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 MRCY
Shares Held
Position Value (USD)
25 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $5,744,651 | 78,791 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $6,116,193 | 83,772 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $6,232,248 | 80,520 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $6,735,031 | 125,047 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $5,695,119 | 132,168 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $5,713,638 | 136,039 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $5,816,141 | 157,193 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $2,085,544 | 77,271 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $3,501,030 | 118,679 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $4,493,867 | 122,884 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $4,844,213 | 130,607 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $5,098,254 | 147,391 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $8,373,864 | 163,808 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $7,682,573 | 171,716 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $7,069,799 | 174,133 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $11,557,785 | 179,664 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $12,235,639 | 189,847 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $10,290,493 | 186,896 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $25,592,194 | 539,692 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $50,040,008 | 754,979 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $56,968,768 | 806,352 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $65,537,334 | 744,235 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $52,431,434 | 676,884 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $42,587,703 | 541,415 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $34,563,873 | 484,495 | Shares | Sole | 2020-05-11 | |
| No 13F history on record for this holder in this stock. | ||||||