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buyModerate cluster of 3

Thomas C Chen bought $2,800 of NTHI

CEO at NEONC TECHNOLOGIES HOLDINGS, INC.. 400 shares at an average of $7.00, traded May 12, 2025, filed May 19, 2025.

Conviction score
43
Value
$2,800
400 shares
Holdings after
546,200
+0% from before
From 52-week low
+40%
low $4.36, close $6.12
From 52-week high
-63%
high $16.55, as of May 12, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $3k at market
    0
  • Relative to holdings
    Under 1% of holdings (0.1%)
    -5
  • Price context
    63% below the 52-week high
    +8
  • Cluster
    3 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -35.9%, 3m -27.7%, 6m +7.1%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

NTHIOct 12, 2026 · close 2.73
Since filing May 19, 2025: -63.3%SPY +33.0% · excess -96.2%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001213900-25-045595, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 12, 2025POpen-market purchase
Common Stock
+400$7.00$2,800546,200May 19, 2025

Related signals

Other insiders at NEONC TECHNOLOGIES HOLDINGS, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
2Weak
NTHIsell10b5-1
NEONC TECHNOLOGIES HOLDINGS, INC.
Keithly Garnett
CFO
$17k
5,000 shares
-2%
56Moderate
NTHIbuy 3
NEONC TECHNOLOGIES HOLDINGS, INC.
Thomas C Chen
CEO
$40k
10,798 shares
+79%
32Weak
NTHIbuy 3
NEONC TECHNOLOGIES HOLDINGS, INC.
Keithly Garnett
CFO
$1,001
257 shares
+0%
56Moderate
NTHIbuy 3
NEONC TECHNOLOGIES HOLDINGS, INC.
Amir F Heshmatpour
CEO, President
$175k
50,000 shares
+2%
51Moderate
NTHIbuy 3
NEONC TECHNOLOGIES HOLDINGS, INC.
Amir F Heshmatpour
CEO, President
$136k
37,000 shares
+1%
64Notable
NTHIbuy 2
NEONC TECHNOLOGIES HOLDINGS, INC.
Thomas C Chen
CEO
$70k
12,757 shares
+1346%
58Moderate
NTHIbuy 4
NEONC TECHNOLOGIES HOLDINGS, INC.
Thomas C Chen
Chief Scientific Officer
$193k
47,207 shares
-
55Moderate
NTHIbuy 2
NEONC TECHNOLOGIES HOLDINGS, INC.
Thomas C Chen
CEO
$140k
36,259 shares
+7%
43Moderate
NTHIbuy 2
NEONC TECHNOLOGIES HOLDINGS, INC.
Amir F Heshmatpour
CEO, President
$50k
9,000 shares
+0%
38Weak
NTHIbuy 2
NEONC TECHNOLOGIES HOLDINGS, INC.
Amir F Heshmatpour
CEO, President
$59k
15,000 shares
+0%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Thomas C Chen bought $2,800 of NTHI | InsiderTell