Quartzsea AcquisitionQSEA
13F holders, Q4 2025 (December 31)25holders
0new positions
0sold out
1famous investor
$10.05avg. 13F price*
At the end of Q4 2025, 25 institutions reported holding Quartzsea Acquisition Corp. (QSEA) in their 13F filings, unchanged from Q3 2025. 0 opened new positions and 0 sold out. The largest holders were Karpus Management, Inc. ($23.2M), Mizuho Securities USA LLC ($6.8M) and Wolverine Asset Management LLC ($6.2M). One famous investor held it David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Quartzsea Acquisition Corp.
- CUSIP
- G7314B104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q3 2025 → Q4 2025: 185,916 shares bought and 150,185 shares sold, net +35,731 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 25 holders
| Karpus Management, Inc. | 0.71% | Reduce -0.6% | 2,263,880 | $23.2M |
| Mizuho Securities USA LLC | 0.11% | Add +5.5% | 676,753 | $6.8M |
| Wolverine Asset Management LLC | 0.36% | Add +3.1% | 602,513 | $6.2M |
| Rivernorth Capital Management, LLC | 0.24% | Add +25.7% | 499,756 | $5.1M |
| Mangrove Partners Im, LLC | 0.34% | No change | 408,154 | $4.2M |
| AQR Arbitrage LLC | 0.10% | No change | 369,960 | $3.8M |
| Westchester Capital Management, LLC | 0.18% | No change | 366,605 | $3.8M |
| Polar Asset Management Partners Inc. | 0.09% | No change | 350,000 | $3.6M |
| Berkley W R Corp. | 0.19% | Add +10.1% | 317,686 | $3.2M |
| Toronto Dominion Bank | 0.00% | Reduce -9.4% | 241,975 | $2.5M |
| Shaolin Capital Management LLC | 0.24% | Add +0.9% | 176,586 | $1.8M |
| Linden Advisors LP | 0.14% | No change | 175,000 | $1.8M |
| Hudson Bay Capital Management LP | 0.01% | No change | 175,000 | $1.8M |
| D. E. Shaw & Co. | 0.00% | No change | 170,012 | $1.7M |
| Glazer Capital, LLC | 0.05% | Reduce -8.4% | 149,926 | $1.5M |
| Goldman Sachs Group Inc. | 0.00% | No change | 119,661 | $1.2M |
| Two Sigma Investments, LP | 0.00% | Reduce -53.7% | 85,270 | $872K |
| Dakota Wealth Management | 0.01% | No change | 69,500 | $711K |
| Logan Stone Capital, LLC | 0.13% | No change | 50,053 | $512K |
| Radcliffe Capital Management, L.P. | 0.04% | No change | 26,553 | $272K |
| Clear Street Group Inc. | 0.00% | No change | 24,693 | $253K |
| Warberg Asset Management LLC | 0.78% | No change | 24,000 | $246K |
| Wellspring Financial Advisors, LLC | 0.01% | No change | 17,700 | $181K |
| Crossingbridge Advisors, LLC | 0.08% | No change | 140,189 | $140K |
| Morgan Stanley | 0.00% | Add +22.6% | 38 | $389 |
"% of holder's portfolio" is QSEA's weight in each manager's 13F, not the share of Quartzsea Acquisition Corp. the manager owns.