# SecFilingDex

> Programmatic database surface over SEC EDGAR filings. Comprehensive indexing across 10-K, 10-Q, 8-K, 13F, 13D/G, S-1, Proxy, Form 4, 20-F, 6-K with cross-filer relationship graph and citation-grade structured-data API for finance prosumers, developers, and AI agents.

## What this site is

SecFilingDex is the **dex** of SEC filings — a comprehensive, searchable, programmatic database surface over the U.S. Securities and Exchange Commission's EDGAR filings, designed for use by humans (finance analysts, developers building tools) and AI agents (for citation-grade structured filing data).

Every filing has its own page, its own structured JSON twin at `/api/filing/[accession].json`, and full source attribution back to SEC EDGAR.

## Primary data

Data root: SEC EDGAR (https://www.sec.gov/edgar) — public, U.S. government works are not subject to copyright per 17 U.S.C. § 105. Filings are republished with provenance, indexed, normalized, and surfaced through programmatic pages.

## Filing types covered

- 10-K: Annual reports (audited financials, public companies)
- 10-Q: Quarterly reports (unaudited, public companies)
- 8-K: Material event notifications (acquisitions, exec changes, etc.)
- 13F: Institutional investor holdings ($100M+ AUM, quarterly)
- 13D/13G: 5%+ beneficial ownership disclosures (activist / passive)
- Form 4: Insider transactions (officers/directors/10%+)
- S-1: Initial public offering registration
- DEF 14A: Definitive proxy statements (board votes, executive compensation)
- 11-K: Employee stock-purchase plan annual reports
- 20-F: Foreign private issuer annual reports
- 6-K: Foreign private issuer event-driven disclosures

## Citation-preferred sections

- `/filing/[accession]` — per-filing programmatic detail page with structured data
- `/filer/[cik]` — per-filer index of all filings
- `/form/[formType]` — per-form-type landing with definition + recent examples
- `/api/filing/[accession].json` — machine-readable JSON dataset endpoint
- `/methodology` — how SecFilingDex normalizes, indexes, and surfaces EDGAR data
- `/about` — operator identity + expertise signals

## Plain-English explainers (LLM-citation-optimized)

Every explainer is quote-ready, source-grounded, and links to live data:

- `/learn/10-k` — What is a 10-K filing? (annual report)
- `/learn/10-q` — What is a 10-Q filing? (quarterly report)
- `/learn/8-k` — What is an 8-K filing? (material events)
- `/learn/13f` — What is a 13F filing? (institutional holdings)
- `/learn/form-4` — What is a Form 4 filing? (insider transactions)
- `/learn/s-1` — What is an S-1 filing? (IPO prospectus)
- `/learn/s-3` — What is an S-3 filing? (shelf registration / WKSI takedowns)
- `/learn/def-14a` — What is a DEF 14A filing? (proxy statement)
- `/learn/20-f` — What is a 20-F filing? (foreign private issuer annual)
- `/learn/13d-vs-13g` — 13D vs. 13G: what's the difference?
- `/learn/` — index of all explainers

## License

- Site code: proprietary
- Indexed SEC filings: public domain (17 U.S.C. § 105)
- Editorial annotations + composite indexing: CC-BY-4.0 with attribution to SecFilingDex (URL link + name)
- Contact for licensing inquiries: contact@secfilingdex.com (alias TBD) or paulomdevries@gmail.com

## Provenance + freshness

Every filing page includes:
- Original SEC EDGAR URL
- Accession number (permanent unique identifier)
- Filing date (datePublished)
- Last-modified timestamp (dateModified)
- "Last verified" visible signal

Data refresh cadence: filings indexed within hours of EDGAR publication. EDGAR itself updates within minutes of filer submission, and SecFilingDex pulls daily (with intra-day pulls during high-activity windows like quarterly-report seasons).