Mountain Lake Acquisition-AMLAC
13F holders, Q2 2025 (June 30)At the end of Q2 2025, 44 institutions reported holding Mountain Lake Acquisition-A (MLAC) in their 13F filings, up 8 from Q1 2025. 13 opened new positions and 5 sold out. The largest holders were Magnetar Financial LLC ($19.5M), Wolverine Asset Management LLC ($15.9M) and AQR Arbitrage LLC ($15.5M). 2 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Mountain Lake Acquisition-A
- CUSIP
- G6301B101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 13 | $55.4M |
| Exits | 5 | $13.6M |
All 13F filers, Q1 2025 → Q2 2025: 7,579,594 shares bought and 2,382,014 shares sold, net +5,197,580 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 44 holders
| Magnetar Financial LLC | 0.10% | New | 1,900,000 | $19.5M |
| Wolverine Asset Management LLC | 1.15% | Add +224.0% | 1,553,458 | $15.9M |
| AQR Arbitrage LLC | 0.57% | Reduce -1.7% | 1,507,906 | $15.5M |
| Polar Asset Management Partners Inc. | 0.51% | Reduce -21.3% | 1,480,000 | $15.2M |
| Westchester Capital Management, LLC | 0.71% | Add +294.1% | 1,182,271 | $12.1M |
| D. E. Shaw & Co. | 0.01% | Add +1.6% | 1,092,500 | $11.2M |
| First Trust Capital Management L.P. | 0.70% | Add +0.5% | 1,005,000 | $10.3M |
| Alberta Investment Management Corp | 0.09% | New | 980,000 | $10.1M |
| Linden Advisors LP | 0.94% | No change | 875,000 | $9.0M |
| Two Sigma Investments, LP | 0.01% | No change | 761,250 | $7.8M |
| Governors Lane LP | 1.04% | New | 733,200 | $7.5M |
| Karpus Management, Inc. | 0.24% | Reduce -21.3% | 724,320 | $7.4M |
| HGC Investment Management Inc. | 2.00% | No change | 700,000 | $7.2M |
| Hudson Bay Capital Management LP | 0.05% | No change | 700,000 | $7.2M |
| Glazer Capital, LLC | 0.27% | Reduce -0.6% | 628,000 | $6.4M |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 0.70% | No change | 500,000 | $5.1M |
| LMR Partners LLP | 0.12% | No change | 500,000 | $5.1M |
| Jain Global LLC | 0.08% | New | 500,000 | $5.1M |
| Goldman Sachs Group Inc. | 0.00% | No change | 446,094 | $4.6M |
| Mizuho Securities USA LLC | 0.10% | — | 450,007 | $4.6M |
| Millennium Management | 0.00% | New | 427,587 | $4.4M |
| Periscope Capital Inc. | 1.43% | Add +41.8% | 350,000 | $3.6M |
| Whitebox Advisors LLC | 0.22% | No change | 300,000 | $3.1M |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 0.07% | New | 250,000 | $2.6M |
| Picton Mahoney Asset Management | 0.04% | No change | 250,000 | $2.6M |
| Berkley W R Corp. | 0.14% | No change | 218,060 | $2.2M |
| Toronto Dominion Bank | 0.00% | Add +1.7% | 206,447 | $2.1M |
| Verition Fund Management LLC | 0.01% | Reduce -36.5% | 204,944 | $2.1M |
| Moore Capital Management, LP | 0.04% | New | 200,000 | $2.1M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.01% | No change | 199,600 | $2.0M |
| DLD Asset Management, LP | 0.87% | Reduce -46.1% | 175,000 | $1.8M |
| Gritstone Asset Management LLC | 1.79% | No change | 169,310 | $1.7M |
| Wealthspring Capital LLC | 0.42% | New | 150,960 | $1.5M |
| Aristeia Capital, L.L.C. | 0.08% | New | 150,000 | $1.5M |
| Mint Tower Capital Management B.V. | 0.29% | No change | 100,000 | $1.0M |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -46.7% | 80,000 | $821K |
| Deltec Asset Management LLC | 0.09% | No change | 50,000 | $513K |
| Landscape Capital Management, L.L.C. | 0.04% | New | 45,576 | $468K |
| Wellspring Financial Advisors, LLC | 0.03% | New | 35,000 | $359K |
| Centiva Capital, LP | 0.02% | New | 25,100 | $258K |
| Virtu Financial LLC | 0.01% | Reduce -80.0% | 16,036 | $165K |
| Clear Street LLC | 0.00% | Reduce -23.0% | 3,869 | $40K |
| Morgan Stanley | 0.00% | Add +45.5% | 64 | $657 |
| Radcliffe Capital Management, L.P. | 0.00% | New | 96,854 | $0 |
"% of holder's portfolio" is MLAC's weight in each manager's 13F, not the share of Mountain Lake Acquisition-A the manager owns.