Transaction · 0001213900-26-092276

Chen Thomas C

CHEN THOMAS C, CSO, reported an open-market or private purchase at NEONC TECHNOLOGIES HOLDINGS, INC. involving 2472.000000 shares for an estimated $9998.00. Reported holdings after the transaction were 583531.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market buySEC transaction code PCSO
NTHINEONC TECHNOLOGIES HOLDINGS, INC.
Trade date
Aug 17, 2026
Filing date
Aug 21, 2026
View on SEC Insider profile
Disclosed value$9.99kShares × reported price
Shares traded2.47k$4.04 per share
Holdings after583kDirect
% of reported position traded0.43%This security and ownership context
How reported position traded is calculated

Shares purchased ÷ (holdings after − shares purchased). Estimated position before: 581,059 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Filing warnings

Notes recorded with this filing
1 warning
amended filingThis transaction comes from an amended Form 4 filing.

NTHI price since this filing

Daily closing prices, with the filing date and available return windows
NTHI · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -25.9%1w ago -25.1%1d ago -9.6%
Returns since7d +0.4%30d -30.2%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Buy
Code P
Identifier
0001213900-26-092276
Common Stock
Transaction date
Aug 17, 2026
Filed Aug 21, 2026, 01:15 AM · 4d delay
Shares
2,472 sh
$4.04 per share
Estimated value
$9.99k
Computed from shares × price
Holdings after
583,531 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Amended Filing Cluster Buy Director Buy Direct Ownership Repeat Buyer 10% Owner Buy
Filing-only score

+40 points

Compact filing score computed from stored Form 4 facts. Version v1.

Strong filing signal

This filing has a high positive filing-only score. It may deserve closer research, but it is not an investment recommendation.

How this score is calculated
  • open_market_purchase+12 points

    transaction_code = P

    Code P is a discretionary open-market purchase.
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • director_buy+6 points

    is_director = true

    Director open-market purchase.
  • cluster_buy+14 points

    cluster-buy signal matched

    Multiple insiders bought within the configured window.
  • repeat_buyer+8 points

    repeat-buyer signal matched

    Same insider bought again within the configured window.
  • amended_filing-6 points

    is_amendment = true

    Amended filing: the original transaction may have been restated.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Scientific Officer

Officer YesDirector Yes10% YesOther No
Footnotes & amended
  1. F1

    The aggregate number of shares of Issuer's common stock (the "Shares") purchased by the Reporting Person on the same day at different prices.

  2. F2

    Represents the weighted average purchase price. The Shares were purchased at prices ranging from $5.165 to $5.1722 per share, inclusive. Full information regarding the number of Shares sold at each pr…

  3. F3

    Represents the weighted average purchase price. The Shares were purchased at prices ranging from $3.2299 to $4.0993 per share, inclusive. Full information regarding the number of Shares sold at each p…

  4. F4F7F8F9(4 footnotes)

    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,…

  5. F5

    Represents the weighted average purchase price. The Shares were purchased at prices ranging from $4.04 to $4.1699 per share, inclusive. Full information regarding the number of Shares sold at each pri…

  6. F6

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

Amended filing · 0001213900-26-092276
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