# SEC 13F Hedge Fund Holdings Tracker (`straightforward_hydra/sec-13f-hedge-fund-tracker`) Actor

Track what hedge funds and institutional managers hold, from their quarterly SEC 13F filings. Enter fund names, get every position ranked by value and portfolio weight.

- **URL**: https://apify.com/straightforward\_hydra/sec-13f-hedge-fund-tracker.md
- **Developed by:** [Dev D](https://apify.com/straightforward_hydra) (community)
- **Categories:** Automation, Developer tools, SEO tools
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $5.00 / 1,000 holdings

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 Hedge Fund Holdings Tracker 🐋

**See exactly what the smart money owns — straight from official SEC 13F filings.**

Every institutional investment manager with over **$100 million** in US equities must file a **Form 13F** each quarter, disclosing their holdings. This Actor turns those filings into clean, structured data: enter a fund name, get **every position ranked by value**, with each holding's **share of the portfolio**.

Track Berkshire Hathaway, Scion Asset Management, Pershing Square, Bridgewater, Renaissance — anyone who files a 13F.

> Data comes exclusively from SEC EDGAR — public, government-mandated disclosures. No login, no proxy, no gray areas.

---

### What you can do with it

- 🐋 **Copy the smart money** — see what famous investors are buying and holding.
- 📊 **Build portfolio dashboards** — every position, ranked, with portfolio weights.
- 🔔 **Track changes quarter to quarter** — pull multiple reports and diff them.
- 🧮 **Feed models & research** — a normalized holdings dataset with CUSIPs and values.
- 📰 **Power newsletters** — "What Warren Buffett bought this quarter" in one run.

### Features

- ✅ **Name → filer resolution** — type `Berkshire Hathaway`, not a CIK number.
- ✅ **Ranked holdings** — every position sorted by value, with a `rank` and `portfolio_percent`.
- ✅ **Top-N filter** — get just the top 10 holdings, or the whole book.
- ✅ **Multiple quarters** — pull the latest report or the last several.
- ✅ **Rich output** — issuer, CUSIP, value, shares, put/call, voting authority, filing link.
- ✅ **Low-maintenance & cheap** — official SEC endpoints, no proxy, no browser.

---

### Input

| Field | Description |
|---|---|
| **Fund / manager names** | e.g. `Berkshire Hathaway`, `Scion Asset Management`. |
| **Manager CIKs** | SEC CIK numbers for exact targeting (optional). |
| **Reports per manager** | How many recent 13F reports to pull (1 = latest quarter). |
| **Top N holdings only** | Only the largest positions, e.g. 10. |
| **Minimum position value (USD)** | Drop positions below this value. |
| **Include amendments** | Include 13F-HR/A amended reports. |
| **Max results** | Cap the number of holdings returned. |
| **Contact email** | Sent to SEC in the User-Agent, per their fair-access policy. |

#### Example — Buffett's latest top 10

```json
{
  "managerNames": ["Berkshire Hathaway"],
  "maxReportsPerManager": 1,
  "topHoldings": 10,
  "contactEmail": "you@example.com"
}
````

#### Example — full books of several funds, last two quarters

```json
{
  "managerNames": ["Scion Asset Management", "Pershing Square Capital", "Appaloosa"],
  "maxReportsPerManager": 2,
  "minValueUsd": 1000000,
  "contactEmail": "you@example.com"
}
```

### Output

Each row is a single holding:

```json
{
  "manager_name": "BERKSHIRE HATHAWAY INC",
  "manager_cik": "1067983",
  "report_date": "2026-03-31",
  "filing_date": "2026-05-15",
  "form_type": "13F-HR",
  "issuer_name": "APPLE INC",
  "title_of_class": "COM",
  "cusip": "037833100",
  "value_usd": 174300000000.0,
  "portfolio_percent": 41.2,
  "rank": 1,
  "shares_or_principal": 905560000.0,
  "shares_type": "SH",
  "put_call": "",
  "investment_discretion": "SOLE",
  "voting_sole": 905560000.0,
  "voting_shared": 0.0,
  "voting_none": 0.0,
  "accession_number": "0000950123-26-005678",
  "filing_url": "https://www.sec.gov/Archives/edgar/data/1067983/000095012326005678/0000950123-26-005678-index.htm"
}
```

### Run it on a schedule

13F filings drop **quarterly** (within 45 days of quarter end). Set the Actor to run on a schedule shortly after each 13F deadline (mid-Feb, mid-May, mid-Aug, mid-Nov) to auto-capture the newest holdings, and connect a Slack / email / Google Sheets integration for alerts.

### Notes & limitations

- Uses SEC EDGAR's official public endpoints; respects SEC's fair-access rate limits.
- 13F reports **long positions in US-listed equities and options only** — no shorts, no cash, no foreign-listed holdings. This is a limitation of the filing itself, not the Actor.
- Filings are disclosed with up to a **45-day lag** after quarter end (SEC rule).
- Position values are reported by the filer; filings from 2023 onward are in whole US dollars.
- This is **factual public data**, not investment advice. Do your own research.

***

#### Keywords

13F scraper, hedge fund holdings, 13F filings, SEC 13F, institutional holdings, hedge fund tracker, whale tracker, follow the smart money, Berkshire Hathaway holdings, Warren Buffett portfolio, institutional investors, fund holdings API, SEC EDGAR 13F, portfolio holdings scraper, quarterly holdings, 13F-HR, superinvestors, guru portfolio, stock ownership data, investment manager holdings, financial data scraper.

# Actor input Schema

## `managerNames` (type: `array`):

Names of the funds or investment managers to track, e.g. "Berkshire Hathaway", "Scion Asset Management", "Pershing Square". Resolved to SEC filers automatically. If a name matches several filers, the closest is used (check the log).

## `managerCiks` (type: `array`):

SEC CIK numbers, for exact targeting. Digits only, e.g. 1067983 for Berkshire. Merged with the names above.

## `maxReportsPerManager` (type: `integer`):

How many of the most recent 13F reports to pull per manager. 1 = latest quarter only. 4 = the last year.

## `topHoldings` (type: `integer`):

Only return each manager's largest positions by value, e.g. 10 for their top 10 holdings. Leave empty for the full portfolio.

## `minValueUsd` (type: `integer`):

Only keep positions worth at least this much. Leave empty for all.

## `includeAmendments` (type: `boolean`):

Include amended reports as well as originals.

## `maxResults` (type: `integer`):

Stop after pushing this many holdings in total. Leave empty for no limit.

## `contactEmail` (type: `string`):

SEC's fair-access policy asks every automated caller to identify itself with a contact email in the User-Agent. Put yours here. It is only sent to SEC.gov.

## Actor input object example

```json
{
  "managerNames": [
    "Berkshire Hathaway",
    "Scion Asset Management"
  ],
  "maxReportsPerManager": 1,
  "includeAmendments": true,
  "contactEmail": "you@example.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 '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "managerNames": [
        "Berkshire Hathaway",
        "Scion Asset Management"
    ],
    "contactEmail": "you@example.com"
};

// Run the Actor and wait for it to finish
const run = await client.actor("straightforward_hydra/sec-13f-hedge-fund-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 = {
    "managerNames": [
        "Berkshire Hathaway",
        "Scion Asset Management",
    ],
    "contactEmail": "you@example.com",
}

# Run the Actor and wait for it to finish
run = client.actor("straightforward_hydra/sec-13f-hedge-fund-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 '{
  "managerNames": [
    "Berkshire Hathaway",
    "Scion Asset Management"
  ],
  "contactEmail": "you@example.com"
}' |
apify call straightforward_hydra/sec-13f-hedge-fund-tracker --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=straightforward_hydra/sec-13f-hedge-fund-tracker",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "SEC 13F Hedge Fund Holdings Tracker",
        "description": "Track what hedge funds and institutional managers hold, from their quarterly SEC 13F filings. Enter fund names, get every position ranked by value and portfolio weight.",
        "version": "0.1",
        "x-build-id": "mISDnEXf6PtGA0KQ5"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/straightforward_hydra~sec-13f-hedge-fund-tracker/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-straightforward_hydra-sec-13f-hedge-fund-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": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/straightforward_hydra~sec-13f-hedge-fund-tracker/runs": {
            "post": {
                "operationId": "runs-sync-straightforward_hydra-sec-13f-hedge-fund-tracker",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$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": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/straightforward_hydra~sec-13f-hedge-fund-tracker/run-sync": {
            "post": {
                "operationId": "run-sync-straightforward_hydra-sec-13f-hedge-fund-tracker",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$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": {
                    "managerNames": {
                        "title": "Fund / manager names",
                        "type": "array",
                        "description": "Names of the funds or investment managers to track, e.g. \"Berkshire Hathaway\", \"Scion Asset Management\", \"Pershing Square\". Resolved to SEC filers automatically. If a name matches several filers, the closest is used (check the log).",
                        "items": {
                            "type": "string"
                        }
                    },
                    "managerCiks": {
                        "title": "Manager CIKs (advanced)",
                        "type": "array",
                        "description": "SEC CIK numbers, for exact targeting. Digits only, e.g. 1067983 for Berkshire. Merged with the names above.",
                        "items": {
                            "type": "string"
                        }
                    },
                    "maxReportsPerManager": {
                        "title": "Reports per manager",
                        "minimum": 1,
                        "maximum": 20,
                        "type": "integer",
                        "description": "How many of the most recent 13F reports to pull per manager. 1 = latest quarter only. 4 = the last year.",
                        "default": 1
                    },
                    "topHoldings": {
                        "title": "Top N holdings only",
                        "minimum": 1,
                        "type": "integer",
                        "description": "Only return each manager's largest positions by value, e.g. 10 for their top 10 holdings. Leave empty for the full portfolio."
                    },
                    "minValueUsd": {
                        "title": "Minimum position value (USD)",
                        "minimum": 0,
                        "type": "integer",
                        "description": "Only keep positions worth at least this much. Leave empty for all."
                    },
                    "includeAmendments": {
                        "title": "Include amendments (13F-HR/A)",
                        "type": "boolean",
                        "description": "Include amended reports as well as originals.",
                        "default": true
                    },
                    "maxResults": {
                        "title": "Max results",
                        "minimum": 1,
                        "type": "integer",
                        "description": "Stop after pushing this many holdings in total. Leave empty for no limit."
                    },
                    "contactEmail": {
                        "title": "Contact email (for SEC)",
                        "type": "string",
                        "description": "SEC's fair-access policy asks every automated caller to identify itself with a contact email in the User-Agent. Put yours here. It is only sent to SEC.gov."
                    }
                }
            },
            "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
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```