Archimedes Tech-30ATIIWPreferred / convertible
13F holders, Q2 2026 (June 30)32holders −4
7new positions
11sold out
1famous investor
$2.16avg. 13F price*
At the end of Q2 2026, 32 institutions reported holding Archimedes Tech-30 (ATIIW) in their 13F filings, down 4 from Q1 2026. 7 opened new positions and 11 sold out. The largest holders were Harraden Circle Investments, LLC ($2.5M), Aristeia Capital, L.L.C. ($1.7M) and TENOR CAPITAL MANAGEMENT Co., L.P. ($1.6M). One famous investor held it David E. Shaw ( of D. E. Shaw & Co.'s portfolio).
- Company
- Archimedes Tech-30
- CUSIP
- G04537125
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 7 | $1.5M |
| Exits | 11 | $682K |
All 13F filers, Q1 2026 → Q2 2026: 1,574,166 shares bought and 3,446,029 shares sold, net −1,871,863 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 32 holders
| Harraden Circle Investments, LLC | — | Reduce -29.7% | 1,131,600 | $2.5M |
| Aristeia Capital, L.L.C. | — | Add +530.8% | 788,491 | $1.7M |
| TENOR CAPITAL MANAGEMENT Co., L.P. | — | No change | 750,000 | $1.6M |
| LMR Partners LLP | — | Add +44.4% | 613,701 | $1.3M |
| Healthcare of Ontario Pension Plan Trust Fund | — | No change | 500,000 | $1.1M |
| Linden Advisors LP | — | Reduce -41.4% | 504,138 | $1.1M |
| AQR Arbitrage LLC | — | Add +0.5% | 481,366 | $1.0M |
| Magnetar Financial LLC | — | Reduce -32.7% | 437,600 | $954K |
| Alberta Investment Management Corp | — | No change | 375,000 | $821K |
| Decagon Asset Management LLP | — | New | 331,302 | $726K |
| D. E. Shaw & Co. | — | No change | 287,500 | $627K |
| K2 Principal Fund, L.P. | — | Add +17.0% | 280,718 | $615K |
| Moore Capital Management, LP | — | No change | 225,000 | $493K |
| Shaolin Capital Management LLC | — | Reduce -63.7% | 181,640 | $398K |
| BNP Paribas Financial Markets | — | No change | 161,927 | $355K |
| CSS LLC | — | Reduce -68.9% | 151,718 | $332K |
| Sculptor Capital LP | — | New | 150,200 | $329K |
| Rivernorth Capital Management, LLC | — | No change | 224,942 | $324K |
| Mint Tower Capital Management B.V. | — | Reduce -13.3% | 130,000 | $285K |
| Whitebox Advisors LLC | — | No change | 125,000 | $274K |
| Alpine Global Management, LLC | — | New | 71,039 | $156K |
| DLD Asset Management, LP | — | Reduce -30.6% | 69,400 | $152K |
| MMCAP International Inc. SPC | — | No change | 62,500 | $137K |
| Clear Street Group Inc. | — | Reduce -60.9% | 60,000 | $131K |
| Susquehanna International Group, LLP | — | New | 48,825 | $106K |
| Fort Baker Capital Management LP | — | New | 41,177 | $90K |
| Periscope Capital Inc. | — | Reduce -79.9% | 40,000 | $88K |
| Hudson Bay Capital Management LP | — | No change | 39,994 | $87K |
| Lineage Point Capital LP | — | Reduce -59.2% | 35,771 | $78K |
| Centiva Capital, LP | — | New | 31,450 | $69K |
| Schonfeld Strategic Advisors LLC | — | Reduce -63.5% | 30,000 | $66K |
| Thomas J. Herzfeld Advisors, Inc. | — | New | 5,000 | $11K |
"% of holder's portfolio" is ATIIW's weight in each manager's 13F, not the share of Archimedes Tech-30 the manager owns.