692
2022-12-31 $31,863,046 94,791
2022-09-30 $14,756,154 53,331
2022-06-30 $11,803,480 48,809
2022-03-31 $12,400,809 41,689
2021-12-31 $14,151,765 42,330
2021-09-30 $12,971,421 42,686
2021-06-30 $10,154,235 41,925
2021-03-31 $8,200,876 44,924
2020-12-31 $6,836,588 42,678
2020-09-30 $5,305,127 42,458
2020-06-30 $5,082,877 41,893
2020-03-31 $4,406,271 44,253