Thomas C. Chen is CEO & 10% Owner at NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI). They have made 7 open-market trades across 1 company since 2025, most recently 2026-09-14.
CIK 0001998682
6 open-market purchases totalling $346K since 2025, against 1 sale. Across 6 scored buys the stock is down 29.1% at thirty days, and 30.1 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| NTHI | 24,503 | $67K |
Shares reported on the most recent Form 4, priced at the 2026-09-15 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 50% | 0% | — |
| Avg Move | +1.2% | -29.1% | — |
| Alpha | +1.1% | -30.1% | — |
| Scored | 6 | 6 | 2 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NTHI | BUY | 2026-09-11 | 2026-09-15 | $3.70 | $40K | +2.0% | -14.4% | — |
| NTHI | BUY | 2026-08-18 | 2026-08-20 | $5.49 | $70K | +9.0% | -24.5% | — |
| NTHI | BUY | 2026-08-14 | 2026-08-18 | $3.86 | $140K | -8.1% | -33.9% | — |
| NTHI | BUY | 2026-04-10 | 2026-08-20 | $4.83 | $53K | +9.0% | -24.5% | N/A |
| NTHI | BUY | 2025-05-21 | 2025-05-23 | $7.31 | $40K | +0.0% | -40.2% | -23.0% |
| NTHI | BUY | 2025-05-12 | 2025-05-19 | $7.00 | $3K | -4.6% | -37.3% | -29.2% |
| NTHI | SELL | 2025-03-26 | 2025-06-05 | $24.85 | $975K | -29.3% | -22.7% | -4.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.