🕵️ Sonnet Biotherapeutics Holdings, Inc. ($SONN)
SEC insider & ownership activity, last 12 months · CIK 1106838 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. One red-flag 8-K in the window: Delisting notice (3.01), Dec 2, 2025.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
No current 5%+ beneficial-ownership positions on file.
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Acquisition or disposition (2.01) | Dec 2, 2025 | filing ↗ |
| Delisting notice (3.01) | Dec 2, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Dec 2, 2025 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Dec 2, 2025 | filing ↗ |
| Change of control (5.01) | Dec 2, 2025 | filing ↗ |
| Officer/director changes (5.02) | Dec 2, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Dec 2, 2025 | filing ↗ |
| Shareholder vote (5.07) | Dec 2, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 2, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 2, 2025 | filing ↗ |
| Other events (8.01) | Dec 2, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 2, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 18, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 18, 2025 | filing ↗ |
| Shareholder vote (5.07) | Sep 26, 2025 | filing ↗ |
| Officer/director changes (5.02) | Jul 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 31, 2025 | filing ↗ |