Company_Context
Basic Materials
Pharmaceutical Preparations
Institutional analysis of internal capital flows based on SEC Form 4 filings.
Signal_Window
Headline metrics use exact calendar-day windows.
5 directional transactions in 180D
Code P purchases and code S sales are measured from 2026.04.21 — 2026.10.17.
+$1000K
Open-market buys minus sales2026.10.04
Latest available filing7
Reporting entities in windowYeung Danny Sheng Wu
$502.0KNo 180D seller
No open-market sales in 180DAnalysis of eligible SEC Form 4 activity for PRE indicates a bullish 180-day signal. The selected window contains transactions from 7 distinct reporting insiders, with aggregate nominal activity of $1.00M.
Open-market purchases minus open-market sales produce a positive net flow of $1.00M. 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 purchase in the selected window was attributed to Yeung Danny Sheng Wu (Director, Chief Executive Officer). 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.
Basic Materials
Pharmaceutical Preparations
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 most recent insider transaction on record was filed on 2026.10.04. InsiderAlpha monitors EDGAR filings and updates this terminal as new Form 4 documents are published.
The selected 180-day window contains 7 distinct reporting insiders with eligible transactions for PRE. This count changes when a different signal window is selected.
Open-market buying volume ($1.00M) currently exceeds selling volume ($0.00M), suggesting net accumulation by insiders.
Performance pending
No matured open-market transaction with calculated market windows is available in the recent sample.
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.