---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-021153"
form_type: "8-K"
ticker: "PBYI"
cik: "0001401667"
company_name: "PUMA BIOTECHNOLOGY, INC."
filed_at: "2025-06-24T23:59:59+00:00"
generated_at: "2026-05-18T22:13:40.301823+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Puma Biotechnology amends bylaws to align with Delaware law updates

## Summary
- Board adopted Fifth Amended and Restated Bylaws on June 19, 2025.
- Changes primarily reflect updates to Delaware General Corporation Law.
- Includes conforming, ministerial, and other related revisions.
- No substantive operational or financial changes disclosed.

## SEC filing metadata
- accession: 0001437749-25-021153
- form_type: 8-K
- ticker: PBYI
- cik: 0001401667
- company_name: PUMA BIOTECHNOLOGY, INC.
- filed_at: 2025-06-24T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1401667/000143774925021153/0001437749-25-021153-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1401667/000143774925021153/pbyi20250620_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-021153
- JSON: https://secwatch.observer/filing/0001437749-25-021153.json
- Plain text: https://secwatch.observer/filing/0001437749-25-021153.txt

## Key facts
- Governance Changes
  PUMA BIOTECHNOLOGY, INC.: Amended and restated bylaws primarily to align with updates to Delaware law, with conforming changes (effective 2025-06-19).
  - Change: bylaw amendment
  - Effective: 2025-06-19
  source text: On June 19, 2025, the Board of Directors of Puma Biotechnology, Inc. (the “Company”) approved and adopted an amendment and restatement of the Company’s Fourth Amended and Restated Bylaws (as so amended, the “Amended Bylaws”) primarily to revise provisions in order to be more in line with certain updates to Delaware law.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1401667/000143774925021153/0001437749-25-021153-index.htm

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