Thomas C. Chen - 11 Sep 2026 Form 4 Insider Report for NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI)

Reporting relationship
CEO, Director, 10%+ Owner
Issuer ticker
NTHI
Reported as of
11 Sep 2026
Net transaction value
+$40,000
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
15 Sep 2026, 20:45:25 UTC
Prior SEC filing
20 Aug 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/S/ THOMAS C CHEN
Filing notes and source

Key filing fact

Thomas C. Chen filed Form 4 for NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) on 15 Sep 2026.

Key facts

  • This page summarizes Thomas C. Chen's Form 4 filing for NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI).
  • 2 reported transactions and 0 derivative rows are listed below.
  • Accepted by SEC: 15 Sep 2026, 20:45.

Change

  • Previous filing in this sequence was filed on 20 Aug 2026.
  • Current net transaction value: +$40,000.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001998682 Primary reporting owner

CHEN THOMAS C

Relationship
CEO, Director, 10%+ Owner
Address
23975 SORRENTO PARK, SUITE 205, CALABASAS
Signature
/S/ THOMAS C CHEN
Signature date
14 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NTHI transaction

Common Stock

Purchase

Transaction value
$20,002
Shares
+5,556
Change %
+41%
Price
$3.60
Shares after
19,261
Date
11 Sep 2026
Ownership
By IRA
NTHI transaction

Common Stock

Purchase

Transaction value
$19,998
Shares
+5,242
Change %
+27%
Price
$3.82
Shares after
24,503
Date
14 Sep 2026
Ownership
By IRA
NTHI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
583,531
Date
11 Sep 2026
Ownership
Direct
Footnotes
F1
NTHI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
261,242
Date
11 Sep 2026
Ownership
By HCWG LLC
Footnotes
F2
NTHI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
888,148
Date
11 Sep 2026
Ownership
By NeuCen Biomedical Co. Ltd.
Footnotes
F3
NTHI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
2,833,961
Date
11 Sep 2026
Ownership
By TR Chen Third Family Limited Partnership.
Footnotes
F4
NTHI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
93,253
Date
11 Sep 2026
Ownership
By Tien Duan Chen Trust
Footnotes
F5
NTHI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
948
Date
11 Sep 2026
Ownership
By Defined Benefit Plan
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Includes shares of common stock held by certain members of Reporting Person's immediate family of which Reporting Person disclaims beneficial ownership except to the extent of his pecuniary interest, if any, therein.

Footnote F2

Such shares represent only Reporting Person's percentage interest in HCWG LLC.

Footnote F3

Shares held by NeuCen Biomedical Co. Ltd. ("NeuCen"). NeuCen is owned in part by Reporting Person's spouse. Reporting Person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest, if any, therein.

Footnote F4

Shares held by T. R. Chen Third Family Limited Partnership, a NV limited partnership, of which Reporting Person and his spouse are the general partners with sole voting and dispositive power. Reporting Person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest, if any, therein.

Footnote F5

Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest, if any, therein.

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