---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-025055"
form_type: "8-K"
ticker: "MIST"
cik: "0001408443"
company_name: "Milestone Pharmaceuticals Inc."
filed_at: "2025-03-18T23:59:59+00:00"
generated_at: "2026-05-24T13:26:08.529338+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Milestone Pharmaceuticals amends ATM sales agreement with Jefferies to up to $77.8M

## Summary
- Amended Open Market Sale Agreement replaces prior $50M facility; total capacity increased to $77.8M including ~$2.8M already sold.
- Common shares sold at-the-market via Jefferies; company pays 3.0% commission on gross proceeds.
- Prospectus supplement to be filed under existing S-3 shelf registration (File No. 333-283162).
- Company not obligated to sell any shares; agreement may be terminated early by either party.

## SEC filing metadata
- accession: 0001104659-25-025055
- form_type: 8-K
- ticker: MIST
- cik: 0001408443
- company_name: Milestone Pharmaceuticals Inc.
- filed_at: 2025-03-18T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1408443/000110465925025055/0001104659-25-025055-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1408443/000110465925025055/tm259429d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-025055
- JSON: https://secwatch.observer/filing/0001104659-25-025055.json
- Plain text: https://secwatch.observer/filing/0001104659-25-025055.txt

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