---
schema_version: "secwatch.filing_event.v1"
accession: "0000950142-24-000071"
form_type: "8-K"
ticker: "ADP"
cik: "0000008670"
company_name: "AUTOMATIC DATA PROCESSING INC"
filed_at: "2024-01-10T23:59:59+00:00"
generated_at: "2026-06-07T01:11:56.332600+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# ADP appoints Thomas J. Lynch as independent board chair; Rodriguez remains director

## Summary
- Thomas J. Lynch becomes independent non-executive chair effective Jan 31, 2024, succeeding Carlos Rodriguez.
- Carlos Rodriguez steps down as executive chair but continues as a non-employee director, foregoing director compensation until the 2024 annual meeting.
- John P. Jones transitions from lead independent director to member of CMDC and NCGC; Scott F. Powers becomes CMDC chair.
- Nazzic S. Keene moves to NCGC as chair; Peter Bisson shifts from NCGC to the Audit Committee.

## SEC filing metadata
- accession: 0000950142-24-000071
- form_type: 8-K
- ticker: ADP
- cik: 0000008670
- company_name: AUTOMATIC DATA PROCESSING INC
- filed_at: 2024-01-10T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/8670/000095014224000071/0000950142-24-000071-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/8670/000095014224000071/eh240436246_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950142-24-000071
- JSON: https://secwatch.observer/filing/0000950142-24-000071.json
- Plain text: https://secwatch.observer/filing/0000950142-24-000071.txt

## Key facts
- Executive change
  Thomas J. Lynch was appointed as independent, non-executive Chair of the Board at AUTOMATIC DATA PROCESSING INC.
  - Action: appointed
  - Role: independent, non-executive Chair of the Board
  source text: the Board appointed Thomas J. Lynch as the independent, non-executive Chair of the Board, effective as of January 31, 2024, succeeding Carlos A. Rodriguez
  evidence_url: https://www.sec.gov/Archives/edgar/data/8670/000095014224000071/0000950142-24-000071-index.htm
- Executive change
  Carlos A. Rodriguez changed role as Executive Chair at AUTOMATIC DATA PROCESSING INC.
  - Action: stepped down as Executive Chair
  - Role: Executive Chair
  source text: succeeding Carlos A. Rodriguez, who has served as Executive Chair since January 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/8670/000095014224000071/0000950142-24-000071-index.htm

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