Archimedes Tech SPAC Partners III Co. Ordinary Share (ARCI) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for ARCI. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 50 institutions reported holding ARCI, with 20.0 million shares worth $199.8 million in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| Adage Capital Partners GP | 1,800,000 | $18M | UNCHANGED |
| Linden Advisors | 1,200,000 | $12M | UNCHANGED |
| Magnetar Financial | 1,200,000 | $12M | UNCHANGED |
| Governors Lane | 1,146,610 | $11M | INCREASED |
| Alberta Investment Management | 1,000,000 | $10M | NEW |
Full institutional holdings, insider history, and congressional trades for Archimedes Tech SPAC Partners III Co. Ordinary Share on SentiSense.