Horizon Space Acquisition-28HSPWFPreferred / convertible

13F holders, Q2 2025 (June 30)
18holders +1
1new positions
1sold out
$0.04avg. 13F price*

At the end of Q2 2025, 18 institutions reported holding Horizon Space Acquisition-28 (HSPWF) in their 13F filings, up 1 from Q1 2025. 1 opened new positions and 1 sold out. The largest holders were Walleye Trading LLC ($23K), Hudson Bay Capital Management LP ($17K) and Shaolin Capital Management LLC ($15K).

Company
Horizon Space Acquisition-28
CUSIP
G4619M117
Latest filing quarter
Q1 2026

History

Number of 13F holders

0510152025 Q1 2024: 21Q1 2024Q2 2024: 22Q2 2024Q3 2024: 19Q3 2024Q4 2024: 18Q4 2024Q1 2025: 17Q1 2025Q2 2025: 18Q2 2025Q3 2025: 18Q3 2025Q4 2025: 3Q4 2025Q1 2026: 1Q1 2026

Total Exit/New Position Q1 2025 → Q2 2025

InstitutionsTotal Value
New Positions1$5K
Exits1$183

All 13F filers, Q1 2025 → Q2 2025: 324,398 shares bought and 17,269 shares sold, net +307,129 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 18 holders

Walleye Trading LLC — No change 562,769 $23K
Hudson Bay Capital Management LP — No change 419,586 $17K
Shaolin Capital Management LLC — No change 375,000 $15K
Harraden Circle Investments, LLC — No change 321,694 $13K
Clear Street LLC — Reduce -1.6% 303,960 $12K
Polar Asset Management Partners Inc. — No change 275,000 $11K
Yakira Capital Management, Inc. — No change 250,000 $10K
AQR Arbitrage LLC — No change 246,133 $10K
Weiss Asset Management LP — No change 240,000 $10K
Rivernorth Capital Management, LLC — No change 214,357 $9K
Wolverine Asset Management LLC — Reduce -0.9% 213,025 $9K
Meteora Capital, LLC — Add +1639.1% 212,202 $8K
Periscope Capital Inc. — No change 180,900 $7K
Toronto Dominion Bank — New 124,398 $5K
LMR Partners LLP — No change 100,000 $4K
Mint Tower Capital Management B.V. — No change 75,000 $3K
GABELLI & Co INVESTMENT ADVISERS, INC. — No change 67,700 $3K
Mizuho Securities USA LLC — — 50,000 $500

"% of holder's portfolio" is HSPWF's weight in each manager's 13F, not the share of Horizon Space Acquisition-28 the manager owns.