Thomas C. Chen
Thomas C. Chen has made 1 open-market purchase worth $40k since Sep 16, 2026, in 1 company. The latest: $40k of NTHI, filed Sep 16, 2026, scored 62 out of 100.
CEO, NEONC TECHNOLOGIES HOLDINGS, INC.
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Purchases
| Filed | Stock | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Sep 16 Form 4 (opens sec.gov) |
NTHINEONC TECHNOLOGIES HOLDINGS, INC. · CEOCEO · 2 insiders buying · Near 52-week low | +79% stake | 62 | $40k 10,798 at $3.70 |
+7.7% | −9.7% |
Track record (hypothetical): a week after the filing, these buys averaged +7.7% (100% up, 1 measured); a month after, −9.7% (0% up, 1 measured).
Questions
What stock has Thomas C. Chen bought?
NTHI (NEONC TECHNOLOGIES HOLDINGS, INC.), all on the open market and reported on SEC Form 4.
When did Thomas C. Chen last buy?
Sep 16, 2026: 10,798 shares of NTHI at $3.70, $40k in all (Form 4 (opens sec.gov)).
Has Thomas C. Chen filed a notice of a planned sale?
Not in the filings on record. A Form 144 is the notice an insider must file before selling restricted or control shares, and it lands on EDGAR before the sale is reported.
Is Thomas C. Chen a routine or an opportunistic buyer?
There isn't enough history to say yet.
Data as of Sep 16, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer