Muhlenkamp
Muhlenkamp & Company · SEC CIK 1133219
Value driven by return on shareholder equity.
This filing is 158 days old. Muhlenkamp & Company keeps roughly 93% of its positions in a typical quarter, so about 88% of this book is likely still intact today.
How half-life is computedSnapshot half-life is the number of days after the period end at which half of this specific fund's reported book is expected to have changed, measured from its own past filings. It is a decay estimate, not knowledge of current positions.
Largest holdings, as filed
Top 10 of 28 positions. Weights are against the whole filed book. 13F filings cover US-listed holdings only.
| Company | Ticker | Value | % of book | Freshness |
|---|---|---|---|---|
| RUSH ENTERPRISES INC | RUSHA | $24.26M | 7.0% | |
| NEWMONT CORP | NEM | $21.58M | 6.3% | |
| AGNICO EAGLE MINES LTD | AEM | $21.49M | 6.2% | |
| EQT CORP | EQT | $21.39M | 6.2% | |
| MCKESSON CORP | MCK | $20.55M | 6.0% | |
| BERKSHIRE HATHAWAY INC DEL | BRK/B | $19.26M | 5.6% | |
| MICROCHIP TECHNOLOGY INC. | MCHP | $18.53M | 5.4% | |
| APPLE INC | AAPL | $17.98M | 5.2% | |
| UNITED RENTALS INC | URI | $17.76M | 5.1% | |
| ROYAL GOLD INC | RGLD | $17.58M | 5.1% |
Freshness: how likely each position is still held today, from this fund's own turnover history, each position's tenure and the filing's age. Hover a bar for the numbers. Method.
What changed last quarter
Between Q4 2025 and Q2 2026, the largest new position was FRDM, now $12.94M; the largest trim was AEM (shares down 8%); GTLS no longer appears among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Biggest buys, Q2 2026
- FRDM new$12.94M
- XOM new$278.2K
Exited since Q4 2025
- GTLSwas $1.63M
Exit scan covers the previous quarter's 40 largest positions, a stated bound, because reading a mega fund's entire book per page render is not honest engineering.
Common questions
What are Muhlenkamp's biggest holdings?
As of the Q2 2026 13F, the largest reported positions at Muhlenkamp & Company are RUSHA (7.0% of the book), NEM (6.3% of the book), AEM (6.2% of the book).
How big is Muhlenkamp & Company's portfolio?
The latest 13F reports $345.25M across 28 US-listed positions. 13F filings cover US-listed holdings only, so non-US positions and shorts are not included.
Does Muhlenkamp still hold these positions?
Unknown for certain: a 13F may be filed up to 45 days after quarter end. Based on Muhlenkamp & Company's own filing history, the fund keeps roughly 93% of positions in a typical quarter, so at 158 days since the period end roughly 88% of this book is likely intact. The snapshot half-life for this fund is about 839 days.
What did Muhlenkamp buy and sell last quarter?
Between Q4 2025 and Q2 2026, the largest new position was FRDM, now $12.94M; the largest trim was AEM (shares down 8%); GTLS no longer appears among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Funds with overlapping books
Inside the app: the full book for Muhlenkamp & Company, quarter on quarter buys and sells, consensus across 140+ funds and copy-to-watchlist.
Source: SEC EDGAR 13F filings. Values are as filed and cover US-listed positions only. A 13F may be filed up to 45 days after the quarter ends, so positions can change before the filing is even public; the freshness figures above quantify that lag instead of hiding it. Educational information, not financial advice.