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Ken Griffin's MPLX Lp (MPLX) position

Yes: as of Q1 2026, Ken Griffin holds 5K shares of MPLX worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was reduced by 97.8%. First disclosed Q2 2021.
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Current value
an amount we cannot price
Shares held
5K
% of portfolio
0.0%
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

MPLX price vs Griffin's position

Dates
$56$56.5$57$57.5← Earlier —12 purchases, 6 sells
Average closing price · filing quarter
Price range · filing quarter

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −231K −97.8% 5K May 15, 2026
Q4 2025 New +236K 236K Feb 17, 2026
Q2 2025 Reduced −286K −56.9% 216K Aug 14, 2025
Q1 2025 Reduced −163K −24.5% 502K May 15, 2025
Q4 2024 Added +648K +3,874.7% 665K Feb 14, 2025
Q3 2024 Added +14K +625.7% 17K Nov 14, 2024
Q2 2024 Reduced −917K −99.7% 2K Aug 14, 2024
Q1 2024 Added +582K +172.5% 919K May 15, 2024
Q4 2023 Added +17K +5.4% 337K Feb 14, 2024
Q3 2023 Added +192K +150.1% 320K Nov 14, 2023
Q2 2023 Added +55K +74.3% 128K Aug 14, 2023
Q1 2023 Reduced −122K −62.5% 73K May 15, 2023
Q4 2022 Added +139K +243.7% 196K Feb 14, 2023
Q3 2022 New +57K 57K Nov 14, 2022
Q1 2022 Added +54K +62.5% 141K May 16, 2022
Q4 2021 Reduced −70K −44.6% 87K Feb 14, 2022
Q3 2021 Added +101K +181.5% 157K Nov 15, 2021
Q2 2021 New +56K 56K Aug 16, 2021
Data through Q1 2026 · filed May 15, 2026
18 grouped rows from 18 quarters

More Griffin positions

Common questions

Does Ken Griffin own MPLX?

Yes. As of Q1 2026, Ken Griffin disclosed 5K shares of MPLX, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy MPLX?

Ken Griffin first disclosed a MPLX position in Q2 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell MPLX?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in MPLX. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of MPLX does Ken Griffin own?

Ken Griffin disclosed 5K shares of MPLX as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for MPLX?

Ken Griffin began building the MPLX position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.