Institutional Ownership
Mountain Lake Acquisition Co
CUSIP G6301B119UNIT 11/15/2028Q1 2026
13D / 13G Filings
5
Schedule 13D/13G on record
Beneficial Filers
4
Distinct reporting persons
Largest Stake
8.0%
Max % of class reported
Institutional Holders
3
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
5 filings · latest Aug 14, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Aug 14, 2025 | Polar Asset Management Partners Inc. | 13G/A | 6.2% | 1.48M | SEC |
| 2 | Feb 14, 2025 | Polar Asset Management Partners Inc. | 13G | 7.9% | 1.88M | SEC |
| 3 | Feb 11, 2025 | The K2 Principal Fund, L.P. | 13G/A | 3.1% | 749.0K | SEC |
| 4 | Jan 29, 2025 | Magnetar Financial LLC | 13G | 8.0% | 1.90M | SEC |
| 5 | Dec 20, 2024 | The K2 Principal Fund, L.P. | 13G | 5.7% | 1.20M | SEC |
Top Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Ubs Group AG | 50.4K | $532.6K |
| 2 | Skyview Investment Advisors, LLC | 50.0K | $528 |
| 3 | Flow Traders U.S. LLC | 29.3K | $309 |