Shibui Finance gives Claude access to 6.4 million SEC EDGAR filing records spanning 342 form types from 1993 to present. This includes insider transactions (Forms 3, 4, 5), major holder disclosures (Schedule 13D/13G), annual and quarterly reports (10-K, 10-Q), material events (8-K), and proxy statements. Insider transactions (Forms 3/4/5) include parsed transaction detail: shares, prices, transaction codes, and insider identity. Beneficial ownership filings (13D/13G) include resolved filer and target companies. General filings are metadata-level (dates, form types, EDGAR links). You can cross-reference all of it with daily price data, financials, and valuations.
What SEC filing data is available
| Filing type | What it reveals | Coverage |
|---|---|---|
| Form 3 | Initial insider ownership statement (new officers, directors, 10%+ holders) | 1993-present |
| Form 4 | Changes in insider ownership - purchases, sales, grants, exercises | 1993-present |
| Form 5 | Annual summary of ownership changes not reported on Form 4 | 1993-present |
| Schedule 13D | Activist or intent-driven positions above 5% of outstanding shares | 1993-present |
| Schedule 13G | Passive institutional positions above 5% of outstanding shares | 1993-present |
| 10-K / 10-Q | Annual and quarterly financial reports | 1993-present |
| 8-K | Material events (executive changes, M&A, delistings, audit issues) | 1993-present |
| DEF 14A | Proxy statements (compensation, governance, shareholder proposals) | 1993-present |
| S-1 / S-3 | Registration statements (IPOs, secondary offerings) | 1993-present |
Total: 6.4 million records across 342 form types. Every record includes the filing date, form type, filer name, CIK number, accession number, and a link to the original document on EDGAR. Filings are linked to the company's ticker, so you can cross-reference them with price history, fundamentals, and market cap.
Where to start
- Screen the market for insider buying — Insider Buying Stocks scans all 10,000 companies for recent Form 4 purchases, combined with valuation and technical filters.
- Deep-dive on insider transactions — Insider Trading Tracker covers transaction codes, cluster detection, timing accuracy, and data caveats.
- Track activist and major holders — Schedule 13D and 13G explains how to find who holds 5%+ positions and which are activist vs. passive.
- Triage the daily filing feed — Track SEC Filing Activity shows how to scan new 8-Ks by market cap and filter for material events.
Insider ownership: Forms 3, 4, and 5
Insider transactions are among the most watched signals in equity research. When a CEO buys shares on the open market, it carries a different signal than when they sell shares to cover taxes on a vesting grant. Form 4 is the most common insider filing - companies must report changes in officer and director ownership within two business days.
With Shibui connected, you can ask Claude to surface insider activity across the entire market, not just one company at a time.
"Show me companies where three or more insiders filed Form 4 purchases in the last 30 days. Include the company name, market cap, and number of insider filings."
This query scans Form 4 filings across nearly 10,000 companies and filters for clusters of insider buying. A single insider purchase might be noise. Multiple insiders buying at the same company in the same month is a stronger signal.
For the full insider trading guide - cluster buying detection, net buy/sell value, insider timing accuracy, transaction codes, and data quality notes - see Insider Trading Tracker. To screen the whole market for insider buying combined with valuation and technical criteria, see Insider Buying Stocks.
Major holders: Schedule 13D and 13G
When an investor acquires more than 5% of a company's outstanding shares, they must disclose the position. Schedule 13D is filed when the investor intends to influence the company (activist positions). Schedule 13G is the passive equivalent - large institutional holders like index funds and pension funds. The distinction matters: a 13D filing often precedes a proxy fight, board nominations, or strategic proposals.
"Find companies with Schedule 13D filings in the last 90 days. Show the company name, filing date, filer name, and current market cap. Sort by market cap descending."
One important caveat: in 13D and 13G filings, the CIK identifies the filer (the investor who acquired the position), not the target company. The beneficial_ownership table resolves both sides with separate filer and target fields.
For the full guide - tracking activists across companies, 13D vs 13G explained, event studies on post-filing price moves, and the 38 verified activist seed list - see Schedule 13D and 13G Filings.
Filing activity and material events
Beyond insider transactions and major holders, the filing database covers the full range of SEC-required disclosures. 8-K filings are particularly useful for event-driven analysis because they report material events with standardized item codes.
For a detailed walkthrough of tracking filing activity by market cap, filtering 8-K events, and building watchlist monitors, see the filing activity tracking guide.
Coverage and limitations
The general filing index is metadata-level: filing dates, form types, filer names, CIK numbers, and EDGAR document links. It does not contain the full text of filings.
Insider transactions and beneficial ownership go deeper. Forms 3, 4, and 5 are parsed into structured transaction records with shares traded, price per share, transaction codes, insider identity and role, and 10b5-1 flags. Schedules 13D and 13G include resolved filer and target company identities with activist group classification. See the insider trading tracker and 13D/13G guide for details.
Coverage spans 1993 to present with near-real-time updates from the EDGAR filing feed. The database covers NYSE and NASDAQ filers. Foreign private issuers filing on US exchanges are included.
Questions
Can Claude access SEC filing data?
Yes. With Shibui Finance connected, Claude can query 6.4 million SEC EDGAR filing records spanning 342 form types from 1993 to present. Insider transactions (Forms 3/4/5) include parsed transaction detail: shares, prices, transaction codes, and insider identity. Beneficial ownership (13D/13G) includes resolved filer and target companies. General filings are metadata-level: dates, form types, and EDGAR links.
Can I track insider buying and selling with Claude?
Yes. Shibui Finance includes Form 3 (initial ownership), Form 4 (changes in ownership), and Form 5 (annual summaries). You can ask Claude to find recent insider purchases, identify companies with clustered insider buying, or check the full insider transaction history for any company in the database.
Does Shibui Finance have Schedule 13D and 13G data?
Yes. Schedule 13D (activist positions above 5%) and Schedule 13G (passive positions above 5%) filings are included. You can find companies with recent 13D filings to spot activist investor involvement, or track 13G accumulations by institutional holders. Note that the CIK in 13D filings identifies the filer, not the target company.
What SEC filing types does Shibui Finance cover?
Shibui indexes 342 form types from EDGAR, including 10-K, 10-Q, 8-K, Forms 3/4/5, Schedules 13D/13G, proxy statements (DEF 14A), and registration statements (S-1). Insider and ownership filings include parsed transaction detail; general filings are metadata-level (dates, form types, EDGAR links). Coverage spans 1993 to present with 6.4 million total records.
Is there a free tool to analyze SEC filings with AI?
Shibui Finance is a free MCP connector that gives Claude access to 6.4 million SEC filing records including parsed insider transactions and resolved beneficial ownership. You ask questions in plain English and Claude queries the database directly. No API key, no subscription, no code.