Grinberg Paul 4

What Happened

• Paul Grinberg, CEO of Mountain Lake Acquisition Corp. (MLAC), was reported on Form 4 as acquiring 478,010 Class B ordinary shares on 2026-06-01. The transaction is coded as an "other acquisition/disposition" (code J) and shows no purchase price (N/A) because the shares were distributed by the Sponsor rather than bought on the open market.

Key Details

• Transaction date: 2026-06-01; Form 4 filed: 2026-06-04 (filed one business day after the typical two-business-day Form 4 deadline).
• Shares acquired: 478,010 Class B ordinary shares; price shown as N/A (no cash paid).
• Shares owned after transaction: not disclosed in the filing.
• Footnote F1: Shares were received in a pro rata distribution from Mountain Lake Acquisition Sponsor LLC; no consideration was paid.
• Footnote F2: Class B ordinary shares convert into Class A ordinary shares one-for-one at the time of the issuer's initial business combination (or earlier at the holder's option), subject to adjustments.
• Transaction code: J (other acquisition) — indicates a non-standard acquisition type (here, a Sponsor distribution).

Context

• This was a Sponsor distribution of founder/Class B shares, not an open-market purchase or sale. Class B shares are typically founder-style shares that will convert to Class A upon a business combination, so this transaction reflects internal allocation rather than a market signal.