Quartzsea Acquisition QSEA Institutional Ownership

NASDAQ QSEA

$10.60 -0.02 (-0.19%)

As of: Aug 25, 2026 · 11:29 AM EDT

Institutions by Trading Activity

26 Institutions

Increased 7 26.9%

Unchanged 11 42.3%

Reduced 8 30.8%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

90.94%

▼-40.30 pp QoQ

Shares Held by Institutions

7.53Mn

of 8.28Mn outstanding

▼-0.88% QoQ

Shares Outstanding

8.28Mn

750.53K held outside 13F filers

Institutional Investors

filed 13F for Mar 2026

▲+1 vs prior quarter

Net Shares Added (QoQ)

-66.96K

distributed since last quarter

Value of Holdings

$79.96Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 31 Mar, 2026

Quartzsea Acquisition Corp (NASDAQ:QSEA) has 26 institutional investors that have filed 13F reports for the period ending March 2026.

These investors collectively held 90.9% of Quartzsea Acquisition's outstanding shares in March 2026, down from 131.2% in December 2025.
Their total shares held in QSEA decreased -0.88% quarter over quarter, and separately, investors owning Quartzsea Acquisition stayed flat from a year ago.
During the quarter, 7 of these 26 funds increased positions in QSEA, 8 reduced exposure, and 11 held steady.
In total, institutional investors held 7.53Mn shares in Quartzsea Acquisition as of March 2026, down by 66.96K shares quarter on quarter, and with no net change year over year.
As of March 31, 2026, Karpus Management, Inc. held the largest stake in Quartzsea Acquisition with 2.26Mn shares, accounting for 27.26% of total shares outstanding.
The biggest buyers of Quartzsea Acquisition for the quarter ending March 2026 included Berkley W R Corp (87.86K), RLH Capital LLC (41.34K), BNP PARIBAS FINANCIAL MARKETS (16.99K), Logan Stone Capital, LLC (1.5K), MIZUHO SECURITIES USA LLC (1.0K).
The largest sales of QSEA for the quarter ending March 2026 came from Goldman Sachs Group Inc (119.66K), Toronto Dominion Bank (41.98K), TWO SIGMA INVESTMENTS, LP (25.98K), AQR Arbitrage LLC (15.67K), Karpus Management, Inc. (7.08K).
Business Quant data shows the 10 biggest positions in Quartzsea Acquisition as of March 2026 are held by Karpus Management, Inc. (2.26Mn), MIZUHO SECURITIES USA LLC (677.75K), WOLVERINE ASSET MANAGEMENT LLC (599.52K), RIVERNORTH CAPITAL MANAGEMENT, LLC (499.76K), MANGROVE PARTNERS IM, LLC (408.15K), Berkley W R Corp (405.55K), Westchester Capital Management, LLC (366.6K), AQR Arbitrage LLC (354.29K), Polar Asset Management Partners Inc. (350.0K), Toronto Dominion Bank (200.0K).

Form 13F Holdings

26 Institutional Holders

Report period 31 Mar, 2026

Total shares held 7.53Mn

Of outstanding 90.94%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Karpus Management, Inc.	0001048703	2,256,805	27.26%	▼7,075	-0.31%	$23.40Mn
2	MIZUHO SECURITIES USA LLC	0000812291	677,754	8.19%	▲1,001	+0.15%	$6.95Mn
3	WOLVERINE ASSET MANAGEMENT LLC	0001279891	599,522	7.24%	▼2,991	-0.50%	$6.22Mn
4	RIVERNORTH CAPITAL MANAGEMENT, LLC	0001447578	499,756	6.04%	0	0.00%	$5.18Mn
5	MANGROVE PARTNERS IM, LLC	0001535392	408,154	4.93%	0	0.00%	$4.23Mn
6	Berkley W R Corp	0000011544	405,549	4.90%	▲87,863	+27.66%	$4.21Mn
7	Westchester Capital Management, LLC	0001512805	366,605	4.43%	0	0.00%	$3.81Mn
8	AQR Arbitrage LLC	0001167456	354,288	4.28%	▼15,672	-4.24%	$3.68Mn
9	Polar Asset Management Partners Inc.	0001326389	350,000	4.23%	0	0.00%	$3.63Mn
10	Toronto Dominion Bank	0000947263	200,000	2.42%	▼41,975	-17.35%	$2.07Mn
11	Shaolin Capital Management LLC	0001766806	176,586	2.13%	0	0.00%	$1.83Mn
12	Hudson Bay Capital Management LP	0001393825	175,000	2.11%	0	0.00%	$1.82Mn
12	LINDEN ADVISORS LP	0001279396	175,000	2.11%	0	0.00%	$1.82Mn
13	D. E. Shaw & Co., Inc.	0001009207	170,112	2.05%	▲100	+0.06%	$1.77Mn
14	GLAZER CAPITAL, LLC	0001076809	149,544	1.81%	▼382	-0.25%	$1.55K
15	Crossingbridge Advisors, LLC	0001770024	140,189	1.69%	0	0.00%	$1.46Mn
16	Goldman Sachs Group Inc	0000886982	119,661	1.45%	▼119,661	-50.00%	$1.24Mn
17	Dakota Wealth Management	0001631353	69,500	0.84%	0	0.00%	$720.72K
18	TWO SIGMA INVESTMENTS, LP	0001179392	59,288	0.72%	▼25,982	-30.47%	$614.82K
19	Logan Stone Capital, LLC	0001535521	51,553	0.62%	▲1,500	+3.00%	$534.61K

Showing 1 to 20 of 26 holders