BLAIR WILLIAM & CO/IL
Top Portfolio Positions
1,179 positions ·
$28,935,290,692 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 | 5.20% | |
| MSFT |
Microsoft Corp
Technology
|
3,498,110 | $1,294,895,378 | 4.48% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
6,057,938 | $1,261,686,747 | 4.36% | |
| NVDA |
Nvidia Corp
Technology
|
5,427,875 | $946,621,400 | 3.27% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
2,436,117 | $700,529,804 | 2.42% | |
| JPM |
Jpmorgan Chase & Co
Financial Services
|
2,307,253 | $678,701,542 | 2.35% | |
| GEV |
GE Vernova Inc.
Industrials
|
664,603 | $580,131,958 | 2.00% | |
| 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 AMT
Shares Held
Position Value (USD)
24 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $81,134,690 | 470,128 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $119,079,299 | 678,244 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $150,403,471 | 782,048 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $170,886,917 | 773,174 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $169,116,326 | 777,189 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $144,985,054 | 790,497 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $185,118,922 | 796,005 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $150,569,663 | 774,615 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $150,436,529 | 761,357 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $152,020,968 | 704,192 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $111,356,659 | 677,146 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $142,911,670 | 736,886 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $145,331,512 | 711,224 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $151,207,448 | 713,714 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $156,891,595 | 730,748 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $187,818,522 | 734,843 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $184,428,389 | 734,131 | Shares | Sole | 2022-05-13 | |
| 2021-09-30 | $193,483,624 | 728,999 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $193,176,843 | 715,099 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $169,166,984 | 707,634 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $150,994,915 | 672,703 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $156,338,635 | 646,749 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $166,554,053 | 644,210 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $136,457,174 | 626,669 | Shares | Sole | 2020-05-11 | |
| No 13F history on record for this holder in this stock. | ||||||