Latest filing published 15 Sept 2026 for NEONC TECHNOLOGIES HOLDINGS, INC., €17k.
Filing timeline
BuySaleInsider track record
Across 2 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Thomas C. Chen: trading record in brief
This profile gathers the share dealings of Thomas C. Chen in Neonc Technologies Holdings, Inc. Between 26 March 2025 and 14 September 2026, the trades on record add up to 21 filings.
Both buying and selling appear: 12 purchases worth €421k, against 4 sales worth €1.8M. The net balance comes to €1.4M on the selling side. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Other entries cover 2 share grants. In 2026 alone, the filings show 9 purchases and no sales.
A typical purchase (the median) is worth €17k. Relative to company size, the median is 0.025% of market cap (7 purchases with a known value). 10 out of 10 purchases came within 30 days of a purchase by at least one other insider of the same company. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time.
The latest filing, published on 15 September 2026, reports an open-market purchase of €17k in Neonc Technologies Holdings, Inc. The median gap between a trade and its publication by SEC (Form 4) is 7 days. The legal deadline for a Form 4 is two business days after the transaction. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
Companies and markets linked to Thomas C. Chen
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
- 5,556 shares@ US$3.60Common StockSEC:0001213900-26-100266:0Canonical exit: 10 Dec 2026 (T+90)
- 5,242 shares@ US$3.815Common StockSEC:0001213900-26-100266:1Canonical exit: 13 Dec 2026 (T+90)
- 12,757 shares@ US$5.4870.060% mcap16.4% of flowCommon StockSEC:0001213900-26-092277:0Canonical exit: 16 Nov 2026 (T+90)
- 948 shares@ US$5.16771.1% of flowCommon StockSEC:0001213900-26-092276:0Canonical exit: 9 Jul 2026 (T+90)
- 33,787 shares@ US$3.84770.11% mcap30.6% of flowCommon StockSEC:0001213900-26-092276:2Canonical exit: 12 Nov 2026 (T+90)
- 10,000 shares@ US$4.8011.2% of flowCommon StockSEC:0001213900-26-092276:1Canonical exit: 23 Jul 2026 (T+90)
- 2,472 shares@ US$4.04450.0085% mcap2.3% of flowCommon StockSEC:0001213900-26-092276:3Canonical exit: 15 Nov 2026 (T+90)
- 33,787 shares@ US$3.84770.10% mcap79.6% of flowCommon StockSEC:0001213900-26-091231:0Canonical exit: 12 Nov 2026 (T+90)
- 2,472 shares@ US$4.04450.0078% mcap6.1% of flowCommon StockSEC:0001213900-26-091231:1Canonical exit: 15 Nov 2026 (T+90)
- 4,076 shares0Common StockSEC:0001213900-25-051685:0
- 2,759 shares@ US$7.249987.5% of flowCommon StockSEC:0001213900-25-047511:0Canonical exit: 19 Aug 2025 (T+90)
- 400 shares@ US$7.0012.5% of flowCommon StockSEC:0001213900-25-045595:0Canonical exit: 10 Aug 2025 (T+90)
- 4,076 shares0Common StockSEC:0001213900-25-030062:0
- 4,076 shares0Common StockSEC:0001013762-25-004347:0
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