---
schema_version: "secwatch.filing_event.v1"
accession: "0001477932-25-008735"
form_type: "8-K"
ticker: "ASPI"
cik: "0001921865"
company_name: "ASP Isotopes Inc."
filed_at: "2025-12-03T23:59:59+00:00"
generated_at: "2026-05-16T15:28:49.484039+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# ASP Isotopes founder Paul Mann to return as CEO on Jan 19, 2026 after health leave

## Summary
- Paul Mann resumes CEO role effective Jan 19, 2026; continues as Executive Chairman.
- Interim CEO Robert Ainscow returns to COO position; Mann thanks him for leading during leave.
- Mann took temporary leave on Sep 29, 2025 for health reasons; now able to travel again.
- Mann states 2026 potential to be 'highly transformative' with strengthened execution frameworks.

## SEC filing metadata
- accession: 0001477932-25-008735
- form_type: 8-K
- ticker: ASPI
- cik: 0001921865
- company_name: ASP Isotopes Inc.
- filed_at: 2025-12-03T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1921865/000147793225008735/0001477932-25-008735-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1921865/000147793225008735/aspi_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001477932-25-008735
- JSON: https://secwatch.observer/filing/0001477932-25-008735.json
- Plain text: https://secwatch.observer/filing/0001477932-25-008735.txt

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