QSEA · Quartzsea Acquisition Corp · Shareholders & Ownership
Substantial doubt about the company's ability to continue as a going concern.
“Management concluded that, due to the Company’s liquidity condition and requirement to complete a business combination within the prescribed period to avoid liquidation, substantial doubt exists about the Company’s ability to continue as a going concern.”View the 10-Q filed Oct 9, 2026
Every disclosed holder of QSEA in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns QSEA
13F quarter Jun 30, 2026No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 13,158,199 | 129.84% |
| Insiders (Forms 3, 4, 5) | 6,259,800 | 61.77% |
| 13D/G-only blocks | 1,593,428 | 15.72% |
| Remaining | 10,876,909 | -107.33% |
| Registered funds (N-PORT, not summed) | 162,065 | 1.60% |
Shares outstanding: 10,134,518, the issuer's latest cover-page count restated onto today's split basis.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of QSEA
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
|
3,129,900 | ||
| 1.1 |
|
3,129,900 | ||
| 2 |
|
3,129,900 | ||
| 3 |
Harraden Circle Investments, LLC
13F
CIK 1910592 · Registered investment adviser · Jun 30, 2026
|
2,548,048 | ||
| 4 |
BERKLEY W R CORP
13F
CIK 11544 · Insurance company · Jun 30, 2026
|
1,094,190 | ||
| 4.1 |
BERKLEY W R CORP
13G
CIK 11544 · Insurance company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
900,000 | ||
| 5 |
|
1,003,531 | ||
| 6 |
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F
CIK 1447578 · Registered investment adviser · Jun 30, 2026
Classes QSEA, QSEAR
|
999,536 | ||
| 7 |
Mizuho Financial Group, Inc.
13G
CIK 1335730 · Bank · Jun 30, 2026
Rule 13d-1(b), qualified institution
|
993,296 | ||
| 8 |
Karpus Management, Inc.
13F
CIK 1048703 · Investment adviser · Jun 30, 2026
|
974,765 | ||
| 8.1 |
Karpus Management, Inc.
13G
CIK 1048703 · Investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
974,765 | ||
| 9 |
AQR Arbitrage LLC
13F
CIK 1167456 · Registered investment adviser · Jun 30, 2026
Classes QSEA, QSEAR
|
726,673 | ||
| 10 |
Polar Asset Management Partners Inc.
13F
CIK 1326389 · Registered investment adviser · Jun 30, 2026
Classes QSEA, QSEAR
|
725,000 | ||
| 11 |
Shaolin Capital Management LLC
13F
CIK 1766806 · Registered investment adviser · Jun 30, 2026
Classes QSEA, QSEAR
|
690,233 | ||
| 12 |
Westchester Capital Management, LLC
13F
CIK 1512805 · Registered investment adviser · Jun 30, 2026
|
611,605 | ||
| 13 |
|
600,132 | ||
| 14 |
WOLVERINE ASSET MANAGEMENT LLC
13F
CIK 1279891 · Registered investment adviser · Jun 30, 2026
Classes QSEA, QSEAR
|
569,600 | ||
| 14.1 |
WOLVERINE ASSET MANAGEMENT LLC
13G
CIK 1279891 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
495,488 | ||
| 15 |
|
486,000 | ||
| 16 |
|
424,816 | ||
| 17 |
MANGROVE PARTNERS IM, LLC
13F
CIK 1535392 · Registered investment adviser · Jun 30, 2026
|
408,154 | ||
| 18 |
HIGHBRIDGE CAPITAL MANAGEMENT LLC
13F
CIK 919185 · Registered investment adviser · Jun 30, 2026
|
382,957 | ||
| 19 |
|
341,612 | ||
| 20 |
Hudson Bay Capital Management LP
13F
CIK 1393825 · Registered investment adviser · Jun 30, 2026
Classes QSEA, QSEAR
|
275,159 | ||
| 21 |
RLH Capital LLC
13F
CIK 2008031 · Unknown · Jun 30, 2026
|
252,439 | ||
| 22 |
Linden Advisors LP
13F
CIK 1279396 · Registered investment adviser · Jun 30, 2026
|
175,000 | ||
| 23 |
|
136,648 | ||
| 24 |
GLAZER CAPITAL, LLC
13F
CIK 1076809 · Registered investment adviser · Jun 30, 2026
|
126,887 | ||
| 25 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
|
119,661 | ||
| 26 |
Dakota Wealth Management
13F
CIK 1631353 · Registered investment adviser · Jun 30, 2026
|
49,760 | ||
| 27 |
First Trust Alternative Opportunities Fund
Fund
· Registered fund · Jun 30, 2026
First Trust Alternative Opportunities Fund, not summed
|
45,000 | ||
| 27.1 |
RiverNorth Opportunities Fund Inc.
Fund
· Registered fund · Jun 30, 2026
RIVERNORTH OPPORTUNITIES FUND INC., not summed
|
100,000 | ||
| 28 |
Warberg Asset Management LLC
13F
CIK 1597506 · Unknown · Jun 30, 2026
|
22,916 | ||
| 29 |
Global Multi-Strategy Fund
Fund
S000033960 · Registered fund · May 31, 2026
Principal Funds, Inc, not summed
|
14,901 | ||
| 30 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
|
10,948 | ||
| 31 |
Rivernorth Enhanced Pre-Merger SPAC ETF
Fund
S000092118 · Registered fund · Jun 30, 2026
Elevation Series Trust, not summed
|
2,164 | ||
| 32 |
UBS Group AG
13F
CIK 1610520 · Bank · Jun 30, 2026
|
2,000 | ||
| 33 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
|
61 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.