smart-money
PIT-safe
Blockholders (SC 13D / 13G)
get_blockholdersInstitutional and above
Returns SC 13D / SC 13G blockholder disclosures (5%+ stakes) for a US public company. Each row carries percent_owned, sole/shared voting + dispositive split, schedule_type, and the first-class ``going_active`` flag — TRUE when the same filer flipped 13G → 13D within the lookba...
Example Call
example_call.pypython
# Using the Valuein MCP server from Python (via MCP SDK)# Or call directly from Claude / Cursor after setup result = await client.call_tool( "get_blockholders", arguments={ "ticker": "EXAMPLE"})print(result)Direct tool call:get_blockholders(...)
Inputs
| Parameter | Type | Required | Description |
|---|---|---|---|
ticker | string | required | Stock ticker symbol of the issuer — or a CIK (SEC identifier). |
schedule_filter | "13D" | "13G" | "both" | optional | Which schedule(s) to return. '13D' = activist (intent to influence). '13G' = passive. 'both' = no filter.Default: "both" |
as_of_date | string | optional | PIT filter on accepted_at — only filings on or before this date. |
latest_only | boolean | optional | When true (default), keep only the most recent filing per (filer, schedule prefix) — typically what analysts want. Set false to see the full filing history.Default: true |
collapse_groups | boolean | optional | When true, fold multi-reporting-person filings into a single row, with secondary persons in the ``persons[]`` field. Default false: each person stays as its own row.Default: false |
lookback_days | integer | optional | Window for the going_active (13G → 13D) detection. Default 365 days.Default: 365 |
lineage_detail | "off" | "compact" | "full" | optional | Per-row provenance envelope.Default: "compact" |
Output Fields
tickercikcompany_namedata_age_daysstaleness_warningrowsExample Response
Illustrative
response.jsonjson
{ "ticker": "AAPL", "cik": "0000320193", "company_name": "Apple Inc.", "data_age_days": null, "staleness_warning": null, "rows": null}Shape only — field names match the live schema; values are placeholders, not real filings. See MCP server for the structured response shape.
Notes
Available from the Institutional plan and above.
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Not includedInstitutional
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