Mizuho Securities USA’s Quartzsea Acquisition Corp Units QSEAU Stock Holding History

Mizuho Securities USA’s Portfolio QSEAU Stock Details QSEAU Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q2	–	Sell	-856,000	Closed	-$8.6M	–	735
2025 Q1	$8.6M	Buy	+856,000	New	+$8.62M	0.19%	106

Other funds holding QSEAU

RCM

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

Clear Street New York $39.5B AUM 124.03% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Mizuho Securities USA's QSEAU Position: Q2 2025 in Review

Mizuho Securities USA sold out of Quartzsea Acquisition Corp Units (QSEAU) in Q2 2025, closing a stake of 856,000 shares — an estimated $8.6M sold.

Mizuho Securities USA first reported a position in QSEAU in Q1 2025 and held it in 1 quarter. The position peaked at $8.6M in Q1 2025. 3 funds tracked by Wall St. Rank hold QSEAU as of Q2 2025.

Mizuho Securities USA reported no remaining Quartzsea Acquisition Corp Units position as of Q2 2025 after selling out during the quarter.
Mizuho Securities USA sold 856,000 Quartzsea Acquisition Corp Units shares in Q2 2025, an estimated $8.6M.
Mizuho Securities USA first reported a position in Quartzsea Acquisition Corp Units in Q1 2025 and held it in 1 quarter.
Mizuho Securities USA's Quartzsea Acquisition Corp Units position peaked at $8.6M in Q1 2025.
3 funds tracked by Wall St. Rank held Quartzsea Acquisition Corp Units as of Q2 2025.

Based on Mizuho Securities USA's 13F filing for Q2 2025, filed 1 Aug 2025.