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BLAIR WILLIAM & CO/IL
BLAIR WILLIAM & CO/IL is an institution, managing $37.6B across 1,835 long positions as of Q3 2025 with MSFT as the largest holding (5% allocation).
- Portfolio Value
- $37.6B
- Positions
- 1,835
- Top Holding
- MSFT at 4.97%
- Last Reported
- Q3 2025
Top Holdings
Largest long holdings in BLAIR WILLIAM & CO/IL's portfolio (26% of total portfolio)
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| Holding | Sector | Position | Weight | Traded | Ownership |
|---|---|---|---|---|---|
Software - Infrastructure Technology | $1.9B | 4.97% | -$46.4M Sold | 0.05% 3.6M shares | |
Consumer Electronics Technology | $1.5B | 4.06% | -$8.7M Sold | 0.04% 6.0M shares | |
Specialty Retail Consumer Cyclical | $1.3B | 3.51% | -$25.2M Sold | 0.06% 6.0M shares | |
Semiconductors Technology | $1.1B | 2.80% | +$8.6M Bought | 0.02% 5.6M shares | |
Internet Content & Information Communication Services | $766.2M | 2.04% | -$8.3M Sold | 0.03% 3.1M shares | |
Banks - Diversified Financial Services | $727.7M | 1.94% | -$7.2M Sold | 0.08% 2.3M shares | |
Financial - Credit Services Financial Services | $669.8M | 1.78% | -$37.2M Sold | 0.10% 2.0M shares | |
Medical - Diagnostics & Research Healthcare | $659.2M | 1.75% | -$31.1M Sold | 1.29% 1.0M shares | |
Internet Content & Information Communication Services | $614.1M | 1.63% | +$203.7K Bought | 0.02% 2.5M shares | |
ETF ETF | $572.5M | 1.52% | -$213.8K Sold | — 859.3K shares |
Changes
Portfolio activity, position movements, and quarter-over-quarter changes in BLAIR WILLIAM & CO/IL's latest filing
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Net Flows % of MV
Turnover Ratio
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Reduced Holdings
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Decreased Positions
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Analytics
Portfolio insights and performance metrics for BLAIR WILLIAM & CO/IL
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