Mountain Lake Acquisition Corp. - MLAC
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TENOR CAPITAL MANAGEMENT Co., L.P. | History | No change | 2,000,000 | 21,060 | 0.32% | 0.29% | 1 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Magnetar Financial LLC | History | No change | 1,900,000 | 20,026 | 0.2% | 0.19% | 2 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| BERKLEY W R CORP | History | Added to | 1,877,833 | 19,773 | 1.06% | 0.18% | 3 | +1,515,300 | 417.98% | Q1 2026 | May 15, 2026 |
| MIZUHO SECURITIES USA LLC | History | Added to | 1,710,141 | 17,956 | 0.42% | 0.16% | 4 | +752,772 | 78.63% | Q1 2026 | May 11, 2026 |
| Polar Asset Management Partners Inc. | History | Added to | 1,497,259 | 15,766 | 0.31% | 0.2% | 5 | +17,324 | 1.17% | Q1 2026 | May 15, 2026 |
| AQR Arbitrage LLC | History | Added to | 1,405,969 | 14,804 | 0.24% | 0.31% | 6 | +262 | 0.02% | Q1 2026 | May 15, 2026 |
| First Trust Capital Management L.P. | History | No change | 980,393 | 10,323 | 0.54% | 0.62% | 7 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Alberta Investment Management Corp | History | No change | 980,000 | 10,319 | 0.06% | 0.06% | 8 | 0 | 0.0% | Q1 2026 | Apr 28, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Added to | 971,757 | 10,232 | 0.1% | 0.08% | 9 | +8,389 | 0.87% | Q1 2026 | May 04, 2026 |
| Westchester Capital Management, LLC | History | No change | 887,700 | 9,347 | 0.42% | 0.39% | 10 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| LINDEN ADVISORS LP | History | No change | 875,000 | 9,213 | 0.05% | 0.06% | 11 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| GLAZER CAPITAL, LLC | History | Added to | 856,946 | 9,024 | 0.19% | 0.19% | 12 | +170,254 | 24.79% | Q1 2026 | May 14, 2026 |
| Karpus Management, Inc. | History | No change | 620,220 | 6,530 | 0.2% | 0.2% | 13 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| CoinFund Management LLC | History | No change | 566,000 | 5,960 | 16.85% | 10.16% | 14 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | History | No change | 500,000 | 5,265 | 0.26% | 0.25% | 15 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| LMR Partners LLP | History | No change | 496,989 | 5,233 | 0.01% | 0.01% | 16 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Crossingbridge Advisors, LLC | History | New | 442,460 | 4,659 | 0.84% | — | 17 | +442,460 | New | Q1 2026 | May 14, 2026 |
| GOLDMAN SACHS GROUP INC | History | No change | 424,430 | 4,469 | 0.0% | 0.0% | 18 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| TORONTO DOMINION BANK | History | Reduced | 350,000 | 3,685 | 0.01% | 0.01% | 19 | -33,695 | -8.78% | Q1 2026 | May 15, 2026 |
| RLH Capital LLC | History | New | 312,540 | 3,291 | 1.67% | — | 20 | +312,540 | New | Q1 2026 | Apr 28, 2026 |
| WHITEBOX ADVISORS LLC | History | No change | 300,000 | 3,159 | 0.04% | 0.04% | 21 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Hudson Bay Capital Management LP | History | No change | 260,429 | 2,742 | 0.01% | 0.01% | 22 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| Shaolin Capital Management LLC | History | Reduced | 200,000 | 2,106 | 0.08% | 0.13% | 24 | -199,998 | -50.0% | Q1 2026 | May 15, 2026 |
| MOORE CAPITAL MANAGEMENT, LP | History | No change | 200,000 | 2,106 | 0.04% | 0.03% | 23 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Jain Global LLC | History | Reduced | 196,786 | 2,072 | 0.01% | 0.02% | 25 | -178,464 | -47.56% | Q1 2026 | May 15, 2026 |
| D. E. Shaw & Co., Inc. | History | No change | 193,702 | 2,039 | 0.0% | 0.0% | 26 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Radcliffe Capital Management, L.P. | History | No change | 193,057 | 2,032 | 0.15% | 0.11% | 27 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Ghisallo Capital Management LLC | History | No change | 200,000 | 2,021 | 0.06% | 0.09% | 28 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| UBS Group AG | History | Reduced | 170,936 | 1,801 | 0.0% | 0.0% | 29 | -88,786 | -34.19% | Q1 2026 | May 05, 2026 |
| L1 Global Manager Pty Ltd | History | No change | 170,000 | 1,790 | 1.2% | 1.16% | 30 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Quarry LP | History | Added to | 162,540 | 1,711 | 0.31% | 0.24% | 31 | +12,540 | 8.36% | Q1 2026 | May 15, 2026 |
| ARISTEIA CAPITAL, L.L.C. | History | No change | 150,000 | 1,579 | 0.03% | 0.03% | 32 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| PICTON MAHONEY ASSET MANAGEMENT | History | No change | 150,000 | 1,579 | 0.01% | 0.01% | 33 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| O'Connor Alternative Investments LLC | History | New | 149,912 | 1,578 | 0.14% | — | 34 | +149,912 | New | Q1 2026 | May 15, 2026 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | History | No change | 149,912 | 1,559 | 0.18% | 0.18% | 35 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 147,302 | 1,551 | 0.0% | 0.0% | 36 | -20,146 | -12.03% | Q1 2026 | May 15, 2026 |
| PERISCOPE CAPITAL INC. | History | Reduced | 125,000 | 1,316 | 0.15% | 0.3% | 37 | -125,000 | -50.0% | Q1 2026 | May 13, 2026 |
| DLD Asset Management, LP | History | No change | 124,750 | 1,313 | 0.12% | 0.1% | 38 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| Mint Tower Capital Management B.V. | History | No change | 100,000 | 1,053 | 0.09% | 0.12% | 39 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| Feynman Point Asset Management LLC | History | No change | 100,000 | 1,053 | 1.3% | 1.45% | 40 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| SkyView Investment Advisors, LLC | History | New | 50,000 | 528 | 0.07% | — | 41 | +50,000 | New | Q1 2026 | May 14, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 49,916 | 526 | 0.0% | 0.0% | 42 | +43 | 0.09% | Q1 2026 | May 13, 2026 |
| DELTEC ASSET MANAGEMENT LLC | History | No change | 40,000 | 421 | 0.08% | 0.07% | 43 | 0 | 0.0% | Q1 2026 | Apr 24, 2026 |
| Clear Street Group Inc. | History | No change | 36,699 | 386 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Wellspring Financial Advisors, LLC | History | No change | 35,000 | 368 | 0.03% | 0.03% | 45 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| FLOW TRADERS U.S. LLC | History | Reduced | 29,282 | 309 | 0.01% | 0.01% | 46 | -716 | -2.39% | Q1 2026 | May 15, 2026 |
| Rangeley Capital, LLC | History | New | 15,000 | 157 | 0.15% | — | 47 | +15,000 | New | Q1 2026 | May 15, 2026 |
| Schonfeld Strategic Advisors LLC | History | New | 14,623 | 153 | 0.0% | — | 48 | +14,623 | New | Q1 2026 | May 15, 2026 |
| Hara Capital LLC | History | No change | 1,250 | 13 | 0.01% | 0.01% | 49 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Closed out | 0 | 0 | — | 0.01% | — | -710,158 | -100.0% | Q1 2026 | May 15, 2026 |
| Decagon Asset Management LLP | History | Closed out | 0 | 0 | — | 2.63% | — | -657,592 | -100.0% | Q1 2026 | May 15, 2026 |
| METEORA CAPITAL, LLC | History | Closed out | 0 | 0 | — | 0.5% | — | -579,318 | -100.0% | Q1 2026 | May 15, 2026 |
| J. Goldman & Co LP | History | Closed out | 0 | 0 | — | 0.12% | — | -423,564 | -100.0% | Q1 2026 | May 15, 2026 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | History | Closed out | 0 | 0 | — | 0.01% | — | -20,371 | -100.0% | Q1 2026 | May 12, 2026 |
| MORGAN STANLEY | History | Reduced | 70 | 0 | — | — | — | -24 | -25.53% | Q1 2026 | May 15, 2026 |