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, Q2 2026
Institutional positions in Mountain Lake Acquisition Corp. II as of Jun 30, 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
- 9
- −23 vs. Q1 2026
- Shares held
- 2.28M
- −13.7M (−85.7%) vs. Q1 2026
- Total value
- $23.0M
- −$135.7M (−85.5%) vs. Q1 2026
- New holders
- 1
- 1 more added
- Sold out
- 24
- 2 more reduced
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Mountain Lake Acquisition Corp. II; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Calamos Advisors LLC | 783,000 | $7.92M | 0.03% | 00.0% | Unchanged |
| Omers Administration Corp | 626,400 | $6.28M | 0.04% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 300,000 | $3.01M | 0.01% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 250,000 | $2.54M | 0.00% | 00.0% | Unchanged |
| Toronto Dominion Bank | 166,060 | $1.67M | 0.00% | −244,510−59.6% | Reduced |
| Clear Street Group Inc. | 118,425 | $1.19M | 0.00% | +97,490+465.7% | Added |
| HRT Financial LP | 27,389 | $278.0K | 0.00% | −1,057−3.7% | Reduced |
| Longfellow Investment Management Co LLC | 8,414 | $84.4K | 0.02% | 00.0% | Unchanged |
| UBS Group AG | 240 | $2.41K | 0.00% | +240 | New |
| Aristeia Capital LLC | 0 | $0 | 0.00% | −2,186,394−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −1,750,000−100.0% | Sold out |
| CNH Partners LLC | 0 | $0 | 0.00% | −1,415,656−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −1,250,000−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −764,983−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −742,960−100.0% | Sold out |
| Westchester Capital Management, LLC | 0 | $0 | 0.00% | −614,526−100.0% | Sold out |
| Vivaldi Asset Management, LLC | 0 | $0 | 0.00% | −600,000−100.0% | Sold out |
| MMCAP International Inc. SPC | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Rivernorth Capital Management, LLC | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −340,000−100.0% | Sold out |
| Wealthspring Capital LLC | 0 | $0 | 0.00% | −338,050−100.0% | Sold out |
| Sculptor Capital LP | 0 | $0 | 0.00% | −313,025−100.0% | Sold out |
| Lineage Point Capital LP | 0 | $0 | 0.00% | −300,000−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −275,000−100.0% | Sold out |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| RLH Capital LLC | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −75,000−100.0% | Sold out |
| Abc Arbitrage SA | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Cable Car Capital LLC | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| TrueMark Investments, LLC | 0 | $0 | 0.00% | −11,500−100.0% | Sold out |