Terminal · Institutions
Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.
Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (CIK 1644956) reported $30.26B across 411 reported positions in its SEC 13F filing for 2026-03-31. Largest positions: TSM ($1.87B, 6.16%), NVDA ($1.56B, 5.15%), AAPL ($1.22B, 4.04%), MSFT ($1.07B, 3.54%), GOOGL ($720.2M, 2.38%). Source: SEC Form 13F.
| Rank | Ticker | Company | Value | % Portfolio | Shares | Action |
|---|---|---|---|---|---|---|
| 1 | TSM | TAIWAN SEMICONDUCTOR MANUFAC | $1.87B | 6.16% | 5.5M | Trimmed |
| 2 | NVDA | NVIDIA CORPORATION | $1.56B | 5.15% | 8.9M | Trimmed |
| 3 | AAPL | APPLE INC | $1.22B | 4.04% | 4.8M | Trimmed |
| 4 | MSFT | MICROSOFT CORP | $1.07B | 3.54% | 2.9M | Trimmed |
| 5 | GOOGL | ALPHABET INC | $720.2M | 2.38% | 2.5M | Trimmed |
| 6 | AVGO | BROADCOM INC | $681.4M | 2.25% | 2.2M | Trimmed |
| 7 | AMZN | AMAZON COM INC | $658.9M | 2.18% | 3.2M | Trimmed |
| 8 | META | META PLATFORMS INC | $579.6M | 1.92% | 1.0M | Trimmed |
| 9 | MA | MASTERCARD INCORPORATED | $530.0M | 1.75% | 1.1M | Trimmed |
| 10 | AZNCF | ASTRAZENECA PLC | $377.3M | 1.25% | 1.9M | New |
| 11 | LIN | LINDE PLC | $315.5M | 1.04% | 636,338 | Trimmed |
| 12 | CG | CARLYLE GROUP INC | $304.9M | 1.01% | 6.3M | Trimmed |
| 13 | COST | COSTCO WHOLESALE CORPORATION | $301.4M | 1.00% | 302,468 | Trimmed |
| 14 | ITUB | ITAU UNIBANCO HLDG S A | $265.6M | 0.88% | 31.7M | Trimmed |
| 15 | TWST | TWIST BIOSCIENCE CORP | $250.4M | 0.83% | 5.3M | Trimmed |
| 16 | NOW | SERVICENOW INC | $248.0M | 0.82% | 2.4M | Added |
| 17 | PRMB | PRIMO BRANDS CORPORATION | $245.8M | 0.81% | 13.1M | Added |
| 18 | MLI | MUELLER INDS INC | $233.8M | 0.77% | 2.1M | Added |
| 19 | INTU | INTUIT | $230.8M | 0.76% | 533,736 | Added |
| 20 | BAP | CREDICORP LTD | $211.2M | 0.70% | 622,690 | Trimmed |
| 21 | MNST | MONSTER BEVERAGE CORP NEW | $212.7M | 0.70% | 2.9M | Trimmed |
| 22 | AMD | ADVANCED MICRO DEVICES INC | $212.1M | 0.70% | 1.0M | Trimmed |
| 23 | A | AGILENT TECHNOLOGIES INC | $204.7M | 0.68% | 1.8M | Trimmed |
| 24 | ORLY | OREILLY AUTOMOTIVE INC | $204.0M | 0.67% | 2.2M | Trimmed |
| 25 | TRU | TRANSUNION | $200.0M | 0.66% | 2.9M | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31