MOUNTAIN LAKE ACQUISIT CORP (MLAAW)
Institutional ownership reported to the SEC as of Q2 2026, across 2 quarters.
50
Reporting holders
$4.1M
Reported value
2.1%
Calls
0.0%
Puts
+27
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 |
|---|---|---|---|---|---|
| BOOTHBAY FUND MANAGEMENT, LLC | $899.2K | 90,550? | 0.01% | 2q | |
| ARISTEIA CAPITAL, L.L.C. | $311.3K | 1,094,702 | 0.00% | new | NEW |
| Verition Fund Management LLC | $300.7K | 1,113,168 | 0.00% | 2q | +46.1%+$94.9K |
| Alberta Investment Management Corp | $236.3K | 875,000 | 0.00% | new | NEW |
| Magnetar Financial LLC | $220.4K | 775,000 | 0.00% | 2q | -22.5%-$64.0K |
| Linden Advisors LP | $213.3K | 749,999 | 0.00% | 2q | HELD |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $189.1K | 700,000 | 0.00% | 2q | -33.3%-$94.5K |
| AQR Arbitrage LLC | $188.4K | 724,541 | 0.00% | new | NEW |
| Lineage Point Capital LP | $175.2K | 648,472 | 0.04% | new | NEW |
| LMR Partners LLP | $168.8K | 625,000 | 0.00% | new | NEW |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $168.8K | 625,000 | 0.00% | 2q | HELD |
| TENOR CAPITAL MANAGEMENT Co., L.P. | $143.1K | 529,794 | 0.00% | 2q | HELD |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | $135.7K | 521,729 | 0.00% | new | NEW |
| Polar Asset Management Partners Inc. | $135.1K | 500,000 | 0.00% | 2q | HELD |
| SONA ASSET MANAGEMENT (US) LLC | $135.1K | 500,000 | 0.00% | 2q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $100.3K | 371,479 | 0.00% | new | NEW |
| GLAZER CAPITAL, LLC | $95.0K | 350,000 | 0.00% | 2q | -27.9%-$36.8K |
| MILLENNIUM MANAGEMENT LLC | $85.9K | options only | 0.00% | new | OPTIONS |
| Westchester Capital Management, LLC | $83.0K | 307,261 | 0.00% | new | NEW |
| Radcliffe Capital Management, L.P. | $71.6K | 251,890 | 0.01% | 2q | HELD |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | $70.0K | 250,000 | 0.00% | new | NEW |
| MMCAP International Inc. SPC | $67.5K | 250,000 | 0.01% | new | NEW |
| MOORE CAPITAL MANAGEMENT, LP | $67.5K | 250,000 | 0.00% | new | NEW |
| PICTON MAHONEY ASSET MANAGEMENT | $65.0K | 250,000 | 0.00% | new | NEW |
| Shaolin Capital Management LLC | $59.1K | 218,649 | 0.00% | 2q | -40.7%-$40.5K |
| Periscope Capital Inc. | $57.4K | 212,500 | 0.01% | 2q | -15.0%-$10.1K |
| WHITEBOX ADVISORS LLC | $54.0K | 200,000 | 0.00% | 2q | HELD |
| Wealthspring Capital LLC | $45.4K | 168,240 | 0.01% | new | NEW |
| D. E. Shaw & Co., Inc. | $42.2K | 162,500 | 0.00% | 2q | HELD |
| DLD Asset Management, LP | $40.5K | 150,000 | 0.00% | 2q | +200.0%+$27.0K |
| Mint Tower Capital Management B.V. | $34.0K | 125,000 | 0.00% | 2q | HELD |
| TORONTO DOMINION BANK | $32.2K | 119,104 | 0.00% | new | NEW |
| WOLVERINE ASSET MANAGEMENT LLC | $31.1K | 115,302 | 0.00% | new | NEW |
| READYSTATE ASSET MANAGEMENT LP | $27.2K | 100,736 | 0.00% | new | NEW |
| Centiva Capital, LP | $25.7K | 95,000 | 0.00% | new | NEW |
| Meteora Capital, LLC | $25.7K | 95,000 | 0.00% | new | NEW |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $24.4K | 90,300 | 0.00% | new | NEW |
| HGC Investment Management Inc. | $23.9K | 88,352 | 0.00% | new | NEW |
| CSS LLC/IL | $21.1K | 78,118 | 0.00% | 2q | -17.9%-$4.6K |
| Walleye Capital LLC | $20.3K | 75,000 | 0.00% | new | NEW |
| RLH Capital LLC | $20.3K | 75,000 | 0.01% | new | NEW |
| Schonfeld Strategic Advisors LLC | $20.3K | 75,000 | 0.00% | new | NEW |
| Sculptor Capital LP | $14.1K | 52,179 | 0.00% | new | NEW |
| Galaxy Digital Inc. | $13.5K | 50,000 | 0.00% | 2q | HELD |
| Clear Street Group Inc. | $12.0K | 44,387 | 0.00% | 2q | -47.1%-$10.7K |
| Quarry LP | $10.1K | 37,500 | 0.00% | new | NEW |
| Parallax Volatility Advisers, L.P. | $9.6K | 33,790 | 0.00% | new | NEW |
| Fort Baker Capital Management LP | $6.3K | 23,500 | 0.00% | new | NEW |
| Cable Car Capital, LP | $4.1K | 15,000 | 0.00% | new | NEW |
| UBS Group AG | $2.6K | 9,665 | 0.00% | new | NEW |
| Arax Advisory Partners | $203 | 750 | 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 | 50 | $4.1M | 14,773,607 | 31 | 2 | 7 | 2.1% |
| Q1 2026 | 23 | $1.1M | 8,054,123 | 22 | 0 | 0 | 0.0% |