🕵️ Sanuwave Health, Inc. ($SNVW)
SEC insider & ownership activity, last 12 months · CIK 1417663 · every row links its SEC filing
Over the last 12 months insiders sold $7.2M against $38K of open-market buying. Manchester Management Company, LLC sold $5.0M (Dec). Manchester Management Company, LLC trimmed 11.1% → 10.8%; AWM Investment Company, Inc. trimmed 7.1% → 6.0%. One red-flag 8-K in the window: Restatement (4.02), Mar 13, 2026.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $38K (1 lots) · 2 sellers, $7.2M (17 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Manchester Management Company, LLC | 0 | – | 6 | $5.0M | Dec 12, 2025 |
| Opaleye Management Inc. | 1 | $38K | 11 | $2.2M | May 1, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| James E. Besser | 11.1% | 13D | Dec 8, 2025 | filing ↗ | |
| Manchester Management PR, LLC | 11.1% | 13D | Dec 8, 2025 | filing ↗ | |
| Manchester Management PR, LLC | 10.8% | 13D | Dec 11, 2025 | filing ↗ | |
| James E. Besser | 10.8% | 13D | Dec 11, 2025 | filing ↗ | |
| Manchester Management Company, LLC | 10.8% | 13D | Dec 11, 2025 | filing ↗ | |
| Morgan C. Frank | 10.7% | 13D | Dec 11, 2025 | filing ↗ | |
| Morgan C. Frank | 10.7% | 13D | Dec 8, 2025 | filing ↗ | |
| Manchester Explorer, L.P. | 10.1% | 13D | Dec 11, 2025 | filing ↗ | |
| Manchester Explorer, L.P. | 10.1% | 13D | Dec 8, 2025 | filing ↗ | |
| Opaleye Management Inc. | 10.0% | 13G | May 4, 2026 | filing ↗ | |
| James Silverman | 10.0% | 13G | May 4, 2026 | filing ↗ | |
| Opaleye, L.P. | 9.9% | 13G | May 4, 2026 | filing ↗ | |
| AWM Investment Company, Inc. | 6.0% | 13G | May 9, 2025 | filing ↗ | |
| Blackrock, Inc. | 5.6% | 13G | Oct 17, 2025 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 13, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 16, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 11, 2026 | filing ↗ |
| Earnings (2.02) | May 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Earnings (2.02) | Apr 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 16, 2026 | filing ↗ |
| Earnings (2.02) | Mar 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 26, 2026 | filing ↗ |
| Restatement (4.02) | Mar 13, 2026 | filing ↗ |
| Earnings (2.02) | Nov 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 7, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 24, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 25, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 25, 2025 | filing ↗ |
| Agreement terminated (1.02) | Sep 25, 2025 | filing ↗ |
| New financial obligation (2.03) | Sep 25, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 25, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 25, 2025 | filing ↗ |
| Other events (8.01) | Aug 21, 2025 | filing ↗ |
| Shareholder vote (5.07) | Aug 19, 2025 | filing ↗ |
| Officer/director changes (5.02) | Aug 19, 2025 | filing ↗ |
| Shareholder vote (5.07) | Aug 19, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 19, 2025 | filing ↗ |
| Earnings (2.02) | Aug 8, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 8, 2025 | filing ↗ |
| Officer/director changes (5.02) | Jul 28, 2025 | filing ↗ |