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WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
hedge fundUpdated 29 days agoManaged by William Blair Investment Management, Llc • Latest filing Q2 2026
Portfolio value
$33.3B
Q2 2026
Filings
14
Quarterly 13F history
Top-10 concentration
100.0%
Weight of largest holdings
Annualized return
8.4%
Implied from 13F holdings
Portfolio value history
13F-disclosed portfolio value over 14 quarters
Show data table
| Period | Portfolio value |
|---|---|
| Q1 2023 | $28.7B |
| Q2 2023 | $31.2B |
| Q3 2023 | $30.1B |
| Q4 2023 | $34.4B |
| Q1 2024 | $38.7B |
| Q2 2024 | $38.1B |
| Q3 2024 | $40.5B |
| Q4 2024 | $40.9B |
| Q1 2025 | $35.6B |
| Q2 2025 | $37.7B |
| Q3 2025 | $38.7B |
| Q4 2025 | $35.9B |
| Q1 2026 | $30.3B |
| Q2 2026 | $33.3B |
Top holdings
403 positions as of Q2 2026
| # | Stock | Value | Shares | % Portfolio | Change |
|---|---|---|---|---|---|
| 1 | T TSMWF TAIWAN SEMICONDUCTOR MANUFAC | $2.4B | 4.94M | 7.09% | — |
| 2 | N NVDA NVIDIA CORPORATION | $1.7B | 8.60M | 5.17% | — |
| 3 | G GOOGN ALPHABET INC | $1.1B | 3.19M | 3.43% | — |
| 4 | A AAPL APPLE INC | $943.3M | 3.26M | 2.84% | — |
| 5 | A AVGO BROADCOM INC | $776.7M | 2.06M | 2.34% | — |
| 6 | M MSFT MICROSOFT CORP | $764.2M | 2.05M | 2.30% | — |
| 7 | M META META PLATFORMS INC | $535.2M | 950.1K | 1.61% | — |
| 8 | A AMZN AMAZON COM INC | $473.6M | 1.99M | 1.42% | — |
| 9 | M MA MASTERCARD INCORPORATED | $471.5M | 918.0K | 1.42% | — |
| 10 | A AMD ADVANCED MICRO DEVICES INC | $443.5M | 763.5K | 1.33% | — |
| 11 | A AMAT APPLIED MATLS INC | $360M | 497.9K | 1.08% | — |
| 12 | G GE GE AEROSPACE | $295.5M | 790.8K | 0.89% | — |
| 13 | A AZN ASTRAZENECA PLC | $283.2M | 1.51M | 0.85% | — |
| 14 | P PRMB PRIMO BRANDS CORPORATION | $279.3M | 11.43M | 0.84% | — |
| 15 | E ET-PI EVERPURE INC | $272.2M | 3.46M | 0.82% | — |
| 16 | A APH AMPHENOL CORP | $270.7M | 1.54M | 0.81% | — |
| 17 | L LIN LINDE PLC | $262M | 505.0K | 0.79% | — |
| 18 | O ONTO ONTO INNOVATION INC | $251.8M | 665.4K | 0.76% | — |
| 19 | B BWA BORGWARNER INC | $251.3M | 3.78M | 0.76% | — |
| 20 | C CGABL CARLYLE GROUP INC | $249.1M | 5.91M | 0.75% | — |