---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-016394"
form_type: "8-K"
ticker: "SHPH"
cik: "0001757499"
company_name: "Shuttle Pharmaceuticals Holdings, Inc."
filed_at: "2025-06-25T23:59:59+00:00"
generated_at: "2026-05-18T19:41:51.477367+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Shuttle Pharma raises $4.25M in private placement of common stock and pre-funded warrants

## Summary
- Gross proceeds of $4.25M from sale of 21,924 shares and 1,158,953 pre-funded warrants at $3.60 per unit.
- Pre-funded warrants exercisable immediately at $0.001 per share, expiring when fully exercised.
- Net proceeds to be used for potential acquisitions, marketing, and general corporate purposes.
- WestPark Capital acted as exclusive placement agent with a 4% fee of gross proceeds.
- Company agreed to file resale registration statement within 10 days; lock-up on further issuances for up to 120 days.

## SEC filing metadata
- accession: 0001641172-25-016394
- form_type: 8-K
- ticker: SHPH
- cik: 0001757499
- company_name: Shuttle Pharmaceuticals Holdings, Inc.
- filed_at: 2025-06-25T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1757499/000164117225016394/0001641172-25-016394-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1757499/000164117225016394/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-016394
- JSON: https://secwatch.observer/filing/0001641172-25-016394.json
- Plain text: https://secwatch.observer/filing/0001641172-25-016394.txt

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