MPLX
MPLX Lp · Energy · Oil & Gas Midstream
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -9.2% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 73 | +2 | 84.75M | $4.77B | +3 | −1 |
| Q1 2026 | 72 | 0 | 86.10M | $4.91B | +4 | −4 |
| Q4 2025 | 71 | +1 | 84.21M | $4.49B | +1 | — |
| Q3 2025 | 6 | -2 | 29.86M | $1.49B | — | −2 |
| Q2 2025 | 5 | 0 | 2.82M | $145.29M | — | — |
| Q1 2025 | 3 | -1 | 1.10M | $58.66M | — | −1 |
| Q4 2024 | 4 | +1 | 1.26M | $60.50M | +1 | — |
| Q3 2024 | 3 | 0 | 610.71K | $27.15M | — | — |
| Q2 2024 | 3 | — | 628.51K | $26.77M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 1.42M | — | $73.33M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 585.59K | — | $30.16M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 585.59K | — | $30.16M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 585.59K | — | $30.16M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 585.59K | — | $30.16M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 585.59K | — | $30.16M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Appaloosa ✦ | 578.50K | 0.0% | $29.80M | 0.5% | Held | 5 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 216.42K | -56.9% | $11.15M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 9 | Geode Capital Management ✦ (passive) | 16.56K | +6.6% | $852,851 | 0.0% | ▲ Add | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 642 holders, 198.60M shares, $10.91B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.