Advantest

Shareholders

Foreign ownership · FYE Mar 2025: 39.5%
Financial institutions: 45.3%
Other corporations: 1.2%
Individuals & others: 11.0%
Ten largest, combined: 58.4%
Shareholders: 75,536

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	%	49.4%	51.4%	51.7%	48.7%	50.4%	45.5%	45.3%
Securities firms	%	7.0%	4.4%	3.1%	3.5%	3.4%	2.8%	3.1%
Other corporations	%	1.3%	0.8%	0.7%	0.8%	0.7%	0.8%	1.2%
Foreign corporations	%	31.5%	34.5%	36.5%	35.8%	35.6%	39.7%	39.5%
Foreign individuals	%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Individuals & others	%	10.8%	8.9%	7.9%	11.2%	9.9%	11.2%	11.0%
Shareholders	holders	31,316	31,584	27,518	28,846	25,125	76,039	75,536

*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	%	31.5%	34.5%	36.5%	35.9%	35.6%	39.7%	39.5%
Change	pp	—	+3.0pp	+2.0pp	-0.6pp	-0.3pp	+4.1pp	-0.2pp
Foreign corporations	%	31.5%	34.5%	36.5%	35.8%	35.6%	39.7%	39.5%
Foreign individuals	%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Foreign corporate holders	holders	415	727	806	833	832	998	1,074

*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	%	46.0%	50.0%	50.0%	49.9%	52.7%	51.7%	56.6%	58.4%	57.4%	58.4%
Change	pp	—	+4.0pp	0.0pp	-0.1pp	+2.8pp	-1.0pp	+4.9pp	+1.8pp	-1.0pp	+1.0pp
Largest holder	%	12.8%	19.9%	24.5%	24.7%	26.3%	27.3%	33.1%	33.3%	30.2%	31.0%

*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	63	67	90	89	67	75	78
Securities firms — holders	holders	58	66	58	60	32	63	65
Other corporations — holders	holders	256	304	276	305	266	784	742
Foreign corporations — holders	holders	415	727	806	833	832	998	1,074
Foreign individuals — holders	holders	28	34	30	43	35	177	311
Individuals & others — holders	holders	30,496	30,386	26,257	27,516	23,893	73,942	73,266
All holders	holders	31,316	31,584	27,518	28,846	25,125	76,039	75,536
Government — shares	units	—	—	2	—	—	—	—
Financial institutions — shares	units	986,111	1,026,001	1,031,865	970,691	964,676	3,481,571	3,469,946
Securities firms — shares	units	139,721	87,403	62,334	70,668	64,415	216,835	234,596
Other corporations — shares	units	25,024	16,799	14,792	15,066	13,710	62,483	88,830
Foreign corporations — shares	units	629,009	687,483	728,045	714,822	680,998	3,038,027	3,022,803
Foreign individuals — shares	units	140	151	106	134	115	838	1,170
Individuals & others — shares	units	214,671	176,770	157,424	222,882	190,323	858,316	840,391
All shares	units	1,994,676	1,994,607	1,994,568	1,994,263	1,914,237	7,658,070	7,657,736

*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

Advantest’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/6857/manifest.json	Resource index
GET	/api/6857/history.json	History overview
GET	/api/6857/timeline.json	Chronology
GET	/api/decisions.json	All management decisions (index)
GET	/api/6857/decisions.json	Management decisions (index)
GET	/api/6857/decisions/{slug}.json	One decision (full dossier)
GET	/api/6857/executives.json	Executives
GET	/api/6857/shareholders.json	Major shareholders
GET	/api/6857/financials.json	Financial statements
GET	/api/6857/financials-longterm.json	Long-term results
GET	/api/6857/segments.json	Business segments
GET	/api/6857/regions.json	Sales by region
GET	/api/6857/workforce.json	Workforce