---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-092644"
form_type: "8-K"
ticker: "TOVX"
cik: "0000894158"
company_name: "Theriva Biologics, Inc."
filed_at: "2024-08-26T23:59:59+00:00"
generated_at: "2026-05-31T07:46:28.634079+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Theriva Biologics effects 1-for-25 reverse stock split to meet NYSE American price rules

## Summary
- Reverse split ratio of 1-for-25; shares reduced from 25,131,230 to approximately 1,005,249.
- Effective 12:01 a.m. ET on August 26, 2024; trading began on post-split basis same day.
- No fractional shares issued; holders otherwise entitled to fractional shares receive rounding up to next whole share.
- Exercise price and share count under options, warrants, and equity plans adjusted proportionately.
- Trading symbol unchanged ('TOVX'); new CUSIP number is 87164U508.

## SEC filing metadata
- accession: 0001104659-24-092644
- form_type: 8-K
- ticker: TOVX
- cik: 0000894158
- company_name: Theriva Biologics, Inc.
- filed_at: 2024-08-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/894158/000110465924092644/0001104659-24-092644-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/894158/000110465924092644/tm2422579d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-092644
- JSON: https://secwatch.observer/filing/0001104659-24-092644.json
- Plain text: https://secwatch.observer/filing/0001104659-24-092644.txt

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