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QSEA QUARTZSEA ACQUISITION CORP

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ORD SHS (common), issuer CIK 2047455

26 managers (26 13F filers) reported a position in QSEA shares at 2026-03-31, 7,529,467 shares in all. 1 filer opened a position and 1 filer sold out during the quarter.

Managers
26
13F filers
26
New
1
Added
5
Reduced
7
Sold out
1
Shares held by filers
7,529,467

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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.2,256,805$23.4M0.73%-7,07513F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC677,754$6.95M0.16%+1,00113F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC599,522$6.22M0.1%-2,99113F-HRTimelineGroup
RIVERNORTH CAPITAL MANAGEMENT, LLC499,756$5.18M0.26%013F-HRTimeline
MANGROVE PARTNERS IM, LLC408,154$4.23M0.34%013F-HRTimeline
BERKLEY W R CORP405,549$4.21M0.23%+87,86313F-HRTimeline
Westchester Capital Management, LLCin group Westchester Capital Managemen…366,605$3.81M0.18%013F-HRTimelineGroup
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC354,288$3.68M0.06%-15,67213F-HRTimelineGroup
Polar Asset Management Partners Inc.350,000$3.63M0.09%013F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK200,000$2.07M<0.01%-41,97513F-HRTimelineGroup
Shaolin Capital Management LLC176,586$1.83M0.08%013F-HRTimeline
Linden Advisors LPin group Linden Advisors LP175,000$1.82M0.01%013F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…175,000$1.82M0.01%013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.170,112$1.77M<0.01%+10013F-HRTimelineGroup
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC149,544$1.55M0.03%-38213F-HRTimelineGroup
Crossingbridge Advisors, LLC140,189$1.46M0.26%013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC119,661$1.24M<0.01%013F-HRTimelineGroup
Dakota Wealth Management69,500$721K0.02%013F-HR/ATimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP59,288$615K<0.01%-25,98213F-HRTimelineGroup
Logan Stone Capital, LLC51,553$535K0.15%+1,50013F-HRTimeline
RLH Capital LLC41,339$429K0.22%13F-HRTimeline
Radcliffe Capital Management, L.P.26,553$275K0.02%013F-HRTimeline
Warberg Asset Management LLC21,951$228K0.07%-2,04913F-HRTimeline
Wellspring Financial Advisors, LLC17,700$184K0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS16,987$176K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY71$736<0.01%+3313F-HRTimelineGroup