WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Top Portfolio Positions
404 positions ·
$30,335,994,855 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| TSM |
Taiwan Semiconductor Manufacturing Co Ltd
Technology
|
5,518,260 | $1,864,895,967 | 6.15% | |
| NVDA |
Nvidia Corp
Technology
|
8,941,756 | $1,559,442,246 | 5.14% | |
| AAPL |
Apple Inc.
Technology
|
4,812,433 | $1,221,347,371 | 4.03% | |
| MSFT |
Microsoft Corp
Technology
|
2,896,782 | $1,072,301,792 | 3.53% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
2,504,605 | $720,224,213 | 2.37% | |
| AVGO |
Broadcom Inc.
Technology
|
2,201,558 | $681,404,216 | 2.25% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
3,163,629 | $658,889,011 | 2.17% | |
| META |
Meta Platforms, Inc.
Communication Services
|
1,013,122 | $579,637,489 | 1.91% | |
| MA |
Mastercard Inc
Financial Services
|
1,060,651 | $529,964,878 | 1.75% | |
| AZN |
Astrazeneca PLC
Healthcare
|
1,942,155 | $383,031,809 | 1.26% |
Portfolio Trend
25 quarters · across all stocks
Holdings in HR
Shares Held
Position Value (USD)
15 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $22,343,481 | 1,315,096 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $36,181,131 | 2,134,580 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $41,259,689 | 2,288,391 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $36,141,910 | 2,278,809 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $38,275,018 | 2,264,794 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $32,090,841 | 1,893,265 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $34,353,775 | 1,892,770 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $31,298,535 | 1,899,183 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $26,707,955 | 1,887,488 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $35,734,141 | 2,073,949 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $34,975,385 | 2,290,464 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $38,889,866 | 2,062,029 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $34,067,462 | 1,762,414 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $25,873,173 | 1,342,666 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $26,172,733 | 1,255,287 | Shares | Sole | 2022-11-09 | |
| No 13F history on record for this holder in this stock. | ||||||