---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-300788"
form_type: "8-K"
ticker: "OMC"
cik: "0000029989"
company_name: "OMNICOM GROUP INC."
filed_at: "2025-11-26T23:59:59+00:00"
generated_at: "2026-05-16T16:42:26.693244+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 1.0
calibrated_materiality_score: 1.0
confidence: "high"
source: SEC EDGAR
---

# Omnicom completes acquisition of Interpublic for 0.344x ratio; pro forma revenue >$25B

## Summary
- Merger closed Nov 26, 2025; IPG shareholders received 0.344 OMC shares per IPG share; legacy Omnicom owners hold ~60.6% of combined company.
- Pro forma combined revenue exceeds $25 billion; company trades as OMC on NYSE.
- Credit facility expanded to $3.5B (from $2.5B), termination extended to Nov 2030, facility fees reduced.
- Philippe Krakowsky (ex-IPG CEO) appointed Co-President/COO; base salary $1M; receives ~$11.4M in cash payments and accelerated vesting.
- Board expanded to 14 members; added Krakowsky, Patrick Moore, E. Lee Wyatt Jr.

## SEC filing metadata
- accession: 0001193125-25-300788
- form_type: 8-K
- ticker: OMC
- cik: 0000029989
- company_name: OMNICOM GROUP INC.
- filed_at: 2025-11-26T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 1.0
- calibrated_materiality_score: 1.0
- confidence: high
- sec_items: 1.01, 2.01, 2.03, 3.03, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/29989/000119312525300788/0001193125-25-300788-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/29989/000119312525300788/d24786d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-300788
- JSON: https://secwatch.observer/filing/0001193125-25-300788.json
- Plain text: https://secwatch.observer/filing/0001193125-25-300788.txt

## Source-grounded claims
- claim_id: b093884b4e0a2f56494dd047c582ecc147d9a749
  claim: OMNICOM GROUP INC. underwent a change of control involving The Interpublic Group of Companies, Inc. for 0.344 shares of Omnicom common stock per share of IPG common stock, with cash in lieu of fractional shares (closed 2025-11-26).
  evidence_excerpt: On November 26, 2025 (the “Closing Date”), Omnicom Group Inc., a New York corporation (the “Company” or “Omnicom”), completed its Merger (as defined below) with The Interpublic Group of Companies, Inc., a Delaware corporation (“IPG”). As previously reported, on December 8, 2024, Omnicom entered into an Agreement and Plan of Merger (the “Merger Agreement”) with IPG and EXT Subsidiary Inc., a Delaware corporation and a direct wholly owned subsidiary of Omnicom (“Merger Sub”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/29989/000119312525300788/0001193125-25-300788-index.htm

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