Muhlenkamp & Co
MUHLENKAMP & CO INC · CIK 0001133219 · WEXFORD, PA · Quarter end: 2026-06-30 · Filed on: 2026-08-18 · Open the SEC source ↗Value Investor
Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$345.3M
2026 Q2
Positions
28
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
58.0%
Est. Net Flow (Q)
—
2026 Q2
Top Holdings
RUSHA
RUSH ENTERPRISES INC
7.0%
NEM
NEWMONT CORP
6.3%
AEM
AGNICO EAGLE MINES LTD
6.2%
EQT
EQT CORP
6.2%
MCK
MCKESSON CORP
6.0%
BRK-B
BERKSHIRE HATHAWAY INC DEL
5.6%
MCHP
MICROCHIP TECHNOLOGY INC.
5.4%
AAPL
APPLE INC
5.2%
New / Increased
No prior quarter data
Reduced / Exited
No prior quarter data
Related managers
Five closest superinvestors by Jaccard overlap of tickers held in the latest quarter (computed nightly).
| Manager | Overlap | Shared holdings |
|---|---|---|
| Semper Augustus Investments | 11.4% | MSFT, MCHP, NEM, AAPL, BRK-B, EXMOC, TRV, GEV |
| Fairholme Capital (Bruce Berkowitz) | 7.9% | EPD, AAPL, BRK-B |
| H&H International Investment (Duan Yongping) | 7.0% | MSFT, AAPL, BRK-B |
| Himalaya Capital (Li Lu) | 5.9% | AAPL, BRK-B |
| Findlay Park Partners | 5.5% | MSFT, RGLD, URI, BRK-B |
Read the 2026-Q2 quarterly report · 13F Filing Calendar
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.