Nguyen Diem — SEC Form 4 filings
SEC reporting owner CIK 1814338. 12 Form 4 filings on record with FilingPulse; latest filed 2026-06-24.
Transaction summary — filings shown
Covers all 12 filings on record, filed 2024-01-30 to 2026-06-24. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 24.
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 |
|---|---|---|---|---|---|
| SIGA TECHNOLOGIES INC (SIGA) | Chief Executive Officer, Director | 6 | — | — | 18 |
| Candel Therapeutics, Inc. (CADL) | Director | 3 | — | — | 3 |
| Verrica Pharmaceuticals Inc. (VRCA) | Director | 3 | — | — | 3 |
Form 4 filings — Nguyen Diem
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-24 | 4 | Candel Therapeutics, Inc. (CADL) | Grant/award (A): 32,000 (derivative) @ $0 | EDGAR |
| 2026-06-09 | 4 | Verrica Pharmaceuticals Inc. (VRCA) | Grant/award (A): 16,000 (derivative) @ $0 | EDGAR |
| 2026-03-17 | 4 | SIGA TECHNOLOGIES INC (SIGA) | Option exercise (M): 85,045 @ $0 · Tax withholding (F): 47,029 @ $5.26 · Option exercise (M): 85,045 (derivative) @ $0 · Grant/award (A): 272,243 (derivative) @ $0 | EDGAR |
| 2026-01-28 | 4 | SIGA TECHNOLOGIES INC (SIGA) | Option exercise (M): 55,902 @ $0 · Tax withholding (F): 22,804 @ $6.82 · Option exercise (M): 55,902 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | Candel Therapeutics, Inc. (CADL) | Grant/award (A): 14,240 (derivative) @ $0 | EDGAR |
| 2025-06-09 | 4 | Verrica Pharmaceuticals Inc. (VRCA) | Grant/award (A): 20,000 (derivative) @ $0 | EDGAR |
| 2025-03-14 | 4 | SIGA TECHNOLOGIES INC (SIGA) | Grant/award (A): 255,137 (derivative) @ $0 | EDGAR |
| 2025-01-29 | 4 | SIGA TECHNOLOGIES INC (SIGA) | Option exercise (M): 55,902 @ $0 · Tax withholding (F): 23,644 @ $6.34 · Option exercise (M): 55,902 (derivative) @ $0 | EDGAR |
| 2024-10-29 | 4 | SIGA TECHNOLOGIES INC (SIGA) | Option exercise (M): 59,288 @ $0 · Tax withholding (F): 23,893 @ $6.77 · Option exercise (M): 59,288 (derivative) @ $0 | EDGAR |
| 2024-06-27 | 4 | Candel Therapeutics, Inc. (CADL) | Grant/award (A): 14,240 (derivative) @ $0 | EDGAR |
| 2024-06-07 | 4 | Verrica Pharmaceuticals Inc. (VRCA) | Grant/award (A): 20,000 (derivative) @ $0 | EDGAR |
| 2024-01-30 | 4 | SIGA TECHNOLOGIES INC (SIGA) | Grant/award (A): 109,606 (derivative) @ $0 · Grant/award (A): 219,212 (derivative) @ $0 · Grant/award (A): 167,707 (derivative) @ $0 · Grant/award (A): 177,865 (derivative) @ $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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