DOSSIER · 13F-HR · Q2 2026

GUYASUTA INVESTMENT ADVISORS INC

$1.9B in tracked AUM across 277 positions as of Q2 2026.

GI
CIK 0000928568 · last filed Jun 30, 2026
Total AUM
$1.9B
as of Q2 2026
Holdings
277
positions
Whale Score
62
62
tracked
Activity
no data
changes this Q
AI Analysis · Q2 2026
Comprehensive Analysis of SEC 13F Filing: Guyasuta Investment Advisors Inc
1. Portfolio Overview

Guyasuta Investment Advisors Inc. has reported a significant expansion in assets under management (AUM), with the total portfolio value surging by 158.3%, rising from $679.01 million to $1.75 billion quarter-over-quarter. This dramatic increase indicates substantial net capital inflows rather than mere market appreciation, as the broad market indices did not double during this perio...

2. Key Holdings

The portfolio is characterized by a high-conviction top tier, though no single position dominates to the point of extreme concentration.

  • Top Positions: The largest holding is Microsoft (MSFT) at $125.99 million (7.18%), followed closely by Alphabet (GOOG) at $118.48 million (6.76%) and Berkshire Hathaway (BRK/B) at $88.54 million (5.05%).
  • Concentration: The top ten positions account for approximately 40% of the total portfolio value. This suggests a "core and satellite" approach where the manager relies on a stable of high-quality blue-chip stocks to drive returns.
  • Weightings: Notably, the position sizes are methodical, with weights tapering smoothly from ~7% down to ~2% within the top 15. The inclusion of Mastercard (MA) and Republic Services (RSG) in the top five highlights a preference for dominant players in financial networks and essential services.
3. Sector Allocation

The sector breakdown reveals a "Barbell-style" exposure, balancing growth sectors with defensive cyclicals.

  • Technology Dominance: The Technology sector is the largest allocation at $320.05 million (18.3%). This is driven by heavyweights like Microsoft, TSMC, and Apple, as well as semiconductor exposure via ASML and Applied Materials.
  • Financials & Communication Services: Financial Services follows closely at $236.69 million (13.5%), bolstered by Berkshire Hathaway, Mastercard, and PNC. Communication Services constitutes $164.10 million (9.4%), primarily through Alphabet and Meta.
  • Defensive & Industrial Tilt: Unlike many growth-focused portfolios, this filing maintains significant weight in Utilities ($145.32M), Healthcare ($133.75M), and Consumer Cyclical ($161.96M). The utilities allocation is heavily concentrated in Vistra and Republic Services, suggesting a focus on energy infrastructure and waste management. The "Unknown" category ($191.93M) likely represents foreign-domiciled stocks (like Linde PLC) or ADRs where sector classification may vary.

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
GOOG
ALPHABET INC
$126M357K6.5%
02
MSFT
MICROSOFT CORP
$97M260K5.0%
03
BRK/B
BERKSHIRE HATHAWAY INC DEL
$90M179K4.6%
04
AMAT
APPLIED MATLS INC
$79M109K4.1%
05
MA
MASTERCARD INCORPORATED
$77M150K4.0%
06
RSG
REPUBLIC SVCS INC
$74M347K3.8%
07
PNC
PNC FINL SVCS GROUP INC
$62M251K3.2%
08
G87052109
TE CONNECTIVITY PLC
$59M293K3.0%
09
TMO
THERMO FISHER SCIENTIFIC INC
$58M116K3.0%
10
VST
VISTRA CORP
$58M365K3.0%

Filing history

2026Q2Jun 30
$1.9B 12.0%
277 positionsView →
2026Q1Mar 31
$1.7B 1.4%
269 positionsView →
2025Q4Dec 31
$1.8B 0.8%
265 positionsView →
2025Q3Sep 30
$1.7B 6.5%
262 positionsView →
2025Q2Jun 30
$1.6B 6.7%
258 positionsLocked
2025Q1Mar 31
$1.5B 3.8%
250 positionsLocked
2024Q4Dec 31
$1.6B 1.9%
263 positionsLocked
2024Q3Sep 30
$1.6B 19.2%
273 positionsLocked
2024Q2Jun 30
$1.4B 1.4%
244 positionsLocked
2024Q1Mar 31
$1.4B 0.3%
246 positionsLocked
2023Q4Dec 31
$1.4B 7.2%
246 positionsLocked
2023Q3Sep 30
$1.3B 4.5%
234 positionsLocked
Showing 12 of 100