BlackRock
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BlackRock’s Marathon Petroleum MPC Stock Holding History

BlackRock’s Portfolio MPC Stock Details MPC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2022
Q2 		– Sell
-400,000
Closed -$34.2M – 5930
2022
Q1 		$34.2M Buy
+400,000
New +$30.4M ﹤0.01% 2816
2020
Q2 		– Sell
-1,660,400
Closed -$39.2M – 5085
2020
Q1 		$39.2M Buy
1,660,400
+726,400
+78% +$33.5M ﹤0.01% 2207
2019
Q4 		$56.3M Buy
+934,000
New +$58.4M ﹤0.01% 2293

Other funds holding MPC

Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $375B AUM 21.05% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $111B AUM 30.48% 1-Year Est. Return

BlackRock's MPC Position: Q3 2026 in Review

BlackRock increased its Marathon Petroleum (MPC) stake by 4% in Q3 2026, buying an estimated $360M and bringing the position to 27,048,327 shares worth $10.7B. The position accounts for 0.16% of the portfolio, ranked #97.

BlackRock first reported a position in MPC in Q2 2013 and has held it in 54 quarters since. 1,972 funds tracked by Wall St. Rank hold MPC as of Q3 2026.

  • BlackRock held 27,048,327 shares of Marathon Petroleum worth $10.7B as of Q3 2026.
  • BlackRock bought 1,042,310 Marathon Petroleum shares in Q3 2026, an estimated $360M.
  • Marathon Petroleum made up 0.16% of BlackRock's portfolio in Q3 2026, its #97 holding.
  • BlackRock first reported a position in Marathon Petroleum in Q2 2013 and has held it in 54 quarters since.
  • 1,972 funds tracked by Wall St. Rank held Marathon Petroleum as of Q3 2026.

Based on BlackRock's 13F filing for Q3 2026, filed 13 Nov 2026.