Picton Mahoney Asset Management’s Marathon Petroleum MPC Stock Holding History

Picton Mahoney Asset Management’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 Q2	$492K	Buy	+1,924	New	+$472K	﹤0.01%	780
2026 Q1	–	Sell	-2,060	Closed	-$335K	–	1354
2025 Q4	$335K	Buy	+2,060	New	+$385K	﹤0.01%	777
2014 Q2	–	Sell	-301,800	Closed	-$13.1M	–	340
2014 Q1	$13.1M	Sell	301,800 -9,400	-3%	-$412K	0.76%	42
2013 Q4	$14.3M	Buy	+311,200	New	+$12M	0.83%	36

Other funds holding MPC

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Picton Mahoney Asset Management's MPC Position: Q2 2026 in Review

Picton Mahoney Asset Management opened a new position in Marathon Petroleum (MPC) in Q2 2026: 1,924 shares worth $492K. The stake represents ﹤0.01% of the portfolio and ranks #780 among its holdings. This is a return to the name: Picton Mahoney Asset Management previously reported a position in MPC as recently as Q4 2025.

Picton Mahoney Asset Management first reported a position in MPC in Q4 2013 and has held it in 4 quarters since. The position peaked at $14.3M in Q4 2013. 1,952 funds tracked by Wall St. Rank hold MPC as of Q2 2026.

Picton Mahoney Asset Management held 1,924 shares of Marathon Petroleum worth $492K as of Q2 2026.
Marathon Petroleum was a new Picton Mahoney Asset Management position in Q2 2026.
Marathon Petroleum made up ﹤0.01% of Picton Mahoney Asset Management's portfolio in Q2 2026, its #780 holding.
Picton Mahoney Asset Management first reported a position in Marathon Petroleum in Q4 2013 and has held it in 4 quarters since.
Picton Mahoney Asset Management's Marathon Petroleum position peaked at $14.3M in Q4 2013.
1,952 funds tracked by Wall St. Rank held Marathon Petroleum as of Q2 2026.

Based on Picton Mahoney Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.