# QUARTZSEA ACQUISITION CORP (QSEAU)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/QSEAU/

- Reporting holders: 2
- Reported value: $321.2K
- Shares held by institutions: 29,995 of 10,134,518 outstanding
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Clear Street Group Inc.](https://holderbook.com/funds/1881567-clear-street-group-inc/) | $299.8K | 27,995 | 0.0% | 4 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $21.3K | 2,000 | 0.0% | 6 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 2 | $321.2K |
| Q1 2026 | 2 | $1.7M |
| Q4 2025 | 2 | $1.7M |
| Q3 2025 | 3 | $2.7M |
| Q2 2025 | 3 | $6.7M |
| Q1 2025 | 20 | $61.4M |