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Ronald Muhlenkamp — Founder & President — portfolio photo

Ronald Muhlenkamp
Portfolio: Top Holdings & Stock Picks

Muhlenkamp & Co INC

Ronald Muhlenkamp (Muhlenkamp & Co INC) disclosed 29 total holdings in its latest 13F filing dated 03/31/2026, with a portfolio value of $379.79 M and a turnover rate of 3.6%.

Portfolio Value
$379.79 M
Total Holdings
29
Latest Filing
Q1 2026
May 06, 2026
Turnover Rate
3.58%

Ronald Muhlenkamp Top Holdings of Q1 2026

Ronald Muhlenkamp Top Holdings of Q1 2026
Ticker Name Shares Value % of Portfolio Time Held % Change
AEM
138,588 $28.13 M 7.41% 1.2 Years -8.38%
EQT
401,242 $25.54 M 6.72% 4.2 Years -11.06%
NEM
231,182 $25.03 M 6.59% 2.2 Years -18.74%
MCK
27,169 $23.51 M 6.19% 9.7 Years -0.09%
87,892 $22.37 M 5.89% 5.2 Years -0.04%
331,905 $21.94 M 5.78% >10 Years -11.61%
38,351 $18.38 M 4.84% 6.5 Years -0.16%
SLB
322,171 $16.56 M 4.36% 5.2 Years +0.04%
62,559 $15.88 M 4.18% >10 Years -0.45%
WAB
63,155 $15.78 M 4.16% 7 Years -0.23%

Recent Moves

Significant New Position
+236,825 Shares | +$12.94 M Value
Continues to build a major stake in the sector
Q1 2026
Added to Core Holding
+1,338 Shares | +$107,789.28 Value
Modest increase in Materials
Q1 2026
Reduced Exposure to Position
-62,928 Shares | -$20.25 M Value
Significant reduction in holdings of Industrials
Q1 2026
Complete Exit
-7,924 Shares | -$1.63 M Value
Cleared GTLS, sector remains in portfolio
Q1 2026

Ronald Muhlenkamp's Historical Top Holdings Overview

Portfolio Date:

Ronald Muhlenkamp Top Stock Picks

Ticker Name Date Activity Shares Shares Change Value Change
MTZ
03/31/2026 Reduce -59.5% 42,832 -62,928 $20.25 M
03/31/2026 New Buy 236,825 236,825 $12.94 M
NEM
03/31/2026 Reduce -18.7% 231,182 -53,299 $5.77 M
03/31/2026 Reduce -21.7% 366,219 -101,570 $3.81 M
EQT
03/31/2026 Reduce -11.1% 401,242 -49,885 $3.17 M
BGC
03/31/2026 Reduce -17.9% 1.44 M -315,339 $3.08 M
03/31/2026 Reduce -11.6% 331,905 -43,614 $2.88 M
AEM
03/31/2026 Reduce -8.4% 138,588 -12,681 $2.57 M
03/31/2026 Sold Out 0 -7,924 $1.63 M
03/31/2026 Reduce -14.6% 150,615 -25,686 $1.35 M

Ronald Muhlenkamp's Portfolio Sector Breakdown

Portfolio Date:

About Ronald Muhlenkamp

Ronald Muhlenkamp is the founder and portfolio manager of Muhlenkamp & Co., Inc., an investment management firm he established in 1977. He is known for his independent thinking and his decades-long career managing the Muhlenkamp Fund. He has authored books and articles sharing his straightforward, business-owner's approach to investing.

Frequently Asked Questions

As of 03/31/2026, Ronald Muhlenkamp holds 29 stocks. Top positions include AEM, EQT, NEM, MCK, RGLD. For full portfolio details, please visit Ronald Muhlenkamp’s portfolio.

In Q1 2026, Ronald Muhlenkamp’s largest purchase by dollar amount was FRDM. For complete transaction details, please visit Ronald Muhlenkamp’s portfolio.

According to the 13F filing for Q1 2026, Ronald Muhlenkamp increased their stake in LYB.

Ronald Muhlenkamp's firm may occasionally request confidential treatment under SEC rule 13F-HR, which allows temporary non-disclosure of certain positions.