Archimedes Tech SPAC Partners II Co.
ATIIW- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002028516
No open-market purchases or sales by Archimedes Tech SPAC Partners II Co. insiders were filed in the last 90 days; 33 institutions reported holding it in 13F filings for Q2 2026, worth $18.1M in total; no superinvestor holds it.
Q2 2026 vs. Q1 2026
How the institutions holding Archimedes Tech SPAC Partners II Co. changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Q2 2026 | Change |
|---|---|---|---|
| Holders | 37 | 33 | −4 |
| Shares | 10.2M | 8.37M | −1.87M (−18.3%) |
| Value | $5.08M | $18.1M | +$13.0M (+256.2%) |
New holders (7)
Institutions that held Archimedes Tech SPAC Partners II Co. at the end of Q2 2026 but not at the end of Q1 2026.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Decagon Asset Management LLP | 331,302 | $725.5K | 0.14% |
| Sculptor Capital LP | 150,200 | $328.9K | 0.00% |
| Alpine Global Management, LLC | 71,039 | $155.6K | 0.03% |
| Susquehanna International Group, LLP | 48,825 | $106.4K | 0.00% |
| Fort Baker Capital Management LP | 41,177 | $90.2K | 0.01% |
| Centiva Capital, LP | 31,450 | $68.6K | 0.00% |
| Thomas J. Herzfeld Advisors, Inc. | 5,000 | $10.9K | 0.00% |
Sold out (11)
Institutions that held Archimedes Tech SPAC Partners II Co. at the end of Q1 2026 and filed for Q2 2026 without it.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Toronto Dominion Bank | 554,674 | $282.9K |
| Westchester Capital Management, LLC | 199,999 | $102.0K |
| Governors Lane LP | 197,403 | $100.7K |
| Picton Mahoney Asset Management | 125,000 | $63.8K |
| Verition Fund Management LLC | 87,000 | $44.4K |
| Gritstone Asset Management LLC | 49,540 | $25.3K |
| RLH Capital LLC | 47,382 | $24.2K |
| Glazer Capital, LLC | 24,850 | $13.0K |
| Readystate Asset Management LP | 25,000 | $12.8K |
| Quarry LP | 23,691 | $12.1K |
| UBS Group AG | 2,963 | $1.51K |