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MPLX LP

MPLX
Exchange
NYSE
Industry
Pipe Lines (No Natural Gas)
SEC CIK
0001552000

No open-market purchases or sales by MPLX LP insiders were filed in the last 90 days; 641 institutions reported holding it in 13F filings for Q2 2026, worth $11.1B in total; Appaloosa is the only superinvestor holding it.

SEC filings

10-K, 10-Q, 8-K, 20-F and 40-F reports MPLX LP filed with the SEC, newest first.

Livermore lists each filing's form, 8-K items and dates only. To read a filing, open it on SEC.gov; an 8-K's press release or other attachments, such as exhibit 99.1 for Item 2.02, are in the filing index.

SEC filings by MPLX LP
FiledForm8-K itemsPeriodDocumentFiling index
Nov 3, 202610-Q–Sep 30, 2026SECIndex
Nov 3, 20268-K2.029.01Nov 3, 2026SECIndex
Oct 29, 20268-K5.028.019.01Oct 27, 2026SECIndex
Aug 24, 20268-K8.019.01Aug 24, 2026SECIndex
Aug 4, 202610-Q–Jun 30, 2026SECIndex
Aug 4, 20268-K2.029.01Aug 4, 2026SECIndex
May 5, 202610-Q–Mar 31, 2026SECIndex
May 5, 20268-K2.029.01May 5, 2026SECIndex
Apr 13, 20268-K1.011.022.022.039.01Apr 7, 2026SECIndex
Mar 18, 20268-K5.02Mar 16, 2026SECIndex
Feb 26, 202610-K–Dec 31, 2025SECIndex
Feb 12, 20268-K8.019.01Feb 12, 2026SECIndex
Feb 3, 20268-K2.029.01Feb 3, 2026SECIndex
Dec 18, 20258-K5.02Dec 12, 2025SECIndex
Nov 4, 20258-K5.028.019.01Oct 29, 2025SECIndex
Nov 4, 202510-Q–Sep 30, 2025SECIndex
Nov 4, 20258-K2.029.01Nov 4, 2025SECIndex
Aug 25, 20258-K5.02Aug 25, 2025SECIndex
Aug 11, 20258-K8.019.01Aug 11, 2025SECIndex
Aug 5, 202510-Q–Jun 30, 2025SECIndex
Aug 5, 20258-K2.029.01Aug 5, 2025SECIndex
May 6, 202510-Q–Mar 31, 2025SECIndex
May 6, 20258-K2.029.01May 6, 2025SECIndex
Mar 10, 20258-K8.019.01Mar 3, 2025SECIndex
Feb 27, 202510-K–Dec 31, 2024SECIndex
Feb 4, 20258-K2.029.01Feb 4, 2025SECIndex
Jan 28, 20258-K5.02Jan 22, 2025SECIndex
Nov 5, 202410-Q–Sep 30, 2024SECIndex
Nov 5, 20248-K2.029.01Nov 5, 2024SECIndex
Aug 6, 20248-K/A5.02May 11, 2024SECIndex
Aug 6, 202410-Q–Jun 30, 2024SECIndex
Aug 6, 20248-K2.029.01Aug 6, 2024SECIndex
May 20, 20248-K8.019.01May 20, 2024SECIndex
May 13, 20248-K5.028.019.01May 11, 2024SECIndex
Apr 30, 202410-Q–Mar 31, 2024SECIndex
Apr 30, 20248-K2.029.01Apr 30, 2024SECIndex
Feb 28, 202410-K–Dec 31, 2023SECIndex
Jan 30, 20248-K2.029.01Jan 30, 2024SECIndex
Dec 21, 20238-K5.029.01Dec 21, 2023SECIndex
Oct 31, 202310-Q–Sep 30, 2023SECIndex
Oct 31, 20238-K2.029.01Oct 31, 2023SECIndex
Oct 30, 20238-K5.02Oct 29, 2023SECIndex
Aug 1, 202310-Q–Jun 30, 2023SECIndex
Aug 1, 20238-K2.029.01Aug 1, 2023SECIndex
May 3, 20238-K5.02May 1, 2023SECIndex
May 2, 202310-Q–Mar 31, 2023SECIndex
May 2, 20238-K2.029.01May 2, 2023SECIndex
Feb 23, 202310-K–Dec 31, 2022SECIndex
Feb 9, 20238-K8.019.01Feb 9, 2023SECIndex
Jan 31, 20238-K2.029.01Jan 31, 2023SECIndex