Q
Quartzsea Acquisition Corporation Ordinary Shares
QSEA • NASDAQ
Quartzsea Acquisition Corporation Ordinary Shares is a blank checks company on NASDAQ, with a market cap of $116.5M. As of Q3 2025, 58% of shares are held by 22 institutional investors, with Karpus Management, Inc. as the largest holder at 19.95%.
Market Cap$116.5M
BLANK CHECKS
Overview
Overview of institutional ownership in QSEA as of Q3 2025 with a market cap of $115.6M
All Institutions
- Institutions
- 22
- Value Held
- $67.5M
- Shares Held
- 6.7M
- Avg Position
- $3.1M
- Median Position
- $1.8M
Hedge Funds
- Hedge Funds
- 14
- Value Held
- $35.0M
- Shares Held
- 3.5M
- Avg Position
- $2.5M
- Median Position
- $1.8M
Ownership Breakdown
Based on market cap of $115.6M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in QSEA as of Q3 2025
| Institution | Position Value |
|---|---|
K Karpus Management, Inc. Institution | $23.1M 0.74% of portfolio |
 WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy | $5.9M 0.40% of portfolio |
 MANGROVE PARTNERS Hedge Fund•Multi-Strategy | $4.1M 0.29% of portfolio |
 RIVERNORTH CAPITAL MANAGEMENT, LLC Hedge Fund•Multi-Strategy | $4.0M 0.24% of portfolio |
 CNH PARTNERS LLC Hedge Fund•Multi-Strategy | $3.8M 0.14% of portfolio |
 Westchester Capital Management, LLC Hedge Fund•Merger Arb | $3.7M 0.20% of portfolio |
 Polar Securities Inc. Hedge Fund•Multi-Strategy | $3.5M 0.11% of portfolio |
 BERKLEY W R CORP Institution | $2.9M 0.19% of portfolio |
 TORONTO DOMINION BANK Institution | $2.7M 0.01% of portfolio |
 TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | $1.9M 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for QSEA in Q3 2025
- Traded
- +$3.4M
- Buyers
- 5
- Sellers
- 7
- Total Bought
- +$6.1M
- Total Sold
- −$2.7M
- Avg Position
- $2.9M
Biggest Buyers
| Institution | Net Bought |
|---|---|
RIVERNORTH CAPITAL MANAGEMENT, LLC Hedge Fund•Multi-Strategy | +$4.0M +397.5K shares |
BERKLEY W R CORP Institution | +$1.4M +139.4K shares |
WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy | +$518.5K +51.2K shares |
 Wellspring Financial Advisors, LLC RIA/Wealth | +$179.3K +17.7K shares |
 MORGAN STANLEY RIA/Wealth | +$50.6 +5.0 shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
V Virtu Financial LLC Institution | −$956.8K −95.2K shares |
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | −$778.7K −76.9K shares |
 Shaolin Capital Management LLC Hedge Fund•Multi-Strategy | −$492.7K −48.6K shares |
K Karpus Management, Inc. Institution | −$244.1K −24.1K shares |
TORONTO DOMINION BANK Institution | −$132.9K −13.1K shares |
CNH PARTNERS LLC Hedge Fund•Multi-Strategy | −$74.9K −7.4K shares |
 GLAZER CAPITAL, LLC Hedge Fund•Multi-Strategy | −$12.6K −1.2K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited QSEA in Q3 2025
- New Positions
- 2
- New Value
- $4.2M
- Exited Positions
- 1
- Exited Value
- $956.8K
New Positions
| Institution | Position Value |
|---|---|
RIVERNORTH CAPITAL MANAGEMENT, LLC Hedge Fund•Multi-Strategy | $4.0M 397.5K shares |
Wellspring Financial Advisors, LLC RIA/Wealth | $179.3K 17.7K shares |
Exited Positions
| Institution | Previous Position |
|---|---|
V Virtu Financial LLC Institution | $956.8K 95.2K shares |
Options Activity
Institutions with the largest Call and Put options positions in QSEA as of Q3 2025
- Call Positions
- 0
- Call Value
- -
- Put Positions
- 0
- Put Value
- -
Call Positions
| Institution | Position Value |
|---|---|
| No call positions found | |
Put Positions
| Institution | Position Value |
|---|---|
| No put positions found | |
Most Committed Institutions
Institutions with QSEA as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
K Karpus Management, Inc. Institution | 0.74% $23.1M |
W Warberg Asset Management LLC Hedge Fund•Multi-Strategy | 0.48% $243.1K |
WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy | 0.40% $5.9M |
Shaolin Capital Management LLC Hedge Fund•Multi-Strategy | 0.39% $1.8M |
MANGROVE PARTNERS Hedge Fund•Multi-Strategy | 0.29% $4.1M |
RIVERNORTH CAPITAL MANAGEMENT, LLC Hedge Fund•Multi-Strategy | 0.24% $4.0M |
 Logan Stone Capital, LLC Hedge Fund•Long/Short | 0.24% $507.0K |
Westchester Capital Management, LLC Hedge Fund•Merger Arb | 0.20% $3.7M |
BERKLEY W R CORP Institution | 0.19% $2.9M |
 LINDEN ADVISORS LP Hedge Fund•Multi-Strategy | 0.18% $1.8M |
Hedge Fund Spotlight
Discover hedge funds investing in QSEA
LINDEN ADVISORS LP
Hedge Fund • Multi-Strategy
Portfolio ManagerSiu Min (Joe) Wong
- Portfolio Value
- $971.4M
- Positions
- 159
- Last Reported
- Q3 2025
Sector Allocation
Q
Position in Quartzsea Acquisition Corporation Ordinary Shares
- Market Value
- $1.8M
- Shares Held
- 175.0K
- Portfolio Weight
- 0.18%
- Owned Since
- 2025-Q2
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Software - Infrastructure Technology | $32.5M | 3.35% | |
Unknown Unknown | $31.2M | 3.22% | |
Semiconductors Technology | $29.1M | 2.99% |
