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 CTAS
Shares Held
Position Value (USD)
25 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $164,666,754 | 973,553 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $187,132,847 | 995,017 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $206,482,323 | 1,005,955 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $226,118,330 | 1,014,575 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $205,242,874 | 998,603 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $184,965,114 | 1,012,398 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $205,644,679 | 998,857 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $45,600,931 | 260,480 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $46,335,020 | 269,770 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $41,797,634 | 277,421 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $33,599,390 | 279,407 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $35,581,483 | 286,324 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $33,145,932 | 286,556 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $32,755,434 | 290,115 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $28,307,882 | 291,691 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $27,442,502 | 293,872 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $31,959,550 | 300,520 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $32,709,712 | 295,234 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $27,811,876 | 292,249 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $27,455,772 | 287,495 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $22,875,193 | 268,087 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $22,787,036 | 257,874 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $20,304,710 | 244,025 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $10,742,232 | 161,319 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $7,434,342 | 171,674 | Shares | Sole | 2020-05-11 | |
| No 13F history on record for this holder in this stock. | ||||||