Blair William & Co reported 1,246 positions worth $31.40B for the quarter ended Jun 30, 2026, up 8.2% on the prior quarter. It opened 138 new positions, added to 589, trimmed 498 and exited 54. Its largest holding is Apple Inc. at 5.3% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Trade Value | Weight |
|---|---|---|---|
| HONA Honeywell Aerospace Inc. | +454.1K | $100.39M | 0.32% |
| ANET Arista Networks, Inc. | +453.5K +39.4% | $77.04M | 0.868% |
| HON Honeywell International Inc | +306.5K +207.2% | $68.62M | 0.324% |
| NOW ServiceNow, Inc. | +439.0K +24.4% | $43.59M | 0.708% |
| MIAX Miami International Holdings, Inc. | +1.10M +165.8% | $41.01M | 0.209% |
| ASML Asml Holding Nv | +18.5K +149.0% | $36.79M | 0.196% |
| TWLO Twilio Inc | +147.7K +64.6% | $30.48M | 0.247% |
| SXI Standex International Corp | +83.7K +477.2% | $29.92M | 0.115% |
| LLY ELI LILLY & Co | +23.1K +7.1% | $27.68M | 1.33% |
| TSM Taiwan Semiconductor Manufacturing Co Ltd | +53.9K +39.1% | $25.74M | 0.292% |
| Holding | Change | Trade Value | Weight |
|---|---|---|---|
| XOM ExxonMobil Holdings Corp | -946.4K -100.0% | $160.56M | Exited |
| DHR Danaher Corp | -325.7K -25.1% | $62.04M | 0.589% |
| AAPL Apple Inc. | -199.4K -3.4% | $57.70M | 5.28% |
| MRVL Marvell Technology, Inc. | -193.4K -26.7% | $57.62M | 0.503% |
| VEEV Veeva Systems Inc | -316.7K -29.7% | $56.21M | 0.424% |
| CPRT Copart Inc | -1.92M -47.1% | $54.10M | 0.193% |
| SYK Stryker Corp | -163.3K -19.3% | $51.42M | 0.686% |
| VRSK Verisk Analytics, Inc. | -276.7K -72.8% | $49.68M | 0.059% |
| AMZN Amazon Com Inc | -182.8K -3.0% | $43.57M | 4.46% |
| RYAN Ryan Specialty Holdings, Inc. | -1.13M -69.0% | $42.79M | 0.061% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| HONA Honeywell Aerospace Inc. | +454.1K | $100.39M | 0.32% |
| PTRN Pattern Group Inc. | +703.6K | $17.72M | 0.056% |
| SPCX Space Exploration Technologies Corp | +59.5K | $10.17M | 0.032% |
| CDNL Cardinal Infrastructure Group Inc. | +98.2K | $9.25M | 0.029% |
| CBRS Cerebras Systems Inc. | +29.0K | $6.41M | 0.02% |
| HTFL Heartflow, Inc. | +102.5K | $3.01M | <0.01% |
| NBIS Nebius Group N.V. | +9,719 | $2.68M | <0.01% |
| FDXF FedEx Freight Holding Company, Inc. | +17.1K | $2.57M | <0.01% |
| INFQ Infleqtion, Inc. | +175.0K | $2.33M | <0.01% |
| AEHR Aehr Test Systems | +17.8K | $1.71M | <0.01% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| XOM ExxonMobil Holdings Corp | -946.4K | $160.56M | 0.553% |
| HURN Huron Consulting Group Inc. | -51.4K | $6.56M | 0.023% |
| PBH Prestige Consumer Healthcare Inc. | -106.5K | $6.31M | 0.022% |
| EXPO Exponent Inc | -28.8K | $1.88M | <0.01% |
| RLI Rli Corp | -31.6K | $1.80M | <0.01% |
| OSIS Osi Systems Inc | -5,493 | $1.46M | <0.01% |
| ALHC Alignment Healthcare, Inc. | -42.5K | $747.97K | <0.01% |
| CCL Carnival Corp Ltd. | -21.7K | $562.06K | <0.01% |
| ALRM Alarm.com Holdings, Inc. | -12.1K | $521.13K | <0.01% |
| RYAAY Ryanair Holdings Plc | -8,686 | $502.07K | <0.01% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | AAPL Apple Inc. | Technology | 5.73M | $1.66B | 5.28% | -199.4K | -3.4% | Reduced | 0.04% |
| 2 | AMZN Amazon Com Inc | Consumer Discretionary | 5.88M | $1.40B | 4.46% | -182.8K | -3.0% | Reduced | 0.05% |
| 3 | MSFT Microsoft Corp | Technology | 3.44M | $1.28B | 4.09% | -55.5K | -1.6% | Reduced | 0.05% |
| 4 | NVDA Nvidia Corp | Technology | 5.37M | $1.08B | 3.42% | -53.5K | -1.0% | Reduced | 0.02% |
| 5 | GOOG Alphabet Inc. | Technology | 2.95M | $1.04B | 3.32% | -82.0K | -2.7% | Reduced | 0.05% |
| 6 | GOOGL Alphabet Inc. | Technology | 2.40M | $858.62M | 2.73% | -33.5K | -1.4% | Reduced | 0.04% |
| 7 | GEV GE Vernova Inc. | Industrials | 659.7K | $775.02M | 2.47% | -4,930 | -0.7% | Reduced | 0.25% |
| 8 | JPM Jpmorgan Chase & Co | Financial Services | 2.27M | $743.16M | 2.37% | -36.9K | -1.6% | Reduced | 0.08% |
| 9 | V Visa Inc. | Financial Services | 1.84M | $631.84M | 2.01% | -2,979 | -0.2% | Reduced | 0.11% |
| 10 | COST Costco Wholesale Corp | Consumer Staples | 524.7K | $490.83M | 1.56% | +3,415 | +0.7% | Added | 0.12% |
| 11 | IDXX Idexx Laboratories Inc | Healthcare | 918.6K | $483.56M | 1.54% | -27.8K | -2.9% | Reduced | 1.16% |
| 12 | APH Amphenol Corp | Industrials | 5.01M | $441.58M | 1.41% | -31.8K | -0.6% | Reduced | 0.2% |
| 13 | MA Mastercard Inc | Financial Services | 842.4K | $432.63M | 1.38% | -81.1K | -8.8% | Reduced | 0.1% |
| 14 | PANW Palo Alto Networks Inc | Technology | 1.23M | $418.27M | 1.33% | -78.3K | -6.0% | Reduced | 0.15% |
| 15 | LLY ELI LILLY & Co | Healthcare | 347.1K | $416.32M | 1.33% | +23.1K | +7.1% | Added | 0.04% |
Tip. Select a row to see that position’s full history at Blair William.
As of its Q2 2026 13F filing, Blair William & Co’s five largest positions were Apple Inc. (AAPL) at 5.3%, Amazon Com Inc (AMZN) at 4.5%, Microsoft Corp (MSFT) at 4.1%, Nvidia Corp (NVDA) at 3.4%, Alphabet Inc. (GOOG) at 3.3% of the reported portfolio.
Blair William & Co reported a 13F portfolio worth $31.40B across 1,246 positions for Q2 2026. That is up 8.2% from the previous quarter.
Its largest purchases by value were Honeywell Aerospace Inc. ($100.39M), Arista Networks, Inc. ($77.04M), Honeywell International Inc ($68.62M). It opened 138 new positions.
Its largest sales by value were ExxonMobil Holdings Corp ($160.56M), Danaher Corp ($62.04M), Apple Inc. ($57.70M). It exited 54 positions entirely.
From the Form 13F-HR reports Blair William & Co files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.