---
schema_version: "secwatch.filing_event.v1"
accession: "0001725160-25-000154"
form_type: "8-K"
ticker: "ZNTL"
cik: "0001725160"
company_name: "Zentalis Pharmaceuticals, Inc."
filed_at: "2025-08-26T23:59:59+00:00"
generated_at: "2026-05-17T09:58:09.674947+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Zentalis appoints James B. Bucher as Chief Legal Officer; Andrea Paul resigns to join law firm

## Summary
- Andrea Paul resigns as Chief Legal Officer and Corporate Secretary effective Sept 18, 2025.
- James B. Bucher appointed as new Chief Legal Officer and Corporate Secretary effective same date.
- Paul will remain a non-executive employee through Oct 1, 2025, and expects release agreement including 2025 bonus and equity vesting.
- Bucher previously led legal at Harpoon Therapeutics during its Merck acquisition and at Alder Biopharmaceuticals.

## SEC filing metadata
- accession: 0001725160-25-000154
- form_type: 8-K
- ticker: ZNTL
- cik: 0001725160
- company_name: Zentalis Pharmaceuticals, Inc.
- filed_at: 2025-08-26T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1725160/000172516025000154/0001725160-25-000154-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1725160/000172516025000154/zntl-20250826.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001725160-25-000154
- JSON: https://secwatch.observer/filing/0001725160-25-000154.json
- Plain text: https://secwatch.observer/filing/0001725160-25-000154.txt

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