---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-26-025340"
form_type: "8-K"
ticker: "SHPH"
cik: "0001757499"
company_name: "Shuttle Pharmaceuticals Holdings, Inc."
filed_at: "2026-05-27T13:00:14+00:00"
generated_at: "2026-05-27T13:01:43.767364+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Shuttle Pharma shareholders approve reverse stock split authorization up to 1:150 at annual meeting

## Summary
- All four director nominees elected with ~2.6M votes each; broker non-votes 582,364.
- Ratification of Forvis Mazars as auditor approved 3,191,174 for, 12,417 against.
- Say-on-pay advisory vote approved 2,650,932 for, 39,906 against.
- Authorization for board to effect reverse stock split (1:2 to 1:150) approved 3,055,436 for, 119,431 against.
- Meeting adjournment proposal also approved 3,077,059 for, though not needed.

## SEC filing metadata
- accession: 0001493152-26-025340
- form_type: 8-K
- ticker: SHPH
- cik: 0001757499
- company_name: Shuttle Pharmaceuticals Holdings, Inc.
- filed_at: 2026-05-27T13:00:14+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1757499/000149315226025340/0001493152-26-025340-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1757499/000149315226025340/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-26-025340
- JSON: https://secwatch.observer/filing/0001493152-26-025340.json
- Plain text: https://secwatch.observer/filing/0001493152-26-025340.txt

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