New Positions
0 managers initiated
Top five by reported value
No new institutional positions this quarter.
Quartzsea Acquisition Corporation NGM:QSEAU
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
0 new6 added19 reduced0 exited
Total Institutional Holders
25
as of 2025-12-31
Top Holder
Karpus Management, Inc.
$23.2M
Largest QoQ Increase
RIVERNORTH CAPITAL MANAGEMENT, LLC
+102,256 sh
Largest QoQ Decrease
TWO SIGMA INVESTMENTS, LP
-98,858 sh
Added To(6)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 499,756 | +102,256 | $5.1M | +$1.1M | 25.7% |
| MIZUHO SECURITIES USA LLC | 676,753 | +34,976 | $6.8M | +$403.9K | 5.4% |
| BERKLEY W R CORP | 317,686 | +29,083 | $3.2M | +$326.4K | 10.1% |
| WOLVERINE ASSET MANAGEMENT LLC | 602,513 | +18,008 | $6.2M | +$242.7K | 3.1% |
| Shaolin Capital Management LLC | 176,586 | +1,586 | $1.8M | +$33.7K | 0.9% |
| MORGAN STANLEY | 38 | +7 | $389 | +$75 | 22.6% |
Reduced(19)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| TWO SIGMA INVESTMENTS, LP | 85,270 | -98,858 | $872.3K | -$992.9K | -53.7% |
| TORONTO DOMINION BANK | 241,975 | -25,000 | $2.5M | -$229.1K | -9.4% |
| Karpus Management, Inc. | 2,263,880 | -12,500 | $23.2M | +$99.8K | -0.5% |
| MANGROVE PARTNERS | 408,154 | 0 | $4.2M | +$40.8K | 0.0% |
| AQR Arbitrage LLC | 369,960 | 0 | $3.8M | +$37.0K | 0.0% |
| Westchester Capital Management, LLC | 366,605 | 0 | $3.8M | +$36.7K | 0.0% |
| Polar Asset Management Partners Inc. | 350,000 | 0 | $3.6M | +$35.0K | 0.0% |
| Linden Advisors LP | 175,000 | 0 | $1.8M | +$17.5K | 0.0% |
| Hudson Bay Capital Management LP | 175,000 | 0 | $1.8M | +$17.5K | 0.0% |
| D. E. Shaw & Co., Inc. | 170,012 | 0 | $1.7M | +$17.0K | 0.0% |
| GOLDMAN SACHS GROUP INC | 119,661 | 0 | $1.2M | +$12.0K | 0.0% |
| Dakota Wealth Management | 69,500 | 0 | $711.0K | +$7.0K | 0.0% |
| Logan Stone Capital, LLC | 50,053 | 0 | $512.0K | +$5.0K | 0.0% |
| Radcliffe Capital Management, L.P. | 26,553 | 0 | $271.6K | +$2.7K | 0.0% |
| Clear Street Group Inc. | 24,693 | 0 | $252.6K | +$2.5K | 0.0% |
| Warberg Asset Management LLC | 24,000 | 0 | $245.5K | +$2.4K | 0.0% |
| Wellspring Financial Advisors, LLC | 17,700 | 0 | $181.1K | +$1.8K | 0.0% |
| GLAZER CAPITAL, LLC | 149,926 | -13,827 | $1.5K | -$125 | -8.4% |
| Crossingbridge Advisors, LLC | 140,189 | 0 | $140.2K | $0 | 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 % |
|---|---|---|---|---|
| Karpus Management, Inc. | 2,263,880 | $23.2M | -12,500 | -0.5% |
| MIZUHO SECURITIES USA LLC | 676,753 | $6.8M | +34,976 | 5.4% |
| WOLVERINE ASSET MANAGEMENT LLC | 602,513 | $6.2M | +18,008 | 3.1% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 499,756 | $5.1M | +102,256 | 25.7% |
| MANGROVE PARTNERS | 408,154 | $4.2M | 0 | 0.0% |
| AQR Arbitrage LLC | 369,960 | $3.8M | 0 | 0.0% |
| Westchester Capital Management, LLC | 366,605 | $3.8M | 0 | 0.0% |
| Polar Asset Management Partners Inc. | 350,000 | $3.6M | 0 | 0.0% |
| BERKLEY W R CORP | 317,686 | $3.2M | +29,083 | 10.1% |
| TORONTO DOMINION BANK | 241,975 | $2.5M | -25,000 | -9.4% |
| Shaolin Capital Management LLC | 176,586 | $1.8M | +1,586 | 0.9% |
| Hudson Bay Capital Management LP | 175,000 | $1.8M | 0 | 0.0% |
| Linden Advisors LP | 175,000 | $1.8M | 0 | 0.0% |
| D. E. Shaw & Co., Inc. | 170,012 | $1.7M | 0 | 0.0% |
| GOLDMAN SACHS GROUP INC | 119,661 | $1.2M | 0 | 0.0% |
| TWO SIGMA INVESTMENTS, LP | 85,270 | $872.3K | -98,858 | -53.7% |
| Dakota Wealth Management | 69,500 | $711.0K | 0 | 0.0% |
| Logan Stone Capital, LLC | 50,053 | $512.0K | 0 | 0.0% |
| Radcliffe Capital Management, L.P. | 26,553 | $271.6K | 0 | 0.0% |
| Clear Street Group Inc. | 24,693 | $252.6K | 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 QSEAU 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.