Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

NEONC TECHNOLOGIES HOLDINGS, INC.

NTHI · Nasdaq · CIK 0001979414 · Healthcare · Biotechnology

INSIDER SIGNAL

73.7 / 100

4 buyers · 19 purchase transaction lines · $996.6K gross purchase

WHY THIS SIGNAL?

Buyer breadthStrong
Purchase sizeModerate
RoleModerate
RecencyModerate
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+28.0 / 35
Purchase size+17.1 / 25
Role+13.0 / 20
Recency+5.8 / 10
Conviction+9.8 / 10

What is holding the score back?

  • ⚠ Role scores low · most senior buyer: President (CEO, chair and 10% owners score lowest)
  • ✓ Cluster breadth is broad · 4+ insiders

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Heshmatpour Amir FPresident
●●●●●●●●●
CHEN THOMAS CCEO
●●●●●●●●
GARNETT KEITHLYCFO
●▼
Neman-Ebrahim YoushaChief Clinical Officer
●
SHOMALI NASIMDirector
○
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS4
PURCHASE CONCENTRATION56%Largest buyer: Heshmatpour Amir F · $554.9K
CLUSTER BUYING · 15D3 insidersPeak activity: 2026-04-23–2026-05-01

Roles in the peak window: Chief Clinical Officer, Chief Scientific Officer, President. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

73.7 / 100

Latest recorded score

↓ -0.2 ptsversus the previous recorded snapshot
  1. 74.4
  2. 74.2
  3. 74.1
  4. 73.9
  5. 73.7

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

30Purchases
1Sales
2Other Form 4 lines
22SEC filings · 365 days
BUYING19 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER1 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-24.0%
3M
-35.6%
6M
-48.9%
12M
-77.0%

Volatility & liquidity

Volatility
136.3%
Beta
—
Avg daily value
USD 553,904

Valuation

Market cap
USD 72.1M
P/E
—

Fundamentals

Profit margin
—
ROE
—
Industry
Biotechnology

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-10 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
757,739
Previous report
522,311
Avg daily volume
192,992
Days to cover
3.9

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-15Heshmatpour Amir FPurchase (P)Common Stock35,000USD 3.30USD 115,500SEC filing ↗
2026-09-14Heshmatpour Amir FPurchase (P)Common Stock15,000USD 3.96USD 59,400SEC filing ↗
2026-09-14GARNETT KEITHLYPurchase (P)Common Stock257USD 3.89USD 1,000SEC filing ↗
2026-09-14CHEN THOMAS CPurchase (P)Common Stock5,242USD 3.82USD 20,024SEC filing ↗
2026-09-11CHEN THOMAS CPurchase (P)Common Stock5,556USD 3.60USD 20,002SEC filing ↗
2026-09-11Heshmatpour Amir FPurchase (P)Common Stock37,000USD 3.67USD 135,790SEC filing ↗
2026-08-18CHEN THOMAS CPurchase (P)Common Stock12,757USD 5.49USD 70,036SEC filing ↗
2026-08-18Heshmatpour Amir FPurchase (P)Common Stock9,000USD 5.54USD 49,860SEC filing ↗
2026-08-17CHEN THOMAS CPurchase (P)Common Stock2,472USD 4.04USD 9,987SEC filing ↗
2026-08-17CHEN THOMAS CPurchase (P)Common Stock2,472USD 4.04USD 9,987SEC filing ↗
2026-08-17Heshmatpour Amir FPurchase (P)Common Stock3,000USD 4.37USD 13,110SEC filing ↗
2026-08-14CHEN THOMAS CPurchase (P)Common Stock33,787USD 3.85USD 130,080SEC filing ↗
2026-08-14CHEN THOMAS CPurchase (P)Common Stock33,787USD 3.85USD 130,080SEC filing ↗
2026-08-14Heshmatpour Amir FPurchase (P)Common Stock12,000USD 3.79USD 45,480SEC filing ↗
2026-05-01Heshmatpour Amir FPurchase (P)Common Stock10,000USD 4.16USD 41,600SEC filing ↗

Form 4 evidence

33 transaction lines in the latest 365-day window; 101 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-15GARNETT KEITHLYSale (S)Common Stock5,000USD 3.36USD 16,800SEC filing ↗
2026-09-15Heshmatpour Amir FPurchase (P)Common Stock35,000USD 3.30USD 115,500SEC filing ↗
2026-09-14Heshmatpour Amir FPurchase (P)Common Stock15,000USD 3.96USD 59,400SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-15GARNETT KEITHLYSale (S)Common Stock5,000USD 3.36USD 16,800SEC filing ↗
2026-09-15Heshmatpour Amir FPurchase (P)Common Stock35,000USD 3.30USD 115,500SEC filing ↗
2026-09-14Heshmatpour Amir FPurchase (P)Common Stock15,000USD 3.96USD 59,400SEC filing ↗
2026-09-14GARNETT KEITHLYPurchase (P)Common Stock257USD 3.89USD 1,000SEC filing ↗
2026-09-14CHEN THOMAS CPurchase (P)Common Stock5,242USD 3.82USD 20,024SEC filing ↗
2026-09-11CHEN THOMAS CPurchase (P)Common Stock5,556USD 3.60USD 20,002SEC filing ↗
2026-09-11Heshmatpour Amir FPurchase (P)Common Stock37,000USD 3.67USD 135,790SEC filing ↗
2026-08-18CHEN THOMAS CPurchase (P)Common Stock12,757USD 5.49USD 70,036SEC filing ↗
2026-08-18Heshmatpour Amir FPurchase (P)Common Stock9,000USD 5.54USD 49,860SEC filing ↗
2026-08-17CHEN THOMAS CPurchase (P)Common Stock2,472USD 4.04USD 9,987SEC filing ↗
2026-08-17CHEN THOMAS CPurchase (P)Common Stock2,472USD 4.04USD 9,987SEC filing ↗
2026-08-17Heshmatpour Amir FPurchase (P)Common Stock3,000USD 4.37USD 13,110SEC filing ↗
2026-08-14CHEN THOMAS CPurchase (P)Common Stock33,787USD 3.85USD 130,080SEC filing ↗
2026-08-14CHEN THOMAS CPurchase (P)Common Stock33,787USD 3.85USD 130,080SEC filing ↗
2026-08-14Heshmatpour Amir FPurchase (P)Common Stock12,000USD 3.79USD 45,480SEC filing ↗
2026-07-10SHOMALI NASIMAward / grant (A)Common Stock50,000USD —USD —SEC filing ↗
2026-05-01Heshmatpour Amir FPurchase (P)Common Stock10,000USD 4.16USD 41,600SEC filing ↗
2026-04-28Heshmatpour Amir FPurchase (P)Common Stock10,000USD 4.52USD 45,200SEC filing ↗
2026-04-24CHEN THOMAS CPurchase (P)Common Stock10,000USD 4.80USD 48,000SEC filing ↗
2026-04-23Neman-Ebrahim YoushaPurchase (P)Common Stock500USD 4.88USD 2,440SEC filing ↗
2026-04-23Heshmatpour Amir FPurchase (P)Common Stock10,000USD 4.90USD 49,000SEC filing ↗
2026-04-10CHEN THOMAS CPurchase (P)Common Stock948USD 5.17USD 4,901SEC filing ↗
2026-04-10Heshmatpour Amir FPurchase (P)Common Stock10,000USD 4.90USD 49,000SEC filing ↗
2026-04-09SUH, DAVID JR.Purchase (P)Common Stock200USD 5.00USD 1,000SEC filing ↗
2026-04-09Heshmatpour Amir FPurchase (P)Common Stock5,000USD 5.19USD 25,950SEC filing ↗
2026-04-08Heshmatpour Amir FPurchase (P)Common Stock10,000USD 5.61USD 56,100SEC filing ↗
2026-04-06Heshmatpour Amir FPurchase (P)Common Stock5,000USD 6.32USD 31,600SEC filing ↗
2026-04-02Heshmatpour Amir FPurchase (P)Common Stock20,000USD 6.09USD 121,800SEC filing ↗
2025-11-24Heshmatpour Amir FPurchase (P)Common Stock6,000USD 6.51USD 39,060SEC filing ↗
2025-11-21Heshmatpour Amir FPurchase (P)CommonStock20,000USD 5.98USD 119,600SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerNTHI
CIK0001979414
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2834 Pharmaceutical Preparations
ExchangeNasdaq

Data coverage

Local Form 4 history101 transaction lines from 2025-03-26 to 2026-09-15
47 P purchase lines · 21 S sale lines · 33 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.