Ronald Muhlenkamp's BRK.B Position Overview
Ronald Muhlenkamp (via Muhlenkamp & Co INC) currently holds 38.4K shares of Berkshire Hathaway Inc. (BRK.B) worth $19.3 M, representing 5.24% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 50 quarters.
Based on 13F filings since 2013, Ronald Muhlenkamp has maintained a long-term strategic position in BRK.B, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2013, adding 4.1K shares. Largest reduction occurred in Q3 2019, reducing 76.2K shares.
Analysis based on 13F filings available since 2013 Q2
Ronald Muhlenkamp's Berkshire Hathaway (BRK.B) Holding Value Over Time
Track share changes against reported price movement
Quarterly Berkshire Hathaway (BRK.B) Trades by Ronald Muhlenkamp
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +113,201 | Add 0.00% | 113,200 | $111.92 |
| Q3 2013 | +385 | Add 0.34% | 113,585 | $113.51 |
| Q4 2013 | +4,050 | Add 3.57% | 117,635 | $118.56 |
| Q1 2014 | -285 | Reduce 0.24% | 117,350 | $124.97 |
| Q2 2014 | +475 | Add 0.40% | 117,825 | $126.56 |
| Q3 2014 | -5,000 | Reduce 4.24% | 112,825 | $138.14 |
| Q4 2014 | -150 | Reduce 0.13% | 112,675 | $150.15 |
| Q1 2015 | -145 | Reduce 0.13% | 112,530 | $144.32 |
| Q2 2015 | -112,530 | Sold Out | 112,530 | $0.00 |
| Q3 2019 | +36,322 | New Buy | 36,322 | $208.03 |
| Q4 2019 | -4 | Reduce 0.01% | 36,318 | $226.50 |
| Q2 2020 | +36,405 | Add 0.00% | 36,404 | $178.50 |
| Q3 2020 | +285 | Add 0.78% | 36,689 | $212.95 |
| Q4 2020 | +230 | Add 0.63% | 36,919 | $231.86 |
| Q1 2021 | +56 | Add 0.15% | 36,975 | $289.09 |
| Q2 2021 | +58 | Add 0.16% | 37,033 | $277.91 |
| Q3 2021 | -58 | Reduce 0.16% | 36,975 | $272.94 |
| Q4 2021 | -4 | Reduce 0.01% | 36,971 | $298.99 |
| Q1 2022 | +145 | Add 0.39% | 37,116 | $352.92 |
| Q2 2022 | +78 | Add 0.21% | 37,194 | $273.03 |
| Q3 2022 | +200 | Add 0.54% | 37,394 | $267.02 |
| Q4 2022 | +36 | Add 0.10% | 37,430 | $308.90 |
| Q2 2023 | +37,647 | Add 0.00% | 37,646 | $341.00 |
| Q3 2023 | -86 | Reduce 0.23% | 37,560 | $350.30 |
| Q4 2023 | +289 | Add 0.77% | 37,849 | $356.66 |
| Q1 2024 | +334 | Add 0.88% | 38,183 | $420.52 |
| Q2 2024 | -41 | Reduce 0.11% | 38,142 | $406.80 |
| Q3 2024 | -18 | Reduce 0.05% | 38,124 | $460.26 |
| Q4 2024 | +48 | Add 0.13% | 38,172 | $453.28 |
| Q1 2025 | -34 | Reduce 0.09% | 38,138 | $532.59 |
| Q2 2025 | +213 | Add 0.56% | 38,351 | $485.78 |
| Q3 2025 | +29 | Add 0.08% | 38,380 | $502.75 |
Ronald Muhlenkamp's Berkshire Hathaway Investment FAQs
Ronald Muhlenkamp first purchased Berkshire Hathaway Inc. (BRK.B) in Q2 2013, acquiring 113,200 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Ronald Muhlenkamp has held Berkshire Hathaway Inc. (BRK.B) for 50 quarters since Q2 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Ronald Muhlenkamp's largest addition to Berkshire Hathaway Inc. (BRK.B) was in Q2 2013, adding 113,200 shares worth $12.67 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Ronald Muhlenkamp's firm, Muhlenkamp & Co INC, owns 38,380 shares of Berkshire Hathaway Inc. (BRK.B), valued at approximately $19.3 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, Berkshire Hathaway Inc. (BRK.B) represents approximately 5.24% of Ronald Muhlenkamp's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Ronald Muhlenkamp's peak holding in Berkshire Hathaway Inc. (BRK.B) was 117,825 shares, as reported at the end of Q2 2014. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.