---
schema_version: "secwatch.filing_event.v1"
accession: "0000895417-23-000037"
form_type: "8-K"
ticker: "ELS"
cik: "0000895417"
company_name: "EQUITY LIFESTYLE PROPERTIES INC"
filed_at: "2023-05-19T23:59:59+00:00"
generated_at: "2026-06-14T20:30:48.615190+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# ELS Chairman Samuel Zell passes away; Thomas Heneghan named Chairman

## Summary
- Samuel Zell, Chairman of ELS since 1995, passed away on May 18, 2023.
- Board named Thomas Heneghan, previously Vice Chairman, as Chairman effective immediately.
- Heneghan served as ELS CEO from 2004 to 2013 and Vice Chairman since 2018.
- Marguerite Nader remains President and CEO; succession was pre-planned.

## SEC filing metadata
- accession: 0000895417-23-000037
- form_type: 8-K
- ticker: ELS
- cik: 0000895417
- company_name: EQUITY LIFESTYLE PROPERTIES INC
- filed_at: 2023-05-19T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/895417/000089541723000037/0000895417-23-000037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/895417/000089541723000037/els-20230518.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000895417-23-000037
- JSON: https://secwatch.observer/filing/0000895417-23-000037.json
- Plain text: https://secwatch.observer/filing/0000895417-23-000037.txt

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