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OMNICOM GROUP INC.

Public company
Headquarters
NEW YORK, New York
Ticker
OMC
CIK
0000029989

WARN notices since 2024

0
None on record

Workers affected since 2024

0
Across 0 notices

Executive changes, last 12 months

2
1 appointment, 1 departure

Last event

Oct 6, 2026
Executive departureSenior Vice President and Chief Accounting Officer departs: Andrew Castellaneta

Workers affected over time

Cumulative workers in WARN notices since 2024

Not enough notices to chart yet.

Leadership

Role and personSinceChange
Senior Vice President and Chief Accounting OfficerAndrew CastellanetaOct 6, 2026Departed
Vice President, Global Financial Reporting and Chief Accounting OfficerJordan FarnamOct 6, 2026Appointed

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  1. Executive departure

    Senior Vice President and Chief Accounting Officer departs: Andrew Castellaneta

    Andrew Castellaneta, Senior Vice President and Chief Accounting Officer of OMNICOM GROUP INC., retires the role, effective October 1, 2026. The company reported the change in an 8-K that cites Item 5.02.

    Role: Senior Vice President and Chief Accounting Officer

    Source: SEC 8-K, filed Oct 6, 2026

  2. Executive appointment

    Vice President, Global Financial Reporting and Chief Accounting Officer appointed: Jordan Farnam

    Jordan Farnam was named Vice President, Global Financial Reporting and Chief Accounting Officer of OMNICOM GROUP INC., effective October 1, 2026. The company reported the change in an 8-K that cites Item 5.02.

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

    Source: SEC 8-K, filed Oct 6, 2026

Last verified Nov 8, 2026