Archimedes Tech SPAC Partners III Co.
ARCIW- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002083910
No open-market purchases or sales by Archimedes Tech SPAC Partners III Co. insiders were filed in the last 90 days; 41 institutions reported holding it in 13F filings for Q2 2026, worth $3.21M in total; no superinvestor holds it.
Q2 2026 vs. Q1 2026
How the institutions holding Archimedes Tech SPAC Partners III Co. changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Q2 2026 | Change |
|---|---|---|---|
| Holders | 29 | 41 | +12 |
| Shares | 3.56M | 4.66M | +1.09M (+30.7%) |
| Value | $1.90M | $3.21M | +$1.31M (+69.0%) |
New holders (15)
Institutions that held Archimedes Tech SPAC Partners III Co. at the end of Q2 2026 but not at the end of Q1 2026.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Centiva Capital, LP | 324,439 | $243.3K | 0.01% |
| Alberta Investment Management Corp | 250,000 | $187.5K | 0.00% |
| CNH Partners LLC | 189,403 | $142.1K | 0.00% |
| Rivernorth Capital Management, LLC | 125,000 | $81.3K | 0.00% |
| BNP Paribas Arbitrage, SA | 123,093 | $77.0K | 0.00% |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 100,000 | $62.5K | 0.00% |
| MMCAP International Inc. SPC | 75,000 | $56.3K | 0.00% |
| Parallax Volatility Advisers, L.P. | 50,000 | $37.5K | 0.00% |
| Picton Mahoney Asset Management | 37,499 | $28.1K | 0.00% |
| Schonfeld Strategic Advisors LLC | 40,000 | $25.0K | 0.00% |
| Wealthspring Capital LLC | 40,870 | $20.5K | 0.00% |
| Bulldog Investors, LLP | 15,000 | $11.3K | 0.00% |
| SRS Capital Advisors, Inc. | 375 | $188 | 0.00% |
| UBS Group AG | 57 | $29 | 0.00% |
| Boothbay Fund Management, LLC | 25,000 | – | – |
Sold out (3)
Institutions that held Archimedes Tech SPAC Partners III Co. at the end of Q1 2026 and filed for Q2 2026 without it.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| L1 Global Manager Pty Ltd | 18,750 | $10.0K |
| Virtu Financial LLC | 19,000 | $10.0K |
| Hudson Bay Capital Management LP | 15,001 | $8.25K |