Live SEC Schedule 13D and 13G ownership filings - activist stakes, 5% owners, amendments and exits - read directly from EDGAR by ORTEX, typically within minutes of the filing hitting the SEC. Each row carries the subject company, the reporting filer (with their CIK and an image URL hosted on the ORTEX CDN), the percent of class held, the change versus the same filer's prior filing on that company, shares owned, and a link to the filing on sec.gov. 13G-to-13D conversions - the moment a passive holder turns activist - are flagged as 13G>13D, and index-fund noise can be excluded with filerKind=Active.
Try it out! You can test the API with the trial key TEST. Simply include it in your request headers; either here, or add the header "Ortex-Api-Key": "TEST" to your http request.
Trial key restrictions: A list of randomly selected rows will be returned
Get full access! Get a key at app.ortex.com/apis
# OpenAPI definition ```json { "openapi": "3.0.3", "info": { "title": "ORTEX APIs", "version": "1.0", "description": "A revolutionary global equity analytics platform which identifies and analyses relevant data for your stocks." }, "paths": { "/api/v1/activist_filings": { "get": { "operationId": "activist_filings_list", "description": "\nLive SEC Schedule 13D and 13G ownership filings - activist stakes, 5% owners, amendments and exits - read directly from EDGAR by ORTEX, typically within minutes of the filing hitting the SEC. Each row carries the subject company, the reporting filer (with their CIK and an image URL hosted on the ORTEX CDN), the percent of class held, the change versus the same filer's prior filing on that company, shares owned, and a link to the filing on sec.gov. 13G-to-13D conversions - the moment a passive holder turns activist - are flagged as 13G>13D, and index-fund noise can be excluded with filerKind=Active.
\n\nTry it out! You can test the API with the trial key TEST. Simply include it in your request headers; either here, or add the header \"Ortex-Api-Key\": \"TEST\" to your http request.
\nTrial key restrictions: A list of randomly selected rows will be returned
\nGet full access! Get a key at app.ortex.com/apis
\n", "summary": "Recent 13D/G Filings", "parameters": [ { "in": "query", "name": "filerKind", "schema": { "type": "string" }, "description": "Filter out index-fund noise: 'Active' excludes the passive mega-managers", "examples": { "NoFilter": { "summary": "No filter" }, "Active": { "value": "Active" }, "PassiveGiant": { "value": "Passive giant", "summary": "Passive giant" } } }, { "in": "query", "name": "filerName", "schema": { "type": "string" }, "description": "Filer name (case-insensitive substring match)" }, { "in": "query", "name": "filingType", "schema": { "type": "string" }, "description": "Schedule type. Amendments carry the /A suffix; 13G-to-13D conversions read 13G>13D", "examples": { "NoFilter": { "summary": "No filter" }, "13D": { "value": "13D" }, "13G": { "value": "13G" }, "13DAmendment": { "value": "13D/A", "summary": "13D amendment" } } }, { "in": "query", "name": "from_date", "schema": { "type": "string" }, "description": "Filed-date from date in format yyyy-mm-dd. Default: one year back from to_date" }, { "name": "page", "required": false, "in": "query", "description": "A page number within the paginated result set.", "schema": { "type": "integer" } }, { "name": "page_size", "required": false, "in": "query", "description": "Number of results to return per page.", "schema": { "type": "integer" } }, { "in": "query", "name": "ticker", "schema": { "type": "string" }, "description": "Stock ticker of the subject company" }, { "in": "query", "name": "to_date", "schema": { "type": "string" }, "description": "Filed-date to date in format yyyy-mm-dd. Default: today. Maximum date range is 1 year" } ], "tags": [ "Activist Filings" ], "security": [ { "ApiKeyAuth": [] } ], "responses": { "200": { "content": { "application/json": { "schema": { "$ref": "#/components/schemas/PaginatedActivistFilingsList" }, "examples": { "ActivistFiling": { "value": { "paginationLinks": { "next": "http://api.example.org/accounts/?page=4", "previous": "http://api.example.org/accounts/?page=2" }, "length": 123, "rows": [ { "company": "Nautilus Biotechnology, Inc.", "ticker": "NAUT", "exchange": "NASDAQ", "filedDate": "2026-08-28", "eventDate": "2026-08-26", "filingType": "13D/A", "filerName": "Marc L. Andreessen", "filerCik": "0001808805", "filerImageUrl": "https://d12umhc4qnznw5.cloudfront.net/activists/0001808805.jpg", "percentOfClass": 6, "percentChange": -1.1, "sharesOwned": 7680000, "filerKind": "Active", "secUrl": "https://www.sec.gov/Archives/edgar/data/1808805/000172572126000006/" } ], "creditsUsed": 3, "creditsLeft": 999 }, "summary": "Activist filing" } } } }, "description": "" }, "400": { "description": "Invalid request parameters" }, "403": { "description": "Not authorized" }, "404": { "description": "Data not found" }, "429": { "description": "Rate limit exceeded" }, "500": { "description": "Internal server error" } } } } }, "components": { "schemas": { "ActivistFilings": { "type": "object", "properties": { "company": { "type": "string" }, "ticker": { "type": "string" }, "exchange": { "type": "string", "readOnly": true }, "filedDate": { "type": "string", "format": "date" }, "eventDate": { "type": "string", "format": "date", "nullable": true }, "filingType": { "type": "string" }, "filerName": { "type": "string" }, "filerCik": { "type": "string" }, "filerImageUrl": { "type": "string" }, "percentOfClass": { "type": "number", "format": "double", "nullable": true }, "percentChange": { "type": "number", "format": "double", "nullable": true }, "sharesOwned": { "type": "number", "format": "double", "nullable": true }, "filerKind": { "type": "string" }, "secUrl": { "type": "string" } }, "required": [ "company", "eventDate", "exchange", "filedDate", "filerCik", "filerImageUrl", "filerKind", "filerName", "filingType", "percentChange", "percentOfClass", "secUrl", "sharesOwned", "ticker" ] }, "PaginatedActivistFilingsList": { "type": "object", "required": [ "length", "paginationLinks", "rows" ], "properties": { "paginationLinks": { "type": "object", "example": { "next": "http://api.example.org/accounts/?page=4", "previous": "http://api.example.org/accounts/?page=2" } }, "length": { "type": "integer", "example": 123 }, "rows": { "type": "array", "items": { "$ref": "#/components/schemas/ActivistFilings" } }, "creditsUsed": { "type": "integer", "example": 3 }, "creditsLeft": { "type": "integer", "example": 999 } } } }, "securitySchemes": { "ApiKeyAuth": { "type": "apiKey", "in": "header", "name": "Ortex-Api-Key", "description": "Use test API key: `TEST` to get a limited result." } } }, "servers": [ { "url": "https://api.ortex.com/", "description": "Production" } ] } ```