Mountain Lake Acquisition Corp. II
MLAA- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002094265
No open-market purchases or sales by Mountain Lake Acquisition Corp. II insiders were filed in the last 90 days; 59 institutions reported holding it in 13F filings for Q2 2026, worth $323.8M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Mountain Lake Acquisition Corp. II as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 31
- +31 vs. Q4 2025
- Shares held
- 16.9M
- +16.9M vs. Q4 2025
- Total value
- $166.4M
- +$166.4M vs. Q4 2025
- New holders
- 31
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MLAA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 59 | $323.8M |
| Q1 2026 | 31 | $166.4M |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 0 | $0 |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Mountain Lake Acquisition Corp. II; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Adage Capital Partners GP, L.L.C. | 2,100,000 | $20.7M | 0.03% | +2,100,000 | New |
| Magnetar Financial LLC | 2,000,000 | $19.7M | 0.20% | +2,000,000 | New |
| Linden Advisors LP | 1,500,000 | $14.8M | 0.08% | +1,500,000 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 1,250,000 | $12.3M | 0.02% | +1,250,000 | New |
| Tenor Capital Management Co., L.P. | 1,059,588 | $10.4M | 0.16% | +1,059,588 | New |
| Polar Asset Management Partners Inc. | 1,000,000 | $9.85M | 0.23% | +1,000,000 | New |
| Sona Asset Management (US) LLC | 1,000,000 | $9.85M | 0.38% | +1,000,000 | New |
| Glazer Capital, LLC | 971,419 | $9.55M | 0.20% | +971,419 | New |
| Verition Fund Management LLC | 900,000 | $8.87M | 0.09% | +900,000 | New |
| Shaolin Capital Management LLC | 737,300 | $7.26M | 0.30% | +737,300 | New |
| Two Sigma Investments, LP | 567,675 | $5.58M | 0.00% | +567,675 | New |
| Periscope Capital Inc. | 500,000 | $4.92M | 0.86% | +500,000 | New |
| Berkley W R Corp | 447,794 | $4.41M | 0.24% | +447,794 | New |
| Radcliffe Capital Management, L.P. | 403,982 | $3.98M | 0.30% | +403,982 | New |
| Whitebox Advisors LLC | 400,000 | $3.94M | 0.06% | +400,000 | New |
| Ghisallo Capital Management LLC | 375,000 | $3.69M | 0.10% | +375,000 | New |
| D. E. Shaw & Co., Inc. | 325,001 | $3.20M | 0.00% | +325,001 | New |
| Highbridge Capital Management LLC | 277,003 | $2.73M | 0.17% | +277,003 | New |
| Mint Tower Capital Management B.V. | 250,000 | $2.46M | 0.24% | +250,000 | New |
| CSS LLC | 190,236 | $1.87M | 0.10% | +190,236 | New |
| Clear Street Group Inc. | 136,354 | $1.34M | 0.01% | +136,354 | New |
| Hudson Bay Capital Management LP | 100,000 | $985.0K | 0.01% | +100,000 | New |
| DLD Asset Management, LP | 100,000 | $984.5K | 0.10% | +100,000 | New |
| Galaxy Digital Inc. | 100,000 | $984.0K | 0.15% | +100,000 | New |
| Virtu Financial LLC | 79,870 | $787.0K | 0.03% | +79,870 | New |
| Boothbay Fund Management, LLC | 50,000 | $492.3K | 0.01% | +50,000 | New |
| Deltec Asset Management LLC | 50,000 | $491.5K | 0.09% | +50,000 | New |
| Royal Bank of Canada | 14,800 | $146.0K | 0.00% | +14,800 | New |
| Schonfeld Strategic Advisors LLC | 10,123 | $99.6K | 0.00% | +10,123 | New |
| PenderFund Capital Management Ltd. | 5,000 | $49.3K | 0.01% | +5,000 | New |
| Morgan Stanley | 17 | $167 | 0.00% | +17 | New |