See What Insiders See. Find What Others Miss.

When corporate insiders buy or sell stock, they're required to file a Form 4 with the SEC - usually within two business days. These filings are public record, and several free tools aggregate them into searchable databases. But free tools stop at the raw filing: who bought, how many shares, at what price. That's useful, but it's just the starting point. WiseSignal adds a contextual intelligence layer on top: up to 70 financial data points per transaction, AI-driven company research that tells you the full story behind each purchase, and transparent performance tracking on any filter combination. It's the difference between seeing a trade and understanding why it matters.

Not all insider transactions are the same. SEC filings include stock option exercises, equity grants, preferred share transactions, indirect holdings through trusts or funds, and purchases at special pre-arranged prices - none of which clearly signal an executive's personal conviction. WiseSignal focuses exclusively on direct open-market purchases of common stock - where an executive uses their own money to buy shares from the market at the current price, just like any other investor. That's the purest expression of insider confidence: personal capital at risk, on the same terms as everyone else.

Yes - it's one of the most studied signals in finance. Seyhun at Michigan found that insiders consistently buy before abnormal price rises, with top executives (CEOs, CFOs, directors) being significantly more predictive than lower-level insiders or large shareholders. Jeng, Metrick, and Zeckhauser at Harvard calculated that insider purchases beat the market by roughly 11% per year. The signal has been confirmed across decades of data, multiple markets, and different methodologies. But - and this is critical - not every insider purchase outperforms. Research shows that only high-conviction purchases produce strong excess returns, while low-conviction insider purchases can actually have negative returns. Context - who bought, how much, the company's financial setup, the price action - determines whether an insider purchase is worth your attention. That separation of signal from noise is exactly what WiseSignal is built to provide.

WiseSignal tracks every qualifying insider purchase — that's a transaction. A strategy is an investment thesis applied as selection criteria: each one defines a specific pattern worth tracking, like insider buying in declining stocks with strong earnings. A signal is a transaction that passes a strategy's criteria. For example, the Baseline Strategy screens for transaction size, insider role, and company fundamentals. Out of thousands of transactions, only a fraction qualify. Explore our curated strategies or build your own filter combinations to define what counts as a signal for you.

Our public tracker shows every curated signal with full performance history: wins and losses, no cherry-picking. Performance is tracked from the moment the insider files the transaction with the SEC - not from a hand-picked entry point. Filter any combination and see aggregated returns. Past performance does not guarantee future results, but the data is fully transparent. The product is the proof.

Every purchase comes with a full research report covering fundamentals, technicals, insider activity patterns, catalysts, and company overview. Each report is generated from a rich context pack — up to 12,000 tokens of structured financial data assembled from multiple sources: financial metrics, price history, earnings transcripts, insider activity summaries, qualitative tags, and recent news. The model receives the complete analytical picture in a single pass, so the research is coherent and grounded in real data.

Yes — we offer a 14-day free trial so you can explore the full product before deciding. You'll have complete access to every feature: the enriched transaction feed, AI research reports, all filters and tags, performance tracking, and curated strategies. Try it with your own investment thesis and see the value firsthand.

WiseSignal is a financial data and research publication. We provide data, contextual enrichment, and AI-driven research about direct purchase insider transactions on US stock market. The data is available to all subscribers on equal terms, for informational purposes only. We do not provide personalised investment advice, manage assets, or execute trades. Investment decisions are always yours. See our Terms of Service for full details.

Insider purchases are a well-researched signal, but no signal works every time. Not every transaction is the same - that's exactly why understanding the full context behind each trade matters so much. Our public strategies show both winners and losers, including loss rates and average returns on every selection, so you see the complete picture - no cherry-picking. Performance is tracked from SEC filing date, so you see exactly what real-time followers would have experienced. We recommend using WiseSignal as your starting point for research, then deepening your analysis with other direct sources before making any trade. That's the responsible approach to stock investing. Markets are inherently uncertain, past performance does not guarantee future results, and there is always risk. WiseSignal helps you make more informed decisions; it does not eliminate risk.