---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-007054"
form_type: "8-K"
ticker: "CLNN"
cik: "0001822791"
company_name: "Clene Inc."
filed_at: "2023-03-17T23:59:59+00:00"
generated_at: "2026-06-17T23:45:10.640515+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Clene CMO retiring Apr 1; Dr. Benjamin Greenberg named Head of Medical

## Summary
- Robert Glanzman, M.D., Chief Medical Officer, retiring effective April 1, 2023; will provide consulting services at $300/hour for one year.
- Stock options granted pre-retirement continue vesting during the one-year consulting term; unvested options expire per 2020 Stock Plan.
- Benjamin Greenberg, M.D., M.H.S., appointed Head of Medical effective April 1, 2023; continues as neurology professor at UT Southwestern.

## SEC filing metadata
- accession: 0001437749-23-007054
- form_type: 8-K
- ticker: CLNN
- cik: 0001822791
- company_name: Clene Inc.
- filed_at: 2023-03-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1822791/000143774923007054/0001437749-23-007054-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1822791/000143774923007054/clnn20230206_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-007054
- JSON: https://secwatch.observer/filing/0001437749-23-007054.json
- Plain text: https://secwatch.observer/filing/0001437749-23-007054.txt

## Key facts
- Executive change
  Robert Glanzman retired as Chief Medical Officer at Clene Inc..
  - Action: retired
  - Role: Chief Medical Officer
  source text: On March 15, 2023, Robert Glanzman, M.D., FAAN, the Chief Medical Officer of Clene Inc. (the “Company”), notified the Company of his intent to retire from his position, effective as of April 1, 2023 (the “Effective Date”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1822791/000143774923007054/0001437749-23-007054-index.htm

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