MOUNTAIN LAKE ACQUISIT CORP (MLAAU)
Institutional ownership reported to the SEC as of Q2 2026, across 2 quarters.
9
Reporting holders
$23.0M
Reported value
0.0%
Calls
0.0%
Puts
-23
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Calamos Advisors LLC | $7.9M | 783,000 | 0.03% | 2q | HELD |
| OMERS ADMINISTRATION Corp | $6.3M | 626,400 | 0.04% | 2q | HELD |
| TUDOR INVESTMENT CORP ET AL | $3.0M | 300,000 | 0.00% | 2q | HELD |
| Qube Research & Technologies Ltd | $2.5M | 250,000 | 0.00% | 2q | HELD |
| TORONTO DOMINION BANK | $1.7M | 166,060 | 0.00% | 2q | -59.6%-$2.5M |
| Clear Street Group Inc. | $1.2M | 118,425 | 0.00% | 2q | +465.7%+$977.8K |
| HRT FINANCIAL LP | $278.0K | 27,389 | 0.00% | 2q | -3.7%-$10.7K |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | $84.4K | 8,414 | 0.02% | 2q | HELD |
| UBS Group AG | $2.4K | 240 | 0.00% | new | NEW |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 9 | $23.0M | 2,279,928 | 1 | 1 | 2 | 0.0% |
| Q1 2026 | 32 | $158.6M | 15,974,859 | 31 | 0 | 0 | 0.0% |