Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s Marathon Petroleum MPC Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’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 		$6.53M Buy
25,533
+1,033
+4% +$254K 0.01% 297
2026
Q1 		$5.98M Buy
24,500
+18,528
+310% +$3.74M 0.02% 295
2025
Q4 		$971K Buy
5,972
+628
+12% +$117K ﹤0.01% 518
2025
Q3 		$1.03M Sell
5,344
-1,422
-21% -$250K ﹤0.01% 482
2025
Q2 		$1.12M Buy
+6,766
New +$1.01M ﹤0.01% 464
2024
Q2 		– Sell
-77,304
Closed -$15.6M – 562
2024
Q1 		$15.6M Sell
77,304
-36,225
-32% -$6.19M 0.06% 221
2023
Q4 		$16.8M Sell
113,529
-53,469
-32% -$7.94M 0.07% 192
2023
Q3 		$25.3M Sell
166,998
-5,979
-3% -$833K 0.12% 152
2023
Q2 		$20.2M Buy
172,977
+144,577
+509% +$16.8M 0.09% 181
2023
Q1 		$3.83M Buy
28,400
+16,700
+143% +$2.09M 0.02% 354
2022
Q4 		$1.36M Buy
11,700
+3,900
+50% +$444K 0.01% 478
2022
Q3 		$775K Buy
+7,800
New +$730K ﹤0.01% 530
2019
Q2 		– Sell
-53,400
Closed -$3.2M – 751
2019
Q1 		$3.2M Buy
53,400
+46,500
+674% +$2.93M 0.02% 345
2018
Q4 		$407K Hold
6,900
– – ﹤0.01% 460
2018
Q3 		$552K Sell
6,900
-111,523
-94% -$8.82M ﹤0.01% 433
2018
Q2 		$8.31M Sell
118,423
-124,377
-51% -$9.5M 0.06% 172
2018
Q1 		$17.8M Buy
242,800
+100
+0% +$6.88K 0.11% 111
2017
Q4 		$16M Sell
242,700
-1,200
-0.5% -$73.4K 0.09% 125
2017
Q3 		$13.7M Buy
243,900
+7,800
+3% +$418K 0.08% 142
2017
Q2 		$12.4M Buy
236,100
+186,100
+372% +$9.61M 0.07% 165
2017
Q1 		$2.53M Buy
50,000
+42,900
+604% +$2.14M 0.01% 303
2016
Q4 		$357K Sell
7,100
-5,300
-43% -$241K ﹤0.01% 435
2016
Q3 		$503K Sell
12,400
-85,100
-87% -$3.45M ﹤0.01% 396
2016
Q2 		$3.7M Buy
97,500
+44,700
+85% +$1.64M 0.02% 321
2016
Q1 		$1.96M Buy
+52,800
New +$2.01M 0.01% 370
2014
Q2 		– Sell
-142,500
Closed -$6.2M – 536
2014
Q1 		$6.2M Sell
142,500
-353,872
-71% -$15.5M 0.02% 258
2013
Q4 		$22.8M Sell
496,372
-64,544
-12% -$2.48M 0.06% 134
2013
Q3 		$18M Sell
560,916
-35,218
-6% -$1.24M 0.05% 156
2013
Q2 		$21.2M Buy
+596,134
New +$23.8M 0.06% 129

Other funds holding MPC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s MPC Position: Q2 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) increased its Marathon Petroleum (MPC) stake by 4.2% in Q2 2026, buying an estimated $254K and bringing the position to 25,533 shares worth $6.53M. The position accounts for 0.01% of the portfolio, ranked #297.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in MPC in Q2 2013 and has held it in 29 quarters since. The position peaked at $25.3M in Q3 2023. 1,948 funds tracked by Wall St. Rank hold MPC as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 25,533 shares of Marathon Petroleum worth $6.53M as of Q2 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) bought 1,033 Marathon Petroleum shares in Q2 2026, an estimated $254K.
  • Marathon Petroleum made up 0.01% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q2 2026, its #297 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Marathon Petroleum in Q2 2013 and has held it in 29 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Marathon Petroleum position peaked at $25.3M in Q3 2023.
  • 1,948 funds tracked by Wall St. Rank held Marathon Petroleum as of Q2 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q2 2026, filed 13 Aug 2026.