Mountain Lake Acquisition Corp. - MLAC

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
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