Quartzsea AcquisitionQSEARPreferred / convertible

13F holders, Q2 2025 (June 30)
15holders
1famous investor
$0.28avg. 13F price*

At the end of Q2 2025, 15 institutions reported holding Quartzsea Acquisition Corp. (QSEAR) in their 13F filings. The largest holders were Harraden Circle Investments, LLC ($663K), Toronto Dominion Bank ($153K) and Highbridge Capital Management LLC ($136K). One famous investor held it David E. Shaw ( of D. E. Shaw & Co.'s portfolio).

Company
Quartzsea Acquisition Corp.
CUSIP
G7314B120
Latest filing quarter
Q2 2026

History

Number of 13F holders

05101520 Q2 2025: 15Q2 2025Q3 2025: 16Q3 2025Q4 2025: 15Q4 2025Q1 2026: 16Q1 2026Q2 2026: 14Q2 2026

Total Exit/New Position Q2 2025

InstitutionsTotal Value
New Positions15$1.9M
Exits0$0

Ownership 15 holders

Harraden Circle Investments, LLC — New 2,548,048 $663K
Toronto Dominion Bank — New 586,612 $153K
Highbridge Capital Management LLC — New 400,000 $136K
AQR Arbitrage LLC — New 500,000 $130K
Shaolin Capital Management LLC — New 500,000 $130K
Mangrove Partners Im, LLC — New 408,154 $106K
Polar Asset Management Partners Inc. — New 350,000 $105K
Wolverine Asset Management LLC — New 305,000 $104K
Glazer Capital, LLC — New 293,930 $76K
Alpine Global Management, LLC — New 250,000 $65K
Hudson Bay Capital Management LP — New 175,000 $60K
D. E. Shaw & Co. — New 170,000 $58K
Linden Advisors LP — New 175,000 $53K
Clear Street LLC — New 149,703 $39K
Mizuho Securities USA LLC — — 65,254 $16K

"% of holder's portfolio" is QSEAR's weight in each manager's 13F, not the share of Quartzsea Acquisition Corp. the manager owns.