KLEMP WALTER V
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to KLEMP WALTER V. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| MBRX | CEO and President | Tax Withholding | 7,001 | $0.50 | $3,501 | Nov 4, 2025 |
| MBRX | CEO and President | Tax Withholding | 914 | $0.27 | $247 | Jun 20, 2025 |
| MBRX | CEO and President | Tax Withholding | 406 | $0.69 | $280 | Jun 16, 2025 |
| MBRX | CEO and President | Option Exercise | 982 | — | — | Jul 2, 2024 |
| MBRX | CEO and President | Option Exercise | 8,990 | — | — | Jun 22, 2024 |
| MBRX | CEO and President | Tax Withholding | 914 | $3.78 | $3,455 | Jun 20, 2024 |
| MBRX | CEO and President | Tax Withholding | 406 | $4.14 | $1,681 | Jun 16, 2024 |
| MBRX | CEO and President | Purchase | 188,404 | $0.69 | $129,999 | Dec 26, 2023 |
| MBRX | CEO and President | Option Exercise | 13,204 | — | — | Jul 11, 2023 |
| MBRX | CEO and President | Tax Withholding | 3,584 | $0.58 | $2,079 | Jul 2, 2023 |
| MBRX | CEO and President | Tax Withholding | 13,697 | $0.57 | $7,807 | Jun 20, 2023 |
| MBRX | CEO and President | Tax Withholding | 6,088 | $0.57 | $3,470 | Jun 16, 2023 |
| MBRX | CEO and President | Purchase | 45,000 | $1.28 | $57,600 | Nov 25, 2022 |
| MBRX | CEO and President | Purchase | 22,500 | $1.15 | $25,875 | Nov 21, 2022 |
| MBRX | CEO and President | Purchase | 85,213 | $0.97 | $82,657 | Nov 17, 2022 |
| MBRX | CEO and President | Option Exercise | 13,204 | — | — | Jul 11, 2022 |
| MBRX | CEO and President | Tax Withholding | 3,215 | $1.68 | $5,401 | Jul 11, 2022 |
| MBRX | CEO and President | Option Exercise | 14,717 | — | — | Jul 2, 2022 |
| MBRX | CEO and President | Option Exercise | 14,717 | — | — | Jul 2, 2022 |
| MBRX | CEO and President | Option Exercise | 25,000 | — | — | Jun 16, 2022 |
| 0001548187 | Executive Chairman | Disposition | 425,000 | $22.60 | $9,605,000 | Dec 16, 2021 |
| MBRX | CEO and President | Tax Withholding | 3,215 | $3.56 | $11,445 | Jul 11, 2021 |
| MBRX | CEO and President | Tax Withholding | 3,584 | $3.56 | $12,759 | Jul 2, 2021 |
| MBRX | CEO and President | Tax Withholding | 19,292 | $0.86 | $16,591 | Jul 13, 2020 |
| MBRX | Chief Executive Officer | Sale | 100,000 | $1.70 | $170,000 | Aug 16, 2017 |
| MBRX | Chief Executive Officer | Purchase | 12,000 | $0.81 | $9,720 | May 11, 2017 |