Vieser Jaime 4
4 · Mountain Lake Acquisition Corp. · Filed Jun 15, 2026
Research Summary
AI-generated summary of this filing
MLAC Director Jaime Vieser Converts and Disposes 478,010 Shares
What Happened
Director Jaime Vieser converted 478,010 Class B founder shares into Class A ordinary shares and those Class A shares were exchanged in connection with the SPAC business combination on June 11, 2026. The Form 4 reports a disposition (code D) of 478,010 shares to the issuer and an exercise/conversion (code M) of 478,010 derivative shares; no cash price or dollar value is reported (N/A). After these transactions the reporting person owns zero Class A and zero Class B ordinary shares of the issuer.
Key Details
- Transaction date: June 11, 2026. Form 4 filed June 15, 2026 (timely filing).
- Shares involved: 478,010 shares converted and disposed. Reported price/value: N/A (non-cash conversion/exchange).
- Shares owned after transaction: 0 Class A ordinary shares; 0 Class B ordinary shares.
- Relevant footnotes: Conversion governed by the issuer’s Form S-1 description of founder shares (one-for-one conversion rules). The Class B→Class A conversion and subsequent exchange were part of the Business Combination with Pubco (Avalanche Treasury Corporation).
- Filing Timeliness: Filed within the SEC’s two-business-day Form 4 window.
Context
This was not an open-market sale — it was a corporate conversion/exchange tied to the SPAC business combination, not a routine sale for cash. For derivative reporting: the "M" code reflects conversion/exercise of founder (Class B) shares into Class A shares; the "D" reflects the subsequent disposition/exchange of those Class A shares into Pubco common stock under the merger agreement. No cash proceeds or market-price sale were reported.
Insider Transaction Report
- Disposition to Issuer
Class A ordinary shares, par value $0.0001 per share
[F2]2026-06-11−478,010→ 0 total - Exercise/Conversion
Class B ordinary shares, par value $0.0001 per share
[F1][F3]2026-06-11−478,010→ 0 total→ Class A ordinary shares (478,010 underlying)
Footnotes (3)
- [F1]As described in the registration statement on Form S-1 (File No. 333-281410) of the Issuer under the heading "Description of Securities--Founder Shares," the Class B ordinary shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination, or at any time prior to the Issuer's initial business combination, at the option of the holder, on a one-for-one basis, subject to certain adjustments.
- [F2]In connection with the SPAC Merger (as defined in the Business Combination Agreement), an aggregate of 478,010 Class A ordinary shares held by the Reporting Person were exchanged into an equal number of shares of Class A common stock, par value $0.01 per share, of Pubco. Following such transaction, the Reporting Person owns zero Class A ordinary shares.
- [F3]On June 11, 2026, in connection with the consummation of the transactions contemplated by the Business Combination Agreement dated October 1, 2025 (as amended on January 13, 2026 and March 17, 2026, the "Business Combination Agreement" and the transactions contemplated thereto, the "Business Combination"), by and among the Issuer, Avalanche Treasury Corporation, a Delaware corporation ("Pubco") and the other parties thereto, 478,010 Class B ordinary shares were converted into an aggregate of 478,010 Class A ordinary shares (the "Class B Conversion"). Following the Class B Conversion, the Reporting Person owns zero Class B ordinary shares.