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 PDFS
Shares Held
Position Value (USD)
24 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $41,069,334 | 1,255,559 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $38,757,462 | 1,358,481 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $34,842,566 | 1,349,441 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $25,379,834 | 1,187,083 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $21,517,076 | 1,125,959 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $28,801,827 | 1,063,583 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $28,584,135 | 902,277 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $27,053,441 | 743,635 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $21,981,324 | 652,846 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $20,824,695 | 647,937 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $18,011,289 | 555,904 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $31,444,847 | 697,225 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $33,280,480 | 784,917 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $23,952,236 | 839,840 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $20,488,952 | 835,261 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $17,065,238 | 793,363 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $21,886,366 | 785,302 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $34,923,031 | 1,098,554 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $26,255,001 | 1,139,540 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $14,299,206 | 786,535 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $14,299,529 | 804,248 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $16,084,936 | 744,673 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $11,849,772 | 633,339 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $9,371,430 | 479,112 | Shares | Sole | 2020-08-12 | |
| No 13F history on record for this holder in this stock. | ||||||