QSEAR · 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 QSEAR 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 QSEAR
13F quarter Jun 30, 2026; this listing alone: insiders and shares outstanding are issuer-wide, so they are left outNo chart: shares outstanding cannot be set against these holders.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 6,388,184 | — |
| Insiders (Forms 3, 4, 5) | 0 | — |
| 13D/G-only blocks | 0 | — |
| Registered funds (N-PORT, not summed) | 2,372 | — |
% Out is unavailable: shares outstanding is an issuer-wide count, not one listing's.
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 QSEAR
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Harraden Circle Investments, LLC
13F
CIK 1910592 · Registered investment adviser · Jun 30, 2026
|
2,548,048 | ||
| 2 |
Shaolin Capital Management LLC
13F
CIK 1766806 · Registered investment adviser · Jun 30, 2026
|
575,393 | ||
| 3 |
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F
CIK 1447578 · Registered investment adviser · Jun 30, 2026
|
499,872 | ||
| 4 |
MANGROVE PARTNERS IM, LLC
13F
CIK 1535392 · Registered investment adviser · Jun 30, 2026
|
408,154 | ||
| 5 |
HIGHBRIDGE CAPITAL MANAGEMENT LLC
13F
CIK 919185 · Registered investment adviser · Jun 30, 2026
|
382,957 | ||
| 6 |
AQR Arbitrage LLC
13F
CIK 1167456 · Registered investment adviser · Jun 30, 2026
|
370,460 | ||
| 7 |
Polar Asset Management Partners Inc.
13F
CIK 1326389 · Registered investment adviser · Jun 30, 2026
|
350,000 | ||
| 8 |
TORONTO DOMINION BANK
13F
CIK 947263 · Bank · Jun 30, 2026
|
336,000 | ||
| 9 |
Clear Street Group Inc.
13F
CIK 1881567 · Unknown · Jun 30, 2026
|
268,292 | ||
| 10 |
Linden Advisors LP
13F
CIK 1279396 · Registered investment adviser · Jun 30, 2026
|
175,000 | ||
| 11 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
|
170,000 | ||
| 12 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
|
119,661 | ||
| 13 |
Hudson Bay Capital Management LP
13F
CIK 1393825 · Registered investment adviser · Jun 30, 2026
|
100,000 | ||
| 14 |
WOLVERINE ASSET MANAGEMENT LLC
13F
CIK 1279891 · Registered investment adviser · Jun 30, 2026
|
74,112 | ||
| 15 |
MIZUHO SECURITIES USA LLC
13F
CIK 812291 · Unknown · Jun 30, 2026
|
10,235 | ||
| 16 |
Rivernorth Enhanced Pre-Merger SPAC ETF
Fund
S000092118 · Registered fund · Jun 30, 2026
Elevation Series Trust, not summed
|
2,372 |
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.