Transaction Details

Footnotes

The securities reported represent shares of common stock of DoubleVerify Holdings, Inc. (the "Issuer") disposed of by Providence VII U.S. Holdings L.P. ("Providence VII") pursuant to a pro rata distribution-in-kind on September 9, 2025 to all partners of Providence VII (the "Distribution-in-Kind"). | R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez may be deemed to exercise voting and investment power over, and thus may be deemed to beneficially own, the securities held by Providence VII due to their relationships with Providence Holdco (International) GP Ltd. ("Holdco"). Each of Providence Equity GP VII-A L.P. ("Providence GP"), R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez hereby disclaims beneficial ownership of the shares held by Providence VII, except to the extent of its or his pecuniary interest therein, and this form shall not be construed as an admission that any such reporting person is the beneficial owner of any of the securities reported on this form held by Providence VII. | The securities reported are held directly by Providence VII and may be deemed to be beneficially owned by Providence GP because Providence GP is the general partner of Providence VII. R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez control Holdco, which is the general partner of Providence Fund Holdco (International) L.P. Providence Fund Holdco (International) L.P. is the general partner of PEP VII-A International Ltd., which is the general partner of Providence GP. | R. Davis Noell has separately filed a Form 4. | The securities reported represent shares of common stock of the Issuer disposed of by Providence Butternut Co-Investment L.P. ("Providence Butternut") pursuant to a pro rata distribution-in-kind on September 9, 2025 to all partners of Providence Butternut (the "Butternut Distribution-in-Kind"). | R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez may be deemed to exercise voting and investment power over, and thus may be deemed to beneficially own, the securities held by Providence Butternut due to their relationships with Holdco. Each of Providence GP, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez hereby disclaims beneficial ownership of the shares held by Providence Butternut, except to the extent of its or his pecuniary interest therein, and this form shall not be construed as an admission that any such reporting person is the beneficial owner of any of the securities reported on this form held by Providence Butternut. | Includes 30,720 shares of common stock of the Issuer received by J. David Phillips in the Distribution-in-Kind and the Butternut Distribution-in-Kind, which distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended. | Includes 35,749 shares of common stock of the Issuer received by Karim A. Tabet in the Distribution-in-Kind and the Butternut Distribution-in-Kind, which distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended. | The securities reported represent shares of common stock of the Issuer sold by Mr. Tabet in a sale in accordance with the requirements of Rule 144 under the Securities Act. | Includes 396 shares of common stock of the Issuer received by CSC Trustee 2 (Jersey) Limited in the Distribution-in-Kind, which distribution was made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended. | The securities reported represent shares of common stock of the Issuer sold by CSC Trustee 2 (Jersey) Limited in a sale in accordance with the requirements of Rule 144 under the Securities Act. | Includes 47,632 shares of common stock of the Issuer received by Andrew A. Tisdale in the Distribution-in-Kind, which distribution was made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended. | Represents a charitable donation of 47,632 shares of common stock of the Issuer made by Andrew A. Tisdale. | Includes 2,500 shares of common stock of the Issuer received by the AT 2020 Trust, for which Mr. Tisdale is trustee, in the Distribution-in-Kind, which distribution was made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended. | Includes 115,036 shares of common stock of the Issuer received by Michael J. Dominguez in the Distribution-in-Kind and the Butternut Distribution-in-Kind, which distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.