Horizon Space Acquisition-RTHSPRFPreferred / convertible

13F holders, Q4 2025 (December 31)
3holders −14
0new positions
14sold out
$0.03avg. 13F price*

At the end of Q4 2025, 3 institutions reported holding Horizon Space Acquisition-RT (HSPRF) in their 13F filings, down 14 from Q3 2025. 0 opened new positions and 14 sold out. The largest holders were Rivernorth Capital Management, LLC ($7K), Mint Tower Capital Management B.V. ($2K) and Flow Traders U.S. LLC ($1K).

Company
Horizon Space Acquisition-RT
CUSIP
G4619M125
Latest filing quarter
Q4 2025

History

Number of 13F holders

0510152025 Q1 2024: 21Q1 2024Q2 2024: 21Q2 2024Q3 2024: 17Q3 2024Q4 2024: 17Q4 2024Q1 2025: 16Q1 2025Q2 2025: 17Q2 2025Q3 2025: 17Q3 2025Q4 2025: 3Q4 2025

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions0$0
Exits14$642K

All 13F filers, Q3 2025 → Q4 2025: 1,243 shares bought and 3,999,509 shares sold, net −3,998,266 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 3 holders

Rivernorth Capital Management, LLC — No change 214,357 $7K
Mint Tower Capital Management B.V. — No change 75,000 $2K
Flow Traders U.S. LLC — Add +8.0% 16,725 $1K

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