---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-247691"
form_type: "8-K"
ticker: "GYRE"
cik: "0001124105"
company_name: "GYRE THERAPEUTICS, INC."
filed_at: "2021-08-16T23:59:59+00:00"
generated_at: "2026-06-29T09:49:06.845576+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Catalyst Biosciences CMO Howard Levy retires, transitions to consultant through Sept 2022

## Summary
- Howard Levy retired as CMO effective Aug 15, 2021; consulting role until Sept 30, 2022.
- Consulting at customary hourly rate; vested options exercisable 90 days after termination.
- Levy to provide consulting on hemophilia programs; non-compete in Factor VIIa/IX and complement areas.

## SEC filing metadata
- accession: 0001193125-21-247691
- form_type: 8-K
- ticker: GYRE
- cik: 0001124105
- company_name: GYRE THERAPEUTICS, INC.
- filed_at: 2021-08-16T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1124105/000119312521247691/0001193125-21-247691-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1124105/000119312521247691/d193376d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-247691
- JSON: https://secwatch.observer/filing/0001193125-21-247691.json
- Plain text: https://secwatch.observer/filing/0001193125-21-247691.txt

## Key facts
- Executive change
  Howard Levy retired as Chief Medical Officer at GYRE THERAPEUTICS, INC..
  - Action: retired
  - Role: Chief Medical Officer
  source text: Howard Levy, M.B.B.Ch, Ph.D., M.M.M. its Chief Medical Officer plans to retire effective August 15, 2021
  evidence_url: https://www.sec.gov/Archives/edgar/data/1124105/000119312521247691/0001193125-21-247691-index.htm

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