X0306 4 2022-04-14 0 0001836176 Fathom Digital Manufacturing Corp FATH 0001737962 Chen Carey C/O FATHOM DIGITAL MANUFACTURING CORP. 1050 WALNUT RIDGE DRIVE HARTLAND WI 53029 1 0 0 0 Class A Common Stock 2022-04-14 4 F 0 47083 7.41 D 1242978 D Shares forfeited to satisfy the mandatory tax withholding requirement upon vesting of restricted shares. This is not an open market sale of securities. /s/Carey Chen, by James R. Brown as Attorney-in-Fact 2022-04-18