Mplx LP: which funds bought and sold
Institutions that bought and sold Mplx shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 293 institutions that filed 13F reports for both quarters added to or opened positions in Mplx, and 202 cut or closed them. Together they sold a net 5.9M shares, −3.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 65K shares (+0.6%); index fund managers were net buyers of 1,732 shares (+0.8%). 50 opened a new position and 56 sold out entirely.
Bought, Q2 2026 293 institutions, 50 of them new holders Sold, Q2 2026 202 institutions, 56 of them sold out
Net change, all compared −5.9M shares (−3.0%)
Net change, active managers +65K shares (+0.6%), 4 bought, 5 sold
Buyers versus sellers
293 bought 182 202 sold
Active managers and hedge funds 4 bought · 5 sold · +65K
Index fund managers 2 bought · 2 sold · +1,732
Other institutions 287 bought · 195 sold · −6.0M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Alps Advisors Inc | +1.5M +5.7% | 28.6M | $1.6B |
| HRT Financial LP | +748K +1025.7% | 821K | $46.2M |
| Mirae Asset Global Etfs Holdings Ltd. | +692K +9.5% | 8.0M | $451M |
| Arax Advisory Partners | +594K +34353.3% | 596K | $33.6M |
| Mizuho Markets Americas LLC | +575K New position | 575K | $32.4M |
| FMR LLC Active manager | +560K +16.7% | 3.9M | $221M |
| Recurrent Investment Advisors LLC | +545K New position | 545K | $30.7M |
| Royal Bank Of Canada | +484K +42.0% | 1.6M | $92.1M |
| CIBC Bancorp Usa Inc. | +346K +13.1% | 3.0M | $168M |
| Morgan Stanley | +312K +6.3% | 5.3M | $297M |
| Cohen & Steers, Inc. | +249K +26.8% | 1.2M | $66.4M |
| Energy Income Partners, LLC | +223K +4.3% | 5.4M | $303M |
| Citadel Advisors LLC Hedge fund | +204K +3886.8% | 209K | $11.8M |
| Neos Investment Management LLC | +152K +45.5% | 486K | $27.4M |
| Susquehanna International Group, LLP | +142K +317.9% | 187K | $10.5M |
| Treasurer Of The State Of North Carolina | +128K New position | 128K | $7.2M |
| Cambridge Investment Research Advisors, Inc. | +95K +102.9% | 187K | $10.5M |
| Americana Partners, LLC | +91K +11.9% | 857K | $48.3M |
| Miller Howard Investments Inc | +86K +3.8% | 2.3M | $131M |
| Indivisible Partners | +85K New position | 85K | $4.8M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | +560K +16.7% | 3.9M | $221M |
| Citadel Advisors LLC Hedge fund | +204K +3886.8% | 209K | $11.8M |
| O'Shaughnessy Asset Management, LLC Active manager | +2,411 +48.8% | 7,347 | $413,857 |
| Brown Advisory Inc Active manager | +901 +0.9% | 97K | $5.5M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Tortoise Capital Advisors, L.L.C. | −2.8M −20.8% | 10.5M | $591M |
| Blackstone Inc. | −2.4M −15.6% | 13.0M | $730M |
| Bank Of Montreal | −1.5M −36.7% | 2.5M | $144M |
| Goldman Sachs Group Inc | −1.2M −9.4% | 11.3M | $638M |
| Kayne Anderson Capital Advisors LP | −964K −14.1% | 5.9M | $330M |
| Brookfield Corp | −818K −37.6% | 1.4M | $76.4M |
| Jpmorgan Chase & Co | −705K −17.1% | 3.4M | $193M |
| ING Groep NV | −529K −29.9% | 1.2M | $69.8M |
| Bank Of America Corp | −503K −19.5% | 2.1M | $117M |
| Fractal Investments LLC | −383K −18.7% | 1.7M | $94M |
| Neuberger Berman Group LLC Active manager | −350K −31.8% | 750K | $42.2M |
| Goldentree Asset Management LP | −345K Sold out | 0 | — |
| Cushing Asset Management, LP Dba Nxg Investment Management | −245K −13.2% | 1.6M | $91M |
| Jump Financial, LLC | −208K −64.6% | 114K | $6.4M |
| Parkwood LLC | −162K Sold out | 0 | — |
| Militia Capital Management LLC | −134K −66.7% | 67K | $3.8M |
| Infrastructure Capital Advisors, LLC | −131K −12.3% | 937K | $52.8M |
| Westwood Holdings Group Inc Active manager | −123K −5.5% | 2.1M | $119M |
| Jennison Associates LLC Active manager | −103K −18.9% | 442K | $24.9M |
| Victory Capital Management Inc Active manager | −99K −10.2% | 873K | $49.2M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Neuberger Berman Group LLC Active manager | −350K −31.8% | 750K | $42.2M |
| Westwood Holdings Group Inc Active manager | −123K −5.5% | 2.1M | $119M |
| Jennison Associates LLC Active manager | −103K −18.9% | 442K | $24.9M |
| Victory Capital Management Inc Active manager | −99K −10.2% | 873K | $49.2M |
| Acadian Asset Management LLC Active manager | −28K Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Mizuho Markets Americas LLC | 575K | $32.4M |
| Recurrent Investment Advisors LLC | 545K | $30.7M |
| Treasurer Of The State Of North Carolina | 128K | $7.2M |
| Indivisible Partners | 85K | $4.8M |
| Group One Trading LLC | 73K | $4.1M |
| Security National Bank | 26K | $1.5M |
| Attessa Capital LLC | 19K | $1M |
| Imc-Chicago, LLC | 15K | $837,796 |
| Gsa Capital Partners LLP | 15K | $832,000 |
| State Of Wyoming | 13K | $714,940 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Goldentree Asset Management LP | 345K | $19.7M |
| Parkwood LLC | 162K | $9.2M |
| Basso Capital Management, L.P. | 71K | $4.1M |
| Aster Capital Management (Difc) Ltd | 74K | $4M |
| Archpoint Investors | 63K | $3.6M |
| Empire Financial Management Company, LLC | 60K | $3.4M |
| Keeler Thomas Management LLC | 40K | $2.3M |
| Quadrant Capital Group LLC | 31K | $1.8M |
| Hartree Partners, LP | 30K | $1.7M |
| Acadian Asset Management LLCActive manager | 28K | $1.6M |
Who holds the shares
- Institutions reporting
- 629
- Ten largest holders
- 58.4% of 13F-reported shares
- Index fund managers
- 0.1% of 13F-reported shares
- Active managers and hedge funds
- 5.9% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 4 | 5 | 0 | 1 | +65K | +0.6% |
| Index fund managers | 2 | 2 | 0 | 0 | +1,732 | +0.8% |
| Other institutions | 287 | 195 | 50 | 55 | −6.0M | −3.2% |