Quick Takeaways
- Mark E. Strome filed SCHEDULE 13D/A for Zivo Bioscience Common Stock, par value $.001 per share (ZIVO).
- Disclosed ownership: 12%.
- Date of event: 31 Dec 2025.
Mark E. Strome - 31 Dec 2025 SCHEDULE 13D/A Report for Zivo Bioscience Common Stock, par value $.001 per share (ZIVO)
- Filing Manager
- Mark E. Strome
- Reporting Manager
- Mark E. Strome
- Symbol
- ZIVO
- Shares outstanding
- 3,908,612 shares
- Disclosed Ownership
- 472,942 shares
- Ownership
- 12%
- Form type
- SCHEDULE 13D/A
- Filing time
- 27 Feb 2026, 20:20:36 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Mark E. Strome disclosed 12% ownership in Zivo Bioscience Common Stock, par value $.001 per share (ZIVO) on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 27 Feb 2026, 20:20.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (5)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Mark E. Strome | 12% | 472,942 | 194,303 | 278,639 | /s/ Mark E. Strome | Mark E. Strome | 0000919484 |
| Strome Group, Inc. | 7.1% | 278,639 | 0 | 278,639 | /s/ Mark E. Strome | Mark E. Strome/President | 0001355526 |
| Strome Investment Management, LP | 7.1% | 278,639 | 0 | 278,639 | /s/ Mark E. Strome | Mark E. Strome/President of Strome Group, Inc., GP of Strome Investment Management, LP | 0000936711 |
| Strome Mezzanine Fund, LP | 0% | 0 | 0 | 0 | /s/ Mark E. Strome | Mark E. Strome/President of Strome Group, Inc., GP of Strome Investment Management, LP, GP of Strome Mezzanine Fund II, LP, surviving entity of merger | 0001713153 |
| Strome Mezzanine Fund II, LP | 6.8% | 266,198 | 0 | 266,198 | /s/ Mark E. Strome | Mark E. Strome/President of Strome Group, Inc., GP of Strome Investment Management, LP, GP of Strome Mezzanine Fund II, LP | 0001978360 |