| 2023-04-24 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 100,000 0.0495% | $93.84 | $9.38M | -5.99% | |
| 2021-04-26 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 162,124 0.0752% | $80.68 | $13.08M | -3.56% | |
| 2019-05-22 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 121,082 0.0552% | $79.84 | $9.67M | -1.35% | |
| 2016-05-26 | Sale | Omnicom Group Inc. OMC | President and CEO | 25,692 0.0108% | $82.13 | $2.11M | +4.31% | |
| 2016-05-25 | Sale | Omnicom Group Inc. OMC | President and CEO | 44,516 0.0188% | $82.48 | $3.67M | +4.47% | |
| 2012-08-16 | Sale | Omnicom Group Inc. OMC | President and CEO | 132,932 0.0499% | $51.66 | $6.87M | +11.82% | |
| 2012-03-13 | Sale | Omnicom Group Inc. OMC | President and CEO | 468,780 0.1702% | $48.76 | $22.86M | +2.9% | |
| 2012-03-12 | Sale | Omnicom Group Inc. OMC | President and CEO | 15,000 0.0055% | $48.67 | $730,050 | +3.97% | |
| 2012-03-09 | Sale | Omnicom Group Inc. OMC | President and CEO | 516,220 0.1894% | $48.62 | $25.1M | +4.07% | |
| 2008-02-20 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 102,600 0.032% | $46.00 | $4.72M | -7.75% | |
| 2008-02-19 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 197,400 0.0618% | $46.59 | $9.2M | -8.15% | |
| 2008-02-15 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 100,000 0.0311% | $46.57 | $4.66M | -8.51% | |
| 2007-02-15 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 140,597 0.0848% | $103.01 | $14.48M | -0.81% | |
| 2006-01-03 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 200,000 0.1136% | $86.25 | $17.25M | +3.93% | |
| 2004-03-02 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 55,000 0.0292% | $80.11 | $4.41M | -0.04% | |
| 2004-03-01 | Sale | Omnicom Group Inc. OMC | Chairman and CEO | 40,000 0.0212% | $81.03 | $3.24M | -1.46% |