BLAIR WILLIAM & CO/IL
Institutional investor · Portfolio as of Q4 2023
Top Holdings1,785 positions
Microsoft Corp | 3.7M | $1.4B | 4.7% | $109.63 | +235.83% | 21 qtrssince 2018-Q4 | Increased 59 |
Apple Inc | 6.2M | $1.2B | 4.1% | $47.08 | +303.97% | 21 qtrssince 2018-Q4 | Decreased 0 |
Amazon.com Inc | 5.8M | $885.8M | 3.0% | $91.41 | +66.23% | 21 qtrssince 2018-Q4 | Increased 59 |
IDEXX Laboratories Inc | 1.2M | $666.8M | 2.3% | $189.80 | +192.44% | 21 qtrssince 2018-Q4 | Increased 54 |
Visa Inc | 2.2M | $570.8M | 1.9% | $129.57 | +96.83% | 21 qtrssince 2018-Q4 | Decreased 0 |
DexCom Inc | 4.5M | $554.4M | 1.9% | $43.40 | +185.93% | 21 qtrssince 2018-Q4 | Decreased 0 |
Mastercard Inc | 1.2M | $507.4M | 1.7% | $201.84 | +107.88% | 21 qtrssince 2018-Q4 | Decreased 0 |
Alphabet Inc | 3.5M | $491.8M | 1.7% | $57.19 | +144.11% | 21 qtrssince 2018-Q4 | Decreased 0 |
Zoetis Inc | 2.5M | $486.2M | 1.7% | $91.70 | +107.09% | 21 qtrssince 2018-Q4 | Increased 50 |
Workday Inc | 1.6M | $429.1M | 1.5% | $173.86 | +58.78% | 21 qtrssince 2018-Q4 | Decreased 0 |
Adobe Systems Inc | 680,445 | $406M | 1.4% | $248.36 | +140.22% | 21 qtrssince 2018-Q4 | Decreased 0 |
Danaher Corp | 1.7M | $399M | 1.4% | $107.25 | +112.16% | 21 qtrssince 2018-Q4 | Increased 50 |
CoStar Group Inc | 4.4M | $383.9M | 1.3% | $52.17 | +67.50% | 21 qtrssince 2018-Q4 | Increased 51 |
Costco Wholesale Corp | 573,586 | $378.6M | 1.3% | $290.05 | +124.09% | 21 qtrssince 2018-Q4 | Increased 50 |
JPMorgan Chase & Co | 2.2M | $376.8M | 1.3% | $96.22 | +66.71% | 21 qtrssince 2018-Q4 | Increased 50 |
Alphabet Inc | 2.6M | $356.9M | 1.2% | $62.47 | +121.49% | 21 qtrssince 2018-Q4 | Increased 50 |
SPDR S&P 500 ETF Trust | 731,206 | $347.5M | 1.2% | $283.39 | +62.41% | 21 qtrssince 2018-Q4 | Increased 51 |
Watsco Inc | 775,524 | $332.3M | 1.1% | $153.19 | +159.75% | 21 qtrssince 2018-Q4 | Increased 49 |
Pool Corp | 796,010 | $317.4M | 1.1% | $266.46 | +42.48% | 21 qtrssince 2018-Q4 | Increased 50 |
Veeva Systems Inc | 1.5M | $281.2M | 1.0% | $90.61 | +112.47% | 21 qtrssince 2018-Q4 | Decreased 0 |
BLAIR WILLIAM & CO/IL manages $29.3B across 1785 positions as of Q4 2023. Top holdings: MSFT (4.7%), AAPL (4.1%), AMZN (3.0%). Fund DNA: Balanced Allocator. HoldingsIntel Score: 4.5/5.0.
Active quarter - 86 new positions, 92 exits, 625 increased. Top move: MSFT (INCREASED, conviction 59). Portfolio: $29.3B across 1785 positions.
Top holdings by portfolio weight
Portfolio allocation by GICS sector
Behavioral investing profile
Position Outcomes
Best and worst performing positions by estimated return
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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
Verify source filings on SEC EDGAR