WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
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
Holdings in POOL
Shares Held
Position Value (USD)
16 of 16 shown
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $91,508,396 | 452,273 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $118,912,485 | 519,836 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $172,160,166 | 555,230 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $170,897,638 | 586,310 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $163,930,193 | 514,937 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $188,696,993 | 553,461 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $214,263,552 | 568,640 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $177,222,459 | 576,652 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $261,487,368 | 648,048 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $265,842,683 | 666,757 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $216,038,035 | 606,678 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $204,898,483 | 546,921 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $183,757,070 | 536,611 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $174,862,834 | 578,384 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $194,534,183 | 611,339 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $106,850,488 | 304,218 | Shares | Sole | 2022-08-10 | |
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