# SEC 13F Whale Tracker - Berkshire & Citadel Portfolio Filings (`robinworld/sec-13f-hedge-fund-whale-tracker`) Actor

Real-time SEC EDGAR 13F-HR and Form 4 tracker parsing Warren Buffett, Citadel, and Scion institutional consensus buys within minutes.

- **URL**: https://apify.com/robinworld/sec-13f-hedge-fund-whale-tracker.md
- **Developed by:** [Robin world](https://apify.com/robinworld) (community)
- **Categories:**
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $7.00 / 1,000 results

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/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
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.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — 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 Hedge Fund Whale Portfolio Tracker

> Track quarterly SEC Form 13F filings, portfolio allocation shifts, new stock positions, and liquidations from Wall Street's most influential fund managers (Warren Buffett, Michael Burry, Ray Dalio, Ken Griffin, Bill Ackman) directly via official SEC EDGAR submissions.

[![Apify Actor](https://img.shields.io/badge/Apify-Actor%20Ready-brightgreen.svg)](https://apify.com)
[![Data Source](https://img.shields.io/badge/Data%20Source-SEC%20EDGAR%20Official-blue.svg)](https://sec.gov/edgar)
[![Pricing](https://img.shields.io/badge/Pricing-Pay--Per--Event%20\($0.0050/record\)-orange.svg)](#pricing)
[![Free Trial](https://img.shields.io/badge/Free%20Trial-$5.00%20Credit%20Included-success.svg)](#free-trial)

***

### 💡 Why Choose This Actor?

Every quarter, institutional investment managers with over $100M in assets must disclose their equity holdings to the SEC via Form 13F. Tracking these "smart money" whales reveals where the world's most successful investors are placing their capital.

Traditional whale-tracking terminals charge hundreds of dollars per month for delayed public data:

| Feature / Metric | Commercial Quant Terminals (WhaleWisdom / Dataroma) | Manual SEC EDGAR Search | **SEC 13F Hedge Fund Whale Tracker** |
| :--- | :--- | :--- | :--- |
| **Monthly Pricing** | **$300 – $1,000 / month** (Locked subscription) | $0 + Hours of manual PDF scraping | **Pay-Per-Event ($0.0050 / filing)** (Zero commitment) |
| **Data Freshness** | Delayed batch sync | Real-time | **Real-time direct SEC EDGAR API sync** |
| **API & Webhook Integrations** | Locked to highest enterprise tier | None | **Instant JSON, CSV, Webhook & Discord/Slack alerts** |
| **Supported Managers** | Fixed list | Single CIK search | **Multi-whale simultaneous tracking + Custom CIKs** |
| **Free Trial** | Demo call required | None | **$5.00 Free Trial Credit** (Up to 1,000 filings free) |

***

### 🎯 Target Audiences & Use Cases

1. **Quantitative & Long/Short Equity Traders**:
   - Backtest and mirror the consensus stock picks of top hedge funds.
   - Detect aggressive position building before quarterly 13F news hits financial media.
2. **Individual Stock Investors & Financial Bloggers**:
   - Track Berkshire Hathaway's latest bank and tech trades (Warren Buffett).
   - Track Scion Asset Management's contrarian macro bets (Michael Burry).
3. **FinTech Platforms & Algorithmic Newsletters**:
   - Power automated "Whale Watcher" email digests and live trading alerts.

***

### 📥 Input Parameters

| Parameter | Type | Default | Description |
| :--- | :--- | :--- | :--- |
| `trackedWhales` | Array | `["berkshire", "scion", "bridgewater", "citadel", "pershing_square"]` | List of hedge fund aliases or custom 10-digit CIK numbers. |
| `formType` | Select | `"13F-HR"` | Filter forms: `13F-HR` (Holdings Report) or `ALL` (All 13F notices). |
| `maxItems` | Integer | `30` | Maximum number of filing records to retrieve (up to 300). |

***

### 📤 Output Data Format (JSON Sample)

```json
[
  {
    "whale_name": "Warren Buffett (Berkshire Hathaway) (BERKSHIRE HATHAWAY INC)",
    "form_type": "13F-HR",
    "filing_date": "2026-08-14",
    "report_period": "2026-06-30",
    "quarter_label": "Q2 2026 Holdings",
    "cik": "0001067983",
    "accession_number": "0001193125-26-352200",
    "primary_doc_description": "13F HOLDINGS REPORT",
    "sec_filing_url": "https://www.sec.gov/Archives/edgar/data/1067983/000119312526352200/primary_doc.xml",
    "scraped_at": "2026-09-08T05:50:00+00:00"
  }
]
```

***

### 🐍 1-Click Python Integration

```python
from apify_client import ApifyClient

## Initialize client with your Apify API Token
client = ApifyClient("YOUR_APIFY_TOKEN")

## Run SEC 13F Hedge Fund Whale Portfolio Tracker
run = client.actor("robinworld/sec-13f-hedge-fund-whale-tracker").call(
    run_input={
        "trackedWhales": ["berkshire", "scion", "citadel", "bridgewater"],
        "formType": "13F-HR",
        "maxItems": 20
    }
)

## Fetch filings from the default dataset
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(f"[{item['quarter_label']}] {item['whale_name']}")
    print(f"  👉 Filed: {item['filing_date']} | Period: {item['report_period']}")
    print(f"  🔗 EDGAR: {item['sec_filing_url']}")
```

***

### ❓ Frequently Asked Questions (FAQ)

##### Q: What is Form 13F?

Form 13F is a mandatory quarterly report filed by institutional investment managers with at least $100M in assets under management, disclosing their US-listed equity holdings.

##### Q: How fast is this data updated?

This Actor connects directly to the official SEC EDGAR REST submissions stream with zero third-party delay, instantly reflecting new 13F filings as soon as they are published by the SEC.

# Actor input Schema

## `trackedWhales` (type: `array`):

List of hedge fund keys to query (e.g. 'berkshire', 'scion', 'bridgewater', 'citadel', 'pershing\_square', 'appaloosa', 'renaissance', 'ark').

## `formType` (type: `string`):

Filter by 13F filing type (13F-HR = Holdings Report, 13F-NT = Notice, ALL = All 13F forms).

## `maxItems` (type: `integer`):

Maximum number of 13F filing records to return.

## Actor input object example

```json
{
  "trackedWhales": [
    "berkshire",
    "scion",
    "bridgewater",
    "citadel",
    "pershing_square"
  ],
  "formType": "13F-HR",
  "maxItems": 30
}
```

# Actor output Schema

## `overview` (type: `string`):

Direct link to dataset containing 13F whale filings and portfolio updates.

# 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 '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("robinworld/sec-13f-hedge-fund-whale-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 '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("robinworld/sec-13f-hedge-fund-whale-tracker").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call robinworld/sec-13f-hedge-fund-whale-tracker --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,robinworld/sec-13f-hedge-fund-whale-tracker"
        }
    }
}

```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/4jQWEi7HiPtFJ05JZ/builds/CfBEgJHYz7Sj9Kkgk/openapi.json