Mountain Lake Acquisition Corp. II
MLAAU- 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; 9 institutions reported holding it in 13F filings for Q2 2026, worth $23.0M 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
- 32
- +32 vs. Q4 2025
- Shares held
- 16.0M
- +16.0M vs. Q4 2025
- Total value
- $158.6M
- +$158.6M vs. Q4 2025
- New holders
- 32
- 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 MLAAU 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 | 9 | $23.0M |
| Q1 2026 | 32 | $158.6M |
| 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 |
|---|---|---|---|---|---|
| Aristeia Capital LLC | 2,186,394 | $21.7M | 0.50% | +2,186,394 | New |
| Alberta Investment Management Corp | 1,750,000 | $17.4M | 0.11% | +1,750,000 | New |
| CNH Partners LLC | 1,415,656 | $14.1M | 0.23% | +1,415,656 | New |
| LMR Partners LLP | 1,250,000 | $12.4M | 0.11% | +1,250,000 | New |
| Calamos Advisors LLC | 783,000 | $7.78M | 0.03% | +783,000 | New |
| Millennium Management LLC | 764,983 | $7.60M | 0.01% | +764,983 | New |
| BNP Paribas Arbitrage, SA | 742,960 | $7.38M | 0.00% | +742,960 | New |
| Omers Administration Corp | 626,400 | $6.22M | 0.04% | +626,400 | New |
| Westchester Capital Management, LLC | 614,526 | $6.10M | 0.30% | +614,526 | New |
| Vivaldi Asset Management, LLC | 600,000 | $5.96M | 0.31% | +600,000 | New |
| MMCAP International Inc. SPC | 500,000 | $4.96M | 0.43% | +500,000 | New |
| Rivernorth Capital Management, LLC | 500,000 | $4.96M | 0.25% | +500,000 | New |
| Moore Capital Management, LP | 500,000 | $4.96M | 0.18% | +500,000 | New |
| Picton Mahoney Asset Management | 500,000 | $4.96M | 0.05% | +500,000 | New |
| Toronto Dominion Bank | 410,570 | $4.08M | 0.01% | +410,570 | New |
| Schonfeld Strategic Advisors LLC | 340,000 | $3.38M | 0.03% | +340,000 | New |
| Wealthspring Capital LLC | 338,050 | $3.36M | 0.80% | +338,050 | New |
| Sculptor Capital LP | 313,025 | $3.11M | 0.04% | +313,025 | New |
| Lineage Point Capital LP | 300,000 | $2.98M | 0.73% | +300,000 | New |
| Tudor Investment Corp Et Al | 300,000 | $2.98M | 0.02% | +300,000 | New |
| Wolverine Asset Management LLC | 275,000 | $2.73M | 0.04% | +275,000 | New |
| Qube Research & Technologies Ltd | 250,000 | $2.48M | 0.00% | +250,000 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 200,000 | $1.99M | 0.01% | +200,000 | New |
| RLH Capital LLC | 150,000 | $1.49M | 0.76% | +150,000 | New |
| Centiva Capital, LP | 150,000 | $1.49M | 0.07% | +150,000 | New |
| Quarry LP | 75,000 | $745.5K | 0.15% | +75,000 | New |
| Abc Arbitrage SA | 40,000 | $397.2K | 0.05% | +40,000 | New |
| Cable Car Capital LLC | 30,000 | $297.9K | 0.10% | +30,000 | New |
| HRT Financial LP | 28,446 | $282.0K | 0.00% | +28,446 | New |
| Clear Street Group Inc. | 20,935 | $207.9K | 0.00% | +20,935 | New |
| TrueMark Investments, LLC | 11,500 | $114.2K | 0.02% | +11,500 | New |
| Longfellow Investment Management Co LLC | 8,414 | $83.6K | 0.02% | +8,414 | New |