---
schema_version: "secwatch.filing_event.v1"
accession: "0001321732-25-000036"
form_type: "8-K"
ticker: "PEN"
cik: "0001321732"
company_name: "Penumbra Inc"
filed_at: "2025-02-21T23:59:59+00:00"
generated_at: "2026-05-26T06:49:21.880455+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Penumbra director Don Kassing to retire April 1, 2025 after 17 years

## Summary
- Don Kassing, board member since 2008 and Presiding Director since 2015, will retire effective April 1, 2025.
- Kassing's retirement is not due to any disagreement with Penumbra.
- No replacement for the board seat has been announced.
- Kassing previously served as President Emeritus and President of San Jose State University.

## SEC filing metadata
- accession: 0001321732-25-000036
- form_type: 8-K
- ticker: PEN
- cik: 0001321732
- company_name: Penumbra Inc
- filed_at: 2025-02-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1321732/000132173225000036/0001321732-25-000036-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1321732/000132173225000036/pen-20250214.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001321732-25-000036
- JSON: https://secwatch.observer/filing/0001321732-25-000036.json
- Plain text: https://secwatch.observer/filing/0001321732-25-000036.txt

## Key facts
- Executive change
  Don Kassing retired as Director at Penumbra Inc.
  - Action: retired
  - Role: Director
  source text: On February 14, 2025, Don Kassing, a member of the Board of Directors (the “Board”) of Penumbra, Inc. (the “Company”), notified the Company that he will retire from the Board effective April 1, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1321732/000132173225000036/0001321732-25-000036-index.htm

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