William Blair Investment Management
$30.3B Assets Reported
459 Holdings
Latest filing 2026-03-31
Top Holdings
| Ticker | Company | Shares | Value | Weight |
|---|---|---|---|---|
| TSM | TAIWAN SEMICONDUCTOR MANUFAC | 5,518,260 | $1.9B | 6.2% |
| NVDA | NVIDIA CORPORATION | 8,941,756 | $1.6B | 5.2% |
| AAPL | APPLE INC | 4,812,433 | $1.2B | 4.0% |
| MSFT | MICROSOFT CORP | 2,896,782 | $1.1B | 3.5% |
| GOOGL | ALPHABET INC | 2,504,605 | $720M | 2.4% |
| AVGO | BROADCOM INC | 2,201,558 | $681M | 2.3% |
| AMZN | AMAZON COM INC | 3,163,629 | $659M | 2.2% |
| META | META PLATFORMS INC | 1,013,122 | $580M | 1.9% |
| MA | MASTERCARD INCORPORATED | 1,060,651 | $530M | 1.8% |
| AZN | ASTRAZENECA PLC | 1,942,155 | $377M | 1.2% |
Track William Blair Investment Management's 13F portfolio: $30.3B in reported holdings, 459 positions. Top holdings, AUM, and quarterly changes on SentiSense.