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Which hedge funds own MPLX? MPLX LP, Q2 2026 13F holders

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9 of the hedge funds tracked by WhaleCreep disclosed a position in MPLX (MPLX LP) in their Q2 2026 13F filings, worth $388.3m in total. The largest holder by portfolio weight is Kayne Anderson Capital Advisors LP at 6.5% of its book. 1 manager opened a new position this quarter: Gsa Capital Partners LLP. 1 exited: Goldentree Asset Management LP.

9tracked managers holding
1opened this quarter
1exited this quarter

Who discovered MPLX first?

Earliest meaningful positions among the 4 tracked managers we observed opening MPLX since Q1 2013.

1 Hite Hedge Asset Management LLC First reported Q1 2013 · ≥1% from Q2 2015 High conviction 0.4%initial weight · $704.0k Exitedby Q4 2020 · held 22q –stock change

Weight of Hite Hedge Asset Management LLC's 13F book in MPLX, by quarter

0%5%10%Q1 2013 · 0.4% of book · $704.0kQ2 2013 · 0.2% of book · $495.0kQ4 2014 · 0.5% of book · $1.4mQ1 2015 · 0.3% of book · $1.0mQ2 2015 · 1.4% of book · $4.9mQ4 2015 · 0.5% of book · $1.1mQ1 2016 · 4.9% of book · $11.4mQ2 2016 · 0.4% of book · $906.0kQ3 2016 · 0.7% of book · $2.2mQ4 2016 · 1.6% of book · $6.3mQ1 2017 · 0.4% of book · $1.7mQ2 2017 · 0.4% of book · $1.2mQ3 2017 · 0.4% of book · $1.5mQ4 2017 · 1.7% of book · $9.8mQ1 2018 · 1.2% of book · $5.6mQ4 2018 · 1.4% of book · $7.0mQ2 2019 · 1.6% of book · $10.2mQ3 2019 · 1.2% of book · $5.9mQ4 2019 · 1.9% of book · $9.3mQ1 2020 · 6.9% of book · $21.6mQ2 2020 · 0.2% of book · $531.0kQ3 2020 · 0.8% of book · $2.5m2014201520162017201820192020
  • 6.9% peak weight, Q1 2020
  • $21.6m peak reported value
  • 22 quarters held, in 3 separate spells
  • 20q before the median tracked entry
9 managers already held MPLX when our coverage of them began

Kayne Anderson Capital Advisors LP (Q1 2026), RR Advisors, LLC (Q1 2026), Militia Capital Management LLC (Q1 2026), Appaloosa (Q1 2026), Fulcrum Asset Management LLP (Q1 2026), Citadel Advisors LLC (Q1 2026), Elequin Capital, LP (Q1 2026), Squarepoint Ops LLC (Q1 2026), Goldentree Asset Management LP (Q1 2026).

Their first filing on record already includes MPLX, so when they first bought it is unknown. They are not ranked above.

View discovery timeline
tracked universe expands →Split-adjusted price$50% of tracked managers holding0%5%New holders per 100 tracked managers05Q1 2013 · 1 of 39 tracked managers hold (2.6%) · 1 newQ2 2013 · 1 of 41 tracked managers hold (2.4%) · 0 newQ3 2013 · 0 of 43 tracked managers hold (0.0%) · 0 newQ4 2013 · 0 of 45 tracked managers hold (0.0%) · 0 newQ1 2014 · 0 of 45 tracked managers hold (0.0%) · 0 newQ2 2014 · 0 of 46 tracked managers hold (0.0%) · 0 newQ3 2014 · 0 of 46 tracked managers hold (0.0%) · 0 newQ4 2014 · 1 of 49 tracked managers hold (2.0%) · 0 newQ1 2015 · 1 of 49 tracked managers hold (2.0%) · 0 newQ2 2015 · 1 of 49 tracked managers hold (2.0%) · 0 newQ3 2015 · 0 of 49 tracked managers hold (0.0%) · 0 newQ4 2015 · 2 of 49 tracked managers hold (4.1%) · 1 newQ1 2016 · 2 of 49 tracked managers hold (4.1%) · 0 newQ2 2016 · 2 of 49 tracked managers hold (4.1%) · 0 newQ3 2016 · 2 of 49 tracked managers hold (4.1%) · 0 newQ4 2016 · 2 of 53 tracked managers hold (3.8%) · 0 newQ1 2017 · 2 of 53 tracked managers hold (3.8%) · 0 newQ2 2017 · 2 of 53 tracked managers hold (3.8%) · 0 newQ3 2017 · 1 of 53 tracked managers hold (1.9%) · 0 newQ4 2017 · 1 of 56 tracked managers hold (1.8%) · 0 newQ1 2018 · 1 of 56 tracked managers hold (1.8%) · 0 newQ2 2018 · 0 of 56 tracked managers hold (0.0%) · 0 newQ3 2018 · 0 of 56 tracked managers hold (0.0%) · 0 newQ4 2018 · 1 of 57 tracked managers hold (1.8%) · 0 newQ1 2019 · 0 of 57 tracked managers hold (0.0%) · 0 newQ2 2019 · 1 of 57 tracked managers hold (1.8%) · 0 newQ3 2019 · 1 of 57 tracked managers hold (1.8%) · 0 newQ4 2019 · 1 of 64 tracked managers hold (1.6%) · 0 newQ1 2020 · 1 of 65 tracked managers hold (1.5%) · 0 newQ2 2020 · 2 of 65 tracked managers hold (3.1%) · 1 newQ3 2020 · 2 of 65 tracked managers hold (3.1%) · 0 newQ4 2020 · 1 of 68 tracked managers hold (1.5%) · 0 newQ1 2021 · 0 of 67 tracked managers hold (0.0%) · 0 newQ2 2021 · 0 of 67 tracked managers hold (0.0%) · 0 newQ3 2021 · 0 of 68 tracked managers hold (0.0%) · 0 newQ4 2021 · 0 of 71 tracked managers hold (0.0%) · 0 newQ1 2022 · 0 of 71 tracked managers hold (0.0%) · 0 newQ2 2022 · 0 of 71 tracked managers hold (0.0%) · 0 newQ3 2022 · 0 of 71 tracked managers hold (0.0%) · 0 newQ4 2022 · 0 of 70 tracked managers hold (0.0%) · 0 newQ1 2023 · 0 of 70 tracked managers hold (0.0%) · 0 newQ2 2023 · 0 of 70 tracked managers hold (0.0%) · 0 newQ3 2023 · 0 of 70 tracked managers hold (0.0%) · 0 newQ4 2023 · 0 of 70 tracked managers hold (0.0%) · 0 newQ1 2024 · 0 of 70 tracked managers hold (0.0%) · 0 newQ2 2024 · 0 of 70 tracked managers hold (0.0%) · 0 newQ3 2024 · 0 of 70 tracked managers hold (0.0%) · 0 newQ4 2024 · 0 of 69 tracked managers hold (0.0%) · 0 newQ1 2025 · 0 of 68 tracked managers hold (0.0%) · 0 newQ2 2025 · 0 of 68 tracked managers hold (0.0%) · 0 newQ3 2025 · 0 of 68 tracked managers hold (0.0%) · 0 newQ4 2025 · 0 of 68 tracked managers hold (0.0%) · 0 newQ1 2026 · price $57 · 9 of 1200 tracked managers hold (0.8%) · 0 newQ2 2026 · price $56 · 9 of 1185 tracked managers hold (0.8%) · 1 new2014201620182020202220242026

Dots mark the ranked managers' first reported quarters. Price is the quarter-end price implied by 13F filings, split-adjusted, shown from Q1 2026 where the series is continuous. Coverage widened in Q1 2026 from about a hundred managers to over a thousand, so holders and new holders are shown relative to the managers filing each quarter.

How this is calculated

13F filings are quarterly snapshots of long US-listed equity positions. They do not show exact purchase dates, intra-quarter trading, short positions, most derivatives, or a manager's actual performance. "First reported" is the first quarter-end filing that shows the position.

A manager is ranked only if we observed it filing, without MPLX, within two quarters before its first position. Ranking is by the first quarter the position reached 1% of the manager's 13F book in a run of at least 2 filings, then by peak weight. "High conviction" means a peak weight of at least 5%.

Stock changes are the split-adjusted change in the quarter-end price implied by 13F filings, excluding dividends. They describe the stock over the period, not the return any manager earned. Phases are cut where the share of tracked managers holding MPLX passed one third and two thirds of its peak.

Which hedge funds hold MPLX? Current holders by portfolio weight

ManagerAs ofWeight of bookValueSharesΔ sharesAction
Kayne Anderson Capital Advisors LPQ2 2026 6.5%$330.3m5,862,925 -14% reduced
RR Advisors, LLCQ2 2026 3.5%$12.1m214,194 0% held
Militia Capital Management LLCQ2 2026 0.7%$3.8m67,000 0% held
AppaloosaQ2 2026 0.4%$28.3m502,460 0% held
Fulcrum Asset Management LLPQ2 2026 0.1%$902.4k16,052 0% held
Gsa Capital Partners LLPQ2 2026 0.1%$832.0k14,763 – new
Citadel Advisors LLCQ2 2026 0.0%$11.8m209,147 3887% added
Elequin Capital, LPQ2 2026 0.0%$30.1k534 28% added
Squarepoint Ops LLCQ2 2026 0.0%$354.9k6,300 0% held

Exited since the previous quarter

ManagerPrior weightPrior value
Goldentree Asset Management LP4.6%$19.7m

Held in a manager's last filing on record

These managers have not filed for the latest quarter; their last disclosure is dated.

ManagerLast filingWeight
ancora_advisorsQ2 20260.0%
brave_warrior_advisorsQ2 20263.9%

How has hedge fund ownership of MPLX changed?

QuarterManagers holdingCombined value
Q2 202611$567.6m
Q1 202611$641.5m
Q4 20252$239.0m
Q3 20252$223.3m
Q2 20252$220.4m
Q1 20252$233.7m
Q4 20242$211.6m
Q3 20242$197.2m
Q2 20242$180.5m
Q1 20242$125.8m
Q4 20232$733.6k
Q3 20232$532.7k
Q2 20232$508.3k
Q1 20232$112.9k
Q4 20221$98.0k
Q3 20221$164.0k

Counts every tracked manager that disclosed MPLX in that quarter's filing, including managers that have since stopped filing.