Horizon Space Acquisition I Corp.
HSPOF- Exchange
- OTC
- Industry
- Blank Checks
- SEC CIK
- 0001946021
No open-market purchases or sales by Horizon Space Acquisition I Corp. insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Horizon Space Acquisition I Corp. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 13
- +2 vs. Q2 2025
- Shares held
- 1.74M
- −2.07K (−0.1%) vs. Q2 2025
- Total value
- $21.4M
- +$501.5K (+2.4%) vs. Q2 2025
- New holders
- 2
- 3 more added
- Sold out
- 0
- 3 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting HSPOF on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 13 | $21.4M |
| Q2 2025 | 12 | $20.9M |
| Q1 2025 | 11 | $21.0M |
| Q4 2024 | 8 | $21.2M |
| Q3 2024 | 22 | $61.4M |
| Q2 2024 | 25 | $60.8M |
| Q1 2024 | 25 | $58.3M |
| Q4 2023 | 28 | $64.2M |
| Q3 2023 | 31 | $65.7M |
| Q2 2023 | 27 | $57.0M |
| Q1 2023 | 25 | $61.2M |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Horizon Space Acquisition I Corp.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mizuho Securities USA LLC | 375,209 | $4.59M | 0.09% | 00.0% | Unchanged |
| Wolverine Asset Management LLC | 365,655 | $4.50M | 0.07% | −1,394−0.4% | Reduced |
| Vivaldi Asset Management, LLC | 300,000 | $3.70M | 0.24% | 00.0% | Unchanged |
| Westchester Capital Management, LLC | 297,000 | $3.66M | 0.19% | 00.0% | Unchanged |
| Berkley W R Corp | 205,129 | $2.53M | 0.16% | 00.0% | Unchanged |
| Polar Asset Management Partners Inc. | 150,000 | $1.85M | 0.04% | 00.0% | Unchanged |
| Quarry LP | 17,237 | $212.9K | 0.05% | +338+2.0% | Added |
| UBS Group AG | 11,649 | $143.5K | 0.00% | −254−2.1% | Reduced |
| Toronto Dominion Bank | 10,000 | $123.2K | 0.00% | −6,382−39.0% | Reduced |
| Clear Street Group Inc. | 4,764 | $58.7K | 0.00% | +4,764 | New |
| Crossingbridge Advisors, LLC | 633 | $7.80K | 0.00% | +633 | New |
| PenderFund Capital Management Ltd. | 269 | $3.31K | 0.00% | +217+417.3% | Added |
| Morgan Stanley | 15 | $185 | 0.00% | +5+50.0% | Added |
| Clear Street LLC | – | – | – | – | Not filed |