| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| MPLX | Exec. VP and COO | Mar 01, 2023 | Option Exercise | $34.54 | 2,987 | 103,171 | 79,963 | Mar 03, 2023, 03:26 PM |
| MPC | Ex VP & COO, MPLX GP LLC | Mar 01, 2023 | Option Exercise | $126.52 | 1,295 | 163,843 | 27,396 | Mar 03, 2023, 03:11 PM |
| MPLX | Exec. VP and COO | Dec 02, 2022 | Option Exercise | $33.82 | 320 | 10,822 | 79,892 | Dec 06, 2022, 06:37 AM |
| MPC | Ex VP & COO, MPLX GP LLC | Dec 02, 2022 | Option Exercise | $118.23 | 135 | 15,961 | 26,990 | Dec 06, 2022, 06:26 AM |
| MPLX | Exec. VP and COO | Apr 19, 2022 | Sale | $35.00 | 2,500 | 87,500 | 80,212 | Apr 21, 2022, 03:33 PM |
| MPLX | Exec. VP and COO | Feb 07, 2022 | Sale | $33.20 | 2,500 | 83,000 | 76,836 | Feb 09, 2022, 12:33 PM |
| MPLX | Exec. VP and COO | Nov 19, 2021 | Option Exercise | $29.68 | 367 | 10,893 | 78,556 | Nov 23, 2021, 02:07 PM |
| MPLX | Exec. VP and COO | Nov 08, 2021 | Sale | $31.26 | 5,000 | 156,317 | 81,423 | Nov 10, 2021, 07:01 AM |
| MPLX | Exec. VP and COO | May 06, 2021 | Sale | $27.00 | 2,500 | 67,500 | 83,923 | May 10, 2021, 06:58 AM |
| MPLX | Exec. VP and COO | Mar 01, 2021 | Option Exercise | $24.59 | 1,346 | 33,098 | 78,050 | Mar 03, 2021, 07:28 PM |
| MPLX | COO and Exec. VP | Jan 13, 2021 | Sale | $25.00 | 2,500 | 62,500 | 76,405 | Jan 15, 2021, 03:10 PM |
| MPLX | COO and Exec. VP | Dec 28, 2020 | Option Exercise | $21.50 | 178 | 3,827 | 78,986 | Dec 30, 2020, 10:24 AM |
| MPLX | COO and Exec. VP | Dec 04, 2020 | Sale | $23.00 | 2,500 | 57,500 | 79,083 | Dec 08, 2020, 04:08 PM |
| MPLX | COO and Exec. VP | Nov 18, 2020 | Sale | $21.00 | 2,500 | 52,500 | 81,583 | Nov 20, 2020, 07:07 AM |
| MPLX | Exec VP, Gathering & Proc | Mar 02, 2020 | Option Exercise | $20.08 | 2,728 | 54,778 | 80,593 | Mar 04, 2020, 05:08 PM |
| MPLX | Exec VP, Gathering & Proc | Mar 01, 2019 | Option Exercise | $33.24 | 1,493 | 49,627 | 76,417 | Mar 05, 2019, 12:00 AM |
| MPLX | Exec VP, Gathering & Proc | Dec 18, 2018 | Option Exercise | $32.48 | 3,884 | 126,152 | 77,217 | Dec 20, 2018, 11:44 AM |
| MPLX | Exec VP, Gathering & Proc | Mar 01, 2018 | Option Exercise | $34.66 | 839 | 29,080 | 73,935 | Mar 05, 2018, 02:08 PM |
| MPLX | Exec VP MarkWest Opr | Dec 18, 2017 | Option Exercise | $36.34 | 2,824 | 102,624 | 74,774 | Dec 20, 2017, 09:02 AM |
| MPLX | Exec VP MarkWest Opr | Dec 11, 2017 | Sale | $37.00 | 2,000 | 74,000 | 77,598 | Dec 13, 2017, 01:36 PM |
| MPLX | Exec VP MarkWest Opr | Nov 30, 2017 | Sale | $36.00 | 2,000 | 72,000 | 79,598 | Dec 04, 2017, 08:46 AM |
| MPLX | Exec VP MarkWest Opr | Nov 20, 2017 | Sale | $34.69 | 4,000 | 138,760 | 83,598 | Nov 22, 2017, 08:57 AM |
| MPLX | Exec VP and COO | Jan 24, 2017 | Sale | $37.00 | 1,000 | 37,000 | 77,181 | Jan 26, 2017, 09:43 AM |
| MPLX | Exec VP and COO | Jan 03, 2017 | Sale | $35.00 | 1,000 | 35,000 | 79,181 | Jan 04, 2017, 10:14 AM |
| MPLX | Exec VP and COO | Dec 19, 2016 | Option Exercise | $32.23 | 2,826 | 91,082 | 80,181 | Dec 21, 2016, 03:23 PM |
| MPLX | Exec VP and COO | Oct 12, 2016 | Sale | $31.00 | 1,000 | 31,000 | 83,007 | Oct 13, 2016, 02:38 PM |
| MWE | EVP, Chief Commercial Officer | Dec 04, 2015 | Option Exercise | $38.83 | 19,298 | 749,341 | 0 | Dec 08, 2015, 09:59 AM |
| MWE | EVP, Chief Commercial Officer | Dec 01, 2015 | Option Exercise | $46.00 | 8,997 | 413,862 | 19,298 | Dec 03, 2015, 06:56 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| MPLX | Exec. VP and COO | Mar 01, 2023 | Option Exercise | 103,171 |
| MPC | Ex VP & COO, MPLX GP LLC | Mar 01, 2023 | Option Exercise | 163,843 |
| MPLX | Exec. VP and COO | Dec 02, 2022 | Option Exercise | 10,822 |
| MPC | Ex VP & COO, MPLX GP LLC | Dec 02, 2022 | Option Exercise | 15,961 |
| MPLX | Exec. VP and COO | Apr 19, 2022 | Sale | 87,500 |
| MPLX | Exec. VP and COO | Feb 07, 2022 | Sale | 83,000 |
| MPLX | Exec. VP and COO | Nov 19, 2021 | Option Exercise | 10,893 |
| MPLX | Exec. VP and COO | Nov 08, 2021 | Sale | 156,317 |
| MPLX | Exec. VP and COO | May 06, 2021 | Sale | 67,500 |
| MPLX | Exec. VP and COO | Mar 01, 2021 | Option Exercise | 33,098 |
| MPLX | COO and Exec. VP | Jan 13, 2021 | Sale | 62,500 |
| MPLX | COO and Exec. VP | Dec 28, 2020 | Option Exercise | 3,827 |
| MPLX | COO and Exec. VP | Dec 04, 2020 | Sale | 57,500 |
| MPLX | COO and Exec. VP | Nov 18, 2020 | Sale | 52,500 |
| MPLX | Exec VP, Gathering & Proc | Mar 02, 2020 | Option Exercise | 54,778 |
| MPLX | Exec VP, Gathering & Proc | Mar 01, 2019 | Option Exercise | 49,627 |
| MPLX | Exec VP, Gathering & Proc | Dec 18, 2018 | Option Exercise | 126,152 |
| MPLX | Exec VP, Gathering & Proc | Mar 01, 2018 | Option Exercise | 29,080 |
| MPLX | Exec VP MarkWest Opr | Dec 18, 2017 | Option Exercise | 102,624 |
| MPLX | Exec VP MarkWest Opr | Dec 11, 2017 | Sale | 74,000 |
| MPLX | Exec VP MarkWest Opr | Nov 30, 2017 | Sale | 72,000 |
| MPLX | Exec VP MarkWest Opr | Nov 20, 2017 | Sale | 138,760 |
| MPLX | Exec VP and COO | Jan 24, 2017 | Sale | 37,000 |
| MPLX | Exec VP and COO | Jan 03, 2017 | Sale | 35,000 |
| MPLX | Exec VP and COO | Dec 19, 2016 | Option Exercise | 91,082 |
| MPLX | Exec VP and COO | Oct 12, 2016 | Sale | 31,000 |
| MWE | EVP, Chief Commercial Officer | Dec 04, 2015 | Option Exercise | 749,341 |
| MWE | EVP, Chief Commercial Officer | Dec 01, 2015 | Option Exercise | 413,862 |