🕵️ Archimedes Tech SPAC Partners II Co. ($ATIIU)
SEC insider & ownership activity, last 12 months · CIK 2028516 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. No red-flag 8-Ks in the window.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Tenor Capital Management Company, LP | 5.8% | 13G | Feb 19, 2025 | filing ↗ | |
| Tenor Capital Management Company, L.P. | 5.1% | 13G | Nov 7, 2025 | filing ↗ | |
| Tenor Opportunity Master Fund, Ltd. | 5.1% | 13G | Nov 7, 2025 | filing ↗ | |
| Robin Shah | 5.1% | 13G | Nov 7, 2025 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Unregistered equity sale (3.02) | Jul 14, 2026 | filing ↗ |
| Other events (8.01) | Jul 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 14, 2026 | filing ↗ |
| Other events (8.01) | Jun 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 25, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 28, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 21, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 20, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Apr 20, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 20, 2026 | filing ↗ |