How the Signals patterns are detected

Rule: three or more different insiders at the same company bought shares in the open market inside a rolling seven-day window. The feed groups these filings into one row and the Signals card counts clusters by the date of their most recent filing.

Caveat: some clusters follow a scheduled event such as an offering, a lock-up expiry, or a blackout window reopening. The filing dates and transaction codes tell you which.

Rule: a member of Congress disclosed a trade 45 or more calendar days after the trade date. The STOCK Act asks for disclosure within 45 days, so this is the point where the public learned about a trade later than the law intends.

Caveat: late filings have mundane causes, including paperwork, and some trade dates are reported as ranges. A lag is a timing fact about the disclosure, not evidence about the trade.

Rule: a Schedule 13D (a holder passing 5% who does not claim to be passive) or a 13D/A amendment was filed. New filings and amendments are counted separately.

Caveat: filers describe their own intentions and can change them. A 13D says a large stake exists and what the filer currently says about it; nothing more.

Rule: an insider bought shares in the open market with no other Form 4 at the same company in the previous 180 days. The rule only runs when we have at least 180 days of history loaded, so a short data window cannot manufacture a silence.

Caveat: we only see filings we have ingested. New insiders, recent listings, and gaps in coverage all look like silence. Confirm the filer history on EDGAR before treating the gap as meaningful.

Signals are descriptive. They do not rank by expected return, they do not infer motive, and they carry no separate score. Each card links to the pre-filtered feed so you can inspect every constituent filing and its own Greediness Score, which describes filing structure and is not investment advice.