MOUNTAIN LAKE ACQUISIT CORP MLAAU
UNIT 01/21/2031 · Unit · CUSIP G6301L125
- SectorBlank check (SPAC)
- IndustryBlank Checks
- HeadquartersIncline Village, NV
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $10.07.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q1 2026 | 32 |
| Q2 2026 | 9 |
Biggest buyers
| Clear Street Group Inc. | Added | +97.5k |
| UBS Group AG | New | +240 |
Biggest sellers
| ARISTEIA CAPITAL, L.L.C. | Sold out | -2.2m |
| Alberta Investment Management Corp | Sold out | -1.8m |
| AQR Arbitrage LLC | Sold out | -1.4m |
| LMR Partners LLP | Sold out | -1.2m |
| MILLENNIUM MANAGEMENT LLC | Sold out | -765.0k |
| BNP PARIBAS FINANCIAL MARKETS | Sold out | -743.0k |
| Westchester Capital Management, LLC | Sold out | -614.5k |
| First Trust Capital Management L.P. | Sold out | -600.0k |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | Sold out | -500.0k |
| MMCAP International Inc. SPC | Sold out | -500.0k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| ARISTEIA CAPITAL, L.L.C. 13G · institution new · filed 2026-05-14 | 5.9% |
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 1 | $5.1m | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Calamos Advisors LLC 0.03% of their portfolio | 783.0k $7.9m | Unchanged |
| OMERS ADMINISTRATION Corp 0.04% of their portfolio | 626.4k $6.3m | Unchanged |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 300.0k $3.0m | Unchanged |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 250.0k $2.5m | Unchanged |
| TORONTO DOMINION BANK 0.00% of their portfolio | 166.1k $1.7m | Reduced -244.5k |
| Clear Street Group Inc. 0.00% of their portfolio | 118.4k $1.2m | Added +97.5k |
| HRT FINANCIAL LP 0.00% of their portfolio | 27.4k $278.0k | Reduced -1.1k |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC 0.02% of their portfolio | 8.4k $84.4k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 240 $2.4k | New |