Skip to content

QSEA QUARTZSEA ACQUISITION CORP

Follow

ORD SHS (common), issuer CIK 2047455

25 managers (25 13F filers) reported a position in QSEA shares at 2025-09-30, 7,465,732 shares in all. 2 filers opened a position and 1 filer sold out during the quarter.

Managers
25
13F filers
25
New
2
Added
5
Reduced
6
Sold out
1
Shares held by filers
7,465,732

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Karpus Management, Inc.2,276,380$23.1M0.73%-24,09513F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC641,777$6.43M0.13%+184,64013F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC584,505$5.92M0.09%+51,18013F-HRTimelineGroup
MANGROVE PARTNERS IM, LLC408,154$4.13M0.31%013F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC397,500$4.03M0.23%new13F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC369,960$3.76M0.1%-7,37913F-HRTimelineGroup
Westchester Capital Management, LLCin group Westchester Capital Managemen…366,605$3.72M0.19%013F-HRTimelineGroup
Polar Asset Management Partners Inc.350,000$3.55M0.07%013F-HR/ATimeline
BERKLEY W R CORP288,603$2.92M0.19%+139,36513F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK266,975$2.7M0.01%-13,12013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP184,128$1.87M<0.01%-76,87113F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP175,000$1.78M0.01%013F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…175,000$1.78M0.01%013F-HR/ATimelineGroup
Shaolin Capital Management LLC175,000$1.77M0.08%-48,63713F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.170,012$1.73M<0.01%013F-HRTimelineGroup
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC163,753$1.66M0.06%-1,24713F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC119,661$1.21M<0.01%013F-HRTimelineGroup
Dakota Wealth Management69,500$704K0.01%013F-HR/ATimeline
Logan Stone Capital, LLC50,053$507K0.23%013F-HRTimeline
Radcliffe Capital Management, L.P.26,553$269K0.02%013F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.24,693$250K<0.01%13F-HRTimelineGroup
Warberg Asset Management LLC24,000$243K0.07%013F-HRTimeline
Wellspring Financial Advisors, LLC17,700$179K0.02%new13F-HRTimeline
Crossingbridge Advisors, LLC140,189$140K0.07%+10,18913F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY31$314<0.01%+513F-HR/ATimelineGroup