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 BDC
Shares Held
Position Value (USD)
22 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $21,878,330 | 190,528 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $25,076,082 | 215,153 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $28,539,589 | 237,296 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $29,140,027 | 251,641 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $27,270,205 | 272,022 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $32,165,244 | 285,634 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $47,867,634 | 408,671 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $39,499,461 | 421,103 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $39,100,219 | 422,203 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $32,581,114 | 421,762 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $37,612,404 | 389,564 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $40,392,325 | 422,293 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $35,958,095 | 414,407 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $53,717,137 | 747,109 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $51,559,340 | 859,036 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $51,832,668 | 973,018 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $55,455,843 | 1,001,008 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $66,714,043 | 1,014,971 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $64,317,933 | 1,103,981 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $1,007,607 | 19,925 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $6,799,258 | 153,240 | Shares | Sole | 2021-05-13 | |
| 2020-03-31 | $3,735,867 | 103,544 | Shares | Sole | 2020-05-08 | |
| No 13F history on record for this holder in this stock. | ||||||