Latest filingSep 14, 2026Most recent Form 4
NTHI
NEONC TECHNOLOGIES HOLDINGS, INC.
NasdaqHealthcarePharmaceutical Preparations
Insider activity for last month from 08/14 to 09/14. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$59.4M9 buys
Total selling$00 sells
Net open-market+$59.4M2 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period9transactions
- P · Open-market buys · dominant9 · 100%
Activity by reported role
A joint filing can contribute to multiple roles13transactions
- Chief executive officer · dominant7 · 54%
- PRES4 · 31%
- CSO2 · 15%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (2)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeHeshmatpour Amir FCommon Stock · Direct
3,133,000Sep 11, 2026
Chen Thomas CCommon Stock · Direct
583,531Aug 17, 2026
Chen Thomas CCommon Stock · Indirect · By IRA
13,705Aug 18, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 14 → Sep 14
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Top insiders
By absolute net value across the selected period- CC+$350.0k
- HF+$244.1k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
NTHI transaction history
Filters apply within this company and selected period by defaultLatest insider transactions
Form 4 filings from the last 7 days. Click any column to sort; click it again to flip the order.
| ID | Ticker | Insider | Role | Type | Shares | Value | Code | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|
| #210430 | NTHI | Heshmatpour Amir F | CEOPRES | buy | 37.0k | $13.5M | P | 09/14 | 09/11 |
| #15657 | NTHI | Chen Thomas C | CEO | buy | 12.7k | $6.99M | P | 08/21 | 08/18 |
| #15656 | NTHI | Chen Thomas C | CSO | buy | 2.47k | $999k | P | 08/21 | 08/17 |
| #15655 | NTHI | Chen Thomas C | CSO | buy | 33.7k | $13.0M | P | 08/21 | 08/14 |
| #2138 | NTHI | Chen Thomas C | CEO | buy | 2.47k | $999k | P | 08/18 | 08/17 |
| #2137 | NTHI | Chen Thomas C | CEO | buy | 33.7k | $13.0M | P | 08/18 | 08/14 |
| #1758 | NTHI | Heshmatpour Amir F | CEOPRES | buy | 9.00k | $4.98M | P | 08/18 | 08/18 |
| #1325 | NTHI | Heshmatpour Amir F | CEOPRES | buy | 3.00k | $1.31M | P | 08/17 | 08/17 |
| #1324 | NTHI | Heshmatpour Amir F | CEOPRES | buy | 12.0k | $4.54M | P | 08/17 | 08/14 |
NEONC TECHNOLOGIES HOLDINGS, INC. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at NEONC TECHNOLOGIES HOLDINGS, INC.?
Heshmatpour Amir F, CHEN THOMAS C.
When was the latest reported open-market purchase?
Heshmatpour Amir F reported a buy on Sep 11, 2026 valued at $13.5M. Read the SEC filing.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
Net open-market buying in the selected period was $594,057.44. This describes filed transactions, not a bullish rating.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.