Who Owns Mountain Lake Acquisition Corp (MLAAU)? -- Institutional Holders (2026-06-30)
33 institutions reported holding $23.0M of Mountain Lake Acquisition Corp (MLAAU) in SEC 13F filings for 2026-06-30. Largest institutional holders: Calamos Advisors LLC ($7.9M), OMERS ADMINISTRATION Corp ($6.3M), TUDOR INVESTMENT CORP ET AL ($3.0M), Qube Research & Technologies Ltd ($2.5M), TORONTO DOMINION BANK ($1.7M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | Calamos Advisors LLC | $7.9M | 783,000 | Hold |
| 2 | OMERS ADMINISTRATION Corp | $6.3M | 626,400 | Hold |
| 3 | TUDOR INVESTMENT CORP ET AL | $3.0M | 300,000 | Hold |
| 4 | Qube Research & Technologies Ltd | $2.5M | 250,000 | Hold |
| 5 | TORONTO DOMINION BANK | $1.7M | 166,060 | Trimmed |
| 6 | Clear Street Group Inc. | $1.2M | 118,425 | Added |
| 7 | HRT FINANCIAL LP | $278,000 | 27,389 | Trimmed |
| 8 | LONGFELLOW INVESTMENT MANAGEMENT CO LLC | $84,392 | 8,414 | Hold |
| 9 | UBS Group AG | $2,407 | 240 | New |
| 10 | MILLENNIUM MANAGEMENT LLC | $0 | 0 | Exited |
| 11 | WOLVERINE ASSET MANAGEMENT LLC | $0 | 0 | Exited |
| 12 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
| 13 | MOORE CAPITAL MANAGEMENT, LP | $0 | 0 | Exited |
| 14 | Alberta Investment Management Corp | $0 | 0 | Exited |
| 15 | AQR Arbitrage LLC | $0 | 0 | Exited |
| 16 | PICTON MAHONEY ASSET MANAGEMENT | $0 | 0 | Exited |
| 17 | LMR Partners LLP | $0 | 0 | Exited |
| 18 | BNP PARIBAS FINANCIAL MARKETS | $0 | 0 | Exited |
| 19 | Schonfeld Strategic Advisors LLC | $0 | 0 | Exited |
| 20 | Centiva Capital, LP | $0 | 0 | Exited |
| 21 | Cable Car Capital, LP | $0 | 0 | Exited |
| 22 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $0 | 0 | Exited |
| 23 | ARISTEIA CAPITAL, L.L.C. | $0 | 0 | Exited |
| 24 | TrueMark Investments, LLC | $0 | 0 | Exited |
| 25 | ABC ARBITRAGE SA | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30