---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-002119"
form_type: "8-K"
ticker: null
cik: "0001106838"
company_name: "Sonnet BioTherapeutics Holdings, Inc."
filed_at: "2025-04-01T23:59:59+00:00"
generated_at: "2026-05-24T00:19:24.010169+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Sonnet CEO Pankaj Mohan dies; Raghu Rao named interim CEO

## Summary
- CEO Pankaj Mohan passed away on March 31, 2025; board appointed Raghu Rao as interim CEO.
- Stephen McAndrew, CBO, promoted to President and Chief Business Officer.
- McAndrew's employment agreement: base salary $330,000, bonus up to 35%, severance terms.
- Rao, 62, has background in federal contracts and board roles; no formal employment agreement yet.

## SEC filing metadata
- accession: 0001641172-25-002119
- form_type: 8-K
- cik: 0001106838
- company_name: Sonnet BioTherapeutics Holdings, Inc.
- filed_at: 2025-04-01T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1106838/000164117225002119/0001641172-25-002119-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1106838/000164117225002119/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-002119
- JSON: https://secwatch.observer/filing/0001641172-25-002119.json
- Plain text: https://secwatch.observer/filing/0001641172-25-002119.txt

## Key facts
- Executive change
  Stephen McAndrew changed role as President and Chief Business Officer at Sonnet BioTherapeutics Holdings, Inc..
  - Action: promoted
  - Role: President and Chief Business Officer
  source text: promoted Stephen McAndrew, Ph.D., the Company’s current Chief Business Officer, to President and Chief Business Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1106838/000164117225002119/0001641172-25-002119-index.htm
- Executive change
  Pankaj Mohan departed as President, Chief Executive Officer and Chairman of the Board at Sonnet BioTherapeutics Holdings, Inc..
  - Action: passed away
  - Role: President, Chief Executive Officer and Chairman of the Board
  source text: As a result of the passing of Pankaj Mohan, President, Chief Executive Officer and Chairman of the Board of Directors (the “Board”) of Sonnet BioTherapeutics Holdings, Inc. (the “Company”), on March 31, 2025, the Board unanimously appointed Raghu Rao, 62, a current member of the Board, as interim Chief Executive Officer and promoted Stephen McAndrew, Ph.D., the Company’s current Chief Business Officer, to President and Chief Business Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1106838/000164117225002119/0001641172-25-002119-index.htm
- Executive change
  Raghu Rao was appointed as interim Chief Executive Officer at Sonnet BioTherapeutics Holdings, Inc..
  - Action: appointed
  - Role: interim Chief Executive Officer
  source text: the Board unanimously appointed Raghu Rao, 62, a current member of the Board, as interim Chief Executive Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1106838/000164117225002119/0001641172-25-002119-index.htm

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