BLAIR WILLIAM & CO/IL
Top Portfolio Positions
1,180 positions ·
$28,862,391,577 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| AAPL |
Apple Inc.
Technology
|
5,930,914 | $1,505,206,664 | 5.22% | |
| MSFT |
Microsoft Corp
Technology
|
3,498,110 | $1,294,895,378 | 4.49% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
6,057,938 | $1,261,686,747 | 4.37% | |
| NVDA |
Nvidia Corp
Technology
|
5,427,875 | $946,621,400 | 3.28% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
2,436,117 | $700,529,804 | 2.43% | |
| JPM |
Jpmorgan Chase & Co
Financial Services
|
2,307,253 | $678,701,542 | 2.35% | |
| GEV |
GE Vernova Inc.
Industrials
|
664,603 | $580,131,958 | 2.01% | |
| V |
Visa Inc.
Financial Services
|
1,844,583 | $557,506,765 | 1.93% | |
| SPY |
Spdr S&P 500 ETF Trust
|
845,294 | $549,728,499 | 1.90% | |
| IDXX |
Idexx Laboratories Inc /De
Healthcare
|
946,336 | $531,736,735 | 1.84% |
Portfolio Trend
25 quarters · across all stocks
Holdings in OSW
Shares Held
Position Value (USD)
25 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,336,700 | 145,390 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $3,136,966 | 151,252 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $3,219,135 | 152,277 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $3,086,087 | 151,353 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $2,885,798 | 171,876 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $3,503,872 | 176,074 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $309,810 | 18,765 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $296,103 | 19,265 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $260,167 | 19,665 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $340,021 | 24,115 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $338,451 | 30,165 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $516,246 | 42,665 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $504,479 | 42,075 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $204,606 | 21,930 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $175,812 | 20,930 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $150,068 | 20,930 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $111,486 | 10,930 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $109,518 | 10,930 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $111,713 | 11,205 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $108,576 | 11,205 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $119,333 | 11,205 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $292,082 | 28,805 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $337,675 | 51,950 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $451,304 | 94,613 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $1,515,508 | 373,278 | Shares | Sole | 2020-05-11 | |
| No 13F history on record for this holder in this stock. | ||||||