13D Watch · Overlap Screener

Filter the live activist filing set by activist intent, insider activity, short crowdedness, and institutional consensus. The four-way overlap is the differentiator — most tools surface one signal in isolation. Source data refreshes every few minutes.

Filers who previously held an issuer passively (13G) and have now filed a 13D — a classic signal of an activist intent shift. Last 180 days.

Issuers where 3+ distinct insiders made open-market purchases (Form 4, P-code) inside the last 90 days. Clustered insider buying is one of the strongest public signals there is.