---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-021566"
form_type: "8-K"
ticker: "SHPH"
cik: "0001757499"
company_name: "Shuttle Pharmaceuticals Holdings, Inc."
filed_at: "2025-07-30T23:59:59+00:00"
generated_at: "2026-05-17T23:08:41.724922+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# President, COO and Secretary Peter Dritschilo resigns effective July 24, 2025

## Summary
- Peter Dritschilo resigned as President, Chief Operating Officer and Secretary on July 24, 2025.
- No replacement has been named for the vacant positions.
- Resignation effective immediately; Christopher Cooper remains Interim CEO.

## SEC filing metadata
- accession: 0001641172-25-021566
- form_type: 8-K
- ticker: SHPH
- cik: 0001757499
- company_name: Shuttle Pharmaceuticals Holdings, Inc.
- filed_at: 2025-07-30T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1757499/000164117225021566/0001641172-25-021566-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1757499/000164117225021566/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-021566
- JSON: https://secwatch.observer/filing/0001641172-25-021566.json
- Plain text: https://secwatch.observer/filing/0001641172-25-021566.txt

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