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Mountain Lake Acquisition Co

CUSIP: G6301B101 | 65 institutional holders

Quarters

Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025
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Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13G/AMagnetar Financial LLC00.0%No shares heldJun 30, 2026No 13F filer matched
13G/ATenor Capital Management Company, L.P.00.0%No shares heldJun 30, 2026

Institutional Holders — Q2 2026

Mizuho Securities USA LLC1,710,141
0.3% of portfolio›$18.0M
Crossingbridge Advisors, LLC24,961
0.0% of portfolio›$265.6K
StyleTurnoverLocationFiled
Mizuho Securities USA LLC
1,710,141$18.0M0.3%GrowthMediumNew York, NY2026-07-28
Crossingbridge Advisors, LLC
24,961$265.6K0.0%GARPVery HighPleasantville, NY2026-08-13
No 13F filer matched
13G/AW. R. Berkley Corporation00.0%No shares heldJun 30, 2026No 13F filer matched
13G/APolar Asset Management Partners Inc.00.0%No shares heldJun 30, 20261,497,259 sh (Mar 31, 2026)
13G/AMizuho Financial Group Inc00.0%No shares heldJun 30, 2026Not yet in a 13F
13G/AMagnetar Financial LLC0
0.0% of class · Jun 30, 2026No shares held
No 13F filer matched
13G/ATenor Capital Management Company, L.P.0
0.0% of class · Jun 30, 2026No shares held
No 13F filer matched
13G/AW. R. Berkley Corporation0
0.0% of class · Jun 30, 2026No shares held
No 13F filer matched
13G/APolar Asset Management Partners Inc.0
0.0% of class · Jun 30, 2026No shares held
1,497,259 sh (Mar 31, 2026)
13G/AMizuho Financial Group Inc0
0.0% of class · Jun 30, 2026No shares held
Not yet in a 13F