---
schema_version: "secwatch.filing_event.v1"
accession: "0000891092-21-007077"
form_type: "8-K"
ticker: "OMC"
cik: "0000029989"
company_name: "OMNICOM GROUP INC."
filed_at: "2021-11-01T23:59:59+00:00"
generated_at: "2026-06-28T15:54:32.455711+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Omnicom appoints Daryl Simm as President & COO; Florian Adamski named OMG CEO

## Summary
- Daryl Simm promoted to President and COO of Omnicom, a newly created role effective Nov 1, 2021.
- Florian Adamski succeeds Simm as CEO of Omnicom Media Group, effective immediately.
- Simm had led Omnicom Media Group for over two decades; Adamski was CEO of OMD Worldwide.
- Simm will work directly with Chairman and CEO John Wren to oversee business operations.

## SEC filing metadata
- accession: 0000891092-21-007077
- form_type: 8-K
- ticker: OMC
- cik: 0000029989
- company_name: OMNICOM GROUP INC.
- filed_at: 2021-11-01T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/29989/000089109221007077/0000891092-21-007077-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/29989/000089109221007077/omc8k110121.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000891092-21-007077
- JSON: https://secwatch.observer/filing/0000891092-21-007077.json
- Plain text: https://secwatch.observer/filing/0000891092-21-007077.txt

## Key facts
- Executive change
  Daryl Simm was appointed as President and Chief Operating Officer at OMNICOM GROUP INC..
  - Action: appointed
  - Role: President and Chief Operating Officer
  source text: On October 29, 2021, the Board of Directors of Omnicom Group Inc. (the “Company”) appointed Daryl Simm as President and Chief Operating Officer of the Company, effective November 1, 2021.
  evidence_url: https://www.sec.gov/Archives/edgar/data/29989/000089109221007077/0000891092-21-007077-index.htm

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