Japan Steel Works

Shareholders

Foreign ownership · FYE Mar 2025: 32.6%
Financial institutions: 41.9%
Other corporations: 11.4%
Individuals & others: 12.1%
Ten largest, combined: 45.3%
Shareholders: 18,096

Ownership mix Government Financial institutions Securities firms Other corporations Foreign corporations Foreign individuals Individuals & others

Share of the company held by each class of owner, as filed each year (%). The seven classes add up to the whole company.

Ownership by holder class, every year on record (%), 2019–2025. Scroll sideways for earlier years.
Fiscal year	Unit	2019 ^*1 FYE Mar	2020 ^*1 FYE Mar	2021 ^*1 FYE Mar	2022 ^*1 FYE Mar	2023 ^*1 FYE Mar	2024 ^*1 FYE Mar	2025 ^*1 FYE Mar
Government	%	—	—	0.0%	—	—	—	—
Financial institutions	%	43.3%	43.7%	44.5%	49.8%	47.7%	40.2%	41.9%
Securities firms	%	2.7%	1.5%	1.9%	3.2%	3.1%	3.5%	2.0%
Other corporations	%	13.8%	13.5%	12.2%	11.5%	11.8%	11.7%	11.4%
Foreign corporations	%	25.5%	25.6%	28.6%	22.3%	22.4%	30.5%	32.5%
Foreign individuals	%	0.0%	0.0%	0.0%	0.0%	0.1%	0.0%	0.0%
Individuals & others	%	14.7%	15.6%	12.8%	13.2%	14.9%	14.1%	12.1%
Shareholders	holders	19,014	19,118	16,462	17,905	20,764	19,285	18,096

*1 Securities report (yuka shoken hokokusho) — status of shares by holder category, as filed

Foreign ownership Foreign holders, combined Foreign corporations Foreign individuals

How much of the company sits with holders outside Japan (%). Almost all of it is institutional: overseas individuals rarely hold Japanese stock directly.

Foreign holdings by fiscal year (%), with the year-on-year move in percentage points.
Fiscal year	Unit	2019 ^*1 FYE Mar	2020 ^*1 FYE Mar	2021 ^*1 FYE Mar	2022 ^*1 FYE Mar	2023 ^*1 FYE Mar	2024 ^*1 FYE Mar	2025 ^*1 FYE Mar
Foreign holders, combined	%	25.6%	25.6%	28.6%	22.3%	22.5%	30.6%	32.6%
Change	pp	—	0.0pp	+3.0pp	-6.3pp	+0.2pp	+8.1pp	+2.0pp
Foreign corporations	%	25.5%	25.6%	28.6%	22.3%	22.4%	30.5%	32.5%
Foreign individuals	%	0.0%	0.0%	0.0%	0.0%	0.1%	0.0%	0.0%
Foreign corporate holders	holders	294	269	263	253	259	294	286

*1 Securities report (yuka shoken hokokusho) — status of shares by holder category, as filed

Concentration Ten largest, combined Largest holder

How much of the company the ten largest shareholders hold between them (%). Japanese filings list trust banks and custodians under their own names, so a single line here often stands for many underlying investors.

Combined stake of the ten largest shareholders, and of the single largest, by fiscal year (%).
Fiscal year	Unit	2016 ^*1 FYE Mar	2017 ^*1 FYE Mar	2018 ^*1 FYE Mar	2019 ^*1 FYE Mar	2020 ^*1 FYE Mar	2021 ^*1 FYE Mar	2022 ^*1 FYE Mar	2023 ^*1 FYE Mar	2024 ^*1 FYE Mar	2025 ^*1 FYE Mar
Ten largest, combined	%	29.6%	32.7%	37.3%	37.2%	37.1%	40.1%	49.2%	50.7%	41.5%	45.3%
Change	pp	—	+3.1pp	+4.6pp	-0.1pp	-0.1pp	+3.0pp	+9.1pp	+1.5pp	-9.2pp	+3.8pp
Largest holder	%	6.2%	7.5%	9.9%	10.9%	11.6%	13.1%	20.4%	18.5%	16.8%	18.1%

*1 Securities report (yuka shoken hokokusho) — ten largest shareholders, as filed

Holders and shares by class

The counts behind the percentages: how many shareholders sit in each class, and how much stock they hold. Shares are in trading units (tan'i) as filed — one unit is usually 100 shares.

Shareholder counts and holdings by class, every year on record. Treasury stock and odd-lot holdings are excluded, so the classes may not sum exactly to the issued total.
Fiscal year	Unit	2019 ^*1 FYE Mar	2020 ^*1 FYE Mar	2021 ^*1 FYE Mar	2022 ^*1 FYE Mar	2023 ^*1 FYE Mar	2024 ^*1 FYE Mar	2025 ^*1 FYE Mar
Government — holders	holders	—	—	1	—	—	—	—
Financial institutions — holders	holders	62	56	49	49	47	50	56
Securities firms — holders	holders	54	43	45	54	60	48	52
Other corporations — holders	holders	319	309	293	285	320	298	316
Foreign corporations — holders	holders	294	269	263	253	259	294	286
Foreign individuals — holders	holders	18	23	21	15	47	37	45
Individuals & others — holders	holders	18,267	18,418	15,790	17,249	20,031	18,558	17,341
All holders	holders	19,014	19,118	16,462	17,905	20,764	19,285	18,096
Government — shares	units	—	—	3	—	—	—	—
Financial institutions — shares	units	321,197	324,432	330,355	369,722	354,140	298,526	311,455
Securities firms — shares	units	19,998	11,399	14,188	23,933	23,326	25,617	15,254
Other corporations — shares	units	102,440	100,499	90,589	85,577	87,373	86,785	84,919
Foreign corporations — shares	units	189,411	190,064	212,137	165,701	166,756	226,807	241,763
Foreign individuals — shares	units	130	145	110	83	344	202	154
Individuals & others — shares	units	108,864	115,767	95,250	97,786	110,967	105,087	89,512
All shares	units	742,040	742,306	742,632	742,802	742,906	743,024	743,057

*1 Securities report (yuka shoken hokokusho) — status of shares by holder category, as filed

日本語版 — the named list of major shareholders → The ten largest holders are filed under their registered Japanese names — trust-bank omnibus accounts and transliterated custodian names that have no English equivalent — so they are not reproduced here. The Japanese edition carries the full name-by-name table, year by year.

Figures are the ownership breakdown as filed in each year's securities report, at that fiscal year's record date. Treasury stock and odd-lot holdings are excluded from the class percentages, so a company that holds much of its own stock will show classes summing to slightly under the whole.

Read the company history → Financial history → 日本語版（詳細）— full shareholder data in Japanese →

Disclaimer

This page is provided for general information only and is not investment advice, nor a recommendation to buy or sell any security.
Figures are compiled independently and include our own estimates, approximations and machine-processed data; we make no warranty as to their accuracy or completeness.
Sources are primarily each company's securities reports and other public filings, but errors and omissions may remain.
Ownership changes continuously; a filed breakdown describes one record date, not the position today.
Company names, logos and other marks belong to their respective owners.

Data API

Japan Steel Works’s history, financials, executives and shareholders are published as static JSON — no key, plain GET. Full specification →

Method	Endpoint	Returns
GET	/api/companies.json	All companies
GET	/api/5631/manifest.json	Resource index
GET	/api/5631/history.json	History overview
GET	/api/5631/timeline.json	Chronology
GET	/api/decisions.json	All management decisions (index)
GET	/api/5631/decisions.json	Management decisions (index)
GET	/api/5631/decisions/{slug}.json	One decision (full dossier)
GET	/api/5631/executives.json	Executives
GET	/api/5631/shareholders.json	Major shareholders
GET	/api/5631/financials.json	Financial statements
GET	/api/5631/financials-longterm.json	Long-term results
GET	/api/5631/segments.json	Business segments
GET	/api/5631/regions.json	Sales by region
GET	/api/5631/workforce.json	Workforce