Insider Trading History of Zagorski Mark

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Zagorski Mark since 2017. This trader's CIK number is 1709574. At the time of last reporting, Zagorski Mark was the Chief Executive Officer of Doubleverify Holdings, Inc.. (stock ticker symbol DV). Also see all insider trading activities at Doubleverify Holdings, Inc..

Note that in the past Zagorski Mark also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Doubleverify Holdings, Inc. (DV) by Zagorski Mark

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2025 DV 1,141 $13,326 0 $0 75,524 $0
2024 DV 1,417 $21,800 0 $0 74,068 $0
2023 DV 2,154 $61,032 0 $0 61,081 $0
2022 DV 19,846 $508,847 0 $0 55,714 $0
2021 DV 0 $0 0 $0 86,581 $0

Yearly summary of insider trading at Telaria, Inc. (TLRA) by Zagorski Mark

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2020 TLRA 0 $0 0 $0 37,152 $0
2019 TLRA 0 $0 0 $0 46,610 $0
2018 TLRA 0 $0 0 $0 46,610 $0
2017 TLRA 51,865 $141,512 0 $0 0 $0


Insider trading activities at 2 companies by Zagorski Mark:

1. Doubleverify Holdings, Inc. (DV)

2. Telaria, Inc. (TLRA)

Table 1. Insider trading of Doubleverify Holdings, Inc. (DV) by Zagorski Mark

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2025-05-31 DV Buy 1,141 11.68 13,326
2025-06-15 DV Option Ex 32,249 .00 0
2025-03-15 DV Option Ex 43,275 .00 0
2024-11-30 DV Buy 705 15.30 10,786
2024-12-15 DV Option Ex 14,273 .00 0
2024-09-30 DV Option Ex 10,416 .00 0
2024-06-30 DV Option Ex 10,416 .00 0
2024-05-31 DV Buy 712 15.47 11,014
2024-06-15 DV Option Ex 14,273 .00 0
2024-03-31 DV Option Ex 10,417 .00 0
2024-03-15 DV Option Ex 14,273 .00 0
2023-11-30 DV Buy 389 28.22 10,977
2023-12-15 DV Option Ex 6,471 .00 0
2023-09-30 DV Option Ex 10,417 .00 0
2023-09-19 DV Buy 1,765 28.36 50,055
2023-09-15 DV Option Ex 6,471 .00 0
2023-06-30 DV Option Ex 10,417 .00 0
2023-06-15 DV Option Ex 6,471 .00 0
2023-03-31 DV Option Ex 10,417 .00 0
2022-12-31 DV Option Ex 10,417 .00 0
2022-09-15 DV Option Ex 6,471 .00 0
2022-09-15 DV Option Ex 6,471 .00 0
2022-09-15 DV Option Ex 6,471 .00 0
2022-09-15 DV Option Ex 6,471 .00 0
2022-09-15 DV Option Ex 6,471 .00 0
2022-06-30 DV Option Ex 10,417 .00 0
2022-06-15 DV Option Ex 6,471 .00 0
2022-03-30 DV Buy 2,000 25.63 51,258
2022-03-29 DV Buy 17,846 25.64 457,589
2022-03-15 DV Option Ex 6,471 .00 0
2021-07-21 DV Option Ex 86,581 .00 0

Table 2. Insider trading of Telaria, Inc. (TLRA) by Zagorski Mark

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2020-02-14 TLRA Option Ex 37,152 .00 0
2019-07-10 TLRA Option Ex 46,610 .00 0
2018-07-10 TLRA Option Ex 46,610 .00 0
2017-11-17 TLRA Buy 10,000 4.02 40,199
2017-08-11 TRMR Buy 41,865 2.42 101,313

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Zagorski Mark (Chief Executive Officer of Doubleverify Holdings, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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