Omnicom Group Inc. (OMC) Shareholders & Insider Trades
Omnicom shareholders at a glance
The largest holder of Omnicom stock is State Street Corporation, with 24.6 million shares (8.96% of the company), worth about $2.15 billion as of September 25, 2026. The 10 largest holders together own 49.6%.
In Q2 2026, 1,144 institutional holdings reports listed shares worth $22.20 billion.
Insiders reported 79 transactions in the last two years: 3 sales worth $656,776 and no purchases. The newest one on file is from April 1, 2026 (Wyatt E Lee Jr, Director).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through April 1, 2026.
Omnicom Group Inc.
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest Omnicom shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| State Street Corporation | 24.6 million | 8.96% | $2.2B |
| BlackRock Advisors LLC | 22.7 million | 8.28% | $2.0B |
| Vanguard Capital Management LLC | 18.6 million | 6.78% | $1.6B |
| Vanguard Portfolio Management LLC | 13.5 million | 4.91% | $1.2B |
| BNY Mellon Investment Adviser, Inc. | 12.6 million | 4.58% | $1.1B |
| JPMorgan Investment Management, Inc. | 12.1 million | 4.41% | $1.1B |
| Geode Capital Management LLC | 8.6 million | 3.15% | $757.0M |
| MFS Investment Management Canada Ltd. | 8.3 million | 3.03% | $727.0M |
| Fidelity Management & Research Co. LLC | 7.7 million | 2.79% | $671.0M |
| First Eagle Investment Management LLC | 7.3 million | 2.68% | $643.0M |
As of September 25, 2026.
Omnicom institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 1,144 | – | $22.2B |
| Q1 2026 | 1,177 | – | $23.2B |
| Q4 2025 | 1,187 | – | $25.3B |
| Q3 2025 | 984 | 227.0 million | $18.5B |
| Q2 2025 | 987 | 215.0 million | $15.5B |
| Q1 2025 | 1,025 | 204.0 million | $16.9B |
| Q4 2024 | 1,001 | 195.0 million | $16.8B |
| Q3 2024 | 983 | 191.0 million | $19.7B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Omnicom insider trades
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Wyatt E Lee Jr | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Rice Linda Johnson | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Martore Gracia C | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Coleman Leonard S Jr. | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Pineda Patricia Salas | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Gerstein Mark D. | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Santos Cassandra | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Kissire Deborah J | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Williams Valerie M | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Hawkins Ronnie S. | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Moore Patrick Q | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Choksi Mary C | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
Newest 12 of 79 insider transactions in the last two years.
Questions and answers
Who owns the most Omnicom stock?
State Street Corporation, with 8.96% of the company (as of September 25, 2026). Next: BlackRock Advisors LLC (8.28%) and Vanguard Capital Management LLC (6.78%).
How many institutions own Omnicom stock?
1,144 institutional holdings reports listed Omnicom shares in Q2 2026 worth $22.20 billion.
Are Omnicom insiders buying or selling the stock?
In the last two years insiders reported 3 sales and no purchases (79 transactions in all); the newest on file is from April 1, 2026.
