Mplx LP SEC filings MPLX
Mplx LP has 1,001 filings in SEC EDGAR's recent list, going back to Jan 5, 2017. Its latest annual report, Form 10-K, was filed on Feb 26, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 3, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 3, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 3, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2026 | Nov 3, 2026 |
| 8-K |
Current report
Officer or director change, Other events
|
Oct 29, 2026 | Oct 27, 2026 |
| 8-K |
Current report
Other events
|
Aug 24, 2026 | Aug 24, 2026 |
| 424B5 | Prospectus supplement | Aug 11, 2026 | — |
| FWP | Free writing prospectus | Aug 10, 2026 | — |
| 424B5 | Prospectus supplement | Aug 10, 2026 | — |
| 10-Q | Quarterly report | Aug 4, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2026 | Aug 4, 2026 |
| S-3ASR | Automatic shelf registration | May 6, 2026 | — |
| 10-Q | Quarterly report | May 5, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 5, 2026 | May 5, 2026 |
| 8-K |
Current report
Material agreement, Agreement ended, Results of operations, New debt
|
Apr 13, 2026 | Apr 7, 2026 |
| 8-K |
Current report
Officer or director change
|
Mar 18, 2026 | Mar 16, 2026 |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Other events
|
Feb 12, 2026 | Feb 12, 2026 |
| 424B5 | Prospectus supplement | Feb 6, 2026 | — |
| FWP | Free writing prospectus | Feb 5, 2026 | — |
| 424B5 | Prospectus supplement | Feb 5, 2026 | — |
| 8-K |
Current report
Results of operations
|
Feb 3, 2026 | Feb 3, 2026 |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2025 | Dec 12, 2025 |
| 8-K |
Current report
Officer or director change, Other events
|
Nov 4, 2025 | Oct 29, 2025 |
| 10-Q | Quarterly report | Nov 4, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2025 | Nov 4, 2025 |
| 8-K |
Current report
Officer or director change
|
Aug 25, 2025 | Aug 25, 2025 |
| 8-K |
Current report
Other events
|
Aug 11, 2025 | Aug 11, 2025 |
| 424B5 | Prospectus supplement | Aug 8, 2025 | — |
| FWP | Free writing prospectus | Aug 7, 2025 | — |
| 424B5 | Prospectus supplement | Aug 7, 2025 | — |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2025 | Aug 5, 2025 |
| 10-Q | Quarterly report | May 6, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 6, 2025 | May 6, 2025 |
| 8-K |
Current report
Other events
|
Mar 10, 2025 | Mar 3, 2025 |
| 424B5 | Prospectus supplement | Mar 4, 2025 | — |
| FWP | Free writing prospectus | Mar 3, 2025 | — |
| 424B5 | Prospectus supplement | Mar 3, 2025 | — |
| 10-K | Annual report | Feb 27, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2025 | Feb 4, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 28, 2025 | Jan 22, 2025 |
| 10-Q | Quarterly report | Nov 5, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2024 | Nov 5, 2024 |
| 8-K/A |
Amended current report
Officer or director change
|
Aug 6, 2024 | May 11, 2024 |
| 10-Q | Quarterly report | Aug 6, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2024 | Aug 6, 2024 |
| 8-K |
Current report
Other events
|
May 20, 2024 | May 20, 2024 |
| 424B5 | Prospectus supplement | May 17, 2024 | — |
| FWP | Free writing prospectus | May 15, 2024 | — |
| 424B5 | Prospectus supplement | May 15, 2024 | — |
| 8-K |
Current report
Officer or director change, Other events
|
May 13, 2024 | May 11, 2024 |
| 10-Q | Quarterly report | Apr 30, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2024 | Apr 30, 2024 |
| 10-K | Annual report | Feb 28, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Jan 30, 2024 | Jan 30, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 21, 2023 | Dec 21, 2023 |
| 10-Q | Quarterly report | Oct 31, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2023 | Oct 31, 2023 |
| 8-K |
Current report
Officer or director change
|
Oct 30, 2023 | Oct 29, 2023 |
| 10-Q | Quarterly report | Aug 1, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2023 | Aug 1, 2023 |
| S-3ASR | Automatic shelf registration | May 15, 2023 | — |
| 8-K |
Current report
Officer or director change
|
May 3, 2023 | May 1, 2023 |
| 10-Q | Quarterly report | May 2, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 2, 2023 | May 2, 2023 |
| 10-K | Annual report | Feb 23, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Other events
|
Feb 9, 2023 | Feb 9, 2023 |
| 424B5 | Prospectus supplement | Feb 6, 2023 | — |
| FWP | Free writing prospectus | Feb 3, 2023 | — |
| 424B5 | Prospectus supplement | Feb 2, 2023 | — |
| 8-K |
Current report
Results of operations
|
Jan 31, 2023 | Jan 31, 2023 |
| 8-K |
Current report
Officer or director change
|
Nov 16, 2022 | Nov 16, 2022 |
| 10-Q | Quarterly report | Nov 1, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2022 | Nov 1, 2022 |
| 8-K |
Current report
Other events
|
Oct 11, 2022 | Oct 11, 2022 |
| 8-K |
Current report
Officer or director change
|
Aug 22, 2022 | Aug 22, 2022 |
| 8-K |
Current report
Other events
|
Aug 11, 2022 | Aug 11, 2022 |
| 424B5 | Prospectus supplement | Aug 10, 2022 | — |
| FWP | Free writing prospectus | Aug 8, 2022 | — |
| 424B5 | Prospectus supplement | Aug 8, 2022 | — |
| 10-Q | Quarterly report | Aug 2, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2022 | Aug 2, 2022 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Jul 12, 2022 | Jul 7, 2022 |
| 8-K |
Current report
Material agreement
|
Jul 7, 2022 | Jun 30, 2022 |
| 10-Q | Quarterly report | May 3, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 3, 2022 | May 3, 2022 |
| 8-K |
Current report
Other events
|
Apr 21, 2022 | Apr 21, 2022 |
| 8-K |
Current report
Other events
|
Mar 14, 2022 | Mar 14, 2022 |
| 424B5 | Prospectus supplement | Mar 14, 2022 | — |
| FWP | Free writing prospectus | Mar 10, 2022 | — |
| 424B5 | Prospectus supplement | Mar 10, 2022 | — |
| 10-K | Annual report | Feb 24, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 2, 2022 | Feb 2, 2022 |
| 8-K |
Current report
Officer or director change
|
Dec 3, 2021 | Nov 29, 2021 |
| 8-K/A |
Amended current report
Results of operations
|
Nov 2, 2021 | Nov 2, 2021 |
| 10-Q | Quarterly report | Nov 2, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2021 | Nov 2, 2021 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 4, 2021 | Jul 30, 2021 |
| 10-Q | Quarterly report | Aug 4, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2021 | Aug 4, 2021 |
| UPLOAD | Letter from the SEC | May 20, 2021 | — |
| CORRESP | Letter to the SEC | May 14, 2021 | — |
| UPLOAD | Letter from the SEC | May 7, 2021 | — |
| 10-Q | Quarterly report | May 6, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 4, 2021 | May 4, 2021 |
| 8-K |
Current report
Officer or director change
|
Apr 26, 2021 | Apr 20, 2021 |
| 10-K | Annual report | Feb 26, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Feb 3, 2021 | Feb 1, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 2, 2021 | Feb 2, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 1, 2021 | Feb 1, 2021 |
| 10-Q | Quarterly report | Nov 6, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Material agreement
|
Nov 5, 2020 | Nov 1, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2020 | Nov 2, 2020 |
| 8-K |
Current report
Exit or restructuring costs
|
Sep 30, 2020 | Sep 29, 2020 |
| S-3ASR | Automatic shelf registration | Aug 27, 2020 | — |
| 8-K |
Current report
Officer or director change
|
Aug 21, 2020 | Aug 17, 2020 |
| 8-K |
Current report
Other events
|
Aug 18, 2020 | Aug 18, 2020 |
| 424B5 | Prospectus supplement | Aug 13, 2020 | — |
| FWP | Free writing prospectus | Aug 11, 2020 | — |
| 424B5 | Prospectus supplement | Aug 11, 2020 | — |
| 8-K |
Current report
Officer or director change
|
Aug 10, 2020 | Aug 10, 2020 |
| 10-Q | Quarterly report | Aug 3, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2020 | Aug 3, 2020 |
| 10-Q | Quarterly report | May 7, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 5, 2020 | May 5, 2020 |
| 8-K |
Current report
Officer or director change
|
May 4, 2020 | Apr 28, 2020 |
| EFFECT | Filing | Apr 20, 2020 | — |
| 424B3 | Prospectus | Apr 20, 2020 | — |
| CORRESP | Letter to the SEC | Apr 16, 2020 | — |
| CORRESP | Letter to the SEC | Apr 16, 2020 | — |
| CORRESP | Letter to the SEC | Apr 9, 2020 | — |
| UPLOAD | Letter from the SEC | Mar 30, 2020 | — |
| S-4 | Registration for a merger or exchange | Mar 20, 2020 | — |
| 8-K |
Current report
Other events
|
Mar 18, 2020 | Mar 18, 2020 |
| 10-K | Annual report | Feb 28, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Jan 29, 2020 | Jan 29, 2020 |
| 8-K |
Current report
Other events
|
Dec 16, 2019 | Dec 15, 2019 |
| 10-Q | Quarterly report | Nov 4, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Officer or director change
|
Nov 1, 2019 | Oct 29, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2019 | Oct 31, 2019 |
| 8-K |
Current report
Material agreement, New debt
|
Sep 27, 2019 | Sep 23, 2019 |
| 8-K |
Current report
Material agreement, Other events
|
Sep 9, 2019 | Sep 6, 2019 |
| 424B5 | Prospectus supplement | Sep 6, 2019 | — |
| FWP | Free writing prospectus | Sep 4, 2019 | — |
| 424B5 | Prospectus supplement | Sep 4, 2019 | — |
| 8-K |
Current report
Other events
|
Sep 4, 2019 | Sep 4, 2019 |
| 8-K/A | Amended current report | Aug 14, 2019 | Jul 26, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 14, 2019 | Aug 14, 2019 |
| 10-Q | Quarterly report | Aug 5, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, New debt, Unregistered share sale, Bylaw or fiscal year change, Other events
|
Aug 1, 2019 | Jul 26, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2019 | Aug 1, 2019 |
| 425 | Filing | Jul 22, 2019 | — |
| EFFECT | Filing | Jun 28, 2019 | — |
| 8-K |
Current report
Other events
|
Jun 28, 2019 | Jun 28, 2019 |
| 425 | 8-k | Jun 28, 2019 | — |
| 424B3 | Prospectus | Jun 28, 2019 | — |
| 425 | Filing | Jun 26, 2019 | — |
| S-4/A | Filing | Jun 24, 2019 | — |
| 425 | Filing | Jun 3, 2019 | — |
| S-4 | Registration for a merger or exchange | May 29, 2019 | — |
| 425 | Filing | May 21, 2019 | — |
| 425 | Filing | May 15, 2019 | — |
| 425 | Filing | May 9, 2019 | — |
| 10-Q | Quarterly report | May 9, 2019 | Mar 31, 2019 |
| 425 | Filing | May 8, 2019 | — |
| 425 | Filing | May 8, 2019 | — |
| 425 | Filing | May 8, 2019 | — |
| 8-K |
Current report
Results of operations
|
May 8, 2019 | May 8, 2019 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
May 8, 2019 | May 7, 2019 |
| 425 | Form 8-k | May 8, 2019 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 1, 2019 | Apr 1, 2019 |
| 424B3 | Prospectus | Mar 20, 2019 | — |
| EFFECT | Filing | Mar 18, 2019 | — |
| CORRESP | Letter to the SEC | Mar 13, 2019 | — |
| UPLOAD | Letter from the SEC | Mar 12, 2019 | — |
| S-3 | Shelf registration | Mar 8, 2019 | — |
| 10-K | Annual report | Feb 28, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2019 | Feb 7, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 4, 2018 | Dec 4, 2018 |
| 8-K |
Current report
Other events
|
Nov 15, 2018 | Nov 15, 2018 |
| 424B5 | Prospectus supplement | Nov 9, 2018 | — |
| FWP | Free writing prospectus | Nov 7, 2018 | — |
| 424B5 | Prospectus supplement | Nov 7, 2018 | — |
| 10-Q | Quarterly report | Nov 5, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2018 | Nov 1, 2018 |
| 8-K |
Current report
Officer or director change
|
Oct 3, 2018 | Oct 1, 2018 |
| 10-Q | Quarterly report | Aug 6, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations
|
Jul 26, 2018 | Jul 26, 2018 |
| 10-Q | Quarterly report | Apr 30, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 30, 2018 | Apr 30, 2018 |
| 8-K |
Current report
Officer or director change
|
Apr 26, 2018 | Apr 25, 2018 |
| 8-K |
Current report
Other events
|
Mar 13, 2018 | Mar 13, 2018 |
| 424B5 | Prospectus supplement | Mar 13, 2018 | — |
| S-8 | Employee stock plan registration | Mar 12, 2018 | — |
| 8-K |
Current report
Officer or director change
|
Mar 5, 2018 | Feb 28, 2018 |
| CT ORDER | Filing | Mar 5, 2018 | — |
| 10-K | Annual report | Feb 28, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Other events
|
Feb 8, 2018 | Feb 5, 2018 |
| 424B5 | Prospectus supplement | Feb 7, 2018 | — |
| FWP | Free writing prospectus | Feb 5, 2018 | — |
| 424B5 | Prospectus supplement | Feb 5, 2018 | — |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Pipe Lines (No Natural Gas) (SIC 4610)
- Listed as
- MPLX (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- Findlay, OH
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1552000
Other Pipe Lines (No Natural Gas) companies
- Enbridge Inc ENB
- HF Sinclair Corp DINO
- Plains All American Pipeline LP PAA
- South Bow Corp SOBO
- Plains GP Holdings LP PAGP
- Delek Logistics Partners, LP DKL
- Genesis Energy LP GEL
Source: SEC EDGAR filings. This is company-reported data, not investment advice.