ARCIU Archimedes Tech SPAC Partners III Co.: institutional ownership and insider trading
15 funds reported holding $47.3M of Archimedes Tech SPAC Partners III Co. in their latest 13F filings; in Q2 2026 funds net sold $45.6M, with 1 new positions and 15 funds selling out; over the last 12 months insiders bought $0 and sold $0 on the open market.
Famous investors holding ARCIU
- Izzy Englander (Millennium Management): $1.83M, 0.0% of the portfolio
Largest institutional holders of ARCIU
- LMR Partners LLP — $12.7M
- TUDOR INVESTMENT CORP ET AL — $6.62M
- TORONTO DOMINION BANK (TD, TDBCP) — $6.59M
- OMERS ADMINISTRATION Corp — $4.89M
- ARISTEIA CAPITAL, L.L.C. — $4.08M
- Lineage Point Capital LP — $3.01M
- BlueCrest Capital Management Ltd — $2.82M
- MILLENNIUM MANAGEMENT LLC — $1.83M
- Qube Research & Technologies Ltd — $1.54M
- Calamos Advisors LLC — $1.29M
Recent ARCIU insider trades
- Jan 26, 2026: Archimedes Tech SPAC Sponsors III LLC bought 390,000 shares ($0)
- Jan 26, 2026: Long Long bought 390,000 shares ($0)
5%+ owners
- Adage Capital Management, L.P.: 5.1% (Schedule 13G, filed May 13, 2026)