Omnicom CAO Andrew Castellaneta retires after 25 years; Jordan Farnam named Chief Accounting Officer

OMNICOM GROUP INC.

Andrew Castellaneta retired as Senior Vice President and Chief Accounting Officer effective October 1, 2026, after more than 25 years at Omnicom; he will remain an employee for a transition period.
Omnicom's board appointed Jordan Farnam, 44, as Vice President, Global Financial Reporting and Chief Accounting Officer, effective October 1, 2026.
Farnam joined Omnicom in January 2024 as VP, Global Financial Reporting; previously Corporate Controller at Consumer Edge LLC (2022-2024) and Director, Technical Accounting at Spotify USA (2020-2022).
Farnam also spent time at PricewaterhouseCoopers LLP, including as Assurance Director serving technology and media multinational clients in the U.S. and Finland.
Omnicom stated Castellaneta's retirement is not the result of any disagreement with the Company on operations, policies or practices.

item 5.02

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Appointed

Jordan Farnam

Vice President, Global Financial Reporting and Chief Accounting Officer

OMC · OMNICOM GROUP INC.

Effective: 2026-10-01
Filed: October 6, 2026, 5:01 PM ET

On October 1, 2026, the Company’s Board of Directors appointed Jordan Farnam as Vice President, Global Financial Reporting and Chief Accounting Officer, effective immediately.

Departed

Andrew Castellaneta

Senior Vice President and Chief Accounting Officer

OMC · OMNICOM GROUP INC.

Effective: 2026-10-01
Successor: Jordan Farnam
Filed: October 6, 2026, 5:01 PM ET

On October 1, 2026, after a distinguished career including more than 25 years at Omnicom Group Inc. (the “Company”), Andrew Castellaneta retired from his role as the Company’s Senior Vice President and Chief Accounting Officer, effective immediately. Mr. Castellaneta will remain an employee of the Company for a period of time to facilitate a smooth transition.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

Jordan Farnam was appointed as Vice President, Global Financial Reporting and Chief Accounting Officer at OMNICOM GROUP INC..

Action: appointed
Role: Vice President, Global Financial Reporting and Chief Accounting Officer

Exact text from the filing

On October 1, 2026, the Company’s Board of Directors appointed Jordan Farnam as Vice President, Global Financial Reporting and Chief Accounting Officer, effective immediately.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Andrew Castellaneta retired as Senior Vice President and Chief Accounting Officer at OMNICOM GROUP INC..

Action: retired
Role: Senior Vice President and Chief Accounting Officer

Exact text from the filing

On October 1, 2026, after a distinguished career including more than 25 years at Omnicom Group Inc. (the “Company”), Andrew Castellaneta retired from his role as the Company’s Senior Vice President and Chief Accounting Officer, effective immediately. Mr. Castellaneta will remain an employee of the Company for a period of time to facilitate a smooth transition.

View on SEC.gov

OMNICOM GROUP INC. filing history →

Source: SEC EDGAR

accession 0001213900-26-107282

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