Share ownership Idemitsu Kosan Co.,Ltd.

5019

JP3142500002

Oil & Gas Refining and Marketing

Market Closed - Japan Exchange Other stock markets 14:30:00 13/01/2026 HKT			5-day change	1st Jan Change
1,241.00 ^JPY	+2.43%		+5.21%	+4.90%

01-07	Japan Refiners See Little Scope for Venezuelan Crude	MT
12-25	Japan's Cosmo Oil restarts Sakai CDU after unplanned shutdown	RE

Share class: Idemitsu Kosan Co.,Ltd.

	Vote	Quantity	Free-Float	Company-owned shares	Total Float
Stock A	0	1,392,642,290	927,936,335 ( 66.63 %)	84,338,020 ( 6.056 %)	66.63 %

Major shareholders: Idemitsu Kosan Co.,Ltd.

Name	Equities	%	Valuation
ARAMCO 8.968 %	115,579,000	8.968 %	875 M ¥
Nissho Kosan KK 8.498 %	109,520,390	8.498 %	829 M ¥
Idemitsu Museum of Arts 7.912 %	101,962,000	7.912 %	772 M ¥
IDEMITSU KOSAN CO.,LTD. 4.732 %	60,986,880	4.732 %	461 M ¥
Nomura Asset Management Co., Ltd. 4.602 %	59,308,215	4.602 %	449 M ¥
Amova Asset Management Co., Ltd. 2.012 %	25,932,500	2.012 %	196 M ¥
Showa Kosan KK 1.93 %	24,872,000	1.93 %	188 M ¥
Idemitsu Kosan Employee Stock Ownership Plan 1.837 %	23,674,030	1.837 %	179 M ¥
Zen KK /Chuo/ 1.382 %	17,807,169	1.382 %	135 M ¥
En KK /Chuo/ 1.365 %	17,591,841	1.365 %	133 M ¥
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Breakdown by shareholder type

Other	23.9%
Saudi Arabian Oil Co.	8.97%
Institutional	7.32%
Idemitsu Kosan Co., Ltd.	4.73%
Sumitomo Mitsui Trust Group, Inc.	0.8%
Individuals	0.72%
Tokio Marine Holdings, Inc.	0.28%
ANA HOLDINGS INC.	0.13%
Tosoh Corp.	0.11%
ZEON Corp.	0.11%
The Chiba Bank, Ltd.	0.08%
The Yokohama Rubber Co., Ltd.	0.07%
Bridgestone Corp.	0.07%
Fukuoka Financial Group, Inc.	0.05%
Kyushu Financial Group, Inc.	0.04%
San-in Godo Bank Ltd.	0.04%
Nanto Bank Ltd.	0.04%
Gunma Bank, Ltd.	0.04%
The Chiba Kogyo Bank Ltd.	0.04%
North Pacific Bank, Ltd.	0.04%
Iino Kaiun Kaisha, Ltd.	0.04%
NS United Kaiun Kaisha, Ltd.	0.04%
Air Water, Inc.	0.04%
Sankyu, Inc.	0.02%
Rinko Corp.	0.02%
SAN-AI OBBLI Co., Ltd.	0.02%
Keiyo Gas Co., Ltd.	0.02%
Okumura Corp.	0.02%
Kinden Corp.	0.02%
JGC Holdings Corp.	0.02%
SINANEN Holdings Co., Ltd.	0.02%
Namura Shipbuilding Co., Ltd.	0.01%
Hirogin Holdings, Inc.	0.01%
Sala Corp.	0.01%
Meisei Industrial Co., Ltd.	0.01%
Unknown	52.1%

Based on 1000 largest holdings

Geographical origin of shareholders

Japan	37.7%
Saudi Arabia	8.97%
Individuals	0.72%
Sweden	0.17%
United States	0.17%
United Kingdom	0.06%
Ireland	0.03%
Luxembourg	0.02%
Denmark	0.01%
France	0.01%
Italy	0.01%
Canada	0.01%
Finland	0.01%

Based on 1000 largest holdings

Idemitsu Kosan Co Ltd is Japan-based company primarily engaged in fossil fuel-related businesses. The Company operates five business segments. The Fuel Oil segment is engaged in the production, sales, import & export, and trading of refined petroleum products. The Basic Chemicals Segment is engaged in the production and sale of olefins and aromatics products. The High Functional Materials segment is engaged in lubricants, functional chemicals, electronic materials, functional pavement materials, and agribio products. The Power & Renewable Energy segment is engaged in power generation (includes thermal, solar, wind), power sales, and solar cell operations. The Resources segment is engaged in exploration, development, production, and sales of energy resources such as crude oil, natural gas, and coal. The Company also conducts insurance and intra-group service businesses.

Employees

13,814

Sector

Oil & Gas Refining and Marketing

Calendar

02-10 - Q3 2025 Earnings Release

More about the company