---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-056911"
form_type: "8-K"
ticker: "OSTX"
cik: "0001795091"
company_name: "OS Therapies Inc"
filed_at: "2025-06-24T23:59:59+00:00"
generated_at: "2026-05-18T22:50:11.882692+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# OS Therapies (OSTX) raises up to $8M via warrant exercise inducement; extends cash runway into H2 2026

## Summary
- Holders exercise 1.57M old warrants ($1.12) for cash; receive new 5-year warrants at $3.00/sh.
- Gross proceeds up to ~$8M; $1.76M already received, extending cash runway into H2 2026.
- Proceeds to support regulatory/pre-commercial efforts for OST-HER2 in osteosarcoma.
- Offering period June 20 to July 10, 2025; solicitation agent fee 5% of gross proceeds.
- Company reiterates BLA submission to FDA in Q3 2025; potential PRV sale (most recent at $160M).

## SEC filing metadata
- accession: 0001213900-25-056911
- form_type: 8-K
- ticker: OSTX
- cik: 0001795091
- company_name: OS Therapies Inc
- filed_at: 2025-06-24T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1795091/000121390025056911/0001213900-25-056911-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1795091/000121390025056911/ea0246590-8k_ostherap.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-056911
- JSON: https://secwatch.observer/filing/0001213900-25-056911.json
- Plain text: https://secwatch.observer/filing/0001213900-25-056911.txt

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