ARCHIMEDES TECH SPAC PTNRS I (ARCIU)
Institutional ownership reported to the SEC as of Q2 2026, across 2 quarters.
13
Reporting holders
$46.9M
Reported value
13.0%
Of shares outstanding
0.0%
Held as options
-15
Holder change
Institutions report 4,589,540 shares against 35,262,000 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| LMR Partners LLP | $12.7M | 1,250,000 | 0.05% | 2q | HELD |
| TUDOR INVESTMENT CORP ET AL | $6.6M | 650,000 | 0.01% | 2q | HELD |
| TORONTO DOMINION BANK | $6.6M | 646,217 | 0.01% | 2q | +158.5%+$4.0M |
| OMERS ADMINISTRATION Corp | $4.9M | 480,000 | 0.03% | 2q | HELD |
| ARISTEIA CAPITAL, L.L.C. | $4.1M | 400,779 | 0.05% | 2q | HELD |
| Lineage Point Capital LP | $3.0M | 288,776 | 0.62% | 2q | +5.0%+$143.7K |
| BlueCrest Capital Management Ltd | $2.8M | 275,000 | 0.09% | 2q | HELD |
| MILLENNIUM MANAGEMENT LLC | $1.8M | 179,743 | 0.00% | 2q | -48.6%-$1.7M |
| Qube Research & Technologies Ltd | $1.5M | 150,000 | 0.00% | 2q | HELD |
| Calamos Advisors LLC | $1.3M | 124,000 | 0.00% | 2q | HELD |
| Westchester Capital Management, LLC | $1.0M | 100,000 | 0.05% | 2q | HELD |
| Clear Street Group Inc. | $349.1K | 34,256 | 0.00% | 2q | +240.4%+$246.5K |
| Tuttle Capital Management, LLC | $109.4K | 10,769 | 0.07% | 2q | +7.7%+$7.8K |
| HRT FINANCIAL LP | $256 | 25,000 | 0.00% | 2q | HELD |
| GLAZER CAPITAL, LLC | $110 | 10,523 | 0.00% | new | NEW |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 13 | $46.9M | 4,589,540 | 0 | 4 | 1 | 0.0% |
| Q1 2026 | 28 | $90.8M | 9,074,200 | 28 | 0 | 0 | 0.0% |