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Rossby Financial’s Marathon Petroleum MPC Stock Holding History

Rossby Financial’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
2026
Q1 		$41.9K Buy
176
+92
+110% +$18.6K 0.01% 791
2025
Q4 		$13.7K Hold
84
– – ﹤0.01% 845
2025
Q3 		$16.2K Hold
84
– – 0.01% 756
2025
Q2 		$14K Buy
84
+24
+40% +$3.6K 0.01% 721
2025
Q1 		$8.25K Buy
+60
New +$8.88K ﹤0.01% 750

Other funds holding MPC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Rossby Financial's MPC Position: Q1 2026 in Review

Rossby Financial increased its Marathon Petroleum (MPC) stake by 110% in Q1 2026, buying an estimated $18.6K and bringing the position to 176 shares worth $41.9K. The position accounts for 0.01% of the portfolio, ranked #791.

Rossby Financial first reported a position in MPC in Q1 2025 and has held it in 5 quarters since. 1,882 funds tracked by Wall St. Rank hold MPC as of Q1 2026.

  • Rossby Financial held 176 shares of Marathon Petroleum worth $41.9K as of Q1 2026.
  • Rossby Financial bought 92 Marathon Petroleum shares in Q1 2026, an estimated $18.6K.
  • Marathon Petroleum made up 0.01% of Rossby Financial's portfolio in Q1 2026, its #791 holding.
  • Rossby Financial first reported a position in Marathon Petroleum in Q1 2025 and has held it in 5 quarters since.
  • 1,882 funds tracked by Wall St. Rank held Marathon Petroleum as of Q1 2026.

Based on Rossby Financial's 13F filing for Q1 2026, filed 11 May 2026.