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.
Ronald Muhlenkamp Top Holdings of 2025-06-30
| Ticker | Name | Shares | Value | % of Portfolio | Time Held | % Change |
|---|---|---|---|---|---|---|
| 451,015 | $26.3 M | 8.21% | 2 Years | +0.21% | ||
| 27,084 | $19.85 M | 6.19% | 2 Years | -29.81% | ||
| 465,854 | $19.65 M | 6.13% | 2 Years | +0.62% | ||
| 373,783 | $19.25 M | 6.01% | 2 Years | +0.62% | ||
| 38,351 | $18.63 M | 5.81% | 2 Years | +0.56% | ||
| 106,084 | $18.08 M | 5.64% | 2 Years | +0.59% | ||
| 151,287 | $17.99 M | 5.61% | 0.5 Years | +0.02% | ||
| 1.75 M | $17.9 M | 5.59% | 1.7 Years | +0.90% | ||
| 283,860 | $16.54 M | 5.16% | 1.5 Years | +0.05% | ||
| 32,311 | $16.07 M | 5.01% | 2 Years | +0.22% |
Recent Moves
Significant New Position
+151,208 Shares | +$8.37 M Value
Continues to build a major stake in the Materials sector
2025 Q2
Added to Core Holding
+90,431 Shares | +$6.36 M Value
Modest increase in Technology
2025 Q2
Reduced Exposure to Position
-11,505 Shares | -$8.43 M Value
Reduced exposure to Healthcare
2025 Q2
Complete Exit
-25,045 Shares | -$13.12 M Value
Cleared UNH, sector remains in portfolio
2025 Q2
Ronald Muhlenkamp's Historical Top Holdings Breakdown
Portfolio Date:
Ronald Muhlenkamp Top Stock Picks
| Ticker | Name | Date | Activity | Shares | Shares Change | Value Change |
|---|---|---|---|---|---|---|
| 06/30/2025 | Sold Out | 25,045 | -25,045 | $13.12 M | ||
| 06/30/2025 | Reduce -29.8% | 27,084 | -11,505 | $8.43 M | ||
| 06/30/2025 | New Buy | 151,208 | 151,208 | $8.37 M | ||
| 06/30/2025 | Add 81.4% | 201,491 | 90,431 | $6.36 M | ||
| 06/30/2025 | Add 0.9% | 1.75 M | 15,539 | $158,963.94 | ||
| 06/30/2025 | Add 0.6% | 465,854 | 2,883 | $121,633.84 | ||
| 06/30/2025 | Add 1.0% | 15,527 | 159 | $119,787.29 | ||
| 06/30/2025 | Add 0.9% | 62,944 | 570 | $119,329.56 | ||
| 06/30/2025 | Add 0.6% | 373,783 | 2,302 | $118,575.97 | ||
| 06/30/2025 | Add 1.2% | 157,082 | 1,876 | $115,223.9 |