Security key
G7314B104
Quartzsea Acquisition Corp - Ordinary Shares, par value $0.0001 per share (QSEA)
CUSIP: G7314B104
Q4 2025 13F Holders as of 31 Dec 2025
- Type / Class
- Equity / Ordinary Shares, par value $0.0001 per share
- Shares outstanding
- 11,416,113
- Total 13F shares
- 7,361,274
- Share change
- +35,731
- Total reported value
- $75,243,540
- Price per share
- $10.23
- Number of holders
- 24
- Value change
- +$360,974
- Number of buys
- 6
- Number of sells
- 4
Report period
Q4 2025
Institutions
24
Top holders
10
QSEA full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
Quartzsea Acquisition Corp SEC filings
Quartzsea Acquisition Corp company facts
Broader feeds
Reporting periods
Holder history for CUSIP G7314B104
Recent filing periods:
Ownership snapshot
Top shareholders of QSEA - Quartzsea Acquisition Corp - Ordinary Shares, par value $0.0001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Lead holder
Blue Jay Investment LLC
13D/G signal
Blue Jay Investment LLC
Evidence rows
34
Latest as of
30 Sep 2025
13D/G
3/4/5
13F
Lead comparable stake: 27%
13D/G row: Blue Jay Investment LLC
Showing first 8 of 34 holder rows.
Open remaining rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Blue Jay Investment LLC |
13D/G
3/4/5
10%+ Owner
|
27%
|
—
3,129,900 shares
|
$0 | 19 Mar 2025 |
| Karpus Management, Inc. |
13D/G
13F
Company
|
21%
|
$23,640,374
2,368,775 shares
|
$0 | 30 May 2025 |
| MIZUHO FINANCIAL GROUP INC |
13D/G
|
5.6%
|
$6,610,303
641,777 shares
|
-$2,206,497 | 30 Sep 2025 |
| WOLVERINE ASSET MANAGEMENT LLC |
13F
13D/G
Company
|
5.1%
from 13D/G
|
$5,955,787
705,511 shares
mixed-class rows
|
— | 30 Sep 2025 |
| Feis Equities LLC |
13D/G
|
4.2%
|
—
484,963 shares
|
$0 | 22 May 2025 |
| TD SECURITIES (USA) LLC |
13D/G
|
2.5%
|
$2,884,978
280,095 shares
|
-$3,423,772 | 30 Jun 2025 |
| Westchester Capital Management, LLC |
13F
Company
|
3.2%
|
$3,721,041
366,605 shares
|
— | 30 Sep 2025 |
| BERKLEY W R CORP |
13F
Company
|
2.5%
|
$2,923,548
288,603 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
24
Shares
7,361,274
Rows loaded
24
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. An asterisk next to the price means the price is likely invalid.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
25
Q4 2025 holders
24
Holder diff
-1
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend