CHEN THOMAS C

Executive buyer

Director, CEO, 10% Owner · NEONC TECHNOLOGIES HOLDINGS, INC.

Every open-market stock purchase CHEN THOMAS C has reported to the SEC on Form 4 that met our signal bar, parsed straight from the filings. This page tracks where those buys landed inside insider clusters and how the prices paid compare to where the stock trades now.

Total bought
$302.9K
Open-market buys
7
Companies
1
Last buy
Sep 14, 2026

Where the buys stand today

Cluster participation

Qualifying buys grouped with other insiders buying the same stock — the pattern this site exists to catch.

All reported buys

DateTickerSharesPriceValueFiling
Sep 14, 2026
NTHIcluster
5,242$3.82$20.0KSEC ↗
Sep 11, 2026
NTHIcluster
5,556$3.60$20.0KSEC ↗
Aug 18, 2026
NTHIcluster
12,757$5.49$70.0KSEC ↗
Aug 17, 2026
NTHIcluster
2,472$4.04$10.0KSEC ↗
Aug 14, 2026
NTHIcluster
33,787$3.85$130.0KSEC ↗
Apr 24, 202610,000$4.80$48.0KSEC ↗
Apr 10, 2026948$5.17$4.9KSEC ↗

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About this data

Figures are parsed from CHEN THOMAS C's Form 4 filings on SEC EDGAR (CIK 1998682) and cover open-market purchases (transaction code P) — grants, option exercises, and sales are excluded, which is why totals here can differ from raw filing counts. Every row links to its source document.

This page is informational and reflects public filing data. It is not investment advice.