DoubleVerify Holdings Inc. Watch

from 10-K 6 pages Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 ​

from S-8 14 pages DoubleVerify Holdings, Inc. Employee Stock Purchase Plan

from S-8 24 pages DoubleVerify Holdings, Inc. 2021 Omnibus Equity Incentive Plan

from S-1/A 1 page DV Cusip 25862v 10 See Reverse for Certain Definitions and Legends 5 Incorporated Under the Laws of the State of Delaware This Certifies That Is the Record Holder of Fully Paid and Nonassessable Shares of Common Stock, $0.001 Par Value Per Share, of DoubleVerify Holdings, Inc. Transferable on the Books of the Corporation in Person or by Duly Authorized Attorney Upon Surrender of This Certificate Properly Endorsed. This Certificate and the Shares Represented Hereby Are Issued and Shall Be Held Subject to All of the Provisions of the Certificate of Incorporation and Bylaws of the Corporation, as Amended and Restated to Date (Copies of Which Are on File With the Corporation and With the Transfer Agent), to All of Which Each Holder, by Acceptance Hereof, Assents. This Certificate Is Not Valid Until Countersigned by the Transfer Agent and Registered by the Registrar. Witness the Facsimile Seal of the Corporation and the Facsimile Signatures of Its Duly Authorized Officers. Dated: Seal August 16, 2017 Chief Financial Officer, Treasurer and Senior Vice President Chief Legal Officer, Secretary and Senior Vice President Countersigned and Registered: American Stock Transfer & Trust Company, LLC (Brooklyn, Ny) Transfer Agent and Registrar By: Authorized Signature