Quartzsea Acquisition Corp
QSEA- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002047455
No open-market purchases or sales by Quartzsea Acquisition Corp insiders were filed in the last 90 days; 21 institutions reported holding it in 13F filings for Q2 2026, worth $70.9M in total; no superinvestor holds it.
Q1 2026 vs. Q4 2025
How the institutions holding Quartzsea Acquisition Corp changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Q1 2026 | Change |
|---|---|---|---|
| Holders | 25 | 26 | +1 |
| Shares | 7.50M | 7.53M | +28.0K (+0.4%) |
| Value | $75.4M | $78.0M | +$2.63M (+3.5%) |
New holders (2)
Institutions that held Quartzsea Acquisition Corp at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| RLH Capital LLC | 41,339 | $428.7K | 0.22% |
| BNP Paribas Arbitrage, SA | 16,987 | $176.2K | 0.00% |
Sold out (1)
Institutions that held Quartzsea Acquisition Corp at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Clear Street Group Inc. | 24,693 | $252.6K |