Greffen Mark
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Greffen Mark. 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 |
|---|---|---|---|---|---|---|
| DRTTF | Chief Technology Officer | Award / Grant | 52,352 | — | — | May 15, 2023 |
| DRTTF | Chief Technology Officer | Option Exercise | 25,490 | — | — | Mar 1, 2023 |
| DRTTF | Chief Technology Officer | Award / Grant | 11,615 | $0.32 | $3,717 | Nov 30, 2022 |
| DRTTF | Chief Technology Officer | Option Exercise | 57,778 | — | — | Jun 17, 2022 |
| DRTTF | Chief Technology Officer | Option Exercise | 25,490 | — | — | Mar 1, 2022 |
| DRTTF | Chief Technology Officer | Award / Grant | 2,132 | — | — | Sep 28, 2021 |
| DRTTF | Chief Technology Officer | Tax Withholding | 27,733 | $3.64 | $100,948 | Jun 17, 2021 |