Interpublic Group stock shifts to Omnicom after the merger

Published on 09/30/2026 at 09:24 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Interpublic Group stock now belongs to Omnicom after holders received 0.344 shares per IPG share on November 26, 2025. Revenue growth was minus 1.81 percent on September 28, 2026.

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Interpublic Group stock changed status after Omnicom completed its acquisition of The Interpublic Group of Companies on November 26, 2025. Former IPG holders received 0.344 Omnicom shares for each IPG share, while the transaction value was stated at USD 13 billion to USD 14 billion by IT Boltwise on September 24, 2026.

Ownership changed on November 26

The exchange ratio is the key figure for former shareholders because it defines the economic bridge between the former IPG security and the combined Omnicom group. The deal shifted the investment case from a standalone advertising company to an integrated holding structure, with the former IPG stake represented through Omnicom shares.

Extern reported on September 7, 2026 that Omnicom had completed the acquisition and that IPG had entered the transaction with USD 10.7 billion in 2024 revenue and 53,300 employees. The historical scale explains why the integration remains the central issue for investors tracking the former listing.

Revenue metrics remain under pressure

Eulerpool reported revenue growth of minus 1.81 percent as of September 28, 2026, compared with minus 0.35 percent previously. The comparison points to a weaker underlying revenue trend rather than a conventional standalone stock catalyst.

Revenue per share stood at USD 28.31 as of September 28, 2026, versus USD 28.40 in the prior year, a decline of 0.33 percent, according to Eulerpool. Property, plant and equipment was USD 1.60 billion, down from USD 1.80 billion previously, according to Eulerpool.

Former IPG listing is delisted

Eulerpool labels the IPG security delisted as of September 28, 2026. For investors, the practical conclusion is that Interpublic Group stock is now a merger legacy position, while the economic exposure sits inside Omnicom and its integration results.