All APIsexpand_more

Find companies by shareholder name

GET/stable/shareholder-search10 tokens per callBusiness+

Finds every company where a given investor appears as a major shareholder, using the latest annual securities report of each company. The holder name is a partial match of at least 3 characters. The ownership ratio is a 0–1 decimal (0.128 = 12.8%).

What you can do with this API

check_circleList companies where a particular trust bank or fund is a major holder
check_circleFind listed companies held by a parent company or founding family
check_circleSee the holding trends of an institutional investor

Example URL

https://api.zenithcode.net/stable/shareholder-search?name=日本マスタートラスト&limit=50

Shown without percent-encoding for readability. Non-ASCII values are encoded automatically when sent.

Parameters

Parameter	Required	Description	Example
`name` string	Required	Shareholder name (partial match, at least 3 characters). Use the Japanese name as filed	`日本マスタートラスト`
`limit` number	Optional	Maximum number of rows to return (default 50, max 100)	`50`

Try it

Run it with your own parameters and check the response as a table, JSON or CSV. Sign-in required; each run uses 10 tokens.

travel_exploreTry in the API Viewer

Response example (real data)

lock

Live response examples are shown to signed-in users only (they include exchange data such as stock prices). Sign in to view

Response fields

`symbol`	string
`companyNameJa`	string
`companyNameEn`	string
`holderName`	string
`ratio`持株比率。0〜1 の小数（0.128 = 12.8%）	number	持株比率。0〜1 の小数（0.128 = 12.8%）
`shares`	number
`fiscalPeriod`	string
`source`	string
`docId`	string
`sourceUrl`	string

Related APIs

Major shareholders (top 10)

/stable/major-shareholders

Large holders (over 5%)Business+

/stable/large-holders

Shareholding by shareholder category

/stable/shareholder-categories

FAQ

Are holders below 5% included?expand_more

Only holders who appear in a company's top 10 shareholders are covered. Smaller holders outside the top 10 do not appear.

How many tokens does one call use?expand_more

10 tokens per call, regardless of how many rows come back. Your monthly allowance depends on your plan.

Do I need an account to try it?expand_more

Use the API Viewer to run it with your own parameters. Sign up for free and sign in (no credit card). Each run uses this API's tokens.

Can I get CSV instead of JSON?expand_more

Add format=csv to the URL to get CSV, ready for spreadsheets or pandas.

Can I get labels in English?expand_more

With neither lang nor Accept-Language, labels such as sector names are returned in English; add lang=ja or send Accept-Language: ja for Japanese. Company and sector names are always returned in both languages as nameJa / nameEn and sectorJa / sectorEn. Field names are the same in both languages.