Ostrum Asset Management’s Marathon Petroleum MPC Stock Holding History

Ostrum 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 Q1	$1.71M	Buy	7,001 +1,404	+25%	+$283K	0.1%	158
2025 Q4	$910K	Sell	5,597 -1,855	-25%	-$347K	0.04%	292
2025 Q3	$1.44M	Buy	7,452 +1,672	+29%	+$294K	0.06%	240
2025 Q2	$960K	Buy	5,780 +2,094	+57%	+$314K	0.05%	314
2025 Q1	$537K	Sell	3,686 -98	-3%	-$14.5K	0.03%	401
2024 Q4	$528K	Sell	3,784 -3,627	-49%	-$554K	0.05%	400
2024 Q3	$1.21M	Buy	7,411 +90	+1%	+$15.2K	0.1%	282
2024 Q2	$1.27M	Sell	7,321 -570	-7%	-$106K	0.11%	271
2024 Q1	$1.59M	Sell	7,891 -1,086	-12%	-$186K	0.13%	265
2023 Q4	$1.33M	Buy	8,977 +3,336	+59%	+$495K	0.12%	256
2023 Q3	$854K	Sell	5,641 -14,034	-71%	-$1.96M	0.08%	346
2023 Q2	$2.29M	Sell	19,675 -356	-2%	-$41.4K	0.19%	179
2023 Q1	$2.7M	Buy	+20,031	New	+$2.51M	0.24%	144

Other funds holding MPC

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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 Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return

Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Ostrum Asset Management's MPC Position: Q1 2026 in Review

Ostrum Asset Management increased its Marathon Petroleum (MPC) stake by 25% in Q1 2026, buying an estimated $283K and bringing the position to 7,001 shares worth $1.71M. The position accounts for 0.1% of the portfolio, ranked #158.

Ostrum Asset Management first reported a position in MPC in Q1 2023 and has held it in 13 quarters since. The position peaked at $2.7M in Q1 2023. 1,882 funds tracked by Wall St. Rank hold MPC as of Q1 2026.

Ostrum Asset Management held 7,001 shares of Marathon Petroleum worth $1.71M as of Q1 2026.
Ostrum Asset Management bought 1,404 Marathon Petroleum shares in Q1 2026, an estimated $283K.
Marathon Petroleum made up 0.1% of Ostrum Asset Management's portfolio in Q1 2026, its #158 holding.
Ostrum Asset Management first reported a position in Marathon Petroleum in Q1 2023 and has held it in 13 quarters since.
Ostrum Asset Management's Marathon Petroleum position peaked at $2.7M in Q1 2023.
1,882 funds tracked by Wall St. Rank held Marathon Petroleum as of Q1 2026.

Based on Ostrum Asset Management's 13F filing for Q1 2026, filed 14 May 2026.