Moleculin Biotech Inc (MBRX)
Insider transactions
A complete record of Form 4 filings tracking every share acquisition and disposal by executives, directors, and senior officers. Filterable by date range and transaction type, the table exposes the direct market actions of those with the deepest knowledge of a company's operations — providing a factual, data-driven signal of internal conviction that complements traditional fundamental and technical analysis.
Transaction date | Executive | Executive Title | Security Type | Acquisition / Disposal | Shares | Share price |
|---|---|---|---|---|---|---|
| Aug 3, 2026 | FOSTER, JONATHAN P. | Chief Financial Officer | Series I Warrants | Acquisition | 879,999 | |
| Aug 3, 2026 | PICKER, DONALD H | Chief Science Officer | Series I Warrants | Acquisition | 519,999 | |
| Aug 3, 2026 | PICKER, DONALD H | Chief Science Officer | Common Stock | Acquisition | 173,333 | |
| Aug 3, 2026 | KLEMP, WALTER V | Director, CEO and President | Common Stock | Acquisition | 533,333 | |
| Aug 3, 2026 | KLEMP, WALTER V | Director, CEO and President | Series I Warrants | Acquisition | 1,599,999 | |
| Aug 3, 2026 | FOSTER, JONATHAN P. | Chief Financial Officer | Common Stock | Acquisition | 293,333 | |
| Jun 22, 2026 | PICKER, DONALD H | Chief Science Officer | Common Stock | Acquisition | 71 | |
| Jun 22, 2026 | KLEMP, WALTER V | Director, CEO and President | Restricted Stock Units | Disposal | 360 | 0 |
| Jun 22, 2026 | KLEMP, WALTER V | Director, CEO and President | Common Stock | Disposal | 88 | 3.12 |
| Jun 22, 2026 | PICKER, DONALD H | Chief Science Officer | Common Stock | Disposal | 21 | 3.12 |
| Jun 22, 2026 | FOSTER, JONATHAN P. | Chief Financial Officer | Common Stock | Disposal | 41 | 3.12 |
| Jun 22, 2026 | FOSTER, JONATHAN P. | Chief Financial Officer | Restricted Stock Units | Disposal | 174 | 0 |
| Jun 22, 2026 | KLEMP, WALTER V | Director, CEO and President | Common Stock | Acquisition | 360 | |
| Jun 22, 2026 | PICKER, DONALD H | Chief Science Officer | Restricted Stock Units | Disposal | 71 | 0 |
| Jun 22, 2026 | FOSTER, JONATHAN P. | Chief Financial Officer | Common Stock | Acquisition | 174 | |
| Jun 20, 2026 | FOSTER, JONATHAN P. | Chief Financial Officer | Common Stock | Disposal | 31 | 2.88 |
| Jun 20, 2026 | PICKER, DONALD H | Chief Science Officer | Common Stock | Acquisition | 44 | |
| Jun 20, 2026 | FOSTER, JONATHAN P. | Chief Financial Officer | Restricted Stock Units | Disposal | 109 | 0 |
| Jun 20, 2026 | KLEMP, WALTER V | Director, CEO and President | Common Stock | Acquisition | 150 | |
| Jun 20, 2026 | FOSTER, JONATHAN P. | Chief Financial Officer | Common Stock | Acquisition | 109 | |
| Jun 20, 2026 | KLEMP, WALTER V | Director, CEO and President | Common Stock | Disposal | 37 | 2.88 |
| Jun 20, 2026 | PICKER, DONALD H | Chief Science Officer | Restricted Stock Units | Disposal | 44 | 0 |
| Jun 20, 2026 | PICKER, DONALD H | Chief Science Officer | Common Stock | Disposal | 13 | 2.88 |
| Jun 20, 2026 | KLEMP, WALTER V | Director, CEO and President | Restricted Stock Units | Disposal | 150 | 0 |
| Nov 12, 2025 | KLEMP, WALTER V | Director, CEO and President | Stock option (right to buy) | Acquisition | 830,000 | |
| Nov 12, 2025 | KLEMP, WALTER V | Director, CEO and President | Performance Based Restricted Stock Units | Acquisition | 750,000 | |
| Nov 12, 2025 | FOSTER, JONATHAN P. | EVP & CFO | Stock option (right to buy) | Acquisition | 600,000 | |
| Nov 12, 2025 | PICKER, DONALD H | CSO | Performance Based Restricted Stock Units | Acquisition | 200,000 | |
| Nov 12, 2025 | CANNON, MICHAEL D | Director | Stock Options (right to buy) | Acquisition | 150,000 | |
| Nov 12, 2025 | CLIMACO, JOHN M | Director | Stock Options (right to buy) | Acquisition | 150,000 | |
| Nov 12, 2025 | CERMAK, ELIZABETH | Director | Stock Options (right to buy) | Acquisition | 150,000 | |
| Nov 12, 2025 | FOSTER, JONATHAN P. | EVP & CFO | Performance Based Restricted Stock Units | Acquisition | 400,000 | |
| Nov 12, 2025 | PICKER, DONALD H | CSO | Stock option (right to buy) | Acquisition | 200,000 | |
| Nov 12, 2025 | GEORGE, ROBERT E. | Director | Stock Options (right to buy) | Acquisition | 150,000 | |
| Nov 12, 2025 | YAN, JOY | Director | Stock Options (right to buy) | Acquisition | 150,000 | |
| Nov 4, 2025 | KLEMP, WALTER V | Director, CEO and President | Restricted Stock Units | Disposal | 28,750 | 0 |
| Nov 4, 2025 | FOSTER, JONATHAN P. | Chief Financial Officer | Common Stock | Acquisition | 20,625 | |
| Nov 4, 2025 | FOSTER, JONATHAN P. | Chief Financial Officer | Restricted Stock Units | Disposal | 20,625 | 0 |
| Nov 4, 2025 | PICKER, DONALD H | Chief Science Officer | Common Stock | Disposal | 2,131 | 0.497 |
| Nov 4, 2025 | KLEMP, WALTER V | Director, CEO and President | Common Stock | Disposal | 7,001 | 0.497 |
| Nov 4, 2025 | KLEMP, WALTER V | Director, CEO and President | Common Stock | Acquisition | 28,750 | |
| Nov 4, 2025 | PICKER, DONALD H | Chief Science Officer | Common Stock | Acquisition | 8,750 | |
| Nov 4, 2025 | FOSTER, JONATHAN P. | Chief Financial Officer | Common Stock | Disposal | 5,023 | 0.497 |
| Nov 4, 2025 | PICKER, DONALD H | Chief Science Officer | Restricted Stock Units | Disposal | 8,750 | 0 |