---
schema_version: "secwatch.filing_event.v1"
accession: "0001418819-23-000028"
form_type: "8-K"
ticker: "IRDM"
cik: "0001418819"
company_name: "Iridium Communications Inc."
filed_at: "2023-09-15T23:59:59+00:00"
generated_at: "2026-06-10T16:09:14.795828+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Director Parker W. Rush to retire from Iridium board effective Dec 31, 2023

## Summary
- Parker W. Rush informed Iridium of his retirement as Board member, effective December 31, 2023.
- No replacement announced; board size and composition change as of year-end.
- Rush's role or committee assignments not specified in filing.

## SEC filing metadata
- accession: 0001418819-23-000028
- form_type: 8-K
- ticker: IRDM
- cik: 0001418819
- company_name: Iridium Communications Inc.
- filed_at: 2023-09-15T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1418819/000141881923000028/0001418819-23-000028-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1418819/000141881923000028/irdm-20230913.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001418819-23-000028
- JSON: https://secwatch.observer/filing/0001418819-23-000028.json
- Plain text: https://secwatch.observer/filing/0001418819-23-000028.txt

## Key facts
- Executive change
  Parker W. Rush departed as Director at Iridium Communications Inc..
  - Action: retiring
  - Role: Director
  source text: On September 13, 2023, Parker W. Rush informed Iridium Communications Inc. (the “Registrant”) that he will be retiring as a member of the Board of Directors of the Registrant effective as of December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1418819/000141881923000028/0001418819-23-000028-index.htm

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