# SEC 13F Holdings Tracker - Berkshire Bridgewater (`wiry_kingdom/sec-13f-holdings-tracker`) Actor Parse SEC Form 13F-HR to extract institutional investor holdings. Berkshire, Bridgewater, Citadel, Renaissance, 5000+ funds. Returns every position with CUSIP, shares, value, call/put options, voting. Free SEC EDGAR API. The data behind WhaleWisdom and HedgeFollow. - **URL**: https://apify.com/wiry\_kingdom/sec-13f-holdings-tracker.md - **Developed by:** [Mohieldin Mohamed](https://apify.com/wiry_kingdom) (community) - **Categories:** Business, Developer tools - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks - **User rating**: No ratings yet ## Pricing Pay per event 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 Holdings Tracker — What Berkshire, Bridgewater, and Citadel Own **The cleanest way to pull institutional investor holdings from SEC Form 13F-HR filings. Every position. Every quarter. Every fund managing $100M+. Free SEC EDGAR API. No key required.** This is the data layer that powers **WhaleWisdom, Insider Monkey, HedgeFollow, Stockzoa, and every "what does Buffett own?" article you've ever read.** We pull directly from SEC EDGAR, parse the raw Form 13F-HR XML, and return one clean row per position with full metadata — including option calls, option puts, and CUSIP identifiers for downstream ticker lookup. ### What you actually get (verified on real filings) Tested against Q4 2025 filings from three of the world's largest institutional investors: #### Berkshire Hathaway (Warren Buffett) — 110 positions extracted | Issuer | Shares | Value | |--------|-------:|------:| | ALLY FINL INC | 12,719,675 | $576,074,081 | | ... 109 more positions including Apple, Coca-Cola, American Express, Occidental Petroleum, Chevron, Kraft Heinz, Moody's, etc. | | | #### Bridgewater Associates (Ray Dalio) — 1,040 positions, 43 over $100M | Issuer | Shares | Value | |--------|-------:|------:| | ALPHABET INC | 1,590,826 | $497,928,538 | | AMAZON COM INC | 1,948,254 | $449,695,988 | | ADOBE INC | 1,275,055 | $446,256,499 | | ADVANCED MICRO DEVICES INC | 1,656,527 | $354,761,822 | | ALTRIA GROUP INC | 3,276,751 | $188,937,463 | #### Citadel Advisors (Ken Griffin) — 15,403 positions, filtered to NVIDIA | Position Type | Shares | Value | |--------------|-------:|------:| | NVIDIA COM (direct) | 11,479,330 | **$2,140,895,045** | | NVIDIA COM (direct) | 10,080,093 | **$1,879,937,345** | | NVIDIA CALL options | 77,385,900 | **$14,432,470,350** | | NVIDIA PUT options | 54,984,100 | **$10,254,534,650** | | NVIDIA CALL options | 552,400 | $103,022,600 | | NVIDIA PUT options | 64,200 | $11,973,300 | **$28.8 billion of NVIDIA exposure at ONE hedge fund** — this is the kind of data institutional investors pay thousands per month for. Each row includes: - **Filer identity**: legal name, SEC CIK, filing date, period of report - **Position identity**: issuer name, title of class (COM, CL A COM, CALL, PUT, etc.), CUSIP, FIGI (Bloomberg identifier) - **Position size**: shares, market value in USD (as of period end) - **Discretion**: SOLE (sole discretion), DFND (defined), SHRD (shared), NONE - **Voting authority**: sole voting, shared voting, no voting authority breakdown - **Option flags**: isCallOption, isPutOption (yes, 13F filings disclose options positions) - **Direct link** to the original SEC EDGAR filing ### Why use this **Form 13F is the single most-monetized SEC dataset in existence.** Every quarter, ~5,000 institutional investors managing $100M+ in equities must file a complete list of their US equity holdings within 45 days of quarter end. This creates a transparency window that the entire finance industry exploits: - **Retail traders** follow Buffett, Burry, Ackman, Einhorn to copy their trades - **Hedge fund LPs** monitor performance and position turnover at funds they're invested in - **Quant funds** run "follow the smart money" strategies based on 13F crowd-sourcing - **M&A advisory firms** identify which institutions would need to be approached for deal approval - **Financial journalists** write quarterly "what hedge funds bought" and "what Berkshire sold" articles - **Financial advisors** show clients what institutional money is doing - **Activist investors** identify fellow large shareholders for proxy campaigns - **Short sellers** spot crowded longs that might unwind - **Index providers** track institutional ownership concentration Commercial alternatives and their pricing: - **WhaleWisdom**: $99-499/month (the market leader) - **HedgeFollow**: $49-199/month - **Insider Monkey**: free tier + paid research - **Stockzoa**: $20-50/month - **13F.info**: free reference site - **Bloomberg Terminal** (includes 13F data): $25,000+/year - **FactSet**: $12,000+/year - **S&P Global Market Intelligence**: $10,000+/year This actor delivers the same raw data that powers ALL of those products, via Apify's per-event pricing. ### Named filers supported You can reference these major hedge funds and investors by short name (no CIK lookup needed): - **berkshire** → Berkshire Hathaway Inc (Warren Buffett) - **bridgewater** → Bridgewater Associates LP (Ray Dalio) - **citadel** → Citadel Advisors LLC (Ken Griffin) - **renaissance** → Renaissance Technologies LLC (Jim Simons) - **soros** → Soros Fund Management LLC (George Soros) - **icahn** → Carl C. Icahn - **tepper** / **appaloosa** → Appaloosa LP (David Tepper) - **pershing** → Pershing Square (Bill Ackman) - **point72** → Point72 Asset Management (Steve Cohen) - **two sigma** → Two Sigma Investments - **d1 capital** → D1 Capital Partners - **tiger global** → Tiger Global Management - **coatue** → Coatue Management - **jana partners** → JANA Partners - **third point** → Third Point (Dan Loeb) - **paulson** → Paulson & Co - **baker bros** → Baker Bros Advisors (biotech-focused) Or pass any 10-digit CIK to track any other institutional filer — there are ~5,000 filers total. ### How to use 1. Click **Try for free** (or **Start**) 2. Add filers to **filers** as short names or CIKs: `["berkshire", "bridgewater", "citadel"]` 3. Set **filingsPerFiler** — how many recent filings to pull (1 = latest quarter, 4 = full year, 8 = 2 years for trend analysis) 4. Optionally set **minPositionValue** — skip small positions (e.g. `100000000` for $100M+ only) 5. Optionally set **tickerFilter** — substring match on issuer name (e.g. `"NVIDIA"` or `"APPLE"`) 6. Click **Start** ### Output ```json { "filerName": "Berkshire Hathaway Inc", "filerCik": "0001067983", "periodOfReport": "2025-12-31", "filingDate": "2026-02-17", "accessionNumber": "0001193125-26-054580", "issuerName": "ALLY FINL INC", "titleOfClass": "COM", "cusip": "02005N100", "figi": null, "shares": 12719675, "sharesType": "SH", "marketValueUsd": 576074081, "investmentDiscretion": "DFND", "otherManager": "4", "votingAuthoritySole": 12719675, "votingAuthorityShared": 0, "votingAuthorityNone": 0, "votingAuthorityShares": 12719675, "isCallOption": false, "isPutOption": false, "filingUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001067983&type=13F-HR&dateb=&owner=include&count=10&accession_number=0001193125-26-054580", "extractedAt": "2026-04-16T00:30:00.000Z" } ```` ### Pricing **Pay-per-event** — the right model for data that varies wildly in volume: - **Actor start**: $0.05 per run - **Per holding extracted**: $0.005 per position pushed to dataset **Example costs:** - Pull Berkshire's latest 13F (~110 positions) → $0.60 - Pull top 10 hedge funds' latest filings (~5,000 total positions) → $25.05 - Track a single fund's positions in a specific stock (filtered) → $0.05-$0.50 - Full quarterly pull of ALL 5,000+ 13F filers (~5 million positions) → ~$25,000 (cheaper than a single Bloomberg Terminal seat) - Daily spot-check of 20 famous investors → ~$6/month For comparison: WhaleWisdom's $99/month plan limits you to the top 100 hedge funds. Our actor pulls any fund for $0.005 per position. Free Apify tier members get $5/month in platform credits, which covers ~1,000 positions per month. ### Honest limitations - **45-day disclosure lag is on SEC's side, not ours.** 13F filings must be filed within 45 days of quarter end, so December 31 data appears in February filings. This isn't real-time — it's quarterly with a 45-day delay. Still, it's what the entire industry uses. - **No short positions.** Form 13F only covers long equity positions. Short positions are NOT disclosed (a major limitation for tracking long/short funds). - **Cover-page-only filings (13F-NT) are excluded.** Some filers rely on another filer's 13F-HR to report their positions jointly — we only parse 13F-HR filings that contain actual positions. - **Multiple lots per position.** When a fund holds the same security across multiple sub-managers, you'll see multiple rows with the same CUSIP. Group by CUSIP in your downstream pipeline to get total position. - **No CUSIP → ticker mapping.** We return the CUSIP verbatim from the SEC. For ticker lookup, pipe into a CUSIP-to-ticker service (the OpenFIGI API is free). - **Older filings may use the legacy TEXT format** (before ~2013). We only parse the modern XML format. For most filers this covers everything from 2013 onward. ### Tips for extracting alpha - **Track new positions** by diffing consecutive quarters (store both runs, join on CUSIP, find rows that appeared in Q2 but not Q1) - **Track position changes** (Buffett added 5M shares of APPLE → bullish signal for the stock) - **Cluster analysis**: when 5+ hedge funds all initiate positions in the same stock in the same quarter, that's a "hedge fund consensus" signal worth investigating - **Sector concentration**: aggregate positions by sector to spot theme rotations (hedge funds rotating out of tech into energy, etc.) - **Combine with the SEC Form 4 Insider Trades actor** — when insiders buy (code P) AND hedge funds increase their positions in the same quarter, that's a double-confirmation bullish signal - **Options positioning**: the `isCallOption` / `isPutOption` flags reveal hedge fund directional bets on volatility and direction — Citadel's $28B NVIDIA exposure is a real example - **Small-cap signals**: hedge fund 13F filings for small caps (market cap <$1B) are much more actionable than large cap positions because of lower crowding ### Source This actor uses the official **SEC EDGAR REST API** for filing discovery (`https://data.sec.gov/submissions/CIK{cik}.json`) and the **SEC Archives** for raw 13F-HR information table XML. Both are free, public, require no authentication, and are maintained by the SEC itself. SEC requires a User-Agent header (we use `MCPHubResearch contact@mcphub.dev`) and limits to 10 requests per second per IP. We comply automatically. ### License This actor is MIT licensed. SEC filing data is in the **public domain** (works of the US federal government are not subject to copyright). You may use the extracted 13F holdings data for any purpose, including commercial trading and research, with no restrictions. ### Disclaimer **This actor is for research and information purposes only.** Following hedge fund positions is NOT a guaranteed trading strategy — by the time 13F data is public, the fund may have already exited the position. Do not rely on 13F data alone for trading decisions. Consult a licensed financial advisor. # Actor input Schema ## `filers` (type: `array`): List of institutional investor CIKs OR known short names. Examples of major filers: 'berkshire' (Berkshire Hathaway), 'bridgewater', 'citadel', 'renaissance', 'soros', 'icahn', 'tepper'. Or use full CIKs like '0001067983'. Empty = use Berkshire as default. ## `filingsPerFiler` (type: `integer`): How many recent 13F-HR filings to fetch per filer. 1 = just the latest quarter. 4 = the last year. Use 8+ for multi-quarter trend analysis. ## `minPositionValue` (type: `integer`): Filter to positions with market value >= this amount. Use 0 for all positions, 10000000 for $10M+ positions, 100000000 for $100M+ positions. ## `tickerFilter` (type: `string`): OPTIONAL: filter to positions matching this issuer name substring (e.g. 'APPLE' to only get Apple positions). Note: 13F filings use issuer NAMES, not tickers, so use the company name. ## `proxyConfiguration` (type: `object`): Optional Apify Proxy. SEC EDGAR is friendly to direct access. ## Actor input object example ```json { "filers": [ "berkshire" ], "filingsPerFiler": 1, "minPositionValue": 0, "tickerFilter": "", "proxyConfiguration": { "useApifyProxy": false } } ``` # Actor output Schema ## `dataset` (type: `string`): No description # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = { "filers": [ "berkshire" ] }; // Run the Actor and wait for it to finish const run = await client.actor("wiry_kingdom/sec-13f-holdings-tracker").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${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 = { "filers": ["berkshire"] } # Run the Actor and wait for it to finish run = client.actor("wiry_kingdom/sec-13f-holdings-tracker").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 '{ "filers": [ "berkshire" ] }' | apify call wiry_kingdom/sec-13f-holdings-tracker --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=wiry_kingdom/sec-13f-holdings-tracker", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "SEC 13F Holdings Tracker - Berkshire Bridgewater", "description": "Parse SEC Form 13F-HR to extract institutional investor holdings. Berkshire, Bridgewater, Citadel, Renaissance, 5000+ funds. Returns every position with CUSIP, shares, value, call/put options, voting. Free SEC EDGAR API. The data behind WhaleWisdom and HedgeFollow.", "version": "0.1", "x-build-id": "tQKh1xuRiPZTyOHGD" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/wiry_kingdom~sec-13f-holdings-tracker/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-wiry_kingdom-sec-13f-holdings-tracker", "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": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/wiry_kingdom~sec-13f-holdings-tracker/runs": { "post": { "operationId": "runs-sync-wiry_kingdom-sec-13f-holdings-tracker", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$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": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/wiry_kingdom~sec-13f-holdings-tracker/run-sync": { "post": { "operationId": "run-sync-wiry_kingdom-sec-13f-holdings-tracker", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$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", "properties": { "filers": { "title": "13F filers (institutional investors) to track", "type": "array", "description": "List of institutional investor CIKs OR known short names. Examples of major filers: 'berkshire' (Berkshire Hathaway), 'bridgewater', 'citadel', 'renaissance', 'soros', 'icahn', 'tepper'. Or use full CIKs like '0001067983'. Empty = use Berkshire as default.", "default": [ "berkshire" ], "items": { "type": "string" } }, "filingsPerFiler": { "title": "Latest N filings per filer", "minimum": 1, "maximum": 20, "type": "integer", "description": "How many recent 13F-HR filings to fetch per filer. 1 = just the latest quarter. 4 = the last year. Use 8+ for multi-quarter trend analysis.", "default": 1 }, "minPositionValue": { "title": "Min position value (USD)", "minimum": 0, "type": "integer", "description": "Filter to positions with market value >= this amount. Use 0 for all positions, 10000000 for $10M+ positions, 100000000 for $100M+ positions.", "default": 0 }, "tickerFilter": { "title": "Ticker filter (deprecated note)", "type": "string", "description": "OPTIONAL: filter to positions matching this issuer name substring (e.g. 'APPLE' to only get Apple positions). Note: 13F filings use issuer NAMES, not tickers, so use the company name.", "default": "" }, "proxyConfiguration": { "title": "Proxy configuration", "type": "object", "description": "Optional Apify Proxy. SEC EDGAR is friendly to direct access.", "default": { "useApifyProxy": false } } } }, "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 } } } } } } } } } } ```