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 | Added to | 2,000,000 | 20,800 | 0.29% | 0.07% | 1 | +1,500,000 | 300.0% | Q4 2025 | Feb 17, 2026 |
| Magnetar Financial LLC | History | No change | 1,900,000 | 19,760 | 0.19% | 0.12% | 2 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Polar Asset Management Partners Inc. | History | New | 1,479,935 | 15,391 | 0.2% | — | 3 | +1,479,935 | New | Q4 2025 | Feb 17, 2026 |
| AQR Arbitrage LLC | History | Reduced | 1,405,707 | 14,619 | 0.31% | 0.39% | 4 | -94,199 | -6.28% | Q4 2025 | Feb 17, 2026 |
| First Trust Capital Management L.P. | History | Reduced | 980,393 | 10,196 | 0.62% | 0.67% | 5 | -24,607 | -2.45% | Q4 2025 | Feb 13, 2026 |
| Alberta Investment Management Corp | History | No change | 980,000 | 10,192 | 0.06% | 0.07% | 6 | 0 | 0.0% | Q4 2025 | Feb 19, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Reduced | 963,368 | 10,019 | 0.08% | 0.13% | 7 | -679,343 | -41.35% | Q4 2025 | Feb 02, 2026 |
| MIZUHO SECURITIES USA LLC | History | Added to | 957,369 | 9,926 | 0.16% | 0.09% | 8 | +529,102 | 123.54% | Q4 2025 | Feb 09, 2026 |
| Westchester Capital Management, LLC | History | Reduced | 887,700 | 9,232 | 0.39% | 0.56% | 9 | -294,571 | -24.92% | Q4 2025 | Feb 13, 2026 |
| LINDEN ADVISORS LP | History | No change | 875,000 | 9,100 | 0.06% | 0.06% | 10 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 710,158 | 7,385 | 0.01% | 0.01% | 11 | -51,092 | -6.71% | Q4 2025 | Feb 17, 2026 |
| GLAZER CAPITAL, LLC | History | Added to | 686,692 | 7,142 | 0.19% | 0.22% | 12 | +62,080 | 9.94% | Q4 2025 | Feb 13, 2026 |
| Decagon Asset Management LLP | History | New | 657,592 | 6,838 | 2.63% | — | 13 | +657,592 | New | Q4 2025 | Feb 17, 2026 |
| Karpus Management, Inc. | History | Reduced | 620,220 | 6,450 | 0.2% | 0.22% | 14 | -50,000 | -7.46% | Q4 2025 | Feb 17, 2026 |
| METEORA CAPITAL, LLC | History | New | 579,318 | 6,024 | 0.5% | — | 15 | +579,318 | New | Q4 2025 | Feb 17, 2026 |
| CoinFund Management LLC | History | New | 566,000 | 5,909 | 10.16% | — | 16 | +566,000 | New | Q4 2025 | Feb 17, 2026 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | History | No change | 500,000 | 5,200 | 0.25% | 0.29% | 17 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| LMR Partners LLP | History | Reduced | 496,989 | 5,168 | 0.01% | 0.02% | 18 | -3,011 | -0.6% | Q4 2025 | Feb 17, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 424,430 | 4,414 | 0.0% | 0.0% | 19 | -21,664 | -4.86% | Q4 2025 | Mar 25, 2026 |
| J. Goldman & Co LP | History | New | 423,564 | 4,405 | 0.12% | — | 20 | +423,564 | New | Q4 2025 | Feb 17, 2026 |
| Shaolin Capital Management LLC | History | New | 399,998 | 4,159 | 0.13% | — | 21 | +399,998 | New | Q4 2025 | Feb 17, 2026 |
| TORONTO DOMINION BANK | History | Added to | 383,695 | 3,990 | 0.01% | 0.0% | 22 | +227,048 | 144.94% | Q4 2025 | Feb 17, 2026 |
| Jain Global LLC | History | Reduced | 375,250 | 3,902 | 0.02% | 0.02% | 23 | -124,750 | -24.95% | Q4 2025 | Feb 17, 2026 |
| BERKLEY W R CORP | History | Added to | 362,533 | 3,770 | 0.18% | 0.13% | 24 | +144,473 | 66.25% | Q4 2025 | Feb 13, 2026 |
| WHITEBOX ADVISORS LLC | History | No change | 300,000 | 3,120 | 0.04% | 0.05% | 25 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Hudson Bay Capital Management LP | History | Reduced | 260,429 | 2,708 | 0.01% | 0.02% | 26 | -439,571 | -62.8% | Q4 2025 | Feb 13, 2026 |
| UBS Group AG | History | Added to | 259,722 | 2,703 | 0.0% | 0.0% | 27 | +196,351 | 309.84% | Q4 2025 | Jan 29, 2026 |
| PERISCOPE CAPITAL INC. | History | Reduced | 250,000 | 2,600 | 0.3% | 0.7% | 28 | -174,388 | -41.09% | Q4 2025 | Feb 10, 2026 |
| MOORE CAPITAL MANAGEMENT, LP | History | No change | 200,000 | 2,080 | 0.03% | 0.03% | 29 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | History | Reduced | 193,702 | 2,014 | 0.0% | 0.01% | 30 | -898,798 | -82.27% | Q4 2025 | Feb 17, 2026 |
| Radcliffe Capital Management, L.P. | History | No change | 193,057 | 2,007 | 0.11% | 0.12% | 31 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Ghisallo Capital Management LLC | History | New | 200,000 | 1,996 | 0.09% | — | 32 | +200,000 | New | Q4 2025 | Feb 17, 2026 |
| L1 Global Manager Pty Ltd | History | New | 170,000 | 1,768 | 1.16% | — | 33 | +170,000 | New | Q4 2025 | Feb 13, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 167,448 | 1,741 | 0.0% | 0.0% | 34 | -260,139 | -60.84% | Q4 2025 | Feb 17, 2026 |
| Quarry LP | History | New | 150,000 | 1,560 | 0.24% | — | 37 | +150,000 | New | Q4 2025 | Feb 13, 2026 |
| PICTON MAHONEY ASSET MANAGEMENT | History | Reduced | 150,000 | 1,560 | 0.01% | 0.02% | 36 | -100,000 | -40.0% | Q4 2025 | Feb 11, 2026 |
| ARISTEIA CAPITAL, L.L.C. | History | No change | 150,000 | 1,560 | 0.03% | 0.04% | 35 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | History | Reduced | 149,912 | 1,559 | 2.16% | 0.42% | 38 | -100,088 | -40.04% | Q4 2025 | Mar 04, 2026 |
| DLD Asset Management, LP | History | Reduced | 124,750 | 1,297 | 0.1% | 0.08% | 39 | -300,250 | -70.65% | Q4 2025 | Feb 13, 2026 |
| Feynman Point Asset Management LLC | History | New | 100,000 | 1,040 | 1.45% | — | 41 | +100,000 | New | Q4 2025 | Feb 18, 2026 |
| Mint Tower Capital Management B.V. | History | No change | 100,000 | 1,040 | 0.12% | 0.12% | 40 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| JPMORGAN CHASE & CO | History | New | 49,873 | 518 | 0.0% | — | 42 | +49,873 | New | Q4 2025 | Feb 11, 2026 |
| DELTEC ASSET MANAGEMENT LLC | History | Reduced | 40,000 | 416 | 0.07% | 0.08% | 43 | -10,000 | -20.0% | Q4 2025 | Jan 29, 2026 |
| Clear Street Group Inc. | History | Reduced | 36,699 | 381 | 0.0% | 0.0% | 44 | -12,043 | -24.71% | Q4 2025 | Feb 13, 2026 |
| Wellspring Financial Advisors, LLC | History | No change | 35,000 | 364 | 0.03% | 0.03% | 45 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| FLOW TRADERS U.S. LLC | History | Added to | 29,998 | 313 | 0.01% | 0.01% | 46 | +1,970 | 7.03% | Q4 2025 | Feb 13, 2026 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | History | Reduced | 20,371 | 211 | 0.01% | 0.03% | 47 | -22,949 | -52.98% | Q4 2025 | Feb 13, 2026 |
| Hara Capital LLC | History | New | 1,250 | 13 | 0.01% | — | 48 | +1,250 | New | Q4 2025 | Jan 15, 2026 |
| Governors Lane LP | History | Closed out | 0 | 0 | — | 0.58% | — | -733,200 | -100.0% | Q3 2025 | Nov 14, 2025 |
| HGC Investment Management Inc. | History | Closed out | 0 | 0 | — | 1.76% | — | -700,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Verition Fund Management LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -205,349 | -100.0% | Q3 2025 | Nov 14, 2025 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | History | Closed out | 0 | 0 | — | 0.01% | — | -199,600 | -100.0% | Q3 2025 | Nov 12, 2025 |
| GRITSTONE ASSET MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 1.77% | — | -166,867 | -100.0% | Q3 2025 | Nov 04, 2025 |
| Wealthspring Capital LLC | History | Closed out | 0 | 0 | — | 0.37% | — | -150,570 | -100.0% | Q3 2025 | Oct 15, 2025 |
| Rangeley Capital, LLC | History | Closed out | 0 | 0 | — | 0.27% | — | -30,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Schonfeld Strategic Advisors LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -29,998 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Centiva Capital, LP | History | Closed out | 0 | 0 | — | 0.0% | — | -25,100 | -100.0% | Q3 2025 | Nov 14, 2025 |
| MORGAN STANLEY | History | Added to | 94 | 0 | — | — | — | +15 | 18.99% | Q4 2025 | Feb 13, 2026 |