Seiren

Shareholders

Foreign ownership · FYE Mar 2025: 20.8%
Financial institutions: 38.6%
Other corporations: 13.7%
Individuals & others: 25.6%
Ten largest, combined: 47.6%
Shareholders: 5,768

Ownership mix 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
Financial institutions	%	36.3%	35.1%	36.6%	37.3%	36.3%	39.7%	38.6%
Securities firms	%	0.7%	0.2%	0.6%	0.6%	1.4%	1.0%	1.3%
Other corporations	%	14.8%	15.0%	15.0%	14.8%	14.5%	14.4%	13.7%
Foreign corporations	%	16.5%	17.2%	13.7%	13.9%	13.9%	14.2%	20.8%
Foreign individuals	%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Individuals & others	%	31.6%	32.5%	34.1%	33.4%	33.9%	30.7%	25.6%
Shareholders	holders	6,644	6,371	5,272	4,943	5,290	5,341	5,768

*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	%	16.5%	17.2%	13.7%	13.9%	13.9%	14.2%	20.8%
Change	pp	—	+0.7pp	-3.5pp	+0.2pp	0.0pp	+0.3pp	+6.6pp
Foreign corporations	%	16.5%	17.2%	13.7%	13.9%	13.9%	14.2%	20.8%
Foreign individuals	%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Foreign corporate holders	holders	157	164	163	170	180	173	177

*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	%	32.8%	35.2%	41.1%	39.7%	39.1%	42.4%	46.2%	47.0%	50.4%	47.6%
Change	pp	—	+2.4pp	+5.9pp	-1.4pp	-0.6pp	+3.3pp	+3.8pp	+0.8pp	+3.4pp	-2.8pp
Largest holder	%	5.1%	6.6%	9.2%	9.9%	8.7%	10.4%	11.4%	12.7%	15.5%	14.3%

*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
Financial institutions — holders	holders	46	48	37	32	31	28	29
Securities firms — holders	holders	37	28	26	27	40	31	32
Other corporations — holders	holders	165	165	150	145	148	158	148
Foreign corporations — holders	holders	157	164	163	170	180	173	177
Foreign individuals — holders	holders	2	2	2	1	3	3	8
Individuals & others — holders	holders	6,237	5,964	4,894	4,568	4,888	4,948	5,374
All holders	holders	6,644	6,371	5,272	4,943	5,290	5,341	5,768
Financial institutions — shares	units	234,745	226,544	235,892	240,552	234,299	256,548	249,125
Securities firms — shares	units	4,293	1,414	4,004	3,660	9,261	6,257	8,649
Other corporations — shares	units	95,789	97,105	96,992	95,858	93,775	92,906	88,546
Foreign corporations — shares	units	106,936	111,367	88,683	89,951	89,615	91,957	134,668
Foreign individuals — shares	units	2	2	2	1	3	8	13
Individuals & others — shares	units	204,382	209,715	220,572	216,121	219,171	198,440	165,098
All shares	units	646,147	646,147	646,145	646,143	646,124	646,116	646,099

*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

Seiren’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/3569/manifest.json	Resource index
GET	/api/3569/history.json	History overview
GET	/api/3569/timeline.json	Chronology
GET	/api/decisions.json	All management decisions (index)
GET	/api/3569/decisions.json	Management decisions (index)
GET	/api/3569/decisions/{slug}.json	One decision (full dossier)
GET	/api/3569/executives.json	Executives
GET	/api/3569/shareholders.json	Major shareholders
GET	/api/3569/financials.json	Financial statements
GET	/api/3569/financials-longterm.json	Long-term results
GET	/api/3569/segments.json	Business segments
GET	/api/3569/regions.json	Sales by region
GET	/api/3569/workforce.json	Workforce