API Documentation

Welcome to the ApexHolders API. Access real-time institutional and insider data programmatically.

Authentication

Authorization: Bearer YOUR_API_KEY

Endpoints

GET /v1/investors/{id}/holdings

Retrieve current portfolio holdings for a specific fund. Returns JSON array of position objects.

GET /v1/insiders/feed

Stream real-time Form 4 filings with optional filters for transaction size and role.

GET /v1/stocks/{ticker}/holders

Get all institutional holders for a specific stock with ownership percentages and change data.

GET /v1/crowded-trades

Retrieve the list of consensus stocks held by multiple superinvestors.

Need higher rate limits?

Enterprise customers get dedicated infrastructure with up to 10,000 requests per minute.