CHEN THOMAS C — SEC Form 4 filings
SEC reporting owner CIK 1998682. 9 Form 4 filings on record with FilingPulse; latest filed 2026-09-15.
Transaction summary — filings shown
Covers all 9 filings on record, filed 2025-03-28 to 2026-09-15. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 12 legs across 6 filings — 112,889 shares, $485,699 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 4 legs across 2 filings — 78,466 shares, $1,950,109 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 7.
- Largest priced transaction: sale of 38,250 shares @ $25.00 ($956,250) in NEONC TECHNOLOGIES HOLDINGS, INC., filed 2025-06-05.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | CEO, Director, 10% owner | 9 | 12 legs · 112,889 sh · $485,699 | 4 legs · 78,466 sh · $1,950,109 | 7 |
Form 4 filings — CHEN THOMAS C
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-15 | 4 | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Purchase (P): 5,556 @ $3.60 · Purchase (P): 5,242 @ $3.81 | EDGAR |
| 2026-08-20 | 4 | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Purchase (P): 12,757 @ $5.49 | EDGAR |
| 2026-08-20 | 4/A | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Purchase (P): 948 @ $5.17 · Purchase (P): 10,000 @ $4.80 · Purchase (P): 33,787 @ $3.85 · Purchase (P): 2,472 @ $4.04 | EDGAR |
| 2026-08-18 | 4 | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Purchase (P): 33,787 @ $3.85 · Purchase (P): 2,472 @ $4.04 | EDGAR |
| 2025-06-05 | 4/A | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Other (J): 4,076 @ $0 · Option exercise/expiry (X): 79,688 @ $12 · Sale (S): 38,250 @ $25 · Sale (S): 983 @ $19.13 · Option exercise/expiry (X): 79,688 (derivative) @ $0 | EDGAR |
| 2025-05-23 | 4 | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Purchase (P): 2,759 @ $7.25 · Purchase (P): 2,709 @ $7.38 | EDGAR |
| 2025-05-19 | 4 | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Purchase (P): 400 @ $7 | EDGAR |
| 2025-04-08 | 4/A | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Other (J): 4,076 @ $0 · Option exercise/expiry (X): 79,688 @ $12 · Sale (S): 38,250 @ $25 · Sale (S): 983 @ $19.13 · Option exercise/expiry (X): 79,688 (derivative) @ $0 | EDGAR |
| 2025-03-28 | 4 | NEONC TECHNOLOGIES HOLDINGS, INC. (NTHI) | Other (J): 4,076 @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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