Research Lab

Test insider buying against history. Every tool here uses the same SEC Form 4 filings and the same 16,899 measured purchases since 2020, shows losses as well as wins, and links back to the filings.

Not sure where to start? How did buys like this do? Find buys that match my idea Compare two stocks

Test a setup

Pick the traits of an insider buy and see how the same kind of buy did before.

Setup Odds How past insider buys like a given one did vs the S&P 500 16,899 buys since 2020 · 46% beat the S&P Open → Backtester Test a buying idea on years it has never seen Built on data before Apr 2023, checked after Open → Plain-English screener New Type "CEO bought over $250K after a 20% drop" and get the list 7,997 buys from the last 12 months Open → Insider Gauge Is the whole market's insider buying high or low right now? Now 69/100 Open →

Follow outcomes

What actually happened after insiders bought, including the losers.

After the buy New What happened 7, 30 and 90 days after recent big buys, losses included 20 of 44 beat the S&P over 30 days Open → Compare two stocks New Insider buying, selling and past outcomes side by side 4,101 stocks Open → Scorecard Every cluster buy we flagged, wins and losses Nothing removed after the fact Open → Top insiders Whose past buys beat the market Ranked on completed buys only Open →

Explore

Connections, questions and a daily game built on the same data.

Board links Which companies share directors and executives 1,480 insiders link 1,462 companies Open → Ask the filings Plain answers from the data, with the numbers behind them 10 questions, rebuilt every morning Open → Insider Call Daily game: 5 real buys, guess which beat the market New round every day Open → Insiders & earnings Do insiders buy before good results? Every quarterly results filing Open → Short selling Insiders buying while shorts pile in Daily short volume from FINRA Open →

Latest research notes

Findings written up from the data, with sources.

All research notes → · Methodology →

History, not predictions. Nothing here is investment advice.