Muhlenkamp & Company portfolio

Investment firm, Wexford · 13F holdings for the quarter ended June 30, 2026

Filed with the SEC August 18, 2026 · Next filing due by November 14, 2026

Reported value
$345.3M
down from $379.8M in Q1 2026
Positions
28
29 last quarter
Top 10 holdings
58.0%
of the portfolio
This quarter
1 new · 2 sold
16 added to, 6 trimmed

What Muhlenkamp & Company did in Q2 2026

Muhlenkamp & Company opened a new position in iShares Silver Trust. It sold out of Mastec and Ea Series Trust. Rush Enterprises is now the largest holding, at 7.0% of the portfolio.

Biggest buys

  • iShares Silver Trust SLVNew
  • NMI Holdings NMIH+0.6%
  • Equinox Gold EQX+0.6%
  • Celanese CE+0.6%
  • Slb SLB+0.5%

Biggest sells

  • Mastec MTZSold out
  • Ea Series Trust FRDMSold out
  • Apple AAPL−0.7%
  • Rush Enterprises RUSHB−0.6%
  • Microsoft MSFT−0.5%

Top 15 holdings

Values as reported in the 13F, not today’s prices
#CompanyShare of portfolioReported valueChange vs Q1 2026Held since
1Rush EnterprisesRUSHA
7.0%
$24.3M+0.1%Q3 2024 or earlier
2NewmontNEM
6.3%
$21.6M−0.0%Q3 2024 or earlier
3Agnico Eagle MinesAEM
6.2%
$21.5M−0.0%Q4 2024
4EqtEQT
6.2%
$21.4M+0.2%Q3 2024 or earlier
5MckessonMCK
6.0%
$20.6M+0.1%Q3 2024 or earlier
6Berkshire HathawayBRK-B
5.6%
$19.3M+0.4%Q3 2024 or earlier
7Microchip TechnologyMCHP
5.4%
$18.5M+0.1%Q3 2024 or earlier
8AppleAAPL
5.2%
$18.0M−0.7%Q3 2024 or earlier
9United RentalsURI
5.1%
$17.8M+0.4%Q3 2024 or earlier
10Royal GoldRGLD
5.1%
$17.6M+0.2%Q3 2024 or earlier
11Westinghouse Air Brake TechnologiesWAB
4.9%
$17.0M+0.0%Q3 2024 or earlier
12BGC GroupBGC
4.5%
$15.5M+0.2%Q3 2024 or earlier
13NMI HoldingsNMIH
4.4%
$15.1M+0.6%Q3 2024 or earlier
14SlbSLB
4.4%
$15.1M+0.5%Q3 2024 or earlier
15MicrosoftMSFT
3.5%
$12.2M−0.5%Q3 2024 or earlier
13 more positions, plus every quarter’s holdings going back years.Request early access to see the full portfolio →

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About this data

What is a 13F?
A quarterly report to the SEC in which an investment manager with over $100 million in US-listed stocks lists what it holds.
How current is it?
Managers file up to 45 days after each quarter ends, so the holdings may have changed since.
Whose figures are these?
The values are as the manager reported them in the filing, not today's prices. The SEC lets a manager keep some positions confidential for a time, and those are not in the filing.
What does it leave out?
Short positions, cash, bonds and most holdings outside US markets. Options are left out here too.
Source: Muhlenkamp & Company’s Form 13F filed August 18, 2026 (SEC filing). Not investment advice.Markdown version · Updated August 18, 2026