MPLX Insider Trading

MPLX · full profile →Last filing May 15, 2026
Mixed · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$0
open market, 180d
Reporting Insiders
0
0 P/S transactions
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Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
May 15, 2026Walker Ray N JRDirectorGrant(A)78$0
May 15, 2026Surma John PDirectorGrant(A)2K$0
May 15, 2026Stice J MichaelDirectorGrant(A)1K$0
May 15, 2026Semple Frank MDirectorGrant(A)1K$0
May 15, 2026Peiffer Garry L.DirectorGrant(A)1K$0
May 15, 2026Helms Christopher ADirectorGrant(A)1K$0
May 15, 2026Breves Christine SDirectorGrant(A)277$0
Apr 30, 2026Walker Ray N JRDirectorGrant(A)2K$0
Apr 30, 2026Surma John PDirectorGrant(A)3K$0
Apr 30, 2026Stice J MichaelDirectorGrant(A)3K$0
Apr 30, 2026Semple Frank MDirectorGrant(A)3K$0
Apr 30, 2026Peiffer Garry L.DirectorGrant(A)2K$0
Apr 30, 2026Helms Christopher ADirectorGrant(A)2K$0
Apr 30, 2026Breves Christine SDirectorGrant(A)2K$0
Mar 2, 2026Floerke Gregory ScottExec. VP and COOTax withholding(F)797$59.22$47K
Mar 2, 2026Floerke Gregory ScottExec. VP and COOTax withholding(F)1K$59.22$65K
Mar 2, 2026Floerke Gregory ScottExec. VP and COOTax withholding(F)995$59.22$59K
Mar 2, 2026Mannen Maryann T.Chairman, President & CEO, DirectorTax withholding(F)3K$59.22$202K
Mar 2, 2026Mannen Maryann T.Chairman, President & CEO, DirectorTax withholding(F)3K$59.22$202K
Mar 2, 2026Mannen Maryann T.Chairman, President & CEO, DirectorTax withholding(F)6K$59.22$380K
Mar 2, 2026Hagedorn Carl KristopherExec VP & Chief Fin Ofc, DirectorTax withholding(F)422$59.22$25K
Mar 2, 2026Hagedorn Carl KristopherExec VP & Chief Fin Ofc, DirectorTax withholding(F)916$59.22$54K
Mar 2, 2026Hagedorn Carl KristopherExec VP & Chief Fin Ofc, DirectorTax withholding(F)663$59.22$39K
Mar 2, 2026Lyon Shawn MSenior VP, Log. & StorageTax withholding(F)920$59.22$54K
Mar 2, 2026Lyon Shawn MSenior VP, Log. & StorageTax withholding(F)1K$59.22$61K
Mar 2, 2026Lyon Shawn MSenior VP, Log. & StorageTax withholding(F)798$59.22$47K
Mar 2, 2026Benson Molly RChief Legal Ofc & Corp SecTax withholding(F)1K$59.22$73K
Mar 2, 2026Benson Molly RChief Legal Ofc & Corp SecTax withholding(F)998$59.22$59K
Mar 2, 2026Benson Molly RChief Legal Ofc & Corp SecTax withholding(F)614$59.22$36K
Mar 1, 2026Floerke Gregory ScottExec. VP and COOGrant(A)6K$0
Mar 1, 2026Mannen Maryann T.Chairman, President & CEO, DirectorGrant(A)53K$0
Mar 1, 2026Hagedorn Carl KristopherExec VP & Chief Fin Ofc, DirectorGrant(A)5K$0
Mar 1, 2026Lyon Shawn MSenior VP, Log. & StorageGrant(A)6K$0
Mar 1, 2026Benson Molly RChief Legal Ofc & Corp SecGrant(A)9K$0
Mar 1, 2026Khoury Maria ADirectorGrant(A)8K$0
Feb 17, 2026Breves Christine SDirectorGrant(A)218$0
Feb 17, 2026Helms Christopher ADirectorGrant(A)1K$0
Feb 17, 2026Peiffer Garry L.DirectorGrant(A)1K$0
Feb 17, 2026Semple Frank MDirectorGrant(A)1K$0
Feb 17, 2026Stice J MichaelDirectorGrant(A)982$0
Feb 17, 2026Surma John PDirectorGrant(A)2K$0
Feb 17, 2026Walker Ray N JRDirectorGrant(A)32$0
Dec 12, 2025Benson Molly RChief Legal Ofc & Corp SecTax withholding(F)306$54.85$17K
Dec 12, 2025Floerke Gregory ScottExec. VP and COOTax withholding(F)242$54.85$13K
Dec 12, 2025Hennigan Michael JExecutive Chairman, DirectorTax withholding(F)1K$54.85$73K
Dec 12, 2025Lyon Shawn MSenior VP, Log. & StorageTax withholding(F)245$54.85$13K
Nov 14, 2025Breves Christine SDirectorGrant(A)230$0
Nov 14, 2025Helms Christopher ADirectorGrant(A)1K$0
Nov 14, 2025Peiffer Garry L.DirectorGrant(A)1K$0
Nov 14, 2025Semple Frank MDirectorGrant(A)1K$0
Nov 14, 2025Stice J MichaelDirectorGrant(A)1K$0
Nov 14, 2025Surma John PDirectorGrant(A)2K$0
Nov 14, 2025Walker Ray N JRDirectorGrant(A)34$0
Aug 25, 2025Walker Ray N JRDirectorGrant(A)2K$0
Aug 15, 2025Helms Christopher ADirectorGrant(A)1K$0
Aug 15, 2025Surma John PDirectorGrant(A)1K$0
Aug 15, 2025Semple Frank MDirectorGrant(A)1K$0
Aug 15, 2025Stice J MichaelDirectorGrant(A)962$0
Aug 15, 2025Peiffer Garry L.DirectorGrant(A)1K$0
Aug 15, 2025Breves Christine SDirectorGrant(A)214$0
May 16, 2025Breves Christine SDirectorGrant(A)201$0
May 16, 2025Helms Christopher ADirectorGrant(A)1K$0
May 16, 2025Peiffer Garry L.DirectorGrant(A)1K$0
May 16, 2025Semple Frank MDirectorGrant(A)990$0
May 16, 2025Stice J MichaelDirectorGrant(A)907$0
May 16, 2025Surma John PDirectorGrant(A)1K$0
May 1, 2025Breves Christine SDirectorGrant(A)2K$0
May 1, 2025Helms Christopher ADirectorGrant(A)2K$0
May 1, 2025Peiffer Garry L.DirectorGrant(A)2K$0
May 1, 2025Semple Frank MDirectorGrant(A)3K$0
May 1, 2025Stice J MichaelDirectorGrant(A)3K$0
May 1, 2025Surma John PDirectorGrant(A)3K$0
Apr 1, 2025Breves Christine SDirectorGrant(A)192$0
Apr 1, 2025Helms Christopher ADirectorGrant(A)192$0
Apr 1, 2025Peiffer Garry L.DirectorGrant(A)192$0
Apr 1, 2025Stice J MichaelDirectorGrant(A)220$0
Apr 1, 2025Semple Frank MDirectorGrant(A)220$0
Apr 1, 2025Surma John PDirectorGrant(A)220$0
Mar 7, 2025Lyon Shawn MSenior VP, Log. & StorageBuy(P)4K$52.75$211K
Mar 3, 2025Benson Molly RChief Legal Ofc & Corp SecTax withholding(F)1K$54.34$69K
Mar 3, 2025Benson Molly RChief Legal Ofc & Corp SecTax withholding(F)580$54.34$32K
Mar 3, 2025Benson Molly RChief Legal Ofc & Corp SecTax withholding(F)625$54.34$34K
Mar 3, 2025Floerke Gregory ScottExec. VP and COOTax withholding(F)1K$54.34$60K
Mar 3, 2025Floerke Gregory ScottExec. VP and COOTax withholding(F)1K$54.34$57K
Mar 3, 2025Floerke Gregory ScottExec. VP and COOTax withholding(F)995$54.34$54K
Mar 3, 2025Hagedorn Carl KristopherExec VP & Chief Fin Ofc, DirectorTax withholding(F)448$54.34$24K
Mar 3, 2025Hagedorn Carl KristopherExec VP & Chief Fin Ofc, DirectorTax withholding(F)422$54.34$23K
Mar 3, 2025Hagedorn Carl KristopherExec VP & Chief Fin Ofc, DirectorTax withholding(F)910$54.34$49K
Mar 3, 2025Hennigan Michael JExecutive Chairman, DirectorTax withholding(F)10K$54.34$549K
Mar 3, 2025Hennigan Michael JExecutive Chairman, DirectorTax withholding(F)10K$54.34$553K
Mar 3, 2025Hennigan Michael JExecutive Chairman, DirectorTax withholding(F)10K$54.34$536K
Mar 3, 2025Lyon Shawn MSenior VP, Log. & StorageTax withholding(F)1K$54.34$57K
Mar 3, 2025Lyon Shawn MSenior VP, Log. & StorageTax withholding(F)936$54.34$51K
Mar 3, 2025Mannen Maryann T.President & CEO, DirectorTax withholding(F)3K$54.34$179K
Mar 3, 2025Mannen Maryann T.President & CEO, DirectorTax withholding(F)3K$54.34$185K
Mar 3, 2025Mannen Maryann T.President & CEO, DirectorTax withholding(F)3K$54.34$185K
Mar 3, 2025Quaid John JDirectorTax withholding(F)2K$54.34$129K
Mar 3, 2025Quaid John JDirectorTax withholding(F)1K$54.34$70K
Mar 3, 2025Quaid John JDirectorTax withholding(F)1K$54.34$69K
Mar 1, 2025Benson Molly RChief Legal Ofc & Corp SecGrant(A)8K$0

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-292026-07-14. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).