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Equibles

MLAC

Mountain Lake Acquisition Corp.

Company with tickers: MLAC, MLACR, MLACU

CIK
2029492
CUSIP
G6301B101
13F Activity (30d)
3 filings 2 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 47
Total Value: $243,160,591
Total Shares: 23,092,175

Institutional Ownership Trend

8 quarters

Holder Concentration

Across 47 13F filers · Δ vs Dec 31, 2025
Top Holder
8.7%
Mar 2025 → Mar 2026 · range 8.3% – 11.4%
−0.1 pts
Top 5
38.9%
Mar 2025 → Mar 2026 · range 33.8% – 39.4%
+4.8 pts
Top 10
61.5%
Mar 2025 → Mar 2026 · range 54.5% – 63.4%
+6.9 pts
HHI
485
Mar 2025 → Mar 2026 · range 414 – 527
Broadly held+70

Quarterly Activity

vs Dec 31, 2025
New
5
Increased
9
Decreased
8
Sold Out
6
Unchanged
25
Holder count: -1
Institutional value: -5.6%
Shares held: -6.7%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mid BERKLEY W R CORP +1,515,300 1,877,833
Mid MIZUHO SECURITIES USA LLC +752,772 1,710,141
Mid GLAZER CAPITAL, LLC +170,254 856,946
Micro CoinFund Management LLC +105,000 566,000
Mid Polar Asset Management Partners Inc. +17,324 1,497,259

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid TENOR CAPITAL MANAGEMENT Co., L.P. −2,000,000 2,000,000
Small Shaolin Capital Management LLC −199,998 200,000
Large Jain Global LLC −178,464 196,786
Small Periscope Capital Inc. −125,000 125,000
Mega UBS Group AG −88,786 120,502

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Small Crossingbridge Advisors, LLC 442,460 $4,659,103
Small RLH Capital LLC 312,540 $3,291,046
Mid O'Connor Alternative Investments LLC 149,912 $1,578,573
Small Rangeley Capital, LLC 15,000 $157,950
Large Schonfeld Strategic Advisors LLC 14,623 $153,980

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega TWO SIGMA INVESTMENTS, LP 710,158 $7,385,643
Small Decagon Asset Management LLP 657,592 $6,838,956
Mid METEORA CAPITAL, LLC 579,318 $6,024,907
Mid J. Goldman & Co LP 423,564 $4,405,065
Mid OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 149,912 $1,559,084
Filter: New 5 Increased 9 Reduced 8 Sold out 6 Unchanged 25
Showing 47 of 47
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mid TENOR CAPITAL MANAGEMENT Co., L.P. $21,060,000 8.66% 2,000,000
Mid Magnetar Financial LLC $20,007,000 8.23% 1,900,000
Mid BERKLEY W R CORP $19,773,581 8.13% 1,877,833
Mid MIZUHO SECURITIES USA LLC Broker-Dealer $18,007,784 7.41% 1,710,141
Mid Polar Asset Management Partners Inc. $15,766,137 6.48% 1,497,259
Mid AQR Arbitrage LLC $14,804,853 6.09% 1,405,969
Mid First Trust Capital Management L.P. $10,323,538 4.25% 980,393
Mid Alberta Investment Management Corp $10,319,400 4.24% 980,000
Mid WOLVERINE ASSET MANAGEMENT LLC $10,232,601 4.21% 971,757
Mid Westchester Capital Management, LLC $9,347,479 3.84% 887,700
Mid Linden Advisors LP $9,213,750 3.79% 875,000
Mid GLAZER CAPITAL, LLC $9,023,641 3.71% 856,946
Mid Karpus Management, Inc. $6,530,916 2.69% 620,220
Micro CoinFund Management LLC $5,959,980 2.45% 566,000
Mid RIVERNORTH CAPITAL MANAGEMENT, LLC $5,265,000 2.17% 500,000
Large LMR Partners LLP $5,233,294 2.15% 496,989
Small Crossingbridge Advisors, LLC $4,659,103 1.92% 442,460
Mega GOLDMAN SACHS GROUP INC $4,469,247 1.84% 424,430
Large TORONTO DOMINION BANK Bank $3,685,500 1.52% 350,000
Small RLH Capital LLC $3,291,046 1.35% 312,540
Mid WHITEBOX ADVISORS LLC $3,159,000 1.30% 300,000
Large Hudson Bay Capital Management LP $2,742,317 1.13% 260,429
Mid MOORE CAPITAL MANAGEMENT, LP $2,106,000 0.87% 200,000
Mid Ghisallo Capital Management LLC $2,106,000 0.87% 200,000
Small Shaolin Capital Management LLC $2,106,000 0.87% 200,000
Large Jain Global LLC $2,072,156 0.85% 196,786
Mega D. E. Shaw & Co., Inc. $2,039,682 0.84% 193,702
Small Radcliffe Capital Management, L.P. $2,032,890 0.84% 193,057
Micro L1 Global Manager Pty Ltd $1,790,100 0.74% 170,000
Small Quarry LP $1,711,546 0.70% 162,540
Mid PICTON MAHONEY ASSET MANAGEMENT $1,579,500 0.65% 150,000
Mid ARISTEIA CAPITAL, L.L.C. $1,579,500 0.65% 150,000
Mid O'Connor Alternative Investments LLC $1,578,573 0.65% 149,912
Mega MILLENNIUM MANAGEMENT LLC $1,551,090 0.64% 147,302
Small Periscope Capital Inc. $1,316,250 0.54% 125,000
Small DLD Asset Management, LP $1,313,617 0.54% 124,750
Mega UBS Group AG $1,268,886 0.52% 120,502
Micro Feynman Point Asset Management LLC $1,053,000 0.43% 100,000
Small Mint Tower Capital Management B.V. $1,053,000 0.43% 100,000
Mega JPMORGAN CHASE & CO $525,615 0.22% 49,916
Small DELTEC ASSET MANAGEMENT LLC $421,200 0.17% 40,000
Large Clear Street Group Inc. $386,440 0.16% 36,699
Mid Wellspring Financial Advisors, LLC $368,550 0.15% 35,000
Small Rangeley Capital, LLC $157,950 0.06% 15,000
Large Schonfeld Strategic Advisors LLC $153,980 0.06% 14,623
Small Hara Capital LLC $13,162 0.01% 1,250
Mega MORGAN STANLEY $737 0.00% 70

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