Who Owns MPLX LP COM UNIT REP LTD (MPLX)? -- Institutional Holders (2026-06-30)
23 institutions reported holding $31.6M of MPLX LP COM UNIT REP LTD (MPLX) in SEC 13F filings for 2026-06-30. Largest institutional holders: WALNUT PRIVATE EQUITY PARTNERS, LLC ($15.7M), CoreCap Advisors, LLC ($6.0M), HOWARD FINANCIAL SERVICES, LTD. ($2.7M), Trilogy Capital Inc. ($1.2M), Attessa Capital LLC ($1.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | WALNUT PRIVATE EQUITY PARTNERS, LLC | $15.7M | 268,000 | Added |
| 2 | CoreCap Advisors, LLC | $6.0M | 106,118 | Added |
| 3 | HOWARD FINANCIAL SERVICES, LTD. | $2.7M | 48,413 | Added |
| 4 | Trilogy Capital Inc. | $1.2M | 20,683 | Trimmed |
| 5 | Attessa Capital LLC | $1.0M | 18,500 | New |
| 6 | Dynamic Advisor Solutions LLC | $690,085 | 12,251 | Added |
| 7 | Addis & Hill, Inc | $684,410 | 12,150 | Hold |
| 8 | Silverberg Bernstein Capital Management LLC | $543,247 | 9,644 | Hold |
| 9 | Valeo Financial Advisors, LLC | $450,120 | 7,991 | Trimmed |
| 10 | Hilltop National Bank | $416,842 | 7,400 | Added |
| 11 | Madison Park Capital Advisors, LLC | $357,972 | 6,744 | Added |
| 12 | ATWOOD & PALMER INC | $329,178 | 5,844 | Hold |
| 13 | Fermata Advisors, LLC | $292,460 | 5,192 | Added |
| 14 | Somerset Trust Co | $288,410 | 5,120 | Hold |
| 15 | ROCKLAND TRUST CO | $281,650 | 5,000 | Hold |
| 16 | Teamwork Financial Advisors, LLC | $220,251 | 3,910 | Hold |
| 17 | CHAPIN DAVIS, INC. | $212,138 | 3,766 | New |
| 18 | Arlington Trust Co LLC | $185,889 | 3,300 | Hold |
| 19 | HARBOR INVESTMENT ADVISORY, LLC | $56,330 | 1,000 | Hold |
| 20 | Kozak & Associates, Inc. | $5,447 | 97 | Added |
| 21 | Cedar Mountain Advisors, LLC | $620 | 11 | Hold |
| 22 | SANDERS MORRIS HARRIS LLC | $0 | 0 | Exited |
| 23 | Grove Bank & Trust | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30