WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK
1644956
City
CHICAGO
State / Country
IL

Top Portfolio Positions

404 positions · $30,195,876,293 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
TSM
Taiwan Semiconductor Manufacturing Co Ltd
Technology
5,518,260 $1,864,895,967 6.18%
NVDA
Nvidia Corp
Technology
8,941,756 $1,559,442,246 5.16%
AAPL
Apple Inc.
Technology
4,812,433 $1,221,347,371 4.04%
MSFT
Microsoft Corp
Technology
2,896,782 $1,072,301,792 3.55%
GOOGL
Alphabet Inc.
Communication Services
2,504,605 $720,224,213 2.39%
AVGO
Broadcom Inc.
Technology
2,201,558 $681,404,216 2.26%
AMZN
Amazon Com Inc
Consumer Cyclical
3,163,629 $658,889,011 2.18%
META
Meta Platforms, Inc.
Communication Services
1,013,122 $579,637,489 1.92%
MA
Mastercard Inc
Financial Services
1,060,651 $529,964,878 1.76%
AZN
Astrazeneca PLC
Healthcare
1,942,155 $383,031,809 1.27%

Portfolio Trend

26 quarters · across all stocks

Holdings in ITGR

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Shares Held

Position Value (USD)

17 of 17 shown
Report Date Value (USD) Shares
2026-03-31 $25,748,888 292,601
2025-12-31 $36,734,808 468,377
2025-09-30 $28,459,251 275,421
2024-06-30 $23,914,108 206,530
2024-03-31 $34,218,393 293,267
2023-12-31 $46,389,553 468,203
2023-09-30 $37,279,504 475,322
2023-06-30 $54,122,190 610,791
2023-03-31 $46,454,352 599,411
2022-12-31 $40,894,512 597,349
2022-09-30 $27,396,695 440,249
2021-06-30 $1,449,832 15,391
2021-03-31 $11,894,991 129,153
2020-12-31 $15,147,861 186,573
2020-09-30 $11,227,537 190,265
2020-06-30 $12,727,063 174,224
2020-03-31 $10,901,935 173,432