Uncovering the market's hidden narratives through SEC filings, cluster buys, and quantitative data analysis.
Across 74,332 Form 4 exercise events, 37.8% included a same-filing sale and nearly three quarters of those paired events sold approximately all exercised shares.
Research library
9 reports
A study of 66,043 direct-ownership Form 4 sale events finds that the fraction of reported holdings sold adds context, but does not produce a stable 180-day return ranking by itself.
Across 74,332 Form 4 exercise events, 37.8% included a same-filing sale and nearly three quarters of those paired events sold approximately all exercised shares.
A reproducible Form 4 screening workflow uses SEC transaction codes, canonical filings and owner-event aggregation to separate reported purchases from grants, exercises and tax withholding.
An empirical guide to SEC Form 4 codes shows why grants, exercises and tax withholding dominate the raw data—and why code P represents only 3.00% of the release.
A study of 7,804 direct Form 4 purchase events finds that larger position increases had slightly higher raw outcomes, but no stable or monotonic premium.
A matched-company study of 2,948 mature purchase events finds the clearest buy-versus-sale separation in Technology and Healthcare—and little evidence for one universal insider signal.
An evidence-based workflow for turning 1.63 million ownership records into defensible purchase events—without inventing market-cap, benchmark or momentum controls.
A corrected study of 14,485 mature company-day purchase events finds a modest, persistent cluster association—but no 6+ insider magic threshold.
A corrected Form 4 study finds similar post-transaction outcomes for CEO and CFO purchases—and no robust evidence that CFO buys deserve a universal premium.