Follow the Filings · Data · NTHI · Form 4
SEC Form 4 · NTHI · filed Sep 15, 2026

NTHI: CEO bought $40,000 of NEONC TECHNOLOGIES HOLDINGS, INC.

The filing shows 2 Table I transactions by a CEO of NEONC TECHNOLOGIES HOLDINGS, INC.: bought $40,000. Source document and our reading of it are below; the SEC filing is the record, this page is the index.

Freshness

20:45:25SEC acceptance (ET) · Sep 15, 2026
21:00:46first seen by FTF (ET) · SEC current-filings feed
15 min 21 sacceptance → first seen

UTC: accepted 2026-09-16T00:45:25Z · seen 2026-09-16T01:00:46Z. Measured per filing; the distribution for every day is on coverage.

What the filing shows (Table I)

Trade dateCodeSharesPriceValueOwned after
Sep 11, 2026P · Open-market or private purchase5,556$3.60$20,00219,261
Sep 14, 2026P · Open-market or private purchase5,242$3.81$19,99824,503
Reporting person
CHEN THOMAS C · CEO
Issuer
NEONC TECHNOLOGIES HOLDINGS, INC. · CIK 1979414
Accession
0001213900-26-100266
Source
SEC filing index · complete submission
Rule 10b5-1
checkbox not captured by our parser yet — check the filing

Checks

Cluster buyPrice check: consistent

filing price is 0.98× the 2026-09-11 close (close $3.68 on 2026-09-11). Band: filing price within 0.4–2.5× of the last market close on or before the trade date; a filing outside the band is not published. Rows dropped by our data checks (duplicates, superseded amendments, impossible values, bulk program events, price outside the band) are excluded from every number on this page.

NTHI insider flow — 30 days to this filing

$722,752open-market buys · 14 rows · 3 insiders
$0open-market sells · 0 rows · 0 insiders
+$722,752net open-market flow
Cluster buy — 3 distinct insiders, $351,416 of open-market purchases between Sep 11, 2026 and Sep 15, 2026.
Definition: 3 or more distinct insiders reported open-market purchases within a 10-trading-day window, and the net open-market flow over the whole period shown is positive. The label is data, not a judgement.
FiledReporting personCodesRowsBuysSellsFiling
Aug 17, 2026Heshmatpour Amir F · CEO, PresidentP2$58,580—0001213900-26-090894
Aug 18, 2026Heshmatpour Amir F · CEO, PresidentP1$49,860—0001213900-26-091150
Aug 20, 2026CHEN THOMAS C · Chief Scientific OfficerP4$192,899—0001213900-26-092276
Aug 20, 2026CHEN THOMAS C · CEOP1$69,998—0001213900-26-092277
Sep 14, 2026Heshmatpour Amir F · CEO, PresidentP1$135,620—0001213900-26-099422
Sep 15, 2026GARNETT KEITHLY · CFOP1$1,001—0001213900-26-100265
Sep 15, 2026CHEN THOMAS C · CEOP2$40,000—0001213900-26-100266 (this filing)
Sep 15, 2026Heshmatpour Amir F · CEO, PresidentP2$174,795—0001213900-26-100269

Reading

The most ordinary reading of several insiders buying in the same window is directors and officers adding to holdings in an open trading window, often after results are public. Form 4 does not state a reason, and this page does not infer one.

Scope: SEC Form 4, Table I (non-derivative) only — Table II (options, RSUs) is not shown; on multi-owner filings the first reporting owner; Senate PTRs are covered, House is not. Every filing is reconciled daily against EDGAR's own index — see coverage.
Generated 2026-09-16 01:01 UTC from our reconciled ledger. Amended filings (Form 4/A) replace this page with a notice, they do not delete it. Found an error? hello@followthefilings.io.