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 OC
Shares Held
Position Value (USD)
17 of 17 shown
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $11,305,959 | 104,472 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $18,757,570 | 167,613 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $25,362,080 | 179,288 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $24,621,993 | 179,043 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $25,459,664 | 178,264 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $31,135,177 | 182,804 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $32,363,706 | 183,343 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $31,817,860 | 183,156 | Shares | Sole | 2024-08-08 | |
| 2022-12-31 | $713,790 | 8,368 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $801,822 | 10,200 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $14,671,617 | 197,438 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $20,012,056 | 218,711 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $25,286,786 | 279,412 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $28,892,074 | 337,919 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $32,776,528 | 334,796 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $22,497,771 | 244,302 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $16,769,930 | 221,356 | Shares | Sole | 2021-02-09 | |
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