BLAIR WILLIAM & CO/IL

CIK
902367
City
CHICAGO
State / Country
IL

Top Portfolio Positions

1,174 positions · $28,696,806,188 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
AAPL
Apple Inc.
Technology
5,930,914 $1,505,206,664 5.25%
MSFT
Microsoft Corp
Technology
3,498,110 $1,294,895,378 4.51%
AMZN
Amazon Com Inc
Consumer Cyclical
6,057,938 $1,261,686,747 4.40%
NVDA
Nvidia Corp
Technology
5,427,875 $946,621,400 3.30%
GOOGL
Alphabet Inc.
Communication Services
2,436,117 $700,529,804 2.44%
JPM
Jpmorgan Chase & Co
Financial Services
2,307,253 $678,701,542 2.37%
GEV
GE Vernova Inc.
Industrials
664,603 $580,131,958 2.02%
V
Visa Inc.
Financial Services
1,844,583 $557,506,765 1.94%
SPY
Spdr S&P 500 ETF Trust
845,294 $549,728,499 1.92%
IDXX
Idexx Laboratories Inc /De
Healthcare
946,336 $531,736,735 1.85%

Portfolio Trend

25 quarters · across all stocks

Holdings in III

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Shares Held

Position Value (USD)

25 of 25 shown
Report Date Value (USD) Shares
2026-03-31 $2,932,366 763,637
2025-12-31 $4,507,111 779,777
2025-09-30 $4,842,644 842,199
2025-06-30 $4,206,240 876,300
2025-03-31 $3,445,859 881,294
2024-12-31 $2,762,974 827,238
2024-09-30 $2,751,615 833,823
2024-06-30 $2,424,027 824,499
2024-03-31 $3,286,309 813,443
2023-12-31 $3,610,893 766,644
2023-09-30 $3,261,518 744,639
2023-06-30 $3,865,347 721,147
2023-03-31 $3,629,312 713,028
2022-12-31 $3,169,321 688,983
2022-09-30 $3,240,408 680,758
2022-06-30 $4,505,425 666,483
2022-03-31 $4,479,468 657,778
2021-12-31 $5,003,162 656,583
2021-09-30 $4,742,662 660,538
2021-06-30 $7,511,762 1,284,062
2021-03-31 $5,844,964 1,328,401
2020-12-31 $4,341,411 1,323,601
2020-09-30 $3,203,811 1,518,394
2020-06-30 $3,151,492 1,522,460
2020-03-31 $4,231,240 1,646,397