SEC 13F Intelligence

QUARTZSEA ACQUISITION CORP

CUSIP G7314B104

Quartzsea Acquisition Corp has 26 institutional holders in Filings Flow’s 13F database, together reporting 7.53M shares worth $76M as of Q1 2026. The largest reported holders are Karpus Management, Inc., Mizuho Securities USA LLC, and Wolverine Asset Management LLC.

Institutional Holders
26
Q1 2026
Reported Value
$76M
Ticker
unmapped
private placement or foreign
Quarters Tracked
2

Ownership Trend

Institutional holders
Q4 ’25: 25Q4 ’25Q1 ’26: 26Q1 ’26filingsflow.com
Total reported value
Q4 ’25: $74MQ4 ’25Q1 ’26: $76MQ1 ’26filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
Karpus Management, Inc.$3.2B AUM0.73%$23M2.26MQ1 2026
MANGROVE PARTNERS IM, LLC$1.2B AUM0.34%$4M408.2KQ1 2026
Crossingbridge Advisors, LLC$553M AUM0.26%$1M140.2KQ1 2026
RIVERNORTH CAPITAL MANAGEMENT, LLC$2.0B AUM0.26%$5M499.8KQ1 2026
BERKLEY W R CORP$1.9B AUM0.23%$4M405.5KQ1 2026
RLH Capital LLC$197M AUM0.22%$428,68541.3KQ1 2026
Westchester Capital Management, LLC$2.2B AUM0.17%$4M366.6KQ1 2026
MIZUHO SECURITIES USA LLC$4.2B AUM0.16%$7M677.8KQ1 2026
Logan Stone Capital, LLC$360M AUM0.15%$534,60551.6KQ1 2026
Polar Asset Management Partners Inc.$5.0B AUM0.07%$4M350.0KQ1 2026
Shaolin Capital Management LLC$2.7B AUM0.07%$2M176.6KQ1 2026
AQR Arbitrage LLC$6.1B AUM0.06%$4M354.3KQ1 2026
WOLVERINE ASSET MANAGEMENT LLC$10.4B AUM0.06%$6M599.5KQ1 2026
Warberg Asset Management LLC$600M AUM0.04%$227,63222.0KQ1 2026
Radcliffe Capital Management, L.P.$1.3B AUM0.02%$275,35526.6KQ1 2026
Dakota Wealth Management$4.6B AUM0.02%$720,71569.5KQ1 2026
Wellspring Financial Advisors, LLC$1.3B AUM0.01%$183,54917.7KQ1 2026
LINDEN ADVISORS LP$17.9B AUM0.01%$2M175.0KQ1 2026
Hudson Bay Capital Management LP$29.0B AUM0.01%$2M175.0KQ1 2026
TORONTO DOMINION BANK$69.7B AUM0.00%$2M200.0KQ1 2026
CLEAR STREET LLC$25.1B AUM0.00%$311,18431.0KQ2 2025OLDER
D. E. Shaw & Co., Inc.$166.3B AUM0.00%$2M170.1KQ1 2026
Clear Street Group Inc.$24.6B AUM0.00%$252,60924.7KQ4 2025OLDER
TWO SIGMA INVESTMENTS, LP$123.9B AUM0.00%$614,81759.3KQ1 2026
GOLDMAN SACHS GROUP INC$870.9B AUM0.00%$1M119.7KQ1 2026
BNP PARIBAS FINANCIAL MARKETS$205.8B AUM0.00%$176,15517.0KQ1 2026
MORGAN STANLEY$1.67T AUM0.00%$38938Q1 2026

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.