---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-016559"
form_type: "8-K"
ticker: "ATNM"
cik: "0001388320"
company_name: "Actinium Pharmaceuticals, Inc."
filed_at: "2026-02-13T23:59:59+00:00"
generated_at: "2026-05-16T02:44:54.808494+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Actinium CFO Steve O'Loughlin resigns; CEO Sandesh Seth named principal financial officer

## Summary
- Steve O'Loughlin resigns as CFO effective Feb 27, 2026 to pursue other opportunities.
- No disagreements with the company contributed to his resignation.
- Board appoints CEO/Chairman Sandesh Seth as principal financial officer effective same date.
- Sandesh Seth has 25+ years in pharma, investment banking, and equity research.

## SEC filing metadata
- accession: 0001213900-26-016559
- form_type: 8-K
- ticker: ATNM
- cik: 0001388320
- company_name: Actinium Pharmaceuticals, Inc.
- filed_at: 2026-02-13T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1388320/000121390026016559/0001213900-26-016559-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1388320/000121390026016559/ea0277127-8k_actinium.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-016559
- JSON: https://secwatch.observer/filing/0001213900-26-016559.json
- Plain text: https://secwatch.observer/filing/0001213900-26-016559.txt

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