Archimedes Tech Spac PartnerATIIU
13F holders, Q3 2025 (September 30)6holders −3
0new positions
3sold out
$10.88avg. 13F price*
At the end of Q3 2025, 6 institutions reported holding Archimedes Tech Spac Partner (ATIIU) in their 13F filings, down 3 from Q2 2025. 0 opened new positions and 3 sold out. The largest holders were JPMorgan Chase & Co. ($1.4M), Rivernorth Capital Management, LLC ($940K) and Jane Street Group, LLC ($579K).
- Company
- Archimedes Tech Spac Partner
- CUSIP
- G04537117
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 3 | $6.6M |
All 13F filers, Q2 2025 → Q3 2025: 1,003,454 shares sold, net −1,003,454 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 6 holders
| JPMorgan Chase & Co. | 0.00% | No change | 138,380 | $1.4M |
| Rivernorth Capital Management, LLC | 0.05% | Reduce -79.5% | 92,135 | $940K |
| Jane Street Group, LLC | 0.00% | Reduce -1.3% | 46,071 | $579K |
| Clear Street Group Inc. | 0.00% | — | 37,766 | $475K |
| UBS Group AG | 0.00% | No change | 4,130 | $42K |
| Toronto Dominion Bank | 0.00% | No change | 1 | $13 |
"% of holder's portfolio" is ATIIU's weight in each manager's 13F, not the share of Archimedes Tech Spac Partner the manager owns.