List of insiders holdings for MPLX LP:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Insider Holder NameReport
Date Time		Shares Owned
Directly
Indirectly		Total
Shares Owned		Filing
Marathon Petroleum Corp
MPC Investment LLC
MPLX Logistics Holdings LLC
MPLX GP LLC
ANDEAVOR LLC
Western Refining Inc.
TTC Holdings LLC
Giant Industries Inc.
Director
10% Owner		2022-10-04 16:29:45647,415,452
0		647,415,452Form 13D
Marathon Petroleum Corp
Tesoro Alaska Co LLC
Director
10% Owner		2022-10-04 16:29:45647,415,452
0		647,415,452Form 13D
Marathon Petroleum Corp
MPC Investment LLC
MPLX GP LLC
MPLX Logistics Holdings LLC
Western Refining Southwest Inc.
Tesoro Logistics GP LLC
ANDEAVOR LLC
Western Refining Inc.
Giant Industries Inc.
TESORO REFINING & MARKETING Co LLC
Director
10% Owner		2022-10-04 16:29:45647,415,452
0		647,415,452Form 13D
Marathon Petroleum Corp
MARKWEST HYDROCARBON L.L.C.
MPC Investment LLC
MPLX Holdings Inc.
MPLX Logistics Holdings LLC
MPLX GP LLC
Director
10% Owner		2022-10-04 16:29:45647,415,452
0		647,415,452Form 13D
Marathon Petroleum Corp
MPC Investment LLC
MPLX GP LLC
MPLX Logistics Holdings LLC
MPLX Holdings Inc.
Director
10% Owner		2022-10-04 16:29:45647,415,452
0		647,415,452Form 13D
SEMPLE FRANK M
Director		2023-01-05 09:47:5435,599
493,294		528,893Form 4
MOLLENKOPF JOHN C
Exec VP and COO		2015-12-22 20:37:52413,452
0		413,452Form 4
Goff Gregory James
Director		2019-12-18 15:23:21385,168
0		385,168Form 4
Heminger Gary R.
Director		2020-03-04 16:56:29126,695
174,513		301,208Form 4
Hennigan Michael J
President & CEO		2023-01-27 07:07:13267,233
0		267,233Form 4
Buese Nancy
Exec VP and CFO		2016-09-27 08:07:10182,779
0		182,779Form 4
NICKERSON RANDY S
Exec VP and CCO		2017-03-16 15:52:59177,552
0		177,552Form 4
SANDMAN DAN D
Director		2023-01-05 09:45:43126,252
0		126,252Form 4
Bromley C Corwin
Exec. VP and Gen Counsel		2017-09-15 16:26:33121,205
0		121,205Form 4
Peiffer Garry L.
Director		2023-01-05 09:42:3041,271
68,497		109,768Form 4
Templin Donald C.
Director		2021-11-23 13:55:4681,538
18,000		99,538Form 4
Floerke Gregory Scott
Exec. VP and COO		2023-01-27 07:02:1380,690
0		80,690Form 4
SURMA JOHN P
Director		2023-01-05 09:51:4861,119
0		61,119Form 4
Gagle Suzanne
General Counsel		2023-01-27 07:04:2960,011
0		60,011Form 4
HELMS CHRISTOPHER A
Director		2023-01-05 09:39:3056,622
0		56,622Form 4
Mannen Maryann T.
Director		2022-03-03 17:01:5153,858
0		53,858Form 4
Beall Pamela K.M.
Director		2021-12-13 06:52:2343,247
10000		53,247Form 4
BEATTY MICHAEL L
Director		2021-04-05 06:34:5151,726
0		51,726Form 4
Rosson Paula L
Senior VP and CAO		2017-04-05 09:36:0545,480
0		45,480Form 4
Griffith Timothy T.
Director		2019-03-05 16:46:5536,846
0		36,846Form 4
Aydt Timothy J
Exec. VP and Chief Comm Ofc.		2022-03-03 16:53:0434,371
0		34,371Form 4
STICE J MICHAEL
Director		2023-01-05 09:49:4731,862
700		32,562Form 4
Swearingen John S
Exec VP Logistics & Storage		2020-03-04 17:15:0026,738
0		26,738Form 4
Wilder J. Michael
VP General Counsel & Sec		2015-03-04 13:19:534113
22,500		26,613Form 4
Quaid John J
Exec VP and CFO		2023-01-27 07:10:1726,156
0		26,156Form 4
Daberko David A.
Director		2018-04-04 14:14:3423,872
0		23,872Form 4
Wilson C. Richard
Director		2017-11-16 09:16:2420,616
0		20,616Form 4
Kaczynski Thomas
Senior VP Finance & Treasurer		2022-12-06 06:44:1318,091
0		18,091Form 4
HAGEDORN CARL KRISTOPHER
VP and Controller		2021-04-05 06:32:367445
0		7445Form 4
Shaffner George P.
VP and Chief Operating Officer		2015-03-04 12:48:227009
0		7009Form 4
Braddock Michael G.
VP and Chief Acct. Officer		2014-03-05 14:39:385767
0		5767Form 4
Pierson Craig O.
Vice President Operations		2016-04-05 15:46:484981
0		4981Form 4
Lyon Shawn M
Senior VP Log. & Storage		2022-09-30 15:31:074098
0		4098Form 3
Breves Christine S
Director		2023-01-05 09:37:131248.61
0		1248.61Form 4
Feldman Ian D
Controller		2015-04-02 15:49:2452
0		52Form 4
Wright Kelly D
VP and Controller		2021-09-02 06:53:150
0		0Form 3