MSU
QSEA

Mizuho Securities USA’s Quartzsea Acquisition Corp QSEA Stock Holding History

Mizuho Securities USA’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 		$10.4M Buy
993,296
+315,542
+47% +$3.29M 0.17% 97
2026
Q1 		$6.95M Buy
677,754
+1,001
+0.1% +$10.3K 0.16% 127
2025
Q4 		$6.84M Buy
676,753
+34,976
+5% +$356K 0.11% 153
2025
Q3 		$6.43M Buy
641,777
+184,640
+40% +$1.87M 0.13% 153
2025
Q2 		$4.56M Buy
+457,137
New +$4.58M 0.1% 220

Other funds holding QSEA

WRBC
W.R. Berkley Corp Greenwich, Connecticut $2.18B AUM 13.58% 1-Year Est. Return
KIM
Karpus Investment Management Pittsford, New York $3.48B AUM 10.49% 1-Year Est. Return
WCMNY
Westchester Capital Management (New York) Valhalla, New York $2.04B AUM 31.03% 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
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return
RC
RLH Capital Great Neck, New York $209M AUM
Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $36.8B AUM 42.13% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Mizuho Securities USA's QSEA Position: Q2 2026 in Review

Mizuho Securities USA increased its Quartzsea Acquisition Corp (QSEA) stake by 47% in Q2 2026, buying an estimated $3.29M and bringing the position to 993,296 shares worth $10.4M. The position accounts for 0.17% of the portfolio, ranked #97.

Mizuho Securities USA 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.

  • Mizuho Securities USA held 993,296 shares of Quartzsea Acquisition Corp worth $10.4M as of Q2 2026.
  • Mizuho Securities USA bought 315,542 Quartzsea Acquisition Corp shares in Q2 2026, an estimated $3.29M.
  • Quartzsea Acquisition Corp made up 0.17% of Mizuho Securities USA's portfolio in Q2 2026, its #97 holding.
  • Mizuho Securities USA 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 Mizuho Securities USA's 13F filing for Q2 2026, filed 24 Jul 2026.