Professional Advisory Services Inc reported 72 positions worth $744.03M for the quarter ended Sep 30, 2026, down 1.5% on the prior quarter. It opened 2 new positions, added to 21, trimmed 22 and exited 4. Its largest holding is Microsoft Corp at 5.5% 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 | Change % | Trade Value | Weight |
|---|---|---|---|---|
| NFLX Netflix Inc | +252.0K | – | $17.53M | 2.36% |
| SYK Stryker Corp | +15.6K | +18.7% | $4.29M | 3.66% |
| ADI Analog Devices Inc | +10.6K | +19.1% | $4.20M | 3.51% |
| CARR CARRIER GLOBAL Corp | +68.5K | +22.7% | $3.76M | 2.73% |
| AZN Astrazeneca Plc | +20.3K | +12.6% | $3.32M | 3.99% |
| TJX Tjx Companies Inc | +22.8K | +16.0% | $3.01M | 2.94% |
| BKNG Booking Holdings Inc. | +17.9K | +12.5% | $2.92M | 3.53% |
| AJG Arthur J. Gallagher & Co. | +9,832 | +9.1% | $2.24M | 3.63% |
| GOOG Alphabet Inc. | +4,696 | +4.1% | $1.60M | 5.42% |
| SPGI S&P Global Inc. | +1,487 | +2.7% | $586.59K | 3.03% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| TFC Truist Financial Corp | -383.0K | -100.0% | $19.08M | Exited |
| TMO Thermo Fisher Scientific Inc. | -14.2K | -21.9% | $9.59M | 4.59% |
| MSFT Microsoft Corp | -12.7K | -13.7% | $6.53M | 5.51% |
| AMD Advanced Micro Devices Inc | -8,151 | -16.0% | $4.99M | 3.53% |
| AAPL Apple Inc. | -11.6K | -11.7% | $3.86M | 3.92% |
| APH Amphenol Corp | -34.5K | -9.5% | $2.91M | 3.71% |
| J Jacobs Solutions Inc. | -19.4K | -9.1% | $2.63M | 3.53% |
| AMZN Amazon Com Inc | -9,034 | -6.2% | $2.25M | 4.55% |
| V Visa Inc. | -4,607 | -6.5% | $1.66M | 3.2% |
| PEP Pepsico Inc | -12.7K | -6.5% | $1.61M | 3.1% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | MSFT Microsoft Corp | Technology | 79.9K | $40.98M | 5.51% | -12.7K | -13.7% | Reduced | 0% |
| 2 | GOOG Alphabet Inc. | Technology | 118.4K | $40.33M | 5.42% | +4,696 | +4.1% | Added | 0% |
| 3 | TMO Thermo Fisher Scientific Inc. | Healthcare | 50.6K | $34.17M | 4.59% | -14.2K | -21.9% | Reduced | 0.01% |
| 4 | AMZN Amazon Com Inc | Consumer Discretionary | 135.9K | $33.87M | 4.55% | -9,034 | -6.2% | Reduced | 0% |
| 5 | BRK-B Berkshire Hathaway Inc | Financial Services | 63.2K | $31.49M | 4.23% | -1,164 | -1.8% | Reduced | 0% |
| 6 | AZN Astrazeneca Plc | Healthcare | 182.0K | $29.68M | 3.99% | +20.3K | +12.6% | Added | 0.01% |
| 7 | AAPL Apple Inc. | Technology | 87.6K | $29.18M | 3.92% | -11.6K | -11.7% | Reduced | 0% |
| 8 | APH Amphenol Corp | Industrials | 327.4K | $27.60M | 3.71% | -34.5K | -9.5% | Reduced | 0.01% |
| 9 | SYK Stryker Corp | Healthcare | 99.0K | $27.26M | 3.66% | +15.6K | +18.7% | Added | 0.03% |
| 10 | AJG Arthur J. Gallagher & Co. | Financial Services | 118.3K | $26.98M | 3.63% | +9,832 | +9.1% | Added | 0.05% |
| 11 | ELV Elevance Health, Inc. | Healthcare | 68.5K | $26.65M | 3.58% | -127 | -0.2% | Reduced | 0.03% |
| 12 | BKNG Booking Holdings Inc. | Technology | 161.3K | $26.27M | 3.53% | +17.9K | +12.5% | Added | 0.02% |
| 13 | J Jacobs Solutions Inc. | Industrials | 194.2K | $26.26M | 3.53% | -19.4K | -9.1% | Reduced | 0.16% |
| 14 | AMD Advanced Micro Devices Inc | Technology | 42.9K | $26.25M | 3.53% | -8,151 | -16.0% | Reduced | 0% |
| 15 | ADI Analog Devices Inc | Technology | 65.9K | $26.13M | 3.51% | +10.6K | +19.1% | Added | 0.01% |
Tip. Select a row to see that position’s full history at Professional Advisory Services.
As of its Q3 2026 13F filing, Professional Advisory Services Inc’s five largest positions were Microsoft Corp (MSFT) at 5.5%, Alphabet Inc. (GOOG) at 5.4%, Thermo Fisher Scientific Inc. (TMO) at 4.6%, Amazon Com Inc (AMZN) at 4.6%, Berkshire Hathaway Inc (BRK-B) at 4.2% of the reported portfolio.
Professional Advisory Services Inc reported a 13F portfolio worth $744.03M across 72 positions for Q3 2026. That is down 1.5% from the previous quarter.
Its largest purchases by value were Netflix Inc ($17.53M), Stryker Corp ($4.29M), Analog Devices Inc ($4.20M). It opened 2 new positions.
Its largest sales by value were Truist Financial Corp ($19.08M), Thermo Fisher Scientific Inc. ($9.59M), Microsoft Corp ($6.53M). It exited 4 positions entirely.
From the Form 13F-HR reports Professional Advisory Services Inc 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.