SEC Form 4 filings with cluster-signal detection.
Form 4 filings with cluster detection. A single insider sale means very little; several insiders buying in the same window is one of the few genuinely informative signals in public filings.
Reach for itConfirming or killing a thesis on a single name.
“The insider activity panel tracks insiders' buys and sells from their filings and flags clusters, where group buying stands out.”
SEC Form 4 filings with cluster-signal detection.
Open itAdd Panel ▸ Stocks ▸ Insider Activity (Form 4 — follows symbol)
Top-left: BullishCluster / BearishCluster / Mixed / Quiet. Cluster fires when 3+ insiders trade the same direction within 30 days. Bullish clusters precede earnings beats more often than not — officers know what's coming.
Each row: filer name + role (CEO/CFO/director/10% owner), transaction type (Buy/Sell/Option Grant/ 10b5-1), shares, dollar amount, % of holdings changed. Sort columns to surface large dollar moves vs incremental disposals.
10b5-1 = pre-scheduled trading plan (less informative; founders often run them on evergreen schedules). Discretionary = officer chose this moment to trade. Discretionary buys are the high-conviction signal.
Type OWN for institutional 13F holdings — are insiders + institutions moving the same way? Type ERN for the next earnings card. Insider-buy + institution-add + cheap IV = three-of-three pre-print setup.
