---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-004240"
form_type: "8-K"
ticker: "DTIL"
cik: "0001357874"
company_name: "PRECISION BIOSCIENCES INC"
filed_at: "2023-02-24T23:59:59+00:00"
generated_at: "2026-06-19T00:36:51.350205+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Precision BioSciences promotes Neil Leatherbury to SVP CMC; co-founder Derek Jantz moves to advisory role

## Summary
- Neil Leatherbury promoted to SVP, Head of CMC, reporting to CEO Michael Amoroso.
- Co-founder Derek Jantz steps down as CSO, becomes Co-Founder and Chief Science Advisor.
- Co-founder Jeff Smith continues as Chief Research Officer, now leads joint steering committees with Lilly and Novartis.
- CMC promotion follows FDA Type C feedback on azer-cel manufacturing processes.

## SEC filing metadata
- accession: 0000950170-23-004240
- form_type: 8-K
- ticker: DTIL
- cik: 0001357874
- company_name: PRECISION BIOSCIENCES INC
- filed_at: 2023-02-24T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1357874/000095017023004240/0000950170-23-004240-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1357874/000095017023004240/dtil-20230222.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-004240
- JSON: https://secwatch.observer/filing/0000950170-23-004240.json
- Plain text: https://secwatch.observer/filing/0000950170-23-004240.txt

## Key facts
- Executive change
  Derek Jantz changed role as Co-Founder and Chief Science Advisor at PRECISION BIOSCIENCES INC.
  - Action: stepped down
  - Role: Co-Founder and Chief Science Advisor
  source text: On February 22, 2023, Derek Jantz, Ph.D. notified Precision BioSciences, Inc. (the “Company” or “Precision”) of his intentions to gradually step away from his current day-to-day responsibilities at Precision to pursue other personal and professional interests while continuing to support the Company’s external relationships, including with existing and potential business development partners.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1357874/000095017023004240/0000950170-23-004240-index.htm

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