---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-022426"
form_type: "8-K"
ticker: "PRPH"
cik: "0000868278"
company_name: "ProPhase Labs, Inc."
filed_at: "2025-08-06T23:59:59+00:00"
generated_at: "2026-05-17T20:16:19.627553+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# ProPhase Labs COO resigns, appoints fractional CFO Steven Plumb

## Summary
- COO Stu Hollenshead resigned July 31, 2025, not due to any disagreement; will serve as marketing consultant.
- Company will search for new COO; duties shared among executive management team in interim.
- Appointed Steven M. Plumb as fractional CFO effective Aug 6, 2025, via Clear Financial Solutions.
- Plumb to provide 25 hours/month at $10,000/month on month-to-month basis; CEO Ted Karkus remains principal financial officer.

## SEC filing metadata
- accession: 0001641172-25-022426
- form_type: 8-K
- ticker: PRPH
- cik: 0000868278
- company_name: ProPhase Labs, Inc.
- filed_at: 2025-08-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/868278/000164117225022426/0001641172-25-022426-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/868278/000164117225022426/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-022426
- JSON: https://secwatch.observer/filing/0001641172-25-022426.json
- Plain text: https://secwatch.observer/filing/0001641172-25-022426.txt

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