Andrew Castellaneta is CAO & VP at OMNICOM GROUP INC. (OMC). They have made 7 open-market trades across 1 company since 2019, most recently 2026-08-15.
CIK 0001627493
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| OMC | 20,795 | $1.7M |
Shares reported on the most recent Form 4, priced at the 2026-08-18 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| OMC | SELL | 2024-10-18 | 2024-10-22 | $105.29 | $842K | +0.5% | +1.3% | -13.9% |
| OMC | SELL | 2023-11-02 | 2023-11-06 | $76.57 | $490K | +1.0% | +7.5% | +16.5% |
| OMC | SELL | 2023-02-10 | 2023-02-14 | $92.80 | $557K | -2.0% | -6.0% | -1.2% |
| OMC | SELL | 2022-02-11 | 2022-02-15 | $85.47 | $427K | -1.9% | -0.9% | -9.9% |
| OMC | SELL | 2019-10-17 | 2019-10-18 | $75.78 | $227K | +2.4% | +3.6% | +5.5% |
| OMC | SELL | 2019-07-19 | 2019-07-23 | $80.16 | $321K | -2.2% | -3.7% | -6.2% |
| OMC | SELL | 2019-04-24 | 2019-04-26 | $80.24 | $353K | -2.5% | -3.8% | +0.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.