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 Q2	$475K	Sell	1,858 -5,143	-73%	-$1.26M	0.02%	335
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 $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 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

Ostrum Asset Management's MPC Position: Q2 2026 in Review

Ostrum Asset Management reduced its Marathon Petroleum (MPC) stake by 73% in Q2 2026, selling an estimated $1.26M and leaving 1,858 shares worth $475K. The position accounts for 0.02% of the portfolio, ranked #335.

Ostrum Asset Management first reported a position in MPC in Q1 2023 and has held it in 14 quarters since. The position peaked at $2.7M in Q1 2023. 1,948 funds tracked by Wall St. Rank hold MPC as of Q2 2026.

Ostrum Asset Management held 1,858 shares of Marathon Petroleum worth $475K as of Q2 2026.
Ostrum Asset Management sold 5,143 Marathon Petroleum shares in Q2 2026, an estimated $1.26M.
Marathon Petroleum made up 0.02% of Ostrum Asset Management's portfolio in Q2 2026, its #335 holding.
Ostrum Asset Management first reported a position in Marathon Petroleum in Q1 2023 and has held it in 14 quarters since.
Ostrum Asset Management's Marathon Petroleum position peaked at $2.7M in Q1 2023.
1,948 funds tracked by Wall St. Rank held Marathon Petroleum as of Q2 2026.

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