InsiderTrades

Form 4 for OMC Omnicom Group

Accepted 2026-08-18 16:30:45 ET · period of report 2026-08-15 · accession 0001213900-26-091246 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2026-08-18 16:30 2026-08-15 OMC Castellaneta Andrew SVP, CAO F - Tax $87.57 -1,348 20.8K -6% -$118.0K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock, par value $0.15 per share 2026-08-15 F D 1,348 $87.57 20,795 D — — (F1) Includes 4,365 shares acquired under Omnicom's employee stock purchase plan.