Greenfield Seitz Capital Management, LLC
SEC Form 13F institutional filer · CIK 0002097528
13F-HR · 71 reported holdings · 2026-03-31
Reported long-US-equity value
$0.18B
Top-10 concentration
45.7%
Greenfield Seitz Capital Management, LLC — $177M AUM allocation strategy
Greenfield Seitz Capital Management, LLC files SEC Form 13F and reports $177M of long US equity value across 71 reported holdings for 2026-03-31.
Its largest sector bet is Industrials 22.3%, followed by Energy 17.1% and Information Technology 14.9%.
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.
Greenfield Seitz Capital Management, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$177M
total across 71 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
46% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$PAYX +22.6K sh · +$1.18M+$UBER +15.3K sh · +$428K+$ADBE +2.75K sh · −$745K
Biggest trims (shares)
−$APA −60.1K sh · +$929K−$KMI −10.7K sh · +$663K−$DXCM −6.66K sh · −$504K
Exited to nil (held last quarter, gone now)
$BAX ($248K last qtr)$PYPL ($215K last qtr)$DAL ($208K last qtr)$TMO ($203K 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)
- Semiconductors12.7%—
- Health Care Equipment9.8%—
- Oil & Gas Exploration & Production7.2%—
- Electrical Components & Equipment5.7%—
- Oil & Gas Storage & Transportation5.6%—
- Integrated Oil & Gas4.2%—
- Investment Banking & Brokerage4.1%—
- Human Resource & Employment Services3.5%—
- Other holdings47.1%—
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 |
|---|---|---|---|---|---|
| $NVDA | NVIDIA Corporation | 75.6K | $13.2M | -1.95K | 7.4% |
| $RMD | ResMed Inc | 49.1K | $11M | +235 | 6.2% |
| $ETN | Eaton Corporation PLC | 28.2K | $10.1M | -384 | 5.7% |
| $XOM | ExxonMobil Holdings Corporation | 44.1K | $7.48M | -4.32K | 4.2% |
| $RJF | Raymond James Financial Inc | 49.9K | $7.23M | +178 | 4.1% |
| $EOG | EOG Resources Inc | 49K | $7.08M | -1.14K | 4.0% |
| $ISRG | Intuitive Surgical Inc | 13.8K | $6.38M | +20 | 3.6% |
| $PAYX | Paychex Inc | 67.6K | $6.23M | +22.6K | 3.5% |
| $EXPD | Expeditors International of Washington Inc | 43.4K | $6.22M | -1.47K | 3.5% |
| $MCHP | Microchip Technology Incorporated | 94.4K | $6.1M | -777 | 3.4% |
…and 61 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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