New Positions
3 managers initiated
Top five by reported value
- L1 Global Manager Pty Ltd$1.6M
- Quarry LP$52.4K
- METEORA CAPITAL, LLC$379
Horizon Space Acquisition II Corp NASDAQ NMS - GLOBAL MARKET:HSPTU
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
3 new4 added15 reduced1 exited
Total Institutional Holders
22
as of 2025-12-31
Top Holder
BERKLEY W R CORP
$7.6M
Largest QoQ Increase
RIVERNORTH CAPITAL MANAGEMENT, LLC
+165,000 sh
Largest QoQ Decrease
ATW SPAC MANAGEMENT LLC
-574,990 sh
New Positions(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| L1 Global Manager Pty Ltd | 150,000 | +150,000 | $1.6M | +$1.6M | — |
| Quarry LP | 4,957 | +4,957 | $52.4K | +$52.4K | — |
| METEORA CAPITAL, LLC | 36 | +36 | $379 | +$379 | — |
Added To(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 592,400 | +165,000 | $6.2M | +$1.8M | 38.6% |
| MIZUHO SECURITIES USA LLC | 696,145 | +61,145 | $7.2M | +$638.1K | 9.6% |
| Clear Street Group Inc. | 47,072 | +8,632 | $496.4K | +$98.1K | 22.4% |
| MORGAN STANLEY | 48 | +6 | $506 | +$72 | 14.3% |
Reduced(15)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| TORONTO DOMINION BANK | 191,614 | -28,386 | $2.0M | -$258.6K | -12.9% |
| HEIGHTS CAPITAL MANAGEMENT, INC | 20,000 | -20,000 | $210.8K | -$203.6K | -50.0% |
| BERKLEY W R CORP | 722,015 | -288 | $7.6M | +$141.4K | -0.0% |
| BOOTHBAY FUND MANAGEMENT, LLC | 574,990 | 0 | $6.1M | +$109.2K | 0.0% |
| Polar Asset Management Partners Inc. | 525,000 | 0 | $5.5M | +$97.1K | 0.0% |
| AQR Arbitrage LLC | 414,354 | 0 | $4.4M | +$82.9K | 0.0% |
| Westchester Capital Management, LLC | 404,900 | 0 | $4.3M | +$81.0K | 0.0% |
| Hudson Bay Capital Management LP | 400,000 | 0 | $4.2M | +$72.0K | 0.0% |
| D. E. Shaw & Co., Inc. | 250,000 | 0 | $2.6M | +$45.0K | 0.0% |
| TWO SIGMA INVESTMENTS, LP | 217,499 | 0 | $2.3M | +$43.5K | 0.0% |
| WOLVERINE ASSET MANAGEMENT LLC | 641,151 | -15,038 | $6.8M | -$40.4K | -2.3% |
| GOLDMAN SACHS GROUP INC | 125,339 | 0 | $1.3M | +$25.1K | 0.0% |
| UBS Group AG | 2,990 | -1,204 | $31.5K | -$11.9K | -28.7% |
| Radcliffe Capital Management, L.P. | 15,017 | 0 | $158.7K | +$3.2K | 0.0% |
| GLAZER CAPITAL, LLC | 162,346 | -12,753 | $1.7K | -$100 | -7.3% |
Sold Out(1)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| ATW SPAC MANAGEMENT LLC | 0 | -574,990 | $0 | -$6.0M | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| BERKLEY W R CORP | 722,015 | $7.6M | -288 | -0.0% |
| MIZUHO SECURITIES USA LLC | 696,145 | $7.2M | +61,145 | 9.6% |
| WOLVERINE ASSET MANAGEMENT LLC | 641,151 | $6.8M | -15,038 | -2.3% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 592,400 | $6.2M | +165,000 | 38.6% |
| BOOTHBAY FUND MANAGEMENT, LLC | 574,990 | $6.1M | 0 | 0.0% |
| Polar Asset Management Partners Inc. | 525,000 | $5.5M | 0 | 0.0% |
| AQR Arbitrage LLC | 414,354 | $4.4M | 0 | 0.0% |
| Westchester Capital Management, LLC | 404,900 | $4.3M | 0 | 0.0% |
| Hudson Bay Capital Management LP | 400,000 | $4.2M | 0 | 0.0% |
| D. E. Shaw & Co., Inc. | 250,000 | $2.6M | 0 | 0.0% |
| TWO SIGMA INVESTMENTS, LP | 217,499 | $2.3M | 0 | 0.0% |
| TORONTO DOMINION BANK | 191,614 | $2.0M | -28,386 | -12.9% |
| L1 Global Manager Pty Ltd | 150,000 | $1.6M | +150,000 | — |
| GOLDMAN SACHS GROUP INC | 125,339 | $1.3M | 0 | 0.0% |
| Clear Street Group Inc. | 47,072 | $496.4K | +8,632 | 22.4% |
| HEIGHTS CAPITAL MANAGEMENT, INC | 20,000 | $210.8K | -20,000 | -50.0% |
| Radcliffe Capital Management, L.P. | 15,017 | $158.7K | 0 | 0.0% |
| Quarry LP | 4,957 | $52.4K | +4,957 | — |
| UBS Group AG | 2,990 | $31.5K | -1,204 | -28.7% |
| GLAZER CAPITAL, LLC | 162,346 | $1.7K | -12,753 | -7.3% |
New & Closed Positions this quarter
Closed Positions
1 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for HSPTU against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.