Follow the Filings · Data · Companies · NTHI
Insider transactions · last 90 days · since Jun 18, 2026

NTHI — NEONC TECHNOLOGIES HOLDINGS, INC.

8 Form 4 filings from 3 reporting persons. Open-market rows (codes P and S) are the decisions; grants, exercises and withholding are shown but not counted as flow. Rows dropped by our data checks are excluded.

Open-market flow

$722,752buys · 14 rows · 3 insiders
$0sells · 0 rows · 0 insiders
+$722,752net
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.

Filings

FiledReporting personCodesRowsBuysSellsAccept → seenFiling
Aug 17, 2026Heshmatpour Amir F · CEO, PresidentP2$58,580—index0001213900-26-090894
Aug 18, 2026Heshmatpour Amir F · CEO, PresidentP1$49,860—index0001213900-26-091150
Aug 20, 2026CHEN THOMAS C · Chief Scientific OfficerP4$192,899—3 h 35 min0001213900-26-092276
Aug 20, 2026CHEN THOMAS C · CEOP1$69,998—3 h 34 min0001213900-26-092277
Sep 14, 2026Heshmatpour Amir F · CEO, PresidentP1$135,620—15 min 30 s0001213900-26-099422
Sep 15, 2026GARNETT KEITHLY · CFOP1$1,001—1 min 1 s0001213900-26-100265
Sep 15, 2026CHEN THOMAS C · CEOP2$40,000—15 min 21 s0001213900-26-100266
Sep 15, 2026Heshmatpour Amir F · CEO, PresidentP2$174,795—13 min 9 s0001213900-26-100269

"Accept → seen" is measured per filing from SEC acceptance to our first read; "index" means the filing reached us through EDGAR's daily index and the interval is not measured. Filings without a link did not meet our page threshold or were withdrawn by a check; rows excluded by our data checks are not in the flow above.

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. Found an error? hello@followthefilings.io.