Niterra (NGK Spark Plug)

Shareholders

Foreign ownership · FYE Mar 2025: 24.5%
Financial institutions: 45.7%
Other corporations: 6.5%
Individuals & others: 19.5%
Ten largest, combined: 45.2%
Shareholders: 114,129

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%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Financial institutions	%	49.4%	51.6%	49.0%	48.3%	43.3%	44.9%	45.7%
Securities firms	%	1.3%	2.3%	2.9%	4.4%	3.5%	4.3%	3.8%
Other corporations	%	6.7%	7.0%	6.8%	6.7%	7.2%	6.5%	6.5%
Foreign corporations	%	33.5%	28.9%	30.8%	25.8%	19.4%	22.5%	24.5%
Foreign individuals	%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Individuals & others	%	9.0%	10.1%	10.5%	14.8%	26.6%	21.7%	19.5%
Shareholders	holders	15,235	17,484	19,342	44,810	116,696	116,458	114,129

*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	%	33.5%	29.0%	30.8%	25.8%	19.4%	22.5%	24.5%
Change	pp	—	-4.5pp	+1.8pp	-5.0pp	-6.4pp	+3.1pp	+2.0pp
Foreign corporations	%	33.5%	28.9%	30.8%	25.8%	19.4%	22.5%	24.5%
Foreign individuals	%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Foreign corporate holders	holders	565	549	615	384	415	422	405

*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	%	41.5%	38.6%	40.9%	40.9%	41.9%	40.9%	47.2%	43.0%	46.9%	45.2%
Change	pp	—	-2.9pp	+2.3pp	0.0pp	+1.0pp	-1.0pp	+6.3pp	-4.2pp	+3.9pp	-1.7pp
Largest holder	%	7.5%	7.5%	8.0%	8.1%	8.2%	8.2%	14.7%	12.9%	13.8%	13.0%

*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	1	1	1	1	1	1
Financial institutions — holders	holders	76	81	81	80	91	82	84
Securities firms — holders	holders	41	41	45	48	60	45	44
Other corporations — holders	holders	248	266	273	399	820	762	711
Foreign corporations — holders	holders	565	549	615	384	415	422	405
Foreign individuals — holders	holders	9	15	18	47	115	157	157
Individuals & others — holders	holders	14,295	16,531	18,309	43,851	115,194	114,989	112,727
All holders	holders	15,235	17,484	19,342	44,810	116,696	116,458	114,129
Government — shares	units	141	141	141	141	141	141	141
Financial institutions — shares	units	1,032,228	1,053,305	999,696	985,102	881,230	914,796	907,217
Securities firms — shares	units	27,793	47,277	58,725	90,669	72,388	88,610	76,237
Other corporations — shares	units	139,602	143,735	139,301	135,576	147,519	133,355	128,809
Foreign corporations — shares	units	699,777	590,681	629,023	525,870	394,469	457,862	487,035
Foreign individuals — shares	units	60	67	66	233	353	248	267
Individuals & others — shares	units	188,232	205,272	213,522	302,321	541,455	441,487	387,127
All shares	units	2,087,833	2,040,478	2,040,474	2,039,912	2,037,555	2,036,499	1,986,833

*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

Niterra (NGK Spark Plug)’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/5334/manifest.json	Resource index
GET	/api/5334/history.json	History overview
GET	/api/5334/timeline.json	Chronology
GET	/api/decisions.json	All management decisions (index)
GET	/api/5334/decisions.json	Management decisions (index)
GET	/api/5334/decisions/{slug}.json	One decision (full dossier)
GET	/api/5334/executives.json	Executives
GET	/api/5334/shareholders.json	Major shareholders
GET	/api/5334/financials.json	Financial statements
GET	/api/5334/financials-longterm.json	Long-term results
GET	/api/5334/segments.json	Business segments
GET	/api/5334/regions.json	Sales by region
GET	/api/5334/workforce.json	Workforce