Interpublic Group of Companies

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ticker: IPG step: 01 generated: 2026-05-13 source: quick-research note: acquired

Interpublic Group of Companies (IPG) — Business Overview

Note: IPG was acquired by Omnicom Group (OMC) and the merger closed on November 26, 2025. IPG no longer trades as an independent public company. For research on the combined entity, see the OMC research files.

Business Description (Historical — Pre-Acquisition)

Interpublic Group was one of the world's four largest global advertising holding companies, operating agency networks including McCann Worldgroup, FCB (Foote, Cone & Belding), MullenLowe, and media networks UM (Universal McCann) and Initiative. IPG also owned specialized agencies Weber Shandwick (PR), FutureBrand, and Kinesso (data/identity platform). IPG served Fortune 500 clients across consumer goods, automotive, pharma, financial services, and tech.

Acquisition by Omnicom

• Announced: December 2024
• FTC Approval: June 2025
• Closed: November 26, 2025
• Terms: Omnicom acquired IPG in an all-stock deal; IPG shareholders received Omnicom shares
• Combined entity: World's largest advertising holding company with $25B+ pro forma revenue
• Synergy target: $750M annual cost synergies by Year 3

See /Users/guy/Desktop/Stocks/OMC/ for full research on the combined Omnicom-IPG entity.

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ticker: IPG step: 04 generated: 2026-05-13 source: quick-research note: acquired

Interpublic Group of Companies (IPG) — Financial Snapshot

Note: IPG was acquired by Omnicom Group (OMC) — merger closed November 26, 2025. IPG no longer files as an independent public company. See OMC research for combined entity financials.

Last Reported Standalone Financials (FY2024)

Metric	FY2022	FY2023	FY2024	YoY
Revenue	~$9.4B	~$9.9B	~$10.1B	+2.0%
Operating Margin	~13%	~13.5%	~13.5%
Net Income	~$866M	~$975M	~$900M	~-8%
EPS (diluted)	~$2.22	~$2.57	~$2.42	~-6%

IPG's last full-year results as an independent company. Combined Omnicom-IPG pro forma revenues: $25B+. See OMC Step_04_Financial_Snapshot.md for combined entity analysis.

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ticker: IPG step: 12 generated: 2026-05-13 source: quick-research note: acquired

Interpublic Group of Companies (IPG) — Investment Catalysts & Risks

Note: IPG was acquired by Omnicom Group (OMC) — merger closed November 26, 2025. IPG no longer trades as an independent public company. This file is retained for historical reference only.

Status

IPG is no longer an independent investable entity. The company was merged into Omnicom Group in an all-stock transaction. Former IPG shareholders received Omnicom shares. The combined entity trades under ticker OMC on the NYSE.

For bull/bear analysis on the combined Omnicom-IPG entity, including the $750M synergy thesis and client conflict risks, see:

• /Users/guy/Desktop/Stocks/OMC/Step_12_Catalysts.md

Research Date

Generated: 2026-05-13