---
schema_version: "secwatch.filing_event.v1"
accession: "0001683168-23-000307"
form_type: "8-K"
ticker: "PHIO"
cik: "0001533040"
company_name: "Phio Pharmaceuticals Corp."
filed_at: "2023-01-25T23:59:59+00:00"
generated_at: "2026-06-20T09:28:39.007493+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Phio Pharma announces 1-for-12 reverse stock split to meet Nasdaq bid price requirement

## Summary
- Board set ratio at 1-for-12; effective 12:01 a.m. ET Jan 26, 2023.
- Outstanding shares reduced from ~13.7M to ~1.1M; no change to par value or voting rights.
- Fractional shares paid in cash at $6.51/share based on 10-day average closing price.
- Reverse split aimed at ensuring compliance with Nasdaq minimum $1.00 bid price requirement.
- New CUSIP number 71880W402; trading symbol remains PHIO.

## SEC filing metadata
- accession: 0001683168-23-000307
- form_type: 8-K
- ticker: PHIO
- cik: 0001533040
- company_name: Phio Pharmaceuticals Corp.
- filed_at: 2023-01-25T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 3.03, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1533040/000168316823000307/0001683168-23-000307-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1533040/000168316823000307/phio_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001683168-23-000307
- JSON: https://secwatch.observer/filing/0001683168-23-000307.json
- Plain text: https://secwatch.observer/filing/0001683168-23-000307.txt

## Key facts
- Governance Changes
  Phio Pharmaceuticals Corp.: Filed a Certificate of Amendment to effect a 1-for-12 reverse stock split of common stock (effective 2023-01-26).
  - Change: charter amendment
  - Effective: 2023-01-26
  source text: thereafter, on January 24, 2023, the Company filed a Certificate of Amendment to its Amended and Restated Certificate of Incorporation (the “Certificate of Amendment”) with the Secretary of State of the State of Delaware, to implement the 1-for-12 reverse split of its common stock (the “Reverse Stock Split”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1533040/000168316823000307/0001683168-23-000307-index.htm

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