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 PCTY
Shares Held
Position Value (USD)
25 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $8,333,125 | 77,130 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $15,084,232 | 98,913 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $15,987,363 | 100,379 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $18,475,219 | 101,966 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $19,904,500 | 106,248 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $21,828,799 | 109,434 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $19,177,597 | 116,249 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $16,669,004 | 126,424 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $22,670,911 | 131,915 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $22,182,380 | 134,561 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $25,663,308 | 141,240 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $26,625,833 | 144,290 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $28,932,230 | 145,549 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $29,315,193 | 150,907 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $37,615,213 | 155,705 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $27,689,349 | 158,751 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $36,133,006 | 175,599 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $41,957,602 | 177,666 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $50,404,143 | 179,758 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $34,459,815 | 180,607 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $30,194,715 | 167,907 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $36,973,611 | 179,562 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $29,553,257 | 183,083 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $27,943,478 | 191,538 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $51,657,308 | 584,888 | Shares | Sole | 2020-05-11 | |
| No 13F history on record for this holder in this stock. | ||||||