Westchester Capital Management (New York)’s Quartzsea Acquisition Corp QSEA Stock Holding History

Westchester Capital Management (New York)’s Portfolio QSEA Stock Details QSEA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$6.43M	Buy	611,605 +245,000	+67%	+$2.56M	0.31%	62
2026 Q1	$3.81M	Hold	366,605	–	–	0.17%	116
2025 Q4	$3.76M	Hold	366,605	–	–	0.16%	111
2025 Q3	$3.72M	Hold	366,605	–	–	0.17%	110
2025 Q2	$3.68M	Buy	+366,605	New	+$3.67M	0.19%	83

Other funds holding QSEA

WRBC

W.R. Berkley Corp Greenwich, Connecticut $2.18B AUM 13.58% 1-Year Est. Return

MSU

Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return

KIM

Karpus Investment Management Pittsford, New York $3.48B AUM 10.49% 1-Year Est. Return

RCM

Rivernorth Capital Management West Palm Beach, Florida $2.1B AUM 2.15% 1-Year Est. Return

WAM

Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return

PAMP

Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return

RLH Capital Great Neck, New York $209M AUM

Hudson Bay Capital Management Stamford, Connecticut $36.8B AUM 42.13% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Westchester Capital Management (New York)'s QSEA Position: Q2 2026 in Review

Westchester Capital Management (New York) increased its Quartzsea Acquisition Corp (QSEA) stake by 67% in Q2 2026, buying an estimated $2.56M and bringing the position to 611,605 shares worth $6.43M. The position accounts for 0.31% of the portfolio, ranked #62.

Westchester Capital Management (New York) first reported a position in QSEA in Q2 2025 and has held it in 5 quarters since. 21 funds tracked by Wall St. Rank hold QSEA as of Q2 2026.

Westchester Capital Management (New York) held 611,605 shares of Quartzsea Acquisition Corp worth $6.43M as of Q2 2026.
Westchester Capital Management (New York) bought 245,000 Quartzsea Acquisition Corp shares in Q2 2026, an estimated $2.56M.
Quartzsea Acquisition Corp made up 0.31% of Westchester Capital Management (New York)'s portfolio in Q2 2026, its #62 holding.
Westchester Capital Management (New York) first reported a position in Quartzsea Acquisition Corp in Q2 2025 and has held it in 5 quarters since.
21 funds tracked by Wall St. Rank held Quartzsea Acquisition Corp as of Q2 2026.

Based on Westchester Capital Management (New York)'s 13F filing for Q2 2026, filed 14 Aug 2026.