Quartzsea AcquisitionQSEARPreferred / convertible
13F holders, Q2 2026 (June 30)14holders −2
0new positions
2sold out
1famous investor
$0.22avg. 13F price*
At the end of Q2 2026, 14 institutions reported holding Quartzsea Acquisition Corp. (QSEAR) in their 13F filings, down 2 from Q1 2026. 0 opened new positions and 2 sold out. The largest holders were Harraden Circle Investments, LLC ($561K), Shaolin Capital Management LLC ($127K) and Rivernorth Capital Management, LLC ($109K). One famous investor held it David E. Shaw ( of D. E. Shaw & Co.'s portfolio).
- Company
- Quartzsea Acquisition Corp.
- CUSIP
- G7314B120
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 2 | $11K |
All 13F filers, Q1 2026 → Q2 2026: 133,678 shares bought and 314,225 shares sold, net −180,547 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 14 holders
| Harraden Circle Investments, LLC | — | No change | 2,548,048 | $561K |
| Shaolin Capital Management LLC | — | Add +0.3% | 575,393 | $127K |
| Rivernorth Capital Management, LLC | — | No change | 499,872 | $109K |
| Mangrove Partners Im, LLC | — | No change | 408,154 | $90K |
| Highbridge Capital Management LLC | — | Reduce -4.3% | 382,957 | $84K |
| AQR Arbitrage LLC | — | Add +0.1% | 370,460 | $82K |
| Polar Asset Management Partners Inc. | — | No change | 350,000 | $77K |
| Toronto Dominion Bank | — | Reduce -21.1% | 336,000 | $74K |
| Clear Street Group Inc. | — | Add +95.8% | 268,292 | $59K |
| D. E. Shaw & Co. | — | No change | 170,000 | $37K |
| Linden Advisors LP | — | No change | 175,000 | $33K |
| BNP Paribas Financial Markets | — | No change | 119,661 | $26K |
| Hudson Bay Capital Management LP | — | Reduce -42.9% | 100,000 | $22K |
| Wolverine Asset Management LLC | — | Reduce -36.6% | 74,112 | $16K |
"% of holder's portfolio" is QSEAR's weight in each manager's 13F, not the share of Quartzsea Acquisition Corp. the manager owns.