# MOUNTAIN LAKE ACQUISIT CORP (MLAAU)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/MLAAU/

- Reporting holders: 9
- Reported value: $23.0M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Calamos Advisors LLC](https://holderbook.com/funds/1316507-calamos-advisors-llc/) | $7.9M | 783,000 | 0.0% | 2 |
| [OMERS ADMINISTRATION Corp](https://holderbook.com/funds/1053321-omers-administration-corp/) | $6.3M | 626,400 | 0.0% | 2 |
| [TUDOR INVESTMENT CORP ET AL](https://holderbook.com/funds/923093-tudor-investment-corp-et-al/) | $3.0M | 300,000 | 0.0% | 2 |
| [Qube Research & Technologies Ltd](https://holderbook.com/funds/1729829-qube-research-technologies-ltd/) | $2.5M | 250,000 | 0.0% | 2 |
| [TORONTO DOMINION BANK](https://holderbook.com/funds/947263-toronto-dominion-bank/) | $1.7M | 166,060 | 0.0% | 2 |
| [Clear Street Group Inc.](https://holderbook.com/funds/1881567-clear-street-group-inc/) | $1.2M | 118,425 | 0.0% | 2 |
| [HRT FINANCIAL LP](https://holderbook.com/funds/1475597-hrt-financial-lp/) | $278.0K | 27,389 | 0.0% | 2 |
| [LONGFELLOW INVESTMENT MANAGEMENT CO LLC](https://holderbook.com/funds/1167487-longfellow-investment-management-co-llc/) | $84.4K | 8,414 | 0.0% | 2 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $2.4K | 240 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 9 | $23.0M |
| Q1 2026 | 32 | $158.6M |