Omnicom Group Inc (OMC)
Who owns Omnicom Group Inc (OMC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 95.3% of the shares are freely tradable; institutional investors hold 112.6%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 10.75 | 29,498,159 | +1.1 | 03/31/2026 |
| State Street Corp | 10.12 | 27,760,218 | +17.2 | 03/31/2026 |
| Vanguard Capital Management, LLC | 7.40 | 20,295,276 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.41 | 14,840,407 | +0.0 | 03/31/2026 |
| Bank of New York Mellon Corp | 4.41 | 12,098,191 | +7.2 | 03/31/2026 |
| JPMorgan Chase & Co | 4.39 | 12,031,678 | +13.9 | 03/31/2026 |
| Geode Capital Management, LLC | 3.40 | 9,313,917 | +8.6 | 03/31/2026 |
| Massachusetts Financial Services Company | 3.18 | 8,736,665 | +11.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| State Street® CommServSelSectSPDR®ETF | 4.18 | 11,475,179 | -0.4 | 07/30/2026 |
| Vanguard Morn Total Stk Mkt Idx Investor | 3.30 | 9,051,863 | -8.4 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 16. Jul 2026 | Januzzi Louis F | Senior VP, Gen. Counsel & Sec. | Other | 7,720 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.