---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-100902"
form_type: "8-K"
ticker: "SANA"
cik: "0001770121"
company_name: "Sana Biotechnology, Inc."
filed_at: "2024-04-18T23:59:59+00:00"
generated_at: "2026-06-03T19:13:57.722368+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Sana Biotechnology R&D President Douglas Williams resigns effective April 18, 2024

## Summary
- Douglas Williams, Ph.D., resigned as EVP and President, Research and Development.
- Resignation effective April 18, 2024; voluntary for personal reasons.
- No disagreement with the company cited; no successor named.
- Williams' departure removes a key R&D leader in a biotech with no pipeline-stage products.

## SEC filing metadata
- accession: 0001193125-24-100902
- form_type: 8-K
- ticker: SANA
- cik: 0001770121
- company_name: Sana Biotechnology, Inc.
- filed_at: 2024-04-18T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1770121/000119312524100902/0001193125-24-100902-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1770121/000119312524100902/d823295d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-100902
- JSON: https://secwatch.observer/filing/0001193125-24-100902.json
- Plain text: https://secwatch.observer/filing/0001193125-24-100902.txt

## Key facts
- Executive change
  Douglas Williams resigned as Executive Vice President and President, Research and Development at Sana Biotechnology, Inc..
  - Action: resigned
  - Role: Executive Vice President and President, Research and Development
  source text: Effective April 18, 2024, Douglas Williams, Ph.D. resigned from his position as Executive Vice President and President, Research and Development of Sana Biotechnology, Inc. (the “Company”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1770121/000119312524100902/0001193125-24-100902-index.htm

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