Schedule 13D Filings: Reports on Major Shareholders

Browse SECForm4's public list of U.S. reports about large company shareholdings. No company information is needed to request the available list.

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SECForm4

Schedule 13D Filings: Reports on Major Shareholders

Browse SECForm4's public list of U.S. reports about large company shareholdings. No company information is needed to request the available list.

You receive

Get SECForm4's available public list of U.S. Schedule 13D reports. Schedule 13D is the name of a report used to disclose certain large shareholdings in a company. Each entry may show the company, who filed the report, shares or percentage reported, how that amount changed from the prior report, dates, and links to the report and related history pages. Open a report link to read its details.

Start with your task

[Show me the available U.S. reports about major company shareholders.]

What to know

SECForm4 says this public list is delayed by six months, so recent events may be missing. Reported shares describe what was filed at that time, not what the person or organization owns today. The list may not include every report for a company.

Inputs & outputs

Inspect the current inputs, availability, and maximum charge before starting.

Input schema

Input schema
Field / Path	Type	Requirement	Meaning
Optional query parameters`queryParams`	`object`	Optional	Optional object passed to the listing endpoint. No named filter is defined in the current contract, so omit it for the basic listing rather than assuming company or date filters.

View raw JSON

{
  "type": "object",
  "required": [],
  "properties": {
    "queryParams": {
      "type": "object",
      "properties": {},
      "additionalProperties": true
    }
  },
  "additionalProperties": false
}

Result schema

No fixed output contract is available. Field types reflect saved result evidence; individual responses can differ.

Result schema
Field / Path	Type	Meaning
Disclosure entries`result.data.items`	`array`	The disclosure rows available in the source listing. The number of entries is not fixed, and each row describes reported information rather than a current ownership record.
Filing type`result.data.items[].type`	`string`	The source's filing-type label. Retain it when distinguishing Schedule 13D records and amendments.
Company`result.data.items[].company_symbol`	`string`	Source text identifying the company; it can combine the company name and stock symbol rather than containing a ticker alone.
Reporting investor`result.data.items[].filed_by_symbol`	`string`	Source text identifying the person or organization that filed the ownership report. The property name does not mean the value is a stock ticker.
Reported holding`result.data.items[].shares_owned_owned`	`string`	Source text showing reported shares and, when supplied, the ownership percentage. Preserve the share count and percentage together; they describe the disclosure, not a live position.
Change from previous report`result.data.items[].shares_vs_prev_report`	`string`	Source text comparing the holding with the previous report. It may combine a share change, percentage change or position label. It is not an individual trade record.
Reported event date`result.data.items[].transaction_date`	`string`	Date text assigned by the source to the disclosed event. Keep it separate from the reporting date and do not infer a time of day.
Reporting date text`result.data.items[].reported_datetime`	`string`	Source reporting date and time text, sometimes with a transaction label. Its timezone is not specified by the Tool contract; retain the original text.
Filing link`result.data.items[].view_url`	`string`	SECForm4 source URL for the entry's disclosure. Use it to inspect the filing behind the listing row.
Company ownership history`result.data.items[].company_symbol_url`	`string`	SECForm4 history-page link associated with the company. It is a source-page reference, not history returned within this row.
Reporting investor history`result.data.items[].filed_by_symbol_url`	`string`	SECForm4 history-page link associated with the reporting investor. Open the linked source separately to inspect that history.

Additional notes

Sources and timing

The list comes from SECForm4's public 13D page, which says its public information is delayed by six months. The SEC overview of Schedule 13D and 13G explains these U.S. reports in more detail.

Check the dates shown before using the list for a recent event. These are reported shareholdings, not a live view of what someone owns today, and the source list may not include every report for a company.

Questions about this tool.

Inputs, results and details to know before running it.

Get connected

It is the name of a U.S. report used to disclose certain large shareholdings in a company. The SEC also describes a separate Schedule 13G report for some people or organizations. This Tool lists Schedule 13D reports.

Schedule 13D Filings: Reports on Major Shareholders

Schedule 13D Filings: Reports on Major Shareholders

You receive

Start with your task

What to know

Inputs & outputs

Input schema

Result schema

Sources and timing

Connect your AI assistant

Ask for the available list

Open a report

Questions about this tool.

You receive

Start with your task

What to know

Inputs & outputs

Input schema

Result schema

Sources and timing

Connect your AI assistant

Ask for the available list

Open a report

Questions about this tool.

What does Schedule 13D mean?

Can I read the full report from this list?

If a company is missing, does that mean it has no reports?