Archimedes Tech-30ATIIWPreferred / convertible
13F holders, Q1 2026 (March 31)36holders
2new positions
3sold out
1famous investor
$0.65avg. 13F price*
At the end of Q1 2026, 36 institutions reported holding Archimedes Tech-30 (ATIIW) in their 13F filings, unchanged from Q4 2025. 2 opened new positions and 3 sold out. The largest holders were Mint Tower Capital Management B.V. ($1.6M), Harraden Circle Investments, LLC ($821K) and TENOR CAPITAL MANAGEMENT Co., L.P. ($383K). 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 Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $57K |
| Exits | 3 | $249K |
All 13F filers, Q4 2025 → Q1 2026: 669,343 shares bought and 913,658 shares sold, net −244,315 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 36 holders
| Mint Tower Capital Management B.V. | — | No change | 150,000 | $1.6M |
| Harraden Circle Investments, LLC | — | Reduce -7.2% | 1,609,715 | $821K |
| TENOR CAPITAL MANAGEMENT Co., L.P. | — | No change | 750,000 | $383K |
| Linden Advisors LP | — | No change | 860,962 | $379K |
| Magnetar Financial LLC | — | No change | 650,000 | $332K |
| Toronto Dominion Bank | — | Add +1312.5% | 554,674 | $283K |
| Healthcare of Ontario Pension Plan Trust Fund | — | No change | 500,000 | $255K |
| Shaolin Capital Management LLC | — | No change | 500,000 | $255K |
| CSS LLC | — | Reduce -9.8% | 487,619 | $249K |
| AQR Arbitrage LLC | — | Reduce -2.1% | 479,208 | $244K |
| LMR Partners LLP | — | No change | 425,000 | $217K |
| Alberta Investment Management Corp | — | No change | 375,000 | $191K |
| D. E. Shaw & Co. | — | No change | 287,500 | $147K |
| K2 Principal Fund, L.P. | — | No change | 239,895 | $122K |
| Moore Capital Management, LP | — | No change | 225,000 | $115K |
| Rivernorth Capital Management, LLC | — | No change | 224,942 | $115K |
| Westchester Capital Management, LLC | — | No change | 199,999 | $102K |
| Periscope Capital Inc. | — | No change | 198,600 | $101K |
| Governors Lane LP | — | No change | 197,403 | $101K |
| BNP Paribas Financial Markets | — | No change | 161,927 | $83K |
| Clear Street Group Inc. | — | Add +35.7% | 153,619 | $78K |
| Whitebox Advisors LLC | — | No change | 125,000 | $64K |
| Picton Mahoney Asset Management | — | No change | 125,000 | $64K |
| Aristeia Capital, L.L.C. | — | No change | 125,000 | $55K |
| DLD Asset Management, LP | — | Reduce -70.8% | 100,000 | $51K |
| Lineage Point Capital LP | — | New | 87,687 | $45K |
| Verition Fund Management LLC | — | No change | 87,000 | $44K |
| Schonfeld Strategic Advisors LLC | — | No change | 82,192 | $42K |
| MMCAP International Inc. SPC | — | No change | 62,500 | $32K |
| Gritstone Asset Management LLC | — | No change | 49,540 | $25K |
| RLH Capital LLC | — | — | 47,382 | $24K |
| Hudson Bay Capital Management LP | — | No change | 39,994 | $20K |
| Glazer Capital, LLC | — | Reduce -54.8% | 24,850 | $13K |
| Readystate Asset Management LP | — | No change | 25,000 | $13K |
| Quarry LP | — | New | 23,691 | $12K |
| UBS Group AG | — | Add +278.9% | 2,963 | $2K |
"% of holder's portfolio" is ATIIW's weight in each manager's 13F, not the share of Archimedes Tech-30 the manager owns.