Quartzsea AcquisitionQSEA
13F holders, Q1 2026 (March 31)26holders +1
1new positions
1sold out
1famous investor
$10.36avg. 13F price*
At the end of Q1 2026, 26 institutions reported holding Quartzsea Acquisition Corp. (QSEA) in their 13F filings, up 1 from Q4 2025. 1 opened new positions and 1 sold out. The largest holders were Karpus Management, Inc. ($23.4M), Mizuho Securities USA LLC ($6.9M) 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 Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $176K |
| Exits | 1 | $253K |
All 13F filers, Q4 2025 → Q1 2026: 107,484 shares bought and 120,819 shares sold, net −13,335 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 26 holders
| Karpus Management, Inc. | 0.73% | Reduce -0.3% | 2,256,805 | $23.4M |
| Mizuho Securities USA LLC | 0.16% | Add +0.1% | 677,754 | $6.9M |
| Wolverine Asset Management LLC | 0.33% | Reduce -0.5% | 599,522 | $6.2M |
| Rivernorth Capital Management, LLC | 0.26% | No change | 499,756 | $5.2M |
| Mangrove Partners Im, LLC | 0.34% | No change | 408,154 | $4.2M |
| Berkley W R Corp. | 0.23% | Add +27.7% | 405,549 | $4.2M |
| Westchester Capital Management, LLC | 0.18% | No change | 366,605 | $3.8M |
| AQR Arbitrage LLC | 0.07% | Reduce -4.2% | 354,288 | $3.7M |
| Polar Asset Management Partners Inc. | 0.12% | No change | 350,000 | $3.6M |
| Toronto Dominion Bank | 0.00% | Reduce -17.4% | 200,000 | $2.1M |
| Shaolin Capital Management LLC | 0.20% | No change | 176,586 | $1.8M |
| Linden Advisors LP | 0.11% | 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% | Add +0.1% | 170,112 | $1.8M |
| Glazer Capital, LLC | 0.03% | Reduce -0.3% | 149,544 | $1.6M |
| Crossingbridge Advisors, LLC | 0.30% | No change | 140,189 | $1.5M |
| Goldman Sachs Group Inc. | 0.00% | No change | 119,661 | $1.2M |
| Dakota Wealth Management | 0.02% | No change | 69,500 | $721K |
| Two Sigma Investments, LP | 0.00% | Reduce -30.5% | 59,288 | $615K |
| Logan Stone Capital, LLC | 0.15% | Add +3.0% | 51,553 | $535K |
| RLH Capital LLC | 0.22% | — | 41,339 | $429K |
| Radcliffe Capital Management, L.P. | 0.03% | No change | 26,553 | $275K |
| Warberg Asset Management LLC | 0.47% | Reduce -8.5% | 21,951 | $228K |
| Wellspring Financial Advisors, LLC | 0.01% | No change | 17,700 | $184K |
| BNP Paribas Financial Markets | 0.00% | New | 16,987 | $176K |
| Morgan Stanley | 0.00% | Add +86.8% | 71 | $736 |
"% of holder's portfolio" is QSEA's weight in each manager's 13F, not the share of Quartzsea Acquisition Corp. the manager owns.