Question 1

Does Gateway Investment Advisers own MPC stock?

Accepted Answer

Yes. As of its Q3 2026 13F, Gateway Investment Advisers holds 10,811 shares of MPC (Marathon Petroleum), worth $4.3M.

Question 2

How many shares of MPC does Gateway Investment Advisers own?

Accepted Answer

As of its Q3 2026 13F, Gateway Investment Advisers holds 10,811 shares of MPC (Marathon Petroleum).

Question 3

What is Gateway Investment Advisers' MPC position worth?

Accepted Answer

As of its Q3 2026 13F, Gateway Investment Advisers' MPC position is worth $4.3M.

Question 4

Is Gateway Investment Advisers buying or selling MPC?

Accepted Answer

In Q3 2026, Gateway Investment Advisers increased its MPC position by 2,011 shares (+22.9%).

Question 5

When did Gateway Investment Advisers first buy MPC?

Accepted Answer

Gateway Investment Advisers already held MPC in its Q1 2019 13F, the earliest on record, and has listed it in 31 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q3 Latest	Increased	10,811	+22.9%	$4.3M	0.0%	$395.42	32
2026-Q2	Increased	8,800	+0.0%	$2.2M	0.0%	$254.97	26
2026-Q1	Decreased	8,799	-73.2%	$2.1M	0.0%	$242.59	0
2025-Q4	Decreased	32,876	-1.8%	$5.3M	0.0%	$160.76	0
2025-Q3	Increased	33,462	+2.1%	$6.4M	0.1%	$189.57	28
2025-Q2	Decreased	32,779	-11.0%	$5.4M	0.1%	$162.48	0
2025-Q1	Increased	36,833	+5.2%	$5.4M	0.1%	$141.70	28
2024-Q4	Decreased	35,003	-4.8%	$4.9M	0.1%	$134.90	0
2024-Q3	Decreased	36,767	-4.9%	$6M	0.1%	$156.64	0