Question 1

Does National Pension Service own MPC stock?

Accepted Answer

Yes. As of its Q2 2026 13F, National Pension Service holds 928,506 shares of MPC (Marathon Petroleum), worth $237.4M.

Question 2

How many shares of MPC does National Pension Service own?

Accepted Answer

As of its Q2 2026 13F, National Pension Service holds 928,506 shares of MPC (Marathon Petroleum).

Question 3

What is National Pension Service's MPC position worth?

Accepted Answer

As of its Q2 2026 13F, National Pension Service's MPC position is worth $237.4M.

Question 4

Is National Pension Service buying or selling MPC?

Accepted Answer

In Q2 2026, National Pension Service increased its MPC position by 5,626 shares (+0.6%).

Question 5

When did National Pension Service first buy MPC?

Accepted Answer

National Pension Service already held MPC in its Q4 2018 13F, the earliest on record, and has listed it in 31 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	928,506	+0.6%	$237.4M	0.2%	$254.97	37
2026-Q1	Increased	922,880	+4.2%	$225.3M	0.2%	$242.59	38
2025-Q4	Increased	885,426	+4.3%	$144M	0.1%	$160.76	38
2025-Q3	Increased	849,268	+1.7%	$163.7M	0.1%	$189.57	37
2025-Q2	Increased	834,960	+3.8%	$138.7M	0.1%	$162.48	38
2025-Q1	Increased	804,285	+0.2%	$117.2M	0.1%	$141.70	36
2024-Q4	Decreased	802,763	-17.9%	$112M	0.1%	$134.90	0
2024-Q3	Increased	977,250	+3.1%	$159.2M	0.2%	$156.64	37