Company_Context
Technology
Computer Storage Devices
Latest SNDK SEC Form 4 activity, net insider flow, and the largest recent buyer or seller in one live view.
Signal_Window
Headline metrics use exact calendar-day windows.
74 directional transactions in 180D
Code P purchases and code S sales are measured from 2026.04.21 — 2026.10.17.
-$131.3M
Open-market buys minus sales2026.10.01
Latest available filing7
Reporting entities in windowNo 180D buyer
No open-market buys in 180DGoeckeler David
$105.0MDuring the selected 180-day window, SNDK insider trading registers a bearish signal with -$131.3M in net open-market flow across 7 reporting insiders. The latest available Form 4 was recorded on 2026.10.01.
Open-market purchases minus open-market sales produce a negative net flow of $131.33M. Open-market executions represent the majority of measured nominal activity in this window, making the directional flow more representative of voluntary trading activity.
The largest open-market sale in the selected window was attributed to Goeckeler David (Director, Chairman & CEO). Form 4 activity provides useful ownership context, but it should not be treated as a standalone prediction of future price performance.
Enriched_Research_Context
These indicators use normalized SEC roles, issuer metadata, cluster detection and post-filing market prices already calculated by the data pipeline.
Technology
Computer Storage Devices
0
Clustered open-market purchase records in the recent filing sample.
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Recent_Filing_History
This table shows recent filing history and is not restricted by the selected 180D headline signal window.
The selected 180-day window contains 7 distinct reporting insiders with eligible transactions for SNDK. This count changes when a different signal window is selected.
Open-market selling volume ($131.33M) currently exceeds buying volume ($0.00M), indicating net liquidation by insiders.
No eligible open-market purchases were reported for SNDK during the last 180 calendar days.
Shek Bernard
OPEN_MARKET_SALEGeneral Counsel · 2026.06.03
30D
-4.8%
90D
PENDING
180D
PENDING
Performance uses the latest matured open-market record in this sample. It describes subsequent market movement and does not imply that the filing caused the price change.