Muhlenkamp & Co Inc
- Regulatory AUM
- $436M
- Discretionary
- $436M
- Clients
- 69
- Avg AUM / client
- $6.3M
- Accounts
- 69
- Employees
- 6
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Dec 19, 2025
Investments (13F portfolio — 29 positions, $379,789,142)
13F period Mar 31, 2026| # | Issuer | Class | Value | Shares | % of 13F | % of AUM |
|---|---|---|---|---|---|---|
| 1 | Agnico Eagle Mines Ltd | COM | $28,130,592 | 138,588 | 7.41% | 6.45% |
| 2 | Eqt Corp | COM | $25,535,041 | 401,242 | 6.72% | 5.86% |
| 3 | Newmont Corp | COM | $25,025,452 | 231,182 | 6.59% | 5.74% |
| 4 | Mckesson Corp | COM | $23,510,966 | 27,169 | 6.19% | 5.39% |
| 5 | Royal Gold Inc | COM | $22,367,635 | 87,892 | 5.89% | 5.13% |
| 6 | Rush Enterprises Inc | CL A | $21,942,240 | 331,905 | 5.78% | 5.03% |
| 7 | Berkshire Hathaway Inc Del | CL B NEW | $18,377,799 | 38,351 | 4.84% | 4.22% |
| 8 | Slb Limited | COM STK | $16,556,368 | 322,171 | 4.36% | 3.8% |
| 9 | Apple Inc | COM | $15,876,849 | 62,559 | 4.18% | 3.64% |
| 10 | Wabtec | COM | $15,783,066 | 63,155 | 4.16% | 3.62% |
| 11 | Lyondellbasell Industries Nv | SHS - A - | $15,077,529 | 187,159 | 3.97% | 3.46% |
| 12 | Bgc Group Inc | CL A | $14,121,743 | 1,443,941 | 3.72% | 3.24% |
| 13 | Celanese Corp Del | COM | $13,864,316 | 210,800 | 3.65% | 3.18% |
| 14 | Mastec Inc | COM | $13,780,768 | 42,832 | 3.63% | 3.16% |
| 15 | Nmi Hldgs Inc | COM | $13,736,875 | 366,219 | 3.62% | 3.15% |
| 16 | Microchip Technology Inc. | COM | $13,114,861 | 202,985 | 3.45% | 3.01% |
| 17 | Ea Series Trust | FREEDOM 100 EM | $12,942,486 | 236,825 | 3.41% | 2.97% |
| 18 | Microsoft Corp | COM | $12,192,295 | 32,937 | 3.21% | 2.8% |
| 19 | United Rentals Inc | COM | $11,367,722 | 15,603 | 2.99% | 2.61% |
| 20 | Spdr Gold Tr | GOLD SHS | $9,502,094 | 22,083 | 2.5% | 2.18% |
| 21 | Taylor Morrison Home Corp | COM | $9,237,213 | 158,606 | 2.43% | 2.12% |
| 22 | Alps Etf Tr | ALERIAN MLP | $7,928,374 | 150,615 | 2.09% | 1.82% |
| 23 | Equinox Gold Corp | COM | $7,507,907 | 519,219 | 1.98% | 1.72% |
| 24 | Icon Plc | SHS | $7,304,113 | 66,005 | 1.92% | 1.68% |
| 25 | Travelers Companies Inc | COM | $1,932,963 | 6,627 | 0.51% | 0.44% |
Top 25 of 29 positions from the manager's latest Form 13F · source filing (EDGAR) ↗. 13F covers long US-listed positions only. "% of AUM" is share of the firm's total regulatory AUM (Form ADV Item 5.F).
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 31 | $17.8M | 4.08% |
| High net worth individuals | 29 | $154M | 35.4% |
| Banking or thrift institutions | 0 | $0 | — |
| Investment companies | 1 | $254M | 58.2% |
| Pension and profit sharing plans | 1 | $346K | 0.08% |
| Charitable organizations | 4 | $6.2M | 1.41% |
| State or municipal government entities | 0 | $0 | — |
| Other investment advisers | 0 | $0 | — |
| Insurance companies | 0 | $0 | — |
| Sovereign wealth funds and foreign official institutions | 0 | $0 | — |
| Corporations and other businesses | 1 | $2.8M | 0.64% |
| Other | 2 | $935K | 0.21% |
People (4)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Ronald Henry Muhlenkamp | Owner/Director | Aug 1981 (45y) | 75% or more | |
| Muhlenkamp, Constance, Sue | Director | Jul 1982 (44y) | Less than 5% | |
| Anthony William Muhlenkamp | President/Chief Compliance Officer/Director | Sep 2004 (22y) | Less than 5% | |
| Jeffrey Paul Muhlenkamp | Portfolio Manager, Director | CFA | May 2017 (9y) | Less than 5% |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 12/19/2025 | 933 KB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
- • Hourly charges
Services
- • Financial planning services
- • Portfolio management for individuals/small businesses
- • Portfolio management for investment companies
- • Portfolio management for businesses/institutional clients
- • Publication of periodicals or newsletters
- • Educational seminars/workshops
Custody
Reported custodians
- Charles Schwab & Co. $177M (41% of AUM) Dec 2025
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports it does not have custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Dec 19, 2025.
View current Form ADV (SEC/IAPD) ↗