About DataHachi

What is DataHachi?

DataHachi is a platform for tracking institutional investment data through SEC 13F filings. We provide comprehensive visibility into the holdings of major institutional investment managers, making it easy to explore what the world's largest funds are investing in.

Alpha Release Status

⚠️ This is an alpha release. Expect basic functionality only, data may be incomplete, and more features are coming soon.

Key Features

  • Browse top institutional filers by AUM (Assets Under Management)
  • View complete holdings for any filer from their latest 13F filing
  • Look up companies by CIK (Central Index Key) or ticker symbol
  • Access filing data within 24 hours of SEC submission
  • Navigate institutional ownership data through an intuitive interface

Understanding 13F Filings

Form 13F is a quarterly report required by the SEC for institutional investment managers with over $100 million in qualifying assets. These filings provide transparency into the equity holdings of major funds, including:

  • Investment companies (mutual funds, ETFs)
  • Pension funds
  • Insurance companies
  • Investment advisers
  • Banks and bank holding companies

Current Capabilities

✓ Available Now

  • • Top institutional filers list
  • • Individual filer holdings
  • • Company lookup by CIK/ticker
  • • CUSIP resolution
  • • Basic metrics dashboard

🚧 Coming Soon

  • • Search functionality
  • • Historical data comparison
  • • Quarter-over-quarter changes
  • • API access
  • • Advanced filtering

Data Sources

All data is sourced directly from SEC EDGAR filings. We process new 13F filings daily to ensure our database remains current with the latest institutional holdings data.

Technical Architecture

DataHachi is built with modern web technologies for performance and reliability:

  • Frontend: Next.js 15, React 19, TypeScript
  • Data Storage: PostgreSQL, Neo4j, Cloudflare R2
  • Processing: Python data pipeline with daily SEC filing updates
  • Performance: Aggressive caching for sub-3 second page loads

Roadmap

We're actively developing new features. Our roadmap includes:

Near-term (1-2 months)

  • Full-text search across filers and holdings
  • Historical data with quarter-over-quarter comparisons
  • Export functionality for data analysis

Medium-term (3-6 months)

  • RESTful API for programmatic access
  • Email alerts for filing updates
  • Portfolio analysis tools
  • Sector and industry breakdowns

Long-term (6+ months)

  • Political financial disclosures
  • Insider trading data integration
  • Custom watchlists and alerts
  • Mobile applications

Contact & Feedback

We're in active development and welcome your feedback. This alpha release is our foundation for building a comprehensive institutional investment data platform.