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 PRMB
Shares Held
Position Value (USD)
6 of 6 shown
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $245,848,095 | 13,056,192 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $206,458,317 | 12,627,420 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $261,539,886 | 11,834,384 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $314,051,470 | 10,602,683 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $404,657,405 | 11,402,012 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $343,450,739 | 11,161,870 | Shares | Sole | 2025-02-10 | |
| No quarters match your search. | ||||||