---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-277877"
form_type: "8-K"
ticker: "ALGS"
cik: "0001799448"
company_name: "Aligos Therapeutics, Inc."
filed_at: "2023-11-15T23:59:59+00:00"
generated_at: "2026-06-08T02:39:53.308478+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Aligos Therapeutics President and Board member Leonid Beigelman resigns

## Summary
- Leonid Beigelman resigned from the Board effective Nov 9, 2023.
- Beigelman also resigned as President effective Dec 1, 2023.
- Resignation is not related to any disagreement with the Company.
- No replacement for President has been announced.
- Beigelman's departure removes a key scientific leader from management.

## SEC filing metadata
- accession: 0001193125-23-277877
- form_type: 8-K
- ticker: ALGS
- cik: 0001799448
- company_name: Aligos Therapeutics, Inc.
- filed_at: 2023-11-15T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1799448/000119312523277877/0001193125-23-277877-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1799448/000119312523277877/d850603d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-277877
- JSON: https://secwatch.observer/filing/0001193125-23-277877.json
- Plain text: https://secwatch.observer/filing/0001193125-23-277877.txt

## Key facts
- Executive change
  Leonid Beigelman resigned as President at Aligos Therapeutics, Inc..
  - Action: resigned
  - Role: President
  source text: On November 9, 2023, Leonid Beigelman resigned from the Board of Directors (the “Board”) of Aligos Therapeutics, Inc. (the “Company”), effective immediately, and from his position as President of the Company, effective as of December 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1799448/000119312523277877/0001193125-23-277877-index.htm
- Executive change
  Leonid Beigelman resigned as Member of the Board of Directors at Aligos Therapeutics, Inc..
  - Action: resigned
  - Role: Member of the Board of Directors
  source text: On November 9, 2023, Leonid Beigelman resigned from the Board of Directors (the “Board”) of Aligos Therapeutics, Inc. (the “Company”), effective immediately, and from his position as President of the Company, effective as of December 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1799448/000119312523277877/0001193125-23-277877-index.htm

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