WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Institutional investor · Portfolio as of Q3 2021
Top Holdings431 positions
Stock | Shares | Value | Weight | Avg Buy | Est. P&L | Held | Conviction |
|---|---|---|---|---|---|---|---|
TAIWAN SEMICONDUCTOR SPONSORED ADR /1 ADR REPS 5 ORD SHS/ | 11M | $1.2B | 3.5% | $37.07 | +180.14% | 12 qtrssince 2018-Q4 | Increased 59 |
MICROSOFT CORP | 1.9M | $530.6M | 1.5% | $143.80 | +90.74% | 12 qtrssince 2018-Q4 | Decreased 0 |
SEA LTD-ADR | 1.6M | $511.1M | 1.4% | $102.73 | +203.48% | 10 qtrssince 2019-Q2 | Increased 54 |
MERCADOLIBRE INC | 300,376 | $504.5M | 1.4% | $841.53 | +97.61% | 10 qtrssince 2019-Q2 | Increased 55 |
BUILDERS FIRSTSOURCE INC | 8.5M | $439.4M | 1.2% | $38.50 | +40.07% | 5 qtrssince 2020-Q3 | Increased 49 |
CANADIAN NATL RAILWAY CO | 3.6M | $418.3M | 1.2% | $72.82 | +46.36% | 12 qtrssince 2018-Q4 | Decreased 0 |
AMAZON.COM INC | 122,696 | $403.1M | 1.1% | $88.93 | +85.61% | 12 qtrssince 2018-Q4 | Decreased 0 |
DYNATRACE INC | 5.6M | $398.6M | 1.1% | $50.55 | +38.76% | 3 qtrssince 2021-Q1 | Decreased 0 |
ALPHABET INC-CL A | 147,079 | $393.2M | 1.1% | $55.44 | +140.55% | 12 qtrssince 2018-Q4 | Decreased 0 |
BWX TECHNOLOGIES INC | 7.3M | $390.7M | 1.1% | $37.76 | +35.24% | 12 qtrssince 2018-Q4 | Decreased 0 |
CHARLES RIVER LABORATORIES | 942,596 | $389M | 1.1% | $279.38 | +51.44% | 5 qtrssince 2020-Q3 | Decreased 0 |
PURE STORAGE INC - CLASS A | 15.5M | $388.9M | 1.1% | $16.94 | +49.21% | 12 qtrssince 2018-Q4 | Decreased 0 |
AZENTA INC | 3.8M | $385.6M | 1.1% | $34.84 | +196.65% | 7 qtrssince 2020-Q1 | Decreased 0 |
NICE LTD - SPON ADR | 1.3M | $382.3M | 1.1% | $131.92 | +112.75% | 12 qtrssince 2018-Q4 | Increased 50 |
STATE STREET SPDR S&P 500 ETF TRUST CL USD INC | 835,250 | $358.4M | 1.0% | $231.03 | +77.26% | 12 qtrssince 2018-Q4 | Decreased 0 |
HORIZON THERAPEUTICS PLC | 3.1M | $341.5M | 1.0% | — | — | 10 qtrssince 2019-Q2 | Decreased 0 |
CROWN HOLDINGS INC | 3.4M | $338.7M | 1.0% | $62.91 | +51.64% | 11 qtrssince 2019-Q1 | Decreased 0 |
NEBIUS GROUP NV | 4.2M | $336.6M | 0.9% | — | — | 12 qtrssince 2018-Q4 | Increased 45 |
AXON ENTERPRISE INC | 1.9M | $328.9M | 0.9% | $95.69 | +83.03% | 5 qtrssince 2020-Q3 | Decreased 0 |
BRINK'S CO/THE | 5.1M | $325.1M | 0.9% | $59.18 | +1.14% | 12 qtrssince 2018-Q4 | Decreased 0 |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC manages $35.5B across 431 positions as of Q3 2021. Top holdings: TSM (3.5%), MSFT (1.5%), SE (1.4%). Fund DNA: Steady Compounder. HoldingsIntel Rating: 2.5/5.0.
Active quarter - 55 new positions, 89 exits, 211 increased. Top move: TSM (INCREASED, conviction 59). Portfolio: $35.5B across 431 positions.
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Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.
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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer