GUYASUTA INVESTMENT ADVISORS INC — 13F holdings

GUYASUTA INVESTMENT ADVISORS INC reported 271 holdings worth $1.91B in its 13F filing for Q3 2026, filed October 15, 2026.

Largest positions

1. MSFT MICROSOFT CORP — $132M (6.9%)
2. GOOG ALPHABET INC — $121M (6.3%)
3. BRK.B BERKSHIRE HATHAWAY INC DEL — $89.2M (4.7%)
4. MA MASTERCARD INCORPORATED — $82.0M (4.3%)
5. TMO THERMO FISHER SCIENTIFIC INC — $76.6M (4.0%)
6. RSG REPUBLIC SVCS INC — $72.8M (3.8%)
7. TEL TE CONNECTIVITY PLC — $62.4M (3.3%)
8. PNC PNC FINL SVCS GROUP INC — $55.8M (2.9%)
9. TSM TAIWAN SEMICONDUCTOR MFG LTD — $53.5M (2.8%)
10. CVX CHEVRON CORP NEW — $53.0M (2.8%)