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A concise index of new universal lessons. Sent only when there is something new; never tips, signals or recommendations.

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Disclaimer: Ironclad Research provides educational content only. Nothing on this platform is financial advice, a recommendation, or an offer to buy or sell any security. Always do your own research and consider professional advice before making financial decisions.

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SEC Form 490-day public windowUpdated nightly

Insider activity, without the mythology.

Explore clean open-market purchases and sales reported by company insiders. Ironclad shows what was disclosed, how quickly it was filed and where purchases clustered — without turning filings into a recommendation or price prediction.

Public recency

Company totals and qualifying clusters cover the trailing 90 days.

Clean comparisons

Purchases and sales use the same non-derivative, zero-quality-flag rules.

No signals

No scores, rankings, alerts or claims about what a share price will do next.

Recent disclosures

Clustered open-market purchases

A cluster requires at least two insiders, purchases within 30 days and at least $50,000 in aggregate. The date shown is when the final constituent filing became public.

Read the method

No qualifying recent clusters yet.

The public feed covers qualifying clustered purchases disclosed in the latest 90-day window. It will update automatically after the next nightly filing run finds one.

INS-001 result

We tested the popular claim.

Across 5,849 clustered purchases, mean 21-day market-adjusted return was −0.93% (95% CI −1.89% to +0.08%). The interval includes zero: no reliable predictive effect was established.

See the preregistration, amendment and full result

Premium archive

The public picture, then the filing detail.

Public pages show exact recent company aggregates and qualifying clusters. Premium company history adds the full archive, named insiders, roles, share counts, prices, filing dates and disclosure lag — rendered securely after the membership check.

See archive access details

Source data: SEC Form 4 non-derivative open-market purchases and sales that pass Ironclad’s stated quality rules. Figures describe reported activity and are provided for education and research only — never as financial advice or a recommendation.