New Positions
4 managers initiated
Top five by reported value
- METEORA CAPITAL, LLC$1.0M
- Crossingbridge Advisors, LLC$261.5K
- ABC ARBITRAGE SA$156.9K
- Virtu Financial LLC$352
Plum Acquisition Corp. IV NGM:PLMKW
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 new8 added32 reduced2 exited
Total Institutional Holders
44
as of 2025-12-31
Top Holder
Westchester Capital Management, LLC
$12.8M
Largest QoQ Increase
Governors Lane LP
+399,900 sh
Largest QoQ Decrease
Hudson Bay Capital Management LP
-337,511 sh
New Positions(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| METEORA CAPITAL, LLC | 100,000 | +100,000 | $1.0M | +$1.0M | — |
| Crossingbridge Advisors, LLC | 25,000 | +25,000 | $261.5K | +$261.5K | — |
| ABC ARBITRAGE SA | 15,000 | +15,000 | $156.9K | +$156.9K | — |
| Virtu Financial LLC | 33,772 | +33,772 | $352 | +$352 | — |
Added To(8)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Governors Lane LP | 700,000 | +399,900 | $7.3M | +$4.2M | 133.3% |
| D. E. Shaw & Co., Inc. | 853,875 | +153,875 | $8.9M | +$1.7M | 22.0% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 369,581 | +115,831 | $3.9M | +$1.2M | 45.6% |
| Radcliffe Capital Management, L.P. | 449,055 | +23,725 | $4.7M | +$303.2K | 5.6% |
| MIZUHO SECURITIES USA LLC | 375,000 | +11,750 | $3.9M | +$177.6K | 3.2% |
| GOLDMAN SACHS GROUP INC | 339,592 | +22 | $3.5M | +$37.6K | 0.0% |
| MORGAN STANLEY | 56 | +49 | $584 | +$512 | 700.0% |
| GLAZER CAPITAL, LLC | 783,339 | +13,107 | $8.2K | +$221 | 1.7% |
Reduced(32)
Sold Out(2)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| BCK Capital Management LP | 0 | -103,313 | $0 | -$1.1M | — |
| DLD Asset Management, LP | 0 | -147,500 | $0 | -$39.8K | — |
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 % |
|---|---|---|---|---|
| Westchester Capital Management, LLC | 1,225,000 | $12.8M | 0 | 0.0% |
| AQR Arbitrage LLC | 960,428 | $10.0M | 0 | 0.0% |
| D. E. Shaw & Co., Inc. | 853,875 | $8.9M | +153,875 | 22.0% |
| BERKLEY W R CORP | 768,888 | $8.0M | 0 | 0.0% |
| Context Capital Management, LLC | 700,000 | $7.3M | 0 | 0.0% |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 700,000 | $7.3M | 0 | 0.0% |
| Governors Lane LP | 700,000 | $7.3M | +399,900 | 133.3% |
| Linden Advisors LP | 700,000 | $7.3M | 0 | 0.0% |
| Karpus Management, Inc. | 672,200 | $7.0M | -5,500 | -0.8% |
| ARISTEIA CAPITAL LLC | 651,175 | $6.8M | 0 | 0.0% |
| First Trust Capital Management L.P. | 650,000 | $6.8M | 0 | 0.0% |
| Hudson Bay Capital Management LP | 512,489 | $5.3M | -337,511 | -39.7% |
| WOLVERINE ASSET MANAGEMENT LLC | 505,754 | $5.3M | -138,115 | -21.4% |
| LMR Partners LLP | 500,000 | $5.2M | 0 | 0.0% |
| Magnetar Financial LLC | 500,000 | $5.2M | 0 | 0.0% |
| Alberta Investment Management Corp | 500,000 | $5.2M | 0 | 0.0% |
| TWO SIGMA INVESTMENTS, LP | 498,437 | $5.2M | 0 | 0.0% |
| Radcliffe Capital Management, L.P. | 449,055 | $4.7M | +23,725 | 5.6% |
| Periscope Capital Inc. | 415,959 | $4.3M | -29,541 | -6.6% |
| Polar Asset Management Partners Inc. | 400,000 | $4.2M | 0 | 0.0% |
New & Closed Positions this quarter
Closed Positions
2 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 PLMKW 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.