Muhlenkamp & Co

MUHLENKAMP & CO INC · CIK 0001133219 · WEXFORD, PA · Quarter end: 2026-06-30 · Filed on: 2026-08-18 · Open the SEC sourceValue Investor

Muhlenkamp & Co (MUHLENKAMP & CO INC) reported 28 positions worth $345.3M as of June 30, 2026 (13F filed August 18, 2026). Largest holding: RUSHA (7.0%). Biggest move: exit MTZ ($13.8M).

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
10 / 28 positions shown
#SymbolCompanyTypeValue% Port.Time HeldShares1YYTD
1RUSHARUSH ENTERPRISES INCSH$24.3M7.03%>10 Years332,332
2NEMNEWMONT CORPSH$21.6M6.25%2.8 Years231,090
3AEMAGNICO EAGLE MINES LTDSH$21.5M6.22%1.8 Years138,521
4EQTEQT CORPSH$21.4M6.19%4.5 Years402,243
5MCKMCKESSON CORPSH$20.6M5.95%9.5 Years27,202
6BRK-BBERKSHIRE HATHAWAY INC DELSH$19.3M5.58%6.5 Years38,495
7MCHPMICROCHIP TECHNOLOGY INC.SH$18.5M5.37%8.8 Years203,139
8AAPLAPPLE INCSH$18.0M5.21%>10 Years62,125
9URIUNITED RENTALS INCSH$17.8M5.14%3 Years15,673
10RGLDROYAL GOLD INCSH$17.6M5.09%5.5 Years88,088

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Read the 2026-Q2 quarterly report · 13F Filing Calendar

Frequently Asked Questions

What stocks does Muhlenkamp & Co hold as of Q2 2026?

Muhlenkamp & Co reported 28 positions worth $345.3M in its Q2 2026 13F filing. Largest positions: RUSHA (7.0%), NEM (6.3%), AEM (6.2%), EQT (6.2%) and MCK (6.0%).

What did Muhlenkamp & Co buy in Q2 2026?

No previous quarter is available yet; the comparison appears with the next filing.

What did Muhlenkamp & Co sell in Q2 2026?

No previous quarter is available yet.

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.