Andrew Castellaneta serves as Executive at OMNICOM GROUP INC., where they oversee executive responsibilities. Since joining the company, Andrew Castellaneta has executed 38 insider transactions totaling $2.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Aug 15, 2025 involved selling 1,850 shares valued at $141.2K.
Andrew Castellaneta currently holds 21,875 shares of OMNICOM GROUP INC. (OMC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Andrew Castellaneta has been a net seller of OMC stock. They have purchased $0 and sold $2.0M worth of shares.
Andrew Castellaneta's most recent insider trade was on Aug 15, 2025, when they sold 1,850 shares at $76.31 per share.
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| $96.20 |
| Discretionary |
| Nov 2, 2023 | OMC | $15.3K | Sale | 200 | $76.58 | Discretionary |
| Nov 2, 2023 | OMC | $237.4K | Sale | 3,100 | $76.57 | Discretionary |
| Aug 15, 2023 | OMC | $211.3K | Payment | 2,639 | $80.06 | Discretionary |
| Jul 14, 2023 | OMC | $0 | Award | 4,675 | $N/A | Discretionary |
| Feb 10, 2023 | OMC | $556.8K | Sale | 6,000 | $92.80 | Discretionary |
| Aug 15, 2022 | OMC | $167.8K | Payment | 2,322 | $72.25 | Discretionary |
| Jun 30, 2022 | OMC | $0 | Award | 7,075 | $N/A | Discretionary |
| Feb 11, 2022 | OMC | $427.4K | Sale | 5,000 | $85.47 | Discretionary |
| Aug 15, 2021 | OMC | $158.3K | Payment | 2,098 | $75.45 | Discretionary |
| Jun 30, 2021 | OMC | $0 | Award | 5,625 | $N/A | Discretionary |
| Aug 15, 2020 | OMC | $92.5K | Payment | 1,687 | $54.85 | Discretionary |
| Oct 17, 2019 | OMC | $227.3K | Sale | 3,000 | $75.78 | Discretionary |
| Aug 15, 2019 | OMC | $101.5K | Payment | 1,341 | $75.70 | Discretionary |
| Jul 19, 2019 | OMC | $93.9K | Sale | 1,172 | $80.16 | Discretionary |
| Jul 19, 2019 | OMC | $66.4K | Sale | 828 | $80.17 | Discretionary |
| Jul 1, 2019 | OMC | $0 | Award | 5,085 | $N/A | Discretionary |
| Jun 30, 2019 | OMC | $0 | Award | 8,240 | $N/A | Discretionary |
| Apr 24, 2019 | OMC | $353.1K | Sale | 4,400 | $80.24 | Discretionary |
| Aug 15, 2018 | OMC | $23.4K | Payment | 343 | $68.14 | Discretionary |
| Jul 15, 2018 | OMC | $43.7K | Payment | 564 | $77.51 | Discretionary |
| Jun 29, 2018 | OMC | $0 | Award | 5,245 | $N/A | Discretionary |
| Jun 29, 2018 | OMC | $26.6K | Payment | 349 | $76.27 | Discretionary |
| Aug 15, 2017 | OMC | $29.2K | Payment | 373 | $78.29 | Discretionary |
| Jul 15, 2017 | OMC | $49.9K | Payment | 614 | $81.28 | Discretionary |
| Jun 30, 2017 | OMC | $0 | Award | 5,125 | $N/A | Discretionary |
| Jan 15, 2017 | OMC | $68.4K | Payment | 802 | $85.31 | Discretionary |
| Aug 15, 2016 | OMC | $31.8K | Payment | 373 | $85.28 | Discretionary |
| Jul 15, 2016 | OMC | $24.5K | Payment | 296 | $82.78 | Discretionary |