CONNING INC.

Position in MPC — Marathon Petroleum Corp

CIK 801051 HARTFORD, CT

Position in MPC

as of Jun 30, 2026 · filed Jul 30, 2026 Compact

Position Value

$361,261

+$16,235 QoQ

Shares Held

1,413

0.0% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#1,291

of 1,926 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Energy · as of Jun 30, 2026

CONNING INC. holds $37,035,708 across 3 Oil & Gas Refining & Marketing names. MPC ranks #2 (1.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLO	Valero Energy Corp/Tx	139,571	$36,349,871
2	MPC	Marathon Petroleum Corp This page	1,413	$361,261
3	PSX	Phillips 66	1,920	$324,576

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$361,261	1,413	0.0%	Shares	Sole	2026-07-30
2026-03-31	$345,026	1,413	-17.3%	Shares	Sole	2026-04-30
2025-12-31	$277,772	1,708	-33.3%	Shares	Sole	2026-02-05
2025-09-30	$493,799	2,562	0.0%	Shares	Sole	2025-10-28
2025-06-30	$425,573	2,562	-3.8%	Shares	Sole	2025-07-24
2025-03-31	$387,826	2,662	-14.6%	Shares	Sole	2025-04-29
2024-12-31	$434,682	3,116	-19.7%	Shares	Sole	2025-01-28
2024-09-30	$632,416	3,882	-0.9%	Shares	Sole	2024-10-29
2024-06-30	$679,521	3,917	-0.1%	Shares	Sole	2024-07-26
2024-03-31	$790,283	3,922	-2.5%	Shares	Sole	2024-04-26
2023-12-31	$596,703	4,022	-0.6%	Shares	Sole	2024-01-30
2023-09-30	$612,472	4,047	+1.5%	Shares	Sole	2023-10-26
2023-06-30	$464,884	3,987	-28.7%	Shares	Sole	2023-07-21
2023-03-31	$753,834	5,591	-14.9%	Shares	Sole	2023-04-27
2022-12-31	$764,915	6,572	+2.9%	Shares	Sole	2023-02-08
2022-09-30	$634,321	6,386	-12.7%	Shares	Sole	2022-10-31
2022-06-30	$601,612	7,318	-0.7%	Shares	Sole	2022-07-20
2022-03-31	$629,793	7,366	+13.5%	Shares	Sole	2022-05-02
2021-12-31	$415,359	6,491	-13.5%	Shares	Sole	2022-01-27
2021-09-30	$463,636	7,501	-6.1%	Shares	Sole	2021-11-05
2021-06-30	$482,816	7,991	-8.8%	Shares	Sole	2021-07-29
2021-03-31	$468,465	8,758	-7.5%	Shares	Sole	2021-04-23
2020-12-31	$391,596	9,468	+17.2%	Shares	Sole	2021-01-28
2020-09-30	$236,979	8,077	+2.8%	Shares	Sole	2020-10-21
2020-06-30	$293,694	7,857	-19.3%	Shares	Sole	2020-08-07
2020-03-31	$229,940	9,735	—	Shares	Sole	2020-04-29
No filing history on record for this holder in this stock.