Security record · archived quarter
MPC
Marathon Petroleum Corporation · Energy · Oil & Gas Refining & Marketing
19Tracked holders
+1Δ holders
115.64MShares held
$19.20BReported value
+2New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +5.6% ·
share flow -0.2% ·
net new positions +5.3%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 160 | +5 | 171.40M | $43.83B | +7 | −1 |
| Q1 2026 | 157 | -1 | 173.92M | $42.44B | +4 | −6 |
| Q4 2025 | 157 | +3 | 196.31M | $31.93B | +4 | — |
| Q3 2025 | 22 | +1 | 125.00M | $24.09B | +2 | −2 |
| Q2 2025 | 19 | +1 | 115.64M | $19.20B | +2 | −1 |
| Q1 2025 | 15 | 0 | 50.29M | $7.32B | +1 | −1 |
| Q4 2024 | 15 | 0 | 46.72M | $6.51B | +1 | −1 |
| Q3 2024 | 14 | -1 | 22.70M | $3.69B | +1 | −2 |
| Q2 2024 | 15 | — | 25.65M | $4.45B | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 38.87M | — | $6.46B | 0.1% | n/c | 1 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 38.87M | — | $6.46B | 0.1% | n/c | 1 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 38.87M | — | $6.46B | 0.1% | n/c | 1 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 38.87M | — | $6.46B | 0.1% | n/c | 1 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 38.87M | — | $6.46B | 0.1% | n/c | 1 | SEC ↗ |
| 6 | The Vanguard Group ✦ (passive) | 38.87M | — | $6.46B | 0.1% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 23 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 24 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 25 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 26 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 27 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 28 | BlackRock ✦ (passive) | 23.42M | — | $3.89B | 0.1% | n/c | 1 | SEC ↗ |
| 29 | State Street Global Advisors ✦ (passive) | 18.44M | -5.3% | $3.06B | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 30 | Wellington Management ✦ | 11.68M | -1.2% | $1.94B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 31 | Wellington Management ✦ | 11.68M | -1.2% | $1.94B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 32 | Wellington Management ✦ | 11.68M | -1.2% | $1.94B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 33 | Wellington Management ✦ | 11.68M | -1.2% | $1.94B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 34 | Wellington Management ✦ | 11.68M | -1.2% | $1.94B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 35 | Wellington Management ✦ | 11.68M | -1.2% | $1.94B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 36 | Wellington Management ✦ | 11.68M | -1.2% | $1.94B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 37 | Wellington Management ✦ | 11.68M | -1.2% | $1.94B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 38 | Geode Capital Management ✦ (passive) | 8.01M | +14.8% | $1.33B | 0.1% | ▲ Add | 5 | SEC ↗ |
| 39 | Geode Capital Management ✦ (passive) | 8.01M | +14.8% | $1.33B | 0.1% | ▲ Add | 5 | SEC ↗ |
| 40 | Harris Associates (Oakmark) ✦ | 4.13M | +93.2% | $685.77M | 1.1% | ▲ Add | 2 | SEC ↗ |
| 41 | Harris Associates (Oakmark) ✦ | 4.13M | +93.2% | $685.77M | 1.1% | ▲ Add | 2 | SEC ↗ |
| 42 | Fidelity (FMR) ✦ | 3.35M | — | $556.82M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Fidelity (FMR) ✦ | 3.35M | — | $556.82M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Fidelity (FMR) ✦ | 3.35M | — | $556.82M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Fidelity (FMR) ✦ | 3.35M | — | $556.82M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | T. Rowe Price ✦ | 3.33M | -9.3% | $553.64M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 47 | T. Rowe Price ✦ | 3.33M | -9.3% | $553.64M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 48 | T. Rowe Price ✦ | 3.33M | -9.3% | $553.64M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 49 | Norges Bank ✦ (passive) | 3.17M | -0.2% | $527.20M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 50 | AQR Capital Management ✦ | 534.54K | -46.5% | $88.79M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 51 | AQR Capital Management ✦ | 534.54K | -46.5% | $88.79M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 52 | AQR Capital Management ✦ | 534.54K | -46.5% | $88.79M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 53 | AQR Capital Management ✦ | 534.54K | -46.5% | $88.79M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 54 | AQR Capital Management ✦ | 534.54K | -46.5% | $88.79M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 534.54K | -46.5% | $88.79M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 56 | Two Sigma Investments ✦ | 157.23K | -56.2% | $26.12M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 57 | Millennium Management ✦ | 142.15K | -78.7% | $23.61M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 58 | Bridgewater Associates ✦ | 126.49K | New | $21.01M | 0.1% | New | 1 | SEC ↗ |
| 59 | Adage Capital Partners ✦ | 106.36K | -61.1% | $17.67M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 60 | Gotham Asset Management ✦ | 89.76K | +19.9% | $14.91M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 61 | Marshall Wace ✦ | 51.20K | New | $8.51M | 0.0% | New | 1 | SEC ↗ |
| 62 | Fisher Asset Management ✦ | 18.78K | +3.6% | $3.12M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 63 | GAMCO Investors ✦ | 8.02K | +402.8% | $1.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 64 | D. E. Shaw & Co. ✦ | 7.04K | -95.7% | $1.17M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 65 | D. E. Shaw & Co. ✦ | 7.04K | -95.7% | $1.17M | 0.0% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Bridgewater Associates | $21.01M | 0.1% |
| Marshall Wace | $8.51M | 0.0% |
Exited
| Citadel Advisors | $68.11M | was 0.1% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,874 holders, 216.66M shares, $50.91B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 17
Benson Molly R
Officer · 7.20K sh · $2.58M
Aug 17
Benson Molly R
Officer · 5.00K sh · $1.79M
Aug 13
Lyon Shawn M
Officer · 2.50K sh · $875,000
Aug 12
Henschen Michael A II
Officer · 6.01K sh · $2.05M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2025 ·
Methodology ·
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