Thomas C Chen insider trades: Neonc Technologies Holdings (NTHI) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Thomas reports to the SEC
Open-market buys and sales
7 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 14, 2026 | NTHI | ↑ Buy | 10,798 | $3.70 | $40K | By IRA | Sep 15, 2026 (1d) |
| Aug 18, 2026 | NTHI | ↑ Buy | 12,757 | $5.49 | $70K | By IRA | Aug 20, 2026 (2d) |
| Aug 17, 2026 | NTHI | ↑ Buy | 36,259 | $3.86 | $140K | Direct | Aug 20, 2026 (3d) |
| Apr 24, 2026 | NTHI | ↑ Buy | 10,000 | $4.80 | $48K | By Defined Benefit Plan | Aug 20, 2026 (118d) |
| Apr 10, 2026 | NTHI | ↑ Buy | 948 | $5.17 | $5K | By IRA | Aug 20, 2026 (132d) |
| May 22, 2025 | NTHI | ↑ Buy | 5,468 | $7.32 | $40K | Direct | May 23, 2025 (1d) |
| May 12, 2025 | NTHI | ↑ Buy | 400 | $7.00 | $3K | Direct | May 19, 2025 (7d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other NTHI insiders
Open-market trades in the last 12 months
About Thomas C Chen's insider trades
Thomas C Chen is CEO at Neonc Technologies Holdings (NTHI). Since May 12, 2025, Thomas has reported 7 open-market purchases worth $346K and no sales on SEC Form 4. In the last 12 months: 5 buys ($303K).
Their filings also include other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every NTHI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.