PICKER DONALD H — SEC Form 4 filings
SEC reporting owner CIK 1266800. 8 Form 4 filings on record with FilingPulse; latest filed 2026-08-05.
Transaction summary — filings shown
Covers all 8 filings on record, filed 2024-06-21 to 2026-08-05. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 173,333 shares.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 27.
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 |
|---|---|---|---|---|---|
| Moleculin Biotech, Inc. (MBRX) | Chief Science Officer | 8 | 1 leg · 173,333 sh | — | 27 |
Form 4 filings — PICKER DONALD H
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-05 | 4 | Moleculin Biotech, Inc. (MBRX) | Purchase (P): 173,333 · Purchase (P): 519,999 (derivative) | EDGAR |
| 2026-06-24 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 44 · Tax withholding (F): 13 @ $2.88 · Option exercise (M): 71 · Tax withholding (F): 21 @ $3.12 · Option exercise (M): 44 (derivative) @ $0 · Option exercise (M): 71 (derivative) @ $0 | EDGAR |
| 2025-11-14 | 4 | Moleculin Biotech, Inc. (MBRX) | Grant/award (A): 200,000 (derivative) · Grant/award (A): 200,000 (derivative) | EDGAR |
| 2025-11-06 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 8,750 · Tax withholding (F): 2,131 @ $0.50 · Option exercise (M): 8,750 (derivative) @ $0 | EDGAR |
| 2025-06-23 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 1,078 · Tax withholding (F): 263 @ $0.27 · Option exercise (M): 1,766 · Tax withholding (F): 430 @ $0.27 · Option exercise (M): 1,078 (derivative) @ $0 · Option exercise (M): 1,766 (derivative) @ $0 | EDGAR |
| 2024-11-06 | 4 | Moleculin Biotech, Inc. (MBRX) | Grant/award (A): 40,000 (derivative) · Grant/award (A): 35,000 (derivative) · Grant/award (A): 5,744 (derivative) | EDGAR |
| 2024-06-25 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 1,766 · Tax withholding (F): 524 @ $3.74 · Option exercise (M): 1,766 (derivative) @ $0 | EDGAR |
| 2024-06-21 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 1,078 · Tax withholding (F): 320 @ $3.78 · Option exercise (M): 1,078 (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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