New Positions
4 managers initiated
Top five by reported value
Melar Acquisition Corp. I NGM:MACIW
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
4 new5 added29 reduced3 exited
Total Institutional Holders
38
as of 2025-12-31
Top Holder
LMR Partners LLP
$15.8M
Largest QoQ Increase
L1 Global Manager Pty Ltd
+335,000 sh
Largest QoQ Decrease
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS
-400,000 sh
New Positions(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| L1 Global Manager Pty Ltd | 335,000 | +335,000 | $3.6M | +$3.6M | — |
| Crossingbridge Advisors, LLC | 211,535 | +211,535 | $2.2M | +$2.2M | — |
| RiverPark Advisors, LLC | 186,535 | +186,535 | $2.0M | +$2.0M | — |
| ABC ARBITRAGE SA | 20,000 | +20,000 | $212.6K | +$212.6K | — |
Added To(5)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| BERKLEY W R CORP | 868,489 | +222,669 | $9.2M | +$2.5M | 34.5% |
| MIZUHO SECURITIES USA LLC | 1,027,274 | +135,970 | $10.8M | +$1.5M | 15.3% |
| WOLVERINE ASSET MANAGEMENT LLC | 1,028,689 | +102,361 | $10.9M | +$1.2M | 11.1% |
| TORONTO DOMINION BANK | 133,198 | +13,158 | $1.4M | +$155.5K | 11.0% |
| MORGAN STANLEY | 61 | +42 | $648 | +$448 | 221.1% |
Reduced(29)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| PICTON MAHONEY ASSET MANAGEMENT | 325,000 | 0 | $3.5M | +$3.5M | 0.0% |
| TWO SIGMA INVESTMENTS, LP | 218,703 | -156,297 | $2.3M | -$1.6M | -41.7% |
| HEIGHTS CAPITAL MANAGEMENT, INC | 52,161 | -76,571 | $554.5K | -$798.5K | -59.5% |
| Periscope Capital Inc. | 183,612 | -51,800 | $2.0M | -$522.2K | -22.0% |
| Quarry LP | 11 | -23,700 | $117 | -$248.8K | -100.0% |
| LMR Partners LLP | 1,485,000 | 0 | $15.8M | +$193.1K | 0.0% |
| First Trust Capital Management L.P. | 1,400,000 | 0 | $14.9M | +$182.0K | 0.0% |
| Polar Asset Management Partners Inc. | 1,485,000 | 0 | $15.8M | +$163.3K | 0.0% |
| Karpus Management, Inc. | 1,145,155 | -1,500 | $12.2M | +$133.1K | -0.1% |
| AQR Arbitrage LLC | 997,179 | 0 | $10.6M | +$119.7K | 0.0% |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 550 | -6,970 | $5.8K | -$73.1K | -92.7% |
| D. E. Shaw & Co., Inc. | 576,328 | 0 | $6.1M | +$69.2K | 0.0% |
| Cable Car Capital, LP | 492,500 | 0 | $5.2M | +$64.0K | 0.0% |
| Radcliffe Capital Management, L.P. | 426,939 | 0 | $4.5M | +$55.5K | 0.0% |
| Westchester Capital Management, LLC | 424,707 | 0 | $4.5M | +$51.0K | 0.0% |
| Magnetar Financial LLC | 371,250 | 0 | $3.9M | +$44.5K | 0.0% |
| Alberta Investment Management Corp | 325,000 | 0 | $3.5M | +$39.0K | 0.0% |
| Hudson Bay Capital Management LP | 325,000 | 0 | $3.5M | +$39.0K | 0.0% |
| GOLDMAN SACHS GROUP INC | 299,331 | 0 | $3.2M | +$38.9K | 0.0% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 299,140 | -407 | $3.2M | +$34.6K | -0.1% |
| Wealthspring Capital LLC | 455,716 | -3,209 | $4.8M | +$25.5K | -0.7% |
| HGC Investment Management Inc. | 175,000 | 0 | $1.9M | +$22.8K | 0.0% |
| DELTEC ASSET MANAGEMENT LLC | 100,000 | 0 | $1.1M | +$13.0K | 0.0% |
| Dakota Wealth Management | 37,500 | -1,500 | $398.6K | -$10.9K | -3.8% |
| MOORE CAPITAL MANAGEMENT, LP | 75,000 | 0 | $797.3K | +$9.8K | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 20,514 | 0 | $218.1K | +$2.5K | 0.0% |
| Tuttle Capital Management, LLC | 15,000 | 0 | $159.4K | +$1.9K | 0.0% |
| GLAZER CAPITAL, LLC | 556,278 | -96 | $5.9K | +$71 | -0.0% |
| HRT FINANCIAL LP | 10,000 | 0 | $106 | +$1 | 0.0% |
Sold Out(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 0 | -400,000 | $0 | -$4.2M | — |
| BCK Capital Management LP | 0 | -68,874 | $0 | -$723.2K | — |
| Sandia Investment Management LP | 0 | -23,711 | $0 | -$249.0K | — |
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 % |
|---|---|---|---|---|
| Polar Asset Management Partners Inc. | 1,485,000 | $15.8M | 0 | 0.0% |
| LMR Partners LLP | 1,485,000 | $15.8M | 0 | 0.0% |
| First Trust Capital Management L.P. | 1,400,000 | $14.9M | 0 | 0.0% |
| Karpus Management, Inc. | 1,145,155 | $12.2M | -1,500 | -0.1% |
| WOLVERINE ASSET MANAGEMENT LLC | 1,028,689 | $10.9M | +102,361 | 11.1% |
| MIZUHO SECURITIES USA LLC | 1,027,274 | $10.8M | +135,970 | 15.3% |
| AQR Arbitrage LLC | 997,179 | $10.6M | 0 | 0.0% |
| BERKLEY W R CORP | 868,489 | $9.2M | +222,669 | 34.5% |
| D. E. Shaw & Co., Inc. | 576,328 | $6.1M | 0 | 0.0% |
| Cable Car Capital, LP | 492,500 | $5.2M | 0 | 0.0% |
| Wealthspring Capital LLC | 455,716 | $4.8M | -3,209 | -0.7% |
| Radcliffe Capital Management, L.P. | 426,939 | $4.5M | 0 | 0.0% |
| Westchester Capital Management, LLC | 424,707 | $4.5M | 0 | 0.0% |
| Magnetar Financial LLC | 371,250 | $3.9M | 0 | 0.0% |
| L1 Global Manager Pty Ltd | 335,000 | $3.6M | +335,000 | — |
| Hudson Bay Capital Management LP | 325,000 | $3.5M | 0 | 0.0% |
| Alberta Investment Management Corp | 325,000 | $3.5M | 0 | 0.0% |
| PICTON MAHONEY ASSET MANAGEMENT | 325,000 | $3.5M | 0 | 0.0% |
| GOLDMAN SACHS GROUP INC | 299,331 | $3.2M | 0 | 0.0% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 299,140 | $3.2M | -407 | -0.1% |
New & Closed Positions this quarter
Closed Positions
3 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 MACIW 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.