GUYASUTA INVESTMENT ADVISORS INC
SEC Form 13F institutional filer · CIK 0000928568
13F-HR · 186 reported holdings · 2026-03-31
SEC-registered institutional investment manager.
Reported long-US-equity value
$1.54B
Top-10 concentration
46.3%
GUYASUTA INVESTMENT ADVISORS INC — $1.54B AUM allocation strategy
GUYASUTA INVESTMENT ADVISORS INC files SEC Form 13F and reports $1.54B of long US equity value across 186 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 15.6%, followed by Financials 13.7% and Industrials 7.4%.
The top 10 holdings account for 46% of reported value — a broadly spread portfolio. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
GUYASUTA INVESTMENT ADVISORS INC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$1.54B
total across 186 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
46% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$PANW +71.8K sh · +$11.4M+$AMZN +20.5K sh · +$1.01M+$IVV +9.14K sh · +$207K
Biggest trims (shares)
−$VST −83.1K sh · −$17.4M−$TXN −29K sh · −$2.62M−$GOOGL −9.32K sh · −$12.8M
Exited to nil (held last quarter, gone now)
$PCG ($522K last qtr)$NOW ($253K last qtr)$IP ($207K last qtr)
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Interactive Media & Services6.8%—
- Systems Software6.2%—
- Multi-Sector Holdings5.5%—
- Environmental & Facilities Services4.9%—
- Transaction & Payment Processing Services4.8%—
- Electronic Manufacturing Services3.9%—
- Life Sciences Tools & Services3.7%—
- Electric Utilities3.6%—
- Other holdings60.6%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $GOOGL | Alphabet Inc | 368K | $106M | -9.32K | 6.9% |
| $MSFT | Microsoft Corporation | 259K | $96M | -1.18K | 6.2% |
| $BRK.B | Berkshire Hathaway Inc.-Class B | 178K | $85.1M | +1.44K | 5.5% |
| $RSG | Republic Services Inc | 342K | $74.9M | -2.62K | 4.9% |
| $MA | Mastercard Incorporated | 149K | $74.2M | -159 | 4.8% |
| $TEL | TE Connectivity plc | 290K | $60.5M | +83 | 3.9% |
| $TMO | Thermo Fisher Scientific Inc | 115K | $56.4M | +770 | 3.7% |
| $VST | Vistra Corp | 365K | $54.9M | -83.1K | 3.6% |
| $CVX | Chevron Corporation | 262K | $54.3M | -2.06K | 3.5% |
| $PNC | PNC Financial Services Group Inc | 253K | $52.6M | -44 | 3.4% |
…and 176 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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