---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-010536"
form_type: "8-K"
ticker: "RIGL"
cik: "0001034842"
company_name: "RIGEL PHARMACEUTICALS INC"
filed_at: "2023-02-03T23:59:59+00:00"
generated_at: "2026-06-20T00:48:20.397538+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Rigel Pharmaceuticals CMO Wolfgang Dummer resigns, effective March 31, 2023

## Summary
- Wolfgang Dummer, EVP and Chief Medical Officer, will resign effective March 31, 2023.
- Company has initiated a search for a new CMO with substantial hematology-oncology experience.
- Dummer will continue in his role through the separation date and receive severance under the Executive Severance Plan.
- Resignation deemed a Non-COC Qualifying Termination; requires full release of claims.

## SEC filing metadata
- accession: 0001104659-23-010536
- form_type: 8-K
- ticker: RIGL
- cik: 0001034842
- company_name: RIGEL PHARMACEUTICALS INC
- filed_at: 2023-02-03T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1034842/000110465923010536/0001104659-23-010536-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1034842/000110465923010536/tm235424d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-010536
- JSON: https://secwatch.observer/filing/0001104659-23-010536.json
- Plain text: https://secwatch.observer/filing/0001104659-23-010536.txt

## Key facts
- Executive change
  Wolfgang Dummer resigned as Executive Vice President and Chief Medical Officer at RIGEL PHARMACEUTICALS INC.
  - Action: resigned
  - Role: Executive Vice President and Chief Medical Officer
  source text: Wolfgang Dummer, M.D., Ph.D. informed Rigel Pharmaceuticals, Inc. (the “Company”) of his intention to resign from his position as the Company’s Executive Vice President and Chief Medical Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1034842/000110465923010536/0001104659-23-010536-index.htm

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