New Positions
9 managers initiated
Top five by reported value
BEST SPAC I Acquistion Corp NASDAQ NMS - GLOBAL MARKET:BSAAU
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
9 new7 added12 reduced0 exited
Total Institutional Holders
28
as of 2025-12-31
Top Holder
MIZUHO SECURITIES USA LLC
$5.4M
Largest QoQ Increase
HEIGHTS CAPITAL MANAGEMENT, INC
+175,000 sh
Largest QoQ Decrease
MANGROVE PARTNERS
-107,038 sh
New Positions(9)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| HEIGHTS CAPITAL MANAGEMENT, INC | 175,000 | +175,000 | $1.8M | +$1.8M | — |
| BOOTHBAY FUND MANAGEMENT, LLC | 162,500 | +162,500 | $1.6M | +$1.6M | — |
| ARISTEIA CAPITAL LLC | 95,000 | +95,000 | $962.4K | +$962.4K | — |
| Westchester Capital Management, LLC | 50,000 | +50,000 | $506.5K | +$506.5K | — |
| L1 Global Manager Pty Ltd | 50,000 | +50,000 | $506.5K | +$506.5K | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 14,821 | +14,821 | $150.1K | +$150.1K | — |
| PenderFund Capital Management Ltd. | 11,800 | +11,800 | $119.5K | +$119.5K | — |
| TORONTO DOMINION BANK | 6,900 | +6,900 | $69.9K | +$69.9K | — |
| MORGAN STANLEY | 16 | +16 | $162 | +$162 | — |
Added To(7)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| WOLVERINE ASSET MANAGEMENT LLC | 525,982 | +149,612 | $5.3M | +$1.5M | 39.8% |
| Karpus Management, Inc. | 171,195 | +106,500 | $1.7M | +$1.1M | 164.6% |
| BERKLEY W R CORP | 325,255 | +26,672 | $3.3M | +$287.3K | 8.9% |
| Shaolin Capital Management LLC | 223,317 | +23,207 | $2.3M | +$251.1K | 11.6% |
| Dakota Wealth Management | 37,250 | +8,850 | $376.2K | +$91.1K | 31.2% |
| UBS Group AG | 294 | +262 | $3.0K | +$2.6K | 818.8% |
| GLAZER CAPITAL, LLC | 203,308 | +54,136 | $2.1K | +$555 | 36.3% |
Reduced(12)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MANGROVE PARTNERS | 163,810 | -107,038 | $1.7M | -$1.1M | -39.5% |
| Clear Street Group Inc. | 161,930 | -38,232 | $1.6M | -$371.3K | -19.1% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 400,000 | 0 | $4.0M | +$24.0K | 0.0% |
| Hudson Bay Capital Management LP | 275,000 | 0 | $2.8M | +$19.3K | 0.0% |
| Polar Asset Management Partners Inc. | 185,000 | 0 | $1.9M | +$14.8K | 0.0% |
| Radcliffe Capital Management, L.P. | 170,000 | 0 | $1.7M | +$11.9K | 0.0% |
| MMCAP International Inc. SPC | 125,000 | 0 | $1.3M | +$10.0K | 0.0% |
| AQR Arbitrage LLC | 114,034 | 0 | $1.2M | +$8.0K | 0.0% |
| MIZUHO SECURITIES USA LLC | 533,699 | -8,301 | $5.4M | -$3.3K | -1.5% |
| BNP PARIBAS ARBITRAGE, SNC | 35,966 | 0 | $363.3K | +$2.2K | 0.0% |
| Centiva Capital, LP | 25,000 | 0 | $253.3K | +$1.8K | 0.0% |
| Mint Tower Capital Management B.V. | 45,000 | 0 | $456 | +$4 | 0.0% |
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 % |
|---|---|---|---|---|
| MIZUHO SECURITIES USA LLC | 533,699 | $5.4M | -8,301 | -1.5% |
| WOLVERINE ASSET MANAGEMENT LLC | 525,982 | $5.3M | +149,612 | 39.8% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 400,000 | $4.0M | 0 | 0.0% |
| BERKLEY W R CORP | 325,255 | $3.3M | +26,672 | 8.9% |
| Hudson Bay Capital Management LP | 275,000 | $2.8M | 0 | 0.0% |
| Shaolin Capital Management LLC | 223,317 | $2.3M | +23,207 | 11.6% |
| Polar Asset Management Partners Inc. | 185,000 | $1.9M | 0 | 0.0% |
| HEIGHTS CAPITAL MANAGEMENT, INC | 175,000 | $1.8M | +175,000 | — |
| Karpus Management, Inc. | 171,195 | $1.7M | +106,500 | 164.6% |
| Radcliffe Capital Management, L.P. | 170,000 | $1.7M | 0 | 0.0% |
| MANGROVE PARTNERS | 163,810 | $1.7M | -107,038 | -39.5% |
| BOOTHBAY FUND MANAGEMENT, LLC | 162,500 | $1.6M | +162,500 | — |
| Clear Street Group Inc. | 161,930 | $1.6M | -38,232 | -19.1% |
| MMCAP International Inc. SPC | 125,000 | $1.3M | 0 | 0.0% |
| AQR Arbitrage LLC | 114,034 | $1.2M | 0 | 0.0% |
| ARISTEIA CAPITAL LLC | 95,000 | $962.4K | +95,000 | — |
| L1 Global Manager Pty Ltd | 50,000 | $506.5K | +50,000 | — |
| Westchester Capital Management, LLC | 50,000 | $506.5K | +50,000 | — |
| Dakota Wealth Management | 37,250 | $376.2K | +8,850 | 31.2% |
| BNP PARIBAS ARBITRAGE, SNC | 35,966 | $363.3K | 0 | 0.0% |
New & Closed Positions this quarter
Closed Positions
0 managers exited
Top five by prior-quarter value
No managers exited their positions this quarter.
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 BSAAU 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.