Mountain Lake AcquisitionMLAAU
13F holders, Q2 2026 (June 30)9holders −23
1new positions
1sold out
1famous investor
$10.07avg. 13F price*
At the end of Q2 2026, 9 institutions reported holding Mountain Lake Acquisition Co. (MLAAU) in their 13F filings, down 23 from Q1 2026. 1 opened new positions and 1 sold out. The largest holders were Calamos Advisors LLC ($7.9M), OMERS ADMINISTRATION Corp ($6.3M) and Tudor Investment Corporation ($3.0M). One famous investor held it Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).
- Company
- Mountain Lake Acquisition Co.
- CUSIP
- G6301L125
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $2K |
| Exits | 1 | $397K |
All 13F filers, Q1 2026 → Q2 2026: 97,730 shares bought and 285,567 shares sold, net −187,837 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 9 holders
| Calamos Advisors LLC | 0.04% | No change | 783,000 | $7.9M |
| OMERS ADMINISTRATION Corp | 0.04% | No change | 626,400 | $6.3M |
| Tudor Investment Corporation | 0.01% | No change | 300,000 | $3.0M |
| Qube Research & Technologies Ltd | 0.00% | No change | 250,000 | $2.5M |
| Toronto Dominion Bank | 0.00% | Reduce -59.5% | 166,060 | $1.7M |
| Clear Street Group Inc. | 0.00% | Add +465.7% | 118,425 | $1.2M |
| HRT Financial LP | 0.00% | Reduce -3.7% | 27,389 | $278K |
| Longfellow Investment Management Co. LLC | 0.02% | No change | 8,414 | $84K |
| UBS Group AG | 0.00% | New | 240 | $2K |
"% of holder's portfolio" is MLAAU's weight in each manager's 13F, not the share of Mountain Lake Acquisition Co. the manager owns.