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Signature
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/s/ Molly R. Benson, Attorney-in-Fact for Maryann T. Mannen
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Issuer symbol
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MPLX
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Transactions as of
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01 Mar 2026
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Net transactions value
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-$782,888
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Form type
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4
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Filing time
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03 Mar 2026, 19:34:47 UTC
Reporting Owners (1)
| Name |
Relationship |
Address |
Signature |
Signature date |
CIK |
| Mannen Maryann T. |
Chairman, President & CEO, Director |
C/O MPLX LP, 200 E. HARDIN STREET, FINDLAY |
/s/ Molly R. Benson, Attorney-in-Fact for Maryann T. Mannen |
03 Mar 2026 |
0001408964 |
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
MPLX |
Common Units (Limited Partner Interests) |
Award |
$0 |
+52,817 |
+42% |
$0.000000 |
178,679 |
01 Mar 2026 |
Direct |
|
| transaction |
MPLX |
Common Units (Limited Partner Interests) |
Tax liability |
$201,763 |
-3,407 |
-1.9% |
$59.22 |
175,272 |
02 Mar 2026 |
Direct |
|
| transaction |
MPLX |
Common Units (Limited Partner Interests) |
Tax liability |
$201,585 |
-3,404 |
-1.9% |
$59.22 |
171,868 |
02 Mar 2026 |
Direct |
|
| transaction |
MPLX |
Common Units (Limited Partner Interests) |
Tax liability |
$379,541 |
-6,409 |
-3.7% |
$59.22 |
165,459 |
02 Mar 2026 |
Direct |
|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
Remarks:
The Reporting Person is a Chairman of the Board, President and Chief Executive Officer of MPLX GP LLC, the general partner of the Issuer. The Issuer is managed by the directors and executive officers of MPLX GP LLC.