---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-23-001352"
form_type: "8-K"
ticker: "OMC"
cik: "0000029989"
company_name: "OMNICOM GROUP INC."
filed_at: "2023-01-06T23:59:59+00:00"
generated_at: "2026-06-20T19:03:17.103856+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Omnicom EVP & General Counsel O'Brien steps down Dec 31, 2022; Januzzi succeeds

## Summary
- Michael J. O'Brien steps down as EVP, General Counsel and Secretary effective Dec 31, 2022; moves to advisory role.
- Louis F. Januzzi promoted to SVP, General Counsel and Secretary, effective same date.
- Januzzi has been part of Omnicom's legal team for 15 years.

## SEC filing metadata
- accession: 0001213900-23-001352
- form_type: 8-K
- ticker: OMC
- cik: 0000029989
- company_name: OMNICOM GROUP INC.
- filed_at: 2023-01-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/29989/000121390023001352/0001213900-23-001352-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/29989/000121390023001352/ea171325-8k_omnicom.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-23-001352
- JSON: https://secwatch.observer/filing/0001213900-23-001352.json
- Plain text: https://secwatch.observer/filing/0001213900-23-001352.txt

## Key facts
- Executive change
  Louis F. Januzzi was appointed as Senior Vice President, General Counsel and Secretary at OMNICOM GROUP INC..
  - Action: promoted
  - Role: Senior Vice President, General Counsel and Secretary
  source text: Louis F. Januzzi, who has been a member of Omnicom’s legal team for 15 years, is being promoted to Senior Vice President, General Counsel and Secretary.
  evidence_url: https://www.sec.gov/Archives/edgar/data/29989/000121390023001352/0001213900-23-001352-index.htm
- Executive change
  Michael J. O'Brien departed as Executive Vice President, General Counsel and Secretary at OMNICOM GROUP INC..
  - Action: stepped down
  - Role: Executive Vice President, General Counsel and Secretary
  source text: Michael J. O’Brien has notified Omnicom Group Inc. (the “Company”) that he has finalized his plans to step down from his role as the Company’s Executive Vice President, General Counsel and Secretary to spend more time with his family and pursue personal interests.
  evidence_url: https://www.sec.gov/Archives/edgar/data/29989/000121390023001352/0001213900-23-001352-index.htm

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