Archimedes Tech Spac PartnerATIIU
13F holders, Q2 2025 (June 30)9holders −35
1new positions
7sold out
1famous investor
$10.27avg. 13F price*
At the end of Q2 2025, 9 institutions reported holding Archimedes Tech Spac Partner (ATIIU) in their 13F filings, down 35 from Q1 2025. 1 opened new positions and 7 sold out. The largest holders were Millennium Management ($5.2M), Rivernorth Capital Management, LLC ($4.6M) and JPMorgan Chase & Co. ($1.4M). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Archimedes Tech Spac Partner
- CUSIP
- G04537117
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $10 |
| Exits | 7 | $19.1M |
All 13F filers, Q1 2025 → Q2 2025: 3,131 shares bought and 2,460,564 shares sold, net −2,457,433 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 9 holders
| Millennium Management | 0.00% | No change | 500,000 | $5.2M |
| Rivernorth Capital Management, LLC | 0.25% | No change | 450,000 | $4.6M |
| JPMorgan Chase & Co. | 0.00% | Reduce -74.5% | 138,380 | $1.4M |
| MMCAP International Inc. SPC | 0.16% | No change | 125,000 | $1.3M |
| Jane Street Group, LLC | 0.00% | Reduce -28.3% | 46,660 | $481K |
| Tuttle Capital Management, LLC | 0.85% | No change | 20,000 | $206K |
| Clear Street LLC | 0.00% | Reduce -88.5% | 19,194 | $198K |
| UBS Group AG | 0.00% | Add +313.0% | 4,130 | $42K |
| Toronto Dominion Bank | 0.00% | New | 1 | $10 |
"% of holder's portfolio" is ATIIU's weight in each manager's 13F, not the share of Archimedes Tech Spac Partner the manager owns.