PROFESSIONAL ADVISORY SERVICES INC — 13F holdings

PROFESSIONAL ADVISORY SERVICES INC reported 90 holdings worth $837M in its 13F filing for Q3 2026, filed October 8, 2026.

Largest positions

  1. MSFT MICROSOFT CORP — $41.0M (4.9%)
  2. GOOG ALPHABET INC — $40.3M (4.8%)
  3. TMO THERMO FISHER SCIENTIFIC INC — $34.2M (4.1%)
  4. AMZN AMAZON COM INC — $33.9M (4.0%)
  5. BRK.B BERKSHIRE HATHAWAY INC DEL — $31.5M (3.8%)
  6. AZN ASTRAZENECA PLC — $29.7M (3.5%)
  7. AAPL APPLE INC — $29.2M (3.5%)
  8. IJH ISHARES TR — $28.0M (3.3%)
  9. APH AMPHENOL CORP NEW — $27.6M (3.3%)
  10. SYK STRYKER CORPORATION — $27.3M (3.3%)