---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-003855"
form_type: "8-K"
ticker: null
cik: "0001305253"
company_name: "Eiger BioPharmaceuticals, Inc."
filed_at: "2024-01-08T23:59:59+00:00"
generated_at: "2026-06-07T02:03:27.918914+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Eiger BioPharmaceuticals completes 1-for-30 reverse stock split effective Jan 5, 2024

## Summary
- Reverse stock split ratio of 1:30 approved by stockholders on Dec 28, 2023 and Board.
- Effective at 11:59 p.m. ET on Jan 5, 2024; stock began split-adjusted trading Jan 8, 2024.
- No fractional shares issued; cash paid in lieu based on Nasdaq closing price prior to effective date.
- New CUSIP number 28249U204 assigned to common stock.

## SEC filing metadata
- accession: 0001193125-24-003855
- form_type: 8-K
- cik: 0001305253
- company_name: Eiger BioPharmaceuticals, Inc.
- filed_at: 2024-01-08T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1305253/000119312524003855/0001193125-24-003855-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1305253/000119312524003855/d111539d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-003855
- JSON: https://secwatch.observer/filing/0001193125-24-003855.json
- Plain text: https://secwatch.observer/filing/0001193125-24-003855.txt

## Key facts
- Governance Changes
  Eiger BioPharmaceuticals, Inc.: Amended charter to effect a one-for-thirty reverse stock split (effective 2024-01-05).
  - Change: charter amendment
  - Effective: 2024-01-05
  source text: On December 28, 2023, the Board approved the Reverse Stock Split at a ratio of one-for-thirty. Following such approval, the Company filed an amendment to its Charter (the “ Amendment ”) with the Secretary of State of the State of Delaware to effect the Reverse Stock Split, with an effective time of 11:59 p.m. Eastern Time on January 5, 2024 (the “ Effective Time ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1305253/000119312524003855/0001193125-24-003855-index.htm

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