---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-094022"
form_type: "8-K"
ticker: "HL"
cik: "0000719413"
company_name: "HECLA MINING CO/DE/"
filed_at: "2023-04-06T23:59:59+00:00"
generated_at: "2026-06-17T05:28:34.229731+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Hecla Mining signs definitive agreement to acquire ATAC Resources for C$31M in stock

## Summary
- Hecla to acquire all ATAC shares for 0.0166 Hecla share per ATAC share, total 3,693,516 Hecla shares valued at ~C$31M.
- Hecla invests C$2M in spin-off Cascadia Minerals, acquiring 19.9% interest and ROFR on assets.
- Total consideration including Cascadia shares valued at C$39M; premium of 66% (109% incl. Cascadia) based on ATAC's 20-day VWAP.
- Transaction structured as plan of arrangement; Hecla subsidiary Alexco Resources Corp. to acquire ATAC.
- Voting support agreements with ATAC directors, officers, and certain security holders.

## SEC filing metadata
- accession: 0001193125-23-094022
- form_type: 8-K
- ticker: HL
- cik: 0000719413
- company_name: HECLA MINING CO/DE/
- filed_at: 2023-04-06T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 8.01, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/719413/000119312523094022/0001193125-23-094022-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/719413/000119312523094022/d476947d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-094022
- JSON: https://secwatch.observer/filing/0001193125-23-094022.json
- Plain text: https://secwatch.observer/filing/0001193125-23-094022.txt

## Key facts
- Material Agreements
  HECLA MINING CO/DE/ entered into Arrangement Agreement with ATAC Resources Ltd. valued at approximately $23 million (effective 2023-04-05).
  - Action: entry
  - Agreement: merger
  - Counterparty: ATAC Resources Ltd.
  - Value: approximately $23 million
  - Effective: 2023-04-05
  source text: On April 5, 2023, Hecla Mining Company (the “Company” or “Hecla”) entered into an Arrangement Agreement (the “Agreement”) with ATAC Resources Ltd. (“ATAC”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/719413/000119312523094022/0001193125-23-094022-index.htm

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