Donald C. Templin serves as Executive at Marathon Petroleum Corp, where they oversee executive responsibilities. Since joining the company, Donald C. Templin has executed 110 insider transactions totaling $1.9M, demonstrating a bullish approach to their equity position. Their most recent transaction on Oct 15, 2025 involved selling 124,906 shares valued at $0.
Donald C. Templin currently holds 119,005 shares of Marathon Petroleum Corp (MPC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Donald C. Templin has been a net buyer of MPC stock. They have purchased $1.9M and sold $0 worth of shares.
Donald C. Templin's most recent insider trade was on Oct 15, 2025, when they sold 124,906 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Feb 20, 2024 | VOYA | $131.9K | Payment | 1,880 | $70.14 | Discretionary |
| Feb 20, 2024 | VOYA | $0 | Option Exercise | 6,135 | $N/A | Discretionary |
| Jul 1, 2023 | ARIS | $0 | Award | 13,566 | $N/A | Discretionary |
| Jul 1, 2022 | ARIS | $0 | Award | 8,394 | $N/A | Discretionary |
| Nov 19, 2021 | MPLX | $0 | Award | 69.7 | $N/A | Discretionary |
| Oct 26, 2021 | ARIS | $1000.0K | Purchase | 76,923 | $13.00 | Discretionary |
| Oct 26, 2021 | ARIS | $0 | Award | 10,770 | $N/A | Discretionary |
| Oct 1, 2021 | MPLX | $0 | Award | 950.24 | $N/A | Discretionary |
| Aug 13, 2021 | MPLX | $0 | Award | 15.84 | $N/A | Discretionary |
| Aug 2, 2021 | MPLX | $0 | Disposition | 13,288 | $N/A | Discretionary |
| Aug 2, 2021 | MPLX | $0 | Award | 650.04 | $N/A | Discretionary |
| Mar 1, 2021 | MPLX | $37.5K | Payment | 1,523 | $24.59 | Discretionary |
| Mar 1, 2021 | MPLX | $39.4K | Payment | 1,601 | $24.59 | Discretionary |
| Mar 1, 2021 | MPLX | $71.6K | Payment | 2,913 | $24.59 | Discretionary |
| Jan 29, 2021 | MPC | $0 | Award | 5,651 | $N/A | Discretionary |
| Jan 28, 2021 | MPLX | $0 | Award | 3,664 | $N/A | Discretionary |
| Dec 28, 2020 | MPC | $121.8K | Payment | 2,986 | $40.78 | Discretionary |
| Dec 28, 2020 | MPC | $58.9K | Payment | 1,444 | $40.78 | Discretionary |
| Dec 28, 2020 | MPLX | $3.3K | Payment | 154 | $21.50 | Discretionary |
| Dec 28, 2020 | MPLX | $6.9K | Payment | 323 | $21.50 | Discretionary |
| Mar 2, 2020 | MPLX | $33.7K | Payment | 1,676 | $20.08 | Discretionary |
| Mar 2, 2020 | MPLX | $92.6K | Payment | 4,614 | $20.08 | Discretionary |
| Mar 2, 2020 | MPLX | $35.4K | Payment | 1,762 | $20.08 | Discretionary |
| Mar 2, 2020 | MPLX | $0 | Award | 19,931 | $N/A | Discretionary |
| Mar 2, 2020 | MPC | $0 | Award | 13,409 | $N/A | Discretionary |
| Mar 2, 2020 | MPC | $16.2K | Payment | 345 | $46.95 | Discretionary |
| Mar 2, 2020 | MPC | $67.8K | Payment | 1,444 | $46.95 | Discretionary |
| Mar 2, 2020 | MPC | $70.1K | Payment | 1,493 | $46.95 | Discretionary |