Ownership

GET /v1/companies/{id}/ownership

The beneficial owners that reported a large stake in a company on Schedule 13D or 13G, newest filing first. Each record is one reporting owner on one filing.

curl -H "X-API-Key: $BELFORT_API_KEY" \
  "https://belfort-data-api.vercel.app/v1/companies/AAPL/ownership?form=SCHEDULE%2013G"

Parameters

Parameter	Values	Default
form	SCHEDULE 13D, SCHEDULE 13G, SCHEDULE 13D/A or SCHEDULE 13G/A.	All
limit	1–100 records.	20

This route doesn’t page.

One record

Field	Meaning
issuer_cik	The company.
owner_name, owner_cik	The reporting owner.
form, filed, event_date	The form, the day it was filed, and the date of the event that required it.
shares, percent_of_class	The amount owned and the percent of the class, as filed text. Blank is null, never 0.
amendment_number, prior_accession	For an amendment, its number and the earlier filing it names, when present.
accession, filing_url	The filing, and its page on EDGAR.

What to expect

• Structured filings from 2024-12-18 only. That’s when the SEC began requiring Schedules 13D and 13G in a structured format. Older text filings aren’t covered.
• Co-owners are separate records. Several owners on one filing each get a record. Don’t add their shares together as if they were separate holdings.
• Amounts are text. shares and percent_of_class are kept exactly as filed, so parse them yourself.