Horizon Space Acquisition II Corp. - Ordinary shares, par value $0.0001 per share (HSPT) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2025 to Q4 2025

Type / Class
Equity / Ordinary shares, par value $0.0001 per share
Symbol
HSPT on Nasdaq
Shares outstanding
9,115,942
Price per share
$10.55
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
6,157,873
Total reported value
$64,753,110
% of total 13F portfolios
0%
Share change
+182,107
Value change
+$1,905,503
Number of holders
22
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Horizon Space Acquisition II Corp. - Ordinary shares, par value $0.0001 per share (HSPT) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BERKLEY W R CORP 7.4% +28% $6,905,303 +$1,561,016 674,346 +29% W. R. Berkley Corporation 30 Jun 2025
MIZUHO FINANCIAL GROUP INC 6.9% 0% $6,440,960 +$40,407 629,000 +0.63% Mizuho Financial Group, Inc. 30 Jun 2025
WOLVERINE ASSET MANAGEMENT LLC 6.9% $6,301,269 622,655 WOLVERINE ASSET MANAGEMENT LLC 31 Mar 2025
Polar Asset Management Partners Inc. 5.8% $5,313,000 525,000 Polar Asset Management Partners Inc. 31 Mar 2025
BARCLAYS PLC 5.1% $4,731,485 467,538 Barclays PLC 31 Mar 2025
AQR CAPITAL MANAGEMENT LLC 4.7% -23% $4,298,581 -$1,267,419 424,761 -23% AQR Capital Management, LLC 31 Mar 2025

As of 31 Dec 2025, 22 institutional investors reported holding 6,157,873 shares of Horizon Space Acquisition II Corp. - Ordinary shares, par value $0.0001 per share (HSPT). This represents 68% of the company’s total 9,115,942 outstanding shares.

Top 22 Institutional Shareholders

The largest institutional shareholders of Horizon Space Acquisition II Corp. - Ordinary shares, par value $0.0001 per share (HSPT) together control 68% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BERKLEY W R CORP 7.9% 722,015 -0.04% 0.43% $7,610,038
MIZUHO SECURITIES USA LLC 7.6% 696,145 +9.6% 0.12% $7,178,680
WOLVERINE ASSET MANAGEMENT LLC 7% 641,151 -2.3% 0.1% $6,757,732
RIVERNORTH CAPITAL MANAGEMENT, LLC 6.5% 592,400 +39% 0.3% $6,243,896
BOOTHBAY FUND MANAGEMENT, LLC 6.3% 574,990 0% 0.16% $6,063,270
Polar Asset Management Partners Inc. 5.8% 525,000 0% 0.11% $5,536,125
AQR Arbitrage LLC 4.5% 414,354 0% 0.09% $4,367,291
Westchester Capital Management, LLC 4.4% 404,900 0% 0.2% $4,267,646
Hudson Bay Capital Management LP 4.4% 400,000 0% 0.02% $4,216,000
D. E. Shaw & Co., Inc. 2.7% 250,000 0% 0% $2,635,000
TWO SIGMA INVESTMENTS, LP 2.4% 217,499 0% 0% $2,292,439
TORONTO DOMINION BANK 2.1% 191,614 -13% 0% $2,020,570
Glazer Capital, LLC 1.8% 162,346 -7.3% 0.05% $1,711,000
L1 Global Manager Pty Ltd 1.6% 150,000 0% 1% $1,581,750
GOLDMAN SACHS GROUP INC 1.4% 125,339 0% 0% $1,321,073
Clear Street Group Inc. 0.52% 47,072 +22% 0% $496,374
HEIGHTS CAPITAL MANAGEMENT, INC 0.22% 20,000 0% 0.08% $210,800
Radcliffe Capital Management, L.P. 0.16% 15,017 0% 0.01% $158,655
Quarry LP 0.05% 4,957 0.01% $52,371
UBS Group AG 0.03% 2,990 -29% 0% $31,515
MORGAN STANLEY 0% 48 +14% 0% $506
METEORA CAPITAL, LLC 0% 36 0% $379

Institutional Holders of Horizon Space Acquisition II Corp. - Ordinary shares, par value $0.0001 per share (HSPT) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 6,157,873 $64,753,110 +$1,905,503 $10.54 22
2025 Q3 6,420,756 $66,428,744 +$4,150,465 $10.36 21
2025 Q2 5,964,405 $60,929,993 +$9,405,102 $10.22 19
2025 Q1 5,041,584 $50,888,557 +$50,888,557 $10.10 14