form4.app

What It Is

Form4 is a research-oriented data platform focused on U.S. stock insider trading, with core data sourced from public SEC Form 4 filings. It emphasizes real-time filings, AI-powered signal grading, and claims to conduct research based on 1.6 million insider trades. Rather than a marketing or SEO tool, it is positioned more as a financial data intelligence and investment research product, suitable for monitoring buying and selling activity by executives, directors, and other insiders at listed companies.

Core Features and Data

The platform offers sections such as Today's Trades, Research, and Explore, and highlights recent notable insider buys, including the insider’s name, ticker, rating, transaction amount, and filing date. A key feature is its star/strength rating system for trades, along with three disclosed research strategies: Quality + Momentum, Deep Reversal, and 10b5-1 Surprise. It also lists metrics such as Sharpe ratio, win rate, trade frequency, and holding period. It is worth noting that the terms clearly state that ratings, tiers, signals, and clustering analyses are statistical models based on historical data, and do not represent predictions or guaranteed returns.

Pricing and Trial

The site clearly offers a 7-day free trial with no credit card required, lowering the barrier for first-time users. The paid product is Form4 Pro, billed as a recurring subscription via Stripe. Users can cancel in account settings, and refunds are generally not provided. However, the scraped text does not disclose specific pricing, plan differences, or annual billing discounts, so value for money can only be assessed preliminarily and cannot be precisely compared with similar services.

Pros and Cons

The advantages are that the data source is clear and comes from public SEC filings; coverage reaches 1.6 million insider trades; real-time filings and AI ratings help users quickly filter signals; and the platform transparently presents historical strategy metrics, making it easier to evaluate the methodology. The drawbacks are also clear: specific pricing is missing; only email support is visible, with no API, documentation, or enterprise services found; scraping and automated data extraction are prohibited, making it unsuitable for teams that need large-scale secondary data processing; and the platform also emphasizes that it is not an investment adviser.

Who It’s For and Access from China

Form4 is better suited to individual investors, small trading teams, quantitative researchers, and financial data analysts who track insider trading in U.S. stocks. Access and payment conditions for users in China are not stated in the text, so china_access can only be considered unknown. Payments are processed via Stripe and may depend on regional bank card support. Alternatives worth watching include SEC EDGAR, OpenInsider, Quiver Quantitative, and Finviz Insider Trading.