Quartzsea Acquisition Corp (QSEA) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

10,628,233Shares Outstanding

2,137,080Shares held by institutions

$22,011,924Value of institutional holdings

70.58%Institutional ownership %

-4.02%Shares Changed QoQ

25No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Quartzsea Acquisition Corp (NASDAQ:QSEA) currently has 25 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

These investors collectively held 70.6% of the company's total shares outstanding in December 2025, down from 73.5% in September 2025.
In percentage terms, this reflects as a holdings change of -4.02% quarter on quarter, and an unavailable change year over year.
Of these 25 institutional investors, 6 increased their holdings in Quartzsea Acquisition, while 5 of them reduced positions, and 14 investors maintained their exposure.
The aggregate institutional position in Quartzsea Acquisition now stands at 7.50Mn shares as of December 2025, after investors decreased their holdings (down by 314.27K shares quarter on quarter which is down N/A shares year over year).
With 2.26Mn shares, Karpus Management, Inc. commands the largest institutional position in Quartzsea Acquisition as of December 31, 2025, equating to 21.30% of the company.
Among the most significant buyers of Quartzsea Acquisition during December 2025 were RIVERNORTH CAPITAL MANAGEMENT, LLC (102.26K), MIZUHO SECURITIES USA LLC (34.98K), BERKLEY W R CORP (29.08K), WOLVERINE ASSET MANAGEMENT LLC (18.01K), Shaolin Capital Management LLC (1.59K).
Leading sellers of Quartzsea Acquisition stock in December 2025 included Polar Asset Management Partners Inc. (350.00K), TWO SIGMA INVESTMENTS, LP (98.86K), TORONTO DOMINION BANK (25.00K), GLAZER CAPITAL, LLC (13.83K), Karpus Management, Inc. (12.50K).
The top 10 institutional holders of Quartzsea Acquisition for the quarter ending December 2025 included Karpus Management, Inc. (2.26Mn), MIZUHO SECURITIES USA LLC (676.75K), WOLVERINE ASSET MANAGEMENT LLC (602.51K), RIVERNORTH CAPITAL MANAGEMENT, LLC (499.76K), MANGROVE PARTNERS IM, LLC (408.15K), AQR Arbitrage LLC (369.96K), Westchester Capital Management, LLC (366.61K), Polar Asset Management Partners Inc. (350.00K), BERKLEY W R CORP (317.69K), TORONTO DOMINION BANK (241.97K).

25 Institutional Holders

2,137,080 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
Karpus Management, Inc.	31 Dec, 2025	2,263,880	-12,500	-0.55%	$23,159,492.00
MIZUHO SECURITIES USA LLC	31 Dec, 2025	676,753	34,976	5.45%	$6,835,502.00
WOLVERINE ASSET MANAGEMENT LLC	31 Dec, 2025	602,513	18,008	3.08%	$6,163,708.00
RIVERNORTH CAPITAL MANAGEMENT, LLC	31 Dec, 2025	499,756	102,256	25.72%	$5,112,504.00
MANGROVE PARTNERS IM, LLC	31 Dec, 2025	408,154	0	0.00%	$4,175,415.00
AQR Arbitrage LLC	31 Dec, 2025	369,960	0	0.00%	$3,792,090.00
Westchester Capital Management, LLC	31 Dec, 2025	366,605	0	0.00%	$3,757,702.00
Polar Asset Management Partners Inc.	31 Dec, 2025	350,000	-350,000	-50.00%	$3,580,500.00
BERKLEY W R CORP	31 Dec, 2025	317,686	29,083	10.08%	$3,249,928.00
TORONTO DOMINION BANK	31 Dec, 2025	241,975	-25,000	-9.36%	$2,475,404.00
Shaolin Capital Management LLC	31 Dec, 2025	176,586	1,586	0.91%	$1,806,475.00
Hudson Bay Capital Management LP	31 Dec, 2025	175,000	0	0.00%	$1,793,750.00
LINDEN ADVISORS LP	31 Dec, 2025	175,000	0	0.00%	$1,793,750.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	170,012	0	0.00%	$1,742,623.00
GLAZER CAPITAL, LLC	31 Dec, 2025	149,926	-13,827	-8.44%	$1,534.00
Crossingbridge Advisors, LLC	31 Dec, 2025	140,189	0	0.00%	$140,189.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	119,661	0	0.00%	$1,224,132.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	85,270	-98,858	-53.69%	$872,312.00
Dakota Wealth Management	31 Dec, 2025	69,500	0	0.00%	$710,985.00
Logan Stone Capital, LLC	31 Dec, 2025	50,053	0	0.00%	$512,042.00

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