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 ARGX

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Shares Held

Position Value (USD)

25 of 25 shown
Report Date Value (USD) Shares
2026-03-31 $16,362,711 22,407
2025-12-31 $22,150,622 26,340
2025-09-30 $1,757,605 2,383
2025-06-30 $1,273,318 2,310
2025-03-31 $1,230,487 2,079
2024-12-31 $562,110 914
2024-09-30 $498,713 920
2024-06-30 $391,766 911
2024-03-31 $568,925 1,445
2023-12-31 $814,120 2,140
2023-09-30 $923,772 1,879
2023-06-30 $670,335 1,720
2023-03-31 $389,346 1,045
2022-12-31 $537,938 1,420
2022-09-30 $557,112 1,578
2022-06-30 $596,736 1,575
2022-03-31 $496,613 1,575
2021-12-31 $555,751 1,587
2021-09-30 $475,650 1,575
2021-06-30 $474,185 1,575
2021-03-31 $433,739 1,575
2020-12-31 $463,191 1,575
2020-09-30 $413,469 1,575
2020-06-30 $354,737 1,575
2020-03-31 $207,474 1,575