MUHLENKAMP & CO INC
SEC Form 13F institutional filer · CIK 0001133219
13F-HR · 14 reported holdings · 2026-03-31
Reported long-US-equity value
$0.20B
Top-10 concentration
92.4%
MUHLENKAMP & CO INC — $196M AUM allocation strategy
MUHLENKAMP & CO INC files SEC Form 13F and reports $196M of long US equity value across 14 reported holdings for 2026-03-31.
Its largest sector bet is Energy 21.6%, followed by Information Technology 21.0% and Materials 20.5%.
The top 10 holdings account for 92% of reported value — a conviction-weighted book concentrated in its best ideas. 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.
MUHLENKAMP & CO INC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$196M
total across 14 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
92% of value
higher = narrower conviction; lower = spread / hedging
Biggest trims (shares)
−$NEM −53.3K sh · −$3.38M−$EQT −49.9K sh · +$1.35M−$AAPL −282 sh · −$1.21M
Exited to nil (held last quarter, gone now)
None this quarter
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)
- Oil & Gas Exploration & Production13.0%—
- Gold12.8%—
- Health Care Distributors12.0%—
- Multi-Sector Holdings9.4%—
- Oil & Gas Equipment & Services8.5%—
- Technology Hardware, Storage & Peripherals8.1%—
- Construction Machinery & Heavy Transportation Equipment8.1%—
- Specialty Chemicals7.7%—
- Other holdings20.4%—
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 |
|---|---|---|---|---|---|
| $EQT | EQT Corporation | 401K | $25.5M | -49.9K | 13.0% |
| $NEM | Newmont Corporation | 231K | $25M | -53.3K | 12.8% |
| $MCK | McKesson Corporation | 27.2K | $23.5M | -24 | 12.0% |
| $BRK.B | Berkshire Hathaway Inc.-Class B | 38.4K | $18.4M | -60 | 9.4% |
| $SLB | SLB Limited | 322K | $16.6M | +140 | 8.5% |
| $AAPL | Apple Inc | 62.6K | $15.9M | -282 | 8.1% |
| $WAB | Westinghouse Air Brake Technologies Corporation | 63.2K | $15.8M | -146 | 8.1% |
| $LYB | LyondellBasell Industries NV Ordinary Shares Class A | 187K | $15.1M | +1.34K | 7.7% |
| $MCHP | Microchip Technology Incorporated | 203K | $13.1M | +0 | 6.7% |
| $MSFT | Microsoft Corporation | 32.9K | $12.2M | -68 | 6.2% |
…and 4 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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