# SEC 13F Institutional Holdings Tracker by Filer (`v0iddo/sec-13f-institutional-holdings`) Actor Pull SEC Form 13F quarterly holdings for any institutional manager by CIK. One row per holding — CUSIP, issuer, USD value, shares, put/call, investment discretion, sub-manager attribution, voting authority. Built for cron and ad-hoc research. SEC EDGAR direct (free, no auth). - **URL**: https://apify.com/v0iddo/sec-13f-institutional-holdings.md - **Developed by:** [vøiddo](https://apify.com/v0iddo) (community) - **Categories:** Business - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks - **User rating**: No ratings yet ## Pricing $10.00 / 1,000 13f holding extracteds This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Actors are written with capital "A". ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## SEC 13F Institutional Holdings Tracker — by Filer Pull SEC Form **13F-HR quarterly holdings** for any institutional manager by CIK. One clean row per holding line — CUSIP, issuer name, share class, USD value, shares (or principal), put/call flag, investment discretion, sub-manager attribution, voting authority. Built for cron (track "what did Berkshire just file?") and for ad-hoc research (pull 8 quarters of Bridgewater for a regime-change analysis). No auth, no scraping — pure SEC EDGAR. ### Inputs ```json { "filerCiks": ["1067983", "1350694"], "lookbackQuarters": 1, "includeAmendments": false } ```` | input | default | notes | |---|---|---| | `filerCiks` | — | Required. List of EDGAR CIKs of the managers. Examples: `1067983` (Berkshire Hathaway), `1350694` (Bridgewater Associates), `1364742` (BlackRock), `1423053` (Citadel Advisors), `1697748` (ARK Investment Management). | | `lookbackQuarters` | `1` | How many of the most recent 13F-HR filings per filer to pull. `1` = just the latest snapshot. | | `includeAmendments` | `false` | If true, also pull 13F-HR/A (amendment) filings. | | `userAgent` | (voiddo default) | SEC requires a User-Agent identifying the requester. | ### Output One row per `` line in the 13F. A single holding may appear multiple times if multiple sub-managers (under the same filer umbrella) hold separate blocks — that's how SEC structures the filing and we preserve it (deduplicate downstream if you want a clean per-CUSIP roll-up). | field | example | |---|---| | filerCik | `1067983` | | filerName | `BERKSHIRE HATHAWAY INC` | | filingManager | `Berkshire Hathaway Inc` | | form | `13F-HR` | | accessionNumber | `0001193125-26-226661` | | filingDate | `2026-05-15` | | periodOfReport | `03-31-2026` | | isAmendment | `false` | | nameOfIssuer | `APPLE INC` | | titleOfClass | `COM` | | cusip | `037833100` | | valueUsd | `61875000000` | | shares | `300000000` | | principalAmount | `null` | | shareUnit | `SH` (or `PRN` if principal $) | | putCall | `null`, `Put`, or `Call` | | investmentDiscretion | `DFND`, `SOLE`, `OTR` | | votingSole | `300000000` | | votingShared | `0` | | votingNone | `0` | | otherManagerSeqs | `["4"]` | | otherManagerNames | `["Buffett Warren E"]` | | filingUrl | `https://www.sec.gov/Archives/edgar/data/1067983/.../0001193125-26-226661-index.htm` | ### Daily / weekly cron pattern 13F filings drop **45 days after each calendar quarter** (so May 15, Aug 14, Nov 14, Feb 14). A weekly cron with `lookbackQuarters: 1` catches each new filing within days of it being posted. ```json { "filerCiks": ["1067983", "1350694", "1423053"], "lookbackQuarters": 1 } ``` ### Real-world questions this answers - **Hedge-fund following.** What did Berkshire just buy or sell vs. last quarter? - **Smart-money flow.** Which 13F filers piled into NVDA last quarter? - **Risk monitoring.** Track concentration in a single CUSIP across N filers. - **Manager attribution.** Berkshire's 13F includes ~15 sub-managers (Buffett, Combs, Weschler, …) — `otherManagerNames` tells you whose desk this position is on. ### What it doesn't do - No 13F-NT (no holdings filings). - No 13D / 13G (those are a separate filing type for >5% beneficial ownership — different actor). - No put/call valuation analytics — raw filing data only. - No automatic delta-vs-prior-quarter computation — pull `lookbackQuarters: 2` and diff downstream if you need that. ### Maintained by [vøiddo studio](https://voiddo.com) — small independent shop. # Actor input Schema ## `filerCiks` (type: `array`): List of SEC EDGAR Central Index Keys (CIKs) for the institutional managers you want to track. Examples: 1067983 (Berkshire Hathaway), 1350694 (Bridgewater), 1364742 (BlackRock), 1423053 (Citadel Advisors), 1697748 (ARK Investment). Find a CIK at sec.gov/cgi-bin/browse-edgar — search by manager name. Multiple CIKs are union'd. ## `lookbackQuarters` (type: `integer`): How many of the most recent 13F-HR filings to pull per filer. Use 1 to fetch only the most recent quarterly snapshot (recommended). Use 4+ for historical change-tracking. ## `includeAmendments` (type: `boolean`): If true, also pull 13F-HR/A (amendment) filings, which restate or correct prior 13F-HR. ## `userAgent` (type: `string`): SEC requires a polite User-Agent identifying the requesting party. Defaults to voiddo studio ops contact. ## Actor input object example ```json { "filerCiks": [ "1067983" ], "lookbackQuarters": 1, "includeAmendments": false, "userAgent": "voiddo studio sec-13f ops@voiddo.com" } ``` # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = { "filerCiks": [ "1067983" ] }; // Run the Actor and wait for it to finish const run = await client.actor("v0iddo/sec-13f-institutional-holdings").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = { "filerCiks": ["1067983"] } # Run the Actor and wait for it to finish run = client.actor("v0iddo/sec-13f-institutional-holdings").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{ "filerCiks": [ "1067983" ] }' | apify call v0iddo/sec-13f-institutional-holdings --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=v0iddo/sec-13f-institutional-holdings", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "SEC 13F Institutional Holdings Tracker by Filer", "description": "Pull SEC Form 13F quarterly holdings for any institutional manager by CIK. One row per holding — CUSIP, issuer, USD value, shares, put/call, investment discretion, sub-manager attribution, voting authority. Built for cron and ad-hoc research. SEC EDGAR direct (free, no auth).", "version": "0.1", "x-build-id": "5lAflSlShc5UHEENp" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/v0iddo~sec-13f-institutional-holdings/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-v0iddo-sec-13f-institutional-holdings", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/v0iddo~sec-13f-institutional-holdings/runs": { "post": { "operationId": "runs-sync-v0iddo-sec-13f-institutional-holdings", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/v0iddo~sec-13f-institutional-holdings/run-sync": { "post": { "operationId": "run-sync-v0iddo-sec-13f-institutional-holdings", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "required": [ "filerCiks" ], "properties": { "filerCiks": { "title": "Filer CIKs", "type": "array", "description": "List of SEC EDGAR Central Index Keys (CIKs) for the institutional managers you want to track. Examples: 1067983 (Berkshire Hathaway), 1350694 (Bridgewater), 1364742 (BlackRock), 1423053 (Citadel Advisors), 1697748 (ARK Investment). Find a CIK at sec.gov/cgi-bin/browse-edgar — search by manager name. Multiple CIKs are union'd.", "items": { "type": "string" } }, "lookbackQuarters": { "title": "Look back (quarters)", "minimum": 1, "maximum": 40, "type": "integer", "description": "How many of the most recent 13F-HR filings to pull per filer. Use 1 to fetch only the most recent quarterly snapshot (recommended). Use 4+ for historical change-tracking.", "default": 1 }, "includeAmendments": { "title": "Include 13F-HR/A amendments", "type": "boolean", "description": "If true, also pull 13F-HR/A (amendment) filings, which restate or correct prior 13F-HR.", "default": false }, "userAgent": { "title": "User-Agent string", "type": "string", "description": "SEC requires a polite User-Agent identifying the requesting party. Defaults to voiddo studio ops contact.", "default": "voiddo studio sec-13f ops@voiddo.com" } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```