---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-23-038599"
form_type: "8-K"
ticker: "ARDX"
cik: "0001437402"
company_name: "ARDELYX, INC."
filed_at: "2023-11-13T23:59:59+00:00"
generated_at: "2026-06-08T04:51:45.165530+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Director Geoffrey A. Block resigns from Ardelyx board effective Nov 13, 2023

## Summary
- Dr. Block notified the board of his resignation on November 13, 2023, effective immediately.
- Resignation is not due to any disagreement with Ardelyx on operations, policies, or practices.
- Dr. Block had served on the board since March 2019; no replacement was announced.
- He also resigned from the Nominating and Governance Committee upon departure.

## SEC filing metadata
- accession: 0001628280-23-038599
- form_type: 8-K
- ticker: ARDX
- cik: 0001437402
- company_name: ARDELYX, INC.
- filed_at: 2023-11-13T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1437402/000162828023038599/0001628280-23-038599-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1437402/000162828023038599/ardx-20231113.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-23-038599
- JSON: https://secwatch.observer/filing/0001628280-23-038599.json
- Plain text: https://secwatch.observer/filing/0001628280-23-038599.txt

## Key facts
- Executive change
  Geoffrey A. Block resigned as Director at ARDELYX, INC..
  - Action: resigned
  - Role: Director
  source text: On November 13, 2023, Geoffrey A. Block, M.D. notified the Board of Directors (the “Board”) of Ardelyx, Inc. (the “Company”) of his decision to resign from the Board and the Nominating and Governance Committee of the Board, effective on November 13, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1437402/000162828023038599/0001628280-23-038599-index.htm

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