Question 1

How many shares of MPC does CULLEN/FROST BANKERS, INC. own?

Accepted Answer

As of 2026-Q2, CULLEN/FROST BANKERS, INC. holds 8,981 shares of MPC (MARATHON PETROLEUM CORP).

Question 2

What is CULLEN/FROST BANKERS, INC.'s MPC position worth?

Accepted Answer

As of 2026-Q2, CULLEN/FROST BANKERS, INC.'s MPC position is worth $2.3M.

Question 3

Is CULLEN/FROST BANKERS, INC. buying or selling MPC?

Accepted Answer

In 2026-Q2, CULLEN/FROST BANKERS, INC. decreased their MPC position (-8.1% change in shares).

Question 4

When did CULLEN/FROST BANKERS, INC. first buy MPC?

Accepted Answer

Based on available 13F filings, CULLEN/FROST BANKERS, INC. first reported a position in MPC in 2024-Q3. They have held the position across 30 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price
2026-Q2 Latest	Decreased	8,981	-8.1%	$2.3M	0.0%	$255.67
2026-Q1	Decreased	9,771	-17.0%	$2.4M	0.0%	$211.98
2025-Q4	Decreased	11,769	-4.5%	$1.9M	0.0%	$163.82
2025-Q3	Decreased	12,325	-4.9%	$2.4M	0.0%	$195.49
2025-Q2	Decreased	12,961	-6.6%	$2.2M	0.0%	$165.65
2025-Q1	Decreased	13,875	-13.8%	$2M	0.0%	$141.78
2024-Q4	Decreased	16,102	-12.6%	$2.2M	0.0%	$132.65
2024-Q3	Decreased	18,425	-69.9%	$3M	0.0%	$159.18