Omnicom Group Inc. (OMC) — Institutional Ownership     Insider Trades

Omnicom Group Inc. (OMC) — among the top institutional holders, 30 hedge funds and asset managers reported positions as of Q42025. In Q42025, 9 funds opened a new position, 19 increased their stake, and 2 reduced their holdings. The largest holder is Vanguard Group Inc with 38.93M shares valued at $ 3.14B.