X0407 4 2023-05-04 0 0001836176 Fathom Digital Manufacturing Corp FATH 0001315224 Fisher David C/O FATHOM DIGITAL MANUFACTURING CORP. 1050 WALNUT RIDGE DRIVE HARTLAND WI 53029 1 0 0 0 0 Class A Common Stock 2023-05-04 4 A 0 117514 A 160588 D Class A Common Stock 2023-05-04 4 A 0 152174 A 312762 D Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time (the "Incentive Plan"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vest on the earlier of (i) the first anniversary of the grant date, and (ii) the day before Issuer's 2024 annual meeting of stockholders, subject to the Reporting Person remaining in service as a member of the Issuer's Board of Directors (the "Board") through such vesting date. Represents shares of Class A Common Stock underlying RSUs issued under the Incentive Plan to the Reporting Person in lieu of cash retainer fees payable for service on the Issuer's Board and any committees thereof. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vest on the first anniversary of the grant date. /s/David Fisher, by James R. Brown as Attorney-in-Fact 2023-05-08