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Livermore
Livermore
ZHEN

Quartzsea Acquisition Corp

QSEA
Exchange
Nasdaq
Industry
Blank Checks
SEC CIK
0002047455

No open-market purchases or sales by Quartzsea Acquisition Corp insiders were filed in the last 90 days; 21 institutions reported holding it in 13F filings for Q2 2026, worth $70.9M in total; no superinvestor holds it.

Other share classesQSEARQSEAU

Q2 2025 vs. Q1 2025

How the institutions holding Quartzsea Acquisition Corp changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of QSEA: Q1 2025 compared with Q2 2025
MeasureQ1 2025Q2 2025Change
Holders024+24
Shares06.94M+6.94M
Value$0$69.7M+$69.7M

New holders (24)

Institutions that held Quartzsea Acquisition Corp at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to QSEA in Q2 2025
InstitutionSharesValue% of portfolio
Karpus Management, Inc.2,300,475$23.1M0.75%
Wolverine Asset Management LLC533,325$5.36M0.09%
Mizuho Securities USA LLC457,137$4.56M0.10%
Mangrove Partners408,154$4.10M0.44%
CNH Partners LLC377,339$3.79M0.09%
Westchester Capital Management, LLC366,605$3.68M0.22%
Polar Asset Management Partners Inc.350,000$3.52M0.09%
Toronto Dominion Bank280,095$2.81M0.01%
Two Sigma Investments, LP260,999$2.62M0.00%
Shaolin Capital Management LLC223,637$2.25M0.10%
Linden Advisors LP175,000$1.76M0.01%
Hudson Bay Capital Management LP175,000$1.76M0.01%
D. E. Shaw & Co., Inc.170,012$1.71M0.00%
Glazer Capital, LLC165,000$1.66M0.06%
Berkley W R Corp149,238$1.50M0.09%
Crossingbridge Advisors, LLC130,000$1.31M1.15%
Goldman Sachs Group Inc119,661$1.20M0.00%
Virtu Financial LLC95,248$957.0K0.05%
Dakota Wealth Management69,500$698.1K0.01%
Logan Stone Capital, LLC50,053$502.8K0.24%
Clear Street LLC30,979$311.2K0.00%
Radcliffe Capital Management, L.P.26,553$266.7K0.02%
Warberg Asset Management LLC24,000$241.1K0.06%
Morgan Stanley26$2610.00%

Sold out (0)

Institutions that held Quartzsea Acquisition Corp at the end of Q1 2025 and filed for Q2 2025 without it.

None.