WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Institutional investor · Portfolio as of Q2 2021
Top Holdings465 positions
Stock | Shares | Value | Weight | Avg Buy | Est. P&L | Held | Conviction |
|---|---|---|---|---|---|---|---|
TAIWAN SEMICONDUCTOR SPONSORED ADR /1 ADR REPS 5 ORD SHS/ | 10.8M | $1.3B | 4.1% | $35.97 | +209.66% | 11 qtrssince 2018-Q4 | Increased 61 |
STATE STREET SPDR S&P 500 ETF TRUST CL USD INC | 1.3M | $556.4M | 1.7% | $231.03 | +73.95% | 11 qtrssince 2018-Q4 | Decreased 0 |
MICROSOFT CORP | 2M | $531.7M | 1.7% | $143.80 | +81.93% | 11 qtrssince 2018-Q4 | Increased 50 |
AMAZON.COM INC | 127,552 | $438.8M | 1.4% | $88.93 | +93.88% | 11 qtrssince 2018-Q4 | Increased 50 |
BWX TECHNOLOGIES INC | 7.4M | $427.5M | 1.3% | $37.76 | +45.39% | 11 qtrssince 2018-Q4 | Decreased 0 |
MERCADOLIBRE INC | 269,527 | $419.9M | 1.3% | $747.51 | +111.77% | 9 qtrssince 2019-Q2 | Decreased 0 |
HORIZON THERAPEUTICS PLC | 4.4M | $411.4M | 1.3% | — | — | 9 qtrssince 2019-Q2 | Increased 52 |
SEA LTD-ADR | 1.5M | $406.4M | 1.3% | $85.30 | +236.69% | 9 qtrssince 2019-Q2 | Increased 50 |
BRINK'S CO/THE | 5.3M | $403.7M | 1.3% | $59.18 | +22.45% | 11 qtrssince 2018-Q4 | Decreased 0 |
ALPHABET INC-CL A | 158,841 | $387.9M | 1.2% | $55.44 | +118.92% | 11 qtrssince 2018-Q4 | Decreased 0 |
CANADIAN NATL RAILWAY CO | 3.6M | $382.8M | 1.2% | $72.82 | +33.93% | 11 qtrssince 2018-Q4 | Decreased 0 |
AZENTA INC | 3.8M | $363.2M | 1.1% | $34.84 | +176.36% | 6 qtrssince 2020-Q1 | Decreased 0 |
CHARLES RIVER LABORATORIES | 978,478 | $362M | 1.1% | $279.38 | +33.03% | 4 qtrssince 2020-Q3 | Decreased 0 |
BUILDERS FIRSTSOURCE INC | 8.4M | $359.4M | 1.1% | $38.37 | +10.94% | 4 qtrssince 2020-Q3 | Increased 68 |
CROWN HOLDINGS INC | 3.4M | $347.7M | 1.1% | $62.91 | +53.48% | 10 qtrssince 2019-Q1 | Decreased 0 |
EURONET WORLDWIDE INC | 2.5M | $343.9M | 1.1% | $107.91 | +26.09% | 11 qtrssince 2018-Q4 | Increased 58 |
AXON ENTERPRISE INC | 1.9M | $340.6M | 1.1% | $95.69 | +81.99% | 4 qtrssince 2020-Q3 | Increased 52 |
MARTIN MARIETTA MATERIALS | 968,012 | $340.6M | 1.1% | $166.53 | +105.72% | 11 qtrssince 2018-Q4 | Decreased 0 |
GENERAC HOLDINGS INC | 813,574 | $337.8M | 1.1% | $110.96 | +269.88% | 7 qtrssince 2019-Q4 | Decreased 0 |
DYNATRACE INC | 5.7M | $333.7M | 1.0% | $50.55 | +19.91% | 2 qtrssince 2021-Q1 | Increased 64 |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC manages $31.9B across 465 positions as of Q2 2021. Top holdings: TSM (4.1%), SPY (1.7%), MSFT (1.7%). Fund DNA: Steady Compounder. HoldingsIntel Rating: 2.5/5.0.
Active quarter - 114 new positions, 16 exits, 101 increased. Top move: BLDR (INCREASED, conviction 68). Portfolio: $31.9B across 465 positions.
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Position Outcomes
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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