FilingSpy

FilingSpy turns public SEC filings into read-only tools for answering questions about companies, funds and insiders, with every figure tied to the filing it came from.

What you can ask:

• Superinvestor portfolios: quarterly 13F holdings and changes for about 100 tracked investors (Berkshire Hathaway, Pershing Square, Duquesne and others), position history, and side-by-side comparisons.
• Consensus across funds: which stocks the most tracked funds bought or sold in a quarter, and which tracked investors hold a given stock.
• Insider trades: Form 3, 4 and 5 filings by officers, directors and 10% owners, separating open-market buys and sales from awards and pre-planned (10b5-1) trades, plus a market-wide insider screen.
• Financial statements as filed: revenue, income, cash flow and other reported metrics by quarter or year, and the full statements and notes from 10-K, 10-Q and 20-F filings.
• Filing text: read or search sections such as risk factors, MD&A and legal proceedings; list 8-K, 6-K and proxy filings with summaries of events and executive pay.

Limitations: data comes only from SEC filings, so 13F portfolios are delayed by up to 45 days after quarter end and cover only the US-listed securities funds must report (no shorts or most foreign holdings). FilingSpy does not provide real-time prices, place trades, access brokerage accounts, or give investment advice. Requires signing in with a FilingSpy account.