---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-26-042791"
form_type: "8-K"
ticker: "SHPH"
cik: "0001757499"
company_name: "Shuttle Pharmaceuticals Holdings, Inc."
filed_at: "2026-09-15T22:15:34+00:00"
generated_at: "2026-09-16T10:07:17.946775+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Shuttle Pharma issues 3.74M common shares on preferred conversions; adds warrants for ~17.9M shares

## Summary
- As of Sept 14, 2026, issued 2,869,595 common shares on Series B-1 preferred conversion and 867,887 on Series B-2 conversion.
- Issued warrants to purchase ~927,114 shares at $10.30 per share, exercisable for 3 years.
- Issued pre-funded warrants to purchase ~16,932,508 shares of common stock.
- All securities sold unregistered under Section 4(a)(2) exemption, following stockholder approval at Sept 9 special meeting.

## SEC filing metadata
- accession: 0001493152-26-042791
- form_type: 8-K
- ticker: SHPH
- cik: 0001757499
- company_name: Shuttle Pharmaceuticals Holdings, Inc.
- filed_at: 2026-09-15T22:15:34+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1757499/000149315226042791/0001493152-26-042791-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1757499/000149315226042791/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-26-042791
- JSON: https://secwatch.observer/filing/0001493152-26-042791.json
- Plain text: https://secwatch.observer/filing/0001493152-26-042791.txt

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