Chen Thomas C
- SEC CIK
- 0001998682
In the past year, 3 open-market purchase filings worth $302.9K and no sales.
Current role at each company
- NTHI Neonc Technologies Holdings, Inc.CEOas of Sep 15, 2026
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- $302.9K
- 3 filings
- Sold
- –
- 0 filings
- Net
- +$302.9K
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Chen Thomas C as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 (view filing)8:45 PM ET | Sep 11-14 | 4 days | Chen Thomas CCEO | PPurchase | +10.8K | $3.70 | +$40.0K | +78.8%24.5K after | 2 lots |
| Aug 20, 2026 (view filing)9:15 PM ET | Aug 18 | 2 days | Chen Thomas CCEO | PPurchase | +12.8K | $5.49 | +$70.0K | +1,345.7%13.7K after | |
| Aug 20, 2026 (view filing)9:15 PM ET | Apr 10-24 | 132 days | Chen Thomas CChief Scientific Officer | PPurchase | +10.9K | $4.83 | +$52.9K | New position10.0K after | Amended2 lots |
| Aug 20, 2026 (view filing)9:15 PM ET | Aug 14-17 | 6 days | Chen Thomas CChief Scientific Officer | PPurchase | +36.3K | $3.86 | +$140.0K | +6.6%583.5K after | Amended2 lots |
| Jun 5, 2025 (view filing) | Mar 26 | 71 days | Chen Thomas CCEO | SSale | −39.2K | $24.85 | −$975.1K | −13.1%261.2K after | Amended2 lots |
| May 23, 2025 (view filing) | May 21-22 | 2 days | Chen Thomas CCEO | PPurchase | +5.47K | $7.31 | +$40.0K | +1.0%551.7K after | 2 lots |
| May 19, 2025 (view filing) | May 12 | 7 daysLate | Chen Thomas CCEO | PPurchase | +400 | $7.00 | +$2.80K | +0.1%546.2K after |