About InsiderAct
InsiderAct is a financial data platform that tracks when corporate executives and directors buy their own company's stock — and surfaces those signals for investors doing their own research.
What is InsiderAct?
InsiderAct is a real-time insider trading signal platform that monitors SEC Form 4 filings — the mandatory public disclosures corporate insiders must file within 2 business days of any stock transaction. It filters for open-market purchases (where insiders spend personal funds), identifies high-conviction patterns like cluster buying and large purchases, and presents them in a format built for investment research. All data is sourced exclusively from SEC EDGAR.
What InsiderAct does
Every time a corporate insider — a CEO, CFO, board director, or major shareholder — buys or sells their company's stock, they must publicly disclose it via SEC Form 4 within two business days. These filings are public record, available on SEC EDGAR, and they've been tracked by institutional investors for decades.
InsiderAct ingests these filings in near real time, filters out the noise (awards, option grants, automatic plan transactions), and focuses on open-market purchases — where insiders voluntarily spend personal capital on their own company's stock. It then identifies high-conviction patterns:
- →Cluster buying: Two or more insiders independently purchasing within a 7–14 day window — the strongest publicly available insider signal.
- →Large insider purchases: Open-market buys of $100,000 or more, representing meaningful personal capital at risk.
- →Buying the dip: Insider purchases made during a stock price decline — signaling confidence that the sell-off is overdone.
- →Blue-chip insider buying: Executive purchases at large-cap companies where insiders are already heavily compensated in equity.
Where the data comes from
All data on InsiderAct originates from SEC EDGAR — the U.S. Securities and Exchange Commission's public filing database. InsiderAct does not use any proprietary or non-public data. Every transaction displayed can be cross-referenced against the original Form 4 filing on EDGAR.
Corporate insiders are required to report transactions within 2 business days under the Sarbanes-Oxley Act of 2002. This means the data is nearly real-time — InsiderAct typically reflects new filings within minutes to hours of SEC publication.
Who uses InsiderAct
InsiderAct is used by individual investors, portfolio managers, and financial researchers who incorporate insider trading data into their investment process. It's designed for people who want to use insider signals as a research starting point — not a replacement for fundamental analysis.
The platform does not provide investment advice. Insider buying is a signal that can be worth investigating; it is not a guarantee of future performance.
Legal basis for insider trading data
All transactions displayed on InsiderAct are legally disclosed public records. Legal insider trading — where executives and directors buy or sell their own company's stock without using material non-public information — is entirely permitted under U.S. securities law, provided they file the required disclosures with the SEC.
InsiderAct tracks only this legal, disclosed activity. It does not track or facilitate illegal insider trading (trading on material non-public information), which is a criminal offense prosecuted by the SEC and the Department of Justice.
See today's insider buying signals
Real-time cluster buys, large purchases, and buying-the-dip signals from public SEC Form 4 filings.
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