---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-067813"
form_type: "8-K"
ticker: "MLAC"
cik: "0002029492"
company_name: "Mountain Lake Acquisition Corp."
filed_at: "2026-06-11T20:01:37+00:00"
generated_at: "2026-06-11T20:03:56.336593+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Mountain Lake Acquisition Corp. closes business combination with Avalanche Treasury; shares to trade on Nasdaq as AVAT

## Summary
- Business combination with Avalanche Treasury Corporation closed on June 11, 2026.
- Shareholders approved the transaction on June 4, 2026; all closing conditions satisfied.
- Combined company's Class A common stock begins trading on Nasdaq June 11 under ticker 'AVAT'.
- Ellenoff Grossman & Schole, Forbes Hare, Skadden, Appleby, and BTIG served as advisors.

## SEC filing metadata
- accession: 0001213900-26-067813
- form_type: 8-K
- ticker: MLAC
- cik: 0002029492
- company_name: Mountain Lake Acquisition Corp.
- filed_at: 2026-06-11T20:01:37+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2029492/000121390026067813/0001213900-26-067813-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2029492/000121390026067813/ea0294447-8k_mountain.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-067813
- JSON: https://secwatch.observer/filing/0001213900-26-067813.json
- Plain text: https://secwatch.observer/filing/0001213900-26-067813.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.